Inventors list

Assignees list

Classification tree browser

Top 100 Inventors

Top 100 Assignees


Steering control

Subclass of:

701 - Data processing: vehicles, navigation, and relative location

701001000 - VEHICLE CONTROL, GUIDANCE, OPERATION, OR INDICATION

701036000 - Vehicle subsystem or accessory control

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
701042000 Feedback, transfer function or proportional and derivative (P& D) control 304
701043000 Fail-safe system 26
701044000 Artificial intelligence (e.g., fuzzy logic) 12
Entries
DocumentTitleDate
20130030653METHOD FOR CONTROLLING A STEERING APPARATUS - The invention relates to a Method so control a steering apparatus comprising following steps:01-31-2013
20130030652DEVICE COMBINING MOTOR DRIVEN POWER STEERING WITH COMPRESSOR, AND METHOD FOR CONTROLLING THE SAME - A device combining motor driven power steering with a compressor, may include a deceleration gearbox connected to a steering shaft, a motor selectively providing a steering force to the deceleration gearbox, a first electronic clutch mounted between the deceleration gearbox and a first shaft of the motor, and transmitting or discontinuing transmission of power from the motor to the deceleration gearbox, a power transmitting gear set transmitting power from the motor to a compressor, a second electronic clutch mounted between a second shaft of the motor and an input side of the power transmitting gear set, and transmitting or discontinuing transmission of power from the motor to the power transmitting gear set, and the compressor for an air conditioner, connected to an output side of the power transmitting gear set.01-31-2013
20130030651COLLISION AVOIDANCE MANEUVER THROUGH DIFFERENTIAL BRAKING - A collision avoidance system in a host vehicle that provides automatic steering control using differential braking in the event that the normal steering control fails. The system determines whether a collision with an object, such as a target vehicle, in front of the host vehicle is imminent, and if so, determines an optimal path for the host vehicle to travel along to avoid the object if the collision is imminent. The collision avoidance system may determine that automatic steering is necessary to cause the vehicle to travel along the optimal path to avoid the target. If the collision avoidance system does determine that automatic steering is necessary and detects that normal vehicle steering has failed, the system uses differential braking to steer the vehicle along the path.01-31-2013
20120203431VEHICLE DRIVING CONTROL APPARATUS - A vehicle driving control apparatus is provided at least with: a rudder angle varying device capable of changing a relation between a steering angle, which is a rotation angle of a steering input shaft, and a rudder angle, which is a rotation angle of steered wheels; and a trajectory controlling device for determining a control amount and controlling the rudder angle varying device such that a trajectory of a vehicle approaches a target driving route of the vehicle. The vehicle driving control apparatus is further provided with a correcting device for correcting (i) a rate of change in the rudder angle with respect to a steering amount of the steering input or (ii) the determined control amount, in accordance with whether or not a steering direction of the steering input inputted to the steering input shaft through a steering member by a driver of the vehicle is identical with a rudder angle control direction of the control amount determined by the trajectory controlling device.08-09-2012
20120173079METHODS AND SYSTEMS FOR EVALUATING VEHICLE STEERING SYSTEMS - Methods and systems are provided for evaluating a steering system of a vehicle, in which the steering system includes a steering column, steering rack, and pinion. The rack is manipulated as the steering system is mounted to a testing system. The steering column is also manipulated as the steering system is mounted to the testing system. Data is collected from the manipulating of the rack and the dithering of the steering column for use in evaluating the steering system.07-05-2012
20100017061INTEGRATED VEHICLE CONTROL SYSTEM USING DYNAMICALLY DETERMINED VEHICLE CONDITIONS - A vehicle includes a control system that is used to control a vehicle system. The control system determines a roll condition in response to a yaw rate sensor and a pitch rate sensor without having to use a roll rate sensor. A relative roll angle, relative pitch angle, global roll angle, and global pitch angle may also be determined. A safety system may be controlled in response to the roll condition, roll angle, or the pitch angles individually or in combination.01-21-2010
20100057298METHOD OF REDUCING STEERING INSTABILITY IN HYDRAULIC POWER STEERING SYSTEMS - A method for reducing steering instability in a hydraulic power steering system for a vehicle having a pair of cylinder lines through which hydraulic fluid is conveyed in assisting turning a vehicle wheel, including the steps of determining which of said pair of cylinder lines results in less steering instability when the vehicle wheel is turned; calculating the fluid inertance of the hydraulic fluid conveyed through the cylinder line that results in less steering instability; and altering at least one dimension of the cylinder line that results in greater steering instability when the vehicle wheel is turned to substantially match the fluid inertance thereof to the calculated fluid inertance.03-04-2010
20090143938ELECTRIC POWER STEERING APPARATUS - An electric power steering apparatus is provided for suppressing the effect on the steering wheel of external interference inputted from the tie rod. The apparatus includes first and second output units for outputting first and second control amounts in accordance with the outputted torque signal, except in a dead zone thereof, respectively. The apparatus also includes gain data output units for, when the torque signal, a steering angular velocity, and a vehicle speed are within predetermined ranges, outputting gain data respectively. Steering operation is assisted by an electric motor driven on the basis of the first and second control amounts and the gain data, which afford a control signal to the motor.06-04-2009
20090192678VEHICLE, VEHICLE CONTROL DEVICE, AND VEHICLE MANUFACTURING METHOD - A shape of a visible edge of a vehicle hood, a shape of a visible edge of a vehicle instrument panel, or a shape of a top edge of a ceramic line formed at a windshield glass is made to be a curve expressed by hyperbolic function y07-30-2009
20090192677Vehicle communication system and method - A vehicle communication system and communication steering wheel is provided. The communication steering wheel includes a display, a wireless transceiver configured to operably connect to a wireless device, a sensor, configured to obtain directional steering information and a controller, configured to receive input from the wireless transceiver and the sensor and output a signal to the display based on the received input.07-30-2009
20100049402PARKING ASSIST SYSTEM - The parking assist system assists the maneuvering for moving a vehicle to a reverse start position, then moving it in reverse from the reverse start position to a predetermined parking position in a manner as follows. A parking target setting section sets a parking target position corresponding to the predetermined parking position, based upon a parking reference detected based on image data captured from the scene around the vehicle. A parking path calculating section sequentially calculates a parking path from a present position of the vehicle to the parking target position, in the course of forward movement along a forward path. A parking path determining section determines whether an effective parking path has been established or not, based upon result of calculation by the parking path calculating section.02-25-2010
20120179333Method for Influencing the Steering Torque in a Vehicle Steering System - In a method for influencing the steering torque in a vehicle-steering system, in the event that the coefficient of friction between at least one vehicle wheel and the road surface undershoots a limit value, the torque generated in a device for steering-force assistance is varied in such a way that a steering motion in at least one steering direction is opposed by increased resistance.07-12-2012
20110202239STEERING SYSTEM - A steering controller for an electric power steering device 08-18-2011
20110202238ACTIVE STEERING CONTROLLER - A system for controlling a vehicle. The vehicle has a steerable front axle and at least one further steerable axle and the system comprises means for determining the path of a reference lead point at the front of the vehicle. There is also means for determining the path of a follow point at the rear of the vehicle, and means for driving the at least one further steerable axle of the vehicle such that the deviation between the path of the lead point of the vehicle and the follow point is within a predetermined range whilst the vehicle is in motion.08-18-2011
20120245796SYSTEM AND METHOD FOR CONTROLLING A TRAILER CONNECTED TO A VEHICLE - An articulated vehicle system can include a first vehicle selectively and pivotally connected to a second vehicle. A first powertrain can be mounted on the first vehicle to drive a wheel mounted on the first vehicle. A second powertrain can be mounted on the second vehicle to drive a wheel mounted on the second vehicle independent from the drive of the wheel of the first vehicle. The vehicle system may also include a controller in electrical communication with each of the first powertrain, second powertrain, and steering mechanism to assist in steering and power distribution, especially when reversing the vehicle system.09-27-2012
20130085640PARKING ASSIST SYSTEM AND METHOD FOR VARYING PARKING AREA - Technology for a parking assist system and method for varying a parking area is provided. The parking assist system includes an occupant's build sensing unit configured to sense an occupant's build in a vehicle when parking the vehicle; a control unit configured to set a distance after parking the vehicle between the vehicle and a wall surface of a parking lot according to the occupant's build and to calculate a parking trace; and an automatic steering unit controlled by the control unit and configured to automatically control steering of the vehicle according to the calculated parking trace.04-04-2013
20130079989DRIVABILITY EVALUATION TARGET LEVELS - The automobile described herein is configured with a system for capturing subjective and objective data related to automobile performance events. The automobile may comprise or be configured with a drivability evaluation system. This drivability evaluation system may be configured to capture subjective driver responses, monitor driver commands, and monitor automobile performance based on the driver commands. Moreover, the system may be employed in real world driving scenarios, where a driver's commands and the associated automobile responses are indicative of actual every day driving.03-28-2013
20130079990ROAD-TERRAIN DETECTION METHOD AND SYSTEM FOR DRIVER ASSISTANCE SYSTEMS - The present invention describes a road terrain detection system that comprises a method for classifying selected locations in the environment of a vehicle based on sensory input signals such as pixel values of a camera image. The method comprises a high level spatial feature generation for selected locations in the environment called base points. The spatial feature generation of the base points is based on a value-continuous confidence representation that captures visual and physical properties of the environment, generated by so called base classifiers operating on raw sensory data. Consequently, the road terrain detection incorporates both local properties of sensor data and their spatial relationship in a two-step feature extraction process.03-28-2013
20100145578ENTERTAINMENT SYSTEM INCLUDING A VEHICLE WITH A SIMULATION MODE - The entertainment system of the preferred embodiment comprises a first vehicle including a user interface adapted to accept a vehicle input from a first user. The first vehicle further includes an event sensor adapted to sense a first trigger event, and a processor connected to the user interface and to the event sensor and adapted to operate in the following modes: normal mode and simulation mode. In the normal mode, the processor controls the first vehicle based substantially on the vehicle input from the first user. In the simulation mode, the processor controls the first vehicle based on a modification of the vehicle input from the first user according to a first rule, which simulates a first physical event.06-10-2010
20130085639PROACTIVE ELECTRONIC STABILITY CONTROL SYSTEM - A method of controlling stability of a vehicle comprises monitoring vehicle information with an electronic control unit. An approaching unstable driving condition is detected from the vehicle information with an electronic control unit. A signal is sent from the electronic control unit to at least one vehicle system to apply at least one proactive vehicle stability control action prior to the occurrence of the unstable driving condition.04-04-2013
20120265403METHOD AND A SYSTEM FOR ASSISTING A DRIVER OF A VEHICLE DURING OPERATION - A method for assisting a driver of a vehicle during operation in order to avoid an undesired situation based on a current driving scenario includes predicting if a first guiding force to a vehicle steering device is desired in order to avoid the undesired situation and, if the first guiding force is desired, predicting a total guiding force comprising the first guiding force, which would be applied to the steering device for avoiding the undesired situation, comparing the predicted total guiding force with a limit value, and if the predicted total guiding force exceeds the limit value, in advance, deciding whether to apply the predicted total guiding force to the steering device for avoiding the undesired situation or not.10-18-2012
20130041556METHOD AND SYSTEM FOR ENABLING ELECTRICAL LOADS DURING AN ENGINE AUTO START - An automotive vehicle includes an engine, a plurality of electrical load subsystems, and at least one controller. During an auto start of the engine, the at least one controller detects a starter disengage condition. In response to detecting the starter disengage condition, the at least one controller periodically determines a value of an operating parameter associated with the vehicle, causes a first subset of the electrical load subsystems to be enabled when the value of the operating parameter falls with a first predefined range of values, and causes a second subset of the electrical load subsystems to be enabled when the value of the operating parameter falls within a second predefined range of values.02-14-2013
20130035826STEERING CONTROL DEVICE - Disclosed is a steering control device capable of adjusting reference points of a plurality of motions, which are used for a steering operation in a steering operating unit, with high precision. In the steering control device, a control unit performs N-point learning under the condition that the absolute value of an operating amount in operation systems other than a target is smaller than a predetermined value (or substantially 0). This makes it possible to suppress the influence of operation systems other than the target on the steering of a vehicle M during N-point learning, making it possible to learn the N point in the operation system of the target with high precision. With this N-point learning for each target, even in an operation system which can be steered through a plurality of motions, it is possible to learn the N point of each motion with high precision.02-07-2013
20100042294Triggering Method for Activating a Lateral Velocity Estimating System for Occupant Protection Devices - In a triggering method for activating a lateral velocity estimating system for occupant protection devices, one or more vehicle-dynamics variables are sensed and evaluated. Based on the sensed vehicle-dynamics variables an oversteer and understeer detection procedure and a road condition detection procedure are performed, which are evaluated for activation of the lateral velocity estimating system.02-18-2010
20100042295ELECTRIC POWER STEERING DEVICE - An electric power steering (EPS) device including a rack actuator that applies assist force to a rack shaft, a column actuator that applies assist force to a column shaft, and an ECU that controls operation of the actuators by supplying drive power to motors, each of which is a drive source of the corresponding one of the actuators. A permanent magnet motor (BLDC) is employed as the motor of the rack actuator and an induction motor, which is a non-permanent magnet motor, is used as the motor of the column actuator.02-18-2010
20090157260AUTOMATIC PARKING SYSTEM FOR VEHICLE - Disclosed herein is an automatic parking system for a vehicle. The automatic parking system employs a method of generating a parking trajectory in consideration of the operational performance of a steering motor connected to the steering wheel of a vehicle, thus guiding a vehicle through smooth parking and reducing an error between an ideal parking trajectory and an actual parking trajectory.06-18-2009
20090157259SYSTEM AND METHOD FOR PROVIDING GUIDANCE TOWARDS A FAR-POINT POSITION FOR A VEHICLE IMPLEMENTING A SATELLITE-BASED GUIDANCE SYSTEM - The present invention is a method for providing guidance towards a far-point position for a vehicle implementing a satellite-based guidance system. The method 06-18-2009
20090157258SYSTEMS AND METHODS INVOLVING QUADRANT DEPENDENT ACTIVE DAMPING - A method for controlling a steering system, including, receiving a first signal representative of a torque applied to a steering wheel, receiving a second signal representative of a motor velocity of a motor operatively linked to the steering wheel, multiplying the first signal with the second signal resulting in a product signal, applying a backlash function to the product signal, wherein the backlash function imparts a defined hysteresis in the system, multiplying a defined first-third quadrant scaling factor with an active damping signal, and sending a resultant motor command signal to the motor responsive to determining that the product signal is a positive signal, and multiplying a defined second-fourth quadrant scaling factor with the active damping signal, and sending the resultant motor command signal to the motor responsive to determining that the product signal is a negative signal.06-18-2009
20100106374VEHICLE STABILIZATION CONTROL DEVICE - A vehicle stabilization control device includes: an actual turning state quantity acquisition unit that acquires an actual turning state quantity indicating an actual turning state of a vehicle; a curve information acquisition unit that acquires the shape of a curve ahead of the vehicle; a vehicle speed acquisition unit that acquires speed of the vehicle; and a curve traverse possibility determination unit that determines a possibility that the vehicle can stably traverse the curve, based on the curve shape and speed of the vehicle; a control quantity computation unit that, to control braking force on each wheel and suppress understeering, computes a target control quantity for each wheel, based on the actual turning state quantity and on the possibility that the vehicle can stably traverse the curve; and a control unit controlling the braking force for each wheel, based on the target control quantity for each wheel.04-29-2010
20100106373Manual Tracking Adjustment - A construction vehicle including methods and apparatus for operator directed electronic tracking adjustment.04-29-2010
20100106372PARKING ASSIST SYSTEM - A parking assist system for guiding a vehicle under automatic steering control from a predetermined step position via a turning-direction switching position to a parking target position. With this parking assist system, based upon an operation of a steering wheel by a driver at the predetermined stop position, a parking mode and a parking target position corresponding to that parking mode are determined. And, regardless of the amount of the operation of the steering wheel given at the time of the determination of the parking mode, the vehicle is guided with a correction such that a deflection angle of the vehicle relative to the parking target position may be a predetermined deflection angle, at a corrected switching position nearby the switching'position.04-29-2010
20100106371CONTROL DEVICE IN A STEERING SYSTEM OF A VEHICLE - The invention relates to a control device for regulating or controlling a servo-drive unit in a steering system of a vehicle. In order to determine the initial zero position of the steering shaft the value of at least one vehicle state variable is taken into consideration as an input signal, said variable not being a steering angle variable. The steering shaft is in the initial zero position if said vehicle state variable within a defined range of values.04-29-2010
20120185132ELECTRIC POWER STEERING CONTROL DEVICE - An electric power steering control device includes: a vibration extracting filter for performing filter processing on a rotation speed of a motor to reduce a gain on a low frequency side so as to output a vibration-component signal; a current variable gain map for detecting a current flowing through the motor as a first state quantity so as to calculate a current variable gain based on the current; a rotation-speed variable gain map for detecting the rotation speed of the motor as a second state quantity so as to calculate a rotation-speed variable gain based on the rotation speed; a correction mechanism calculating a vibration suppression current; and current controller calculating a target current so as to control the current flowing through the motor.07-19-2012
20090125186Active Steering Nibble Control Algorithm for Electric Steering Systems - A system and method for actively cancelling steering nibble and/or brake judder in an electric power steering system using a controller and an electric motor by converting a selected wheel speed to a frequency, selecting a nibble order, determine nibble enable frequencies for cancellation, selecting a damping factor based on changes in vehicle velocity, calculating filter coefficients based on the selected damping factor, the selected nibble order and the wheel frequency, applying a gain scheduler to a steering column torque signal for the nibble enable frequencies, applying a tuned resonator filter to an output of the gain scheduler and using the filter coefficients to produce a nibble signal, calculating an active nibble cancelling torque signal from the nibble signal and applying the active nibble cancelling torque signal to the electric motor to cancel steering wheel nibble vibration.05-14-2009
20100094505Vehicle steering apparatus - A motor is driven based on an axis current value in a rotating coordinate system that rotates in accordance with a control angle that is a rotational angle used in a control. The control angle is calculated by adding an addition angle to an immediately preceding value of the control angle in each predetermined calculation cycle. A command steering torque is set based on a predetermined steering angle-torque characteristic. The addition angle is calculated based on the deviation of a detected steering torque from a command steering torque. The addition angle based on the deviation is changed when a predetermined condition is satisfied.04-15-2010
20080306654Parametric Remedial Action Strategy for an Active Front Steer System - A vehicle parametric active front steering (AFS) system remedial action is described herein. AFS system modules inter-communicate via messages containing parameters. The AFS system detects a message error, determines an invalid parameter, and takes appropriate remedial action. An error is detected if an error condition is satisfied or if occurrence of incorrect messages reaches or exceeds a certain predetermined frequency. The AFS system takes the remedial action by setting default values of valid parameters corresponding to the invalid parameter.12-11-2008
20100063680LEADER-FOLLOWER SEMI-AUTONOMOUS VEHICLE WITH OPERATOR ON SIDE - The illustrative embodiments provide a method and apparatus for controlling movement of a vehicle. User input selecting a path for the vehicle is received from an operator. The vehicle responds to the user input by moving along the selected path in a manner that maintains the operator on a side of the vehicle. The illustrative embodiments further provide a method and apparatus for improved machine control. The vehicle receives a power-up command, instructions to execute a planned path, and information identifying a leader. The leader is an operator. The vehicle then executes the planned path using the information identifying the leader in order to follow a path of the leader. The vehicle moves along the path in a manner that maintains the leader in a position proximate to a side of the vehicle.03-11-2010
20130046441PARKING ASSIST SYSTEM - In one aspect, the invention is directed to a parking assist system for a vehicle, wherein the parking assist system has two modes of operation. In a first mode a first overlay is added to an image of a rearward field of view displayed to the vehicle driver. The first overlay includes a representation of a target parking position. In a second mode a second overlay is added to the field of view displayed to the vehicle driver. The second overlay includes a representation of a projected path for the vehicle based on a current vehicle steering angle, and a representation of a target path segment for the vehicle.02-21-2013
20110010052VEHICULAR STEERING CONTROL APPARATUS - An ECU executes steering control in a vehicle including an electronic control power steering apparatus. In the steering control, it is determined that an assist motor is in a power generating state when a motor rotation speed ω which is the rotation speed of the assist motor is greater than an upper limit rotation speed ω01-13-2011
20110010051ELECTRIC POWER STEERING SYSTEM - In an electric power steering system, an ECU 01-13-2011
20110010050ELECTRIC POWER STEERING SYSTEM - A motor control signal output unit of an electric power steering system includes a feedback gain calculation unit (01-13-2011
20110010049METHODS AND SYSTEMS FOR END OF TRAVEL HARSHNESS REDUCTION - A control system for controlling a steering system is provided. The control system includes a first module that selectively determines a gain curve based on a position of a hand wheel of the steering system. A second module determines a motor assist command based on the gain curve.01-13-2011
20100138109METHODS AND SYSTEMS FOR CONTROLLING MOTOR CURRENT IN STEERING SYSTEMS OF VEHICLES EQUIPPED WITH ELECTRIC STEERING ASSIST - A method of controlling a motor current for a vehicle having a motor and a steering system includes the steps of obtaining a torque signal from the steering system, calculating a torque, and adjusting the motor current based at least in part on the torque signal, the torque gain, or both.06-03-2010
20100004821KS Lateral Guidance System Having a Modified Control Characteristics When Cornering - A device for keeping a vehicle in its lane, including a reference model, which obtains geometric data regarding the position of the vehicle in the lane as well as data relating to the course of the lane from a lane detection system, and from these calculates a setpoint variable for controlling the vehicle position. In order to allow for corners to be cut, the guiding behavior of the control system is modified in such a way when cornering that, in the event of a deviation of the path of motion of the vehicle from the setpoint path of motion in the direction of the inside of the curve, no or only low steering forces are applied to the steering system.01-07-2010
20090306855ELECTRONIC CONTROL APPARATUS AND METHOD FOR A STEERING SYSTEM - An electronic control apparatus has a microcomputer including a first CPU and a second CPU configured to perform calculation processing and control processing for a vehicle control device such as a variable gear ratio steering device. The first CPU and the second CPU calculate temporary detection values of an operation amount of an actuator based on a detection signal of a sensor, respectively. The temporary detection values are compared to determine whether the vehicle control device is controllable based on the detection signal of the sensor. Thus, the electronic control apparatus is reduced in size, and calculation results are monitored each other within one microcomputer.12-10-2009
20090306854Method for determining a set steering angle of steered wheels of a vehicle - The invention relates to a method for determining a set steering angle β12-10-2009
20090105909Rotational angle detecting device - In a steering angle detecting device for a steering shaft, gear tooth omission abnormality is detected with high accuracy without causing an increase in costs. A speed increasing side detecting gear and a speed reduction side detecting gear are rotated in conjunction with a rotor gear integral with a steering shaft, operation processing of sampling data from MR sensors 04-23-2009
20120191302Control Method for Electric Power Steering - The invention relates to a control method for a steering system with electric power assistance, comprising a steering wheel, an electric power assist motor, an electric control unit, which includes a memory for storing digital data, a motor driver unit which based on a target engine torque that is delivered to the motor driver unit, determines and sends out electrical signals for controlling the electric power assist motor, at least one sensor device for determining a control variable introduced into the steering wheel, for example a manual torque, wherein in the control unit with the help of the control variable a preset value is determined for a engine torque of the power assist motor, characterised in that in the memory an upper threshold value for the target engine torque is stored and for a case A, in which the preset value exceeds the upper threshold value, the control unit sends out the upper threshold value as the target engine torque to the motor driver unit and in a case B, in which the preset value does not exceed the upper threshold value, the control unit sends out the preset value as the target engine torque to the motor driver unit.07-26-2012
20120191301SAFETY DEVICE FOR AN ELECTRIC POWER STEERING SYSTEM - The invention relates to a control method for a steering system having electric power assistance, comprising a control means, for example a steering wheel, which can be controlled by a driver, an electric power assist motor, an electric control unit, which contains a memory for storing digital data, a driver unit (motor controller), which determines electrical signals for controlling the power-assistance motor in accordance with a target engine torque that was transmitted to the driver unit and outputs said electrical signals to the power-assistance motor, at least one sensor device for determining a control variable, for example a manual torque, introduced into the control means, wherein a preset value for a engine torque of the power-assistance motor is determined in the control unit with the aid of the control variable, wherein in addition, an upper threshold value for the target engine torque is stored in a limiting element, and for a case A in which the preset value exceeds the upper threshold value, the limiting element outputs the upper threshold value as a target engine torque to the motor driver unit, and for a case B in which the preset value does not exceed the upper threshold value, the limiting element outputs the preset value as a target engine torque to the driver unit.07-26-2012
20120191300OBSTACLE INDICATION AND AVOIDANCE - A vehicle obstacle avoidance indicator system includes multiple beam sources, such as laser radiation sources, mounted on the vehicle and positioned to emit respective directed energy beams from the vehicle, such that the beams intersect at a visible intersection point spaced from the vehicle along a direction of travel. The driver may observe the intersection in low visibility conditions, and upon seeing the intersection disappear and replaced by spaced-apart termination points of the beams, determine that an obstacle is to be avoided.07-26-2012
20130073146STEERING SYSTEM AND STEERING CONTROL APPARATUS - A steering system including a steering member provided in a vehicle and configured to be rotated, an adjustment apparatus configured to adjust a rotary direction vibration of the steering member, and a steering control apparatus configured to control the adjustment apparatus, in accordance with an operating condition of the vehicle, so as to adjust the vibration.03-21-2013
20130060425METHOD AND APPARATUS FOR ARRANGING MINING VEHICLE POSITIONING - The present invention relates to a method for positioning a mobile mining vehicle, which method determines scanning data by scanning the environment of the mining vehicle while being driven. Location information is determined for the mining vehicle on the basis of the scanning data and prestored environment model data. Level information is associated with the environment model data, the location level of the mining vehicle (03-07-2013
20130060424STEERING ARRANGEMENT FOR A VEHICLE WHICH IS MOVABLE ALONG A PREDEFINED PATH IN USE, BEING AUTOMATICALLY STEERED VIA AT LEAST ONE FIRST AXLE, AS WELL AS A VEHICLE PROVIDED WITH SUCH A STEERING ARRANGEMENT - A steering arrangement for a vehicle which is movable along a predefined path in use, being automatically steered via at least one first axle. Also disclosed is a vehicle provided with such a steering arrangement. Further disclosed is a method for moving a vehicle that is automatically steered via at least one first axle by a steering device along a predefined path. The steering arrangement is for use in an automatically guided and steered vehicle, i.e. without a driver, wherein the steering arrangement can continue to influence the steerage of the vehicle for a minimum period of time in case of a malfunction, such that the risk of dangerous situations or accidents is minimized.03-07-2013
20090299573SYSTEMS, METHODS AND DEVICES FOR ADAPTIVE STEERING CONTROL OF AUTOMOTIVE VEHICLES - A variety of methods, systems, devices and arrangements are implemented for automated assistance for a driver. One such method relates to a synergistic combination of automation and human control for a motor vehicle traveling on a lane, thereby allowing human-based decisions to be supplement (or be supplemented by) automated decisions. Specific aspects facilitate maintenance of the vehicle on the lane. The vehicle is automatically steered towards a lateral offset within the vehicle lane. Steering input from the driver results in changes to this lateral offset. This modification of the lateral offset can be used to allow the driver to follow any trajectory parallel to the road, including trajectories where the vehicle is not centered within the lane.12-03-2009
20090271072VEHICLE BODY DRIFTING RESTRAINING DEVICE - A vehicle body drifting restraining device which restrains a drifting of a vehicle body, wherein: when a brake control device operation prohibition switch, which prohibits an operation of a brake control device, is in a state of prohibition, a control for restraining the drifting of the vehicle body is prohibited.10-29-2009
20090271071METHOD FOR CONTROLLING A DRIVER ASSISTANCE SYSTEM - A method for controlling a driver assistance system having an LKS function of a vehicle is described. In the region of lane widening, a hypothetical lane which connects a starting lane to a destination lane is generated by the driver assistance system. In the region of the lane widening, the vehicle is guided along the hypothetical lane.10-29-2009
20090271070Method and apparatus for minimizing driver disturbance in a limited by-wire active steering system - A method is provided for limiting a steering angle overlay applied by a steering actuator in a limited by-wire active front steering (AFS) system. The method includes determining a maximum rate limit for the steering angle overlay in order to minimize an undesired disturbance to the driver in the form of a torque and/or angle feedback while maximizing the rate of steering overlay allowed for a given set of vehicle operating conditions. The maximum rate limit is determined by a function of the input steering rate and braking level. A limited AFS system includes both steering and braking input devices, a steering actuator, and a controller having an algorithm. The controller uses the algorithm to calculate the maximum overlay rate limit and limits the steering actuator to the maximum overlay rate limit.10-29-2009
20090271069CONTROL UNIT OF ELECTRIC POWER STEERING APPARATUS - According to the present invention, a control unit of an electric power steering apparatus transmitting a steering assist force generated by a motor to a steering mechanism so as to reduce a steering force, the control unit includes a steering angle sensor for detecting a steering angle, a torque sensor for detecting a steering torque, a vehicle speed detecting means for detecting a vehicle speed, and a control means for controlling the motor on the basis of the steering angle, a steering angular speed, the steering torque and the vehicle speed, and the control means has a handle return control function, and corrects a steering feeling in accordance with the steering angle on the basis of the handle return control function.10-29-2009
20090271073STABILITY CONTROL SYSTEM WITH BODY-FORCE-DISTURBANCE HEADING CORRECTION - A yaw stability control system for a vehicle detects and eliminates the vehicle yaw angle resulting from a body-force-disturbance and returns the vehicle to a pre disturbance heading. A yaw rate module generates a signal indicative of the vehicle yaw rate error. A yaw angle error module is triggered in response to a body-force-disturbance being detected by a body-force-disturbance detection unit, and performs integrations of the yaw rate signals to calculate a yaw angle error in order to obtain a correction of the vehicle yaw angle resulting from the body-force-disturbance. A yaw control module uses the yaw angle error in combination with the yaw rate error for a limited time period to generate yaw control signals that are sent to the vehicle brakes and/or active steering system for performing vehicle yaw stability control operations a signal to perform a body-force-disturbance yaw stability control operation for.10-29-2009
20090069977APPARATUS AND METHODS FOR AUTOMATICALLY ACTIVATING A MOTOR VEHICLE TURN SIGNAL LAMP - Motor vehicles and methods are provided for automatically activating a motor vehicle turn signal. One motor vehicle includes a navigation system configured to determine a route to a destination, the route having a turn. The navigation system is also configured to monitor a present location of the motor vehicle and automatically activate a turn signal when the motor vehicle approaches the turn. A navigation system includes means for receiving a destination from a user, means for generating a route to the destination, the route having a turn, and means for activating the turn signal. The activating means is configured to automatically activate the turn signal when the motor vehicle approaches the turn. One method includes determining a motor vehicle route to a destination, the destination having a turn, monitoring the present location of the motor vehicle, and automatically activating a turn signal when the motor vehicle approaches the turn.03-12-2009
20100082203Steering control device for vehicle - A steering control device for a vehicle includes: a position detection sensor for detecting a position of a road boundary and accessories in front of the vehicle; a road curvature radius calculator for calculating an outer curvature radius of a road; a turning radius calculator for calculating an appropriate turning radius; an appropriate distance calculator for calculating an appropriate road boundary distance between a front end of the vehicle and the road boundary in front of the vehicle; an actual distance detector for detecting an actual road boundary distance between the front end of the vehicle and the road boundary in front of the vehicle; and a steering wheel angle determination element for determining acceptability of the turning angle of the steering wheel based on comparison between the appropriate road boundary distance and the actual road boundary distance.04-01-2010
20090062986Guide-by-wire vehicle steering - Guide-by-wire vehicle steering involving (a) preparing a vehicle lane in a roadway with a passive, lane-following, elongate, lateral-triangulation responder, (b) equipping a selected vehicle having signal-controllable steering mechanism with a lateral-triangulation transceiver operatively associated, and interactive, with the responder, and signal-control-linked to the selected vehicle's signal-controllable steering mechanism, (c) with such a vehicle traveling along the roadway, interacting the transceiver and the responder, and (d) by such interacting, applying, as necessary, control signals from the transceiver to the vehicle's signal-controllable steering mechanism, thereby to control vehicle steering so as to assure vehicle following of the prepared vehicle lane. Also disclosed is system structure capable of performing these vehicle-steering steps, and selectively, additionally, communicating non-position roadway information in addition to steering-control information.03-05-2009
20090030573VEHICLE STEERING APPARATUS - A control ON/OFF determination unit determines that oversteer control should be started in the case where a slip angle differential value is equal to or greater than a predetermined threshold value, the sign of the slip angle differential value is identical with the sign of a yaw rate, the sign of a steering wheel turning angle is identical with the sign of a steering wheel turning speed, and a vehicle speed is equal to or greater than a predetermined threshold value.01-29-2009
20130066523CONTROL SYSTEM AND ELECTRIC POWER STEERING CONTROL DEVICE - A main control device generates a first signal and a second signal, which is substantially equivalent to the first signal, in accordance with the input signal, a sub-control device includes a comparison-judgment-processing unit that compares the first signal with the second signal, and judges that an abnormality occurs when a state, in which a deviation between the both signals is greater than equal to a predetermined value, is continued in a time being equal to a first predetermined time, and a limitation unit is configured in such a way that the limitation unit adds a predetermined limitation to the output of the main control device in accordance with a result for which the comparison-judgment-processing unit judges that the abnormality occurs.03-14-2013
20130066522STEERING SUPPORT SYSTEM FOR A TWO-WHEELER AS WELL AS A CONTROL FOR SUCH A STEERING SUPPORT SYSTEM - A control for a steering support system for a two-wheeled vehicle is provided. The steering support system has an actuator with the aid of which a steering torque is applied to the two-wheeled vehicle. The actuator is, for example, an electric motor which cooperates with a steering tube. The control triggers the actuator in a targeted manner to effect a desired steering torque. Furthermore, various sensors are provided for detecting vehicle dynamics parameters, such as a steering angle, a steering torque, accelerations acting on the two-wheeled vehicle, or speeds of wheels of the two-wheeled vehicle. Based on the parameters detected by the sensors, the actuator may be triggered to effect a steering torque.03-14-2013
