US PATENT SUBCLASS 123 / 688
.~.~.~ Inoperative sensor responsive

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

434  DF  CHARGE FORMING DEVICE (E.G., POLLUTION CONTROL) {29}
672  DF  .~ Including exhaust gas condition responsive means {11}
679  DF  .~.~ Combined with engine condition responsive means {6}
688.~.~.~ Inoperative sensor responsive

DEFINITION

Classification: 123/688

Inoperative sensor responsive:

(under subclass 679) Subject matter wherein malfunction of the control means is prevented by the detecting of an abnormality of operational readiness in the functioning of a constituent transducer in the outflow of the products of combustion.