Class / Patent application number | Description | Number of patent applications / Date published |
701110000 | Speed, acceleration, deceleration | 89 |
20080201064 | Idle Stop System - An idle stop controller connects to a vehicle computer so as to implement an idle stop on request of the driver from a signal derived from a foot brake, a parking brake, or a voice-activated switch. It also implements an engine restart on request of the driver, and this can be done in several ways. | 08-21-2008 |
20080270010 | Method and apparatus for detecting engine racing - An engine racing detecting apparatus detects engine racing of an engine of a vehicle. The engine racing detecting apparatus includes a rotation-speed acquiring unit, a clutch-state acquiring unit, and an engine-racing determining unit. The rotation-speed acquiring unit acquires a rotation speed of the engine. The clutch-state acquiring unit acquires clutch state indicative of whether a clutch of the engine is ON or OFF. The engine-racing determining unit determines whether the engine races based on the rotation speed when the clutch state indicates that the clutch is OFF. | 10-30-2008 |
20090112448 | Throttle valve control system for internal combustion engine - A throttle valve control system for an internal combustion engine which controls an opening of a throttle valve of the engine so that the opening coincides with a target opening. A regulation value of a change amount of the throttle valve opening is set according to at least a temperature parameter indicative of a temperature of the engine. The target opening is set within a range defined by the regulation value. An upper limit value and a lower limit value of the regulation value is set according to the temperature parameter, and a transition control is performed wherein the regulation value is set according to an elapsed time period after start of the engine so as to change from the lower limit value to the upper limit value. | 04-30-2009 |
20090138183 | Adaptive Positioning Method for an Actuator - In an adaptive positioning method for an actuator, in particular, for a throttle butterfly on an internal combustion engine, during the adaptive positioning method, after a request for a set position and selection of a pilot value a corresponding pilot position for the actuator is adopted. The pilot position is adjusted until said position corresponds to the requested set position. The control value actually required or this set position is subsequently measured and recorded as corrected pilot value for the corresponding set position. | 05-28-2009 |
20090143961 | ROAD VEHICLE CONTROL METHOD - A control method of a road vehicle; the control method includes the steps of: detecting the position of an accelerator control which is displaced along a predetermined stroke; using the position of the accelerator control to control the generation of a torque generated by the engine of the road vehicle so that the torque is generated according to the position of the accelerator control; detecting the current driver's ability by means of a driving ability recognition device; and limiting the generation of torque according to the current driver's ability. | 06-04-2009 |
20090198438 | CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE AND METHOD OF CONTROLLING INTERNAL COMBUSTION ENGINE - In an engine ECU ( | 08-06-2009 |
20090299613 | Engine Speed Control System for Work Vehicle - The engine speed control system for a work vehicle has a foot accelerator controller for carrying out foot accelerator control based on a pedal sensor, a hand accelerator controller for carrying out hand accelerator control based on a lever sensor, a manually operated input device, storage means for storing a predetermined engine speed, and a constant rotation controller for carrying out constant rotation control in which the engine speed stored in the storage means is used as the target rotational speed on the basis of an input to the input device. The constant rotation control is carried out when the input device has been operated in the case that the engine speed that corresponds to the output of the lever sensor is greater than an idling speed, and the constant rotation control is terminated when the input device is operated in the case that the engine speed that corresponds to the output of the lever sensor is equal to or less than the idling speed. | 12-03-2009 |
20100004848 | FUEL SAVER SPEED CONTROL - Embodiments of the invention are used to provide a Fuel Saver Speed Control (FSSC) system that facilitates vehicle speed control while maximizing fuel economy. For instance, when the vehicle traverses an uphill section of the road, the Fuel Saver Speed Control reduces the vehicle's fuel consumption by controllably reducing engine power output within the boundaries of activated FSSC settings. | 01-07-2010 |
20100049426 | METHOD FOR DETERMINING AN UNCONTROLLED ACCELERATION OF AN INTERNAL COMBUSTION ENGINE - In a method for determining an uncontrolled acceleration of an internal combustion engine, a valve opening cross section is allocated to each load state of the internal combustion engine. In the event that a controller value is outside a limit range, an uncontrolled acceleration of the internal combustion engine is thereby detected. | 02-25-2010 |
20100161202 | INTAKE AIR AMOUNT CONTROL SYSTEM AND METHOD FOR INTERNAL COMBUSTION ENGINE - An intake air amount control system for an internal combustion engine, which is capable of reducing energy for driving a variable intake lift mechanism, and properly controlling an intake air amount during an auto cruise operation. The intake air amount control system for the engine holds a lift of an intake valve at a predetermined lift by holding a target lift at the predetermined lift when it is determined that a vehicle is in the auto cruise operation. This reduces energy required for an intake lift actuator which drives the variable intake lift mechanism, and suppresses heat generated by a motor of the intake lift actuator. Further, during the auto cruise operation, by changing a throttle valve opening, the intake air amount is properly controlled. | 06-24-2010 |
20100161203 | CONTROLLER FOR INTERNAL COMBUSTION ENGINE - When a driving region of an engine is in a specified self-ignited combustion region, a valve timing is controlled in such a manner as to establish a negative valve overlap period in which an exhaust valve and an intake valve are closed. During the negative valve overlap period, a direct injection is performed to reform a fuel. After the direct injection, a port injection is performed to control an output. Thereby, a self-ignited combustion control is performed. During the self-ignited combustion control, a fuel reform degree of the fuel injected by the direct fuel injection is detected, and a self-ignited combustion condition in a present combustion cycle is estimated based on the fuel reform degree detected in the present combustion cycle. A fuel injection quantity of the intake port fuel injection is corrected according to the estimated self-ignited combustion condition in order to stabilize the self-ignited combustion condition. | 06-24-2010 |
20100168988 | FUEL INJECTOR FLOW SHIFT COMPENSATION IN INTERNAL COMBUSTION ENGINE - A method of operating a fuel injected multi-cylinder internal combustion engine includes establishing a flow shift compensation term by comparing a pre-flow shift value with a post-flow shift value. The pre-flow shift value is indicative of a pre-flow shift fueling signal duration linked with an engine test speed, and the post-flow shift value is indicative of a post-flow shift fueling signal duration linked with the engine test speed. The method further includes controlling an engine speed via outputting fueling signals from a digital engine speed governor to a plurality of fuel injectors of the internal combustion engine. The fueling signals have a fueling signal duration based at least in part on an electronically stored fueling signal value and the flow shift compensation term a multi-cylinder internal combustion engine includes a control system configured to control an engine speed via outputting fueling signals having fueling signal durations based at least in part on electronically stored fueling signal values modified according to the flow shift compensation term. | 07-01-2010 |