20130066521CONTROL UNIT FOR VEHICLE STEERING SYSTEM - In a control unit for a vehicle steering system, which controls an electric motor that is used to change a steering angle on the basis of a target route for a vehicle, a turning angle of a steered wheel with respect to a central axis of a shock absorber is set as a steered element angle, and the steered element angle is used in control over the electric motor.03-14-2013
20130066520INERTIA COMPENSATION WITH FREQUENCY DEPENDENT DAMPING - A control system for an electric power steering system is provided. The system includes a motor and a control module in communication with the motor. The control module provides a compensation command to the motor. The control modules includes a frequency dependent damping module for determining a frequency dependent damping (FDD) coefficient based on a base assist command and a vehicle speed. The control module includes a coefficient module for determining a plurality of filter coefficients. The filter coefficients are based on the FDD coefficient, the vehicle speed, and an inertia compensation coefficient. The control module includes a filter module for determining the compensation command based on the plurality of filter coefficients.03-14-2013
20110022271MOTOR CONTROLLER AND ELECTRONIC POWER STEERING APPARATUS - An angle calculator detects a rotation angle θa of a rotor. A three-phase/d-q axis converter outputs detected current id, iq on d-q coordinate axes by making a conversion, based on a corrected detection angle θc obtained by adding or subtracting an amount of detection deviation from a time point of current detection to or from the detection angle θa. A command current calculator calculates command current id*, iq* on the d-q coordinate axes based on a steering torque T and a speed S. A feedback controller calculates command voltages vd, vq on the d-q coordinate axes based on the command current id*, iq* and the detected current id, iq. A d-q axis/three-phase converter converts the command voltages vd, vq into three-phase command voltages, based on a corrected detection angle θb obtained by adding an amount of detection deviation from a time point when a motor is driven to the detection angle θa. The deviation can be eliminated by the command voltages, and the motor can be driven with high precision.01-27-2011
20110022269PARKING SPACE MONITORING DEVICE - A parking space monitoring device that calculates a parking space with higher accuracy. The parking space monitoring device includes an obstacle detection unit (01-27-2011
20120116635CONTROL TARGET PROCESSING SYSTEM - A control target processing system includes: a first generating unit that generates first time-series data that are time-series data of an input value; a second generating unit that is formed of a plurality of processing units, that exchanges time-series data among the plurality of processing units, and that calculates intermediate computation values corresponding to the respective input values contained in the input time-series data in the respective processing units to thereby generate second time-series data that are time-series data of the intermediate computation value; a selecting unit that selects a selection value from among the second time-series data in accordance with a first selection condition; and an output unit that calculates and outputs a control variable for controlling a controlled object on the basis of the selection value.05-10-2012
20110046851REAR WHEEL STEERING VEHICLE - In a rear wheel steering vehicle equipped with a vehicle motion stability control system that can be selectively switched on and off, the motion stability of the vehicle is prevented from being impaired when an abnormal condition should develop to a rear wheel steering device of the vehicle. In addition to the rear wheel steering device, the vehicle is provided with an abnormal condition processing unit that turns on the vehicle motion stability control system upon detection of the abnormal condition of the rear wheel rear wheel steering device while the vehicle motion stability control system is turned off.02-24-2011
20110046850IN-VEHICLE IMAGE DISPLAY APPARATUS - An in-vehicle image display apparatus for use in a vehicle is provided which includes a state detecting device that detects a state of surroundings of the vehicle; a shape detecting device that detects a three-dimensional shape of an object to be detected in the surroundings of the vehicle; a display device that is provided at least in front window section of the vehicle and capable of displaying information over the window section; an image generating device that generates image data for displaying a three-dimensional image representing the state of the surroundings of the vehicle on the display device based on detection results from the state detecting device and the shape detecting device; and a display control device that makes the display device display a three-dimensional image represented by the image data generated by the image generating device.02-24-2011
20120232755DAMPING METHODS AND SYSTEMS FOR ELECTRIC POWER STEERING - A control system for controlling an electric power steering system is provided. The control system includes a first module that estimates a damping force based on an assist torque and a handwheel velocity. A second module generates a control signal based on the estimated damping force.09-13-2012
20090012677MULTIPLE-POSITION STEERING CONTROL DEVICE - A steering system includes a steered tire and a steering control device that controls the steered tire from a first operating position. The steering system further includes a steering control mount that supports the steering control device and is configured to allow the steering control device to rotate to a second operating position opposite the first operating position. An interlock is operable to disable the steering control device as it rotates between the first and second operating positions.01-08-2009
20100087988ELECTRIC POWER STEERING SYSTEM AND METHOD FOR CONTROLLING THE SAME - An electric power steering system includes an electric assist motor, a controller, a first corrector, and a second corrector. The electric assist motor is configured to assist steering according to a steering assist amount. The controller is configured to control the steering assist amount in accordance with an input steering force. The first corrector is configured to correct the steering assist amount with a correction amount in accordance with a steering torque during running on a cant road. The second corrector is configured to correct the correction amount in accordance with a steering angular velocity.04-08-2010
20100087989ELECTRIC POWER STEERING DEVICE - An electric power steering device for a vehicle includes: a steering wheel return control unit that performs a steering wheel return control when a direction of a steering angle and a direction of a steering angular velocity is different; and a μ-split control unit that performs a μ-split control in order to suppress a behavior of the vehicle traveling on a μ-split road; wherein when the μ-split control unit performs the μ-split control, a value of a steering wheel return control gain in the steering wheel return control unit is set to be lower than a value which is used when the μ-split control is not performed.04-08-2010
20110282550STEERING APPARATUS FOR A VEHICLE - A steering apparatus for a vehicle is provided in which since a steering wheel (11-17-2011
20110282549LANE MAINTENANCE CONTROL METHOD - Disclosed herein is a lane maintenance control method to control a vehicle to travel while accurately remaining in a given lane. The lane maintenance control method performs brake steering control in which, when a vehicle departs from a lane, a brake torque is applied to wheels of the vehicle close to the lane to generate an appropriate moment for lane maintenance, which allows the vehicle to finally move in an opposite direction of a direction in which the vehicle departs from the lane, resulting in accurate lane maintenance.11-17-2011
20090069978VEHICLE BEHAVIOR CONTROL APPARATUS - A control section includes a first turning direction estimating mechanism for estimating a first turning direction from a sign of the first yaw rate when an absolute value of the first yaw rate is a first threshold value or more, a second turning direction estimating mechanism for estimating a second turning direction from a sign of a difference between the second yaw rate and the second threshold value when the second yaw rate is not less than or not more than the second threshold value, a vehicle turning direction judging mechanism for judging that the direction when the first and second turning directions are the same is a turning direction of the vehicle and an abnormality judging mechanism for judging that the yaw rate sensor is abnormal when the turning direction and the direction of the actual yaw rate differs from each other.03-12-2009
20100268421METHOD OF RETURNING STEERING WHEEL USING MOTOR - A method of returning a steering wheel includes measuring steering torque and speed of a vehicle. A returning torque is determined using the measured torque, the measured speed and friction characteristics of a steering system. A motor is operated to rotate a steering wheel based on the returning torque.10-21-2010
20120290172METHODS AND APPARATUS FOR VARIABLE REDUCED EFFORT STEERING IN ELECTRIC STEERING SYSTEMS - Embodiments of the invention provide methods and apparatus for reducing steering effort in a vehicle. In one embodiment, a method for installing a steering-assist system onto a vehicle having an electrically powered steering system is provided. The method includes placing a controller between a torque sensor and an electronic control unit (ECU) disposed on the vehicle, coupling a primary signal line from the torque sensor to be in electrical communication with the controller, and coupling a secondary signal line to the controller to be in electrical communication with the ECU, wherein, when movement is detected by the torque sensor, the torque sensor provides a primary signal to the controller and the controller provides a secondary signal to the ECU, the secondary signal being different than the primary signal.11-15-2012
20120290174ELECTRIC POWER STEERING APPARATUS, CONTROL METHOD THEREOF AND COMPUTER READABLE MEDIUM - The electric power steering apparatus is provided with: a steering torque detector that detects steering torque of a steering wheel; an electric motor that applies steering assist force to the steering wheel; a current detector that detects an actual current actually supplied to the electric motor; a target current setting unit that sets a target current to be supplied to the electric motor, on the basis of the steering torque detected by the steering torque detector; a feedback controller that performs feedback control so that the target current and the actual current coincide with each other; and a feedforward controller that performs feedforward control for increasing the actual current detected by the current detector if the target current increases, the feedforward controller including a frequency compensator that provides a smaller amount of increase in the actual current as a frequency of a variation in the target current is lower.11-15-2012
20120290173VEHICLE CONTROL DEVICE - To perform appropriate travel control of a vehicle without applying an uncomfortable feeling to a driver, an ideal travel locus, that is a travel locus that becomes a target when travel control of the vehicle is performed, is set, plural guide target points which guide the vehicle when the travel control is performed are set on the ideal travel locus, and when the vehicle is guided to the guide target points, the vehicle is guided by making a degree of influence when the vehicle is guided at the plural guide target points different from each other. With the configuration, in a portion having a low degree of importance on the ideal travel locus, when the vehicle is guided by reducing the degree of influence of the guide target points, since the vehicle is guided in a state that a compelling force is small, the vehicle can be guided without applying an uncomfortable feeling to the driver. Further, in a portion having a high degree of importance on the ideal travel locus, when the vehicle is guided by increasing the degree of influence of the guide target points, since the vehicle is guided by a large compelling force, appropriate travel control of the vehicle can be performed.11-15-2012
20120290175CONTROL DEVICE OF ELECTROHYDRAULIC POWER STEERING APPARATUS - A power steering apparatus control device is provided with target rotation speed setting means, motor control means, and processing means. The target rotation speed setting means sets the target rotation speed of the electric motor base on the vehicle speed and the angular speed of the steering wheel. The motor control means controls the rotation speed of the electric motor to become the target rotation speed. The processing means detects an end contact state in which steering force is applied although the steering wheel reaches a mechanical operation limit when the drive load of the electric motor exceeds a threshold load and the time period when the state in which the steering angular speed is lower than a threshold angular speed is established reaches a threshold time period, and performs a protection operation for preventing the target rotation speed setting means from increasing the target rotation speed.11-15-2012
20110301814Method for Parking or Exiting a Parking Bay and for Avoiding a Collision of a Vehicle, and Corresponding Assistance Systems and Vehicle - An obscured state of a vehicle, in which a distance measuring sensor of an assistance system is obscured by a part of the vehicle, is automatically detected. If the obscured state is present, a steering intervention of the assistance system into a steering system of the vehicle during a parking or parking-bay-exiting process of the vehicle using the assistance system is automatically deactivated or prevented. Furthermore, to avoid a collision of the vehicle using the assistance system, a notification of an obscured state is automatically generated when the obscured state is present.12-08-2011
20110301813CUSTOMIZABLE VIRTUAL LANE MARK DISPLAY - A method of displaying virtual lane markings relative to a vehicle position within a roadway lane may entail reading vehicle data such as speed into a vehicle control module, determining if the vehicle data is above a particular threshold, switching a virtual lane display switch, determining weather conditions, and displaying virtual lane markings upon a vehicle windshield based upon a result of determining weather conditions. Detecting actual lane markings on one or both of a left side of the roadway lane and a right side of the roadway lane may be accomplished with a vehicle-mounted camera. Moreover, determining whether a steering wheel has rotated a predetermined number of degrees may further play a role in displaying the virtual lane markings on a windshield of the vehicle. From a driver viewing perspective through a windshield, virtual lane markings may be displayed on the windshield to overlay actual lane markings.12-08-2011
20120004807DYNAMIC SYSTEM COMPENSATOR FOR ACTIVELY CONTROLLED POWER STEERING SYSTEMS - A control method for an electric power steering system is provided. The method includes providing a power steering control signal; providing a disturbance cancel command; varying at least one filter based on a frequency of the disturbance cancel command; applying the at least one varied filter to the disturbance cancel command to generate a compensation signal; applying the compensation signal to the power steering control signal to generate a compensated control signal; and controlling the power steering system based on the compensated control signal.01-05-2012
20110288726Automatically Adjustable Axle Oscillation Stops - An automatically adjustable axle stop of an agricultural combine (11-24-2011
20110288728NAVIGATION METHOD, NAVIGATION SYSTEM, NAVIGATION DEVICE, VEHICLE PROVIDED THEREWITH AND GROUP OF VEHICLES - A navigation system is described comprising at least a first and a second navigation device (11-24-2011
20090287373CONTROL SYSTEM FOR A WORK MACHINE AND METHOD FOR CONTROLLING A HYDRAULIC CYLINDER - A control system for a work machine is provided, which system includes an electric machine, a hydraulic machine and at least one hydraulic cylinder. The electric machine is connected in a driving manner to the hydraulic machine. The hydraulic machine is connected to a piston side of the hydraulic cylinder via a first line and a piston-rod side of the hydraulic cylinder via a second line. The hydraulic machine is adapted to be driven by the electric machine and supply the hydraulic cylinder with pressurized hydraulic fluid from a tank in a first operating state and to be driven by a hydraulic fluid flow from the hydraulic cylinder and drive the electric machine in a second operating state.11-19-2009
20110295464METHODS AND APPARATUS FOR A VEHICLE EMERGENCY CONTROL SYSTEM - A vehicle control system defines a set of predetermined criteria relating to the motion of the vehicle and a set of vehicle actions associated with the set of predetermined criteria. The vehicle actions each specify a steering action and/or a braking action. Friction data indicative of a frictional attribute (for example, coefficient of friction) of the contact region between the vehicle and the surface is received. The predetermined criteria are modified based on the friction data. When one or more of the predetermined criteria are met, the system applies the corresponding steering and/or braking actions.12-01-2011
20130190983LANE DEPARTURE CONTROL SYSTEM - A lane departure control system is provided which works to control a lane departure of a vehicle. The lane departure control system determines a controlled angle between a heading direction and a target direction of the vehicle running in a lane. When the vehicle is expected to unintentionally leave the lane, the system steers the vehicle toward the center of the lane by the controlled angle at at least a first yaw rate in a first angular range and a second yaw rate in a second angular range following the first angular range. Each of the first and second yaw rates is changed at a constant rate. This results in simplified calculation of the schedule of changing the first and second yaw rates.07-25-2013
20130190987STEERING SYSTEM AND METHOD FOR TRAIN VEHICLE - A steering system, method, and computer-readable medium for controlling a steerable, self-propelled vehicle for travelling in an end-to-end series of steerable, self-propelled vehicles, the vehicle including a plurality of individually controllable propelling devices connected at a generally vertical pivot to an axle of the vehicle. The steering system includes: an angle sensor for detecting an inter-vehicle angular position between two of the vehicles and providing a corresponding signal indicative thereof; a distance sensor for detecting an inter-vehicle distance between two of the vehicles and providing a corresponding signal indicative thereof; and a controller system. The controller system is configured to: receive the signals from the angle sensor and the distance sensor, control a speed of each propelling device based on the inter-vehicle distance, and control an angle of each propelling device based on the inter-vehicle angular position07-25-2013
20100036562Driver Assistance System - In a driver assistance system having assistance functions determined by parameters, the driver assistance system is configured to be adaptive via modifiable parameters.02-11-2010
20090099730SATELLITE BASED VEHICLE GUIDANCE CONTROL IN STRAIGHT AND CONTOUR MODES - A method for steering an agricultural vehicle comprising: receiving global positioning system (GPS) data including position and velocity information corresponding to at least one of a position, velocity, and course of the vehicle; receiving a yaw rate signal; and computing a compensated heading, the compensated heading comprising a blend of the yaw rate signal with heading information based on the GPS data. For each desired swath comprising a plurality of desired positions and desired headings, the method also comprises: computing an actual track and a cross track error from the desired swath based on the compensated heading and the position; calculating a desired radius of curvature to arrive at the desired track with a desired heading; and generating a steering command based on the desired radius of curvature to a steering mechanism, the steering mechanism configured to direct the vehicle.04-16-2009
20090099729METHODS AND SYSTEMS FOR CONTROLLING STEERING IN A VEHICLE USING A PRIMARY ACTIVE STEERING FUNCTIONALITY AND A SUPPLEMENTAL ACTIVE STEERING FUNCTIONALITY - A method for controlling steering in a vehicle includes the steps of obtaining a vehicle steering communication, controlling an actuator coupled to a hand wheel, a road wheel, or both using a primary active steering functionality, if the vehicle steering communication reflects one or more of a plurality of types of specified errors, and controlling the actuator using the primary active steering functionality and a supplemental active steering functionality, if the vehicle steering communication does not reflect one or more of the plurality of types of specified errors.04-16-2009
20100114431Method for Controlling Vehicle Dynamics - A method for controlling vehicle dynamics includes acquiring steering torque data indicative of forces acting on at least one tire of a vehicle and acquiring image data by capturing images of an area outside the vehicle. The friction coefficient between a tire of the vehicle and a road surface is determined as a function of vehicle data including at least the steering torque data. The lateral velocity of the vehicle is determined as a function of vehicle data including the steering torque data and/or the image data. A vehicle dynamics control is performed as a function of the lateral velocity and the friction coefficient.05-06-2010
20100114430Steering system and method of steering a machine - A steering system for steering a machine having opposing first and second sides with first and second pairs of rotatably mounted rear wheels disposed along the respective sides and at least one rotatably mounted, spaced front wheel. The system includes at least one first drive unit and at least one second drive unit for rotating the rear wheels of the respective pairs, and a steering input device that provides a signal to a controller that produces drive unit request signals to control the drive units to rotate the associated rear wheels along one side at rotational speeds greater than those along the other side to facilitate turning.05-06-2010
20100114434PARKING ASSIST APPARATUS - A parking assist apparatus for guiding a vehicle to a target parking position includes an initial position guiding unit configured to generate an initial position guiding path at a predetermined timing, the initial position guiding path leading from a current position of the vehicle to an initial position where vehicle guidance to the target parking position is started. The initial position guiding unit is also configured to guide the vehicle along the initial position guiding path to the initial position. The apparatus also includes an obstacle detecting unit configured to detect an obstacle around the vehicle. When the obstacle detected by the obstacle detecting unit is located along the initial position guiding path, the initial position guiding unit generates the initial position guiding path such that the obstacle detected by the obstacle detecting unit can be avoided.05-06-2010
20100114432Method to isolate vehicle steering shock from the driver - The method, independent of specific means employed, of locking/un-locking the steering mechanisms of a vehicle for a time period measured in as little as milliseconds in order to isolate the driver of the vehicle from violent shocks as encountered when, for example, a vehicle strikes an obstruction with a steered wheel. Said method also includes the ability for users to pre-program, or to program from the driving position, various profiles of lock/un-lock to accommodate variations in the type of obstructions anticipated to be encountered as well as at least one default setting to take into account crash situations. The method of the present invention is independent of means so long as the result is to lock/un-lock the steering mechanism(s) for a fixed or a variable period measured in as little as milliseconds in order to isolate the driver from violent impacts to the steered Wheels/Tires of a vehicle being transmitted to the driver through the Steering Wheel. The intent of the present method is to protect the driver's hands and wrists, to require less concentration and physical exertion on the part of the driver when encountering obstacles, to allow for lighter and less power-consuming devices to assist steering, and to allow the vehicle to more closely maintain the path intended by the driver.05-06-2010
20100268418ELECTRICAL POWER ASSISTED STEERING SYSTEM - An electric power assisted steering system comprises a steering mechanism which operatively connects a steering wheel to the road wheels of the vehicle, an electric motor operatively connected to the steering mechanism; a torque signal generator adapted to produce a torque signal indicative of the torque carried by a portion of the steering mechanism, a column velocity signal generator for producing a column velocity signal indicative of the angular velocity of the steering wheel or steering column and a signal processing unit adapted to receive the output signals from the sensing means and to produce therefrom a torque demand signal representative of a torque to be applied to the steering mechanism by the motor.10-21-2010
20090143939Method and apparatus for maintaining instantaneous center for rotation of load transporter - A vehicle maneuvering system and method are provided. The system includes an input device coupled to a first vehicle and a processor. The processor is configured to determine if the first vehicle is a master vehicle or a slave vehicle to a second vehicle. If the first vehicle is the master vehicle, the processor determines an instantaneous center of rotation based at least partly upon an input received from the input device. If the first vehicle is the slave vehicle, the instantaneous center of rotation is received by the first vehicle. The system also includes a controller configured to position a wheel unit of the first vehicle with the path of the wheel unit being perpendicular to a line passing through the center of the wheel unit and the instantaneous center of rotation.06-04-2009
20090150027Electric power steering apparatus - An electric power steering apparatus is provided that has a controller by which no current flows in one phase among current paths of three phases for supplying electric power from a motor driving circuit to a three-phase brushless motor and currents that have an identical absolute value and that have different signs flow in the other two phases. Thus, the status at one energization angle on the driving current waveform of the three-phase brushless motor can be given continuously and relatively-high currents can simultaneously flow in opposite directions in the contacts inserted to the two phases. By flowing of such high current in the contacts, a secure conduction check can be performed and foreign matters on the surface of the contact can be fused or thermally destroyed.06-11-2009
20110264327VEHICLE CONTROL DEVICE - A vehicle control device capable of improving the reliability related to vehicle control is provided. The vehicle control device which controls a vehicle along the target trajectory includes a target trajectory setting section which sets the target trajectory of the vehicle. A clothoid section setting section sets a clothoid section with a fixed curvature change rate of the target trajectory. An elapsed time calculating section calculates the time elapsed after the vehicle enters the clothoid section. A vehicle control operation section calculates a tire angle command value, which is used for steering control of the vehicle, on the basis of the target trajectory set by the target trajectory setting section, which performs vehicle control in the clothoid section on the basis of the time elapsed calculated by the elapsed time calculating section, and the time elapsed calculated by the elapsed time calculating section.10-27-2011
20120035811Determination of a correcting variable for controlling a moment regulator in a vehicle steering system - So as to provide, with high accuracy, an actuating variable for actuating a torque control element in an electric vehicle steering system and achieve this with reduced complexity as compared to the known methods and devices, an actual torsion-bar torque (M02-09-2012
20120109462LANE KEEPING CONTROL SYSTEM, LANE CHANGE CONTROL SYSTEM AND VEHICLE CONTROL SYSTEM - Disclosed is control technologies related to lane keeping and lane change including a lane keeping control system, a lane change control system and a vehicle control system, which automatically suppress lane change to ensure safe lane change even if a driver fails to hear a warning sound or see a warning screen and does not recognize a situation in which lane change is dangerous.05-03-2012
20120239254METHOD FOR OPERATING A POWER STEERING - Disclosed is a method for operating a power steering system and to such a power steering system. A manual torque predetermined by a driver is superimposed in a superposition unit with a motor torque created by a motor. Impairment of the power steering system can thus be detected by evaluating rotational speed patterns of the motor.09-20-2012
20120239253METHOD FOR OPERATING A DRIVER ASSISTANCE SYSTEM AND DRIVER ASSISTANCE SYSTEM - A method is provided for operating a driver assistance system of a motor vehicle that includes, but is not limited to determining a parameter characterizing a traffic density in an area of the environment of the motor vehicle, determining a degree of the traffic density based on the parameter, and adapting a threshold value of the driver assistance system for an automatic actuation of at least one element of the motor vehicle, such as a braking apparatus, a drive apparatus, a steering apparatus, and a warning apparatus, as a function of the determined degree of traffic density. Additionally or alternatively, a degree of actuation of the at least one element is adapted as a function of the determined degree of the traffic density.09-20-2012
20120239252VEHICLE POWER STEERING CONTROL APPARATUS - There is provided a vehicle power steering control apparatus. A steering control unit sets a base assist torque Tb based upon a vehicle speed and a steering torque. When an obstacle ahead is detected by an image recognition device, the steering control unit calculates an overlapping ratio between the obstacle and the vehicle in the widthwise direction. When an absolute value of the overlapping ratio is larger than a predetermined threshold value, the steering control unit increases the base assist torque for correction, and when the absolute value is equal to or smaller than the predetermined threshold value, it decreases the base assist torque for correction. The steering control unit outputs the calculated value to a motor drive unit as a control quantity (assist torque).09-20-2012
20100121531CONTROLLER OF ELECTRIC POWER-ASSIST STEERING SYSTEM - The present invention discloses a controller of an electric power-assist steering system including a torque detector for detecting a torque applied with a steering wheel that steers a steering system; a steering status determining section for determining a steering status of either “turn” or “return” of a steering wheel; and a motor controlling unit for driving a motor n accordance with a target current value calculated based on at least a torque value from the torque detector and the steering status of either “turn” or “return” of the steering wheel from the steering status determining section, wherein the motor controlling unit sets a target current value right after a time when the steering status is switched between “turn” and “return” to be substantially equal to an actual current value right before a time when the steering status is switched between “turn” and “return”.05-13-2010
20090093930STEERING GUIDE DEVICE AND STEERING GUIDE METHOD - A steering detecting section (04-09-2009
20090093929STEERING DEVICE, BOARDING TYPE MOVING BODY WITH STEERING DEVICE, AND STEERING METHOD FOR MOVING BODY - A steering device for steering a moving body having moving means has: an operating part; a detecting part that detects a physical quantity based on a magnitude and direction of a force applied to the operating part; and a controller that drives the moving means based on the physical quantity detected by the detecting part and controls an amount of movement and a direction of movement of the moving body. The controller has a dead zone for controlling the amount of movement without receiving influence of the magnitude of the physical quantity until the physical quantity detected by the detecting part exceeds a predetermined threshold value, and determines the threshold value in accordance with a moving speed of the moving body.04-09-2009
20120143442AUTOMATIC FULL-TURN CONTROL METHOD FOR MDPS - An automatic full-turn control method for MDPS includes determining if automatic Full-Turn conditions for the MDPS are satisfied, full turning the MDPS when the automatic Full-Turn conditions for the MDPS are satisfied, determining if automatic Full-Turn releasing conditions for the MDPS are satisfied and releasing the Full-Turn of the MDPS when the releasing conditions for the MDPS are satisfied.06-07-2012
20090248248STEERING CONTROL DEVICE - In a steer-by-wire steering control device for a vehicle using a model following control based on yaw rate or lateral acceleration, the target steering angle(s) of front wheels and/or rear wheels (Sfbs, Srbs) are corrected according a roll rate (Rre) of the vehicle which may be either detected or estimated from a lateral acceleration or yaw rate. Thereby, the roll rate gain can be reduced, and the damping property and response property of the yaw rate can be improved.10-01-2009
20100125391METHOD FOR COMPENSATING STEERING OF MOTOR DRIVE POWER STEERING SYSTEM - Disclosed herein is a method for compensating steering of a motor drive power steering (MDPS) system. In this method, the MDPS system determines a slip of a vehicle, calculates a steering compensation value and controls a gain based on moment input from an electronic stability program (ESP) system under coordinate control between the MDPS system and the ESP system, so that stability of the vehicle can be enhanced by reducing heterogeneous steering and preventing over steering.05-20-2010
20100125390ELECTRICAL POWER ASSISTED STEERING SYSTEM - An electric power assisted steering system for a vehicle, comprising: a steering mechanism which operatively connects a steering wheel to road wheels of the vehicle, a torque sensor (05-20-2010
20100280715CONTROL APPARATUS FOR ELECTRIC POWER STEERING APPARATUS - The present invention provides a control apparatus for an electric power steering apparatus comprises: a steering assist command value calculating section; a current control section that calculates a voltage command value; and a motor driving section that drives a motor based on the voltage command value, wherein an assist power from the motor is applied to a steering system, the control apparatus is characterized in that an SAT measuring section, that inputs an angular speed and an angular acceleration of the motor, the steering assist command value and the torque signal therein so as to estimate an SAT, is provided, and the SAT obtained by the SAT measuring section is feedbacked to the steering assist command value via a feedback section composed of a phase compensating section and a gain section.11-04-2010
20100280714MOTOR CONTROLLER AND ELECTRIC POWER STEERING APPARATUS - An angle calculator determines an angle of a rotor. An angular speed calculator determines an angular speed of the rotor. A command current calculator determines a command current defined on a dq-axis. An open loop controller determines a command voltage defined on the dq-axis in accordance with a circuit equation of a motor, based on the command current and the angular speed. A dq-axis/three-phase converter converts the command voltage into a three-phase command voltage. A resistance calculator and a Φ-value calculator respectively determines circuit resistance including armature winding resistance and a number of armature winding linkages which are included in the circuit equation of the motor, based on temperature of the motor detected by a temperature sensor and with reference to a table or the like which is stored in advance.11-04-2010
20080208408METHOD AND DEVICE FOR PERFORMING A COLLISION AVOIDANCE MANEUVER - Disclosed is a method of executing a collision avoidance maneuver ahead of an object in the surroundings, with which the vehicle is on a collision course. To allow determining the avoiding path in a simplest possible fashion and, in particular, a simplest possible parameterization of the path, the avoiding path is given by a sigmoid (ƒ08-28-2008
20080208406Nonlinear vehicle yaw/roll/sideslip command interpreter - A command interpreter for a vehicle stability enhancement system that uses a three degree-of-freedom vehicle model employing non-linear suspension and tire characteristics to calculate stability commands. The command interpreter includes a calculator that calculates a front tire lateral force, a calculator that calculates a rear tire lateral force and a command calculator that calculates a yaw-rate command signal, a lateral velocity command signal and a roll angle command signal. The front tire lateral force calculator and the rear tire lateral force calculator calculate the front and rear side-slip angles. The side-slip angles are then converted to a lateral force, where the conversion is selected based on the tire vertical load. The rear tire lateral force is modified for high side-slip angles so that the rear tire lateral force does not become saturated.08-28-2008
20100100281Cruise Controller for Motor Vehicles and Method of Operating Same - A cruise controller and method are provided for motor vehicles for the purpose of adjusting the vehicle speed on the basis of a predefined setpoint speed. The cruise controller includes a monitoring device, which is designed to evaluate the vehicle state variables steering wheel angle, lateral acceleration, and/or yaw rate. If one of the evaluated vehicle state variables exceeds a predefined first vehicle state variable limit value, the cruise control function is switched into a standby mode.04-22-2010
20090276121VEHICLE STEERING CONTROL SYSTEM AND CONTROL METHOD THEREFOR - A vehicle steering control system that controls the operation of an electric vehicle steering device, which applies a steering assist force to a steering mechanism via a gear mechanism and includes: a temperature estimating section for estimating the temperature of or around the gear mechanism; and a correcting section for correcting the steering assist force according to the estimated gear temperature.11-05-2009
20090276122Steering system and method for train of wheeled vehicles - A steering system and method are capable of steering a plurality of vehicles arranged in a train with adjacent vehicles pivotally connected to each other for movement about a vertical axis. Each vehicle has a pair of steerable wheels with one pair at one end of the train being a selected leading pair having its steering angle determined by an operator. An electrical control system automatically steers all of the wheels trailing behind the leading pair. Vehicle angle sensors measure intercar angles between adjacent vehicles and provide this information to the control system. An indicator provides the controller with the current distance traveled by the train. Wheel angle sensors provide signals indicative of the current steering angle for each wheel pair. The controller adjusts the actual steering angle for each trailing pair to a desired angle by calculating adjustments based on the measurement inputs.11-05-2009
20110172882COLLISION MITIGATION SYSTEM - A collision mitigation system for a vehicle has a frame assembly including a pair of frame members extending longitudinally along opposite lateral sides of a vehicle. A bumper beam extends across forward end portions of the pair of frame members. The bumper beam has a curved asymmetrical profile for guiding movement of the vehicle during a front-end offset crash event.07-14-2011
20090037052Vehicle drive assist system - A control unit sets a current total risk function for each of white lines, guardrails, side walls, and three-dimensional objects existing around a vehicle, estimates a temporal change in the position of each object, and calculates a minimum of the total risk function at the vehicle position for each time. An objective function is generated for the time, and a turning control amount that minimizes the objective function at the time is calculated as a turning control amount of the vehicle. Risk functions provided when the vehicle moves by the turning control amount are set for respective routes. A final avoidance route is selected from the risk functions of the routes, and steering and braking are controlled.02-05-2009
20100145575Method for Providing a Lanekeeping Assistance Based on Modifying Mechanical Sources of Steering Torques - A method for providing a lanekeeping assistance for a vehicle includes determining road lane characteristics such as a road lane curvature. A vehicle velocity and a vehicle position with respect to a road lane are also determined. A desired steering angle is determined as a function of at least the road lane characteristics. A lanekeeping torque acting on the steering system of the vehicle in order to keep the vehicle on a desired path is determined as a function of at least the desired steering angle. The lanekeeping torque is generated by modifying at least one mechanical steering torque such as a jacking torque, an aligning torque, an inertia torque and a damping torque.06-10-2010
20110208392VEHICLE STEERING CONTROL APPARATUS - A vehicle steering control device includes a first calculation mechanism calculating a basic steering assistance force based on steering torque corresponding to steering operation by an occupant of a vehicle, an acquisition mechanism acquiring respective lateral forces of front wheels and rear wheels, a second calculation mechanism calculating, based on the lateral force on the rear wheels, a first steering correction force that reduces the basic steering assistance force and also calculating, based on the lateral force on the front wheels, a second steering correction force that increases the basic steering assistance force, and a steering force application mechanism applying a target steering assistance force to the vehicle, the target steering assistance force being obtained by adding the first and second correction steering forces to the basic steering assistance force.08-25-2011
