Anti-lock brake system

Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal

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Details

180197, 180233, 180244, 188181R, 303 92, 303100, 303116, 303119, 303 10, 303 68, B60K 2816, B60T 832, B60T 1312

Patent

active

048611182

ABSTRACT:
An anti-lock brake system (ABS) for a road vehicle is equipped with a wheel slip control system (ASR) and a hydraulic dual circuit brake system having front axle/rear axle brake static brake circuits, one brake circuit being allocated to the driven (rear) wheels of the vehicle and one to the non-driven (front) wheels. The system has two high-pressure pumps, one for each of the two brake circuits and which, in control phases of the ABS, brake fluid can be fed into the output pressure spaces of the brake unit and wherein the high-pressure pump allocated to the rear axle brake circuit is also utilized as auxiliary pressure source for the ASR. At the front axle brake circuit, the ABS operates on the feedback principle and at the rear axle brake circuit it operates on the discharge principle.

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patent: 4805965 (1989-02-01), Jonner et al.

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