20100168989 | Control Method and Device For Engine - A control method and a control device of an engine are introduced. During the process of the engine controlling, the control unit does the adaptive learning for the actual target value of the feedback of different aims, and following the dynamic spectrogram generation strategy optimizing compares the adaptively learning parameter of the same working status and the same time with the basic spectrogram parameter. If the compared result doesn't meet the condition, then keep the basic spectrogram parameter. And if it meets the condition, then the engine generates the dynamic spectrogram parameter. Based on the dynamic spectrogram combination strategy, the engine combines the basic spectrogram parameter and the dynamic spectrogram parameter generated to the combined spectrogram parameter instead of the basic spectrogram parameter. | 07-01-2010 |
20110035135 | ACTIVE COAST AND CRUISE CONTROL SYSTEM AND METHODS - An engine control system of the present disclosure comprises a target speed module and a coupling module. The target speed module determines a target speed of a vehicle based on a speed of the vehicle and at least one of an accelerator input and a speed control input. The coupling module controls coupling of an engine system and a drive system of the vehicle based on the speed and the target speed. The engine system transfers torque to the drive system when coupled and does not transfer torque to the drive system when decoupled. In other features, the engine control system further comprises a torque control module that controls torque output by the engine system based on the coupling of the engine system and the drive system, the speed, and the target speed. | 02-10-2011 |
20110035136 | CONTROL DEVICE AND CONTROL METHOD FOR VEHICLE - An engine ECU executes a program including: a step of estimating the occluded amount of NOx if an engine is self-rotating and a catalyst temperature is equal to or higher than a predetermined temperature Ta( | 02-10-2011 |
20110276256 | System and method for reducing powertrain disturbances based on system energy - A control system for a powertrain includes an energy determination module and a speed control module. The energy determination module determines a rotational energy input to the powertrain during a first period of a negative lash event of the powertrain. The speed control module selectively limits an increase in a rotational speed of the engine to a first predetermined rate based on the rotational energy during a second period of the negative lash event following the first period. The rotational energy is based on an acceleration rate of the rotational speed, and the speed control module limits the increase when the acceleration rate is greater than a predetermined acceleration rate. The speed control module further selectively increases the rotational speed at a second predetermined rate during a third period beginning at an end of the second period. A related method is also provided. | 11-10-2011 |
20120116656 | Vacuum Boost For Vehicle Braking - Power brakes are typically vacuum assisted, with the vacuum provided from the intake manifold. If the engine is commanded to operate for a long period at a condition with low intake manifold vacuum, the vacuum within the brake booster may drop to a level which is marginal or insufficient for a present or subsequent braking operation. To ensure sufficient vacuum in the intake manifold to provide to the brake booster, the engine may be commanded to operate at a condition to increase intake manifold vacuum by one of: adjusting cam timing, increasing engine speed, and increasing EGR. In the case of a stop-start vehicle, the engine speed is increased from zero to a condition that provides the desired vacuum. | 05-10-2012 |
20120123664 | ELECTRONIC DIGITAL GOVERNOR AND METHOD OF ASSEMBLY - An electronic digital governor assembly includes a case, a printed circuit board housed within said case, the printed circuit board having control circuitry configured for controlling at least one parameter of an energy production device, and a user interface including a digital display for displaying a value of the at least one parameter and at least one button for selectively adjusting the value. | 05-17-2012 |
20120123665 | IN-VEHICLE DISPLAY FOR IMPROVING FUEL ECONOMY - A visual feedback system for a vehicle including an engine, includes an operating control for varying the engine's speed. Connected to the engine, an engine acceleration reporter reports an amount of acceleration of the engine. A creation control being linked to both the engine acceleration reporter and the operating control enables the creation of images on a visual display according to a variation in the engine speed. Accordingly, the creation control creates a pendulum image within a sector of a circle, with the pendulum image swinging in response to the amount of acceleration being reported by the engine acceleration reporter. | 05-17-2012 |
20120215428 | VEHICLE SPEED SIGNAL FALSIFICATION DETECTION APPARATUS, VEHICLE SPEED LIMITING APPARATUS, VEHICLE SPEED SIGNAL FALSIFICATION DETECTION METHOD, AND VEHICLE SPEED LIMITING METHOD - A vehicle speed signal falsification detection apparatus has a control unit incorporating a computer. The control unit calculates a vehicle speed according to a pulse signal proportional to the rotational speed of a drive wheel and also calculates a simulated vehicle speed according to a pulse signal proportional to the rotational speed of a driven wheel. Then, the control unit determines, on the basis of the comparison between the vehicle speed and the simulated vehicle speed, whether a vehicle speed signal has been falsified. When the control unit determines that the vehicle speed signal has been falsified, then the control unit outputs a falsification detection signal to another control unit so as to suppress the output of an engine. | 08-23-2012 |
20120221228 | VEHICLE CONTROL SYSTEM - In a vehicle control system that obtains an index based on a running condition of a vehicle and changes a running characteristic of the vehicle according to the index, includes index setting means for making a change in the index in response to a change in the running condition in a direction toward crisp running of the vehicle, faster than a change in the index in response to a change in the running condition in such a direction as to reduce crispness with which the vehicle is running. | 08-30-2012 |
20120271535 | METHOD FOR MANAGING THE AUTOMATIC STOPPAGE OF AN AUTOMOBILE - A method including: a) determining a value representative of temperature of exhaust gases flowing in an exhaust duct of an engine upstream from a turbine; b) comparing the representative value with a predetermined threshold value; c) if the representative value is higher than the threshold value, initiating timing-out of a first time delay during which a) and b) are repeated; d) if the representative value is lower than the threshold value, initiating the timing-out of a second time delay during which a) and b) are repeated; e) if the first time delay has elapsed and the representative value is higher than the threshold value, preventing the automatic stoppage of the engine; f) if the second time delay has elapsed and the representative value is lower than the threshold value, authorizing the automatic stoppage of the engine and resetting the measure of the timing-out of the first time delay. | 10-25-2012 |
20130030673 | CONTROL DEVICE AND CONTROL METHOD FOR VEHICLE - An electronic control unit executes torque suppression control for reducing engine torque at the time of strong accelerator operation on the basis of an execution condition that a period of time elapsed from when an ignition switch is turned on is shorter than a prescribed period of time. By so doing, the torque suppression control is executed only when the elapsed period of time is short, a vehicle is still running in a parking lot and it is less likely that a driver performs accelerator operation with the intention to suddenly accelerate the vehicle; whereas, when the elapsed period of time is longer than a certain period of time and the vehicle is presumably running on an ordinary road, the torque suppression control is not executed, and acceleration of the vehicle along with the driver's intention is allowed. | 01-31-2013 |
