Torque converter lockup clutch control apparatus

Details Torque converter lockup clutch control apparatus Torque converter lockup clutch control apparatus

1991-11-27

1993-07-13

Lorence, Richard M.

192 clutches and power-stop control

Vortex-flow drive and clutch

With brake

192 0075, 192 33, F16H 6114, F16H 4502, B60K 4102

Patent

active

052265137

ABSTRACT:
A torque converter lockup clutch control apparatus operates a lockup clutch to provide a controlled degree of slip between the converter cover and the turbine hub. Cylinder output sensors are provided for monitoring outputs produced in the respective cylinders of an internal combustion engine. The monitored cuylinder outputs are utilized to calculate the amplitude of fluctuation of the torque outputted from the engine. The degree of slip provided in the lockup clutch is changed when the calculated amplitude exceeds a predetermined value.

REFERENCES:
patent: Re33713 (1991-10-01), Watanabe et al.
patent: 4457411 (1984-07-01), Hiramatsu
patent: 4468988 (1984-09-01), Hiramatsu
patent: 4582185 (1986-04-01), Grimes et al.
patent: 4585101 (1986-04-01), Danno
patent: 4724939 (1988-02-01), Lockhart et al.
patent: 4957194 (1990-09-01), Sawa et al.

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