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

A vehicle braking device includes a first supply device that supplies brake fluid to wheel cylinders, a first supply path that connects the first supply device and the wheel cylinders, and first and second electromagnetic valves provided on the first supply path. The first electromagnetic valve is disposed on the first supply path such that a seating direction of the first electromagnetic valve and a brake fluid supply direction are opposite each other, the seating direction is a direction in which a valve body is seated on a valve seat, and the brake fluid supply direction is a direction in which the brake fluid flows from the first supply device to the wheel cylinders through the first supply path. The second electromagnetic valve is disposed on the first supply path such that a seating direction of the second electromagnetic valve and the brake fluid supply direction are the same.

A vehicle braking device includes a first supply device that supplies brake fluid to wheel cylinders, a first supply path that connects the first supply device and the wheel cylinders, and first and second electromagnetic valves provided on the first supply path. The first electromagnetic valve is disposed on the first supply path such that a seating direction of the first electromagnetic valve and a brake fluid supply direction are opposite each other, the seating direction is a direction in which a valve body is seated on a valve seat, and the brake fluid supply direction is a direction in which the brake fluid flows from the first supply device to the wheel cylinders through the first supply path. The second electromagnetic valve is disposed on the first supply path such that a seating direction of the second electromagnetic valve and the brake fluid supply direction are the same.

A vehicle braking system including a control unit (340) which is operable to communicate with at least one sensor (320, 350), the sensor (320, 350) being operable to provide signals corresponding to a characteristic of a vehicle to the control unit (340), and the control unit (340) being in communication with a brake demand source (300) to receive brake demand data, and the control unit (340) also being in communication with a plurality of wheel end units, each wheel end unit including a brake torque control unit (310) which is operable to control an associated brake actuator to apply a braking torque dependent upon a signal received from the control unit (340).

A vehicle braking system including a control unit (340) which is operable to communicate with at least one sensor (320, 350), the sensor (320, 350) being operable to provide signals corresponding to a characteristic of a vehicle to the control unit (340), and the control unit (340) being in communication with a brake demand source (300) to receive brake demand data, and the control unit (340) also being in communication with a plurality of wheel end units, each wheel end unit including a brake torque control unit (310) which is operable to control an associated brake actuator to apply a braking torque dependent upon a signal received from the control unit (340).

Provided is a work vehicle capable of satisfying a user's demand to brake performance in a flexible manner. A wheel loader 1 comprises a controller 5 storing a plurality of control characteristics each of which is set such that a brake valve control pressure Pi of a solenoid proportional valve 45 increases as a pedal angle θ of a brake pedal 43 increases, and under the condition where a pedal angle θ is equal to or less than a predetermined pedal angle θ, an increase rate of the brake valve control pressure Pi with respect to the pedal angle θ varies. In a case where the pedal angle θ detected by a potentiometer 33 is equal to or less than the predetermined pedal angle θth, the controller 5, calculates the brake valve control pressure Pi based on the selected one control characteristic.

Provided is a work vehicle capable of satisfying a user's demand to brake performance in a flexible manner. A wheel loader 1 comprises a controller 5 storing a plurality of control characteristics each of which is set such that a brake valve control pressure Pi of a solenoid proportional valve 45 increases as a pedal angle θ of a brake pedal 43 increases, and under the condition where a pedal angle θ is equal to or less than a predetermined pedal angle θ, an increase rate of the brake valve control pressure Pi with respect to the pedal angle θ varies. In a case where the pedal angle θ detected by a potentiometer 33 is equal to or less than the predetermined pedal angle θth, the controller 5, calculates the brake valve control pressure Pi based on the selected one control characteristic.

This application provides a hydraulic adjustment unit, a brake system, an automobile, and a control method, to individually pressurize any brake pipe in a dual circuit brake pipe, to improve safety of a dual circuit brake system. This application is applicable to an intelligent car, a new energy car, a conventional car, or the like. In embodiments of this application, a second hydraulic chamber provides a braking force for a first group of brake wheel cylinders and through a first brake pipe provided with a first control valve, and provides a braking force for a second group of brake wheel cylinders and through a second brake pipe provided with a second control valve.

This application provides a hydraulic adjustment unit, a brake system, an automobile, and a control method, to individually pressurize any brake pipe in a dual circuit brake pipe, to improve safety of a dual circuit brake system. This application is applicable to an intelligent car, a new energy car, a conventional car, or the like. In embodiments of this application, a second hydraulic chamber provides a braking force for a first group of brake wheel cylinders and through a first brake pipe provided with a first control valve, and provides a braking force for a second group of brake wheel cylinders and through a second brake pipe provided with a second control valve.

The present disclosure relates to a device for operating an automated parking brake with an actuator for a motor vehicle, wherein the device comprises at least: a central control unit and an application-specific integrated circuit, which application-specific integrated circuit represents an interface between the control unit and the actuator. According to the disclosure, the device is characterized in that the application-specific integrated circuit has a functionally not changeable part and a part that can be functionally changed by means of program code, wherein the functionally changeable part is designed to carry out a specified error check. The disclosure further relates to a method for operating such a device.