20130030674 | VEHICLE CONTROL APPARATUS - Provided is a vehicle control apparatus that can prevent the drivability from being deteriorated. The vehicle control apparatus has an ECU that determines an acceleration/deceleration is caused by the disturbances and determines the control permission condition is not established, when an acceleration calculated by the variation of the wheel rotation speed detected by the wheel rotation speed sensor is more than or equal to a third deceleration threshold value, or less than or equal to a second deceleration threshold value. Therefore, the vehicle control apparatus can prohibit the reduction control of the driving force and can eliminate an influence of the variation of the wheel rotation speed caused by the disturbances when an unreasonable variation of the wheel rotation speed is detected as the acceleration, even under the condition that the vehicle travels on an extremely uneven road surface or a slippery road surface, thereby appropriately determining the deceleration of the vehicle. As a result, the vehicle control apparatus can selectively execute or not execute the reduction control to reflect the intention of the driver, thereby preventing the drivability from being deteriorated. | 01-31-2013 |
20130030675 | VEHICLE CONTROL APPARATUS - Provided is a vehicle control apparatus that can prevent the drivability from being deteriorated. The vehicle control apparatus has an ECU which determines, when the control permission condition is not established, not to execute the reduction control in the case that the accelerator opening degree is smaller than or equal to the accelerator threshold value or the vehicle speed is smaller than or equal to the vehicle speed threshold value, even if a depression of an accelerator pedal is detected and a depression of a foot brake pedal is detected. Therefore, the vehicle control apparatus can stop the torque reduction control to prevent the reduction of the engine output contrary to the intention of the driver in the case that an impact to the vehicle is small such that a load more than necessary is not applied to the vehicle even if the accelerator pedal and the brake pedal are both depressed by the driver. As a result, the vehicle control apparatus can improve the operability of the vehicle in the situations such as hill start and overcoming steps, thereby preventing the drivability from being deteriorated. | 01-31-2013 |
20130030676 | OUTPUT CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE AND OUTPUT CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE - The present invention concerns an output control device for an internal combustion engine for generating a drive force of a vehicle. The output control device includes a braking request detection sensor for detecting whether or not a braking request operation has been performed, and a controller programmed to calculate a braking operation time from the start of the braking request operation, and limit an output of the internal combustion engine when the braking operation time becomes longer than a predetermined time. | 01-31-2013 |
20130035843 | VEHICLE CONTROLLER - When a computer determines that an accelerator pedal and a brake pedal are simultaneously stepped based on the signals from the accelerator position sensor and a brake switch, the first switch is turned off so that the accelerator sensor signal which will be transmitted into the computer is compulsorily made zero. A throttle-position command value which will be transmitted from the computer into a throttle actuator is reduced to a value corresponding to the idling state. If an engine output is not reduced, the computer turns off a second switch so that a throttle actuator is de-energized. A throttle valve is compulsorily brought into a position corresponding to an idling state by a biasing force of a throttle return spring. | 02-07-2013 |
20130035844 | OUTPUT CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE AND OUTPUT CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE - The present invention concerns an output control device for an internal combustion engine for generating a drive force of a vehicle. The output control device includes a braking request detection sensor for detecting whether or not a braking request operation has been performed, and a controller programmed to limit an output of the internal combustion engine when the braking request operation is started, completely lift output limitation of the internal combustion engine over a predetermined limitation lifting time when the braking request operation is finished and shorten the limitation lifting time when a predetermined condition holds. | 02-07-2013 |
20130096808 | METHOD FOR CONTROLLING AN ENGINE FOR A MOTOR VEHICLE - A method for controlling the operation of an engine of a vehicle is disclosed in which a torque request signal supplied to control the supply of torque from the engine is adaptively modified based upon a desired maximum acceleration limit for the currently engaged gear and variations in the sum of forces resisting motion of the vehicle. | 04-18-2013 |
20130131965 | DRIVE SYSTEM FOR AN AUTOMOBILE AND METHOD FOR CONTROLLING A COMBUSTION ENGINE - A drive system for an automobile includes a combustion engine, a friction clutch, a multistep gearbox, a controller for controlling the combustion engine based on load lever position, clutch position, gear input shaft rotation speed, gear output shaft rotation speed, engaged gear stage, vehicle speed and/or vehicle acceleration, with a sensor connected with the controller determining a position of the friction clutch. A method for controlling this combustion engine includes the steps of receiving or generating with the controller information about a gear stage change, a clutch position change, a predetermined minimum vehicle speed and-or a predetermined maximum vehicle acceleration, and adjusting the rotation speed of the combustion engine in response to the received or generated information. This approach provides a particularly smooth and comfortable gear stage change. | 05-23-2013 |
20130151126 | DEVICE AND METHOD FOR OPERATING A HAND-HELD WORKING APPARATUS - A hand-held working apparatus has an internal combustion engine having a crankshaft which is driven in rotation. The crankshaft drives at least one tool of the working apparatus via a centrifugal clutch. The working apparatus has a device for determining the speed of the internal combustion engine and a control device which controls the internal combustion engine. It is provided that the profile of the speed of the internal combustion engine is evaluated by the control device, and that the engagement speed of the centrifugal clutch is determined from the profile of the speed of the internal combustion engine. A method of operation is also provided. | 06-13-2013 |
20130166181 | VEHICLE CONTROL SYSTEM - A vehicle control system includes an engine control device, an auxiliary control device adapted to control an auxiliary driven by power of an engine, a device for estimating a plurality of drive patterns for controlling the auxiliary, a fuel consumption rate relating value calculation device, and a selection device. The fuel consumption rate relating value calculation device calculates fuel consumption rate relating values of the engine required to drive the auxiliary by the engine according to the respective estimated plurality of drive patterns by use of characteristic data of the engine. The selection device selects a single drive pattern for driving the auxiliary based on the estimated plurality of drive patterns by use of the calculated fuel consumption rate relating values. | 06-27-2013 |
