Interrelated power delivery controls – including engine control – Clutch control – Condition responsive control
Patent
1997-07-10
1998-12-01
Ta, Khoi Q.
Interrelated power delivery controls, including engine control
Clutch control
Condition responsive control
477176, 477158, F16H 6100, F16H 6114
Patent
active
058429530
ABSTRACT:
Apparatus for controlling the amount of slip of a lock-up clutch of an automotive vehicle, which is provided in a fluid-operated power transmitting device such as a torque converter disposed between an engine and an automatic transmission, for direct connection of the engine and the automatic transmission, the apparatus including a pressure regulating valve for regulating a line pressure depending upon a load of the engine, a lock-up clutch slip control valve operable in a slip control mode for receiving the regulated line pressure and regulating a hydraulic pressure applied to the lock-up clutch to control the amount of slip of the lock-up clutch, a slip control mode detecting device for detecting an operation of the lock-up clutch slip control valve in the slip control mode, and a line pressure change restricting device for restricting an operation of the pressure regulating valve to restrict a change of the line pressure with a change in the engine during operation of the lock-up clutch slip control valve in the slip control mode.
REFERENCES:
patent: 5085301 (1992-02-01), Inamura et al.
patent: 5111718 (1992-05-01), Iizuka
patent: 5113719 (1992-05-01), Suzuki et al.
patent: 5588937 (1996-12-01), Kono et al.
patent: 5611752 (1997-03-01), Kamada et al.
Kimura Hiromichi
Yasue Hideki
Ta Khoi Q.
Toyota Jidosha & Kabushiki Kaisha
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