Control apparatus for hydraulically operated vehicular transmiss

Details Control apparatus for hydraulically operated vehicular transmiss Control apparatus for hydraulically operated vehicular transmiss

1999-07-16

2000-06-20

Wright, Dirk

Interrelated power delivery controls, including engine control

Transmission control

Transmission controlled by engine

477156, F16H 6116

Patent

active

060771925

ABSTRACT:
A control apparatus for a hydraulically operated vehicular transmission having a plurality of speed change steps includes a shift valve unit controlling the supplying of hydraulic oil to and discharging of hydraulic oil from hydraulic pressure coupling elements for the respective speed change steps, a throttle hydraulic pressure signal outputting device which outputs a throttle hydraulic pressure signal which is applied to switch the shift valve unit, according to a throttle opening degree of an engine and an accumulator connected to an input oil path through which the throttle hydraulic pressure signal is applied to the shift valve unit.

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