20080275608Contro Assisting System For A Motor Vehicle - The inventive control-assisting system for a motor vehicle comprises a power steering (11-06-2008
20120046833INFORMATION PROVIDING DEVICE FOR VEHICLE - An information providing device includes: a vehicle condition detector for detecting a vehicle condition; a support information generating element for generating support information for a driver; and a tactile sensibility notification element in a steering wheel for notifying the support information to the driver. The steering wheel includes a wheel element having a base, a movable portion and a driving unit. The movable portion is relatively movable with respect to the base. The driving unit drives the movable portion according to the support information. The movable portion and the driving unit provide the tactile sensibility notification element. Movement of the movable portion provides notification of the support information.02-23-2012
20080281489Method for Controlling the Orientation of the Rear Wheels of a Vehicle - A method for controlling orientation of rear wheels of a vehicle, by a computerized control system, including a module for calculation of a deflection angle for the rear wheels as a function of a deflection angle of the front wheels. In the method, when the front wheels are oriented for a period of time such that the vehicle follows a curved trajectory with an inner side and an outer side, the rear deflection angle, as determined by the calculation module, is corrected and limited to a maximum value calculated instantaneously such that a rear corner then follows a trajectory remaining within the curved trajectory previously followed by a front corner and, furthermore, at a tangent to the same.11-13-2008
20080312791Apparatus and Method for Application of Force to a Steering Device - An apparatus for application of force to a steering device, e.g., of a motor vehicle, includes an operative apparatus associated with the steering device and a counterelement disposed on the steering device. The operative apparatus has an induction assemblage producing an electromagnetic force on the counterelement, and the counterelement has at least one electromagnetically influenceable region, so that a force displacing the counterelement with respect to the operative apparatus can be produced for application of force to the steering device.12-18-2008
20080312792Drive Assisting Method for Reversal Path with Drawn Vehicle - The invention relates to a drive assisting method for the reversal path of a vehicle which consists of a tow track and a trailer pivotable with respect thereto and is provided with a conventional mechanical steering device. The inventive method consists in selecting a target point (C), which the vehicle path should pass through, Determination in calculating the steering angle instruction β12-18-2008
20120185131SYSTEM AND METHOD FOR MANEUVERING A VEHICLE-TRAILER UNIT IN REVERSE TRAVEL - A system and method of maneuvering a vehicle-trailer unit in reverse travel uses at least one sensor generating output information representative of the a relative position between the vehicle rear and the trailer front. An electronic processing unit compares the measured quantity with a reference value and determines from the comparison whether the trailer deviates from a straight alignment with the vehicle. If the trailer is not aligned with the vehicle, the system can interfere with the vehicle's steering system, the trailer's brake system, or both.07-19-2012
20120296523VEHICLE PERIPHERY MONITORING DEVICE - In order to provide a vehicle periphery monitoring device in which excessive information is not displayed on a display device and the driver may intuitively have a sense of distance between their vehicle and an obstacle, the vehicle periphery monitoring device includes an image acquisition unit for obtaining a surrounding image of a vehicle captured by a photographing device mounted on the vehicle, an obstacle detection unit for detecting an obstacle present around the vehicle and its position, a traveling state detection unit for detecting a traveling state of the vehicle, a predicted path line generation unit for generating a predicted path line based on the traveling state of the vehicle detected at the traveling state detection unit, a highlighted display determination unit for determining highlighted display of a partial area including the obstacle of a predicted path area when the obstacle is present within the predicted path area defined by the predicted path line, and a display control unit for superimposing the predicted path line and the highlighted display on the surrounding image and displaying the superimposed image on a monitor device mounted in the interior of the vehicle.11-22-2012
20080208407VEHICULAR STEERING APPARATUS - A vehicular steering apparatus can accurately detect occurrence of a disturbance even where steering torque is limited, and can achieve a low cost and simple construction. The apparatus includes a road surface reaction torque detector that detects an actual road surface reaction torque received by tires of a vehicle from a road surface, a vehicle speed detector that detects a vehicle speed, a steering wheel angle detector that detects a steering angle of a steering wheel, a target road surface reaction torque calculation section that calculates a target road surface reaction torque based on the vehicle speed and the steering wheel angle, and a disturbance occurrence detection section that detects occurrence of a disturbance to the vehicle and outputs a disturbance state signal. The disturbance occurrence detection section includes a sign comparison section that compares signs of the actual and target road surface reaction torques.08-28-2008
20080249683Steering angle sensor - The present invention relates to a steering angle sensor, which includes a substrate. A shaft bore and a first gear are adapted on the substrate. The first gear has a shaft sleeve, which passes through the shaft bore. And a steering column of a steering wheel passes through the shaft sleeve. A second gear is adapted on the substrate, and is in mesh with the first gear. A rotary sensor is located atop and assembled with the second gear. Besides, a signal processing circuit is coupled electrically with the rotary sensor. By simply meshing the first and the second gears and passing the steering column of the steering wheel through the first gear, when the steering wheel turns, the second gear will be driven to turn as well, which, in turn, drives the rotary sensor. Thereby, the number of components in the steering angle sensor is reduced, and the volume thereof is reduced effectively as well.10-09-2008
20080319610Method and Device for Avoiding and/or Reducing the Consequences of Collisions Upon Evasion with Respect to Obstacles - A method and a device for assisting a driver of a vehicle to avoid collisions with obstacles are provided, in which method at least one obstacle is detected by way of at least one surroundings sensor, and data of the obstacle are ascertained. On the basis of the data of the obstacle and data of the vehicle, a vehicle deceleration that is favorable for assistance of an evasive operation is ascertained, and the vehicle is correspondingly decelerated.12-25-2008
20080288140Vehicle Driving Assistance System - A riskiness reference value Riskm is corrected and calculated for each target object according the a road surface friction coefficient based on a vehicle-to-target time and a collision allowance time, and a riskiness Riskm (ΔAm) for each three-dimensional object is set based on the riskiness reference value Riskm with a range which uses a probability distribution given in an azimuthal angle direction where each target object exists, whereby a riskiness Risk (ΔA) is set for each azimuthal angle. Then, alarming and brake controlling are made to be executed according to a riskiness Risk (0) at an azimuthal angle of 0, and a steering angle control amount θstrt is obtained from the current riskiness Risk (ΔA) of each azimuthal angle and an estimated riskiness Risk (ΔA)e of each azimuthal angle after a set time period.11-20-2008
20120296524IN-VEHICLE IMAGE DISPLAY APPARATUS - An in-vehicle image display apparatus for use in a vehicle is provided which includes a state detecting device that detects a state of surroundings of the vehicle; a display device that is provided at least in an entire front window section of the vehicle and capable of displaying information over the entire window section; an image generating device that generates image data for displaying a image of surroundings of the vehicle on the display device based on detection results from the state detecting device; and a display control device that makes the display device display an image represented by the image data generated by the image generating device.11-22-2012
20080201039DRIVING ASSIST DEVICE FOR VEHICLE - In a driving assist device for a vehicle, there are provided a specified-operation detecting device to detect that a specified operation is conducted by a driver at a normal driving state, a normal-driving-state stimulation proving device to provide the driver with a specified stimulation associated with the specified operation when conduction of the specified operation by the driver is detected, a collision-likelihood determining device to determine a likelihood of collision of the vehicle against an obstacle, a collision-avoidance operation determining device to determine a necessary operation to be conducted by the driver for avoidance of collision when the likelihood of collision of the vehicle against the obstacle is determined, and a collision-avoidance-state stimulation proving device to provide the driver with a stimulation associated with the necessary operation for collision avoidance so that the driver can be encouraged to conduct the necessary operation for collision avoidance.08-21-2008
20080243337LANE DEPARTURE AVOIDANCE SYSTEM - A lane departure avoidance system is provided with a rumble strip sensing device and a lateral lane departure rate determining component. The rumble strip sensing device is configured to detect an input from a rumble strip to a vehicle wheel that is indicative of a rumble strip engagement amount. The lateral lane departure rate determining component is configured to determine a lateral rate of lane departure of a vehicle based on a detection result of the rumble strip sensing device.10-02-2008
20080269988COMBINED GNSS GYROSCOPE CONTROL SYSTEM AND METHOD - A global navigation satellite sensor system (GNSS) and gyroscope control system for vehicle steering control comprising a GNSS receiver and antennas at a fixed spacing to determine a vehicle position, velocity and at least one of a heading angle, a pitch angle and a roll angle based on carrier phase position differences. The roll angle facilitates correction of the lateral motion induced position errors resultant from motion of the antennae as the vehicle moves based on an offset to ground and the roll angle. The system also includes a control system configured to receive the vehicle position, heading, and at least one of roll and pitch, and configured to generate a steering command to a vehicle steering system. The system includes gyroscopes for determining system attitude change with respect to multiple axes for integrating with GNSS-derived positioning information to determine vehicle position, velocity, rate-of-turn, attitude and other operating characteristics. A vehicle control method includes the steps of computing a position and a heading for the vehicle using GNSS positioning and a rate gyro for determining vehicle attitude, which is used for generating a steering command.10-30-2008
20100138110Method and Device for Determining A Steering Angle Offset - A method for determining a steering angle offset (LWO) in a vehicle having a steering unit and a steering angle sensor. A first frequency distribution (HV06-03-2010
20100145577METHOD AND APPARATUS FOR JOINTLY CONTROLLING MULTIPLE DEVICES - A method is provided for jointly controlling a plurality n, n being an integer greater than 1, of devices connected to a same communication channel, each of said devices D06-10-2010
20090037053Vehicle behavior control device - A basic-additional-yaw-moment setting section sets a basic additional yaw moment and determines the polarity of the basic additional yaw moment on the basis of a steering-wheel angle, a yaw rate, and a vehicle speed. A left-right driving-force distribution controller sets the driving-force distribution with respect to left and right driving wheels on the basis of the basic additional yaw moment and the polarity of the basic additional yaw moment, and adjusts the driving-force distribution when a vehicle drive control operation signal is output from a vehicle drive control unit. Specifically, the left-right driving-force distribution control section adjusts the driving-force distribution such that the polarity of the basic additional yaw moment is in the same direction as that of a yaw moment applied by the vehicle drive control unit.02-05-2009
20090030572TURNING BEHAVIOR DISPLAY DEVICE - A turning behavior display device, operable to display control condition of a turning behavior control unit which controls turning behavior of a vehicle in a turning direction by using a relative difference between a first torque acting on one of left and right wheels of the vehicle and a second torque acting on the other of the left and right wheels of the vehicle, includes: first display portions, provided for the left and right wheels, and adapted to increase or decrease in the turning direction in accordance with the relative difference from a reference section used when the first torque is equal to the second torque.01-29-2009
20090088925Drive Assist System - A drive assist system includes an assist starting part starting assist, a detection part detecting relative distances and speeds between a vehicles, a calculation part calculating collision risks when changing a lane by the basis of the relative distances and speeds, a first judgment part judging whether the lane can be changed by the relative distances, speeds and the collision risks, a decision part deciding a target space for lane change by the relative distances and speeds when the lane cannot be changed, a second judgment part judging whether a lane changeable space is in the target space, a setting part setting a target speed for the vehicle go to a lane change waiting position when no space and to setting a target speed the vehicle enters a lane changeable position when there is the space, and a control part controlling a speed of the vehicle reaches the target speed.04-02-2009
20090118905VEHICLE CONTROL DEVICE - A control input for operating an actual vehicle actuator and a control input for operating a vehicle model are determined by an FB distribution law based on a difference between a reference state amount determined by a vehicle model and an actual state amount of an actual vehicle such that the state amount error is approximated to zero, and then an actuator device of the actual vehicle and the model vehicle are operated based on the control inputs. The FB distribution law determines a control input for operating the model such that a state amount error is approximated to zero while restraining a predetermined restriction object amount from deviating from a permissible range. A vehicle control device capable of enhancing robustness against disturbance factors or their changes while performing operation control of actuators that is as suited to behaviors of an actual vehicle as possible is provided.05-07-2009
20090118904Method and system for planning the path of an agricultural vehicle - Embodiments of the present invention pertain to methods and systems for planning the path of an agricultural vehicle. In one embodiment, a first point of a first planned path and a second point of a second planned path are determined. A path plan is then automatically generated connecting the first point and the second point.05-07-2009
20130218415Method and System for Reducing a reaction Delay Time of a Vehicle Safety Control Device - Method for reducing a reaction delay time of a vehicle safety control device which makes interventions into the control of the vehicle as a result of a surrounding situation in which there is a risk of collision, wherein the vehicle safety control device makes a first intervention into the control of the vehicle before the surrounding situation in which there is a risk of collision is validated.08-22-2013
20100004822STEERING SUPPORT DEVICE - The present invention aims at providing a steering assistance apparatus which can accurately detect a curve exit of a running path and perform steering assistance control with an excellent running path following capability. The steering assistance apparatus of the present invention is a steering assistance apparatus 01-07-2010
20090143941VEHICLE CONTROL SYSTEM - A vehicle control system includes a steering wheel, such as an steering wheel, an adjusting device, a sensor and a control unit. The steering wheel may be actuated by the hand of an operator to set a state variable of the vehicle. The adjusting device applies a force to the steering wheel. A sensor senses a variable representing a state variable of the vehicle and transmits a sensor signal to the control unit. The control unit determines a state variable of the current operating state of the vehicle. The control unit, depending on the current operating state of the vehicle, controls the adjusting device so that a predetermined force is applied to the steering wheel, in order to make the operator aware of an unsafe operating condition.06-04-2009
20080319611Vehicle Anti-Skid Brake Control System and Its Control Method - An anti-skid brake control system and its control method for vehicle has a signal collection unit and an electronic control unit. The electronic control unit includes a data receiving module, a data processing module and a data control module. The data receiving module receives the data collected by the signal collection unit. The data processing module calculates sideslip angles and slip rates for wheels. The data control module sets target slip rates based on the slip rates corresponding to the friction coefficient μ for different sideslip angles. The device emits control commands after comparing the calculated slip rate to the set target slip rate, so that the ABS control is real time.12-25-2008
20110224873VEHICLE ASSEMBLY CONTROLLER WITH AUTOMATON FRAMEWORK AND CONTROL METHOD - The present invention relates to a controller for controlling the behavior of a vehicle assembly. The controller includes at least one processor coupled to ports. The ports are suitable for connecting to at least one sensor assembly and at least one actuator assembly of the vehicle assembly. The controller also includes memory containing a software product including computer readable instructions for execution by the processor. The processor executes the instructions so as to define automatons for performing respective behaviors when controlling the vehicle assembly. The present invention also relates to a method for controlling a vehicle assembly.09-15-2011
20090024280VEHICLE STEERING APPARATUS - A vehicle steering apparatus 01-22-2009
20090024279IN-LANE RUNNING SUPPORT SYSTEM, AUTOMOBILE AND IN-LANE RUNNING SUPPORT METHOD - The in-lane running support system includes a steering input device and a steering input detector. The in-lane running support system further comprises a reaction force device that changes a condition of the steering input device between a normal operation mode that provides a normal reaction force to the driver, and a hapthic operation mode that performs a notification operation to the driver, a turning output device that is in a state mechanically disconnected from the steering input device and that turns steerable wheels, and a turning output controller. A running state detecting device acquires information of a running state of the vehicle with respect to a lane. An in-lane running support device controls the turning output device and the haptic device based on the information of the running state such that the vehicle runs in the lane, and has a first control mode that controls the turning output control device and causes the reaction force device to operate in the normal operation mode, and a second control mode that controls the turning output control device and causes the reaction force device to operate in the haptic operation mode.01-22-2009
20090198416MATERIALS HANDLING VEHICLE HAVING A CONTROL APPARATUS FOR DETERMINING AN ACCELERATION VALUE - A materials handling vehicle is provided comprising: a frame; wheels supported on the frame; a traction motor coupled to one of the wheels to effect rotation of the one wheel; a speed control element operable by an operator to define a speed control signal corresponding to a desired speed of the traction motor; a system associated with a steerable wheel to effect angular movement of the steerable wheel; and control apparatus coupled to the speed control element to receive the speed control signal, and coupled to the traction motor to generate a drive signal to the traction motor in response to the speed control signal to control the operation of the traction motor. The control apparatus may determine an acceleration value for the traction motor based on at least one of an angular position of the steerable wheel, a speed of the traction motor and a current position of the speed control element as defined by the speed control signal.08-06-2009
20090198415DRIVE ASSIST SYSTEM AND METHOD - A drive assist system includes a drive assist means for providing drive assist to a driver, and a drive-assist limitation means for limiting the drive assist when the vehicle speed is equal to or at or below a minimum operational threshold speed. The drive assist system further includes a wakefulness level determination means for determining the level of wakefulness of the driver. The limitation of the drive assist is relaxed in accordance with the level of wakefulness.08-06-2009
20090198417Vehicular steering control apparatus and control method thereof - An operation torque estimating portion estimates an operation torque Th of a driver based on an input angle θh and an input torque T output from a torque sensor. A non-holding state detecting portion determines whether the driver is holding a steering wheel by comparing an absolute value of the operation torque Th and a predetermined value ε08-06-2009
20110144864VEHICLE STEERING APPARATUS - An electronic control unit determines the steering direction of rear wheels on the basis of the turning operation direction of a steering wheel when a detected vehicle speed is “0”, i.e. when the vehicle is stopped. If the steering direction of the rear wheels is a return-side steering direction to obtain a neutral steering position, the unit operates a rear wheel-side steering mechanism by driving and controlling an electric motor, whereby allowing return-side stationary steering for the rear wheels.06-16-2011
20090055049CONTROL APPARATUS OF ELECTRIC POWER STEERING APPARATUS - In a control apparatus of an electric power steering apparatus structured such as to control a motor applying a steering assist force to a steering mechanism on the basis of a current command value calculated from a steering assist command value calculated on the basis of a steering torque generated in a steering shaft and a current value of the motor, it is always possible to execute a high-performance control regardless of a steering speed, by setting a first differential compensator and a second differential compensator inputting a steering torque, making a sampling cycle of the second differential compensator slower than a sampling cycle of the first differential compensator, and adding outputs of the first differential compensator and the second differential compensator to the steering assist command value.02-26-2009
20110231061GNSS INTEGRATED MULTI-SENSOR CONTROL SYSTEM AND METHOD - A GNSS integrated multi-sensor guidance system for a vehicle assembly includes a suite of sensor units, including a global navigation satellite system (GNSS) sensor unit comprising a receiver and an antenna. An inertial measurement unit (IMU) outputs vehicle dynamic information for combining with the output of the GNSS unit. A controller with a processor receives the outputs of the sensor suite and computes steering solutions, which are utilized by vehicle actuators, including an automatic steering control unit connected to the vehicle steering for guiding the vehicle. The processor is programmed to define multiple behavior-based automatons comprising self-operating entities in the guidance system, which perform respective behaviors using data output from one or more sensor units for achieving the behaviors. A GNSS integrated multi-sensor vehicle guidance method is also disclosed.09-22-2011
20090082923METHOD FOR REDUCING THE ROLLOVER RISK IN VEHICLES - In a method for reducing the rollover risk in vehicles, at least one state variable which characterizes the transverse dynamics of the vehicle is ascertained and is used as the basis for an intervention into the steering system and the braking system which stabilizes the vehicle. A multivariable control is carried out in which two control loops are superimposed, the first control loop being based on control of the yaw rate and the second control loop being based on control of the transverse acceleration. The steering system as well as the braking system may be adjusted via the first and second control loops.03-26-2009
20110231060GYROSCOPIC STABILIZED VEHICLE - Embodiments of the invention describe receiving, via a plurality of sensors, data indicating vehicle information. Said information may indicate at least orientation of a frame of a vehicle, orientation of a front wheel of the vehicle with respect to the frame, orientation and rotational speed of a first and second flywheel, and speed of the vehicle. In one embodiment, each flywheel is included in a first and second gyroscope coupled to the vehicle frame.09-22-2011
20110231065POWER STEERING DEVICE - A power steering device is mounted on a vehicle and includes a torque applying unit and an applied friction torque changing unit. The torque applying unit sets an applied friction torque applied to a steering wheel based on a real steering angle and a target steering angle, and performs a control of applying the applied friction torque to the steering wheel. The applied friction torque changing unit changes the applied friction torque based on a load condition of the vehicle.09-22-2011
20110231063METHOD FOR SETTING BASIS FOLLOWING POSITION AND SYSTEM FOR LANE-KEEPING CONTROL - A disclosure relates to a basis following position setting method and a lane-keeping control system, and more particularly, the disclosure relates to a method for setting a basis following position, which sets a basis following position that a vehicle follows in reflection of a driving inclination of a driver, and a system for lane-keeping control, which causes a vehicle to follow the basis following position set by the method for setting the basis following position and thus performs a lane-keeping control function in reflection of a driving inclination of a driver.09-22-2011
20110231062METHOD AND SYSTEM FOR LANE-KEEPING CONTROL - The present invention relates to a lane-keeping control, and more particularly to a lane-keeping control method and system which can estimate in advance a vehicle condition at a predetermined distance ahead of the vehicle, and which allow lane-keeping control to be conducted stably and efficiently in accordance with the estimated result.09-22-2011
20110231059SELF-CENTERING, TORQUE-SENSING JOINT ASSEMBLY FOR A PALLET TRUCK POWER STEERING SYSTEM - A steering mechanism includes a handle with a tiller arm coupled to the handle via a flexible joint allowing relative movement of the handle about the tiller arm. A handle centering mechanism forming part of the steering mechanism includes a first end fixedly secured to the handle and a second end extending into a channel of the tiller arm. The second end compresses bumpers disposed on opposing sides of the second end. The bumpers urge the handle toward a neutral position wherein when a force is applied to move the handle away from a home position relative to the tiller arm, one of the compressed bumpers of the pair of compressed bumpers is further compressed. When the force is removed, the handle is returned to the home position by action of the pair of compressed bumpers. Preferably, the steering mechanism includes a torque sensing arrangement having a sensor and a magnet. The sensor produces a signal based on movement of the handle relative to the tiller arm by sensing changes in the magnet field of the magnet proportional to the torque exerted on the handle regardless of the angle of the tiller arm.09-22-2011
20110231057METHOD FOR GENERATING OFFSET PATHS FOR GROUND VEHICLES - A computer-implemented method for generating at least one segment of an offset path for a vehicle based on at least one segment of a base path is provided. The at least one segment of the base path is represented by a stored set of data points. The computer-implemented method includes comparing the at least one segment of the base path to a curvature constraint to determine if the at least one segment of the base path violates the curvature constraint. The curvature constraint is based on a characteristic of the vehicle and a desired offset distance from the at least one segment of the base path. The characteristic reflects the vehicle's ability to traverse at least one segment of a path. The method further includes modifying the at least one segment of the base path to satisfy the curvature constraint, if the at least one segment of the base path violates the curvature constraint. At least one segment of an offset path for the vehicle to follow is generated based upon the desired offset distance from the modified at least one segment of the base path.09-22-2011
20090099731Electric power steering system - A control unit estimates reverse transfer torque transferred from tires to a steering wheel and calculates an assist gain based on the reverse transfer torque. The control unit calculates basic assist torque demand by multiplying torsion torque detected by a torque sensor by the assist gain. The control unit further calculates assist torque command by adding compensation for stabilization. Since the assist gain is determined based on the reverse transfer torque, actual assist torque is generated in accordance with the force transferred from the road surface. Thus, a driver can operate the steering wheel while feeling the force from the road surface.04-16-2009
20120035810Steering control apparatus - In a steering control apparatus, a worm gear is configured to have a lead angle for a self-lock operation, by which a worm wheel is allowed to rotate by rotation of a worm but the worm is not allowed to rotate by rotation of the worm wheel. Thus, a lock mechanism need not be provided separately from a gear mechanism and the apparatus is reduced in entire size. A VGRS control part checks whether the worm gear has a self-lock failure, which disables the self-lock operation. If the worm gear has the self-lock failure, idling suppression processing is performed to suppress idling of a steering wheel. Thus, even when the self-lock failure arises, the steering wheel is suppressed from idling.02-09-2012
20120078471STEER CONTROL MANEUVERS FOR MATERIALS HANDLING VEHICLES - A materials handling vehicle automatically implements steer maneuvers when objects enter an environment around the vehicle. A steer correction maneuver is automatically performed by steering the vehicle away from the detected object, wherein an angle of steer correction and/or a rate of change of the steering angle that is implemented to achieve a desired angle of steer correction is dependent upon how far from a reference coordinate associated with the vehicle the detected object is determined to be.03-29-2012
20080262676STEERING RETENTION STATE JUDGING DEVICE, DRIVER WAKEFULNESS PREDICTING DEVICE, AND CORRECT COURSE KEEPING DEVICE - This steering wheel retention state judging device includes: a torque application unit that applies a torque on a steering wheel of a vehicle, the steering wheel operated by a driver; an angle sensor that detects a steering angle of the steering wheel; and a steering wheel retention state judging unit that judges a retention state of the steering wheel by the driver based on the steering angle of the steering wheel when the torque is applied by the torque application unit.10-23-2008
20080262677Vehicle body slip angle-estimating device and method and engine control unit - A vehicle body slip angle-estimating device which, in estimating a vehicle body slip angle with an algorithm using a nonlinear model, is capable of accurately estimating a vehicle body slip angle irrespective of whether the frequency of occurrence of a state during traveling of the vehicle. A basic value-calculating section calculates a basic value of a vehicle body slip angle with an algorithm using a neural network model. A turning state-determining section determines whether the vehicle is in a predetermined limit turning traveling state. A correction value-calculating section calculates a correction value with an algorithm using a predetermined linear model when the vehicle is in the predetermined state. In the other cases, the correction value is set to 0. A straight traveling-determining section sets the angle to the sum of the basic value and the correction value when the vehicle is in a turning traveling state.10-23-2008
20090204292Traction control system - A traction control system (08-13-2009
20090222167MULTI-DIRECTION VEHICLE CONTROL SENSING - A vehicle includes a first control configured to operate the vehicle from a first operator position facing a front of the vehicle and a second control configured to operate the vehicle from a second operator position facing a rear of the vehicle. The vehicle further includes a processor configured to monitor for an operator presence in the first operator position or the second operator position and receive a vehicle operating request, wherein the operator presence is monitored independent of receiving the vehicle operating request. The processor is further configured to enable either the first control or the second control and select a vehicle operating parameter associated with the vehicle operating request, wherein the vehicle operating parameter varies according to which control is enabled.09-03-2009
20090222166Method and Device for Steering a Motor Vehicle - A method for steering a motor vehicle in a collision avoidance maneuver ahead of an object in the front or lateral surroundings of the motor vehicle. It is arranged that a linear control method is employed, in which case one controller output signal (δ09-03-2009
20090259365PARK-STEER ASSIST SYSTEM AND METHOD FOR OPERATING A PARK-STEER ASSIST SYSTEM - The method relates to an operating method for a semi-automatic park-steer assist system (10-15-2009
20090254251VEHICLE BEHAVIOR CONTROL APPARATUS AND CONTROL METHOD - A vehicle behavior control apparatus includes a rotary body formed as a part of a power plant installed in a vehicle, and a shaft deflection unit that sets a vehicle behavior target value for obtaining a target vehicle behavior, and deflects a direction of a rotary shaft of the rotary body relative to a vehicle body in accordance with the vehicle behavior target value. Thus, the vehicle behavior can be controlled appropriately by using a pre-existing vehicle constitutional component such as an engine or a motor as the rotary body, and using a gyro moment generated by deflecting the direction of the rotary shaft of the rotary body.10-08-2009
20090150026SYSTEMS AND METHODS FOR DETERMINING AN ABSOLUTE ROTATIONAL POSITION OF A VEHICLE HANDWHEEL - Systems and methods for determining an absolute rotational position of the vehicle handwheel are provided. In one exemplary embodiment, a method includes determining a slope value based on the delta torque value associated with the vehicle steering system and the delta rotational position value associated with a vehicle handwheel. The method further includes setting an absolute position value indicating the absolute position of the vehicle handwheel equal to a predetermined steering travel limit of the vehicle handwheel when the slope value is within a predetermined slope range.06-11-2009
20090143940Steering control for a vehicle - A control system for steering at least one vehicle including a first plurality of sensors operably coupled to a respective wheel of the vehicle, a second plurality of sensors operably coupled to a respective input device, and a vehicle controller. The vehicle controller is operably coupled to the sensors and each respective wheel for controlling the velocity of each wheel to achieve a desired speed and direction based on the data signals received from the sensors. The vehicle controller controls the velocity of each wheel independently to achieve the desired speed and direction of the vehicle.06-04-2009
20090259366ELECTRIC STEERING LOCK DEVICE - There are provided a lock member configured to be displaced between a locking position for prohibiting rotation of a steering shaft and an unlocking position for permitting rotation of the steering shaft, a first detection switch (SW10-15-2009
20100152971STEERING CONTROL APPARATUS - A steering control apparatus includes a rack shaft connected to steerable wheels and having rack teeth in a given axial range, a first steering mechanism having a reduction gear and a first electric motor to apply a drive force to the rack shaft through the reduction gear, a second steering mechanism having a second electric motor, a power cylinder equipped with hydraulic pressure chambers, an oil pump driven by the second electric motor to provide a supply of hydraulic oil to the hydraulic pressure chambers such that the power cylinder applies a driving force to the rack shaft in accordance with a pressure difference between the hydraulic pressure chambers and a switching unit capable of selectively switching the supply of hydraulic oil from the oil pump to the hydraulic pressure chambers, and a control device that controls the first and second electric motors in response to a driver's steering operation.06-17-2010
20120197493ELECTRIC POWER STEERING APPARATUS FOR VEHICLE - A steering angle estimation section calculates a front-wheel-side estimative steering angle and a rear-wheel-side estimative steering angle through use of wheel speeds of respective wheels, and averages these steering angles to thereby obtain an accurate estimative steering angle. It also calculates an estimative steering angle difference between the steering angles. An axial force estimation section calculates a base axial force through use of the estimative steering angle and a vehicle speed, and calculates a correction axial force which applies an axial force difference (hysteresis) to the base axial force in accordance with a turning or returning operation by a driver. The axial force estimation section adds the base axial force and the correction axial force together to thereby calculate an accurate estimative axial force. An assist computation section compares a target steering torque, which changes with the vehicle speed, and the accurate estimative axial force, and subtracts the target steering torque from the estimative axial force, to thereby calculate an assist torque.08-02-2012
20120197492Method for Assisted Parking in a Parking Space, and Device for that Purpose - In a method for assisted parking of a vehicle in a parking space with the aid of a parking-assistance device which guides the vehicle along parking trajectory, the vehicle is guided along a first segment of the parking trajectory up to an intermediate point which is determined in such a way that it is possible to pull the vehicle into either a parallel or a diagonal parking space, and it is identified whether the parking space is a parallel or a diagonal parking space. The vehicle is guided along a second segment of the parking trajectory which is selected depending upon whether the parking space is a parallel or a diagonal parking space.08-02-2012
20100185363METHOD AND DEVICE FOR THE CONTROL OF A DRIVER ASSISTANCE SYSTEM - The invention relates to a method and a device for the control of a driver assistance system (07-22-2010
20100191421OPERATING METHOD AND SYSTEM FOR SUPPORTING LANE KEEPING OF A VEHICLE - A system and an operating method are provided for supporting lane keeping of a vehicle equipped with a steering device. The system and operating method include providing vehicle related information; providing environment related information; combining vehicle and environment related information; predicting a future trajectory of the vehicle based on vehicle and environment related information; estimating a desired lateral lane position of the vehicle and/or a guiding force; comparing the future trajectory and the desired lateral lane position; deciding if a guiding force is to be provided to the steering device; and, if guiding force is to be provided, defining an amount of said guiding force depending on a hierarchically ordered set describing a predetermined driving behavior of the vehicle, adapting the amount of guiding force depending on the direction in which the vehicle is intended to move and activating one or more actuators for supplying the adapted amount of guiding force to the steering device.07-29-2010
20100228441ELECTRIC POWER STEERING SYSTEM DESIGNED TO GENERATE TORQUE FOR ASSISTING DRIVER'S TURNING EFFORT - In a steering system, a generator generates a first commanded value for assist torque, and a converter converts a second commanded value for the assist torque to a commanded current value. A current controller controls a drive current for driving a motor for generating the assist torque. A characteristic limiter is functionally interposed between a commanded-value generator and a converter, and limits, to a preset characteristic range, a characteristic of a functional downstream of the converter in the steering system. The functional downstream of the converter in the steering system includes a steering mechanism including the motor. The commanded-value generator inputs, to the characteristic limiter, the first commanded value. The characteristic limiter determines the second commanded current value for the assist torque based on the characteristic of the functional downstream and the first commanded value.09-09-2010
20110112723METHOD AND DEVICE FOR CONTROLLING THE STABILITY OF A VEHICLE, IN PARTICULAR A UTILITY VEHICLE - The invention relates to a method and a device for controlling the stability of a vehicle, in particular a utility vehicle, in which an anti-tilt control method is carried out in which at least one lateral acceleration signal (ay), one steering wheel angle signal (LRW) and one vehicle speed signal (v) are sensed and control signals (S05-12-2011
