摘要:
A vehicle control device and a vehicle control method thereof are provided in the disclosure. The judgment unit determines a possibility of executing the idle suppression control based on a driving state of the vehicle. The driving force control unit executes driving force control on the vehicle according to external conditions of the vehicle. During execution of the driving force control, when the judgment unit determines that there is the possibility of executing the idle suppression control, the driving force control unit is controlled to increase a driving force distribution ratio of a driven wheel and decrease a driving force distribution ratio of a driving wheel while maintaining a state of an overall driving force of the vehicle.
摘要:
A driving force control system for a vehicle that eliminates backlash in torque transmission paths when decelerating or stopping the vehicle. In the vehicle, a differential unit reverses a torque delivered from a motor to a second output shaft. A controller generates a drive torque by an engine and a control torque by the motor when stopping or decelerating the vehicle. Consequently, a difference between torque delivered from the engine to a first output shaft and torque delivered from the motor to the first output shaft is increased to a first predetermined torque or greater, and torque delivered from the motor to the second output shaft is increased to a second predetermined torque or greater.
摘要:
A method of preventing an automatic transmission vehicle from rolling downward on a hill is provided. The method includes determining whether the vehicle travels normally or abnormally on the hill based on a gradient measured by a G sensor and a direction of a wheel measured by a wheel sensor. A controller is maintained in an off state when the vehicle travels normally based on driver intention. The method further includes determining whether to operate the controller by determining a difference in wheel speed between a front wheel and a rear wheel of the vehicle when the vehicle travels abnormally as the vehicle rolls downward.
摘要:
Operating a drive train of a vehicle with a clutch unit for distributing torque on a primary axis and a secondary axis of the vehicle comprises: a) determining an available drive torque; b) determining excess torque on the primary axis; c) determining an actual maximum torque on the secondary axis; d) determining the excess torque on the secondary axis insofar as the maximum torque is not exceeded.
摘要:
A vehicle control strategy provides for automatically controlled movement from rest with deliberate wheel slip to maximize thrust. Different wheel slip conditions are provided for different terrain types. Wheel slip may be progressively reduced as the vehicle reaches a steady state speed. The strategy may also be implemented to maintain vehicle progress on low friction surfaces. The vehicle driver may be commanded to vary a control input, such as accelerator pedal position.
摘要:
A vehicle power control system includes a driving force control unit configured to limit a driving force during acceleration of a vehicle when the vehicle is in a predetermined power control driving state. The driving force control unit includes a notification unit configured to tactilely notify a driver via a throttle manipulator that a driving force limit state occurs during the acceleration of the vehicle.
摘要:
In a control device for a limited slip differential that limits a differential operation of front and rear wheels of a four-wheel-drive vehicle having mounted thereon a vehicle behavior control device that controls a braking force, an ECU that controls a torque coupling as the limited slip differential includes: a differential limiting force calculating device that calculates target torque of the torque coupling based on a vehicle traveling state; a differential limiting force correcting device that makes a correction to reduce the target torque based on a command from the vehicle behavior control device; and a thermal load calculating device that calculates a thermal load of the torque coupling. The differential limiting force correcting device limits the correction of the target torque based on the command from the vehicle behavior control device, when the thermal load of the torque coupling is equal to or larger than a predetermined value.
摘要:
A control apparatus and method for operating a road-bound hybrid vehicle are provided. The vehicles includes a control apparatus for controlling the drive torque of a first drive unit which is associated with a first axle and of the drive torque of a second drive unit which is associated with a second axle. One drive unit has at least one electric motor and the other drive unit has at least one internal combustion engine, wherein a load point increase, by which an energy store for operating the electric motor is charged, is limited by the internal combustion engine and the control unit. The limiting is performed by: in a first step, determining a maximum permissible upper limit for the load increase torque under optimum traction conditions depending on the steering angle and on the vehicle speed. In a second step, performing, as required, a torque-reducing adaptation of the previously determined upper limit to match traction-impairing environmental influences which may be present.
摘要:
A driving force distribution controller comprises: a control device determining the value of torque which must be transmitted to a rear wheel; and a driving force transmission device transmitting torque corresponding to the torque value determined by the control device to the rear wheel. The control device reduces a torque value calculated based on an opening degree of an accelerator and a rotational speed difference when the rotational speed of an engine is lower than a first threshold value but higher than a second threshold value.
摘要:
An electrically driven vehicle equipped with electric motors (1, 4) for driving or braking drive wheels (3, 6), and an electric motor controller (33) for controlling the electric motors includes: wheel speed detectors (9 to 12) for detecting the wheel speed of the drive wheels and that of idler wheels (7, 8); computing means (22 to 28, 35 to 38) for computing the slip ratio of the drive wheels based on the wheel speed of the drive wheels and that of the idler wheels; and a determiner (29) for determining that the drive wheels are slipping if the slip ratio exceeds a slip ratio determination value. If the wheel speed of the idler wheels is lower than set speeds Va2, Vb2, then the determiner (29) changes the slip ratio determination value to a value having as the same sign as, and a larger absolute value than, the values λa2, λb2 used when the wheel speed of the idler wheels is higher than the set speeds Va2, Vb2. This structure shortens acceleration time during acceleration traveling and reduces braking distance during deceleration traveling while inhibiting vibrations of the electrically driven vehicle.