Brake control system for automotive vehicles

Details Brake control system for automotive vehicles Brake control system for automotive vehicles

1992-04-17

1993-12-28

Oberleitner, Robert J.

Fluid-pressure and analogous brake systems

Multiple control

3031192, 3031171, B60T 840, B60T 1536

Patent

active

052733483

ABSTRACT:
A brake control system for automotive vehicles, comprises a master cylinder, a wheel cylinder, an external hydraulic pressure source for generating an external hydraulic pressure, an electronically controlled hydraulic pressure control valve connected to the external hydraulic pressure source, for converting the external hydraulic pressure to a control pressure, a hydraulic pressure multiplier unit connected to the hydraulic pressure control valve for generating a wheel-cylinder pressure higher than the master-cylinder pressure by multiplying the control pressure, and a spool biasing force restricting mechanism for restricting the magnitude of a spool biasing force created by the master-cylinder pressure to a designated upper limit only when the master-cylinder pressure exceeds a predetermined pressure level sufficient to provide a maximum wheel-cylinder pressure.

REFERENCES:
patent: 5163474 (1992-11-01), Rizk
patent: 5221126 (1993-06-01), Inoue

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