Vehicle lock-up clutch slip control apparatus wherein slip contr

Details Vehicle lock-up clutch slip control apparatus wherein slip contr Vehicle lock-up clutch slip control apparatus wherein slip contr

1996-08-08

1998-09-15

Ta, Khoi Q.

Interrelated power delivery controls, including engine control

Clutch control

Condition responsive control

477 62, 477169, B60K 4102, F16H 6114

Patent

active

058072098

ABSTRACT:
An apparatus for controlling of a lock-up clutch between a pump impeller and a turbine runner of a fluid-filled power transmitting device of a motor vehicle equipped with a fuel-cut control device for cutting a fuel supply to an engine when the engine speed is higher than a predetermined level, wherein a slip control device is provided to effect a deceleration slip control in which a pilot pressure for controlling the lock-up clutch is controlled during vehicle deceleration such that an actual slip amount of the clutch coincides with a target value, the apparatus including a monitoring device for determining whether the actual slip amount during the deceleration slip control by the slip control device is larger than a predetermined threshold, and a terminating device for terminating the deceleration slip control of the clutch by the slip control device, if the monitoring device determines that the actual slip amount is larger than the predetermined threshold.

REFERENCES:
patent: 5085301 (1992-02-01), Imamura et al.
patent: 5141089 (1992-08-01), Nobumoto et al.
patent: 5547438 (1996-08-01), Nozaki et al.
patent: 5562571 (1996-10-01), Maruyama et al.
patent: 5626535 (1997-05-01), Kono et al.
patent: 5626536 (1997-05-01), Kono et al.

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