Governor interlock valve

Details Governor interlock valve Governor interlock valve

1994-09-13

1996-04-23

Marmor, Charles A.

Interrelated power delivery controls, including engine control

Transmission control

Transmission controlled by engine

477150, 477906, 475119, F16H 6126

Patent

active

055098681

ABSTRACT:
A transmission control wherein modulating solenoid valves provide for continued governor and accumulator trim boost in the event of a malfunction in either the electrical or the hydraulic system. The transmission control provides redundancy to permit continued operation in the event one of the modulating solenoid valves fails. A single interlock valve is employed to prevent the two modulating solenoid valves from pressurizing the governor and the trim boost circuits when the transmission is operating in the reverse drive range.

REFERENCES:
patent: 4023447 (1977-05-01), Sakai et al.
patent: 4307631 (1981-12-01), Iwanaga et al.
patent: 4501174 (1985-02-01), Sugano
patent: 4995285 (1991-02-01), Hayakawa et al.
patent: 5136898 (1992-08-01), Hirose
patent: 5399130 (1995-03-01), Long

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