Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1994-05-03
1995-01-17
Butler, Douglas C.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
303103, 303106, 303109, 303110, B60T 832
Patent
active
053820860
ABSTRACT:
An antilock brake system selectively, controllably applies and relieves braking force to and from a vehicle wheel. The system determines when the wheel exhibits a tendency to lock during the application of braking force, and when the wheel recovers from its tendency to lock after relief of braking force, and calculates a tuner time which represents the time elapsed between when the wheel recovers from one tendency to lock and when the wheel exhibits its next tendency to lock. When the wheel exhibits a tendency to lock, the braking force is initially relieved, and is thereafter increased as a function of the tuner time from a previous cycle.
REFERENCES:
patent: 4054328 (1977-10-01), Leiber et al.
patent: 4865399 (1989-09-01), Atkins et al.
patent: 5071200 (1991-12-01), McNinch, Jr.
Schnerer Peter
Tuck Brian
Butler Douglas C.
Kelsey-Hayes Company
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