Patent application number | Description | Published |
20080281502 | CONTROL APPARATUS FOR A SOURCE OF ROTATIONAL DRIVE FORCE - A control apparatus for controlling a source of rotational drive force based on a target rotational speed. The control apparatus includes a target model rotational speed calculation section, an actual rotational speed detection section, and a target rotational speed adjustment section. The target model rotational speed calculation section calculates a rotational speed corresponding to a target drive force of the source as a target model rotational speed. The actual rotational speed detection section detects an actual of the source. The target rotational speed adjustment section sets the target rotational speed by correcting a value of the target model rotational speed calculated by the target model rotational speed calculation section to gradually approach the actual rotational speed detected by the actual rotational speed detection section. Accordingly, hunting of the engine during control is prevented and the deviation between the actual rotational speed and the target rotational speed is reduced or prevented. | 11-13-2008 |
20080294301 | Vehicle Integrated-Control Apparatus and Vehicle Integrated-Control Method - One of the manager control units among multiple control units includes a first coordination portion that coordinates a control target value derived based on an instruction from a driver or a first control unit and expressed by a first unit of physical quantity, with an instruction value from a second control unit and expressed by the first unit of physical quantity; a conversion portion that converts the control value expressed by the first unit of physical quantity into a control target value expressed by a second unit of physical quantity; a second coordination portion that coordinates the control target value derived by the conversion portion and expressed by the second unit of physical quantity, with an instruction value transmitted from a T/M control unit and expressed by the second unit of physical quantity; and an output portion that outputs the control target value to an engine control unit. | 11-27-2008 |
20080312802 | Driving Force Control Device and Driving Force Control Method - In a driving force control device and driving force control method according to the invention, a first target driving force is calculated based on an operation amount of an accelerator pedal by a driver, a second target driving force, which is necessary for a vehicle to maintain a constant vehicle speed or maintain a predetermined relative distance or relative speed relationship with a target object near the vehicle, is calculated, an intention of a driver to increase or reduce the vehicle speed is determined, the first target driving force and the second target driving force are coordinated with each other, using a unit of driving force, in consideration of the intention of the driver, and driving force is controlled based on a target driving force derived through a coordination process. | 12-18-2008 |
20090018738 | Gear shift system for vehicle, control method and control device for automatic transmission - A parameter α(OUT) having an accelerator pedal position, a vehicle speed and a drive force as components is set according to information representing a driver's operation and information representing running environment of a vehicle. A gear is set according to the parameter α(OUT) and a map determining the gear based on the accelerator pedal position, the vehicle speed and the drive force. A gear shift line is defined such that a rate of increase of the drive force with respect to the vehicle speed is zero or more. A down-shift line is defined such that the drive force decreases with increase in accelerator pedal position. Down-shift after up-shift as well as the up-shift after the down-shift are inhibited when both a condition that an amount of change of the accelerator pedal position after last gear shift is larger than a threshold and a condition that an amount of change of the drive force after the last gear shift is larger than the threshold are satisfied. | 01-15-2009 |
20090018757 | Control device for vehicle - The present invention relates to a control device for a vehicle, having an engine | 01-15-2009 |
20090024288 | Driving source controller and control method - An ECU executes a program including the steps of: detecting engine speed NE based on a signal transmitted from an engine speed sensor; calculating engine speed NE with dead time of the engine with respect to a target output torque removed; calculating engine speed NE reflecting the dead time of the engine with respect to the target output torque; correcting the actual engine speed NE in accordance with a difference between the engine speed with dead time removed and the engine speed reflecting the dead time; and setting the target value of output torque in accordance with the corrected engine speed NE. | 01-22-2009 |
20090037066 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - A driving force control system includes an internal combustion engine model ( | 02-05-2009 |
20090048746 | Vehicle cruise control apparatus - A vehicle cruise control apparatus is provided. The vehicle has an engine | 02-19-2009 |
