Slip-controlled hydraulic vehicle brake system

摘要

A slip-controlled hydraulic vehicle brake system includes a first hydraulic pump configured to draw brake fluid out of wheel brakes or out of a hydraulic accumulator connected to the wheel brakes. The brake system also includes two further hydraulic pumps configured to be connected to a brake master cylinder for a rapid pressure buildup. To pump against a high brake pressure while the vehicle brake system is actuated, only the first hydraulic pump is used, while the other two hydraulic pumps are separated from the brake master cylinder and run “at idle” at the same time. The necessary mechanical driving power of the hydraulic pumps is thereby reduced, and a very rapid pressure buildup is nevertheless possible.

主权项

1. A slip-controlled hydraulic vehicle brake system, comprising:
a brake master cylinder; and a brake circuit comprising:
a first hydraulic pump including a first suction side hydraulically connected to a wheel brake via a pressure lowering valve; anda second hydraulic pump including a second suction side hydraulically connected to the brake master cylinder via an intake valve, wherein the first suction side of the first hydraulic pump and the second suction side of the second hydraulic pump are separated hydraulically from one another, and wherein a first pressure side of the first hydraulic pump and a second pressure side of the second hydraulic pump both discharge into a common hydraulic line.