Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1989-02-01
1990-02-13
Butler, Douglas C.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
303110, 303119, 303DIG4, B60T 832, B60T 844, B60T 1120, B60T 1316
Patent
active
049001051
ABSTRACT:
The brake system includes a brake pressure generator with a master cylinder connected to wheel brake cylinders through master brake conduits; auxiliary pressure pumps having pump outlets in communication with the master brake conduits and pump inputs in communication with a pressure fluid reservoir through inlet conduits; wheel sensors and electronic circuits for determining the wheel rotating pattern and for generating electrical brake pressure control signals capable of controlling pressure fluid inlet and outlet valves disposed in the conduit system for slip control. The traction slip control system insures, with little effort involved, assembling and disassembling capabilities, and, in disassembled condition, complying with the control principle for a driven front axle and, in assembled condition, complying with the traction slip control mode for a driven rear axle in all speed ranges. The present invention provides an accumulator with a single connection in communication, with the master brake conduit, with an electromagnetic valve having a pressure monitoring switch coupled thereto and provided with a bypass enclosing a release valve located between the connection and the accumulator.
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Burgdorf Jochen
Goossens Andre
Reinartz Hans D.
Steffes Helmut
Volz Peter
Alfred Teves GmbH
Butler Douglas C.
Seitter Robert P.
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