20100161179INTEGRATED DEAD RECKONING AND GNSS/INS POSITIONING - An integrated dead reckoning (DR) and GNSS/INS control system and method are provided for guiding, navigating and controlling vehicles and equipment. A controller generally prioritizes GNSS navigation when satellite signals are available. Upon signal interruption, DR guidance can be integrated with INS to continue autosteering and other automated functions. Exemplary applications include logistics operations where ships, cranes and stacked containers can block satellite signals.06-24-2010
20100161178VEHICULAR STEERING CONTROL DEVICE - A vehicle steering control apparatus (06-24-2010
20100161180MOTOR-DRIVEN STEERING CONTROLLER AND AUTOMOBILE ANTI-SKID CONTROLLER - A motor-driven steering controller for controlling a steering wheel of a vehicle. The controller includes a steering torque controlling unit, a braking force estimating unit, a right and left braking force difference estimating unit and an assist steering torque providing unit. The steering torque controlling unit controls a steering torque on the steering wheel depending on a steering operation. The braking force estimating unit estimates braking forces to be imposed on wheels of the vehicle. The right and left braking force difference estimating unit estimates difference between the braking forces to be imposed on the right and left wheels each estimated by the braking forces estimating unit. The assist steering torque providing unit provides an assist steering torque for the steering torque controlling unit on the basis of the difference in braking force between right and left wheels estimated by the right and left braking force difference estimating unit.06-24-2010
20100228439STEERING SYSTEM FOR ENGINEERING VEHICLE - A hydraulic steering unit 09-09-2010
20100228440STEERING CONTROL APPARATUS AND A STEERING APPARATUS USING THE SAME - A steering control apparatus includes: a friction torque setting mechanism setting a friction torque value to be applied to a steering based on information representing a status of a vehicle; a target steering angle setting mechanism setting a target steering angle based on the set friction torque value; an adding friction torque setting mechanism setting an adding friction torque based on a deviation between the set target steering angle and a steering angle; and a steering friction torque controller controlling a friction torque applied to the steering by an actuator based on the set adding friction torque.09-09-2010
20100235050PARKING ASSIST APPARATUS - A parking assist apparatus (09-16-2010
20100235047ELECTRIC POWER STEERING CONTROL SYSTEM - Intended is to solve the problem of an increase in the cost of an electric power steering control system, the oscillations of which are suppressed by estimating and feeding back the oscillation frequency components of a motor rotating speed through an observer from a steering torque signal and a current signal for driving a motor, no matter whether a phase compensator might be made of an analog circuit or a software. In order to solve this problem, there is provided the electric power steering control system, in which the phase compensator of the steering torque is made of an analog circuit and in which an anti-phase compensator is made over the software of a microcomputer, thereby to eliminate the changes in the gain and the phase by the phase compensator of the analog circuit near the oscillation frequency, so that the steering torque signal equivalent to that of no phase compensation necessary for the computation at the observer is computed from the phase-compensated steering torque signal.09-16-2010
20100228442VEHICLE OPERATION ASSISTING SYSTEM - When a collision avoidance operation determiner determines a collision avoidance operation by a driver, a target assist electrical current calculator calculates a target assist electrical current based on a deviation between a standard yaw rate corrected in accordance with avoidance momentum calculated by an avoidance momentum calculator and an actual yaw rate; and the target assist electrical current is supplied to a steering actuator to assist the collision avoidance operation by the driver. At this time, when an under-steer determiner determines an under-steer state, an assist electrical current is decreased by a reaction force electrical current calculated in a reaction force electrical current calculator. Therefore, a steering angle is prevented from becoming too large due to excessive assist, thereby facilitating a return operation after avoiding an obstacle.09-09-2010
20110112721Towable Agricultural Implement Having Automatic Steering System - A steering system for a towable implement includes a steering sensor, an implement steering controller, a steering control valve, a steering cylinder, and an implement steering mechanism that steers the implement. The steering sensor measures, directly or indirectly, the angular position of the steerable wheels of the implement. The implement steering controller processes feedback from the steering sensor and with a desired steering angle, outputs a steering control signal that is input to the steering control valve. The steering control valve controls the flow of hydraulic fluid to the steering cylinder, which, in turn, powers the implement steering mechanism to turn the wheels of the implement. The steering system may be operated in various control modes, such as, a transportation steering mode, a corner and 180 turn steering mode, a swath tracking steering mode, crab steering mode, and a manual steering mode, which allows manual control of the steering system.05-12-2011
20100222966STEERING CONTROL APPARATUS, STEERING CONTROL SYSTEM, AND STEERING CONTROL PROGRAM - Embodiments of the invention provide a computer program product embodied on a computer readable storage medium. The computer program product is encoded with instructions configured to control a controller to perform a process. The process includes setting a target steering angle for the vehicle based on a steering amount of the vehicle, setting a target torque difference between right and left steered wheels based on the target steering angle, and setting a target driving/braking force for the vehicle based on an acceleration amount and a braking amount of the vehicle. The process also includes setting each target torque for the right and left steered wheels based on the target torque difference and the target driving/braking force and controlling driving of the steered-wheel motors based on the target torque. The kingpin point is positioned closer to the vehicle on an inside portion of an inside sidewall of a steered wheel.09-02-2010
20100235052Method Of Determining A Steering Angle In A Motor Vehicle - A method for determining a steering angle of a steering shaft in a motor vehicle is disclosed. The method uses a rotation sensor associated with an electric motor of a power steering system to determine the relative steering angle of the steering column. The relative steering angle is measured relative to an initial position of the steering column during vehicle startup. The relative steering angle is reset each time the motor vehicle is turned on.09-16-2010
20100228438METHOD FOR ADJUSTING A STEERING SYSTEM IN A VEHICLE - In a method for adjusting a steering system in a vehicle, a setpoint trajectory is produced to which a tolerance corridor is assigned, a basic steering torque for guiding the vehicle within the tolerance corridor being generated. In the event that the vehicle leaves the tolerance corridor, a steering guidance torque which acts upon the vehicle in the direction of the tolerance corridor is superimposed on the basic steering torque.09-09-2010
20100228437VEHICLE AND STEERING CONTROL DEVICE FOR VEHICLE - A steering control device for a vehicle has a steering assistance means (09-09-2010
20100145576VEHICLE06-10-2010
20100241314STEERING DEVICE FOR ADJUSTING A WHEEL STEERING ANGLE - A steering device for adjusting a wheel steering angle of a wheel of a motor vehicle is disclosed, which steering device has a wheel guide member and a steering control unit. The steering control unit includes a basic steering function and an actuator travel control system for adjusting travel of the wheel guide member on the basis of a steering angle setpoint value.09-23-2010
20100235049Motor control unit and motor control unit for vehicle steering apparatus - A motor control unit controls a motor including a rotor and a stator facing the rotor. A current drive unit drives the motor at an axis current value of a rotating coordinate system that rotates in accordance with a control angle that is a rotational angle used in a control. A control angle calculation unit obtains, at every predetermined calculation cycle, a present value of the control angle by adding an addition angle to an immediately preceding value of the control angle. A torque detection unit detects a torque other than a motor torque and applied to a drive target driven by the motor. A command torque setting unit sets a command torque to be applied to the drive target. An addition angle calculation unit calculates the addition angle to be added to the control angle through a proportional-integral control based on a torque deviation of the torque detected by the torque detection unit from the command torque set by the command torque setting unit.09-16-2010
20100235048PROCESS AND DEVICE FOR DETERMINING A STEERING WHEEL ANGLE - A process is provided for determining a steering wheel angle (δ09-16-2010
20100235051MOTOR CONTROL UNIT AND MOTOR CONTROL UNIT FOR VEHICLE STEERING APPARATUS - A motor control unit controls a motor including a rotor and a stator facing the rotor. A current drive unit drives the motor at an axis current value of a rotating coordinate system that rotates in accordance with a control angle that is a rotational angle used in a control. An addition angle calculation unit calculates an addition angle to be added to the control angle. A control angle calculation unit obtains, at every predetermined calculation cycle, a present value of the control angle by adding the addition angle that is calculated by the addition angle calculation unit to an immediately preceding value of the control angle. A torque detection unit detects a torque that is other than a motor torque and that is applied to a drive target driven by the motor. A command torque setting unit sets a command torque to be applied to the drive target. An addition angle correction unit compares the command torque set by the command torque setting unit with the detected torque detected by the torque detection unit, and corrects the addition angle based on a comparison result.09-16-2010
20100211263LEARNING CONTROLLER FOR THE COMPENSATION OF TORQUE PULSATIONS IN A STEERING ASSEMBLY - A control device for controlling an electric steering assembly is provided to reduce torque pulsations in the steering assembly. The control device comprises a learning control device for the suppression of periodic disturbances in a steering assembly. The learning control device is referred to as POISON (periodic on-line iterative signal optimum navigation) controller. By iterative learning of a corrected reference signal the POISON controller is able to compensate for control errors which occur in conventional closed loop control systems. The POISON controller is capable of permanent online operation. Therefore it is able to compensate for certain changes in the controlled system. The POISON controller can easily be added to existing power steering control loops.08-19-2010
20100222967Multiturn rotational sensor - A rotational sensing system is disclosed that includes a first sensing device including a first portion fixed to a body to rotate therewith in unison and provide a plurality of first device signals, a second sensing device including a second portion mechanically coupled to the body to rotate with a mechanical turn ratio relative to the body and provide a plurality of second device signals, and signal processing circuitry responsive to the first device signals to represent rotation of the first portion relative to the body with a virtual turn ratio different than unity and the mechanical turn ratio. This signal processing circuitry also includes logic operable to provide an output representative of rotational position of the body over an angular range spanning more than 360° as a function of the first device signals and the second device signals based on the virtual turn ratio.09-02-2010
20100222965VEHICLE DRIVING OPERATION SUPPORT APPARATUS/METHOD AND VEHICLE - A motor vehicle includes a vehicle driving operation support system. The vehicle driving operation support system senses an environment surrounding the motor vehicle; senses a traveling condition of the motor vehicle; calculates a risk potential of the motor vehicle on a basis of the sensed environment and the sensed traveling condition; controls the motor vehicle on a basis of a control setpoint. The vehicle driving operation support system sets on a basis of the calculated risk potential the control setpoint to a provisional setpoint effective for reducing the risk potential; senses driver's operation in reaction to the controlling operation with the control setpoint set to the provisional setpoint; and sets the control setpoint to a normal setpoint on a basis of the sensed driver's operation.09-02-2010
20100222964Method for Controlling the Steering Angle of the Vehicle Guiding Wheels - The invention relates to a method for controlling the steering angle β of the guiding wheels of a vehicle (09-02-2010
20100211265PARKING ASSIST APPARATUS - A parking assist apparatus (08-19-2010
20100211266ELECTRIC POWER STEERING APPARATUS - In an electric power steering apparatus including a charge-discharge circuit 08-19-2010
20100211262ELECTRIC POWER STEERING DEVICE - An object of the present invention is to provide an electric power steering device which reduces the variation of viscous feeling due to the change of steering velocity and presents better steering feeling than conventional power steering devices. A basic assist torque Tab and the like are calculated; filter parameters such as time constant T08-19-2010
20100211264DEVICE AND METHOD FOR CONTROLLING A STEERING SYSTEM IN A VEHICLE - A method for controlling a vehicle steering system having a plurality of subsystems that generate steering requests for the steering system comprising the steps of receiving a plurality of steering requests at an electronic control unit, receiving a plurality of vehicle parameter signals at the electronic control unit, the vehicle parameter signals being representative of a driving situation for each subsystem in the plurality of subsystems, setting an order of priority for application of the steering requests by the electronic control unit as a function of the driving situation for each subsystem, and controlling the application of the steering requests to the vehicle steering system in the set order of priority and within a predetermined overall torque limit.08-19-2010
20090287374METHOD AND SYSTEM FOR EVALUATING DRIVING CONDITIONS OF A VEHICLE - The method and system evaluate driving conditions of a vehicle whereby drivability of the vehicle can be evaluated accurately and objectively. To evaluate drivability of the vehicle under different driving conditions, a plural pieces of driving load information including biological information on a driver and movement information of the vehicle being driven are measured. Then, a group of weighting coefficients as many as or fewer than pieces of the driving load information is selected from groups of weighting coefficients that are set according to representative values of the driving load information in order to use a weighted linear sum of the representative values of the driving load information as an index of an integrated evaluation of the drivability of the vehicle. Subsequently, a weighted linear sum is obtained using the selected group of weighting coefficients and used to perform the integrated evaluation of the drivability under various driving conditions.11-19-2009
20090319127MOTOR VEHICLE DRIVER ASSISTING METHOD NEAR THE STABILITY LIMIT - A method for assisting a driver of a motor vehicle is provided that includes, but is not limited to monitoring at least one quantity selected among vehicle sideslip, yaw rate error, understeer and quantities correlated to vehicle sideslip, yaw rate error or understeer, deciding that there is a risk of the vehicle becoming unstable if any of the monitored quantities or a quantity derived from one or more of the monitored quantities exceeds a predetermined first threshold, and if it is decided that there is a risk, issuing a warning signal.12-24-2009
20090319126DRIVING SUPPORT DEVICE AND DRIVING SUPPORT METHOD - A target vehicle speed for traveling a predetermined road section ahead of a host vehicle is obtained, and an acceleration gear ratio, which is a gear ratio for accelerating the host vehicle to a vehicle speed faster than the target vehicle speed after traveling through the predetermined road section, is also obtained. If a driving support control settings indicates that execution of a gear ratio control is permitted, a gear ratio of the host vehicle is set to the acceleration gear ratio before the host vehicle reaches a start point of the predetermined road section. If the driving support control settings indicate that execution of a deceleration control using the brake portion is permitted, a braking portion is controlled so as to decelerate a vehicle speed of the host vehicle to the target vehicle speed before the host vehicle reaches the start point of the predetermined road section.12-24-2009
20090319125Self Powered Steering Wheel Angle Sensor - A steering wheel angle detection system having a steering wheel angle sensor, a generator and a controller memory such that when a vehicle ignition is powered off, movement of a steering wheel generates electricity and allows a steering wheel angle sensor to detect the change in steering wheel angle. The change, or an indicator, is stored in non-volatile RAM until a time in which the ignition is powered-on. The generator may be a generator dedicated to the steering wheel angle sensor or it may be an electric motor that is part of an electrically assisted power steering system.12-24-2009
20080281490METHODS, SYSTEMS, AND COMPUTER PROGRAM PRODUCTS FOR STEERING TRAVEL LIMIT DETERMINATION FOR ELECTRIC POWER STEERING - Methods, systems, and computer program products for steering travel limit determination for electric power steering. Exemplary embodiments include a method, computer program product and system incorporating the method, for implementing steering travel limit determination for electric power steering, including measuring end of travel positions of a handwheel of a vehicle, recording the end of travel positions, comparing the end of travel positions with current travel limit values and recording new travel limits with respect to the end of travel positions.11-13-2008
20090112403SYSTEM AND METHOD FOR DETERMINING AN ABSOLUTE ROTATIONAL POSITION OF A VEHICLE HANDWHEEL - A system and a method for determining an absolute rotational position of the vehicle handwheel are provided. In one exemplary embodiment, a method includes monitoring an amount of torque applied to the vehicle handwheel. The method further includes monitoring a rotational speed of the vehicle handwheel. The method further includes setting an absolute position value indicating the absolute position of the vehicle handwheel equal to a predetermined steering travel limit of the vehicle handwheel when both the amount of torque applied to the vehicle handwheel is greater than or equal to a threshold torque level, and the rotational speed of the vehicle handwheel is less than or equal to a threshold rotational speed. The method further includes storing the absolute rotational position value in a memory device.04-30-2009
20110040446STEERING CONTROL DEVICE - A steering control device for a vehicle includes a steering characteristic setting unit setting the range of a steering manipulation angle corresponding to a tire angle in a predetermined range (near an induction target tire angle for guiding to a target locus), which is determined on the basis of the target locus upon vehicle traveling, to be wider than the range of a steering manipulation angle corresponding to a tire angle outside of the predetermined range. A reduction gear ratio of a steering mechanism in the predetermined range increases.02-17-2011
20100299026ELECTRIC STEERING SYSTEM FOR RAPIDLY INCREASING DAMPER GAIN AFTER STEERING SPEED EXCEEDS A SPECIFIC VALUE - An electric steering system includes a steering torque measuring device for measuring a steering torque input into a steering system, a steering speed measuring device for measuring a steering speed of the steering system; a target current computing section for computing a target current based on the steering torque measured by the steering torque measuring device, and a control section for applying a steering power to the steering system by driving a motor according to the target current. When the measured steering speed is less than a predetermined speed value, the control section applies damping to the steering system based on the measured steering speed and when it is not the control section performs a control operation of adding a specified steering torque defined when the steering speed is equal to the predetermined speed value and an increment for the steering torque determined in accordance with the steering speed to each other, defining the sum of the addition as a target steering torque, and controlling the target current so that the measured steering torque coincides with the target steering torque.11-25-2010
20080243338Motor-Driven Power Steering Apparatus - A motor-driven power steering apparatus is provided with a sub control system including a map memory means storing a first window time setting map M10-02-2008
20090105908Apparatus and Method for Controlling Vehicle Motion - An apparatus and method for controlling a steering command of a vehicle is provided. A deadband value based on a current state of a transporter is applied to a roll compensated steering command to control steering of the vehicle. A gain is applied to a steering command to control steering of the vehicle.04-23-2009
20090105907STEERING SYSTEM - There is provided a steering system allowing a comfortable steering operation even if a driver quickly turns a steering wheel when a transfer ratio is quickened in a low vehicle speed range. In the steering system that changes the transfer ratio of a steering angle of the steering wheel to a turning angle of a turning wheel by a variable transfer ratio mechanism and generates auxiliary power by an electric power steering unit, a variable transfer ratio mechanism controlling ECU has a switching section for switching a transfer ratio modulating mode of setting a rotational angle of a transfer ratio variable motor used in the variable transfer ratio mechanism so that the transfer ratio is set at a target transfer ratio corresponding to vehicle speed with a steering torque modulating mode of reducing an electric current for driving the motor so as to reduce steering power of the steering wheel.04-23-2009
20130131925VEHICLE BEHAVIOR CONTROL APPARATUS - A vehicle behavior control apparatus disposed in a subject vehicle performs a steering angle control of the subject vehicle. The apparatus acquires lead vehicle information transmitted from a lead vehicle to determine a virtual shape of a road (i.e., a virtual road shape) based on a travel locus of the lead vehicle. A virtual road border distance is calculated as a distance from the subject vehicle to a road border of a virtual curve road positioned straight in front of the subject vehicle. The apparatus, calculates an appropriate turn radius for travel along the virtual curve road and, based on the appropriate turn radius, calculates an appropriate distance from the subject vehicle to the virtual road border positioned in front of the subject vehicle. A steering unit then controls a steering angle of the subject vehicle by maintaining the virtual road border distance with the appropriate distance.05-23-2013
20110112724MOTOR CONTROL UNIT AND VEHICLE STEERING SYSTEM - A motor control unit includes a detected steering torque correction unit that corrects the detected steering torque that is detected by a torque sensor and then subjected to a limitation process by a steering torque limiter. When the absolute value of the detected steering torque is equal to or smaller than a predetermined value, the detected steering torque correction unit corrects the detected steering torque to 0. When the absolute value of the detected steering torque is larger than the predetermined value, the detected steering torque correction unit outputs the detected steering torque without correction. A PI control unit calculates the addition angle based on the deviation of the control torque obtained through correction by the detected steering torque correction unit from the command steering torque.05-12-2011
20130138296VEHICLE STEERING SYSTEM - An acceleration sensor is attached to a rack housing. A FFT processing unit converts a signal output from the acceleration sensor, which is a time-domain signal, into a frequency-domain signal. An inverse input vibration component extraction unit extracts a signal, of which the frequency (f) falls within a predetermined range (fL≦f≦fH (fH>fL)) and of which the power density (ρ) falls within a predetermined range (ρL≦ρ≦ρH (ρH>ρL)), from the frequency-domain signal obtained by the FFT processing unit. An IFFT processing unit converts the frequency-domain signal extracted by the inverse input vibration component extraction unit into a time-domain signal (estimated inverse input vibration).05-30-2013
20130138297HYDRAULIC POWER STEERING SYSTEM - A damping control unit sets a damping torque command value that corresponds to a steering angular velocity when a direction of a detected steering torque is a turning direction, a magnitude of the detected steering torque is larger than or equal to a first threshold, a direction of the steering angular velocity is a returning direction and a magnitude of the steering angular velocity is higher than or equal to a second threshold. An addition unit adds the damping torque command value generated by the damping control unit to a basic assist torque command value set by a basic assist torque command value setting unit.05-30-2013
20110029199STEERING CONTROL DEVICE AND STEERING CONTROL METHOD FOR WORKING VEHICLE - A stationary steering operation determination means determines whether or not stationary steering operation is being performed repeatedly at a determination cycle period that is set to be longer than a cycle period at which a certain signal is detected. And a stationary steering operation determination means makes a decision as to whether or not stationary steering operation is being performed, on the basis of vehicle speed as detected by a vehicle speed detection means and steering angle as detected by a steering angle detection means. If it has been determined that stationary steering operation is being performed, a steering sensitivity alteration means decreases the steering sensitivity by reducing a pilot pressure or the like. And a notification means notifies the operator that stationary steering operation is being performed.02-03-2011
20110004376METHOD AND DEVICE FOR THE LATERAL CONTROL OF A TAXIING AIRCRAFT - The invention relates to a device (01-06-2011
20100185364RASTER-BASED CONTOUR SWATHING FOR GUIDANCE AND VARIABLE-RATE CHEMICAL APPLICATION - A raster-based system for GNSS guidance includes a vehicle-mounted GNSS antenna and receiver. A processor provides guidance and/or autosteering commands based on GNSS-defined pixels forming a grid representing an area to be treated, such as a field. Specific guidance and chemical application methods are provided based on the pixel-defined treatment areas and preprogrammed chemical application prescription maps, which can include variable chemical application rates and dynamic control of the individual nozzles of a sprayer.07-22-2010
20110130924STEERING WHEEL INPUT/INTERACTIVE SURFACE - The steering wheel input is a flexible, interactive input, based on a touch-sensitive surface. Groups of functions are available from many positions of hands and fingers, gripping and controlling the steering wheel. For example travel directions indicators, headlight flashing/dipping and windscreen wipers can be controlled without having to raise the hand from the steering wheel. The keypad of a mobile telephone can also be simulated. PDA inputs can be carried out. A computer keyboard can be simulated Continuous encompassment of the hands is corrected by computer. The touch areas are continuously and dynamically adapted in the relationship thereof with respect to the balls of the hands or the thumb and fingers. This concept produces ergonomically appropriate and dynamically updated touch areas.06-02-2011
20110035107ELECTRIC POWER STEERING APPARATUS AND CONTROL METHOD THEREFOR - An electric power steering apparatus comprises a charge-discharge circuit capable of configuring a circuit for charging an auxiliary power supply and a circuit for discharging a battery and the auxiliary power supply as well as configuring a discharge-preference circuit which enables only the discharge of the auxiliary power supply while avoiding the charge thereof. In the apparatus, a control circuit performs a power latch operation of carrying on control till the end of a predetermined period of time following an operation of turning off an ignition key, and also causes the charge-discharge circuit to configure the discharge-preference circuit thereby enabling steering assist accompanied by the discharge of the auxiliary power supply.02-10-2011
20110035106Method for setting an actuator that influences the driving dynamics of a vehicle - In a method for setting an actuator that influences the driving dynamics of a vehicle as a function of signals of a surround sensor system, the lateral distance of the vehicle from another vehicle is determined, and in case a minimum lateral distance is undershot, the actuator in the vehicle is actuated for the generation of a yawing moment.02-10-2011
20110040447VEHICLE DRIVEABILITY CONTROL SYSTEM - In a vehicle driveability control system for determining a control variable that is applied to a vehicle for a given control input including a front wheel steering angle according to a response of a vehicle model (02-17-2011
20110040448Steering apparatus - There is provided a steering apparatus including a pinion communicating with an operation of a steering member, a rack shaft having a rack meshed with the pinion, and a support yoke resiliently coming into contact with the rack shaft, and being configured to convert rotation of the pinion into movement of the rack shaft in an axial direction in a meshing portion in which the pinion and rack mesh to each other. The steering apparatus comprises a detection unit for detecting a force applied to the support yoke to which a force acting on the meshing portion being transmitted from the rack shaft and a calculation unit for calculating a steering torque applied to the steering member based on the force detected by the detection unit, wherein the pinion and the rack are formed in helical gears.02-17-2011
20110118939DRIVING ASSISTANCE APPARATUS AND DRIVING ASSISTANCE METHOD - Traveling environment information, which is information on a traveling environment around a vehicle, is obtained. If the automation level of the vehicle, which is set according to the traveling environment information, is decreased, the driving assistance level is decreased in a stepwise manner to execute a driving assistance control.05-19-2011
20110046849METHOD FOR CONTROLLING THE SIDE SLIP ANGLE OF A REAR-WHEEL DRIVE VEHICLE WHEN TURNING - A method for controlling the side slip angle of a rear-wheel drive vehicle when turning; the control method provides for the steps of: detecting the position of an accelerator control which is displaced along a predetermined stroke; using a first initial part of the stroke of the accelerator control for directly controlling the generation of the drive torque so that the generated drive torque depends on the position of the accelerator control; and using a second final part of the stroke of the accelerator control to directly control a side slip angle of the vehicle when turning so that the side slip angle depends on the position of the accelerator control.02-24-2011
20090062987AUTOMATIC CONTROLLING SYSTEM FOR MAINTAINING SAFELY THE RUNNING RANGE IN THE CAR AND METHOD THEREOF - Disclosed is an automatic control system and method for keeping a car at a safe distance in traffic from an obstacle or other car. The inventive automatic control system comprises: a sensing device 03-05-2009
20110246027IMAGE PROCESSING SYSTEM AND VEHICLE CONTROL SYSTEM - An image processing system inputs a captured image of a scene viewed from a vehicle in a predetermined road section and an image-capturing position at which the image is captured. The system uses a given position in the predetermined road section as a specific position, and sets a target vehicle movement amount at the specific position, for passing through the predetermined road section. The system generates reference image data from the captured image obtained at the specific position. The system generates reference data that is used when scenic image recognition is performed, by associating the reference image data with the specific position and the target vehicle movement amount at the specific position, and generates a reference data database that is a database of the reference data.10-06-2011
20090312910Method and Vehicle Electric System for a Motor Vehicle With a Pre-Emptive Temporary Load Reduction of the Vehicle Electric System - A method is provided for reducing the energy consumption of a motor vehicle having at least one vehicle electric system, to which at least a first electric consumer is connected. In order to achieve an efficient vehicle electric system, which, in addition, contributes to a reduced energy consumption of a motor vehicle, in a first operating mode of the motor vehicle, the level of the electric load on the vehicle electric system without at least the first consumer is at a first level. In a second operating mode of the motor vehicle, the level of the electric load on the vehicle electric system without at least the first consumer is decreased temporarily to a second level that is lower than the first level. A device, which is intended for detecting the driving situation and is provided in the vehicle, recognizes an imminent specific driving situation on the basis of the previous behavior of the driver in controlling the vehicle and/or the behavior of the vehicle in advance and initiates a temporary switch in the level of the electric load on the vehicle electric system to the second lower level.12-17-2009
20100114433Control System for Controlling a Motor Arrangement for Differentially Driving Left and Right Wheels of a Motorized Vehicle - A control system for controlling a motor arrangement for differentially driving left and right wheels of a motorized vehicle, the control system comprising: a comparator for receiving yaw rate sensor signals from a yaw rate sensor attached to the vehicle, the yaw rate sensor signals being indicative of actual yaw rates of the vehicle and for receiving yaw rate reference signals generated by a user input device, the yaw rate reference signals being indicative of user demanded yaw rates for the vehicle, the comparator arranged to output yaw rate error signals based on the difference between the yaw rate sensor signals and the yaw rate reference signals; a control loop for processing the yaw rate error signals to generate yaw rate correction signals for controlling the motor arrangement to reduce the yaw rate error signals, wherein the control loop comprises a variable limiter for limiting the yaw rate correction signals to values within a variable limit, the variable limit varying in dependence upon the yaw rate error signals.05-06-2010
20090198414Operator interface for controlling a vehicle - An operator interface for controlling a vehicle includes a first operator control input device configured to generate a first signal indicative of a desired steering of the vehicle, and a second signal. The operator interface also includes a second operator control input device configured to generate a third signal. The second signal and the third signal are indicative of a desired vehicle speed.08-06-2009
20090312909VEHICLE STEERING SYSTEM AND METHOD OF CONTROLLING THE SAME - An electronic control unit (12-17-2009
20090216405STEERING ASSIST SYSTEM - A steering assist system includes traffic-line detecting means for detecting right and left traffic lines marked on a road, preceding-vehicle detecting means for detecting a preceding vehicle traveling ahead of a subject vehicle, traveling-target-point setting means for setting a traveling target point for traveling of the subject vehicle at a predetermined position in the preceding vehicle when the preceding vehicle is not within predetermined ranges from the right and left traffic lines, and for setting the traveling target point at a position offset from the predetermined position in the preceding vehicle toward the center of a traveling lane of the subject vehicle when the preceding vehicle is within the predetermined range of any one of the right and left traffic lines, and steering control means for controlling steering so that the subject vehicle passes over the traveling target point.08-27-2009
20090216404Driver Assistance System - A driver assistance system having a lane-keeping function, having a device for detecting the lanes on a roadway, and a control unit for intervening in the steering system of the vehicle for lane-keeping. Means are provided in the driver assistance system for detecting the position of the vehicle with respect to the lane marking of the lane. Furthermore, means are provided for detecting a travel of the vehicle through a curve. The control unit executes its control function as a function of the position of the vehicle on the lane and as a function of the cornering. The intervention depends on whether the vehicle is located on the inner side of the curve or on the outer side of the curve.08-27-2009
20120035809VEHICLE - To provide a vehicle capable of maintaining a stable state when a rider gets on the step plate or get off the step plate. A vehicle is a vehicle that performs a turning movement based on the rotation of step plates on which a rider rides in the left/right direction. The vehicle includes restriction means to enable the rotation of the step plates in the left/right direction to be restricted. The vehicle preferably further includes first control means that controls the restriction means so that the rotation of the step plates in the left/right direction is restricted when the rider gets on the step plates or gets off the step plates.02-09-2012
20100070137STEERING SYSTEM - An object of the present invention is to provide a steering system which does not cause the driver to feel the steering reactive force shock when the operation of the steering wheel is stopped, and which enables the driver to operate the steering wheel comfortably. In order to achieve the above object, there is provided a steering system in which a transfer ratio of a steering angle of a steering wheel to a turning angle of a turning wheel is changed by a variable transfer ratio mechanism, and an auxiliary power is generated during steering by an electric power steering, including: a transfer ratio variable motor for changing the transfer ratio, in which a steering angular velocity of the steering wheel is calculated, and when an absolute value of the steering angular velocity becomes equal to or less than a predetermined value, a current value flowing through the transfer ratio variable motor is set to zero.03-18-2010
20110178680VEHICLE CONTROL DEVICE AND VEHICLE CONTROL METHOD - A vehicle control device (07-21-2011
20110178679METHOD FOR OPERATING A CONTROL SYSTEM OF A MOTORCYCLE - The invention relates to a method for operating a control system (07-21-2011
20110153159MAGNETIC ASSISTED POWER STEERING SYSTEM - A power steering system for a motor vehicle includes a rack and pinion assembly in which the teeth of the pinion are engaged with the teeth of the rack. The power steering system further includes magnets (e.g., permanent magnets or electromagnets) connected to the rack, as well as magnets (e.g., permanent magnets or electromagnets) connected to a rack tube. A varying maglev (i.e., magnetic levitation) force obtained by controlling current flowing through at least some of the magnets (e.g., by varying duty cycle of pulse-width-modulation through an electronic control unit) provides steering assistance for the motor vehicle employing the power steering system. A power steering system includes first and second steering elements, magnets connected to the steering elements, and a controller configured to obtain speed information and steering position information and to control the activation of the magnets in response to the speed information and steering position information.06-23-2011
20100070136Method of controlling a vehicle steering apparatus - A method for controlling a steering apparatus (03-18-2010
20110082623SYSTEM FOR VEHICLE CONTROL TO MITIGATE INTERSECTION COLLISIONS AND METHOD OF USING THE SAME - A control system and method to mitigate intersection crashes is disclosed. In one embodiment, the system includes an electronic control module equipped with memory and in communication with at least one radar sensor system, at lest one environmental sensor system, at least one vehicle stability system, an operator advisory system, a brake control system, a controllable steering system, and a powertrain control system. In one embodiment, the method may include determining whether a vehicle is entering an intersection, determining whether the operator is responding correctly to the sensed conditions in the intersection, activating the controlled brakes, determining any intersection threat, determining whether any sensed threat is imminent, activating the accident mitigation adviser, reducing engine torque while in the intersection, and actuating steering and brake control systems while in the intersection.04-07-2011
20110098887ELECTRIC POWER STEERING DEVICE - An Assist Control Unit 04-28-2011
20110098888MOTOR CONTROL DEVICE AND VEHICLE-STEERING DEVICE COMPRISING SAME - A motor controller controls a motor including a rotor and a stator opposed to the rotor. The motor controller includes an electric current driving unit which drives the motor with an axis electric current value defined in a rotating coordinate system defined with respect to a control angle that is a rotation angle for control, a control angle computing unit which computes a current value of the control angle by adding an addition angle to a previous value of the control angle in each predetermined computing cycle, and an addition angle computing unit which computes the addition angle according to a torque to be generated by the motor or a response of the motor to the axis electric current value.04-28-2011
20110087406METHOD FOR ASSISTING A DRIVER OF A VEHICLE WHEN PARKING IN A PARKING SPACE - A method for assisting a driver of a vehicle (04-14-2011
