| 摘要 |
A brake pressure control for use with automotive vehicles having an anti-locking control system (ABS) and/or a traction slip control system (ASR) is described. Provided in the wheel cylinder (16) is a pressure fluid circuit for pressure modulation, which contains, in addition to the wheel cylinder and the pressure fluid pump, an inlet valve disposed upstream of the wheel cylinder, an outlet valve disposed downstream of the wheel cylinder and a pressure fluid accumulator disposed between the outlet valve and the intake side of the pump, with the accumulator, during the anti-locking control mode (ABS-mode) acting as a pressure relief and, also, isolating the rest of the fluid circuit from the master cylinder and the pressure fluid accumulator. A closed circuit is attained in all phases of the anti-locking control mode and, during the phase of pressure decrease in the anti-locking mode, a very rapid pressure decrease in the wheel cylinder is achieved.
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