Automatic transmission control system for automobiles

Details Automatic transmission control system for automobiles Automatic transmission control system for automobiles

1997-03-31

1999-07-06

Wright, Dirk

Interrelated power delivery controls, including engine control

Transmission control

Transmission controlled by engine

477148, 477158, 477143, F16H 6100

Patent

active

059191147

ABSTRACT:
An automatic transmission control system for an automatic transmission including a hydraulic pressure control circuit which supplies locking and unlocking pressures selectively to a plurality of friction coupling elements to lock and unlock the selected friction coupling elements, changing a torque transmission path in a transmission gear mechanism to provide available gears, a specific one of which is achieved by locking and unlocking simultaneously specific friction coupling elements.

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patent: 5611752 (1997-03-01), Kamada et al.
patent: 5647819 (1997-07-01), Fujita et al.
patent: 5667457 (1997-09-01), Kuriyama et al.
patent: 5725455 (1998-03-01), Kamada et al.

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