Misfire detection in internal combustion engines

Details Misfire detection in internal combustion engines Misfire detection in internal combustion engines

1993-02-22

1994-09-13

Raevis, Robert

Measuring and testing

Vehicle chassis

Steering

36443107, G01M 1500

Patent

active

053458176

ABSTRACT:
Engine combustion malfunctions are detected and the responsible cylinder identified by an approach appropriate to the engine operating point by monitoring change in engine speed in a manner insensitive to engine output shaft tooth-to-tooth spacing variations, substantially linear changes in engine speed, and driveline ringing, such as from rough roads or a previously detected misfire. Multiple misfires may be detected in a single engine cycle.

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Plapp et al., "Methods of On-Board Misfire Detection", Electronics Diesel Engine Controls, Feb. 1990.

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