US PATENT SUBCLASS 477 / 128
.~.~.~.~ Hysteresis

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}
127  DF  .~.~.~ Shift valve control {5}
128.~.~.~.~ Hysteresis {1}
129  DF  .~.~.~.~.~> Electric control

DEFINITION

Classification: 477/128

Hysteresis:

(under subclass 127) Subject matter wherein the regulation of the valve is such that should a given signal level be necessary to move the valve in one direction, movement in a second direction must overcome a greater signal level.

(1) Note. This prevents "hunting" by the valve.