US PATENT SUBCLASS 477 / 144
.~.~.~.~ Downshift

Current as of: June, 1999
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477 /   HD   INTERRELATED POWER DELIVERY CONTROLS, INCLUDING ENGINE CONTROL

34  DF  TRANSMISSION CONTROL {15}
115  DF  .~ Transmission controlled by engine {4}
121  DF  .~.~ By input manifold pressure or engine fuel control {6}
143  DF  .~.~.~ Servo motor timing {5}
144.~.~.~.~ Downshift {4}
145  DF  .~.~.~.~.~> With fluid accumulator {1}
147  DF  .~.~.~.~.~> Double acting servo
148  DF  .~.~.~.~.~> Speed responsive control
149  DF  .~.~.~.~.~> Electric valve control

DEFINITION

Classification: 477/144

Downshift:

(under subclass 143) Subject matter wherein significance is attributed to regulating pressure in the chamber on a shift from a high speed ratio* to a lower speed ratio*.