CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE SYSTEM

PROBLEM TO BE SOLVED: To suppress occurrence of knocking.SOLUTION: An ECM 20 of an internal combustion engine system 1 includes a reforming catalyst 17 that generates reformed gas in an EGR gas passage 16 branched from a portion on the front side of an exhaust purification catalyst 15. When an engin...

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Bibliographische Detailangaben
1. Verfasser:	SHINJO TAKASHI
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 IGNITION, OTHER THAN COMPRESSION IGNITION, FORINTERNAL-COMBUSTION ENGINES LIGHTING MECHANICAL ENGINEERING SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To suppress occurrence of knocking.SOLUTION: An ECM 20 of an internal combustion engine system 1 includes a reforming catalyst 17 that generates reformed gas in an EGR gas passage 16 branched from a portion on the front side of an exhaust purification catalyst 15. When an engine operation point is within an EGR region, the ECM 20 determines whether or not a reforming control execution condition is achieved. The ECM 20 sets an injection amount required for generation of reformed gas when the reforming control execution condition is achieved, and sets an injection amount that is smaller than the injection amount required for generation of reformed gas and that can reduce nitrogen oxide included in EGR gas when the reforming control execution condition is not achieved. Then, the ECM 20 injects the set injection amount from a reforming injection valve 18.