Method and device for operating an internal combustion engine

Details Method and device for operating an internal combustion engine Method and device for operating an internal combustion engine

2006-03-02

2008-12-02

Cronin, Stephen K (Department: 3747)

Measuring and testing

Engine detonation

Combustion signal compared to a fixed reference signal or...

C073S114020, C060S602000, C060S324000, C701S102000

Reexamination Certificate

active

07458249

ABSTRACT:
A method and a device for operating an internal combustion engine which allow monitoring of errors during combustion without using a pressure sensor are provided. The internal combustion engine includes a final controlling element in an exhaust system of the internal combustion engine and a signal production unit for producing a signal as a function of a setting of the final controlling element. The signal is analyzed for a characteristic property of the signal. A value for the characteristic property of the signal is compared to a predefined value. An error is recognized as a function of a deviation of the value for the characteristic property of the signal from the predefined value during a fired operation of the internal combustion engine.

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