Fly-by-wire limp home and multi-plex system

Details Fly-by-wire limp home and multi-plex system Fly-by-wire limp home and multi-plex system

2011-02-08

2011-02-08

Ho, Ha D. (Department: 3655)

Planetary gear transmission systems or components

Fluid drive or control of planetary gearing

Fluid controlled mechanical clutch or brake

C475S128000

Reissue Patent

active

RE042131

ABSTRACT:
An electro-hydraulic control mechanism for use with a multi-speed transmission includes a pair of logic valves, which are manipulated during the ratio interchanges and the ratio establishment by aiding in the distribution of fluid pressure from a plurality of trim valves. The logic valves are retained in specific drive ranges in the event of electrical discontinuance.

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