Transmission control method for a vehicle

Details Transmission control method for a vehicle Transmission control method for a vehicle

1994-03-10

1995-12-26

Marmor, Charles A.

Planetary gear transmission systems or components

Fluid drive or control of planetary gearing

Fluid controlled mechanical clutch or brake

475131, F16H 6100

Patent

active

054782899

ABSTRACT:
A transmission control method for a vehicle, with which torque starvation does not occur during shifting operation, and wherein shift between drive ranges in forward and reverse respectively is performed by engagement and disengagement of forward and reverse drive clutches as well as engagement and disengagement of at least first and second drive clutches, the first drive clutch to be disengaged is brought into a half-engaged state and the second drive clutch to be engaged is brought into a half-engaged state, and then the first drive clutch in a half-engaged state is fully disengaged and the second drive clutch in a half-engaged state is fully engaged.

REFERENCES:
patent: 5311795 (1994-05-01), Yoshimura et al.

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