Misfire detection in engines for on-board-diagnostics

Details Misfire detection in engines for on-board-diagnostics Misfire detection in engines for on-board-diagnostics

2007-03-28

2009-08-11

McCall, Eric S (Department: 2855)

Measuring and testing

Internal combustion engine or related engine system or...

Irregular combustion

C073S114750

Reexamination Certificate

active

07571640

ABSTRACT:
Detection of cylinder misfires in engines. In one aspect of the invention, a method for detecting a cylinder misfire in an engine includes monitoring a temperature in the exhaust of the engine. Vibration of the engine is analyzed to identify a misfiring cylinder in the engine if the monitored temperature indicates a misfire may have occurred.

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