G - Physics – 05 – D
Patent
G - Physics
05
D
341/73.23
G05D 13/62 (2006.01) B60T 8/1763 (2006.01) B60T 8/88 (2006.01)
Patent
CA 1092683
WHEEL LOCK CONTROL SYSTEM Abstract of the Disclosure: A wheel lock control system for cyclically releasing and applying the wheel brakes to prevent wheel lock during braking. A deceleration switch produces a control signal to effect a wheel brake release when the wheel speed exceeds a predetermined deceleration threshold representing an incipient wheel lock condition. A cycle depth integrator provides a cycle depth signal that is representative of the magnitude of the change of wheel speed after a brake release. A cycle depth comparator is responsive to the control signal and the cycle depth signal to effect wheel brake release during the control signal and to maintain the wheel brake release as a function of the cycle depth signal magnitude and duration and wheel speed characteristics to provide for adaptation to all vehicle and road conditions. A reset circuit cooperates with the cycle depth integrator to maintain a release to provide for wheel speed recovery when the average wheel deceleration exceeds a maximum possible vehicle deceleration after a time period dependent upon the magnitude of the average wheel deceleration and the time period that the average wheel decele- ration exceeds the maximum possible vehicle deceleration.
284708
Peterson Philip R.
Taylor David W.
General Motors Corporation
Gowling Lafleur Henderson Llp
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