US PATENT SUBCLASS 123 / 406.35
.~.~.~.~.~.~ Engine operating condition is load or speed

Current as of: June, 1999
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123 /   HD   INTERNAL-COMBUSTION ENGINES

406.11  DF  SPARK IGNITION TIMING CONTROL {5}
406.12  DF  .~ Electronic control {10}
406.19  DF  .~.~ Closed loop feedback control of spark timing {5}
406.26  DF  .~.~.~ Combustion condition responsive {4}
406.29  DF  .~.~.~.~ Engine knock responsive {4}
406.34  DF  .~.~.~.~.~ Modification of knock signal by engine operating condition signal {1}
406.35.~.~.~.~.~.~ Engine operating condition is load or speed {1}
406.36  DF  .~.~.~.~.~.~.~> Acceleration or deceleration responsive

DEFINITION

Classification: 123/406.35

Engine operating condition is load or speed:

(under subclass 406.34) Subject matter wherein the operational parameter is indicative of either (a) a resistance to rotation of an engine output shaft, or (b) the rate of rotation of (1) the engine output shaft, or (2) of a component driven by the engine output shaft.

(1) Note. The engine load may be indicated by an intake manifold pressure, throttle position, or intake airflow quantity signal.

SEE OR SEARCH CLASS

701, Data Processing: Vehicles, Navigation, and Relative Location, subclass 110 for a digital or programmed data processing system associated with an internal combustion engine, designed to include the regulation of the vehicle speed, acceleration, or deceleration, where significant

details of the mechanical construction of the component or subsystem within a vehicle are not claimed.