Ignition and fuel system misfire-detecting system for internal c

Details Ignition and fuel system misfire-detecting system for internal c Ignition and fuel system misfire-detecting system for internal c

1992-03-05

1993-08-17

Snow, Walter E.

Electricity: measuring and testing

Internal-combustion engine ignition system or device

Ignition timing

324399, 123479, F02P 1700, F02P 1106

Patent

active

052372790

ABSTRACT:
A misfire-detecting system for an internal combustion engine detects a value of sparking voltage generated by the igniting device of the engine after generation of an ignition command signal, compares the value of the detected sparking voltage with a predetermined value, and determines whether or not a misfire has occurred in the engine, based upon the result of the comparison. The misfire-detecting system can discriminate between a misfire attributable to the fuel supply system of the engine and one attributable to the ignition system of the engine, from a detected peak value of the sparking voltage.

REFERENCES:
patent: 3942102 (1976-03-01), Kuhn et al.
patent: 5017874 (1991-05-01), DiNunzio et al.

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