Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1988-12-15
1989-07-11
Butler, Douglas C.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
303 93, 303116, 303119, B60T 832, B60T 844, B60T 1312, B60K 2816
Patent
active
048465321
ABSTRACT:
A brake system having anti-lock and traction control, which includes a master brake cylinder that can be subjected to pressure from a brake pedal, with at least one brake line connected to corresponding wheel brake cylinders. A valve is incorporated into the respective brake line via which the wheel brake cylinder connected to this brake line can be connected via a return pump to the brake line. Upstream of the return pump, a pressure line is connected to branch off to a pressure chamber of a vacuum cell, and brake fluid can be supplied from the pressure chamber to the return pump via this pressure line to insure that the return pump is always supplied with fluid.
REFERENCES:
patent: 4509802 (1985-04-01), Solleder et al.
patent: 4575161 (1986-03-01), Vanzant et al.
patent: 4636009 (1987-01-01), Tsuru et al.
patent: 4750790 (1988-06-01), Klein
patent: 4755008 (1988-07-01), Imoto et al.
patent: 4778225 (1988-10-01), Rudolph et al.
patent: 4796957 (1989-01-01), Wakata et al.
Friedow Michael
van Zanten Anton
Butler Douglas C.
Greigg Edwin E.
Robert & Bosch GmbH
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