Shift control device for automatic transmission

Details Shift control device for automatic transmission Shift control device for automatic transmission

1998-01-14

1999-08-03

Marmor, Charles A.

Interrelated power delivery controls, including engine control

Transmission control

Transmission controlled by engine

477156, 477164, F16H 6126

Patent

active

059317612

ABSTRACT:
In a driven state, a hydraulic pressure of disengagement side is set at a stroke pressure, a one-way clutch in an operating state is over-run, an engine rotation speed is in an idle state, and an automatic transmission is in a neutral state. In a drive state, the hydraulic pressure of disengagement side is controlled so that a difference between an engine rotation speed and an input rotation speed reaches a difference between the both rotation speeds at a start of the shift control. In a state of a synchronized rotation after the shift, the hydraulic pressure of disengagement side is controlled so that the input rotation reaches the synchronized rotation.

REFERENCES:
patent: 4098148 (1978-07-01), Wayman
patent: 5203235 (1993-04-01), Iizuki

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