ENGINE CONTROL DEVICE

An engine control device is configured to perform an air-fuel ratio main feedback process based on an output of a front air-fuel ratio sensor, an air-fuel ratio sub feedback process of alternately switching a target air-fuel ratio between a rich side target air-fuel ratio and a lean side target air-...

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Bibliographische Detailangaben
Hauptverfasser:	NAKAGOSHI, Shinichi, YOSHIOKA, Shinji
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL CONTROLLING COMBUSTION ENGINES 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 HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	An engine control device is configured to perform an air-fuel ratio main feedback process based on an output of a front air-fuel ratio sensor, an air-fuel ratio sub feedback process of alternately switching a target air-fuel ratio between a rich side target air-fuel ratio and a lean side target air-fuel ratio based on an output of a rear air-fuel ratio sensor, and a catalyst air-fuel ratio correction process of, when an opening degree of a wastegate valve is large, correcting the target air-fuel ratio to be the air-fuel ratio on the rich side with respect to the air-fuel ratio when the opening degree is small.