A vehicle control device is mounted on a vehicle including a driving actuator configured to apply a driving force and a braking actuator configured to apply a braking force. The vehicle control device includes a processor. The processor is configured to correct, when a predetermined condition including at least that the vehicle is decelerating is satisfied, the required driving force and the required braking force so as to increase the required driving force and the required braking force such that a sum of a magnitude of the required driving force and a magnitude of the required braking force is equal to or larger than a magnitude of the component of the gravity acting on the vehicle in the movement direction of the vehicle.

A vehicle control system determines an upper non-zero limit on deceleration of a vehicle to prevent rollback of the vehicle down a grade being traveled up on by the vehicle. The upper non-zero limit on deceleration is determined by the controller based on a payload carried by the vehicle, a speed of the vehicle, and a grade of a route being traveled upon by the vehicle. The controller is configured to monitor the deceleration of the vehicle, and to automatically prevent the deceleration of the vehicle from exceeding the upper non-zero limit by controlling one or more of a brake or a motor of the vehicle. The controller also is configured to one or more of actuate the brake or supply current to the motor of the vehicle to prevent rollback of the vehicle while the vehicle is moving up the grade at a non-zero speed.

A driving support system installed on a vehicle includes a sensor detecting a vehicle state, a braking device, and a control device. The control device determines, based on the vehicle state, whether or not a first condition suggesting roll back of the vehicle is satisfied, and whether or not a second condition more strongly suggesting the roll back of the vehicle than the first condition is satisfied after the first condition is satisfied. When the second condition is satisfied after the first condition is satisfied, the control device executes roll back suppression control that controls the braking device to generate a braking force such that the vehicle stops. During a period from when the first condition is satisfied to when the second condition is satisfied, the control device executes precharge control that decreases play in the braking device without starting the roll back suppression control.

Methods, systems, and apparatus for a brake assist control system. The brake assist control system is for a vehicle. The brake assist control system includes a first sensor configured to detect driver awareness. The brake assist control system includes an electronic control unit. The electronic control unit is coupled to the first sensor. The electronic control unit is configured to determine that a brake pedal and an accelerator pedal are in a released position. The electronic control unit is configured to determine that there is vehicle movement. The electronic control unit is configured to determine that a driver of the vehicle is unaware of the vehicle movement based on the driver awareness. The electronic control unit is configured to reduce or eliminate the vehicle movement.

A control device for a vehicle including a first brake device that applies a braking force to vehicle wheels in response to a driver's operation of a brake, a second brake device that applies a braking force to the vehicle wheels through an electric actuator when a shifting operation position is switched to a parking position, and a parking lock mechanism that stops rotation of the vehicle wheels by stopping rotation of a parking gear interlocking with the vehicle wheels when the shifting operation position is switched to the parking position. The control device includes an electronic control unit configured to maintain an operating state of the first brake device until the braking force is applied to the vehicle wheels by the second brake device when the shifting operation position is switched to the parking position after the first brake device has been operated by the driver.

The present application generally relates to a method and apparatus for application of a park hold assist system in a motor vehicle. In particular, the system is operative to receive an activation signal and to determine that the vehicle is in a park hold assist condition, such as inclined road surface, attached trailer or wheel rotation while transmission is in the park position. The system is operative to apply the hydraulic brakes in response to this condition thereby engaging a brake mechanism on all wheels.

A braking force control apparatus for a vehicle has a control unit that executes a braking force reduction control that controls a braking device such that a braking force is gradually reduced when it is determined that a drive request for driving the vehicle is generated during execution of the braking force holding control for controlling the braking device to hold a braking force applied to the vehicle when the vehicle stops in the uphill direction on a slope. The control unit controls the braking device such that the braking force during, execution of the braking force reduction control is larger when the drive request is generated by the driving support control is than when the drive request is generated by the driver's driving operation.

Disclosed herein are control apparatus for electronic parking brake system and control method thereof. The control apparatus for electronic parking brake system and control method includes an inputter configured to receive an abnormal operation signal from an electronic stability control (ESC) system when a vehicle stopping control function is abnormally performed in the ESC system; a determiner configured to determine whether an operation availability signal of an electronic parking brake (EPB) system is input from the EPB system, when the abnormal operation signal is input; and a controller configured to transmit a control command to the EPB system to activate the EPB system and have the EPB system perform a braking operation, when the operation availability signal of the EPB is input.

A brake control apparatus for a vehicle performs hill hold control to activate a brake apparatus, without requiring any braking operation of a driver, to thereby prevent the vehicle from moving backward on an uphill, when the uphill on which the vehicle has stopped has an inclination greater than a brake activation threshold. The apparatus detects a structure around the vehicle. In addition, the apparatus changes an execution condition of the hill hold control such that when the structure is detected around the vehicle, the hill hold control is more easily to be started to be performed as compared with a case where the structure is not detected.

A method for engaging a parking lock of a motor vehicle having a service brake and a parking brake, in which the parking lock is engaged, while by means of a braking device of the motor vehicle, the rolling away of the motor vehicle is at least restricted, wherein as the braking device, an additionally provided braking device of the motor vehicle, different from the service brake and from the parking brake, is used.