A method and device for a vehicle having wheels which are each assigned a sensor for generating wheel signals. The unit determines whether a wheel is affected by a failure of the corresponding wheel signal. The unit acquires wheel signals which are assigned to the wheels, and for a wheel affected by a wheel signal failure, the corresponding wheel signal is acquired in the form of a substitute signal. The unit calculates a target brake pressure for a wheel at which an increase in brake pressure is necessary. The increase in brake pressure takes place in accordance with the wheel signal which is obtained for the wheel and in accordance with the determination as to whether the wheel is affected by a wheel signal failure. The unit further determines a slip threshold for an anti-lock brake control operation applied to the wheel affected by the wheel signal failure.

A vehicle control system includes a powertrain electronic control unit and an electronic stability control unit that is connected to the powertrain electronic control unit via a vehicle communication bus. The vehicle powertrain includes a wheel, a wheel speed sensor that is configured to detect a speed of the wheel, an electric motor that is configured to drive the wheel, and an electric motor speed sensor that is configured to detect the speed of the electric motor. If the wheel speed sensor is operating normally, the electronic stability control unit controls the vehicle based on an output of the wheel speed sensor. However, if the wheel speed sensor is not operating normally, the electronic stability control unit controls the vehicle based on an output of the electric motor speed sensor.

Systems and methods for reducing energy consumption within a braking system are provided. In one example, a method includes detecting an energy reduction condition associated with the braking system of the vehicle; energizing a primary circuit apply valve and a secondary circuit apply valve of the braking system in response to detecting the energy reduction condition; de-energizing a motor of a slave cylinder of the braking system in response to energizing the primary circuit apply valve and the secondary circuit apply valve; and de-energizing the primary circuit apply valve and the secondary circuit apply valve of the braking system in response to de-energizing the motor of the slave cylinder.

A brake system for a vehicle is provided to independently adjust a braking pressure of each wheel. The system includes a hydraulic pressure brake driven by two actuators and a sub-cylinder and valve configurations that are disposed in the peripheral flow path thereof to eliminate the pressure unbalance generated in the hydraulic pressure brake.

A brake system comprises a hydraulic braking device configured to generate a hydraulic braking force; and a regenerative braking device configured to generate a regenerative braking force by an electric motor; wherein the hydraulic braking device comprises a master cylinder configured to generate a hydraulic pressure corresponding to a displacement amount of a brake pedal by discharging a brake oil; a plurality of valves disposed in a flow path connecting a plurality of wheel cylinders and the master cylinder; an accumulator disposed in the flow path; and an electronic control unit (ECU) configured to control the plurality of valves so that the brake oil discharged from the master cylinder is stored in the accumulator, and to transmit a request signal for generating the regenerative braking force to the regenerative braking device.

The disclosure provides a trailer brake system that includes a sensor system and a brake control unit. The sensor system is supported by a trailer and includes at least one wheel speed sensor associated with each wheel of the trailer. The brake control unit is supported by the trailer and is in communication with a tow vehicle configured to tow the trailer. The brake control unit is configured to: receive sensor data from the sensor system, and receive a brake signal from the tow vehicle indicative of a driver pressing a brake pedal of the tow vehicle. The brake control unit is also configured to: determine, for each brake, a hydraulic pressure based on the sensor data and the brake signal; and apply pressure by way of brake lines to the brake associated with each wheel, based on the hydraulic pressure.

This device is magnetic brake assist, traction control and forward assist. It uses magnets inserted in the vehicles rims and in a stationary hub bolted behind the wheels hub and brake disk; to either slow the rotation of the tire down or speed the rotation up for braking and or for forward assist.

A brake fluid pressure control device for vehicles with bar handle which is configured to start a holding control of a fluid pressure of a wheel brake according to wheel deceleration calculated based on a wheel speed of the vehicle is provided. In the brake fluid pressure control device, the vehicle includes an acceleration sensor which is configured to detect acceleration in a front-rear direction of the vehicle, acceleration, detected by the acceleration sensor, which occurs in a rearward direction when the vehicle is decelerating is detected as a positive value, and the holding control is started when it is judged that the acceleration detected by the acceleration sensor is larger than or equal to a detection acceleration threshold value and the wheel deceleration is smaller than or equal to a wheel deceleration threshold value.

A pump assembly for generating a brake pressure in a hydraulic slip-controlled power vehicle braking system, including a fluid sensor between an electric motor and a piston cylinder unit with the aid of which a small brake fluid quantity inadvertently leaking from the piston cylinder unit in the form of leakage is ascertainable before it affects a function of an electronic control or the electric motor.

A vehicle starter aid system is provided for a vehicle having at least one driven axle and at least one non-driven axle. An electrically controllable brake system generates brake application signals as a function of input signals for the wheel brake actuators on the at least one driven axle. The inputs signals are received from a rotational speed sensor of the at least one non-driven axle and at least one signal-generator which generates signals which represent intended driving away of the vehicle from the stationary state and are different from the wheel rotational speed signals. An electronic brake control unit controls application of the wheel brake actuators of the at least one driven axle if the rotational speed signals of the rotational speed sensor correspond to zero wheel rotational speed and at the same time the signals of the signal-generator indicate the intended driving away of the vehicle.