Interrelated power delivery controls – including engine control – Clutch control – Condition responsive control
Patent
1998-09-18
2000-03-21
Ta, Khoi Q.
Interrelated power delivery controls, including engine control
Clutch control
Condition responsive control
477169, 477175, F16H 6114
Patent
active
06039675&
ABSTRACT:
A slip control system for a torque converter with a lockup clutch comprises a controller from which a slip control signal is outputted to a slip control actuator of the torque converter. The controller is arranged to calculate a reference value of a lockup clutch engagement pressure on the basis of a characteristic of the torque converter, to calculate a difference canceling lockup clutch engagement pressure for adjusting an actual slip rotation speed to the target slip rotation speed, to obtain the sum of the lockup clutch engagement pressure reference value and the difference canceling lockup clutch engagement pressure as a lockup clutch engagement pressure command value, and to output the control signal indicative of the lockup clutch engagement pressure command value to the actuator.
REFERENCES:
patent: 5616099 (1997-04-01), Sakai
patent: 5626536 (1997-05-01), Lpmp et al.
patent: 5637052 (1997-06-01), Hirota et al.
patent: 5683329 (1997-11-01), Kono et al.
patent: 5697479 (1997-12-01), Kono et al.
patent: 5724866 (1998-03-01), Minowa et al.
patent: 5733223 (1998-03-01), Matsubara et al.
patent: 5803868 (1998-09-01), Kono et al.
K. Kono, et al., Scientific Lecture Meeting (Reprint No. 954), "Lock-up Clutch Slip Control System for Automatic Transmissions", pp. 81-84, Toyoto Motor Corporation, (Sep. 1995).
Adachi Kazutaka
Watanabe Akira
Nissan Motor Co,. Ltd.
Ta Khoi Q.
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