SYSTEMS AND METHODS FOR STOPPING AND STARTING AN ENGINE WITH DEDICATED EGR

Methods and systems are provided for operating an engine including a DEGR system during start-stop and DFSO conditions. In one example, the DEGR cylinder may be deactivated prior to deactivating the non-DEGR cylinder group and stopping the engine, to purge EGR from the intake system.

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Bibliographische Detailangaben
Hauptverfasser:	LEONE THOMAS G, HILDITCH JAMES ALFRED, STYLES DANIEL JOSEPH, GLUGLA CHRIS PAUL, CZEKALA MICHAEL DAMIAN
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDEDFOR STARTING OF COMBUSTION ENGINES SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF WEAPONS
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Beschreibung
Zusammenfassung:	Methods and systems are provided for operating an engine including a DEGR system during start-stop and DFSO conditions. In one example, the DEGR cylinder may be deactivated prior to deactivating the non-DEGR cylinder group and stopping the engine, to purge EGR from the intake system.