20110082624VEHICLE DRIVE CONTROL APPARATUS - In a vehicle drive control apparatus, a behavior determination unit determines whether a vehicle behavior is in a stable state or an unstable state based on a vehicle turning behavior. An engine stop control unit avoids stopping the engine as automatic stop conditions are not satisfied when the vehicle behavior is determined to be in an unstable state during operation of the engine. When the vehicle behavior is in a stable state and other automatic stop conditions are satisfied during operation of the engine, the engine stop control unit stops the engine. During stability control performed by a stability ECU, the engine stop control unit avoids stopping the engine as the automatic stop conditions are not satisfied.04-07-2011
20110153161CORNER UNIT GUIDANCE CONTROL SYSTEM USING TWO ANTENNAS - A corner unit guidance control system for use with a corner unit that is part of a center pivot irrigation system includes a primary antenna, a secondary antenna, a receiver, and a controller. The primary antenna and the secondary antenna may receive signals from at least one external positional information source. The receiver may be in communication with the antennas and operable to process the signals to produce position data corresponding to a current position of a wheel and altitude data about the height of the antennas. The controller may be in communication with the receiver and may be programmed to steer the wheel to a heading corresponding to a difference between the current position of the wheel and a point along the path and further programmed to calculate a tilt angle from the altitude data and adjust the heading based on the tilt angle.06-23-2011
20110153160STEERING WHEEL ASSEMBLY FOR A MOTOR VEHICLE - A steering wheel assembly for a motor vehicle is provided. The steering wheel assembly having a steering wheel for steering the motor vehicle, at least one vehicle component that is to be arranged at the steering wheel, and an electronic control unit for processing information and for controlling the at least one vehicle component. The electronic control unit is arranged in the steering wheel.06-23-2011
20110077823STEERING CONTROL DEVICE FOR A VEHICLE - A steering control device for a vehicle independently performs a steering control of front wheels and rear wheels. A phase control unit performs a control of a steering control unit so as to control a phase difference between a yaw rate and a lateral acceleration at a predetermined position in a vehicle interior. Additionally, a setting unit sets the predetermined position based on a riding position condition of passengers in the vehicle interior. Therefore, it is possible to appropriately control the phase difference between the yaw rate and the lateral acceleration at the predetermined position in the vehicle interior. So, it becomes possible to appropriately ensure a comfort (ride quality) of the passenger at the predetermined position.03-31-2011
20120303218ELECTRIC STEERING DEVICE - An electric steering device is provided which enables a stable steering correction operation expected by a driver. An electric power steering device having a motor, which is controlled by a control device based on steering torque and generates steering assist force, further includes operation switches which are provided at a steering wheel and which output electric signals based on an operation given by a driver, and an additional current computing unit that calculates and outputs an additional current value waveform for adding a current for driving the motor in accordance with the electric signals from the operation switches. The additional current computing unit generates and outputs the current waveform of a predetermined additional current value in accordance with the driving condition information on a vehicle in response to an operation to the operation switch regardless of the time length of the ON state of the operation switches.11-29-2012
20110060504METHOD AND A SYSTEM FOR OPERATING A WORKING MACHINE - A method and a system for operating a working machine provided with a hydraulic system and an operator control adapted to command actuation of the hydraulic system is provided. The system includes a first control unit and a second control unit for moving an implement on the working machine and/or for steering the working machine. The method includes receiving first information regarding a status of the operator control, and determining at least one hydraulic system control information based on the first information and sending the determined hydraulic system control information to a second control unit which is adapted to control the hydraulic system accordingly.03-10-2011
20110060503VEHICLE STEERING CONTROL DEVICE AND METHOD - A steering control device for imparting a steering reactive force to the steering wheel. The steering control device for fork lifts determines a command steering reactive force corresponding to the wheel angle from the wheel angle detected by a wheel angle sensor (03-10-2011
20110251758STEERING ASSIST DEVICE - A steering assist device capable of appropriately reducing a steering load on a driver is provided. A steering assist device for assisting a steering operation of a driver who drives a vehicle, comprises: an auxiliary torque generation section for causing a steering device of the vehicle to generate an auxiliary torque that assists a steering force of the driver; a first torque control section for controlling the auxiliary torque so as to cause the vehicle to perform turning in accordance with a curvature of a travel lane in which the vehicle travels; a second torque control section for controlling the auxiliary torque so as to bring the position of the vehicle close to a center line of the travel lane; a lane change determination section for determining whether or not the vehicle is performing lane change; and a control suppression section for suppressing the control of the auxiliary torque by the second torque control section when it is determined that the vehicle is performing lane change.10-13-2011
20110029200PULL DRIFT COMPENSATION USING ACTIVE FRONT STEERING SYSTEM - A method for correcting straight-ahead driving of a motor vehicle having an active front steering system comprising the steps of determining a straight-ahead driving condition of the motor vehicle, detecting pull or drift of the motor vehicle during the straight-ahead driving condition and adjusting the steering column using the active front steering system to compensate for detected pull or drift of the motor vehicle.02-03-2011
20110257843POWER STEERING APPARATUS - The power steering apparatus according to the invention is a power steering apparatus with a power steering function to drive an oil pump by a motor to generate hydraulic pressure, and to assist in driver's steering through the hydraulic pressure. The power steering apparatus includes a power source voltage detecting unit which detects the voltage of a power source of the power steering apparatus; a motor rotating speed detecting unit which detects the rotating speed of the motor; and a control stopping unit which stops the power steering function when the voltage of the power source detected by the power source voltage detecting unit exceeds a predetermined power source voltage value, and the rotating speed of the motor detected by the motor rotating speed detecting unit is equal to or less than a predetermined motor rotating speed value.10-20-2011
20100063681METHOD AND ARRANGEMENT FOR THE STEERING OF A VEHICLE - The invention relates to a method by which image data from the terrain lying in front of a vehicle (03-11-2010
20120203430ELECTRIC POWER STEERING SYSTEM - Electric power steering system comprises an electric motor (08-09-2012
20100004823VEHICLE STEERING CONTROL SYSTEM - A vehicle steering control system includes a variable transmission ratio device that rotates an output shaft relative to an input shaft so as to change the transmission ratio, and a locking device that is switched between a lock-on state in which the transmission ratio between the input shaft and the output shaft is inhibited from being changed and a lock-off state in which the transmission ratio between the input shaft and the output shaft is allowed to be changed. The variable transmission ratio device includes an electric motor and a speed reduction mechanism. The locking device inhibits the input shaft and a rotor of the electric motor from rotating relative to each other when placed in the lock-on state, and allows the input shaft and the rotor to rotate relative to each other when placed in the lock-off state.01-07-2010
20090240398APPARATUS FOR CHANGING A VEHICLE SPEED SETTING OF CRUISE CONTROL - A vehicle speed setting of cruise control is changed based on an operation by a driver. At this time, it is determined whether the vehicle is traveling in a passing lane or a traveling lane (S09-24-2009
20080243339STEERING SYSTEM - A steering system includes: an electric power steering device which includes a steering unit of front wheels having an electric motor for generating an auxiliary torque in accordance with at least a steering torque and for transmitting the auxiliary torque to the steering unit; toe angle changers for changing toe angles of rear wheels in accordance with at least a front wheel turning angle and a vehicle speed; and a steering controller for controlling the electric power steering device and the toe angle changer. The steering system further includes a toe angle changer anomaly detection unit and/or an electric power steering device anomaly detection unit, and when a toe angle changer abnormal state is detected, an auxiliary torque target value and/or a viscosity in the electric power steering device is controlled, and when an electric power steering device abnormal state is detected, the toe angle changer is controlled.10-02-2008
20110257845STEERING CONTROL APPARATUS FOR VEHICLE - A coordinate-control-gain calculation section 10-20-2011
20110257844MOTOR VEHICLE ELECTRIC POWER ASSISTED STEERING SYSTEM - The processing means, which control the power assisted steering motor (10-20-2011
20110257842POWER MANAGEMENT SYSTEM FOR A FORESTRY MACHINE - The disclosure relates to a power management system for a forestry machine. The power management system improves the efficiency of the machine by automating control of the hydraulic systems of the machine. A controller receives a signal from a cutting tool speed sensor and can control the operation of the various pumps and motors on the machine.10-20-2011
20120136538METHOD FOR OPERATING A MOTOR VEHICLE AND MOTOR VEHICLE - A method is provided for operating a motor vehicle traveling on a roadway. The method includes, but is not limited to determining data of the roadway in the area, which includes determining a number n of lanes. If it is determined that n≧2, it is determined whether a lane in which the vehicle is located with data of an optical camera of the motor vehicle. In addition, it is determined whether a second motor vehicle is traveling in the lane, in which the motor vehicle is located, in a direction of travel opposite a first direction of travel with a determination apparatus of the motor vehicle. If a second motor vehicle is determined, a warning message and/or automatic actuation is generated from an apparatus of the motor vehicle, (e.g, a braking apparatus, a drive apparatus, or a steering apparatus).05-31-2012
20110054739METHOD AND DEVICE FOR ASSISTING A DRIVER OF A VEHICLE IN EXITING FROM A PARKING SPACE - A method is described for assisting a driver of a vehicle (03-03-2011
20110054738SYSTEM FOR ENHANCING CORNERING PERFORMANCE OF A VEHICLE EQUIPPED WITH A STABILITY CONTROL SYSTEM - A system for controlling a vehicle having a brake assembly for exerting braking force on at least one wheel on the basis of a number of control parameters is provided. The system has a vehicle stability control system configured to generate the control parameters as a function of a control quantity associated with the intensity of the braking force to be exerted on the wheels; and a vehicle handling enhancement system configured to calculate, in the presence of cornering acceleration of the vehicle, a reference vehicle yaw rate on the basis of at least the longitudinal velocity of the vehicle and the steer angle of the vehicle, and to adjust the control quantity to zero the difference between the actual yaw rate and the reference vehicle yaw rate.03-03-2011
20110054737Stability-Based Steering Control Methods and Systems - A control system for controlling a steering system to maintain stability of the steering system is provided. The control system includes an operating conditions module that estimates at least one operating gain based on an operating condition of the steering system. A blend module estimates a blend value based on the at least one operating gain. A steering assist module generates a steering assist command based on the blend value.03-03-2011
20110264326STEERING APPARATUS - A secondary-control-system power supply line is provided to supply electricity from a secondary power supply apparatus to an electronic control apparatus. When a primary power supply voltage becomes equal to or lower than a primary power supply determination voltage, a power supply control section turns a step-down switching element on and off to thereby supply electricity from the secondary power supply apparatus to the electronic control apparatus. When a secondary power supply voltage becomes equal to or lower than a secondary power supply determination voltage, the power supply control section turns a secondary power supply relay off so as to stop the supply of electric power from the secondary power supply apparatus to a motor drive circuit, and continues the supply of electric power to the electronic control apparatus. Thus, resetting of a microcomputer of the electronic control apparatus, which would otherwise occur due to a drop in the power supply voltage, is prevented.10-27-2011
20110022270ELECTRIC POWER STEERING DEVICE AND METHOD FOR CONTROLLING THE SAME - A current command value computing section includes an integration control computing section. Based on an integration of the steering torque τ, the integration control computing section computes a steering torque integration control amount Iint*, which is a compensation component for increasing the assist force. The integration control computing section functions as a determining device that determines whether the vehicle is traveling forward in a straight line. When the determining device determines that the vehicle is traveling forward in a straight line, the integration control computing section outputs the steering torque integration control amount Iint* to an adder. The current command value computing section superimposes the steering torque integration control amount Iint* on a basic assist control amount Ias* computed by a basic assist control section, and outputs the obtained value, as a current command value Iq* corresponding to a target assist force, to an output section.01-27-2011
20110022268VEHICULAR STEERING CONTROL SYSTEM AND STEERING CONTROL METHOD - In a vehicle including a VGRS actuator capable of changing the steering transmission ratio by rotating an upper steering shaft and a lower steering shaft relative to each other, an ECU performs a lock releasing process when the VGRS motor is locked. In the process, an actual steering angle is calculated, and is compared with a lock release threshold value that is set in advance in view of the axial force applied to the lower steering shaft during steering. If the actual steering angle is equal to or smaller than the lock release threshold value, the ECU performs driving control of a lock mechanism so as to release the locked state of the VGRS motor.01-27-2011
20110046852POWER STEERING DEVICE - A power steering device includes an oil-hydraulic pump, an electric motor to drive the pump, an inverter, a control valve, a power cylinder to produce a steering assist, and a control unit to control the drive signal of the inverter. The control valve includes a pump port supplied with oil from the pump, a first and second cylinder ports connected to first and second cylinder chambers on sides of the piston, and a discharge port. Communication between the first cylinder port and the pump port and communication between the second cylinder port and the discharge port, and communication between the first cylinder port and the discharge port and communication between the second cylinder port and the pump port are established in steered status in the other direction. Communication among the pump port and first and second cylinder ports, and isolation of the discharge port from the pump port and first and second cylinder ports are established when the control valve is in neutral status.02-24-2011
20100292895DRIVING SUPPORT DEVICE - In a case where it is determined that a road surface marking exists within a specified range from a vehicle 11-18-2010
20100292896Control apparatus for electric power steering system - The control apparatus for an electric power steering system is designed to satisfy the first spec that a first relation characteristic between speed of the electric motor to generate steering assist force and the steering wheel torque is the same as a basic relation characteristic in which the electric motor is driven in accordance with a basic assist amount calculated on the basis of the measured steering torque not corrected by an assist compensation amount calculated depending on the operating state of the electric power steering system, and to satisfy the second spec that a second relation characteristic between speed of the electric motor and a road surface reaction force is such that speed of the electric motor is suppressed compared to a case where the electric motor is driven in accordance with the basic relation characteristic.11-18-2010
20110118938VEHICLE CONTROL SYSTEM - A vehicle control system having a controller and a spatial database adapted to provide spatial data to the controller at control speed. The spatial data provided from the spatial database to the controller can be any kind of data or information that has some relationship or association with “real world” geographical location, or if it is stored somehow with reference to geographical location. The spatial data received by the controller from the database forms at least part of the control inputs that the controller operates on to control the vehicle. The fact that the controller operates directly on information that is inherently associated with “real world” geographic location represents a change in thinking compared with existing vehicle control systems. In particular, it means that the control system of the present invention “thinks” directly in terms of spatial location. A vehicle control system in accordance with one particular embodiment of the invention comprises a task path generator, a spatial database, at least one external spatial data receiver, a vehicle attitude compensation module, a position error generator, a controller, and actuators to control the vehicle.05-19-2011
20110118937MOTOR CONTROL UNIT AND VEHICLE STEERING SYSTEM - When the estimated motor temperature becomes equal to or higher than the first predetermined temperature, an addition angle correction unit temporarily decreases the absolute value of the addition angle output from an addition angle limiter at time intervals. The addition angle correction unit makes the time interval shorter as the estimated motor temperature increases. When the time interval becomes equal to or shorter than the predetermined threshold, that is, when the estimated motor temperature becomes equal to or higher than the second predetermined temperature that is higher than the first predetermined temperature, the addition angle correction unit notifies a command current value changing unit of a current stop command. Thus, the γ-axis command current value is changed to 0, and therefore the steering mode is shifted to the manual steer mode.05-19-2011
20110125370DEVICE AND PROCESS FOR AUTOMATIC LOCKING OF A STEERING COLUMN - The invention relates to a device for locking (D) the steering column of a motorcycle (M), which includes a first module (05-26-2011
20110125369APPARATUS FOR KEEPING A TRAFFIC LANE AND PREVENTING LANE-DEVIATION FOR A VEHICLE AND METHOD THEREOF - The present invention relates to an apparatus for keeping a traffic lane and preventing lane-deviation for a vehicle that controls a steering direction and a steering amount so as for the vehicle to keep the traffic lane by using information on a left traffic lane of a vehicle while travelling and information on a curbstone provided at a right side of the vehicle and a method thereof.05-26-2011
20100324782VEHICLE CONFIGURATION FOR IMPROVING LOW SPEED MANEUVERABILITY - An apparatus to turn a vehicle in a low speed zero slip turning maneuver includes a vehicle body and a vehicle chassis including a plurality of wheels, wherein every wheel of the chassis is steerable, and an electric propulsion system. The apparatus also includes a low speed turning maneuver module monitoring a desired low speed zero slip turning maneuver, determining a desired instant center of rotation for the vehicle based upon the desired low speed zero slip turning maneuver, determining a wheel orientation for each of the wheels perpendicular to the desired instant center of rotation, and controlling each of the wheels according to the corresponding determined wheel orientation.12-23-2010
20100324783ELECTRIC POWER STEERING SYSTEM - A steering torque shift control amount calculation unit (12-23-2010
20100179727Steering device for vehicles - A steering device which includes coded microstructures which are provided on the steering shaft and/or on a device that is connected to the steering shaft in a non-positive manner; a sensor which detects the microstructures and outputs associated measuring signals; and an electronic circuit to which the measuring signals of the sensor are fed, and which outputs electronic signals to control the steering is disclosed.07-15-2010
20110004375METHOD AND DEVICE FOR ASSISTED PARKING OF A MOTOR VEHICLE - In a method and a device for assisted parking of a motor vehicle into a parking space or assisted pulling out of a motor vehicle from a parking space, a predetermined maximum speed is given for each parking phase of the single step or multiple step parking or pulling out action consisting of several parking phases, wherein when exceeding the predetermined speed during a parking phase a limitation of the speed of the motor vehicle to the maximum speed allowed for the parking phase is carried out.01-06-2011
20090171534Method for Active Actuation of a Servo Valve Assembly - A method for active actuation of a servo valve assembly in an electrohydraulic vehicle steering system includes the following method steps: 07-02-2009
20090171533Driving Assist System - A driving assist system assists steering such that a vehicle travels along a set target course. A steering torque sensor detects a steering torque that serves as a steering operation input value generated by a driver. If the steering torque value is equal to or greater than a preset reference value and a direction corresponding to the steering torque is a direction away from another vehicle present ahead in an adjacent lane, then an ECU corrects the target course to a course that moves away from the other vehicle.07-02-2009
20110137523Motor Driven Power Steering Device - A motor driven power steering device may include a motor drive unit equipped with a motor moving a rack so as to change steering angle, and a control unit detecting a moving direction of a steering wheel, operating the motor in accordance with the moving direction, and controlling the motor so as to vary the maximum stroke of the rack. The rack stroke may be increased in a predetermined control range of a wheel stroke and the rack stroke may be decreased out of a predetermined control range of a wheel stroke in such a manner that the gap between the wheel and the vehicle body is actively controlled. Further, a separate varying device for limiting the movement of the rack is not included such that the number of components and the manufacturing cost is reduced.06-09-2011
20100121530STEERING DEVICE - When the magnitude |ω| of a steering angular velocity ω is equal to or greater than a determination angular velocity ωth, an electric motor is estimated to be in a predetermined power use state, and a restriction determination threshold Vonth is set to a first voltage value V05-13-2010
20120310482PLANE TRACTOR - The invention relates to a plane tractor (12-06-2012
20120310481METHOD FOR OPERATING A DRIVER ASSISTANCE SYSTEM OF A MOTOR VEHICLE AND DRIVER ASSISTANCE SYSTEM FOR A MOTOR VEHICLE - A method for operating a driver assistance system of a motor vehicle wherein the driver assistance system is configured as a parking aid system is provided. The method includes determining a parameter characterizing an impending parking procedure of the motor vehicle in a longitudinal direction of the vehicle. A first distance d12-06-2012
20120310480METHOD FOR OPERATING A DRIVER ASSISTANCE SYSTEM OF A MOTOR VEHICLE AND DRIVER ASSISTANCE SYSTEM FOR A MOTOR VEHICLE - A method for operating a driver assistance system of a vehicle, wherein the system is configured for the automatic actuation of an element chosen from a braking device, a drive device, a steering device and a warning device, is provided. The method includes determining a first parameter characterizing a possible collision of the motor vehicle with an object situated in front of the vehicle in the direction of travel of the vehicle. A second parameter chosen from an instantaneous transverse acceleration, an instantaneous yaw rate, an instantaneous chronological alteration of the transverse acceleration, and an instantaneous chronological alteration of the yaw rate, all of the motor vehicle, is determined. If the second parameter does not exceed a predetermined threshold value, an automatic actuation takes place of the element and if the second parameter exceeds the predetermined threshold value, an automatic actuation of the element of the motor vehicle is omitted.12-06-2012
20110125368VEHICLE BEHAVIOR CONTROL APPARATUS - A vehicle behavior control apparatus including a deceleration control mechanism decelerating the vehicle to reduce a deviation between a target turning index value, which is determined based on a steering angle of the vehicle, and an actual turning index value. The deceleration control mechanism reduces the decrease gradient of the deceleration when a roll motion index value of the vehicle exceeds a threshold roll motion index value.05-26-2011
20100082204INVERTED PENDULUM TYPE MOVING MECHANISM - An inverted pendulum type moving mechanism, enabling to detect a single-wheel idling when it occurs therein, thereby to maintain a standing condition even in case where an idling maintenance time is long, comprises: left and right wheels; a moving mechanism having traveling motors, which rotationally drive those wheels; an upper body, which is supported on the moving mechanism; and a control apparatus, which controls the moving mechanism, wherein the control apparatus comprises an idling detector unit for the wheels and a traction return detector unit, and executes a double-wheels standing travel control when no idling is detected within the idling detector unit, or a loading-wheel standing control when the idling is detected within the idling detector unit, and further the control apparatus executes an idling wheel control is executed upon the idling wheel for urging traction return, and turns back to the loading-wheel standing control when no traction return is detected within the traction return detector unit, and returns to the double-wheels standing travel control when traction return is detected within the traction return detector unit, and thereby executing an idling treatment control.04-01-2010
20100036563Apparatus for travel support - A travel support apparatus sets a travel locus of a vehicle based on a gaze point of a driver of the vehicle. By utilizing the gaze point, the travel locus is calculated and set for the travel control of the vehicle, especially for a curved portion of a road, in a matching manner that the calculated travel locus approximates the travel locus created by the steering operation of the driver. The above locus calculation scheme generates a natural travel locus because the driver of the vehicle usually gazes at an exit of the curved portion of the road when he/she steers the vehicle on the road. The natural travel locus calculated and set by the travel support apparatus prevents the driver from having discomfort and/or unsafe feeling while the travel of the vehicle is controlled by the apparatus.02-11-2010
20110190984IMPROVEMENTS RELATING TO STEERING SYSTEMS - A method of monitoring the condition of a steering system comprises the steps of repeatedly measuring the angular position of a steering wheel, identifying from the measurements of steering wheel position a first moment in time at which the steering wheel comes to rest in an off centre position following movement in a first direction away from a straight ahead position, measuring the torque applied to the steering system at that first moment in time, identifying from the measurements of steering wheel position a second moment in time at which the steering wheel first starts to moves away from the off centre position in the opposite direction to the first direction, measuring the torque applied to the steering system at that second moment in time, calculating the difference between the measured torques at the first moment of time and second moment of time to provide a static friction value and comparing the calculated static friction value with a target static friction value to provide an indication of the condition of the steering system.08-04-2011
20090292420METHOD OF REDUCING CURRENT CONSUMPTION OF ELECTRIC HYDRAULIC POWER STEERING SYSTEM FOR VEHICLE - A method of reducing current consumption of an electric hydraulic power steering system for a vehicle includes determining whether or not a steering wheel is manipulated after an engine is started, and activating a sleep mode if it is determined that the steering wheel is not manipulated and if a vehicle speed is lower than a reference value for activating the sleep mode, or if it is determined that the steering wheel is manipulated and if an amount of current conducted in a motor, a vehicle speed and a steering angular velocity are lower than respective reference values for a predetermined time. According to the method, it is possible to reduce current consumption when the steering wheel is not manipulated and improve the vehicular fuel efficiency.11-26-2009
20120209473ELECTRIC POWER STEERING CONTROL METHODS AND SYSTEMS - A control system for controlling a steering system is provided. The control system includes a first module that determines a hysteresis position based on handwheel velocity and handwheel torque. A second module selectively determines an assist curve based on the hysteresis position. A third module generates a final assist command based on the assist curve.08-16-2012
20110190986WORKING FLUID MEDIUM TEMPERATURE CONTROL SYSTEM AND METHOD - A working fluid medium temperature control system comprises an actuator operable on a working fluid medium, a pump for the working fluid medium, a fluid passage structure for the working fluid medium, an electric motor drivingly connected to the pump, and a control unit for the electric motor, the control unit including an inverter and an inverter controller. The inverter and the electric motor are integrated in such a way that the inverter is in heat transfer communication with the electric motor. The fluid passage structure is in heat transfer communication with the inverter.08-04-2011
20110190985METHOD AND SYSTEM FOR ESTIMATING A CORNERING LIMIT OF AN AUTOMOTIVE VEHICLE AND A COMPUTER PROGRAM PRODUCT FOR CARRYING OUT SAID METHOD - A method and a system are provided for estimating a cornering limit of an automotive vehicle and a computer program product with a computer method code for carrying out the method. The method includes, but is not limited to sensing vehicle operating conditions and a vehicular yaw rate {dot over (Ψ)}; detecting a lateral acceleration a08-04-2011
20110190983METHOD AND DEVICE FOR CONTROLLING A BLOCKING MEMBER - The invention relates to a method for controlling a blocking member (08-04-2011
20110190982POWER ON DEMAND STEERING WHEEL ANGLE SENSOR - A power on-demand steering angle sensor coupled to a steering wheel and a controller comprising a switch, coupled to the sensor and the controller. The switch is activated upon motion of the steering wheel or steering shaft. The switch, when closed, connects a power supply, such as a vehicle battery, to the sensor and the controller so that a new steering angle may be sensed and stored. After a predetermined period of time, the controller sends a signal to open the switch and disconnect the power supply.08-04-2011
20110264329DRIVING SUPPORT APPARATUS OF VEHICLE - A vehicle is provided with: an EPS a VGRS actuator as a rudder angle varying device; and an EPS actuator as a steering torque assisting device. In following a target driving route, a LKA target assist torque TLK is outputted from the EPS actuator on the basis of target lateral acceleration GYTG. On the other hand, in order to suppress the steering of a steering wheel by the assist torque, which is against a driver's will, steered wheels are steered by the VGRS actuator, excessively by a LKA correction target angle θLK. At this time, it does not influence a relation between a steering angle and the rotation angle of a lower steering shaft. Thus, the following for the target driving route is realized without reducing the robustness of the vehicle with respect to the driver's steering.10-27-2011
20100030426COLLISION AVOIDANCE DEVICE - A collision avoidance ECU estimates a traveling locus based on an estimated curve radius of an own vehicle in a basic traveling locus estimating unit, and in a changed traveling locus estimating unit, obtains separation distances between an own vehicle and white lines based on the relative positional relationship between an own vehicle and the white lines, and estimates, as a changed traveling locus, a route along the white lines with the obtained separation distances maintained. In a collision judging unit, when auto-steering control and departure warning control are not performed, collision judgment is performed based on the basic traveling locus estimated in the basic traveling locus estimating unit, and when the auto-steering control and departure warning control are performed, the traveling locus is changed to the changed traveling locus estimated in the changed traveling locus estimating unit and collision judgment is performed.02-04-2010
20100023215VEHICLE STEERING CONTROL UNIT - A vehicle steering control unit which can implement various type of self-tuning in accordance with various properties of an objective vehicle is realized. ECU includes a control information acquiring part 01-28-2010
20100286871CONTROL APPARATUS FOR ELECTRIC POWER STEERING APPARATUS - The present invention provides a control apparatus for an electric power steering apparatus comprises: a steering assist command value calculating section; a current control section that calculates a voltage command value; and a motor driving section that drives a motor based on the voltage command value, wherein an assist power from the motor is applied to a steering system, the control apparatus is characterized in that an SAT measuring section, that inputs an angular speed and an angular acceleration of the motor, the steering assist command value and the torque signal therein so as to estimate an SAT, is provided, and the SAT obtained by the SAT measuring section is feedbacked to the steering assist command value via a feedback section composed of a phase compensating section and a gain section.11-11-2010
20110118936LANE-KEEPING CONTROL METHOD AND SYSTEM - Disclosed are a lane-keeping control system and method. The lane-keeping control system includes: an information acquiring device for acquiring lane information for a neighboring lane, and neighboring vehicle information for a neighboring vehicle in a lane neighboring with a lane in which a lane-keeping controlled vehicle is running; an electronic control device for setting a running track of the lane-keeping controlled vehicle in the lane-keeping controlled vehicle's lane on the basis of the acquired lane information and the neighboring vehicle information, the electronic device producing steering torque maps along the running track, and calculating steering overlay torque values from the produced steering torque maps; and a steering device for performing steering torque control in accordance with the steering overlay torque values calculated by the electronic control device.05-19-2011
20090005932Trailer articulation angle estimation - This invention takes the advantage of existing radar, vision and ultrasonic sensors available for side blind spot detection, rear view, rear virtual bumper, and rear parking assist. Using a sensor fusion technique to combine the useful information from these sensors, the trailer articulation angles as well as trailer track width and tongue length is accurately estimated. When an active steering system is present, vehicle and trailer can be controlled with increased stability by applying the trailer information.01-01-2009
20120041644SYSTEM AND METHOD FOR DETERMINING A STEERING ANGLE FOR A VEHICLE AND SYSTEM AND METHOD FOR CONTROLLING A VEHICLE BASED ON SAME - A system for determining an angular position of a pair of steerable wheels of a vehicle having a plurality of wheels can include a yaw rate sensor, a pair of wheel speed sensors and a controller. The yaw rate sensor can be configured to output data representative of an angular velocity of the vehicle about a vertical axis of the vehicle. Each of the pair of wheel speed sensors can be configured to output data representative of a rotational velocity of a respective one of the plurality of wheels. The controller can be in electrical communication with each of the pair of wheel speed sensors and the yaw rate sensor. The controller can be configured to determine a first steering angle based on data received from the yaw rate sensor, to determine a second steering angle based on data received from the plurality of wheel speed sensors, and to select one of the first steering angle and the second steering angle for use in manipulating various vehicle parameters, including torque vectoring parameters, among other parameters.02-16-2012
20100030427Steering angle detection device and method therefor - A steering angle detection device includes: a shaft angle detector that detects a rotation angle of a shaft that transmits a rotation operation of a steering member to a steering mechanism; a motor angle detector that detects a rotation angle of a motor that applies a steering assist force to the steering mechanism; a steering angle calculation unit that calculates a steering angle on the basis of a combination of the rotation angle detected by the motor angle detector and the rotation angle detected by the shaft angle detector, and a temperature detector that detects an ambient temperature of the steering mechanism, wherein the steering angle calculation unit corrects the rotation angle detected by the motor angle detector or the shaft angle detector on the basis of the ambient temperature detected by the temperature detector and uses the corrected rotation angle to calculate the steering angle.02-04-2010
20110029201VEHICLE AUXILIARY HYDRAULIC SYSTEM - An auxiliary hydraulic system for vehicles, in particular pick-up trucks, is configured to supply hydraulic fluid under pressure to both on-board and off-board auxiliary equipment such as snow plows, dump boxes and wood splitters. The auxiliary hydraulic system includes a multi-piston fluid pump with electrically selectable poppet valves and an associated microprocessor control that facilitates variable output so that a desired proportional flow can be supplied to the auxiliary equipment. The system also provides a switchable valve arrangement for directional control and an arrangement of fluid distribution pipes and detachable couplings so that a range of different auxiliary equipment can be quickly and simply connected to the system. A simple user interface is also included so that the operator can command the auxiliary equipment from either within or in close proximity to the vehicle.02-03-2011
20110112722Method for influencing the transverse dynamics of a vehicle - The present invention relates to a method for influencing the transversal dynamics of a vehicle (05-12-2011
20110071729METHOD FOR ATTENUATING SMOOTH ROAD SHAKE IN AN ELECTRIC POWER STEERING SYSTEM - A method to reduce vehicular sensitivity to torsional smooth road shake (SRS) at the steering wheel provided by selectively increasing reverse driven-impedance of the steering system via an effective dynamic tuned vibration absorber comprising the existing power steering motor inertia supported on the torsional stiffness of the gearing to the rack in the case of a REPS system, or of the column rotary shaft in the case of a CEPS system.03-24-2011
20110087405Autonomous Parking Strategy of the Vehicle with Rear Steer - A method includes parallel parking a vehicle between a first object and a second object in response to an available parking distance therebetween. The vehicle includes front steerable wheels and rear steerable wheels. A distance between the first object and the second object is remotely sensed determining whether to apply a one or two cycle parking strategy. An autonomous one cycle parking strategy includes pivoting the front and rear steerable wheels in respective directions for steering the vehicle in a first reverse arcuate path of travel and then cooperatively pivoting the steerable wheels in a counter direction for steering the vehicle in a second reverse arcuate path of travel to a final park position. The autonomous two cycle parking strategy includes performing the one cycle parking maneuver and then changing a transmission gear to a drive gear and pivoting the front and rear steerable wheels in the first direction for moving the vehicle forward to a final park position.04-14-2011
20100017060Road-edge detection - A method is provided for detecting road-side edges in a road segment using a light-based sensing system. Input range data is captured using the light-based sensing system. An elevation-based road segment is generated based on the captured input range data. The elevation-based road segment is processed by filtering techniques to identify the road segment candidate region and by pattern recognition techniques to determine whether the candidate region is a road segment. The input range data is also projected onto the ground plane for further validation. The line representation of the projected points are identified. The line representation of the candidate regions is compared to a simple road/road-edge model in the top-down view to determine whether the candidate region is a road segment with its edges. The proposed method provides fast processing speeds and reliable detection performance for both road and road-side edges simultaneously in the captured range data.01-21-2010
20090088926Tilt Angle Detecting Apparatus for Vehicle, and Rollover Judging Apparatus Using This Tilt Angle Detecting Apparatus for Vehicle - A tilt angle detecting apparatus removes an unnecessary component included in an angular velocity detecting signal (an input ω) inputted from an angular velocity sensor 04-02-2009
