Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1985-07-11
1987-02-17
Reger, Duane A.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
303111, B60T 808
Patent
active
046434925
ABSTRACT:
A brake system with slip control for vehicles with front-wheel drive or all-wheel drive comprises two hydraulically isolated pressure-medium circuits (2, 3), to which one front wheel and one rear wheel each (VL, HR; VR, HL) are connected. Through a pair of valves (17, 19; 18, 20) consisting of inlet valve and outlet valve, the braking pressure in the two hydraulic pressure-medium circuits is varied upon recognition of an imminent locked condition. The braking pressure in the front-wheel brake is maintained constant by one additional valve (21, 22) connected upstream of the front-wheel brakes (4, 6) in the event of decrease or in the event of further increase of the pressure in the rear-wheel brake (5, 7) that is connected to the same hydraulic pressure-medium circuit (2 or 3, respectively).
REFERENCES:
patent: 4418966 (1983-12-01), Hattwig
patent: 4460220 (1984-07-01), Petersen
patent: 4523792 (1985-06-01), Belart et al.
Batistic Ivica
Belart Juan
Fennel Helmut
Seibert Wolfram
Alfred Teves GmbH
Michals William J.
Raden James B.
Reger Duane A.
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