Method and device for detecting a combustion misfire
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United States of America Patent
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Jun 24, 2008
Grant Date -
Apr 5, 2007
app pub date -
Sep 29, 2006
filing date -
Sep 30, 2005
priority date (Note) -
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Abstract
An internal combustion engine has a plurality of cylinders that have been allocated in at least two groups to one exhaust gas tract each. In each exhaust gas tract, an exhaust gas catalytic converter and an exhaust gas probe are fitted upstream of the exhaust gas catalytic converter. In order to detect combustion misfires in a combustion chamber of one of the cylinders, the following steps are carried out in each case. A combustion misfire is detected in one of the cylinders and allocated to one of the groups of the cylinders depending on at least one operating variable of the internal combustion engine.
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