Control apparatus for vehicular automatic transmission

Details Control apparatus for vehicular automatic transmission Control apparatus for vehicular automatic transmission

1997-09-23

1999-12-07

Marmor, Charles A.

Interrelated power delivery controls, including engine control

Transmission control

Transmission controlled by engine

477155, 477117, F16H 6106

Patent

active

059974362

ABSTRACT:
Both shocks and time lag at the time of gear-in are reduced. For that purpose, the hydraulic pressure of a hydraulic engaging element to be engaged at the time of gear-in (in-gear pressure) QING is increased relatively rapidly at the beginning of gear-in. The speed of increase of QING is lowered after the input and output speed ratio "Gratio" of a transmission has exceeded a predetermined value YINGS which works as a basis for discriminating the start of engagement of the hydraulic engaging element.

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