A braking system for an automobile includes a controller adapted to independently control the brake pressure at each wheel of the automobile when an operator of the automobile applies the brakes, a first sensor adapted to measure an angular position of a steering wheel of the automobile and communicate the angular position of the steering wheel to the controller, and a second sensor adapted to measure a speed of the automobile and communicate the speed of the automobile to the controller, the controller further adapted to reduce the brake pressure at an inboard turning wheel when the speed of the vehicle is zero and the angular position of the steering wheel exceeds a pre-determined value.

A braking control device of a vehicle in which a braking force generator is connected to a differential mechanism to which a plurality of wheels is connected, and a friction brake is provided for each of the wheels includes a controller configured to control braking forces of the braking force generator and the friction brake. The controller is configured to: detect the wheel having a tendency of locking in which a slip ratio is larger than a predetermined determination value in a state where the braking force is transmitted to each of the wheels from the braking force generator via the differential mechanism; and reduce the tendency of locking by changing the braking force of the friction brake that is provided for the other wheel connected to the differential mechanism.

In the case that the road surface is determined to have different friction coefficients on the left and right wheels, this braking control device performs antiskid control for adjusting the increase slope of front wheel braking torque on the side with the higher friction coefficient. A steering angle sensor detects the steering angle, and a yaw rate sensor detects the yaw rate. The device calculates a reference turning amount on the basis of the steering angle, calculates an actual turning amount on the basis of the yaw rate, and sets the increase slope on the basis of the deviation between the reference turning amount and the actual turning amount. Also, if this deviation becomes larger, a correction is made such that the set increase slope becomes smaller. Further, if the deviation becomes smaller, a correction is made such that the set increase slope becomes larger.

Systems and methods for controlling a vehicle may include receiving sensor data from a plurality of sensors, the sensor data including vehicle parameter information for the vehicle; using the sensor data to determine a vehicle state for a vehicle negotiating a corner, wherein the vehicle state comprises information regarding a magnitude of an effective understeer gradient for the vehicle; computing a yaw moment required to correct the effective understeer gradient based on the magnitude of the effective understeer gradient; and applying a brake torque to a single wheel of the vehicle, wherein an amount of brake torque applied is sufficient to lock up the single wheel to create a yaw moment on the vehicle to achieve the computed yaw moment required to correct the effective understeer gradient.

A number of variations are discloses including a system and method including using differential braking to increase evasive lateral maneuver capability.

A number of variations are discloses including a system and method including using differential braking to reduce steering effort during loss of assist.

A method in which the driving behavior of a vehicle is influenced depending on surroundings data in order to support an evasive maneuver as soon as a risk of collision is detected using the data from surroundings sensors and vehicle sensors. The vehicle has an electronically regulated braking system which allows a driver-independent build-up and a modulation of the braking forces on the individual wheels of the vehicle, and a steering input by the drive is supported in the event of a detected risk of collision by a driver-independent braking intervention. A brake slip of at least one wheel of the vehicle is limited to a first slip threshold in a first phase of the evasive maneuver and to a second slip threshold in a second phase of the evasive maneuver, wherein the first slip threshold is smaller than the second slip threshold. The invention further relates to an electronic controller.

A vehicle reverse traveling speed limiting apparatus includes a fluid pressure detector, a brake driver, a limiting speed setter, and a reverse traveling speed controller. The fluid pressure detector detects a brake fluid pressure. The brake driver causes a main brake to perform braking based on a set instruction fluid pressure. The limiting speed setter sets a limiting speed upon reverse traveling. The reverse traveling speed controller executes torque and brake controls to allow an actual vehicle speed of a vehicle to be maintained at the limiting speed. When the actual vehicle speed is higher than the limiting speed, the reverse traveling speed controller sets the instruction fluid pressure to allow the actual vehicle speed to be converged to the limiting speed, and executes, even when the brake fluid pressure is higher than the instruction fluid pressure, the brake control to allow the instruction fluid pressure to be maintained.

A four wheel steering vehicle (1), in which front wheels (2f) and rear wheels (2r) can be steered in response to a steering input from a steering wheel (11), includes a rear wheel steering control unit (50) that variably controls a rear wheel steering device such that the rear wheels are steered in a prescribed relation to a steered angle of the front wheels. When the steering input is determined while the front wheel brake and the rear wheel brake are engaged, the rear wheel steering control unit disengages the rear wheel brake and steers the rear wheels. When the fore and aft inclination angle detected by an inclination sensor (40) provided on the vehicle is greater than a threshold value, the rear wheel steering control unit prohibits a steering of the rear wheels and keeps the rear wheel brake engaged even if the steering input is determined.

In a braking force control system for a vehicle having a braking system capable of controlling braking force of each of right and left front wheels and right and left rear wheels independently of one another, when anti-skid control starts being performed on one of the front wheels while the vehicle is running on a road having different coefficients of friction on the left side and right side thereof, increase of the braking force of the other front wheel laterally opposite to the above-indicated one front wheel is suppressed, and increase of the braking force of at least one of the right and left rear wheels is suppressed.