Brakes – Operators – Electric and mechanical
Patent
1988-11-18
1990-07-17
Reger, Duane A.
Brakes
Operators
Electric and mechanical
303114, 310 77, 318614, B60T 862
Patent
active
049415530
ABSTRACT:
A braking system for a vehicle has a stepper motor which controls the application of friction elements to a rotating part such as a brake drum. A control circuit controls the motor so that an output member is positioned by the motor in accordance with a variable demand signal. In one application, the control circuit receives a brake pressure signal from a transducer and controls the motor so as to compensate automatically for brake wear. In another application, the motor controls a debooster of an antilock brake system. The system also may include means for operating a parking brake.
REFERENCES:
patent: 2548731 (1951-04-01), Lehde
patent: 3790225 (1974-02-01), Wehde
Lucas Industries
Reger Duane A.
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