Brake valve, compressed-air brake system having the brake valve, and method for producing the brake valve

    公开(公告)号:US11325575B2

    公开(公告)日:2022-05-10

    申请号:US16755885

    申请日:2018-09-06

    Applicant: WABCO GmbH

    Abstract: A brake valve for a compressed air brake system of a utility vehicle includes a compressed air input configured to connect to a system pressure, a compressed air output configured to connect a brake control line, and at least one sensor configured to determine a brake valve actuation travel of an actuating element of the brake valve with a working interconnection to the brake pedal. The brake valve further includes a characteristic curve memory storing two stored characteristic curves and/or dependences and at least one determination device. The brake valve is configured to output at least two useful sensor signals, a first of which represents a brake valve output pressure and a second of which represents a percentage actuation position of the actuating element. The at least one sensor is configured to generate an actuating signal depending on the brake valve actuation travel of the actuating element.

    METHOD AND BRAKING SYSTEM FOR ELECTRONICALLY SETTING THE BRAKE FORCE DISTRIBUTION AND MOTOR VEHICLE HAVING SUCH A BRAKING SYSTEM

    公开(公告)号:US20200094799A1

    公开(公告)日:2020-03-26

    申请号:US16619958

    申请日:2018-04-24

    Applicant: WABCO GmbH

    Abstract: A method for electronically setting the brake force distribution of a desired total braking force in partial braking forces to the axle of a motor vehicle in dependence on the differential slip is provided. The differential slip is detected as the difference of the slip values of a variable representing the slip at the respective axle and is assigned to a relevant pair of axles. One of the axles is selected as a reference axle and the respective differential slip of a pair of axles is determined as the difference of the slip value at the reference axle and of the respective slip value of one of the further axles.

    Method and device for electronically controlling a vehicle deceleration in an ABS braking system

    公开(公告)号:US10414387B2

    公开(公告)日:2019-09-17

    申请号:US15558208

    申请日:2016-02-26

    Applicant: WABCO GmbH

    Abstract: A method for controlling a vehicle deceleration in a vehicle comprising an ABS braking system includes detecting a setpoint vehicle deceleration predetermined by a driver; establishing a maximum deceleration and a minimum deceleration, in each case as a function of the detected setpoint vehicle deceleration; detecting an actual vehicle deceleration; and controlling a brake pressure at wheel brakes of a vehicle axle to be controlled as a function of the detected actual vehicle deceleration by controlling ABS brake valves. Controlling the brake pressure at the wheel brakes of the vehicle axle as a function of the detected actual vehicle deceleration comprises: increasing the brake pressure at the wheel brakes when the actual vehicle deceleration is less than the minimum deceleration, and limiting the brake pressure at the wheel brakes when the actual vehicle deceleration is greater than the maximum deceleration.

    METHOD AND DEVICE FOR ELECTRONICALLY CONTROLLING A VEHICLE DECELERATION IN AN ABS BRAKING SYSTEM

    公开(公告)号:US20180072288A1

    公开(公告)日:2018-03-15

    申请号:US15559063

    申请日:2016-05-12

    Applicant: WABCO GmbH

    Abstract: A method for controlling a vehicle deceleration in a vehicle with an ABS brake system. The method includes detecting a target vehicle deceleration specified by a driver; defining a maximum deceleration and a minimum deceleration, each depending on the detected target vehicle deceleration; detecting an actual vehicle deceleration; and controlling a braking pressure on wheel brakes of a first vehicle axle and a second vehicle axle depending on the detected actual vehicle deceleration by actuation of ABS brake valves. Controlling the braking pressure by the actuation of the ABS brake valves comprises controlling the braking pressure on the wheel brakes of the second vehicle axle depending on a detected actual differential slip if the actual vehicle deceleration is less than the maximum deceleration and greater than the minimum deceleration, wherein the actual differential slip indicates the difference in a rotational behavior of the first vehicle axle.

    Method and device for electronically controlling a vehicle deceleration in dependence on a differential slip between two vehicle axles

    公开(公告)号:US10538227B2

    公开(公告)日:2020-01-21

    申请号:US15559062

    申请日:2016-04-26

    Applicant: WABCO GmbH

    Abstract: A method for controlling a vehicle deceleration depending on a differential slip between two vehicle axles in a vehicle with an ABS brake system includes detecting at least one of a target vehicle deceleration specified by the driver and an actual vehicle deceleration; and controlling a braking pressure on wheel brakes of a vehicle axle to be controlled by actuation of ABS brake valves in such a way that the braking pressure on the wheel brakes of the vehicle axle to be controlled is controlled depending on a detected actual differential slip, so that the actual differential slip corresponds to a target differential slip. The actual differential slip indicates a difference in a rotational behavior of the vehicle axle to be controlled relative to a further vehicle axle. The target differential slip is dependent on at least one of the detected actual vehicle deceleration and the detected target vehicle deceleration.

    Method and device for electronically controlling a vehicle deceleration in an ABS braking system

    公开(公告)号:US10239505B2

    公开(公告)日:2019-03-26

    申请号:US15559063

    申请日:2016-05-12

    Applicant: WABCO GmbH

    Abstract: A method for controlling a vehicle deceleration in a vehicle with an ABS brake system. The method includes detecting a target vehicle deceleration specified by a driver; defining a maximum deceleration and a minimum deceleration, each depending on the detected target vehicle deceleration; detecting an actual vehicle deceleration; and controlling a braking pressure on wheel brakes of a first vehicle axle and a second vehicle axle depending on the detected actual vehicle deceleration by actuation of ABS brake valves. Controlling the braking pressure by the actuation of the ABS brake valves comprises controlling the braking pressure on the wheel brakes of the second vehicle axle depending on a detected actual differential slip if the actual vehicle deceleration is less than the maximum deceleration and greater than the minimum deceleration, wherein the actual differential slip indicates the difference in a rotational behavior of the first vehicle axle.

Patent Agency Ranking