Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1977-02-24
1978-06-06
Blix, Trygve M.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
303 22R, 303DIG1, B60T 802, B60T 818
Patent
active
040933164
ABSTRACT:
A combined vehicle antiskid and load-dependent brake control system in which digital control of the individual wheel brake pressure regulating valves is provided. These regulating valves may be operated individually or on a per axle basis to vary the brake pressure independent of the operator-controlled brake valve device. The load-dependent brake control portion of the system includes electronic control circuitry that is subject to the output signal of sensors, which monitor pressure supplied by the brake valve device, actual brake cylinder pressure and the load supported by the vehicle rear axle, in order to operate the regulating valve of at least one wheel brake cylinder such as to cause the wheel brake pressure to follow a predetermined curve that differs from a normal brake pressure buildup curve.
REFERENCES:
patent: 3632177 (1972-01-01), Packer
patent: 3802745 (1974-04-01), Strifler
patent: 3890013 (1975-06-01), Coiner
Blix Trygve M.
Eisenzopf Reinhard J.
McIntire, Jr. R. W.
WABCO Westinghouse GmbH
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