Interrelated power delivery controls – including engine control – Transmission control – Transmission controlled by engine
Patent
1997-08-26
1999-08-31
Ta, Khoi Q.
Interrelated power delivery controls, including engine control
Transmission control
Transmission controlled by engine
477 90, 477156, F16H 5700
Patent
active
059446323
ABSTRACT:
A vehicular power transmission includes an oil pump that produces an oil pressure for a line pressure to control the applications of frictional engagement elements and for a lubrication pressure to lubricate individual mechanical portions of the transmission. A motor is provided for driving the oil pump. A control unit controls the motor. An electric oil pump control system includes an accelerator sensor for inputting acceleration data according to the operation of the accelerator pedal of a vehicle to the control unit. The control unit controls the revolutions per minute of the motor such that the amount of oil discharged by the oil pump is sufficient for outputting the line pressure matching the acceleration data and the lubrication pressure.
REFERENCES:
patent: 5168975 (1992-12-01), Bernhardt et al.
patent: 5372213 (1994-12-01), Hasebe et al.
patent: 5681238 (1997-10-01), Minowa et al.
Hara Takeshi
Kurita Kiyoshi
Aisin Aw Co. Ltd.
Ta Khoi Q.
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