US PATENT SUBCLASS 123 / 488
.~.~.~.~ Subcircuit operates on a parameter sensor output before input to main fuel control (e.g., function generator)

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

434  DF  CHARGE FORMING DEVICE (E.G., POLLUTION CONTROL) {29}
445  DF  .~ Fuel injection system {5}
472  DF  .~.~ Electrically actuated injector {5}
478  DF  .~.~.~ Actuator circuit (e.g., engine condition responsive electronic circuit actuates injector valve) {15}
488.~.~.~.~ Subcircuit operates on a parameter sensor output before input to main fuel control (e.g., function generator)

DEFINITION

Classification: 123/488

Subcircuit operates on a parameter sensor output before input to main fuel control (e.g., function generator):

(under subclass 478) Subject matter wherein the circuit employs a subcircuit, generally a type of function generator, between the engine parameter sensor and the input to the decision making or computing section of the circuit, so that for every input to the subcircuit there is a predetermined output to the injector fuel control valve.