Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1995-06-05
1996-07-02
Butler, Douglas C.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
60545, 188358, 303 15, 3031134, 303900, 303155, B60T 1120, B60T 1128, B60T 1316, B60T 1366
Patent
active
055315097
ABSTRACT:
A vehicle brake system with a hydraulic brake booster. A booster pressure which is required for operating the brake booster is produced by throttling a flow of pressure medium which is supplied by a pump. For this purpose, a throttle valve is arranged between a pressure line which is connected to the pump and a return line which leads back to the pump, the adjustment of said pressure valve involves a building up of booster pressure in the pressure line by a solenoid, which booster pressure is applied to the brake booster. An electronic control unit which is connected to at least one sensor which outputs variable electric signal serves to control the throttle valve, the sensor detects activation of the brake pedal. For example, a pressure sensor which as a function of the boosting pressure supplies signals to the control unit which is developed to form a pressure controller and controls the throttle valve can be connected to the brake booster.
REFERENCES:
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patent: 4653814 (1987-03-01), Burgdorf
patent: 4667476 (1987-05-01), Takata et al.
patent: 4900103 (1990-02-01), Stegmaier
patent: 4914917 (1990-04-01), Schonlau
patent: 5044700 (1991-09-01), Willmann
patent: 5112115 (1992-05-01), Willmann et al.
Kellner Andreas
Schubert Peter
Butler Douglas C.
Geigg Ronald E.
Greigg Edwin E.
Robert & Bosch GmbH
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