20110098886FUNCTION DECOMPOSITION AND CONTROL ARCHITECTURE FOR COMPLEX VEHICLE CONTROL SYSTEM - A vehicle control architecture designed based on a top-down approach with abstraction and modularity. The control architecture includes a vehicle/environment sensing and perception processor that processes sensor signals, and motion planning processors that provide lane center trajectory planning and tracking command, lane change trajectory planning and tracking command, and forward and backward speed and target tracking command. The architecture also includes a driver command interpreter that interprets driver commands and a command integration processor that provides reference dynamics for vehicle lateral, roll and longitudinal dynamics. The architecture also includes a control integration and supervisory controller that provides control integration and outputs integrated longitudinal force command signals, integrated lateral force command signals, integrated yaw moment command signals and steering torque command signals that are used by a vehicle longitudinal controller and a vehicle lateral controller.04-28-2011
20120046832VEHICLE STEERING SYSTEM - A current increase-decrease amount (ΔI02-23-2012
20120046836Method for determining a toothed rack force for a steering device in a vehicle - Disclosed is a method for determining a toothed rack force on a steering device in a vehicle, wherein the toothed rack force (forZS) is determined as a function of a plurality of models, and wherein a component (forESM) of the toothed rack force (forZS) which relates to a driving process is generated by means of a first model, and a component of the toothed rack force (forZS) which relates to a parking process is generated by means of a second model.02-23-2012
20120046835Vehicle and Feedback Control Method - A vehicle capable of easily translating in an arbitrary direction. A vehicle comprising: wheels composed of two front wheels and two rear wheels; four steering actuators connected to the wheels, respectively, and steering the wheels; four drive actuators connected to the wheels, respectively, and driving the wheels; a joystick (02-23-2012
20100217486TRAVEL CONTROL DEVICE AND VEHICLE - Disclosed is a travel control device for easily achieving a target acceleration/deceleration even by a manual operation of a driver. A travel control device for controlling at least acceleration/deceleration of a vehicle includes acceleration/deceleration characteristic setting means for setting the range of an accelerator operation amount or a brake operation amount corresponding to an induced target acceleration/deceleration greater than the range of an accelerator operation amount or a brake operation amount corresponding to an acceleration/deceleration other than the induced target acceleration/deceleration. The acceleration/deceleration characteristic setting means generates a map GM08-26-2010
20120046834METHOD OF CONTROLLING THE YAWING MOVEMENT OF AN AIRCRAFT RUNNING ALONG THE GROUND - The invention relates to a method of controlling a yawing movement of an aircraft running along the ground, the aircraft comprising at least one first landing gear with a steerable bottom part bearing wheels. According to the invention, the method comprises the steps of: 02-23-2012
20120004808DEVICE FOR DETECTING STEERING OPERATION FORCE - A steering operation force detection device for a steering wheel including a steering wheel rim having a right-side rim section and a left-side rim section. The device includes load cells that detect six component forces of the steering operation force acting on the right-side rim section and the left-side rim section consisting of forces in three axial directions and moments about three axes. The device includes a steering angle detection sensor that detects a steering angle of the steering wheel, and an inertial force component correcting unit that derives an inertial force component acting on the right-side rim section and the left-side rim section due to rotation of the steering wheel, based on an amount of displacement of the steering angle detected by the steering angle detection sensor, and that corrects the component force detected by the load cells to eliminate an effect of the derived inertial force component.01-05-2012
20120004809 SYSTEM FOR SELECTING AND DISPLAYING A PULLING OUT MODE OF A CAR FROM A CARPORT - A system for selecting and displaying a pulling out mode installed in a vehicle comprises a memory for preliminarily storing pulling out modes indicating manners of pulling a vehicle out of a parking space, corresponding to each of parking modes indicating manners of parking in the parking space, a unit that determines parking mode of the vehicle when the vehicle is placed in the parking space, a selection and display unit that selects a pulling out mode corresponding to the determined parking mode from the memory and displays the selected pulling out mode according to an instruction from a driver of the vehicle for pulling the vehicle out of the parking space after the vehicle is placed in the parking space. Not only when a vehicle is parked with automatic steering but also when the vehicle is parked with manual steering, a parking mode can be determined. Since only an appropriate pulling out mode is selected according to a parking mode, for example, a mistaken operation of selecting an inappropriate pulling out mode can be avoided when a pulling out is performed with an automatic steering.01-05-2012
20110098889ELECTRIC POWER STEERING APPARATUS - In an electric power steering apparatus of the invention, a control circuit determines a command value of drive voltage supplied to a motor drive circuit based on an actual current through a motor and a target current. When the command value exceeds the previous value having a lower limit equivalent to a limit value representing the limit of the power supply from a battery, the control circuit controls the amount of discharge from the auxiliary power supply according to a difference between the command value and the previous value by increasing or decreasing a duty of switching devices. Thus, the power steering apparatus can save the energy of the auxiliary power supply for efficiently using the auxiliary power supply.04-28-2011
20120010782CORNER UNIT GUIDANCE CONTROL SYSTEM USING ONE ANTENNA - A corner unit guidance control system for use with a corner unit that is part of a center pivot irrigation system includes an antenna, a receiver, and a controller. The antenna may be located along a vertical axis through the center of a wheel of the corner unit and may be operable to receive signals from at least one external positional information source. The receiver may be in communication with the antenna and operable to process the signals to produce position data corresponding to a current position of the wheel. The controller may be in communication with the receiver and may be programmed to steer the wheel to a heading corresponding to a difference between the current position of the wheel and a point along the path.01-12-2012
20110166750ELECTRIC POWER STEERING DEVICE - There is provided a electric power steering device which can perform torque control through a simple arithmetic process using a synchronous reluctance motor having a nonlinear current/torque characteristic. A target torque is transmitted from an EPS control unit 07-07-2011
20120059548POWERED MOBILITY SYSTEMS AND METHODS - Powered mobility systems and methods are disclosed. A powered mobility system includes a mobile unit, a support frame, a plurality of markers, a motion capture device, and a processor. The mobile unit is operable to move the powered mobility system. The support frame is adapted to support a user. The plurality of markers are configured to be attached to the user. The motion capture device is configured to detect movement of the plurality of markers. The processor is programmed to receive signals from the motion capture device, translate the signals into instructions for moving the mobile unit, and transmit the instructions to the mobile unit. A powered mobility method includes placing a user in a support frame, attaching a plurality of markers to the user, detecting movement of the plurality of the markers, and generating movement of the mobile unit based on the movement of the plurality of the markers.03-08-2012
20120016556METHOD AND DEVICE FOR DETECTING AND COMPENSATING FOR A TRANSVERSE INCLINATION OF A ROADWAY ON WHICH A VEHICLE IS TRAVELING - A method and a device detect a transverse inclination of a roadway on which a vehicle is traveling. The transverse inclination is detected on the basis of a transverse acceleration of the vehicle that is generated by the transverse inclination of the roadway. A transverse acceleration of the vehicle is measured with a measuring device. A transverse acceleration that is generated by driving maneuvers of the vehicle is determined by a transverse inclination observer. The transverse acceleration of the vehicle due to the transverse inclination of the roadway is subsequently determined by determining a difference between the transverse acceleration generated by the driving maneuvers and the transverse acceleration measured by the measuring device. A method and a device are also provided for compensating for the transverse inclination of the roadway on which a vehicle is traveling. A steering angle which compensates for the transverse acceleration of the vehicle that is caused by the transverse inclination of the roadway, by way of a transverse inclination compensator. The steering angle is set by taking into consideration the transverse acceleration of the vehicle caused by the transverse inclination of the roadway.01-19-2012
20120016555METHOD AND SYSTEM FOR PARKING ASSIST - A parking assist method comprising the steps of capturing a rear-facing image, displaying the rear-facing image, superimposing, by way of a camera module, at least one locus line on the displayed rear-facing image, sensing a steering wheel angle change on the vehicle, extracting vehicle wheel base data from memory in the camera module, calculating, in the camera module, at least one replacement locus line in response to the change in the steering wheel angle and vehicle wheel base data, and changing the display by superimposing the at least one replacement locus line on the displayed rear-facing image in place of the at least one locus line.01-19-2012
20090118906VEHICLE BEHAVIOR CONTROL APPARATUS - In an electronic control unit including a master integrated ECU and a slave VSA ECU, the VSA ECU is provided with a request restriction unit which receives a request of the integrated ECU. The request restriction unit prohibits the use of the request and prioritizes the control of the VSA ECU when a direction of vehicle behavior controlled by the request of the integrated ECU and a direction of the vehicle behavior controlled by the VSA ECU itself are different.05-07-2009
20120059549STEERING ASSEMBLY FOR A VEHICLE AND METHOD OF OPERATING THE SAME - A steering assembly for steering a vehicle. The steering assembly comprises a first steering knuckle having a first wheel rotatably mounted thereto, a first swing mechanism for enabling displacement of the first steering knuckle along a first arced path and a first guiding mechanism for pivoting the first steering knuckle when the first steering knuckle is displaced along the first arced path in order to maintain the first wheel oriented tangentially relative to the first arced path. The first arced path is concave relative to a central longitudinal axis of the vehicle and spaced from the first frame member, away from a central longitudinal axis of the vehicle, by a distance sufficient to prevent the first wheel from contacting the first frame member when the first steering knuckle is pivoted. There is further provided a method of operating the steering assembly.03-08-2012
20110093168METHOD AND DEVICE FOR PARKING ASSISTANCE FOR A VEHICLE - The invention relates to a method and a device for assisting a parking process of a vehicle (04-21-2011
20110093167Power Steering Systems - A power steering system comprises a hydraulic circuit, a pump arranged to pressurize hydraulic fluid and valve means arranged to control the flow of pressurized fluid in the hydraulic circuit to control the steering force provided by the system. The system further comprises a motor arranged to drive the pump and control means arranged to control operation of the motor, and the control means is arranged to determine the position of the motor from a plurality of parameters by means of a position determining algorithm.04-21-2011
20120158246CONTROL APPARATUS OF REAR-WHEEL STEERING APPARATUS - In a vehicle provided with an ARS actuator and an ARS driving apparatus as the rear-wheel steering apparatus, an ECU performs ARS electric power saving control. In the control, electric power supply to the ARS actuator is cut under the conditions that a rudder angle deviation Δδr is greater than a reference deviation Δδth and that a duration Tlst exceeds a reference value Tlstth in cases where a rear-wheel rudder angle δr is greater than a reference rudder angle δrth, wherein the rudder angle deviation Δδr is a difference value between a target rear-wheel rudder angle δrtg and the rear-wheel rudder angle δr and the duration Tlst is a time in which the state that the rudder angle deviation Δδr is greater than the reference deviation Δδrth continues.06-21-2012
20120123642VEHICLE RUNNING CONTROL APPARATUS - A vehicle driving control apparatus is provided at least with: a rudder angle varying device capable of changing a relation between a steering angle, which is a rotation angle of a steering input shaft, and a rudder angle, which is a rotation angle of steered wheels; and a trajectory controlling device for controlling the rudder angle varying device such that a trajectory of a vehicle approaches a target driving route of the vehicle. The vehicle driving control apparatus is further provided with a changing device for changing responsiveness of control by the trajectory controlling device when there is a steering input given to the steering input shaft through a steering wheel by a driver of the vehicle.05-17-2012
20120109458METHOD AND SYSTEM FOR DETERMINING A REFERENCE YAW RATE FOR A VEHICLE - The method and system described herein may be used to determine a reference yaw rate (γ05-03-2012
20120072074Determining a target steering torque in a steering device - In order to achieve a steering feel for SbW systems and EPS systems having a control design for controlling the steering torque by generating a target steering torque (torTB) that can be adapted to various steering systems, vehicle types, or requirements, in which the resulting steering feel is a steering feel, in all driving conditions and driving situations, which is equivalent to, or better than, hydraulic and electromechanical steering systems available on the market today, according to the invention: a base steering torque (torB) is determined as a function of an externally acting force (torR) and a vehicle speed (velV); a damping torque (torD) is determined as a function of a steering speed (anvSW) and the vehicle speed (velV); a hysteresis torque (torF) is determined as a function of the steering speed (anvSW) and the vehicle speed (velV); a centering torque (torCF; torC) in the direction of the straight-ahead position is determined as a function of a steering wheel angle (angSW) and the vehicle speed (velV); and the base steering torque (torB), the damping torque (torD), the hysteresis torque (torF) and the centering torque (torCF; torC) form individual components, as a function of which the target steering torque (torTB) is determined.03-22-2012
20120072073SYSTEM AND METHOD FOR STABILIZING A MOTOR VEHICLE - A system for stabilizing a motor vehicle including at least one speed sensor for sensing a longitudinal speed and a transversal speed of the motor vehicle; a calculation unit which is designed to calculate an attitude angle of the motor vehicle from the sensed vehicle longitudinal speed and the sensed vehicle transversal speed; an evaluation unit which is coupled to the calculation unit and is designed to compare the attitude angle with a predefined threshold value and to detect an oversteering situation if the attitude angle exceeds the threshold value; an actuation unit which is coupled to the evaluation unit, and an actuator which influences the driving behavior of the motor vehicle, wherein the actuation unit is designed to actuate the actuator in an oversteering situation. In addition, a method which the system is suitable for carrying out is disclosed.03-22-2012
20120109461LATERAL MOTION CONTROL APPARATUS FOR A VEHICLE - A lateral motion control apparatus includes a target value obtaining unit, a control amount calculation unit, a steering intent determination unit that determines whether a driver of the vehicle is steering with intent, and a control object control unit that controls the control object so as to control the control object based on the control amount when the driver is not steering with intent, and to stop the control of the control object when the driver is steering with intent. The steering intent determination unit includes a steering operation amount obtaining unit and a threshold value setting unit that sets a threshold value for the steering operation amount based on the target value, and determines whether or not the driver is steering with intent by comparing the magnitude of the steering operation amount with the threshold value.05-03-2012
20120109460VEHICLE DYNAMIC CONTROL APPARATUS AND VEHICLE DYNAMIC CONTROL SYSTEM USING THE SAME - A vehicle dynamic control apparatus is designed to control a plurality of controlled objects according to a request value of a first parameter from an application associated with motion of a vehicle in a same direction to fulfill the request value of the first parameter. An availability obtainer obtains an availability corresponding to a controllable range of a second parameter of each of the plurality of controlled objects, the second parameter being associated with motion of the vehicle in the same direction. A selector determines an order of the plurality of controlled objects to be controlled based on the availability of the second parameter of each of the plurality of controlled objects, and selects at least one of the plurality of controlled objects to be controlled in accordance with the determined order.05-03-2012
20090326761VEHICLE CONTROL DEVICE - A vehicle control device includes a turning state changing mechanism for changing a turning state of a vehicle on the basis of a turning state changing command, and a curve-driving assessment portion for inputting therein a curve characteristic information including a shape of a curve existing in a traveling direction of the vehicle and a line-of-sight information relating to a line-of-sight of a driver and for outputting the turning state changing command to the turning state changing mechanism on the basis of the curve characteristic information and the line-of-sight information.12-31-2009
20120109459HYDRAULIC STEERING SYSTEM COMPRISING A FIRST AND A SECOND STEERING MEMBER AND VEHICLE COMPRISING A HYDRAULIC STEERING SYSTEM - A hydraulic steering system for a vehicle includes a first steering member and a second steering member, wherein the first steering member is operationally connected to a first steering valve unit including a first steering valve, and wherein a priority valve controls a flow of a hydraulic fluid to one or more steering cylinders which provide for steering of the vehicle in a desired steering direction, wherein the priority valve gives priority to steering with the first steering member over the steeling with the second steering member. A second steering valve is provided functionally operable in series with a proportional flow control valve, wherein the second steering valve and/or the proportional flow control valve are controlled at least by the second steering member.05-03-2012
20110066328Brake and Steer-by-Braking (SFB) Pedal Arrangement for Tractors - A brake and steer-by-braking pedal arrangement for tractors includes a right pedal and a left pedal operating synchronously or diachronically; and at least one hydraulic or pneumatic circuit connected to one master cylinder activated by at least one of the pedals. The pedal arrangement also has potentiometers connected electronically to an electronic central control unit and the potentiometers determine the distance between the pedals The electronic central control unit determines, on the basis of data received from the potentiometers, whether or not to activate the steer-by-braking function.03-17-2011
20110066327POWER STEERING APPARATUS - A power steering apparatus includes a motor unit, and a driven device such as a pump or worm gearing. The motor unit includes an electric motor and an electrical control unit which are mounted in a common housing. The electric motor is provided with a rotation sensor. The electric motor and the rotation sensor are electrically connected to the electrical control unit within the housing. The rotation sensor is calibrated before the driven device is coupled to the motor unit.03-17-2011
20120123641FOLLOWER VEHICLE CONTROL SYSTEM AND METHOD FOR FORWARD AND REVERSE CONVOY MOVEMENT - A vehicle control system for causing a follower vehicle to follow a leader may have a tether system mounted to the follower vehicle. The tether system may include a tether having an end adapted to be attached to the leader, a length sensor, and an angle sensor. A path tracking system operatively associated with the tether system determines a path traveled by the leader. A path control system operatively associated with the path tracking system and the follower vehicle causes the follower vehicle to follow the path traveled by the leader. A spacing control system operatively associated with the path tracking system and the follower vehicle causes the follower vehicle to maintain a predetermined spacing between the follower vehicle and the leader.05-17-2012
20090132125LANE DEVIATION PREVENTION DEVICE AND METHOD - Disclosed herein are embodiments of controllers and methods of control to enable prevention of departure of vehicle even when the degree of the tendency of the vehicle to depart from the travel lane is low. One such controller comprises a lane departure tendency determining device configured to determine a departure tendency of the vehicle to depart from a travel lane, a yaw moment computing device configured to compute a reference yaw moment based on the departure tendency, a yaw moment correction device configured to compute a target yaw moment based on at least the reference yaw moment and a controller configured to apply the target yaw moment to the vehicle. When the reference yaw moment is lower than a prescribed threshold, the yaw moment correction device gradually increases the target yaw moment over time until the target yaw moment is greater than the prescribed threshold.05-21-2009
20090132124INTELLIGENT POWERED MOBILITY FOR INFANTS AND SPECIAL NEEDS CHILDREN - A powered mobility device for advancing cognitive, perceptual and motor abilities of a child lacking natural mobility is disclosed. The device includes a seat sized for the child to be secured therein and a motorized drive assembly coupled to the seat. A local operating instrument is operably coupled to the drive assembly for operating and steering the drive assembly. The local operating instrument is positioned to allow manipulation by the child seated in the seat. A processor is operatively coupled to the motorized drive assembly and to a local steering instrument. The processor is adapted to transmit a signal to the motorized drive assembly and the local steering instrument to control the mobility device. A method for advancing cognitive, perceptual and motor abilities of a child by using the device is also disclosed.05-21-2009
20090132123APPARATUS AND METHOD OF CONTROLLING VEHICLE WHEEL SPIN - The present invention provides a vehicle wheel spin control apparatus that, when it is determined that a wheel spin occurs, reduces engine torque to prevent the wheel spin, including: detecting driving control information and information on the state of a vehicle and determining whether basic conditions required to perform engine torque limit control to prevent the wheel spin are satisfied; when the basic conditions are satisfied, calculating a speed variation and the speed gradient value, and comparing the speed gradient value with a predetermined speed gradient value to determine whether a spin occurs; when it is determined that the spin occurs, using a torque gradient map set according to the current engine torque to perform the engine torque limit control; and when the vehicle speed is reduced by the engine torque limit control and cancellation conditions are satisfied, canceling the engine torque limit control and returning to normal control.05-21-2009
20100250068STEERING DEVICE OF VEHICLE - A target turning angle calculation part 09-30-2010
20100250066Motor Vehicle Steering Wheel Having Operating Elements and Method of Operating Same - A steering wheel for a motor vehicle has operating elements for controlling at least one longitudinally dynamic control system of the motor vehicle. The operating elements include an adjusting element for changing a set speed value for the longitudinally dynamic control system, which adjusting element can be actuated in two opposite actuating directions in order to predefine a direction of the change of the set speed value by way of the actuating direction. The adjusting element can be actuated in at least two steps in each of the two actuating directions with respect to the extent of the actuation in order to predefine an extent of the change of the set speed value by way of the extent of the actuation.09-30-2010
20100250067VEHICULAR STEERING CONTROL APPARATUS AND METHOD - In vehicular steering control apparatus and method, a carrier frequency of a PWM control signal to drive an electric motor on a basis of the manipulated variable of the electric motor is controlled and the carrier frequency is set to at least two predetermined set frequencies in accordance with at least one of a driving state of the electric motor and a traveling state of the vehicle, one of the predetermined set frequencies being set to reduce noises in the inverter and the other of the predetermined set frequencies being set to reduce a switching loss in the inverter. For example, the carrier frequency is set to be lowered to the other of the predetermined set frequencies in a case where a rotational speed of the electric motor is driven in a rotational speed region (A09-30-2010
20120083972Determination of a force acting on a steering mechanism - Provided is a way of using an estimator to determine a force (Fz), which acts from the outside on a steering gear of a steering device in a vehicle by way of a steering linkage, wherein a motor for generating a steering torque is assigned to the steering device. This is achieved by estimating the force (Fz) acting from the outside as a function of an effective motor torque (tor_RAeff), wherein the effective motor torque (tor_RAeff) is determined as a function of a motor torque and an efficiency, the efficiency being determined as a function of the estimated force (Fz).04-05-2012
20120221208CONTROL DEVICE FOR STEERING TRANSMISSION RATIO VARIABLE DEVICE08-30-2012
20120221207SENSOR CONTROLLER, NAVIGATION DEVICE, AND SENSOR CONTROL METHOD - Conventional navigation devices are equipped with technology that supports the driving of a driver by detecting the surroundings of a vehicle using a plurality of sensors such as cameras. However, because complex arithmetic processing is carried out using the detection results from the plurality of sensors, the processing load increases and other processes requiring a rapid response can be delayed. As a result, consideration has been given to decreasing the amount of arithmetic processing and reducing the processing load by uniformly decreasing the processing area for information detected by the sensors. However, if the processing area is uniformly decreased, information necessary for driving support may not be obtained. Provided is a sensor control technology that better obtains information necessary for driving support: a sensor controller, characterised by carrying out predetermined processing by changing the processing area of the information acquired by the sensors according to the vehicle driving conditions.08-30-2012
20120221206SYSTEM AND METHOD FOR ELECTRONICALLY POWERED ASSISTED STEERING - A system and method for controlling a vehicle steering system, comprising receiving at least one signal corresponding to one or more of a lateral acceleration, a longitudinal acceleration, a vertical acceleration, a suspension travel, and a vehicle speed, calculating or determining an optimum steering rack travel from the at least one signal, and limiting travel of a steering rack of the vehicle based on the optimum steering rack travel.08-30-2012
20120130593VEHICLE GUIDANCE SYSTEM - A vehicle guidance system is disclosed where the vehicle includes a steering wheel assembly including a steering wheel and a hub, the hub connected to a steering shaft rotatable about a steering wheel axis within a steering column for steering the vehicle. The vehicle guidance system includes a receiver for receiving a position indication signal, a steering controller for generating a steering control signal based on the position indication signal and a drive assembly to directly drive the steering wheel assembly responsive to the steering control signal. The drive assembly generates a torque about a drive axis to rotate the steering wheel assembly, wherein the drive axis of the drive assembly is coaxial to the steering wheel axis.05-24-2012
20120130592HARMONIC PINION TORQUE CORRECTION - A method of controlling an electric power steering system is provided. The method includes: determining a scale factor based on a handwheel position; applying the scale factor to a hand wheel torque value to scale the hand wheel torque value; and generating a corrected handwheel torque signal based on the scaled hand wheel torque value.05-24-2012
20120316730LANE SENSING THROUGH LANE MARKER IDENTIFICATION FOR LANE CENTERING/KEEPING - A method for adjusting a vehicle's position in a roadway lane. A camera mounted on the vehicle generates a current image of the lane and the method identifies a current lane-center line in the current image. A reference image is generated and the method identifies a reference lane-center line in the reference image. The method then calculates an error between the current lane-center line and the reference lane-center line and provide steering commands to adjust the position of the vehicle so that the error is reduced.12-13-2012
20120316732AUTOMATIC FORWARD PARKING IN PERPENDICULAR PARKING SPACES - A method for forward parking a motor vehicle in a perpendicular parking space, wherein the motor vehicle has environment sensors for detecting environment data and obstacles in the environment of the motor vehicle, including pre-aligning the motor vehicle in front of the perpendicular parking space such that a target steering angle lies between a maximum steering angle δ12-13-2012
20120316731Mini-Spare Yaw Mitigation During Driver Braking - A method of controlling a brake system comprises monitoring vehicle information with an electronic control unit. An algorithm is performed to detect the presence of a mini-spare tire assembly. A yaw offset value is pre-determined by the electronic control unit when a mini-spare tire assembly is detected at one of the steerable tire assembly locations. The yaw offset is then applied upon detection of a brake event.12-13-2012
20100204887TURNING MOTION ASSISTANCE DEVICE FOR ELECTRIC VEHICLE - Disclosed herein is a turning motion assistance device for an electric vehicle, adapted to effectively reduce tire wear of the vehicle while at the same time ensuring appropriate turning response.08-12-2010
20100204888REAR WHEEL STEERING CONTROL SYSTEM - In a rear wheel steering control system for a vehicle, a rear wheel steering control unit (08-12-2010
20110184609POWER ASSISTED STEERING FOR AN AUTOMOBILE - The invention relates to a power assisted steering system (07-28-2011
20110184608CONTROLLING METHOD FOR A STEERING SYSTEM - The invention refers to a steering device and a method for controlling a steering device with steering power support means (07-28-2011
20100174453MOTION CONTROL SYSTEM FOR VEHICLE - A motion control system is applied to a vehicle, which has front wheel side suspensions with an anti-dive geometry and rear wheel side suspensions with an anti-lift geometry. When abrupt steering operation is started from a straight-ahead driving state of the vehicle in a non-operating period of a brake pedal of the vehicle, a controller controls a hydraulic unit such that a brake force is applied to a radially outer one of front left and right wheels, which is located on an outer side in a radial direction of an arc of turn of the vehicle upon starting the steering operation, and also to a radially inner one of rear left and right wheels, which is located on an inner side in the radial direction of the arc of the turn for a predetermined short time period.07-08-2010
20120259513DETERMINATION OF A CENTER FEELING FOR EPS STERRING SYSTEMS - In order to transmit reliable and precise information, to as great an extent as possible, on current driving conditions and driving situations, and also achieve disturbance-free behavior of the steering system in the center point range, in a steering device in a vehicle, a target steering torque (torSSW) is determined by determining an actual toothed rack force (forRT), determining at least one first component for the target steering torque (torSSW) as a function of the actual toothed rack force (forRT), and determining at least one additional component for the target steering torque (torSSW) from a calculated toothed rack force (forRS), wherein the calculated toothed rack force (forRS) is determined from a wheel steering angle and a vehicle speed (velV).10-11-2012
20100049401PARKING ASSIST APPARATUS - A target parking position setting section (02-25-2010
20100280713ROUTE GUIDANCE ASSISTANCE BY MOMENT SUPPORT AT THE STEERING WHEEL - A device and a method for route guidance assistance in a vehicle that is connected to a navigation system. In order to make it easier for the driver to follow a route calculated by a navigation system, an assisting device is provided for route guidance. The assisting device includes a control unit for generating a control signal for haptic feedback to the driver of the vehicle. As haptic feedback, the control unit can output an additional moment on the steering system of the vehicle, for example, the additional moment being negative when the vehicle departs from the travel route while being positive when the vehicle follows the calculated direction of the navigation route.11-04-2010
20090112404VEHICLE CONTROL APPARATUS - A vehicle control apparatus having a vehicle state quantity detection unit for detecting vehicle state quantity such as a roller angular velocity, a lateral jerk calculation unit for calculating lateral jerk of a vehicle based on the vehicle state quantity, and a control unit for carrying out the vehicle control based on the lateral jerk.04-30-2009
20120179334VEHICLE HAVING A VARIABLE ASSIST POWER STEERING ASSEMBLY - A recreational utility vehicle has a frame, four wheels, a pair of seats mounted laterally beside each other, a cage, a steering assembly, an engine, a front differential, a rear differential, an actuator selectively operatively connecting the engine to the front differential, and a vehicle drive mode switch for selecting between a first and second drive mode. When the first drive mode is selected, the actuator operatively connects the engine to the front differential, and when the second drive mode, the actuator operatively disconnects the engine from the front differential. An electric motor is operatively connected to the steering assembly. A steering control unit is electrically connected to the electric motor, determines an output torque to be applied by the electric motor based at least in part on a speed of the vehicle, and controls the electric motor to apply the output torque to the steering assembly.07-12-2012
20100010711VEHICLE CONTROL DEVICE - In the conventional vehicle control device, since a detection timing of turn is late, at the time of making the change of gear ratio based the detection timing, a sense of discomfort is brought to a driver. Moreover, steering wheel angle sensor, yaw rate sensor or lateral acceleration sensor is very expensive, resulting in the cost increase of the vehicle control devices. From information regarding a steering force that can be obtained from an electric power steering device, a turn intention of a driver is detected, and based the turning intention, the change of gear ratio is conducted.01-14-2010
20100268420MOTION CONTROL DEVICE FOR VEHICLE - A motion control device for a vehicle, including a braking means for applying a brake torque to a wheel of the vehicle and maintaining a traveling stability of the vehicle by controlling the braking means, the motion control device for the vehicle, includes a steering angular velocity obtaining means for obtaining a steering angular velocity of the vehicle, a yaw angular acceleration obtaining means for obtaining a yaw angular acceleration of the vehicle, and a control means for controlling the brake torque on the basis of the steering angular velocity and the yaw angular acceleration.10-21-2010
20100268419MOTION CONTROL DEVICE FOR VEHICLE - A motion control device for a vehicle having a braking means for applying a brake toque to a wheel of the vehicle and maintaining a traveling stability of the vehicle by controlling the braking means, the motion control for the vehicle, includes a steering angular velocity obtaining means for obtaining a steering angular velocity of the vehicle, a maximum steering angular velocity calculating means for calculating a maximum steering angular velocity on the basis of the steering angular velocity, a determining means for determining a reference turning state quantity on the basis of the maximum steering angular velocity, an actual turning state quantity obtaining means for obtaining an actual turning state quantity of the vehicle, and a control means for controlling the brake toque on the basis of the reference turning state quantity and the actual turning state quantity.10-21-2010
20120253602VEHICLE CONTROL APPARATUS - A vehicle control apparatus is provided with: braking force applying device (10-04-2012
20120226415Vehicle Axle Control Method, Device and System - A control method is provided for a vehicle, especially a utility vehicle trailer, that has at least one lifting axle that can be lowered and raised in a controllable manner and/or at least one steered axle that can be locked and unlocked in a controllable manner, and that also has a control device operable to control the lifting axle and/or the steered axle. When the vehicle is traveling in reverse, the control device automatically generates a control signal that lowers the lifting axle, and/or automatically generates a control signal that unlocks the steered axle. The control device can be embodied as an electronic control unit having a processor suitably programmed to carry out the foregoing process steps. The control device can be incorporated into a vehicle control system for a vehicle having an anti-lock braking system or an electronically controlled braking system.09-06-2012
20120259514ANALOG/DIGITAL CONVERSION CIRCUIT, SEMICONDUCTOR DEVICE, AND ELECTRIC POWER STEERING CONTROLLING UNIT - The present invention provides a method in which a counting source is provided in data after analog/digital conversion to lessen a load placed when new and old data after the conversion are compared to each other. A log function is prepared in an A/D conversion controlling circuit. The log function latches the output of a counter in a 12-bit digital/analog converter at the timing of outputting a pulse from a comparator to determine data written into a data register group. In the case where a setting item related to log output in an ADCR is set at 1, not only the output of the 12-bit digital/analog converter, but also the output of a timer counter of an MTU is latched as a log.10-11-2012
20090018726ELECTRIC POWER STEERING APPARATUS AND METHOD FOR CONTROLLING SAME - In a control method for an electric power steering apparatus having a steering member, a steering mechanism, and a motor for assisting steering, a steering torque applied to a steering wheel is detected, frequency analysis is performed on the detected torque, and a determination is made as to whether or not a torque component having a frequency equal to or higher than a predetermined value is included in the result of the frequency analysis. When such a torque component is included in the frequency analysis result, a predetermined rotary torque is generated in a single direction.01-15-2009
20090024278Steering Control Device for Vehicles - A vehicle steering control device which prevents overshoot or a phase delay of a vehicle position from a target position when an actuator of a steering mechanism is controlled so that an integral control reduces a positional deviation of a vehicle from the reference position of a traffic lane. An FB control unit (01-22-2009
20120259512ELECTRIC POWER STEERING APPARATUS - An object of the present invention is to provide an electric power steering apparatus that realizes weight saving and downsizing of component parts by counting and controlling the number of times of end hitting and simultaneously calculating a current limit value depending on the number of times of end hitting to limit assist .10-11-2012
20120232759ELECTRIC POWER STEERING DEVICE - An electric power steering device wherein mechanical friction is electrically provided. A steering torque value is detected by a steering torque sensor according to the operation of a steering wheel. An assist current value is calculated by an assist control section on the basis of the steering torque value. A target current value based on the assist current value is determined. For providing friction to the operation of the steering wheel, a friction control section and a friction torque value/current value conversion section generate a corrected steering torque value. A second corrected target current value is created by correcting a first corrected target current value by a friction current value. The corrected steering torque value is obtained by correcting the steering torque value by a friction torque value. The target current value is generated, resulting in a motor being subjected to driving control.09-13-2012
20120232754TORQUE BASED END OF TRAVEL SOFT STOP - A control system for controlling a steering system near an end of travel region is provided. The control system includes a first module that selectively estimates a command adjust value based on a hand wheel position and a hand wheel torque. A second module generates a motor assist command based on the command adjust value to control the steering system.09-13-2012
20120232758Leaning Vehicle with Tilting Front Wheels and Suspension Therefor - A leaning vehicle has a frame pivotally connected to the lower end of a shock tower, the pivotal connection defining a frame leaning axis wherein the frame is adapted to lean to a right side and to a left side relative to the shock tower about the frame leaning axis. The leaning vehicle includes an actuator operatively connected to the frame and to the shock tower which is adapted to impart a leaning motion to the frame relative to the shock tower about the frame leaning axis.09-13-2012
