Interrelated power delivery controls – including engine control – Transmission control – Transmission controlled by engine
Patent
1995-10-31
1997-08-19
Marmor, Charles A.
Interrelated power delivery controls, including engine control
Transmission control
Transmission controlled by engine
477130, 477158, F16H 6100
Patent
active
056582188
ABSTRACT:
Disclosed is a hydraulic control system of an automatic transmission used in a vehicle, which comprises a torque converter for transferring the engine power to the input shaft of the transmission, an oil pump for pumping an oil by means of the engine power, a pressure regulation means for regulating the line pressure produced by the oil pump according to the forward and reverse drive and the amount of a throttle opening, a damper clutch working control means for changing the direction of the pressure delivered to the torque converter in order to increase the power transfer rate of the torque converter, a shift pressure control means for delivering the pressure supplied from the pressure regulation means to the first, second, third, fourth, fifth, sixth and seventh solenoid valves controlled on/off by a transmission control unit to adjust the control pressure during shifting operation, and a pressure distribution means for selectively distributing the pressure supplied from the pressure control means during shifting among the friction elements according to the shifting stages.
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U.S. Patent Application Serial No. 08/347,312.
Jang Jaeduk
Lim Kibeen
Hyundai Motor Co.
Kwon Peter T.
Marmor Charles A.
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