192 clutches and power-stop control – Clutches – Progressive engagement
Patent
1984-02-29
1985-08-20
Favors, Edward G.
192 clutches and power-stop control
Clutches
Progressive engagement
192 003, 361152, F16D 1106
Patent
active
045358796
ABSTRACT:
A smooth, optimum engagement of a pressure-operated actuator, such as a brake or clutch, is obtained by producing a pulse width modulated signal, having a gradually changing duty cycle, which is then used to control a three-way on/off solenoid valve to which is supplied pressurized fluid such as air. The solenoid valve is rapidly switched between pressure in and exhaust out in accordance with the changing duty cycle in order to develop a gradually increasing fluid pressure for application to the actuator.
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Borg-Warner Corporation
Favors Edward G.
Tracy James E.
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