20130166182 | REGENERATIVE CONTROL DEVICE, HYBRID VEHICLE,REGENERATIVE CONTROL METHOD, AND COMPUTER PROGRAM - In a hybrid vehicle, a computation formula is stored for calculating a fuel cost improvement effect rate from an engine rotational speed and a request torque in each of various conditions while a rotating shaft of the engine and a rotating shaft of the electric motor have been connected to each other during deceleration of the hybrid vehicle. When a calculated fuel cost improvement effect rate satisfies a predetermined condition, the hybrid vehicle is controlled to perform a regenerative power generation while a rotating shaft of the engine and the rotating shaft of the electric motor are connected to each other. | 06-27-2013 |
20130173141 | ACCELERATION SHOCK REDUCTION CONTROL DEVICE, AND METHOD AND PROGRAM PRODUCT FOR CONTROLLING ACCELERATION SHOCK REDUCTION - An acceleration shock reduction control device, which reduces an acceleration shock occurring when a vehicle shifts from a deceleration state to an acceleration state, includes a first detector that detects rotation information of an engine mounted on the vehicle, a second detector that detects rotation information of a driving wheel which rotates by an output transmitted from the engine, and a controller that performs control to reduce the acceleration shock based on deviation information between the rotation information detected by the first detector and the rotation information detected by the second detector. | 07-04-2013 |
20130191011 | METHOD FOR CONTROLLING A VEHICLE ENGINE - A method and apparatus for controlling a vehicle engine during conditions detrimental to the engine such as e.g., high engine speed with high oil temperature and/or low oil pressure. In addition to protecting the engine, the method and apparatus will also improve the vehicle's fuel economy. | 07-25-2013 |
20130211695 | METHOD AND DEVICE FOR CONTROLLING A CRUISE CONTROL GOVERNOR IN A VEHICLE - A method for controlling a cruise control operable to maintain a set speed of a vehicle according to a plurality of goal droop curves is provided. The goal droop curves include: an isochronous droop curve; a top droop curve; and a bottom droop curve. The method includes performing command according to the droop curves; registering that the vehicle soon will enter an uphill slope; estimating in a vehicle position before entering the uphill slope if a downshift in a transmission of the vehicle will occur when traveling the uphill slope during a coming time period (testimation); if the downshift is estimated to occur then performing a fuel saving action during the time period in order to avoid the downshift. The fuel saving action is one of an adaptation of transmission downshifting limits or to during the time period performing command according to a second isochronous curve. | 08-15-2013 |
20130211696 | Actuation Device for Controlling the Power of an Internal Combustion Engine and Method for Controlling the Power of the Internal Combustion Engine - The subject innovation relates to a control device for controlling the power of an engine, whereby the control device has a control range in which—with the drive train closed—neither a drive torque nor a braking torque is introduced, as well as to a control device for controlling the power of an engine, whereby the control device comprises a first control range in which the engine has a continuous braking torque, as a result of which the vehicle can be decelerated, and comprises a second control range in which the engine has a continuous drive torque, as a result of which the vehicle can be accelerated. In this process, assistance is provided for locating a third control range, whereby this third control range is situated between the first control range and the second control range. | 08-15-2013 |
20130245923 | VEHICLE CONTROL APPARATUS - While a vehicle speed is between a first certain vehicle speed and a second certain vehicle speed lower than the first certain vehicle speed, it is determined whether to perform vehicle control in accordance with conditions excluding a condition based on the estimated road surface slope. | 09-19-2013 |
20130261939 | METHOD AND APPARATUS FOR MATCHING VEHICLE ECU PROGRAMMING TO CURRENT VEHICLE OPERATING CONDITIONS - Disclosed herein are techniques for implementing vehicle ECU reprograming, so the ECU programming, which plays a large role in vehicle performance characteristics, is tailored to current operational requirements, which may be different than the operational characteristics selected by the manufacturer when initially programming the vehicle ECU (or ECUs) with specific instruction sets, such as fuel maps. In one embodiment, a controller monitors the current operational characteristics of the vehicle, determines the current ECU programming, and determines if a different programming set would better suited to the current operating conditions. In the event that the current programming set should be replaced, the controller implements the ECU reprogramming. In a related embodiment, users are enabled to specify the ECU programming to change, such as changing speed limiter settings. | 10-03-2013 |
20130289853 | LOOK-UP TABLE BASED SKIP FIRE ENGINE CONTROL - A variety of skip fire engine controllers and control methods are described that utilize look-up tables, state machines, or other data structures to determine the sequence or ordering of skip-fire firings. In one aspect, a skip fire engine controller utilizes a look-up table to determine when firings are appropriate to deliver a desired engine output. In some embodiments, a firing timing controller tracks a value indicative of the portion of a firing that has been requested, but not yet directed and such information is utilized in the determination of the timing of the firings. The accumulator value is particularly useful when transitioning between different requested firing fractions. | 10-31-2013 |
20130297189 | Method for Detecting and Correcting Vehicle Reference Speed and Vehicle System - A method for detecting and correcting vehicle reference speed, in particular when the speed undergoes a controlled reduction due to drag or regeneration torque, of an all-wheel drive vehicle. The longitudinal acceleration of the motor vehicle, and the wheel accelerations are determined by sensors. The method is to provide reliable determination of the vehicle reference speed and the initiation of corrective measures once a controlled reduction has been recognized. The steps include filtering the wheel accelerations, filtering the longitudinal accelerations, forming a corrected longitudinal acceleration by applying a safety offset and a correction offset to the filtered longitudinal acceleration, and temporal integration of the difference between the corrected longitudinal acceleration and the respective wheel acceleration. In the event a threshold value of the absolute value of the difference is exceeded during a predetermined time interval with a preset number of wheels, step for adjusting the correction offset are initiated. | 11-07-2013 |
20130297190 | OUTPUT CHARACTERISTIC CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - An output characteristic control device for an internal combustion engine includes a road traffic environment detection unit configured to detect a road traffic environment in which an own vehicle is running, a recommended vehicle speed calculation unit configured to calculate a recommended vehicle speed of the own vehicle in the detected road traffic environment, a target output characteristic setting unit configured to set a target output characteristic of the internal combustion engine so that an output of the internal combustion engine corresponding to an accelerator operation amount is reduced as a vehicle speed difference between the recommended vehicle speed and an own-vehicle speed decreases, and an output characteristic changing unit configured to change the output characteristic of the internal combustion engine to the target output characteristic. | 11-07-2013 |