20090125199 | Driving Force Control Device and Driving Force Control Method - The invention relates to a driving force control device and method employed in a vehicle including a drive source and an automatic transmission which is connected to the drive source and which changes a speed ratio in a stepwise manner or continuously. With the control device and method, a first target driving force is set based on an operation amount of an accelerator pedal by a driver and a vehicle speed; a target throttle valve opening amount is set based on the operation amount of the accelerator pedal by the driver; a second target driving force is set based on the target throttle valve opening amount; a final target driving force is set by coordinating the first target driving force and the second target driving force with each other according to a predetermined coordination condition; and the drive source and the automatic transmission are controlled based on the final target driving force. | 05-14-2009 |
20090248261 | ASSUMPTION TORQUE SETTING DEVICE, AUTOMATIC TRANSMISSION CONTROLLER, AND METHOD FOR LEARNING INTERNAL COMBUSTION ENGINE DELAY MODEL - An assumption torque setting device for an engine that executes a torque reduction process during gear shifting. The device sets a torque assumed to be output by the engine and based on a target torque from which an amount corresponding to the torque reduction process is excluded as an assumption torque during the gear shifting. The device includes an assumption model torque calculation unit which calculates an assumption model torque from the target torque from which an amount corresponding to the torque reduction process is excluded based on an internal combustion engine delay model. An assumption torque calculation unit calculates before torque reduction is performed an assumption torque based on an engine operation state and calculates when the torque reduction is being performed an assumption torque based on the assumption model torque and an assumption torque calculated from the engine operation state. | 10-01-2009 |
20090259370 | Vehicle Integrated-Control Apparatus and Vehicle Integrated-Control Method - The invention relates to a vehicle integrated-control apparatus and method that controls at least a drive control system, a brake control system, and a dynamic behavior control system in an integrated manner. A temporary control target (F | 10-15-2009 |
20090292430 | SHIFT CONTROLLER OF VEHICLE AUTOMATIC TRANSMISSION - A shift controller includes: a shift control unit automatically shifting gears of an automatic transmission using a basic shift line map; a shift line map switching control unit switching from the basic shift line map to a high fluid temperature shift line map set on a lower vehicle speed side when a hydraulic fluid temperature in the automatic transmission is higher than a predetermined value; and a low power state determination unit determining whether a vehicle is in a low power state in which a required power related value used for gear shift determination is lower than a predetermined determination value. The shift line map switching control unit switches from the high fluid temperature shift line map back to the basic shift line map when the hydraulic fluid temperature is lower than the predetermined value and the vehicle is in the low power state. | 11-26-2009 |
20100010716 | CONTROL DEVICE FOR VEHICULAR AUTOMATIC TRANSMISSION - A control device for an automatic transmission | 01-14-2010 |
20100137103 | SHIFT CONTROL DEVICE AND SHIFT CONTROL METHOD FOR AUTOMATIC TRANSMISSION - An electronic control unit is provided with two types of gear change maps: a first gear change map based on the vehicle speed and the accelerator pedal operation amount; and a second gear change map based on the vehicle speed and the required drive force of the vehicle. The electronic control unit determines whether the automatic transmission should downshift with reference to the first gear change map, and determines whether the automatic transmission should upshift with reference to the second gear change map. | 06-03-2010 |
20100191429 | CONTROL DEVICE OF A CONTINUOUSLY VARIABLE TRANSMISSION - A low-side target gear ratio “alpha” and a high-side target gear ratio “beta” are calculated using an up-use map Ma and a down-use map Mb based on a vehicle speed and an accelerator opening amount, and with regard to a region wherein the target gear ratio “alpha” is not more “high” than an actual gear ratio and the target gear ratio “beta” is not more “low” than the actual gear ratio, a gear ratio of a continuously variable transmission is held. | 07-29-2010 |
20100197457 | VEHICLE DRIVING FORCE CONTROL DEVICE - A shift output torque control unit executes a shift output torque control to control an engine torque so as to reduce a driving force difference, which is a variation width of a driving force due to downshift of an automatic transmission. Thus, in comparison with the case in which the shift output torque control is not executed, it is possible to smooth a variation in driving force associated with the downshift. As a result, occupants' comfort and controllability to driving operation may be improved. | 08-05-2010 |
