Hydraulic control system for automatic transmission of automotiv

Details Hydraulic control system for automatic transmission of automotiv Hydraulic control system for automatic transmission of automotiv

1996-05-01

1997-12-16

Ta, Khoi Q.

Interrelated power delivery controls, including engine control

Transmission control

Transmission controlled by engine

477131, 477116, 477143, 477144, F16H 6126

Patent

active

056978650

ABSTRACT:
A hydraulic control system for an automatic transmission includes a hydraulic pump, a pressure regulating valve, a solenoid supply valve, a manual valve, a torque control regulator valve, a control switching valve, a N-D control valve, a 1-2 shift valve, a 2-3 shift valve, a 3-4 shift valve, and a N-R control valve. Accumulators are disposed in conduits to first and seventh friction members for reducing shift shock caused by line pressure and drive pressure fed from fourth and second clutch valves.

REFERENCES:
patent: 4982622 (1991-01-01), Yamamoto et al.
patent: 5131298 (1992-07-01), Marusue
patent: 5558599 (1996-09-01), Tsukamoto et al.
patent: 5582559 (1996-12-01), Jang et al.

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