20130304358 | VEHICULAR CONTROL APPARATUS - A vehicular control apparatus performs control of enabling idle operation of an internal combustion engine that generates a motive power applied to a driving wheel of a vehicle if a vehicle speed of the vehicle is lower than a predetermined vehicle speed that is set in advance, and disabling idle operation of the internal combustion engine if the vehicle speed of the vehicle is equal to or higher than the predetermined vehicle speed, when the vehicle is in a state other than an acceleration running state. Accordingly, the vehicular control apparatus achieves an effect of making it possible to suppress the consumption of fuel. | 11-14-2013 |
20140058649 | WHEEL LOADER AND CONTROL METHOD OF WHEEL LOADER - A wheel loader includes a vehicle body frame, an engine, a working unit including a boom and a bucket, a cab accommodating therein an operator seat, a boom operating member an operating member that switches forward/rearward travelling, a first sensor configured and arranged to detect that the operating member is located in a neutral position, and a second sensor configured and arranged to detect that the boom has been operated. An engine control unit is configured to limit a maximum rotation speed of the engine to a predetermined rotation speed when the operating member for switching of forward/rearward travelling is located in the neutral position and the boom operating member has been operated. | 02-27-2014 |
20140074383 | On-Vehicle Carbon Monoxide Detector - An on-vehicle carbon monoxide detector is provided where the detector has an on-board diagnostic, 16-pin connector which interfaces the carbon monoxide detector with a vehicle's computer system. This interface allows the detector to be installed on any vehicle with a 16-pin connector and provide functionality when the carbon monoxide content of air exceeds a predetermined level. With an interface with a vehicle's computer system, the present disclosure may warn an occupant with many different signals, or combination of signals. Examples include visual signals and audible signals. Further, the present disclosure provides a system for altering the performance of the vehicle if an occupant is unresponsive. | 03-13-2014 |
20140081559 | ENGINE CONTROL SYSTEMS AND METHODS FOR VEHICLE LAUNCH - A driver request module determines a driver torque request based on an accelerator pedal position, a first difference between a target engine speed and a transmission input speed, and a second difference between the transmission input speed and a measured engine speed. A request generating module generates first and second torque requests based on the driver torque request. An engine speed control module generates third and fourth torque requests based on a target engine speed and the first and second differences. Based on a mode signal: a first selection module sets a fifth torque request to one of the first and third torque requests; and a second selection module sets a sixth torque request to one of the second and fourth torque requests. An adjusting module selectively adjusts an engine operating parameter based on at least one of the fifth and sixth torque requests. | 03-20-2014 |
20140114553 | METHOD AND SYSTEM FOR A VEHICLE - A method for running of a vehicle having a combustion engine which can selectively be connected to a driveshaft ( | 04-24-2014 |
20140136083 | METHOD FOR ACCELERATING A VEHICLE AND HYBRID VEHICLE - The functionality of a “Launch Control” is implemented in a hybrid vehicle, i.e. the hybrid vehicle can be accelerated to a maximum degree by starting the internal combustion engine immediately from the stationary state (S | 05-15-2014 |
20140136084 | VEHICLE CONTROL APPARATUS - A brake override system (BOS) ( | 05-15-2014 |
20140149020 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - In a control device for an internal combustion engine, which includes control unit that has a processor with a plurality of cores and that computes various tasks associated with operation of the internal combustion engine, the control unit includes a selecting unit, that selects at least one core used in the computation from among the plurality of cores, a computing unit that distributes the tasks to the at least one core selected by the selecting unit to perform computation, and an acquisition unit that acquires an engine, rotational speed of the internal combustion engine, and, when the engine rotational speed acquired by the acquisition unit is higher than or equal to a predetermined threshold, the selecting unit increases the number of the cores selected as compared with when the acquired engine rotational speed is lower than the predetermined threshold. | 05-29-2014 |
20140156175 | DRIVER ALERT AND DE-RATE CONTROL SYSTEM AND METHOD - A driver alert and de-rate control system for a vehicle includes a sensor configured to monitor an engine operating condition, and a control unit in communication with the sensor. The control unit is configured to estimate a time until automatic de-rate of the engine based on the engine operating condition and to modify a performance parameter of the vehicle in dependence upon the estimated time until automatic de-rate. | 06-05-2014 |
20140188373 | ENGINE CONTROL DEVICE OF WORK MACHINE AND ENGINE CONTROL METHOD THEREFOR - It is determined that assisting is required when a deviation of a target matching engine speed and a current engine speed is equal to or more than a predetermined value, and for a predetermined period of time since the time point at which it is determined that assisting is required, a target assist engine speed is set at a high rotation target matching engine speed which is more than the target matching engine speed, and thereafter the target assist engine speed is set gradually closer to the target matching engine speed, and an assist torque command value is output to the generator assisting output of the engine, and the engine speed is controlled, so that the engine speed attains the target assist engine speed. | 07-03-2014 |
20140195137 | INTERNAL COMBUSTION ENGINE CONTROL APPARATUS AND INTERNAL COMBUSTION ENGINE CONTROL METHOD - An internal combustion engine control apparatus, which is for a vehicle which runs on power from an electric motor, derives a required power of the electric motor, derives a power that the electric motor can output by electric power supplied from the battery, derives an optimum power in the generator based on the required power and an attainable power, determines an operation mode of the internal combustion engine based on a magnitude of the optimum generator power, derives an offset value for correcting an operation point of the internal combustion engine when operated in a constant point operation mode, derives, based on the optimum generator power, a target operation point for the internal combustion engine operated in the constant point operation mode, and controls the internal combustion engine to operate at an operation point which is obtained by correcting the target operation point by the offset value. | 07-10-2014 |
20140200795 | ENGINE CONTROL DEVICE OF WORKING MACHINE, AND ENGINE CONTROL METHOD FOR THE SAME - An engine control device is provided including a detection unit for detecting the operating state of a working machine; a no-load maximum speed computation unit for computing a no-load maximum speed being an engine speed to be increased to the maximum upon a load of the working machine being released, based on the operating state; a target matching speed computation unit for computing a target matching speed being an engine speed to be increased upon a load being applied to the working machine, separately from the no-load maximum speed, based on the operating state; a target engine output computation unit for computing target engine output EL that can be outputted to the maximum, based on the operating state; and an engine control unit for controlling the engine speed between the no-load maximum speed and the target matching speed under a restriction of the target engine output. | 07-17-2014 |
20140214308 | APPARATUS, SYSTEM AND METHOD FOR INCREASING BRAKING POWER - Disclosed herein is an apparatus for increasing the braking power of a compression brake of an internal combustion engine having a variable geometry turbocharger. The apparatus includes an intake throttle module configured to close an air intake throttle in response to operation of the compression brake. Further, the apparatus includes a VGT module is configured to adjust a VGT component to decrease the swallowing capacity of the VGT in response to operation of the compression brake. | 07-31-2014 |
