METHODS AND SYSTEM FOR CATALYST REACTIVATION

Embodiments for reactivating a catalyst are provided. In one example, a method for reactivating a catalyst coupled to an engine comprises when the engine is restarted following deactivation, adjusting a degree of fuel enrichment based on an engine off duration and an engine air amount during the res...

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Bibliographische Detailangaben
Hauptverfasser:	LEHMEN, ALLEN, UPHUES, MARC G, RANSPACH, PAUL MAHLON
Format:	Patent
Sprache:	eng ; spa
Schlagworte:	BLASTING CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	Embodiments for reactivating a catalyst are provided. In one example, a method for reactivating a catalyst coupled to an engine comprises when the engine is restarted following deactivation, adjusting a degree of fuel enrichment based on an engine off duration and an engine air amount during the restart. Se proporcionan realizaciones para reactivar un catalizador. En un ejemplo, un método para reactivar un catalizador acoplado a un motor comprende cuando el motor se reinicia después de la desactivación, lo cual ajusta el nivel de enriquecimiento del combustible sobre la base de una duración del apagado del motor y la cantidad de aire en el motor durante el reinicio.