Power assisted braking system with wheel lock control

Details Power assisted braking system with wheel lock control Power assisted braking system with wheel lock control

1985-02-04

1986-03-18

Butler, Douglas C.

Fluid-pressure and analogous brake systems

Multiple control

Fluid and electric

60545, 60567, 60581, 60593, 303 52, 303100, 303114, 303 68, B60T 844, F15B 700, F15B 1518

Patent

active

045764174

ABSTRACT:
A brake control system in which the master cylinder has two pressurizing chambers for each brake circuit. Three brake circuits are disclosed in detail. One piston of each set of pressurizing chambers is directly applied by brake pedal force. The other piston of each set receives brake pedal force through resilient means, with additional force supplied by suitable servomotors. The servomotors are individually controlled to provide power-assist when appropriate, or to decrease the forces supplied by them to control wheel slip or wheel spin.

REFERENCES:
patent: 2124363 (1938-07-01), Bertrand
patent: 2747372 (1956-05-01), York
patent: 2953936 (1960-09-01), Wiley
patent: 3021678 (1962-02-01), Pagley
patent: 3524683 (1970-08-01), Stelzer
patent: 3877226 (1975-04-01), Blum
patent: 4057301 (1977-11-01), Foster
patent: 4285199 (1981-08-01), Leiber
patent: 4351153 (1982-09-01), Kosmala
patent: 4395883 (1983-08-01), Melinat

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