Multiple clutch control system

Details Multiple clutch control system Multiple clutch control system

1981-03-26

1983-03-15

Krizmanich, George H.

192 clutches and power-stop control

Transmission control and clutch control

Common control

192 8718, 74664, F16D 2510

Patent

active

043764738

ABSTRACT:
A multiple clutch control system for controlling the operation of clutches in a multiple speed transmission of the type wherein the gear ratio of the transmission is operated by engaging one hydraulically operated clutch while simultaneously disengaging another hydraulically operated clutch includes circuitry responsive to the hydraulic pressure applied to the just engaged or on going clutch for preventing the disengagement of the other clutch until the hydraulic pressure applied to the just engaged clutch exceeds a predetermined level indicating that the just engaged clutch has engaged.

REFERENCES:
patent: 2844043 (1958-07-01), Hobbs
patent: 2946241 (1960-07-01), Snyder
patent: 3110196 (1963-11-01), Hilpert et al.
patent: 3541791 (1970-11-01), Lvovsky
patent: 3618727 (1971-11-01), Cornet
patent: 3722646 (1973-03-01), Oguma
patent: 3762518 (1973-10-01), Hilpert
patent: 4219109 (1980-08-01), Ushijima et al.
patent: 4321991 (1982-03-01), Teijido

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