Valve control system

Details Valve control system Valve control system

2011-01-04

2011-01-04

Ho, Ha D. (Department: 3655)

Interrelated power delivery controls, including engine control

Transmission control

Control by sensed ambient condition, pattern indicia,...

C477S072000, C477S076000

Reexamination Certificate

active

07862471

ABSTRACT:
A solenoid control system for implementation with an electronic range selection (ETRS) system that shifts a transmission range between a park position and an out-of-park position. A first solenoid assembly is operable to control a fluid valve to supply pressurized fluid to urge a valve spool toward a first position. A second solenoid assembly is operable to control a fluid valve to supply pressurized fluid to urge said valve spool toward a second position. A control module selectively energizes one of the first and second solenoids based on a transmission fluid temperature.

REFERENCES:
patent: 5803863 (1998-09-01), Hayward et al.
patent: 6142282 (2000-11-01), Rudisil et al.
patent: 6983668 (2006-01-01), Powell et al.
patent: 7082851 (2006-08-01), Whitmarsh et al.
patent: 7490528 (2009-02-01), Koski et al.

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