Method and a device for operating a internal combustion engine

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

2011-08-16

2011-08-16

Kwon, John T (Department: 3747)

Internal-combustion engines

Charge forming device

Including exhaust gas condition responsive means

C123S690000

Reexamination Certificate

active

07997257

ABSTRACT:
For operating a internal combustion engine a first characteristic value is determined depending on a distance integral of at least a portion of a control signal of an oxygen sensor control based on control reference signal characteristics across a given time period. Depending on the first characteristic value (KW—1) a quality value (GW—1) is determined. Depending on the quality value (GW1) either the existence or the non existence of an error of the exhaust sensor is detected.

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Basshuysen, et al., “Handbuch Verbrennungsmotor”, Auflage, Vieweg & Sohn Verlagsgesellschaft, mbH, p. 559-561, Jun. 2002.

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