Methods and systems for an aftertreatment system

Methods and systems are provided for an aftertreatment system. In one example, a method comprises regenerating a NOx trap during an engine shut-down event. The method further comprises reversing a direction of flow of a gas through a HP-EGR passage during the regenerating.

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Bibliographische Detailangaben
Hauptverfasser:	Kindl, Helmut Matthias, Kemmerling, Joerg, Kuske, Andreas, Smiljanovski, Vanco, Sommerhoff, Franz Arnd, Friederichs, Hanno, Boerensen, Christoph, Wunderlich, Frank, Forsting, Michael
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	Methods and systems are provided for an aftertreatment system. In one example, a method comprises regenerating a NOx trap during an engine shut-down event. The method further comprises reversing a direction of flow of a gas through a HP-EGR passage during the regenerating.