20100262352 | CONTROLLER FOR ENGINE - An ECU includes: an engine control unit that controls devices provided for an engine on the basis of a target engine rotational speed; and an engine model that calculates the target engine rotational speed such that the target engine rotational speed varies in accordance with a target engine torque and an actual engine rotational speed in a steady state, and that calculates the target engine rotational speed such that the target engine rotational speed varies in accordance with the target engine torque independently of the actual engine rotational speed in a transient state in which the engine is unstable as compared with the steady state. When the engine is controlled by the thus configured ECU, the control accuracy is improved. | 10-14-2010 |
20100274460 | CONTROL APPARATUS AND CONTROL METHOD FOR POWER SOURCE - Static demand engine torque is converted into dynamic demand engine torque. The dynamic demand engine torque converted from the static demand engine torque is accommodated in relation to the dynamic demand engine torque set in another system. Static demand drive force is converted into dynamic demand drive force. The dynamic demand drive force converted from the static demand drive force is accommodated in relation to the dynamic demand drive force set in another system. | 10-28-2010 |
20120271526 | VEHICLE CONTROL APPARATUS - Disclosed is a vehicle control apparatus which can prevent drivability from being deteriorated. The ECU is operative to determine whether the previously depressed brake is in the “ON” or “OFF” state when the vehicle is determined as being not travelling on a bad road, the accelerator being in the “ON” state, and the brake being in the “ON” state. When the ECU is operative to determine that the previously depressed brake is in the “OFF” state, and the vehicle is in the reduced speed state, the ECU is operative to perform the reduction process of the engine output under the condition that the simultaneous depressions of the accelerator and brake pedals are held for less than 10 seconds, and the vehicle speed is 7 km/hr or more. When, on the other hand, the ECU determines that the vehicle is travelling on the bad road, the ECU is operative not to perform the reduction process. | 10-25-2012 |
20150038292 | CONTROL DEVICE FOR VEHICLE DRIVE DEVICE - A control device of a vehicle drive device includes an engine having a supercharger and an automatic transmission outputting power of the engine to drive wheels, when a supercharging pressure at the end of the upshift is increased as compared to the start of the upshift such that an engine torque at an end of an upshift of the automatic transmission is made larger than that at a start of the upshift, a target supercharging pressure being set depending on a predicted engine operation state after the upshift to allow a shift operation to proceed while an increase of the supercharging pressure is started before a completion of the upshift such that the supercharging Pressure reaches the target supercharging pressure, the supercharging pressure being controlled such that a target engine torque determined based on a vehicle state is achieved, and when the supercharging pressure cannot be increased in the upshift before the end of the upshift to a magnitude required for generating the target engine torque at the end of the upshift, a predefined engine torque lower than the target engine torque at the end of the upshift being retained after the end of the upshift. | 02-05-2015 |
20150088390 | CONTROL DEVICE FOR VEHICLE DRIVE DEVICE - A control device for a drive device of a vehicle which is provided with an engine, a supercharger to raise a pressure of intake air introduced in said engine, an accelerating member manually operable by an operator of the vehicle to accelerate the vehicle, and an automatic transmission constituting a portion of a power transmitting path between said engine and drive wheels, and wherein said engine is placed in a first operating state in which said supercharger is operated, or a second operating state in which an operation of said supercharger is restricted as compared with that in said first operating state, said control device comprising: a speed ratio selection control portion configured to implement a speed ratio selection control to change a method of selecting a speed ratio of said automatic transmission depending upon a rate of increase of an operation amount of said accelerating member, where said engine will be placed in said first operating state if said automatic transmission is shifted to select a first speed ratio value according to a predetermined shifting map while said engine is placed in said second operating state, said speed ratio selection control portion implementing said speed ratio selection control to shift said automatic transmission to select said first speed ratio value when the rate of increase of the operation amount of said accelerating member is relatively low, and to shift said automatic transmission to select a second speed ratio value at which said engine is kept in said second operating state and which is higher than said first speed ratio value, when the rate of increase of the operation amount of said accelerating member is relatively high. | 03-26-2015 |