Method of controlling a late fuel injection in an internal combustion engine

An embodiment of the invention provides a method of controlling a late fuel injection quantity in the exhaust system, 275, of an internal combustion engine, 110, for the regeneration of at least an aftertreatment device, 280, wherein the method performs the steps of determining an oxygen content in...

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Bibliographische Detailangaben
Hauptverfasser:	ANDREA DUTTO, ROBERTO ARGOLINI, MARKUS HEMM
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS
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Beschreibung
Zusammenfassung:	An embodiment of the invention provides a method of controlling a late fuel injection quantity in the exhaust system, 275, of an internal combustion engine, 110, for the regeneration of at least an aftertreatment device, 280, wherein the method performs the steps of determining an oxygen content in the exhaust system, determining a maximum quantity of the late fuel injection based on said oxygen content, an engine speed and an exhaust mass flow. The particular embodiment relate to regeneration of a Lean NOx Trap, Diesel Particulate Filter or Diesel Oxidation Catalyst.