Misfire detecting apparatus for internal combustion engine...

Details Misfire detecting apparatus for internal combustion engine... Misfire detecting apparatus for internal combustion engine...

2006-10-10

2006-10-10

Lefkowitz, Edward (Department: 2855)

Measuring and testing

Vehicle chassis

Steering

C073S116070, C073S117020, C073S118040

Reexamination Certificate

active

07117727

ABSTRACT:
Whether a misfire occurred is judged based on a comparison between diagnosis data that indicates a variation of an engine rotation speed and a threshold based on engine operating conditions. The misfire judgment is canceled based on a result of a comparison between data indicating an average correlation between the diagnosis data and the threshold, and a threshold for cancellation judgment.

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U.S. Appl. No. 10/830,065, Kiyomura et al., filed Apr. 23, 2004.

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