During vehicle turning, during which a behavior stabilization control is not carried out, a vehicle driving assistance device carries out a turning assist control including: yaw moment control for increasing the amount of drive torque distributed to a drive wheel that, among two left and right drive wheels of the vehicle, is on the outer side of the turn by imparting braking torque to the drive wheel that is on the inner side of the turn; and a deceleration control for decelerating the vehicle. At this time, the driving assistance device calculates a control moment amount and calculates a control deceleration amount on the basis of a travel mode selected by operation of an operation unit.

A front tire heating and cleaning system for a vehicle includes a brake system configured to selectively apply hydraulic braking pressure against front wheels and rear wheels of the vehicle, and a controller in signal communication with the brake system. The controller is configured to, upon receipt of a request, initiate a controlled front tire heating mode where the brake system is controlled to selectively apply hydraulic braking pressure against the rear wheels and not the front wheels, and rotate the front wheels to increase tire temperature for improved front wheel traction during off-road maneuvers.

A vehicle and method is provided. The vehicle includes systems and method for limiting the slip of the wheels. In an embodiment, the system holds the brakes based on an acceleration characteristic measured by a sensor. In another embodiment, the system includes a transmission controller that applies an adjustment to limit an amount of clutch slip as the clutch temperature to change in clutch performance to reduce wheel slip. In another embodiment, the system monitors wheel slip signal from a sensor and compares the wheel slip to a target slip value and controls clutch slip of the transmission clutch based to maintain engine output torque during acceleration. In another embodiment, in response to an anticipated vehicle launch event, a drive motor applies a first torque to the input shaft to adjust a gear lash of the differential unit.

Provided is a control device for an electric vehicle capable of stabilizing vehicle behavior when performing slip control of drive wheels. The control device for an electric vehicle according to the present invention is a control device for an electric vehicle to be used in an electric vehicle, the electric vehicle including: a motor which is connected to the drive wheels of the electric vehicle via a differential gear and a drive shaft, and which is configured to generate a braking or driving torque for each of the drive wheels; and a mechanical braking device capable of independently generating a braking force for each of the drive wheels. In this control device for an electric vehicle, when a slip ratio of each of the drive wheels is detected as being a predetermined slip ratio or more, a torque absolute value of the motor is reduced so that the slip ratio of each of the drive wheels is a target motor slip ratio, and a larger braking force is applied by the mechanical braking device to, of a right drive wheel and a left drive wheel, the drive wheel having a higher wheel speed than the drive wheel having a lower wheel speed.

The control device for a four-wheel drive vehicle includes a differential restriction control unit configured to cause the differential restriction device, which is enable a differential restriction degree between a front wheel rotary shaft and a rear wheel rotary shaft, to change the differential restriction degree and a braking control unit configured to cause the braking device to perform EBD control and ABS control. The braking control unit is configured to cause the braking device to suspend the EBD control when the ABS control is started while the EBD control is being performed, and the differential restriction control unit is configured to change the differential restriction degree to a third degree larger than a first degree and equal to or smaller than a second degree when the ABS control is started while the EBD control is being performed.

A lane departure prevention apparatus (17) has: a departure preventing device (172) for control a braking apparatus (122) to perform a departure prevention operation by applying yaw moment (M.sub.tgt) to a vehicle (1), wherein the yaw moment is generated by a difference of the braking forces between right wheels (121FR, 121RR) and left wheels (121FL, 121RL)1; and a controlling device (173) for controlling the departure prevention device so that the braking force applied to driving wheels (121RL, 121RR) becomes smaller and the braking force applied to non-driving wheels (121FL, 121FR) becomes larger when the departure prevention operation is performed and a differential apparatus (132) limits a differential rotation, compared to a case where the departure prevention operation is performed and the differential apparatus does not limit the differential rotation.

A lane departure prevention apparatus (17) has: a departure preventing device (172) for control a braking apparatus (122) to perform a departure prevention operation by applying yaw moment (M.sub.tgt) to a vehicle (1), wherein the yaw moment is generated by a difference of the braking forces between right wheels (121FR, 121RR) and left wheels (121FL, 121RL)1; and a controlling device (173) for controlling the departure prevention device so that the braking force applied to driving wheels (121RL, 121RR) becomes smaller and the braking force applied to non-driving wheels (121FL, 121FR) becomes larger when the departure prevention operation is performed and a differential apparatus (132) limits a differential rotation, compared to a case where the departure prevention operation is performed and the differential apparatus does not limit the differential rotation.

A vehicle includes a sensor device monitoring at least one collision region that is located in the surroundings of the vehicle for sensing at least one object that enters and/or is present in a possible collision region during motion of the vehicle; an electromechanical brake booster and braking force-regulating components coupled thereto, which are operationally integrated into a vehicle braking system for decelerating the vehicle; and a control device that receives signals from the sensor device and, on the basis of those signals, controls the brake booster and the braking force-regulating components and/or further active chassis components. A method for avoiding a collision between the vehicle and the at least one object includes, upon sensing the at least one object, modifying a driving speed and/or driving direction of the vehicle, with the aid of the control device in combination with the braking system and the braking force-regulating components.

A method for operating a motor vehicle (1) having at least one driven axle (3) with a locking differential (10a), where when the motor vehicle (1) is driving and the locking differential (10a) concerned is engaged on at least one driven axle (3), it is checked whether the motor vehicle is driving round a curve. If it is found that the motor vehicle is driving round a curve, the engaged locking differential (10a) is actuated to disengage it and it is checked whether the locking differential (10a) concerned has in fact been disengaged. If it is found that the locking differential (10a) concerned has not been disengaged, the wheel of the driven axle (3) concerned on the outside of the curve is braked.

A safe parking system is provided with: a torque-generating motor; a final drive including side gears drivingly coupled with the motor, a differential gear with a lock to prevent a differential motion between the side gears and an actuator for releasing the lock; an ignition key having an ON position and an OFF position; a differential-lock switch having an open position and a closed position; a switching unit for selecting whether the actuator is turned on or off; and a controller configured to, when the ignition key is detected to be in the OFF position, turn off the actuator if the differential-lock switch is in the open position, and execute no operation about the actuator if the differential-lock switch is in the closed position.