Engaging force control system of a fluid coupling

Details Engaging force control system of a fluid coupling Engaging force control system of a fluid coupling

1998-12-10

2000-05-02

Ta, Khoi Q.

Interrelated power delivery controls, including engine control

Clutch control

Condition responsive control

477175, 477176, 477901, F16H 6114

Patent

active

060566671

ABSTRACT:
An engaging force control system of a fluid coupling is provided with a fluid coupling disposed between an input element connected with an engine and an output member connected with a drive wheel side member and including a lock-up clutch which is selectively engaged with and disengaged from the input and output elements, an engaging force adjusting device for adjusting the engaging force of the lock-up clutch, a throttle opening sensor for sensing a value related to a throttle opening of the engine, a vehicle speed sensor for sensing a value related to a vehicle speed of a vehicle, an engaging force control device for controlling the engaging force adjusting device based on an engaging property which is predetermined based on the values related to the throttle opening and vehicle speed as parameters and the values sensed and, an uphill detecting device for detecting an uphill running condition of the vehicle. When an throttle opening increment amount after the detection of an uphill road exceeds a determination reference value in the case where an uphill road running condition is detected during an engagement of the lock-up clutch, the engaging force adjusting device being controlled to release the lock-up clutch. The responsiveness in the acceleration action can be improved.

REFERENCES:
patent: 4393467 (1983-07-01), Miki et al.
patent: 5143191 (1992-09-01), Nobumoto et al.
patent: 5807204 (1998-09-01), Shiiba et al.

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