Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1987-03-25
1989-02-21
Garrett, Robert E.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
303119, 60563, 60576, B60T 844, B60T 1540
Patent
active
048059668
ABSTRACT:
A hydraulic brake system includes a hydraulic power booster (11) and a master cylinder (12) connected downstream of the power booster (11). The pressure chamber (21) of the power booster (11) is pressurized by an auxiliary pressure which is dependent on the position of a pedal-actuated brake valve (19). A fast-fill cylinder (40) is can be pressurized by the dynamic pressure and with its aid the working chamber (16) of the master cylinder (12) can be supplied with additional pressure fluid in the initial phase of braking. The chamber (48) between the two piston steps (57, 58) of the fast-fill cylinder connects to the unpressurized supply reservoir (3) by way of a valve assembly (51) for synchronizing the movements of the master cylinder piston (43) and of the stepped piston (45) of the fast-fill cylinder (40). The valve assembly (51) is furnished with the wheel cylinder pressure as a control variable.
REFERENCES:
patent: 4483144 (1984-11-01), Steffes
patent: 4578951 (1986-04-01), Belart et al.
patent: 4641894 (1987-02-01), Belart
patent: 4671066 (1987-06-01), Belart
patent: 4678243 (1987-07-01), Leiber
patent: 4702530 (1987-10-01), Belart et al.
patent: 4708405 (1987-11-01), Belart et al.
patent: 4729609 (1988-03-01), Seibert et al.
patent: 4730877 (1988-03-01), Seibert et al.
patent: 4754605 (1988-07-01), Seibert et al.
Reinartz Hans-Dieter
Steffes Helmut
Alfred Teves GmbH
Garrett Robert E.
Kapsalas George
Raden James B.
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