METHOD AND DEVICE FOR MONITORING A PARTICLE FILTER

A method for monitoring a particulate filter in the exhaust duct of an internal combustion engine operated with gasoline, as a device for implementing the method are described. A first exhaust-gas temperature is determined upstream of the particulate filter and a second exhaust-gas temperature is de...

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Bibliographische Detailangaben
Hauptverfasser: HANDLER, Torsten, BAARS, Enno, ZEIN, Thomas, WILLIMOWSKI, Markus, WINKLER, Klaus
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:A method for monitoring a particulate filter in the exhaust duct of an internal combustion engine operated with gasoline, as a device for implementing the method are described. A first exhaust-gas temperature is determined upstream of the particulate filter and a second exhaust-gas temperature is determined downstream from the particulate filter, and a presence and/or a correct functioning of the particulate filter is inferred from a difference between the first and the second exhaust-gas temperature or from a differing time characteristic curve of the first and the second exhaust-gas temperature.