Internal combustion engine and method for controlling internal combustion engine

A deposit amount calculation unit calculates an accumulation amount ΣDp of deposit by using an amount of fuel injection fq and a rotation speed NE as parameters, and when the accumulation amount ΣDp exceeds a first threshold value, then an inlet and an outlet of an EGR cooler are switched. A condens...

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Bibliographische Detailangaben
Hauptverfasser:	Yajima, Shoji, Ijuin, Takashi
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF WEAPONS
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Beschreibung
Zusammenfassung:	A deposit amount calculation unit calculates an accumulation amount ΣDp of deposit by using an amount of fuel injection fq and a rotation speed NE as parameters, and when the accumulation amount ΣDp exceeds a first threshold value, then an inlet and an outlet of an EGR cooler are switched. A condensed water calculation unit calculates a retention amount ΣCw of condensed water by using the amount of fuel injection fq and the rotation speed NE as parameters, and when the retention amount ΣCw exceeds a second threshold value, then the inlet and the outlet of the EGR cooler are switched.