Control device and control method using torque feedback of a loc

Details Control device and control method using torque feedback of a loc Control device and control method using torque feedback of a loc

1992-11-12

1994-06-07

Braun, Leslie A.

Interrelated power delivery controls, including engine control

Clutch control

With fluid drive

192 331, F16H 6114

Patent

active

053181590

ABSTRACT:
In an automatic transmission provided with a hydraulic lockup clutch which can directly and mechanically engage an input shaft with an output shaft of a torque converter, input torque of the above torque converter is detected and an working oil pressure supplied to said lockup clutch is detected. And a target oil pressure for said lockup clutch is set based on said input torque, supply of the oil pressure is feedback controlled so that an actual working oil pressure gets close to said target oil pressure, and said lockup clutch is controlled to the semi-clutch state.

REFERENCES:
patent: 4577737 (1986-03-01), Niikura et al.
patent: 4724939 (1988-02-01), Lockhart et al.
patent: 5029087 (1991-07-01), Cowan et al.
patent: 5105926 (1992-04-01), Yoshimura et al.
patent: 5226513 (1993-07-01), Shibayawa

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