Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1987-08-10
1989-02-14
Kashnikow, Andres
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
303 92, 303 10, 60464, 60582, B60T 840, B60T 888, F16D 3102
Patent
active
048042366
ABSTRACT:
A hydraulic brake system with anti-skid control and/or traction slip control has a braking pressure generator (1, 21), a pressure compensation reservoir (4, 4',24, 24', 42), braking pressure control valves (7, 8 V.sub.1 -V.sub.4, AV.sub.1 -AV.sub.4) by which pressure medium can be tapped from the wheel brakes of the controlled wheels in the braking pressure reduction phase. Further, there is provided an auxiliary pressure supply system (10, 10') by which, in case of control, it is possible to supply pressure medium into the wheel brakes. To increase the operational reliability of the brake system, a pressure compensation chamber (18, 28, 28', 28", 39, 39') with a non-return valve (19, 29, 29', 29", 44, 46) connected upstream and opening toward the pressure compensation chamber is inserted into the pressure medium paths from the pressure compensation reservoir (4', 24, 24', 42) to the auxiliary pressure supply system. The outputs of the outlet valves (AV, AV.sub.1 -AV.sub.4, AV.sub.1 '-AV.sub.4 ') lead into said pressure compensation chamber (18, 28, 28', 28", 39, 39').
REFERENCES:
patent: 4025124 (1977-05-01), Fuchs
patent: 4395073 (1983-07-01), Arikawa et al.
patent: 4402554 (1983-09-01), Belart
patent: 4456309 (1984-01-01), Rath
patent: 4627671 (1986-12-01), Matsui et al.
Beller Hans-Albert
Burgdorf Jochen
Reinartz Hans-Dieter
Weise Lutz
Alfred Teves GmbH
Kashnikow Andres
Newholm Timothy
Raden James B.
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