Lock-up slip control device for automatic transmission

Details Lock-up slip control device for automatic transmission Lock-up slip control device for automatic transmission

1998-04-20

2000-04-18

Marmor, Charles A.

Interrelated power delivery controls, including engine control

Clutch control

Condition responsive control

477 62, 477169, F16H 6114

Patent

active

060509198

ABSTRACT:
A control device for an automatic transmission having a hydraulic power transmission with a lock-up clutch includes a device for setting a predetermined pressure that is less than a pressure at which a target value convergence control is started. The predetermined pressure is set as the hydraulic pressure applied to the lock-up clutch by a predetermined pressure setting device for a predetermined time. The predetermined time is a time from a satisfaction of conditions for the slip control start until an input rotation speed is stabilized, as set by a time setting device.

REFERENCES:
patent: 4456107 (1984-06-01), Ito et al.
patent: 4582185 (1986-04-01), Grimes et al.
patent: 4940122 (1990-07-01), Fujieda
patent: 5562571 (1996-10-01), Maruyama et al.
patent: 5683329 (1997-11-01), Kono et al.

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