Electro-hydraulic control system with multiplexed solenoid...

Details Electro-hydraulic control system with multiplexed solenoid... Electro-hydraulic control system with multiplexed solenoid...

2011-07-19

2011-07-19

Pang, Roger L (Department: 3655)

Interrelated power delivery controls, including engine control

Transmission control

Transmission controlled by engine

C475S116000

Reexamination Certificate

active

07980995

ABSTRACT:
An electro-hydraulic control system is provided that utilizes a shift solenoid and shift valve to multiplex a single pressure control solenoid to control both modulation of a main pressure regulator valve and retarder operation (fill and pressure).

REFERENCES:
patent: 3863739 (1975-02-01), Schaefer et al.
patent: 4881625 (1989-11-01), Redelman
patent: 7527338 (2009-05-01), Long et al.
patent: 2007/0052288 (2007-03-01), Long et al.

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