Controlled capacity torque converter clutch control system

Details Controlled capacity torque converter clutch control system Controlled capacity torque converter clutch control system

1994-09-02

1996-01-16

Bonck, Rodney H.

Interrelated power delivery controls, including engine control

Clutch control

Condition responsive control

477169, 477176, 477180, 192 33, B60K 4102

Patent

active

054843545

ABSTRACT:
A torque converter clutch control system has a plurality of operating modes among them an off mode wherein torque coupling is fluidic, a controlled capacity mode wherein the torque coupling is fluidic and mechanical during period of positive engine torque, an apply mode for smoothly transitioning from the OFF mode to the controlled capacity mode, and a release mode for smoothly transitioning from the controlled capacity mode to the off mode. Additionally, a lock mode is provided wherein torque coupling is mechanical via the torque converter clutch and a coast mode wherein torque coupling is mechanical and fluidic during periods of negative torque.

REFERENCES:
patent: 4582185 (1986-04-01), Grimes et al.
patent: 4706790 (1987-11-01), Lockhart et al.
patent: 5086894 (1992-02-01), Iizuka et al.
patent: 5314050 (1994-05-01), Slicker et al.
patent: 5378211 (1995-01-01), Slicker et al.

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