US PATENT SUBCLASS 477 / 155
.~.~.~.~ Electric valve control

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}
155.~.~.~.~ Electric valve control

DEFINITION

Classification: 477/155

Electric valve control:

(under subclass 143) Subject matter wherein control of fluid pressure to or from the chamber is by means of an electrically operated valve.

SEE OR SEARCH CLASS

701, Data Processing: Vehicles, Navigation, and Relative Location,

51+, for vehicle transmission control including significant calculations but absent specific transmission structure.