20140236457 | ENGINE PROVIDING A SELF-ADJUSTING SYSTEM AND A METHOD TO SAVE FUEL IN ACCORDANCE WITH A PRACTICAL DRIVING STATE OF A VEHICLE - An engine provides a self-adjusting system and a method to save fuel in accordance with a practical driving state of a vehicle. The engine self-adjusting system includes an information center and a plurality of onboard computers. Each onboard computers has a vehicle controlling module for adjusting a response features of the engine so as to reduce influences of improper driving manners. An optimized standard road resistance characteristic coefficient is applied as a more valuable reference, so that the fuel consumption is efficiently reduced while keeping the vehicle powerful. | 08-21-2014 |
20140244139 | VEHICLE STOP CONTROL SYSTEM - A vehicle stop control system capable of finely and properly determining traveling of a vehicle in a traffic jam to permit or inhibit automatic stop according to the determination result to ensure the effect of fuel economy improvement by automatic stop and avoiding inconveniences caused by frequent execution of automatic stop and restart. The system sets a precondition vehicle speed satisfaction flag to 1 when a vehicle speed becomes not lower than a precondition speed after an internal combustion engine was automatically stopped to permit automatic stop. Further, time after the vehicle speed passed a jam determination speed and until the vehicle speed passes the same again is acquired as passing time. When the passing time is shorter than a predetermined time period, the system determines that the vehicle is traveling in a jam, and resets the flag to 0 to inhibit automatic stop. | 08-28-2014 |
20140257675 | SYSTEM AND METHOD FOR INDICATING ENGINE POWER BAND INFORMATION ON A TACHOMETER DISPLAY - A vehicle is described. The vehicle includes an engine, a drivetrain coupled to the engine, and a computing device including a memory and a processor coupled to the memory. The processor is configured to determine a peak horsepower of the engine and a first rotational speed of the engine associated with the peak horsepower, and determine a peak torque of the engine and a second rotational speed of the engine associated with the peak torque. The vehicle additionally includes a tachometer coupled to the computing device and including a tachometer display. The tachometer is configured to indicate, on the tachometer display, the first rotational speed and the second rotational speed provided by the computing device. | 09-11-2014 |
20140278014 | SYSTEM AND METHOD FOR ENGINE TRANSIENT POWER RESPONSE - There is provided a system and method for controlling an engine. A request signal indicative of a demand for the engine to output a required power level is first receive. A position control signal is then generated in response to the request signal. The position request signal is indicative of a first request for adjusting a present position of a variable geometry mechanism of the engine towards a commanded position to achieve the required power level. An acceleration rate control signal is further generated on the basis of the position control signal. The acceleration rate control signal is indicative of a second request for adjusting an acceleration rate of the engine in accordance with the commanded position of the variable geometry mechanism. The position control signal and the acceleration rate control signal are then output to the engine. | 09-18-2014 |
20140278015 | ROTATIONAL SENSOR AND CONTROLLER - Engine control systems having rotational sensors and controllers, and associated methods and systems, are disclosed herein. An engine control system in accordance with a particular embodiment can include a drum operably coupled to a rotating shaft of an engine. The drum can include a pattern positioned on its surface and a sensor can be positioned proximate to the drum to read the pattern and/or write a new pattern. A rod can operably couple the drum to an engine input mechanism and operate to axially move the drum. The axial movement of the drum can shift the pattern to different portions, resulting in a change in the timing for an engine event. | 09-18-2014 |
20140278016 | ENGINE TORQUE SPIKE CANCELLATION DEVICE - A torque spike cancellation device for an internal combustion engine is provided. The torque spike cancellation device comprises a first member, a second member, and a third member. The first member is in driving engagement with an output of the internal combustion engine. The second member is in driving engagement with the first member. The third member is in driving engagement with the second member. An angular deviation between the first member and one of the second member and the third member causes a cyclical acceleration of the third member. The cyclical acceleration of the third member adjusts a torque applied to the third member by the internal combustion engine. | 09-18-2014 |
20140336904 | VEHICLE CONTROL DEVICE - A vehicle control device includes a direct-injection engine and an electric rotating machine connected to the engine, wherein the vehicle control device stops the engine after opening a throttle while maintaining an engine speed by the electric rotating machine at the time there is a request to stop the engine. The engine speed is preferably maintained by an output torque of the electric rotating machine at the time fuel supply to the engine is stopped and the throttle is opened. At the time the throttle is opened while fuel is continuously supplied to the engine, it is preferable to maintain the engine speed by allowing the electric rotating machine to generate electric power. | 11-13-2014 |
20140336905 | GOOD-EFFICIENCY RPM ZONE DISPLAY DEVICE FOR CONSTRUCTION MACHINERY - An apparatus for displaying an RPM section having a good efficiency for a construction machine is disclosed, which includes a control unit outputting different control signals depending on whether a current engine RPM belongs to a predetermined RPM section having the good efficiency, and a good-efficiency display unit selectively turning on or off an LED lamp according to the control signal output from the control unit. Since the RPM section having the good efficiency of the construction machine equipment is defined and the LED lamp for indicating the good-efficiency state is turned on if the current engine RPM belongs to the RPM section, a client can finally achieve good fuel efficiency in using the construction machine equipment. | 11-13-2014 |
20140336906 | METHOD FOR PREDICTING A ROTATIONAL SPEED OF A CRANKSHAFT IN AN INTERNAL COMBUSTION ENGINE - Method for predicting a rotational speed (n) of a drive shaft ( | 11-13-2014 |
20140343829 | METHOD FOR CONTROLLING RPM OF CONSTRUCTION MACHINE ENGINE - According to the present disclosure, there is provided a method for controlling an RPM of an engine of construction machinery, including and converting and setting the received load factor to a load variation rate; receiving a current load factor of the engine and converting the received current load factor of the engine to a load variation rate; controlling driving of the engine with a corrected RPM, which is obtained by decreasing the RPM of the engine by a predetermined rate from a preset RPM when the current load factor of the engine and the load variation rate according to the current load factor are equal to or smaller than a predetermined rate of the predetermined load factor of the engine and a predetermined rate of the load variation rate for a first time, respectively; and controlling continuously decreasing the corrected RPM to a predetermined rate or smaller, when the current load factor of the engine and the load variation rate according to the current load factor are equal to or smaller than the predetermined rate of the predetermined load factor of the engine and the predetermined rate of the load variation rate for a second time, respectively. | 11-20-2014 |
