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Title:
DUAL-CIRCUIT HYDRAULIC BRAKING SYSTEM WITH SLIP CONTROL FOR MOTOR VEHICLES
Document Type and Number:
WIPO Patent Application WO/1993/011009
Kind Code:
A1
Abstract:
The invention relates to a dual-circuit hydraulic braking system with slip control for motor vehicles with a first and a second braking pressure sensor (8) with at least one main pressure line (9, 9') connecting a wheel brake (2, 2', 5, 5'), a first and a second pressure medium return line (7, 7') connected to at least one wheel brake, in which normally open inlet valves (12, 12', 13, 13') are fitted in the two main pressure lines upstream of the wheel brakes and normally closed outlet valves (1, 1', 4, 4') are fitted in the two pressure medium return lines downstream of the wheel brakes, the outlet valve (1, 1') of the first brake circuit (I) has a switchable direct hydraulic connection between the braking and starting slip-controlled wheel brake (2, 2') and an unpressurised return tank (3) and the outlet valve (4, 4') of the second brake circuit (II) has a switchable hydraulic connection between the appropriate wheel brake (5, 5') and a low-pressure storage unit (6) upstream of the auxiliary pressure pump system. This provides reliable drive and braking slip-controlled brake system with simple means which also permits the use of a combined central valve and sleeve seal in the tandem master cylinder.

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Inventors:
SPAETH ROLF (DE)
Application Number:
PCT/EP1992/002665
Publication Date:
June 10, 1993
Filing Date:
November 19, 1992
Export Citation:
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Assignee:
TEVES GMBH ALFRED (DE)
International Classes:
B60T8/34; B60T8/38; B60T8/42; B60T8/48; (IPC1-7): B60T8/48
Foreign References:
FR2626230A11989-07-28
Attorney, Agent or Firm:
ITT AUTOMOTIVE EUROPE GMBH (Frankfurt am Main, DE)
ITT AUTOMOTIVE EUROPE GMBH (Frankfurt am Main, DE)
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