Engine misfire detection using system identification technology

Details Engine misfire detection using system identification technology Engine misfire detection using system identification technology

2006-04-25

2006-04-25

McCall, Eric S. (Department: 2855)

Measuring and testing

Vehicle chassis

Steering

Reexamination Certificate

active

07032439

ABSTRACT:
A method of detecting misfire events in an engine uses system identification technology. A linear model is determined for estimating engine firing events based on engine speed fluctuations. The linear model is represented as a difference equation. A Kalman filter is applied to the difference equation to determine unknown parameters of the linear model. Misfire events in the engine are detected based on the linear model.

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