Transmission shift control

Details Transmission shift control Transmission shift control

1990-08-30

1991-09-03

Herrmann, Allan D.

Machine element or mechanism

Gearing

Interchangeably locked

192114T, B60K 2014

Patent

active

050442163

ABSTRACT:
An improved electrically controlled, fluid pressure actuated transmission control system (100) is provided. The improved control system includes an anti-default valve (102), preferably a normally closed solenoid controlled valve, fluidly interposed between the system source of pressurized fluid and the various pressurized and/or exhausted chambers of the system piston/cylinder actuator assembly (16).

REFERENCES:
patent: 3367462 (1968-02-01), Bibbens
patent: 4046032 (1977-09-01), Braun et al.
patent: 4290515 (1981-09-01), Bogema et al.
patent: 4445393 (1984-05-01), Braun
patent: 4748863 (1988-06-01), McNinch et al.
patent: 4873881 (1989-10-01), Edelen et al.
patent: 4928544 (1990-05-01), Markyvech et al.
patent: 4957016 (1990-09-01), Amedei et al.

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