COMBUSTION CONTROL DEVICE AND COMBUSTION CONTROL METHOD FOR DIESEL ENGINE

PROBLEM TO BE SOLVED: To provide a combustion control device and a combustion control method for a diesel engine capable of increasing the operating efficiency of the diesel engine while suppressing the occurrence of noise and soot when the combustion mode is changed. SOLUTION: In this combustion co...

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Bibliographische Detailangaben
Hauptverfasser:	NAKAMOTO JINJU, SHIMO DAISUKE, KATAOKA ICHIJI, MAEKAWA KOTA, FUKUDA DAISUKE
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a combustion control device and a combustion control method for a diesel engine capable of increasing the operating efficiency of the diesel engine while suppressing the occurrence of noise and soot when the combustion mode is changed. SOLUTION: In this combustion control method, an ECU 47 reciprocates the combustion mode of a diesel engine 1 between the diffuse combustion mode and a premixed combustion mode according to engine load, and controls the fuel injection amount so that a pilot injection amount in the premixed combustion mode is larger than the pilot injection amount in the diffuse combustion mode. When the combustion mode is changed from the diffuse combustion mode to the premixed combustion mode, the ECU 47 reduces the fuel injection amount to the pilot injection amount in the premixed combustion mode after gradually increasing the fuel injection amount until the pilot injection amount is increased over the pilot injection amount in the premixed combustion mode. COPYRIGHT: (C)2011,JPO&INPIT