20120232757COAXIAL TWO-WHEELED VEHICLE AND ITS CONTROL METHOD - To provide a coaxial two-wheeled vehicle capable of performing a turning movement with stability and its control method. A coaxial two-wheeled vehicle in accordance with the present invention includes drive means to drive two coaxially-arranged wheels, turning reference-input input means to input a turning reference input, and control means to control the drive means according to a turning gain based on a turning reference-input input by the turning reference-input input means to thereby perform a turning movement. The control means preferably brings the turning gain to substantially zero when the coaxial two-wheeled vehicle is in a backward traveling state with a backward speed greater than or equal to a first speed, and sets the turning gain to a value greater than zero when a vehicle speed is substantially zero.09-13-2012
20120232756Fault detection, isolation and reconfiguration systems and methods for controlling electrohydraulic systems used in construction equipment - The present disclosure relates to fault detection, isolation and reconfiguration schemes, architectures and methods for use in electrohydraulic actuation systems for construction equipment. In one embodiment, a supervisory controller adapted to interface with a main controller of the construction vehicle is provided. A plurality of control nodes that interface with the supervisory controller are also disclosed, each of which includes pressure and position sensors. The nodes also include a first actuator control node for controlling operation of a first hydraulic actuator, a second actuator control node for controlling operation of a second hydraulic actuator, and a pump control node. The control system has an architecture in which faults are detected and isolated at the supervisory controller level and, where possible, within each of the control nodes at a sensor level, a component level, and a subsystem level.09-13-2012
20110130925COAXIAL TWO-WHEELED VEHICLE AND ITS CONTROL METHOD - To provide a coaxial two-wheeled vehicle capable of performing a turning movement with stability and its control method. A coaxial two-wheeled vehicle in accordance with the present invention includes drive means to drive two coaxially-arranged wheels, turning reference-input input means to input a turning reference input, and control means to control the drive means according to a turning gain based on a turning reference-input input by the turning reference-input input means to thereby perform a turning movement. The control means preferably brings the turning gain to substantially zero when the coaxial two-wheeled vehicle is in a backward traveling state with a backward speed greater than or equal to a first speed, and sets the turning gain to a value greater than zero when a vehicle speed is substantially zero.06-02-2011
20110130923VEHICLE BEHAVIOR CONTROLLING APPARATUS - A vehicle behavior controlling apparatus includes a steering state determining unit that determines a state of a steering by a driver, and a brake device controlling unit that executes a stabilization braking in which predetermined braking force is generated on a front wheel at a side reverse to a steering direction by a second steering during a turning-back steering, when it is determined that the steering angle in the second steering is held when the turning-back steering is executed by the steering state determining unit, and when it is determined that the steering angle in the second steering is held, a limitation is imposed on an amount of a reduction in the braking force. Thus, a yaw moment in the direction reverse to the yaw moment by the second steering in the turning-back steering can be generated, whereby the yaw moment due to the steering can be reduced.06-02-2011
20110130922ELECTRIC POWER STEERING SYSTEM - An electric power steering system includes a power supply, a driving motor for supplying mechanical power, and an electric power steering controller configured to control the driving motor and provide power to the driving motor. A boosting module is operatively coupled between the power supply and the electric power steering controller and is configured to boost a power output of the power supply, and supply the boosted power output to the electric power steering controller so that the driving motor receives a boosted power level.06-02-2011
20110035108STEERING DEVICE FOR VEHICLE - A vehicle steering device has an electric power abnormality detection portion that detects abnormality of the source power supply capability of an electric power source device, a vehicle speed detection portion that detects the vehicle speed, and a motor control portion that controls the driving of the electric motor on the basis of the steering torque detected by the steering torque detection portion. The motor control portion enhances the output restriction of the electric motor if the vehicle speed detected by the vehicle speed detection portion declines while the abnormality of the source power supply capability of the electric power source device is detected by the electric power abnormality detection portion.02-10-2011
20120330511STEERING CONTROL SYSTEM - In a steering control system, an ECU calculates a basic transfer ratio in accordance with a steering angle detected by a steering angle sensor or a corrected transfer ratio by correcting the calculated basic transfer ratio in accordance with the position of a rack. The corrected transfer ratio decreases when the rack moves from a predetermined first position close to one end of a movable range, to the one end or from a predetermined second position close to the other end of the movable range, to the other end. The ECU determines either the basic transfer ratio or the corrected transfer ratio as the transfer ratio in accordance with the position of the rack. The ECU controls an actuator for a variable gear ratio system in accordance with the transfer ratio.12-27-2012
20120330510STEERING CONTROL SYSTEM - In a steering control system, an ECU calculates a basic assist torque in accordance with a steering torque detected by a torque sensor, and a corrected assist torque by correcting the calculated basic assist torque in accordance with the position of a rack by making corrections so that the basic assist torque decreases when the rack moves from a predetermined first position, which is close to a first end of a movable range, to the first end or from a predetermined second position, which is close to a second end of the movable range, to the second end. The ECU determines either the basic assist torque or the corrected assist torque as the assist torque in accordance with the position of the rack. The ECU controls the drive of an actuator in accordance with the determined assist torque.12-27-2012
20120330509STEERING SYSTEM IN A VEHICLE - A steering system of a vehicle in the transmission path between the steering wheel and the point of application of a servo unit includes a coupling element which is adjustable between a closed position transmitting a steering movement and a decoupled open position.12-27-2012
20120330508SYSTEM AND METHOD FOR CONTROLLING ELECTRIC POWER STEERING ASSIST - An automotive vehicle may include an engine, an electric power steering system and at least one controller. The at least one controller may, during an auto stop event of the engine, reduce at a first rate an available electric power steering system current to a non-zero threshold value before fuel to the engine is shut off and reduce at a second rate different than the first rate the available electric power steering system current from the non-zero threshold value to 0 after fuel to the engine is shut off.12-27-2012
20120271513ELECTRIC POWER STEERING APPARATUS - In the event of a failure of a first electric motor drive signal generator, e.g., the microcomputer, which generates a first electric motor drive signal for performing a feedback control, a second electric motor drive signal generator, e.g., a PWM signal generator, which is made up of discrete circuit components, directly converts a steering torque signal into a second electric motor drive signal. An electric motor, which generates the assistive steering force, is driven by the second electric motor drive signal.10-25-2012
20120271512DETECTION OF AND COUNTER-MEASURES FOR JACKKNIFE ENABLING CONDITIONS DURING TRAILER BACKUP ASSIST - A vehicle comprises a trailer angle detection apparatus and a trailer backup control system coupled to the trailer angle detection apparatus. The trailer angle detection apparatus is configured for outputting a signal generated as a function of an angle between the vehicle and a trailer towably attached to the vehicle. The trailer backup control system includes a jackknife enabling condition detector and a jackknife counter-measures controller. The jackknife counter-measures controller alters a setting of at least one vehicle operating parameter for alleviating an adverse jackknife condition during backing of the trailer by the vehicle when the jackknife enabling condition detector determines that a jackknife enabling condition has been attained at a particular point in time during backing of the trailer by the vehicle.10-25-2012
20110231064ELECTRIC POWER STEERING APPARATUS - [Problem] The present invention provides an electric power steering apparatus that is capable of suppressing behaviors of steering assist and performing assist control without an uncomfortable feeling even though a power voltage varied drastically during cranking.09-22-2011
20100070135Steering Pull Compensation - A method for steering pull compensation to maintain a steering load below a predetermined threshold value. A straight line driving condition is verified through vehicle sensors and/or GPS, drive torque control is performed such that the steering load is kept below the predetermined threshold value. The steering pull compensation method may be disabled by a vehicle operator and is disabled in the absence of a verified straight line driving condition.03-18-2010
20110238265Controller And Control Method For A Motorised Vehicle - A controller for a motorised vehicle having at least a left wheel and a right wheel is provided, where the left wheel and the right wheel are driven independently by a motor arrangement. The controller is arranged to receive control signals from a user input device of the motorised vehicle, the control signals determining a requested left wheel velocity and a requested right wheel velocity. A requested speed of the motorised vehicle is given by a mean of the requested left wheel velocity and the requested right wheel velocity and a requested spin of the motorised vehicle is given by a mean difference of the requested left wheel velocity and the requested right wheel velocity. A scaling unit determines a scaling factor in dependence on the requested speed and the requested spin and scales both the requested speed and the requested spin by the scaling factor to generate a target speed and a target spin. The controller is configured to convert the target speed and the target spin into a target left wheel velocity and a target right wheel velocity and the motor arrangement is responsive to the controller to drive the left wheel at the target left wheel velocity and to drive the right wheel at the target right wheel velocity.09-29-2011
20120277956REAR WHEEL STEERING CONTROL DEVICE - Generally, the toe angle target speed limiting unit (11-01-2012
20120277954STEERING CONTROL DEVICE11-01-2012
20120277957DRIVING ASSIST DEVICE - A driving assist device detects the position of a vehicle 11-01-2012
20120277955DRIVING ASSISTANCE DEVICE - Based on a requested target input by the driver using input means 11-01-2012
20110264328METHOD FOR IMPROVING THE DRIVING STABILITY OF A VEHICLE - A method for improving the driving stability of a vehicle, including ascertaining a trajectory to be followed by the vehicle in a situation-specific manner, an active steering system and/or a braking device being set in the vehicle in such a way that at least one transverse dynamic state variable is within an associated limiting value.10-27-2011
20110276228METHOD AND ARRANGEMENT FOR STEERING OF A VEHICLE, COMPUTER PROGRAM, COMPUTER AND A VEHICLE - A method for variation of steering sensation in a steering arrangement of a vehicle, e.g. a truck, which steering arrangement comprises a steering column (11-10-2011
20110276227Driving Support Device - A conventional brake control can generate only a small yaw moment compared with a steering control, so that reliable avoidance of obstacles cannot be obtained. With a steering control, the driver gets behind the wheel every time when crossing a lane and has an uncomfortable feeling. To solve these problems, a traveling aid device comprises: a detection unit for detecting the traveling state of a vehicle, the position of a lane marker, and the positions and types of obstacles around the vehicle; a calculation unit for calculating, based on the traveling state of the vehicle, the position of the lane marker, and the positions and types of the surrounding obstacles, a target yaw moment so as to prevent a departure from the lane marker and a collision with the surrounding obstacles; and a distribution unit for distributing, based on at least one of the traveling state of the vehicle, the position of the lane marker, and the positions and types of the surrounding obstacles, the target moment to a first actuator for controlling the driving/braking force and a second actuator for controlling the steering.11-10-2011
20110276225METHOD AND SYSTEM FOR AUTOMATIC WHEEL POSITIONING - A system and method for automatically angularly positioning wheels of an automotive vehicle after parking. The system disclosed here includes a power-assisted steering system coupled to the wheels. Further, the system includes a controller, coupled to the steering system, which is configured to automatically position the wheels in a desired direction, based on a determination that the vehicle is parked.11-10-2011
20120101685Power Steering System For A Vehicle And Method For Limiting A Torque Applied By A Power Steering System - A power steering system (04-26-2012
20120101684MOTOR VEHICLE STEERING SYSTEM - A steering system for a motor vehicle equipped with a cargo-handling machine including a pair of left and right loading portions is provided. The steering system includes a turning actuator that turns a steered wheel according to an operation of a steering member, and a side shift actuator that shifts the pair of loading portions in the left-right direction. A control unit that controls driving of the side shift actuator includes a target side shift amount calculating section that calculates a target side shift amount of the pair of loading portions based on lateral acceleration detected by a lateral acceleration sensor.04-26-2012
20120101683ELECTRIC POWER STEERING SYSTEM - An electric power steering system includes an overheat protection current value arithmetic unit that computes an overheat protection current value to which a current flowing into a motor is limited, and an overheat protection control unit that limits the current, which flows into the motor, on the basis of the computed overheat protection current value, suppresses heat dissipation caused by the current flowing into the motor, and thus protects onboard equipment. Information relevant to the computed overheat protection current value is stored. Whether a newly computed overheat protection current value is abnormal is decided based on comparison of the newly computed overheat protection current value with the stored information relevant to the overheat protection current value.04-26-2012
20100198462ELECTRIC MOTOR CONTROLLER AND ELECTRIC MOTOR CONTROLLER FOR VEHICLE STEERING APPARATUS - An electric motor controller for controlling an electric motor that includes a rotor and a stator that faces the rotor. The electric motor controller includes a current drive unit; an addition angle calculation unit; a control angle calculation unit; a torque detection unit; a changing unit and a suspending unit08-05-2010
20100198461METHOD AND APPARATUS FOR CONTROLLING AN ELECTRIC ASSIST MOTOR USING A MODIFIED BLENDING FILTER - A method for controlling an electric assist motor for providing steering assist in response to a sensed torque signal includes the step of filtering the sensed torque signal to provide a low frequency torque signal and a high frequency torque signal. A low frequency assist torque signal is determined as a function of the low frequency torque signal. A high frequency assist gain signal is determined as a function of the sensed torque signal and a sensed vehicle speed. The high frequency assist gain signal is applied to the high frequency torque signal to determine a high frequency assist torque signal. A torque command signal is determined as a function of the low frequency assist torque signal and the high frequency assist torque signal. The electric assist motor is commanded to provide steering assist in accordance with the torque command signal.08-05-2010
20090192676Method for Populating Motor Vehicle Yaw Gain Tables for Use in an Electronic Stability Control System - An automated and algorithmic method utilizing motor vehicle steering geometry knowledge, applicable to small and large turn angles, along with knowledge of motor vehicle understeer gradient, for determining motor vehicle yaw gain by which a motor vehicle yaw gain table is populated for use by an electronic stability control system of the motor vehicle. The method may utilize either a recursive methodology of population or an open loop methodology of population.07-30-2009
20100168962VEHICLE STEERING SYSTEM - A vehicle steering system includes: a steeling operation member (07-01-2010
20130013152METHOD FOR OPERATING A BRAKE DEVICE OF A VEHICLE WITH A BRAKE PRESSURE DIFFERENCE ON AN AXLE ADAPTED AS A FUNCTION OF A STEER INPUT - A method, and related device, for operating a brake device of a vehicle with brake slip regulation (ABS) on roadways with different friction coefficients on different sides, as a result of which a braking yaw moment is imparted to the vehicle during braking, characterized in that, on at least one axle of the vehicle, an absolute brake pressure difference between the, brake pressure at the wheel with the higher friction coefficient and the brake pressure at the wheel with the lower friction coefficient is adapted as a function of a steer input, intended to produce a yaw moment acting counter to the braking yaw moment, by the driver and/or by an automatically intervening auxiliary steering system.01-10-2013
20130013151METHOD AND BRAKING SYSTEM FOR INFLUENCING DRIVING DYNAMICS BY MEANS OF BRAKING AND DRIVING OPERATIONS - A method and a braking system are provided, in which the driving dynamics of a motor vehicle are influenced, a driver-independent braking action generating a yawing moment which assists a steering in or steering round of the motor vehicle, and a driver-independent increase in the drive torque being caused on at least one wheel, in order at least partially to compensate the braking deceleration of the motor vehicle, a braking action being required when the ratio of the instantaneously used coefficient of friction and of the possible utilizable coefficient of friction overshoots a stipulated threshold value.01-10-2013
20130013150INCLINATION CONTROLLING METHOD USING TORQUE VECTORING SYSTEM - An inclination control method using a torque vectoring system, may include a) detecting a vehicle speed, a steering angle, a yaw rate, and a steering torque of a vehicle, b) determining whether the vehicle may be tending to be inclined according to detected values of the vehicle speed, the steering angle, the yaw rate, and the steering torque, c) determining a torque vectoring duty according to the magnitude of the steering angle and the yaw rate when it may be determined that the vehicle may be tending to be inclined, and d) controlling the torque vectoring system according to the determined torque vectoring duty.01-10-2013
20120150388STEERING WHEEL CONTROLS - A method where vibration information is received from a plurality of vibration sensors fixed to a steering wheel at given positions of the steering wheel. It is then determined, based on the received vibration information and expected propagation of vibration along the steering wheel, whether a user has caused vibration to the steering wheel and at which section of the steering wheel the vibration is caused. The section of the steering wheel where the vibration is caused to the steering wheel is referred to as a touch section. Responsive to the determination of the touch section, a user command is determined and a corresponding control command is sent to a controllable device so that a user can command the controllable device in a desired manner e.g. by tapping a particular section of the steering wheel.06-14-2012
20130018550WHEEL ALIGNMENT APPARATUS USING MOTOR-DRIVEN POWER STEERING AND CONTROL METHOD THEREOFAANM KIM; JEONG KUAACI Yongin-siAACO KRAAGP KIM; JEONG KU Yongin-si KR - The present invention relates to a wheel alignment apparatus using a motor-driven power steering (MDPS) and a control method thereof. After a vehicle having the MDPS mounted therein is parked, a steering angle is detected and a wheel is aligned with the center by controlling an MDPS motor through a motor angular velocity and a motor current. Accordingly, the motor angular velocity of the MDPS motor which is actually driven to align the wheel with the center is controlled to improve the precision of motor control, regardless of external disturbance such as tire frictions or loads01-17-2013
20130018549VEHICLE EMERGENCY EVACUATION DEVICEAANM Kobana; MasumiAACI Fuji-shiAACO JPAAGP Kobana; Masumi Fuji-shi JPAANM Kawamata; ShinyaAACI Mishima-shiAACO JPAAGP Kawamata; Shinya Mishima-shi JP - In a vehicle emergency evacuation device which stops a running vehicle automatically or keeps a stop state of a stopped vehicle in a driver's emergency, a stop keeping process is executed to keep the stop state without conducting an intention confirmation process of the execution start of an emergency evacuation process when the emergency evacuation process is required, e.g. when an abnormality or a deterioration in the driver's condition arises or when the driver requests the emergency evacuation process, under a condition that the vehicle has stopped before a signal, a road crossing or a railroad crossing, thereby ensuring the safety of the vehicle. Moreover, there are provided a structure in which the stop site of the vehicle in the execution of automatic vehicle stop control is determined depending upon whether the running road is a driveway, a highway, or a normal road; and a structure that judges whether or not to permit an override to the emergency evacuation process after the execution start of the emergency evacuation process based on a passenger's motion.01-17-2013
20110160964TECHNIQUE FOR OPERATING A VEHICLE EFFECTIVELY AND SAFELY - A control system is employed in a vehicle to assist a user to operate the vehicle effectively and safely. In accordance with the invention, the system provides driving assistance to the user by taking into account the user's physical condition, the vehicle condition and the surrounding conditions. The surrounding conditions include, e.g., road, weather and traffic conditions, external to the vehicle. The vehicle condition concerns the conditions of the brakes, steering, tires, radiator, etc. of the vehicle. Signs of fatigue, stress and illness of the user are monitored by the control system to assess the user's physical condition.06-30-2011
20110160963VEHICLE SPEED CONTROL DEVICE - A vehicle speed control device is provided. The device includes a steering device which steers left and right wheels, first and second electric motors which separately apply power to the left and right wheels, an operation amount acquisition unit which acquires an acceleration operation amount by the driver of the vehicle, a steering angle acquisition unit which acquires a steering angle which is a value between an inner wheel steering angle and an outer wheel steering angle; a vehicle speed acquisition unit configured to acquire an actual speed of the vehicle; and a control unit configured to control the first electric motor and the second electric motor on the basis of the acceleration operation amount, the actual speed, the steering angle, and a steering geometry indicating a geometric relationship between the steering angle and a turning center of the vehicle.06-30-2011
20110160962Vehicle Control System and Method - A vehicle control system for a vehicle having an onboard diagnostics connector and a connector interface connected to the onboard connector includes at least one external controller adapted for unfastenable connection to the connector interface; and at least one operator control connected to said at least one external controller.06-30-2011
20110160961GUIDANCE USING A WORKED EDGE FOR WAYLINE GENERATION - Wayline generation using a worked edge may be provided. A field boundary line and first work implement width may be received. A first wayline may then be calculated according to a distance from the field boundary line comprising the width of the first work implement. The first wayline may be provided to another machine and a width of the other machine's work implement may be received. A second wayline may then be calculated according to a distance from the first wayline comprising the width of the second machine's work implement.06-30-2011
20130024071Steering Wheel Input Device Having Gesture Recognition and Angle Compensation Capabilities - A steering wheel input device is mounted on a vehicle steering wheel and includes a pointer detection device detecting a pointer event on a pointer detection surface, any movement or breaking of the pointer event, and the speed, velocity, and acceleration of the pointer event, and outputs a corresponding pointer detection signal. The steering wheel input device also includes a rotation angle sensor and a processor. The rotation angle sensor takes measurements related to an angle of rotation of the steering wheel and outputs a corresponding rotation detection signal. The processor determines the angle of rotation of the steering wheel using the rotation detection signal, determines which gesture that the pointer detection signal corresponds to using the pointer detection signal and the angle of rotation of the steering wheel, and outputs a command corresponding to the gesture. The command can serve as input to control vehicular systems.01-24-2013
20130173114METHOD AND APPARATUS FOR AUTOMOBILE ACCIDENT REDUCTION USING LOCALIZED DYNAMIC SWARMING - A method, system, and apparatus to detect when one or more moving vehicles are close to a first vehicle, and to take necessary actions to maintain a minimum distance between vehicles in a dynamic environment by automatic navigation. A computer method and apparatus for automobile accident reduction by maintaining a minimum distance with respect to all nearby vehicles on the road. In addition, methods to synchronously move a group of vehicles on a highway through a swarming action where each vehicle keeps a region immediately around it free of other vehicles while maintaining the speed of the vehicle immediately in front or nearby is also disclosed.07-04-2013
20080255728Path Planning - The present invention relates to a method of determining the path of a vehicle along a two-dimensional plane intended to control the movement of the vehicle by means of a driver-assisting system, where the path interconnects an initial state and a terminal state and each of the states Zi=[xi, yi, ψi, ci] along the path is characterized by four state coordinates with xi and yi being the Cartesian coordinates of a point Pi, ψi being the direction angle of the tangent line, and ci being the curvature of the path at point Pi, and where the path is made up of a number of elementary paths meeting at junction points JPi such that the four state coordinates of state Zi are characterized by a continuous transition at the junction points JPi.10-16-2008
20080255727Method and Device For Protecting the Driver During Driver-Independent Superposition of Steering Moments - In a method for deactivating a driver assistance system that influences the steering, a driver-independent system steering variable is applied to the steering wheel by the driver assistance system, the value of a driver steering variable applied to the steering wheel by the driver is determined, and the driver assistance system is deactivated dependent on the driver steering variable.10-16-2008
20080249684OVERTURN PREVENTION CONTROL DEVICE FOR TWO-WHEEL VEHICLE - An overturn prevention control device for a two-wheel vehicle having a vehicle body, a front wheel, an actuator that steers the front wheel, a rear wheel, and a rear-wheel driving portion, includes an angular velocity sensor and a control unit arranged to output a steering angle command signal for controlling the actuator. The angular velocity sensor includes a detection axis, is mounted on the vehicle body such that the detection axis is downwardly inclined at a predetermined angle relative to a forward direction of the vehicle body, and detects an angular velocity about the detection axis. The angular velocity detected by the angular velocity sensor includes an angular velocity in a lateral direction of inclination and an angular velocity in an azimuthal direction. The zero-set error and offset noise are incorporated into the azimuth angle command. Thus, the two-wheel vehicle can be prevented from overturning.10-09-2008
20080228353SYSTEM AND METHOD OF STEERING FOR A WORK VEHICLE TOWING A TOWED IMPLEMENT ON LATERAL SLOPES - A steering system for a work vehicle towing a towed implement is described. A steering control unit is coupled to a location signal generation arrangement on the vehicle, a steering actuator, a memory for storing desired path data of the implement and a slope sensor for detecting a lateral inclination of the work vehicle or the implement. The steering control unit calculates a lateral offset compensation value to steer the work vehicle such that the implement is moved on the desired path and a slope offset compensation value based upon a signal from the tilt sensor to compensate for slope forces pulling the implement down a lateral slope. A steering signal is sent to the steering actuator based upon the lateral offset compensation value and the slope offset compensation value.09-18-2008
20130173118ELECTRIC POWER STEERING APPARATUS - An ECU includes two drive circuits corresponding to the motor coils of two systems independent of each other, and a microcomputer that outputs control signals of two independent systems to the drive circuits. The microcomputer includes a first control signal output portion that outputs the control signal to the drive circuit of the first system by executing an electric current control so as to generate a motor torque that corresponds to the assist force. The microcomputer further includes a second control signal output portion that outputs the control signal to the drive circuit of the second system by executing a position control on the basis of a steering angle command value that is input from a superior ECU via an in-vehicle network so as to change the steering angle of the steering road wheels.07-04-2013
20130173115LANE-KEEPING ASSISTANCE METHOD FOR A MOTOR VEHICLE - A lane-keeping method and system for a motor vehicle determines a transverse deviation and an misalignment angle of the motor vehicle relative to a target lane centerline, calculates a reference track for the motor vehicle to follow to return to the centerline using the transverse deviation and the misalignment angle, determines a reference yaw rate using a curvature of the reference track and a longitudinal speed of the vehicle, and compares the reference yaw rate with an actual yaw rate of the vehicle to determine a control deviation. A steering input is then applied to a steering system of the motor vehicle to minimize the control deviation.07-04-2013
20130173119STEERING SYSTEM FOR MOTOR-DRIVEN VEHICLE - An object of the present invention is to provide a steering system for a motor-driven vehicle, which has steering operability equivalent to that of a vehicle mounted with a conventional internal combustion engine only, and has steering operability equivalent to an inherent one even during the time when fail-safe control of assist of steering force is carried out. To achieve this object, in the steering system for a motor-driven vehicle including a drive motor that is a power source for the motor-driven vehicle, a motor speed sensor for detecting the speed of the drive motor, a steering system for giving a steering angle to front wheels according to the steering angle of a steering wheel, a vehicle speed sensor for detecting the speed of the motor-driven vehicle, and a power steering controller that outputs an assist amount according to the steering of a passenger based on at least one of the output signals of the motor speed sensor and the vehicle speed sensor, as the speed of the motor-driven vehicle or the speed of the drive motor increases, the assist amount is made smaller.07-04-2013
20130173117ELECTRONIC TAG ALONG - Disclosed embodiments include power machines that provide an electronic tag along mode of operation. A control system is coupled to and selectively provides power to the left and right side tractive elements from the power source. First and second user input devices each provide an actuation signal indicative of manipulation between a neutral state and a forward state. An electronic tag-along input device provides a tag-along activation signal. When each of the first and second user input devices are in the forward state and the electronic tag-along input device provides a tag-along activation signal, a controller maintains power to the left and right side tractive elements when one of the first and second user input devices is in the forward state and the other of the first and second user input devices is the forward or neutral state.07-04-2013
20130173116AUTOMATIC TRANSITION CONTROL OF HITCH MODES - In one embodiment, a control method for a multi-mode steerable 3-point hitch coupled to a work machine, the hitch comprising a pivotal hitch frame and a hitch support structure affixed to a chassis of the work machine, the hitch frame coupled to first and second draft arms and the hitch support structure coupled to a pair of steering cylinders that are coupled to the hitch frame, the control method comprising: receiving a signal corresponding to one or more parameters; and responsive to the one or more parameters reaching or exceeding a respective threshold value, automatically causing the plural steering cylinders to switch between the non-articulated mode and the multi-mode, the multi-mode including articulation and draft sway motion of the hitch.07-04-2013
20130090809ELECTRIC POWER STEERING SYSTEM - A power relay is provided in a power line, which supplies power from a power source to a motor through an inverter circuit, to shut off power supply from the power source to the inverter circuit when an abnormality arises. A microcomputer diagnoses a short-circuit failure of the power relay when a steering wheel is not steered during a normal control operation of assisting the steering operation of the steering wheel. An EPS shuts off power supply by the power relay when the steering wheel is not steered, so that the short-circuit failure of the power relay is diagnosed without affecting the assist operation for the steering wheel.04-11-2013
20130090810VEHICLE ATTITUDE CONTROL SYSTEM - A target sideslip angle computing unit calculates a target sideslip angle used when a vehicle makes a turn, based on a steering angle and a vehicle speed. A target sideslip angle correcting unit corrects the target sideslip angle calculated by the target sideslip angle computing unit using a sideslip angle correction amount calculated based on at least one of a steering angular velocity, a depression amount of an accelerator pedal, a depression velocity of the accelerator pedal and a depression amount of a brake pedal. Vehicle attitude control is executed using the target sideslip angle corrected by the target sideslip angle correcting unit.04-11-2013
20130090811APPARATUS AND METHOD FOR ADJUSTING ELECTRIC POWER STEERING DEVICE - An adjusting apparatus for an electric power steering device includes a steering mechanism converting an input torque into a steering force and transmitting the steering force to wheels, a torque sensor outputting a torque detection signal according to an input torque, an electric motor applying a steering assist torque according to a torque detection signal output from the sensor, a sensor circuit changing output characteristics of the sensor, an actuator applying an input torque to the steering mechanism, a steering force meter actuating the motor via the sensor according to an input torque and measuring a steering force output by the steering mechanism, and a sensor output adjuster adjusting the output characteristic of the sensor circuit to approximate a steering force measured by the meter to an ideal value set in advance according to a deviation amount calculated based on a difference between the steering force and the ideal value.04-11-2013
20130096777VEHICULAR IMAGE SENSING SYSTEM - An image sensing system for a vehicle includes an imager disposed at or proximate to an in-cabin portion of a vehicle windshield and having a forward field of view to the exterior of the vehicle through the vehicle windshield. The photosensor array of the imager is operable to capture image data. The image sensing system identifies objects in the forward field of view of the imager via processing of captured image data by an image processor. The photosensor array may be operable to capture frames of image data and the image sensing system may include an exposure control which determines an accumulation period of time that the photosensor array senses light when capturing a frame of image data. Identification of objects may be based at least in part on at least one of (i) shape, (ii) luminance, (iii) geometry, (iv) spatial location, (v) motion and (vi) spectral characteristic.04-18-2013
20130096778VEHICLE TRAVEL CONTROL DEVICE - A travel control device for a vehicle has a steered angle varying device 04-18-2013
20130103262VEHICLE STEERING APPARATUS - A vehicle steering apparatus for setting a target steering reaction force to be applied to a steering wheel on the basis of a steering angle and a vehicle speed and for performing reaction force control to apply the target steering reaction force, is provided with: a steering speed specifying device for specifying a steering speed of the steering wheel; and a target steering reaction force changing device for changing magnitude of the target steering reaction force in accordance with magnitude of an absolute value of the steering speed specified by the steering speed specifying device.04-25-2013
20130103261METHOD FOR GENERATING REQUEST COMMAND OF WHEEL ALIGNMENT APPARATUS USING MOTOR-DRIVEN POWER STEERING - The present invention relates to a method for generating a request command of a wheel alignment apparatus using a motor-drive power steering (MDPS). After a vehicle having the MDPS mounted therein is parked, a steering angle is detected, and an MDPS motor is controlled through a request command of a motor angular velocity to align a wheel with the center.04-25-2013
20130103260METHODS AND SYSTEM FOR AUTOMATIC USER-CONFIGURABLE STEERING PARAMETER CONTROL - A vehicle guidance system and method for automatically adjusting an amount of a user-configurable steering parameter applied to at least one steerable wheel of a vehicle. The vehicle guidance system may comprise a computing device for receiving a desired angle of the steerable wheel, measuring the actual angle of the steerable wheel, and comparing the actual angle with the desired angle. The computing device may then decrease the user-configurable steering parameter automatically if over-steering has occurred, meaning the actual angle of the wheel is determined to be greater than the desired angle of the wheel and angled in the same direction as the desired angle, or the computing device may increase the user-configurable steering parameter automatically if under-steering has occurred, meaning the actual angle of the wheel is determined to be less than the desired angle of the wheel or is angled in the opposite direction as the desired angle.04-25-2013
20130179037STEERING APPARATUS, AND KICKBACK DETERMINATION APPARATUS - There is provided a steering apparatus that includes a steering member that is provided in a vehicle and that is capable of being turned so as to steer the vehicle; and a determination device configured to determine that a kickback state is present if an operation point determined according to the steering angle of the steering member and the steering torque that acts on the steering member is outside a criterion region that is determined beforehand. The steering apparatus and the kickback determination device are able to properly cope with the kickback.07-11-2013
20130179036LANE TRACKING SYSTEM WITH ACTIVE REAR-STEER - A lane tracking system for a vehicle includes a front steering controller, a rear steering controller, and a lane tracking processor. The front steering controller is configured to rotate a front wheel of the vehicle through a front steering angle in response to a front steering torque command, and the rear steering controller is configured to rotate a rear wheel of the vehicle through a rear steering angle in response to a rear steering torque command. The lane tracking processor is configured to determine a desired course of the vehicle along a roadway, estimate a trajectory of the vehicle based on sensed vehicle motion, compute an error between the determined desired course and the estimated trajectory, and provide a front steering torque command to the front steering controller, and a rear steering torque command to the rear steering controller to minimize the computed error.07-11-2013
20130124044ELECTRICAL LIMITATION OF A STEERING DEVICE PATH - An electrical limitation of a travel of a steering device of a wheeled vehicle, in particular of a passenger car, including a control, is provided. The method includes reading-in of a stored vehicle configuration into the control of the steering device, and deriving an adjusting value limitation from the read-in vehicle configuration. The method includes electrically limiting travel of the steering device through the control based on the derived adjusting value limitation.05-16-2013
20130124043ELECTRICAL LIMITATION OF A STEERING GEAR TRAVEL PATH - A method for an electrical limitation of the travel path of a steering gear in a wheeled vehicle, in particular a passenger car, which exhibits a steering drive, is provided. The method includes adjusting the steering gear in a first direction and acquiring a first maximum travel path in the first direction. The method includes prescribing a first limiting value based upon this acquired first maximum travel path and electrically limiting the travel path of the steering gear in the first direction based upon the first limiting value. The first maximum travel path is acquired by the steering drive.05-16-2013