20140372012 | ADAPTIVE CONTROL OF MOTOR VEHICLE POWERTRAIN - Embodiments of the present invention provide a vehicle having different operating modes, and for each such mode a different characteristic of output torque and accelerator pedal position. The rise of output torque in response to a propulsion request is more or less delayed according to the instant operating mode. The invention provides for blending of the response to a propulsion request so that the delay is progressively varied between a source and target operating mode. | 12-18-2014 |
20140379243 | Engine Control Device for Work Vehicle - An engine control device for work vehicle includes: a target rotation speed setting unit that sets a target rotation speed of an engine corresponding to an operation amount of an accelerator pedal; a rotation speed control unit that controls a rotation speed of the engine according to the target rotation speed; a travel driving unit that transmits rotation of the engine to wheels via a torque converter; a speed ratio detection unit that detects a speed ratio between an input shaft and an output shaft of the torque converter; and a target rotation speed correction unit that corrects the target rotation speed set by the target rotation speed setting unit so as to increase the target rotation speed based on the speed ratio when the operation amount of the accelerator pedal is smaller than a predetermined value and the speed ratio detected by the speed ratio detection unit is smaller than a predetermined value within a range which is equal to or greater than 0 and less than 1. | 12-25-2014 |
20150032360 | MONITORING OF TRANSMISSION-TO-ENGINE SPEED REQUESTS - A vehicle includes an engine having a crankshaft which rotates at an engine speed, a transmission having a rotatable input member, a transmission control module (TC), and an engine control module (ECM) in communication with the TCM. The TCM is programmed to execute a transmission-to-engine speed monitoring and control method which includes transmitting an engine speed request to the ECM which requests a positive increase in the engine speed, and terminating the request when the request is active for more than a first calibrated timeout duration. The TCM also terminates the request when the request is active for more than a second calibrated duration that is less than the first calibrated duration, the transmission is not in neutral, and both a shift of the transmission and an acceleration of the input member are not active. | 01-29-2015 |
20150094936 | INDUSTRIAL VEHICLE - An industrial vehicle which is equipped with an engine and having an Eco-mode in which torque of the engine is restricted includes an accelerator, an accelerator opening detector that detects an opening of the accelerator, a vehicle speed detector that detects a speed of the vehicle, an engine speed detector that detects a speed of the engine, and a torque restriction releasing unit which, when the torque of the engine is restricted, if conditions that the opening of the accelerator detected by the accelerator opening detector is a first predetermined value or greater, that the vehicle speed detected by the vehicle speed detector is a second predetermined value or smaller and that the engine speed detected by the engine speed detector is a third predetermined value or smaller are satisfied, releases the torque restriction. | 04-02-2015 |
20150112577 | POWER-ECONOMY MODE CONTROL SYSTEM FOR A VEHICLE - The present invention is related to a vehicle provided with operation selection mode. In particular, the present invention is related to a common rail electronically controlled vehicle provided with operation selection mode wherein the user can select either of the power mode and the economy mode of vehicle operation depending on the road conditions. The system of the present invention provides a system to enable selection of power mode operation for power conscious driving requirement or economy mode operation for fuel conscious driving option obviating the use of additional interface devices between engine and engine control unit. | 04-23-2015 |
20150120173 | SYSTEM AND METHOD FOR CONTROLLING A POWERTRAIN IN A VEHICLE - A system and method for controlling a powertrain in a vehicle includes a controller configured to control vehicle speed around a plurality of target vehicle speeds based on respective accelerator pedal positions. This control operates when the vehicle is operating outside of a constant speed control process. The current target vehicle speed can be used as a desired constant speed when the vehicle is operating within a constant speed control process. | 04-30-2015 |
20150127242 | CONTROL APPARATUS FOR VEHICLE, VEHICLE, AND MOTOR - A control apparatus of a vehicle obtains information indicating a relationship between an instruction value to be provided to an actuator in accordance with a driving condition of a vehicle and a torque capacity of a clutch. The control apparatus includes a table holding unit that stores a correction table to be applied under a condition when an output torque from the engine is increasing and a correction table to be applied under a condition when an output torque from the engine is decreasing, a gear change condition determining unit that determines under which condition a gear change is executed, and a correction table update unit that updates the correction table to be applied under the determined condition based on the information indicating a relationship between a target value and an actual value of the torque capacity generated at the inertia phase. | 05-07-2015 |
20150149064 | METHOD FOR CONTROLLING FOUR WHEEL DRIVING OF VEHICLE - A method of controlling traveling of a vehicle may include a measuring step that measures a longitudinal acceleration sensing value by a longitudinal acceleration sensor on a vehicle, a longitudinal acceleration calculating step that calculates a longitudinal acceleration of the vehicle from a speed of the vehicle, a slope degree calculating step that calculates a slope degree of a ground on which the vehicle is, from the longitudinal acceleration sensing value and the calculated longitudinal acceleration, a determining step that determines a slope direction and a slope level of the ground from the calculated slope degree, and a controlling step that provides in advance a torque amount, which is distributed from main driving wheels to sub-driving wheels for traveling, to a power distribution device, at different levels in accordance with the slope direction and the slope level of the ground. | 05-28-2015 |
20150149065 | METHOD FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE - A method controls an internal combustion engine that has a drive output shaft connected to an input shaft of a transmission. The internal combustion engine, the transmission and a drive wheel are encompassed by a drivetrain for the drive of a motor vehicle. The method includes determining a rotational acceleration of the input shaft and determining an input torque at the input shaft of the transmission based on a product of the rotational acceleration and a speed reduction ratio-dependent moment of inertia of the drivetrain in a section between the input shaft and the drive wheel. A combustion torque of the internal combustion engine is controlled such that the input torque adheres to a predetermined maximum input torque at the input shaft of the transmission. | 05-28-2015 |
20150300277 | REGULATION OF CONCENTRATION/FRACTION OF SUBSTANCES IN AN EXHAUST STREAM - A method for regulation of a concentration/fraction of one or several substances comprised in an exhaust system in a motor vehicle through control of its driveline: The driveline includes a combustion engine which may be connected to a gearbox via a clutch device, wherein the gearbox has several discrete gears, and an exhaust system for removal of an exhaust stream from the combustion engine; the method includes obtaining one or several first parameters P | 10-22-2015 |
