Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1985-09-16
1987-04-21
Butler, Douglas C.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
303119, B60T 802
Patent
active
046591532
ABSTRACT:
A slip-controlled brake system, wherein the brake pedal effort is transmitted power-assisted to a master cylinder (10) to the wheel cylinders through several hydraulic fluid paths which allow shut off independently of one another. The behavior of rotation of the wheels and the vehicle speed are measured by sensors (S1 to S4), with the signals logically linked and control signals generated from them for electromagnetically actuatable directional control valves (15, 16, 17). In the event of a control action, the power assisted pedal effort (F) directed on the master cylinder (10) is temporarily compensated by an external power action in an opposite direction whereby the pressure increase in the master cylinder (10) is slowed down or decreased.
REFERENCES:
patent: 3371485 (1968-03-01), Reichard
patent: 3578820 (1971-05-01), Riordan
patent: 3608982 (1971-09-01), Inada et al.
patent: 4523792 (1985-06-01), Belart et al.
Alfred Teves GmbH
Butler Douglas C.
Michals William J.
Raden James B.
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