20130124042Driver-Assistance System Having Control of the Vehicle Brake System and Distance Warning - The present system relates to driver-assistance systems providing a parking-assistance functionality, in which a vehicle brake system is actively controlled. Among other components, the parking assistance system includes a parking device for implementing a parking operation along a calculated parking trajectory, and an output device for outputting distance information about detected objects to a man-machine interface. The parking device is configured to brake only for the at least one parking-space-delimiting object (PLBO) detected prior to the parking operation, but not for a non-parking-space-delimiting object (non-PLBO) detected in the course of the parking operation. The output device is configured to output to the MMI only distance information about the non-PLBO, but no distance information about the PLBO during the parking operation.05-16-2013
20130124041METHOD FOR ASSISTING A DRIVER OF A VEHICLE DURING A DRIVING MANEUVER - In a method for assisting a driver of a vehicle in a driving maneuver, at least the surrounding area in front of the vehicle in the direction of travel is monitored, in order to detect objects with which the vehicle would collide if the vehicle maintained its direction of travel; in the event of an imminent collision with an object, a necessary steering action and/or a necessary braking action being indicated to the driver, and/or an automatic steering action and/or an automatic braking action being taken, in order to prevent a collision with the object. The contour of the body of the vehicle is taken into account for ascertaining if a collision with the object is imminent.05-16-2013
20130124045VEHICLE STEERING CONTROL APPARATUS - A vehicle steering control apparatus (05-16-2013
20130131924SYSTEM OF CONTROLLING STEERING APPARATUS OF VEHICLE AND METHOD FOR SUPPLYING CURRENT THEREOF - A system of controlling a steering apparatus of a vehicle that has a motor driving section provided with a motor and a motor shaft, a power delivery section delivering a torque of the motor for assisting maneuvering force to a steering column, and a variable steering section controlling an angle and a length of the steering column by the torque of the motor, may include a first converting section selectively delivering the torque to one of the power delivery section and the variable steering section by using a motor clutch, a connecting section selectively connected to the first converting section and delivering the torque to the variable steering section, and a control portion controlling operations of the motor, and the motor clutch, wherein the motor clutch is a clutch using a first electromagnet, and wherein the control portion controls supply of current to the first electromagnet of the motor clutch.05-23-2013
20110276226METHOD OF MANAGING A TURNING MOVEMENT OF AN AIRCRAFT TAXIING ON THE GROUND - The invention relates to a management method for managing a turning movement of an aircraft taxiing on the ground, the aircraft having wheels each fitted with an independent drive device, in which method commands are generated for the independent drive devices so that at least some of those devices contribute to the turning movement. According to the invention, the method comprises the steps of: 11-10-2011
20130144490PRESENTATION OF SHARED THREAT INFORMATION IN A TRANSPORTATION-RELATED CONTEXT - Techniques for ability enhancement are described. In some embodiments, devices and systems located in a transportation network share threat information with one another, in order to enhance a user's ability to operate or function in a transportation-related context. In one embodiment, a process in a vehicle receives threat information from a remote device, the threat information based on information about objects or conditions proximate to the remote device. The process then determines that the threat information is relevant to the safe operation of the vehicle. Then, the process modifies operation of the vehicle based on the threat information, such as by presenting a message to the operator of the vehicle and/or controlling the vehicle itself.06-06-2013
20080208409VEHICLE DYNAMICS CONTROL APPARATUS - In a vehicle dynamics control apparatus capable of balancing a vehicle dynamics stability control system and a lane deviation prevention control system, a cooperative control section is provided to make a cooperative control between lane deviation prevention control (LDP) and vehicle dynamics stability control (VDC). When a direction of yawing motion created by LDP control is opposite to a direction of yawing motion created by VDC control, the cooperative control section puts a higher priority on VDC control rather than LDP control. Conversely when the direction of yawing motion created by LDP control is identical to the direction of yawing motion created by VDC control, a higher one of the LDP desired yaw moment and the VDC desired yaw moment is selected as a final desired yaw moment, to prevent over-control, while keeping the effects obtained by both of VDC control and LDP control.08-28-2008
20080201038Determination of the Actual Yaw Angle and the Actual Slip Angle of a Land Vehicle - In a method for determining the actual yaw rate and slip angle of a vehicle, a slip angle characteristic is first determined by a driving condition sensor system, a yaw rate sensor and a position determination system. If the slip angle characteristic remains below a threshold value, the actual yaw angle is adjusted to match the actual speed vector angle. Otherwise, the actual yaw angle is determined by a continuous value integration using yaw rate sensor values and the slip angle is calculated as the difference between the yaw angle and the speed vector angle. The slip angle is reliably determined with sufficient accuracy, without the need for additional sensors, if the values of the slip angle increase over several seconds. in addition, the yaw angle is reliably determined over long periods of time and the deviations in the values that occur in the integrating methods are adjusted at frequent intervals.08-21-2008
20110224874METHOD FOR DETERMINING AN ABSOLUTE ROTATIONAL POSITION OF A VEHICLE STEERING COLUMN - A method for determining an absolute rotational position of a vehicle steering column is provided. In one exemplary embodiment, the method determines a relative position of a steering assist motor utilizing a relative position sensor. Thereafter, the method determines the absolute rotational position of the vehicle steering column based upon the relative position of the steering assist motor.09-15-2011
20110224872System And Method To Control Vehicle Steering - A vehicle controlled via a joystick has a turn request mode and a return to center request. While the operator is requesting a turn, steered wheels are turned at a predetermined rate, steering angle continuing to change while the turn request is being applied. When the operator ceases requesting a turn, the return to center mode is invoked: a direction of a virtual wheel of the vehicle is determined and such direction is maintained. A vehicle angular velocity is computed based on vehicle velocity and a virtual steering angle, which is the angle between the direction the virtual wheel is pointing and the longitudinal axis of the vehicle. To maintain the direction of the virtual wheel during a return to center, the virtual wheel is turned at an angular velocity equal in magnitude to the angular velocity of the vehicle and in a direction to return to center.09-15-2011
20110231058Self-centering, Torque-sensing Joint Assembly For A Pallet Truck Power Steering System - A power steering assist system for a hand-steered pallet truck includes a joint assembly having a pivot joint, handle biasing mechanism, and a torque sensing arrangement. The pivot joint includes a pair of needle bearings and pivot pin disposed within a pivot block that provides a flexible connection between a handle and a tiller arm. The handle biasing mechanism includes a cantilevered beam spring and two cam rollers that resists an operator steering force applied to the handle and further, centers the handle with respect to the tiller arm after the force is released. The torque sensing arrangement includes a magnet and a non-contact magnetoresistive (MR) sensor that measures movement of the handle relative to the tiller arm which is used to determine operator steering intent, i.e., the amount of steering force applied to the handle. The MR sensor provides accurate torque measurements regardless of the angle of the tiller arm. The steering assist system further includes a driving unit with a steerable drive wheel, and a servomotor. The amount of steering assist provided by the servomotor to the drive wheel is at least partially determined based on the measured operator steering intent.09-22-2011
20100286872PARKING ASSISTING APPARATUS - The present invention relates to a parking assist apparatus 11-11-2010
20100286870STEERING CONTROLLER - To accurately extract a pulsating component generated due to a cogging torque or a torque ripple to reduce a pulsation, the pulsating component is extracted using a bandpass filter having a variable time constant, and the time constant is set according to a frequency of cogging torque or torque ripple to be extracted. Further, a reference angle for a rotation angle of a motor is preset according to a generation harmonic order of the cogging torque or torque ripple, and the time constant of the bandpass filter is set from a time period required for the motor to rotate by the reference angle.11-11-2010
20100286869METHODS AND SYSTEMS INVOLVING RETURN TORQUE - A method of controlling a motor of a power steering system is provided. The method includes: estimating a scale factor based on a vehicle speed and a hand wheel torque; applying the scale factor to a return command; and generating a motor command signal based on the applying the scale factor.11-11-2010
20100286868ELECTRIC POWER-ASSIST STEERING SYSTEM - An electric power-assist steering system that provides a steering assist control in accordance with the steering angle right after the idle stop to reduce an unpleasant steering feeling and is installed in a vehicle having an idle stop mechanism (engine controller) that automatically performs an idle stop operation in a predetermined condition. The electric power-assist steering system includes a torque sensor, a steering angle sensor for detecting a steering angle relative to a midpoint of a steering angle that is learned, an electric motor whose assist force is controlled based on the steering torque and the steering angle, and a resolver for detecting a rotational angle of the electric motor. A steering angle right after the idle stop is determined based on the steering angle detected by the steering angle sensor right before the idle stop and variation in the rotational angle detected by the resolver during the idle stop.11-11-2010
20130151076MOTOR DRIVEN POWER STEERING TUNABLE BY USER - The motor-driven power steering may include a user selection unit, a driving motor unit, and a control unit that includes a basic current map creating driving torque according to a vehicle speed for controlling the driving motor unit by using a vehicle speed and steering torque input through CAN communication and a sub-current map obtained by reducing the basic current map at a predetermined reduction ratio, creates adjustment torque corresponding to an adjustment signal adjusted by the user selection unit by using the sub-current map, and includes a sub-functional logic adjusting driving torque created by the basic current map by the created adjustment torque, a driving torque compensation map compensating adjustment driving torque adjusted by the sub-functional logic in accordance with the traveling state of a vehicle, and a driving logic that controls the driving motor unit by using compensation driving torque compensated by the driving torque compensation map.06-13-2013
20130151077SYSTEM AND METHOD FOR CONTROLLING ELECTRICALLY-POWERED STEERING APPARATUS OF VEHICLE - A system and a method for controlling an electrically-powered steering apparatus of a vehicle may include a selection switch adapted to select any of a plurality of steering modes, a control switch adapted to change a current for controlling the steering force, a control portion adapted to determine the current according to a signal received from at least one of the selection switch and the control switch and to transmit a control signal according to the determined current, and a drive portion adapted to control the steering force according to the control signal received from the control portion.06-13-2013
20130151078Steering System Having Compensation Command Calibration - A control system for a power steering system is provided. The control system includes an amplitude calculation module and a command module. The amplitude calculation module receives a compensation command. The amplitude calculation module determines a command amplitude that is based on the compensation command. The command module generates a command to the power steering system. The command is based on the command amplitude.06-13-2013
20100292897Vehicle Centering in a Chassis Alignment Stand and Associated Method - A device and method for centering a vehicle in a test stand having at least two pairs of rollers for supporting at least one of the front wheels and the rear wheels of the vehicle, and a measurement system. A controller is connected to the steering system of the vehicle, with which the steering angle of at least one of the front wheels and the rear wheels can be changed in accordance with data of the measurement system.11-18-2010
20100318263VEHICLE DRIVING SUPPORT SYSTEM AND VEHICLE DRIVING SUPPORT METHOD - When an obstacle is sensed on a side of a vehicle, the future position of the vehicle after a prescribed time is predicted. When the predicted vehicle future position reaches a prescribed lateral position in the lane width direction, a decision to start a control is made, and the vehicle is controlled in a direction to prevent it from coming too close to the obstacle. If a state occurs in which the obstacle is sensed after not being sensed (i.e., it is first sensed), a decision to start the control is suppressed.12-16-2010
20120283912SYSTEM AND METHOD OF STEERING OVERRIDE END DETECTION FOR AUTOMATED LANE CENTERING - A method and system may measure one or more vehicle dynamics measurements and activate an automatic vehicle control system based on the one or more measurements. The vehicle dynamics measurements may include a vehicle steering angle measurement, vehicle lane offset measurement, or other vehicle dynamics measurements. The automatic vehicle control system may include an automated lane centering system, lane keeping assist, or other autonomous vehicle steering control system.11-08-2012
20120283911SYSTEM AND METHOD FOR ADJUSTING SMOOTHNESS FOR LANE CENTERING STEERING CONTROL - A method and system may include obtaining a time to complete a lane centering maneuver for a vehicle traveling on a roadway. A lane centering path may be calculated for the maneuver, based on a sensed current heading of the vehicle relative to a sensed center line as determined by the time to complete. A steering adjustment required for the vehicle to execute the maneuver with respect to the calculated lane centering path may be calculated and applied to the vehicle.11-08-2012
20120283915DRIVE CONTROL SYSTEM FOR A VEHICLE AND METHOD - A method of altering a drive parameter of a machine having a drive system that is configured to operate a left side of the machine independently of the right side of the machine. The method includes entering, by a user, a drive parameter alteration mode by actuating a first input, and actuating a second input to alter one or more parameters associated with a controller of the machine.11-08-2012
20120283914VEHICLE STEERING WHEEL CONTROL SYSTEM HAVING INTEGRATED ELECTRONIC CONTROL UNIT - A steering wheel control system and control method for a vehicle are provided. One control system includes a steering wheel and one or more controls actuatable by an operator. The vehicle control system also includes an integrated steering wheel controller having a processor and connected to the one or more controls and to a vehicle computer. The vehicle control system further includes an indicator corresponding to the one or more controls and providing a visual indication of a state of an operation or function associated with the one or more controls.11-08-2012
20120283913SYSTEM AND METHOD FOR ADJUSTING SMOOTHNESS FOR LANE CENTERING STEERING CONTROL - A method and system may calculate a steering adjustment required for a vehicle traveling on a roadway to execute a transition to lane centering maneuver. A steering limit may be selected or calculated in accordance with a desired smoothness level for completing the maneuver. The steering limit may be applied to a steering adjustment to obtain a modified steering adjustment, and the modified steering adjustment may be applied to the vehicle.11-08-2012
20120283910SYSTEM AND METHOD FOR ENHANCED STEERING OVERRIDE DETECTION DURING AUTOMATED LANE CENTERING - A method and system may measure one or more vehicle steering measurements or quantities and calculate one or more expected vehicle steering measurements. The method and system may deactivate an automatic vehicle control system based on the one or more measured vehicle steering measurements and the one or more expected vehicle steering measurements. The vehicle steering measurements may include a vehicle steering angle measurement, vehicle steering torque measurement, or other vehicle dynamics measurements. The automatic vehicle control system may include an automated lane centering system, lane keeping assist, or other autonomous vehicle steering control system.11-08-2012
20120283909SYSTEM AND METHOD FOR POSITIONING A VEHICLE WITH A HITCH USING AN AUTOMATIC STEERING SYSTEM - A system and method is provided for positioning a vehicle with a hitch using an automatic steering system to align the vehicle with an implement so that the implement can be connected to the vehicle. The positions of the vehicle and the implement can be determined directly or indirectly from GPS position information. The known positions of the vehicle and implement are then used to calculate a path for the vehicle to align the vehicle with the implement. The calculated path is then provided to an automatic steering system of the vehicle to steer the vehicle along the path.11-08-2012
20130158800VEHICLE MERGE ASSISTANCE SYSTEM AND METHOD - A merge assistance system for a vehicle. The system includes a camera configured to monitor an area, at least one sensor configured to detect information about at least one moving target object, an electronic control unit having a processor in electronic communication with the camera and the sensor to receive information about the monitored area and the at least one moving target object. The system also includes a computer readable medium storing instructions that cause the processor to receive information about a velocity and an acceleration of the vehicle, determine a merging location based on the information received from the camera, determine a velocity and an acceleration of the at the least one moving target object based on the information from the at least one sensor, identify a merge assist situation, and initiate a merge driving maneuver to control the vehicle during the merge assist situation.06-20-2013
20130158801Controller and Method for Detecting Vehicle Pull - Various embodiments of a controller for a vehicle braking system capable of determining vehicle pull during automated braking, are disclosed. The controller comprises a yaw rate input for receiving a yaw rate signal indicative of a yaw rate of the vehicle; a stability input for receiving a stability signal from a stability sensor of the vehicle; a deceleration input for receiving a deceleration signal indicative of an automated deceleration request and a brake output for transmitting a brake control signal. The controller includes control logic to determine vehicle pull based on the yaw rate signal and the stability signal.06-20-2013
20130158802Steering System for Crawler Track Machine - A crawler track machine such as a cold planar milling machine may incorporate a steering system having multiple steering modes including coordinated steering modes as well as an improved crab mode. Orientations of front and rear pairs of crawler tracks may be managed via a linear actuator control system adapted to dynamically adjust lengths of front and rear tie rods. In one disclosed embodiment, the machine may include at least a coordinated four-track steering mode, an independent front track steering mode, and a crab mode. The crab mode may involve use of automated linear actuators on the tie rods to assure that all tracks remain substantially parallel to one another, and may involve the use of lookup tables to coordinate actuator movements in response to individual parallel track angle demands as a function of steering inputs.06-20-2013
20130158803TRAILER BACKING AID USING GPS MAPPING AND CAMERA IMAGE DISPLAY - A method of controlling a vehicle and trailer assembly comprises initiating an input mode for a trailer backing system. A first set of data points, a second set of data points, and a third set of data points are input into the trailer backing system. The input mode for the trailer backing system is ended. An intended backing path is determined based upon the first, second, and third set of data points.06-20-2013
20130158804System and method for controlling slip - A system for automated control of a ground-engaging traction device includes sensors to indicate a speed of the ground-engaging traction device, an acceleration of the machine, and a pitch rate of the machine. A controller determines a drive acceleration based upon the speed, and a ground acceleration based upon the acceleration and the pitch rate. The controller determines a command signal at least in part based upon an operator input command signal and a difference between the drive acceleration and the ground acceleration. A method is also provided.06-20-2013
20130158806VEHICLE STEERING SYSTEM - When a vehicle is quickly steered while the vehicle is travelling at an extremely low speed, a load on an in-vehicle power supply is reduced without deteriorating a steering feeling by reducing a motor driving current. A steering speed is compared with a threshold. When the steering speed is lower than the threshold, the process proceeds to step S06-20-2013
20130158805Wheel Speed Velocity Variation Scaling System - A control system for a power steering system is provided. The control system includes a scaling module for calculating a scale factor based on a wheel frequency. The control system also includes a command module that evaluates a wheel disturbance based on a wheel speed and that determines a wheel disturbance cancel amount based on the wheel speed. The command module generates an assist command to the power steering system based on the wheel disturbance cancel amount and the scale factor.06-20-2013
20130158807MULTI-DIRECTION VEHICLE CONTROL SENSING - A vehicle includes a first control configured to operate the vehicle from a first operator position facing a front of the vehicle and a second control configured to operate the vehicle from a second operator position facing a rear of the vehicle. The vehicle further includes a processor configured to monitor for an operator presence in the first operator position or the second operator position and receive a vehicle operating request, wherein the operator presence is monitored independent of receiving the vehicle operating request. The processor is further configured to enable either the first control or the second control and select a vehicle operating parameter associated with the vehicle operating request, wherein the vehicle operating parameter varies according to which control is enabled.06-20-2013
20130184937VEHICULAR POWER SUPPLY SYSTEM - In a vehicular power supply system, a main battery supplies electric power to both main machine drive circuit, which drives a main motor for driving a vehicle, and a steering assist drive circuit, which drives a steering assist motor of a power steering apparatus. A main machine switching circuit, which is capable of shutting off power supply to the main machine drive circuit, and an auxiliary machine switching circuit, which is capable of shutting off power supply to the steering assist drive circuit are provided in parallel. As long as the auxiliary machine switching circuit is turned on, power supply to the steering assist drive circuit is continued even when the main machine switching circuit is turned off.07-18-2013
20130184936VEHICLE ROLLOVER MITIGATION SYSTEM - The present disclosure provides a system and a method for mitigating vehicle rollovers, the method comprises monitoring a vehicular tilt and sensing a vehicular rollover in a particular direction, through a tilt sensor. Further, the system determines an occurrence of a rollover according to a calculated tilt threshold, through a central processing unit. Steering the vehicle in the sensed direction of the rollover, accelerating the vehicle in the same direction, and braking the vehicle upon sensing a decrease in the rollover, all being controlled through a controller, enables the vehicle to eventually stabilize and return to track.07-18-2013
20130184938GPS-BASED MACHINE VISION ROADWAY MARK LOCATOR, INSPECTION APPARATUS, AND MARKER - An apparatus for locating, inspecting, or placing marks on a roadway. The apparatus includes a GPS-based machine vision locator for sampling discrete geographical location data of a pre-existing roadway mark evident on the roadway. A computer may determine a continuous smooth geographical location function fitted to the sampled geographical location data. And a marker is responsive to the GPS-based locator and geographical location function for replicating automatically the pre-existing roadway mark onto the roadway. The apparatus is typically part of a moving vehicle. A related method is disclosed for locating, inspecting, and placing marks on a resurfaced roadway. A similar apparatus can be used to guide a vehicle having a snow plow along a snow-covered roadway, or a paving machine along an unpaved roadway surface.07-18-2013
20110288727CONTROL DEVICE FOR ASSISTING A PARKING MANEUVER - A control device is described for assisting the parking maneuver of a vehicle, including an interface to a sensor unit for detecting a boundary of a parking space in the surroundings of the vehicle, including an arithmetic unit for determining a trajectory into a parking position in the parking space, wherein the arithmetic unit is configured to calculate a trajectory into the parking position, taking into account a potential extension of parts of the body of the vehicle beyond the boundary of the parking space.11-24-2011
20080201040STEERING APPARATUS - This steering apparatus is capable of changing and controlling a ratio of a turning angle of a steering wheel to an operation amount of an operation member, wherein the ratio is reduced when an operation speed of the operation member is higher than a predetermined operation speed; and if the operation speed is reduced thereafter, then the reduced ratio is maintained.08-21-2008
20110313621POWER STEERING APPARATUS AND METHOD - An apparatus for use in turning steerable vehicle wheels includes a power steering motor assembly connected with the steerable vehicle wheels. An engine driven pump connected with the power steering motor assembly is driven by an engine of the vehicle to supply fluid under pressure to the power steering motor assembly. A controller increases engine speed when the vehicle is motionless and a steering wheel is rotated. A method for controlling the speed of an engine to provide a predetermined steering assist to a steering apparatus includes determining if the vehicle is motionless and determining if the steering wheel is being rotated. The speed of the engine is increased if the vehicle is motionless and the steering wheel is being rotated to provide the predetermined steering assist to the steering apparatus.12-22-2011
20110313620Steering control apparatus - A VGRS device checks whether assist control of an EPS device for assisting steering operation of a steering wheel is being stopped. If the assist control of the EPS device is being stopped, a speed increase ratio is determined so that the rotation angle of the output shaft is less than the rotation angle of the input shaft. A VGRS motor is controlled and driven based on a determined speed increase ratio. Thus, steering operation of the steering wheel can be controlled appropriately so that the steering operation of the steering wheel can be continued with relatively small torque. It is less likely that a driver will erroneously feel that the steering wheel is locked.12-22-2011
20130190981ROADWAY MARK DATA ACQUISITION AND ANALYSIS APPARATUS, SYSTEMS, AND METHODS - An apparatus, system, and method for determining characteristics of a roadway mark at a remote location. The system includes a vehicle having at least one imager for producing image data containing at least one actual roadway mark evident on a roadway surface. A GPS antenna is mounted on the vehicle. A GPS receiver is responsive to the GPS antenna for determining a GPS location of the GPS antenna. An apparatus responsive to the imager and the GPS receiver determines a GPS location of the roadway mark and filters and compresses the image data, the filtered and compressed image data containing the image data of the roadway mark. An apparatus communicates the filtered and compressed image data to the remote location for analyzing the roadway mark characteristics from the image data.07-25-2013
20130190982LANE DEPARTURE CONTROL SYSTEM - A lane departure control system is provided which steers a vehicle toward the center of a lane of a road at a first yaw rate by a controlled angle when the vehicle is determined to be about to deviate from the lane. Afterwards, when the vehicle is determined to be traveling toward a virtual line defined near a lane boundary, the system steers the vehicle by a correction angle so as to orient the vehicle parallel to the virtual line at a second yaw rate. The system changes the value of the first yaw rate at a first rate within the controlled angle and also changes the value of the second yaw rate at a second rate within the correction angle. An absolute value of the second rate is set smaller than that of the first rate, thereby minimizing an undesirable physical load on a driver of the vehicle.07-25-2013
20130190984LANE DEPARTURE CONTROL SYSTEM - A lane departure control system is provided which works to control a lane departure of a vehicle using a steering mechanism. The lane departure control system determines a deviation angle between a direction in which the vehicle is pointing and a boundary line of a lane. When the vehicle is expected to unintentionally leave the lane, the lane departure control system calculates an assist angle between a target angular direction of the vehicle and the boundary line and outputs a control signal to the steering mechanism to steer the vehicle in a direction away from the boundary line toward the center of the lane by the sum of the deviation angle and the assist angle. The lane departure control system determines the assist angle as a function of the deviation angle. Such calculation results in a decreased load on the system in controlling the steering of the vehicle.07-25-2013
20130190985LANE DEPARTURE CONTROL SYSTEM - A lane departure control system is provided which works to control a lane departure of a vehicle. When the vehicle is expected to unintentionally leave a lane of a road, the system steers the vehicle toward the center of the lane at a first yaw rate. Afterwards, when the vehicle is determined to be traveling toward a virtual line extending parallel to the boundary line, the system directs the vehicle parallel to the virtual line at a second yaw rate. The system keeps an absolute value of the first yaw rate below a first upper limit and also keeps an absolute value of the second yaw rate below a second upper limit that is less than the first upper limit. This provides an improved comfortable ride to a driver of the vehicle when the vehicle is directed parallel to the virtual line.07-25-2013
20130190986VEHICLE AND STEERING APPARATUS - A vehicle has a rear wheel drive device for driving rear wheels independently of a front wheel drive device. A drive mode control unit performs at least one of a first switching operation for switching between a front-wheel-only-drive mode and a rear-wheel-only-drive mode, a second switching operation for switching between a composite drive mode and the rear-wheel-only-drive mode, and a third switching operation for switching between the composite drive mode and the front-wheel-only-drive mode. When the drive mode control unit performs any one of the first switching operation, the second switching operation, and the third switching operation, an assistive force controller of the steering apparatus changes a control process for controlling a steering assistive force.07-25-2013
20120029773CONTROL APPARATUS FOR VEHICLE - Lane keeping control is ended in accurate timing which does not give an uncomfortable feeling to a driver. In a vehicle 02-02-2012
20120029772STEERING CONTROL APPARATUS - A steering control apparatus (02-02-2012
20120029771Steering control from scanned wheel information - A method for automatically controlling the extension and steering of left side and right side wheels (02-02-2012
20130197758VEHICLE AUTOMATIC STEERING CONTROL APPARATUS - A vehicle control apparatus that for automatic steering control that reduces occupant discomfort and stress is provided. A lane width of a subject lane and a current in-lane ratio are detected. If an off-lane obstacle which may place stress on the occupant is present within a prescribed area, a relative position between each off-lane obstacle and the vehicle is determined. A target in-lane ratio is determined based on the relative position. Specifically, when the off-lane obstacles are present on both the left and right sides of the subject lane, the target in-lane ratio is such that lateral distances to both off-lane obstacles are equal. When the off-lane obstacle is present on only one of either the left or right of the subject lane, the target in-lane ratio is set such that a lateral position away from the off-lane obstacle by a lateral distance set in advance is the target lateral position.08-01-2013
20130197759ENGINE RESTART CONTROL DEVICE - There is provided an engine restart control device. A controller is configured to stop an engine which is adapted to generate a driving force for running a vehicle when a predetermined stop condition is met and configured to restart the engine when a predetermined restart condition is met after stopping the engine. A steering torque detector is configured to detect a steering torque of a steering handle which is adapted to be operated by a driver. A reaction force generator is configured to give a steering reaction force to the steering handle. The controller restarts the engine when the steering torque detected by the steering torque detector exceeds a predetermined threshold and control the reaction force generator to give the steering reaction force to the steering handle until the steering torque detected by the steering torque detector exceeds the predetermined threshold.08-01-2013
20130197760SENSOR CONFIGURATION FOR A MATERIALS HANDLING VEHICLE - A materials handling vehicle includes a power unit, a load handling assembly, at least one first obstacle detector, and at least one second obstacle detector. The at least one first obstacle detector is mounted at a first location on the power unit to detect an object located along a path of travel of the power unit beyond a non-detect zone of the at least one first obstacle detector. The at least one second obstacle detector is mounted at a second location on the power unit, spaced from the first location in a first direction, and is capable of detecting an object in the non-detect zone of the at least one first obstacle detector.08-01-2013
20130197757VEHICLE STEERING CONTROL SYSTEM AND METHOD - A control method for an automotive vehicle steering system including an electric motor providing a steering force on a steering mechanism. The method comprises providing at least three steering system MAPs which control an electric current supplied to the electric motor. Wherein if a new MAP is selected when at least two prior selected MAPs are blending, the MAP comprising the greatest component of a blend at the time the new MAP is selected is decreased at a faster rate than the MAP comprising the lesser component.08-01-2013
20120296522DRIVING SUPPORT SYSTEM - A driving support system includes a first, a second, and a third imaging units capturing images of front view, right rear view, and left rear view from the vehicle, respectively, a turn signal indicator operation detection unit detecting an operation state of a turn signal indicator of the vehicle, a steering control unit controlling a steering operation of the vehicle, a lane keeping support unit performing driving support for lane keeping, and a lane change support unit performing a lane change by instructing the lane keeping support unit to cancel lane keeping based on the the image of the rear view from the vehicle when an operation of the turn signal indicator is detected, and withholding a lane change and wait until there is no obstructing vehicle and then cancelling withholding of the lane change when it is determined that there is no obstructing vehicle.11-22-2012
20130204493DUPLICATED PROCESSING IN VEHICLES - The present disclosure describes a vehicle implementing one or more processing modules. These modules are configured to connect and interface with the various buses in the vehicle, where the various buses are connected with the various components of the vehicle to facilitate information transfer among the vehicle components. Each processing module is further modularized with the ability to add and replace other functional modules now or in the future. These functional modules can themselves act as distinct vehicle components. Each processing module may hand-off processing to other modules depending on its health, processing load, or by third-party control. Thus, the plurality of processing modules helps to implement a middleware point of control to the vehicle with redundancy in processing and safety and security awareness in their applications.08-08-2013
20120072076HYBRID UTILITY VEHICLE - A hybrid utility vehicle has a vehicle body and at least first and second driving wheels, each driving wheel has two wheels provided on opposite sides of the vehicle. Each of the wheels is drivable by a drive unit, whereby the speed of each wheel may be adjusted independently of the speed of the other wheels, thereby enabling adjustment of the relative position between a wheel of the first set of driving wheels (03-22-2012
20120072075STEERING CONTROL DEVICE OF AUTONOMOUS VEHICLE, AUTONOMOUS VEHICLE HAVING THE SAME AND STEERING CONTROL METHOD OF AUTONOMOUS VEHICLE - Disclosed are a steering control device of an autonomous vehicle, an autonomous vehicle having the same, and a steering control method of an autonomous vehicle. The steering control method comprises receiving a position of an autonomous vehicle, and a first heading angle of the autonomous vehicle with respect to the north; calculating a second heading angle of the autonomous vehicle toward a tracking waypoint based on the position of the autonomous vehicle, and computing a rotation radius of the autonomous vehicle with respect to the tracking waypoint; calculating a yaw rate based on a speed of the autonomous vehicle and the computed rotation radius, and generating a steering command corresponding to the calculated yaw rate; and compensating for the steering command based on the first and second heading angles.03-22-2012
20120303217METHOD FOR OPERATING AN AUTOMOBILE AND AN AUTOMOBILE WITH AN ENVIRONMENTAL DETECTION DEVICE - A method for operating an automobile includes the steps of a) detecting an object in an environment of the automobile with an environmental detection device; b) evaluating a collision risk of the automobile with the object; and c) depending on the evaluation, adjusting the steering angle of the automobile with a steering angle actuating device. The steering wheel is decoupled with the decoupling device depending on the adjustment performed in step c), so that the rotation of the steering wheel caused by the adjustment of the steering angle is smaller than if the same adjustment were made when the steering wheel is not decoupled.11-29-2012
20120095649CONTINUOUS CORRECTION FOR STEERING WHEEL ANGLE OFFSET - A system and method of continuously updating a steering wheel angle offset value to adapt to changing road conditions. A vehicle control system receives a plurality of vehicle parameter values each from a different vehicle sensor. The system then calculates a plurality of observed steering angle values, each using a different calculation method based on one or more of the plurality of vehicle parameter values. The plurality of observed steering angle values are then used to calculate a vehicle steering angle. A steering wheel angle offset value is then calculated based on the steering wheel angle and the calculated vehicle steering angle. The steering wheel angle offset value and the steering wheel angle are used to control the vehicle's steering system.04-19-2012
20120095648MOTOR VEHICLE STEERING SYSTEM - A motor vehicle steering system includes a knob that is for rotating a wheel of a steering member, has a knob center, and is supported rotatably around the knob center by the wheel. A control unit sets a predetermined period after detection of gripping on the knob by a grip detection device as a transfer period for transfer from reaction force application only by a wheel reaction force actuator to reaction force application only by a knob reaction force actuator. In the transfer period, the knob reaction force is increased with time and the wheel reaction force is reduced with time.04-19-2012
20130211675METHOD AND STEREO VISION SYSTEM FOR MANAGING THE UNLOADING OF AN AGRICULTURAL MATERIAL FROM A VEHICLE - A stereo imaging device on a propelled portion of the receiving vehicle collects image data. A container identification module identifies a container perimeter of a storage portion in the collected image data. A spout identification module is adapted to identify a spout of the harvesting vehicle in the collected image data. An alignment module is adapted to determine the relative position of the spout and the container perimeter and to generate command data to the propelled portion to steer the storage portion in cooperative alignment such that the spout is aligned within a central zone or target zone of the container perimeter. A steering controller is associated with a steering system of the propelled portion for steering the receiving vehicle in accordance with the cooperative alignment.08-15-2013

Patent applications in class Steering control

Patent applications in all subclasses Steering control