Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1985-10-21
1987-05-12
Caldwell, Sr., John W.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
303DIG4, 303104, B60T 858
Patent
active
046644539
ABSTRACT:
A brake control system is described that prevents a wheel lockup condition by identifying the brake pressure that produces the maximum possible braking effort during each brake pressure application period and applying a predetermined fraction of the identified pressure after an incipient wheel lockup condition is sensed. The predetermined fraction provides for adaptive adjustment of the brake pressure if the identified brake pressure is in error until a pressure is applied that produces substantially the maximum possible braking effort.
REFERENCES:
patent: 3131975 (1964-05-01), Smith et al.
patent: 3663069 (1972-05-01), Perry et al.
patent: 3744852 (1973-07-01), Riordan
patent: 4094555 (1978-06-01), Byrne et al.
Hopkins Harland G.
Kade Alexander
Salman Mutasim A.
Caldwell Sr. John W.
Conkey Howard N.
General Motors Corporation
Oberley Alvin
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