| 摘要 |
A road vehicle hydraulic brake system, having a master brake cylinder for generating a master cylinder pressure based on the braking intent of a driver of the vehicle, having a hydraulic unit connected between the master brake cylinder and at least one wheel brake cylinder of at least one wheel, and a method of control thereof are described. The hydraulic unit, with which a brake pressure boost is achievable by generating in the at least one wheel brake cylinder a wheel cylinder pressure greater than the master cylinder pressure, has a system of actuatable valves and at least one hydraulic pump. A differential pressure valve between the master brake cylinder and the hydraulic unit opens or closes the hydraulic connection between the master brake cylinder and the hydraulic unit at a predetermined pressure difference between the master cylinder pressure and the wheel cylinder pressure, to increase the wheel cylinder pressure.
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