20150314787 | VEHICLE CONTROL APPARATUS, AND METHOD OF CONTROLLING SAME - A vehicle control apparatus includes: a first target driving force calculation unit that calculates a first target driving force based on an accelerator pedal opening; a target speed ratio calculation unit that calculates a target speed ratio of a continuously variable transmission based on the first target driving force; a target torque calculation unit that calculates a target torque of a driving source based on the first target driving force; an air density detection unit that detects air density; and a first correction unit that corrects only the target torque, out of the target speed ratio and the target torque, in accordance with the air density. | 11-05-2015 |
20150322873 | FUEL-SAVING SELF-ADJUSTING SYSTEM FOR A VEHICLE ENGINE - A fuel-saving self-adjusting system for a vehicle engine adapted to the actual conditions of a road, including an information center and a plurality of onboard computers respectively mounted on a plurality of vehicles. Each of the onboard computers has a vehicle controlling module for adjusting a response of the engine of each vehicle so as to reduce adverse influences of improper driving manners. An optimized standard road resistance characteristic coefficient is applied as a more reliable reference to reduce the fuel consumption of the vehicle efficiently. | 11-12-2015 |
20150329117 | METHODS AND SYSTEM FOR OPERATION OF VEHICLE - A method of operating a vehicle. The vehicle includes an engine. The method including determining if the engine is to be operated at idle and determining a current mode of operation of the vehicle. The current mode of operation is any one of a plurality of modes of operation including at least a first mode and a second mode. The method includes, if the engine is to be operated at idle, operating the engine at a first idle speed if the current mode of operation of the vehicle is the first mode of operation; and operating the engine at a second idle speed if the current mode of operation of the vehicle is the second mode of operation. The first idle speed is greater than the second idle speed. | 11-19-2015 |
20150336582 | ENGINE CONTROL DEVICE FOR HYBRID CONSTRUCTION MACHINERY - The present disclosure relates to an engine control device for hybrid construction machinery, and more particularly, and an object of the present disclosure is to, in a hybrid excavator, in which a swing apparatus is electrically driven by being separated from a hydraulic power train system in the related art, satisfy a minimum rotational speed of an engine auxiliary motor which is necessary to satisfy a target charging amount required for an energy storage device, and improve fuel efficiency by removing unnecessary energy loss at low loads by controlling a rotational speed of an engine to be lower than a rotational speed of an engine determined based on a dial input and a mode input in the related art, in a case where a target power generation amount of the engine auxiliary motor is small in a low-load work situation. | 11-26-2015 |
20150337789 | VEHICLE CONTROL APPARATUS - A vehicle control apparatus performs control of enabling idle operation of an internal combustion engine that generates a motive power applied to a driving wheel of a vehicle if a vehicle speed of the vehicle is lower than a predetermined vehicle speed that is set in advance, and disabling idle operation of the internal combustion engine if the vehicle speed of the vehicle is equal to or higher than the predetermined vehicle speed, when the vehicle is in a state other than an acceleration running state. Accordingly, the vehicle control apparatus achieves an effect of making it possible to suppress the consumption of fuel. | 11-26-2015 |
20150369144 | CONTROL APPARATUS FOR VEHICLE - A control apparatus for a vehicle is provided. The vehicle includes an engine and a transmission. The transmission is configured to continuously change an engine operating point that is defined by a rotational speed of the engine and a torque of the engine. The control apparatus includes an ECU. The ECU is configured to, when a target engine required power increases in response to a reacceleration operation, set the rotational speed and the torque so as to reach a power of the engine to the target engine required power while holding the rotational speed equal to or higher than the rotational speed at a time of the reacceleration operation. The ECU is configured to control the engine operating point based on the set rotational speed and the set torque. | 12-24-2015 |
20160010577 | METHOD FOR CONTROLLING A SPEED SURGE OF AN INTERNAL COMBUSTION ENGINE OF A MOVING VEHICLE DURING A GEARBOX RATIO CHANGE | 01-14-2016 |
20160010582 | METHOD AND ARRANGEMENT FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE, COMPRISING AT LEAST TWO CONTROL UNITS | 01-14-2016 |
20160061132 | DRIVING FORCE CONTROL SYSTEM AND SADDLED VEHICLE - A driving force control system according to an embodiment of the present invention includes: an absolute bank angle detector configured to detect an absolute bank angle that is the absolute value of a vehicle's bank angle; a calculation circuit configured to calculate a relative bank angle that is the vehicle's relative angle with respect to a maximum absolute bank angle that is the maximum value of the absolute bank angle; and a controller configured to control driving force based on the relative bank angle. | 03-03-2016 |
20160076505 | METHOD AND SYSTEM FOR CONTROLLING IDLE STOP OF VEHICLE - A method and a system for controlling idle stop of a vehicle that can reduce braking noise and prevent startup delay may be included, wherein the method for controlling may include estimating a disk temperature, determining whether the estimated disk temperature may be lower than or equal to a first predetermined temperature, and prohibiting engine stop according to the idle stop when the estimated disk temperature may be higher than the first predetermined temperature. | 03-17-2016 |
20160138468 | VEHICLE ENGINE SPEED DISPLAY DEVICE - A vehicle engine speed display device is provided with an engine speed detection unit which detects an engine speed, an engine speed display unit which displays an engine speed, and a display control unit which controls the engine speed display unit on the basis of the detected engine speed. The display control unit determines whether a phase of a gear shift operation is an inertia phase when gear shift control of an automatic transmission is executed, and sets display responsiveness of a tachometer with respect to the detected engine speed higher than display responsiveness to be set when the phase is not the inertia phase, when the phase of the gear shift operation is determined to be the inertia phase. | 05-19-2016 |
20160138503 | DEVICE AND METHOD FOR CONTROLLING ENGINE RPM FOR CONSTRUCTION MACHINERY - An apparatus and a method for controlling engine RPM (Revolutions Per Minute) for a construction machine are disclosed, which can compulsorily decrease the engine RPM when an air filter clogging signal is generated. The method for controlling engine RPM for a construction machine including an engine, an air filter, an air filter clogging switch, an engine electronic control unit (E-ECU), and a vehicle electronic control unit (V-ECU), includes determining whether the air filter is clogged in accordance with a signal from the air filter clogging switch, continuously accumulating an engine operating time without initializing the engine operating time even if an engine start is turned off after the air filter clogging signal is generated, determining whether the air filter is repaired or replaced if the accumulated engine operating time exceeds a predetermined time after the air filter clogging signal is generated, applying a control signal from the V-ECU to the E-ECU to compulsorily decrease the engine RPM to predetermined RPM if the air filter is not repaired or replaced in a state where the accumulated engine operating time exceeds the predetermined time, and decreasing the engine RPM to the predetermined RPM in accordance with the control signal that is applied from the E-ECU to an engine driving unit. | 05-19-2016 |
20160177844 | SYSTEMS AND METHODS FOR AUTOMATICALLY CONTROLLING THE ENGINE OF A TURF-CARE VEHICLE | 06-23-2016 |
20170232841 | ACTIVE FUEL CONTROL SYSTEM FOR AGGRESSIVE DRIVERS | 08-17-2017 |