Misfire-detecting system for internal combustion engines

Details Misfire-detecting system for internal combustion engines Misfire-detecting system for internal combustion engines

1993-04-26

1995-02-14

Nelli, Raymond A.

Internal-combustion engines

High tension ignition system

Safety device

123425, F02P 1100

Patent

active

053885600

ABSTRACT:
A misfire-detecting system for an internal combustion engine compares detected sparking voltage with a first predetermined comparative level and a second predetermined comparative level lower than the first predetermined comparative level. Whether a misfire has occurred in the engine is determined based upon a logical relationship between results of the comparisons. As a result, a misfire can be detected accurately even when dielectric breakdown of the mixture occurs while a misfire has occurred.

REFERENCES:
patent: 5215067 (1993-06-01), Shimasaki et al.
patent: 5226394 (1993-07-01), Shimasaki et al.
patent: 5241937 (1993-09-01), Kanehiro et al.

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