Combustion control device and control method for internal combustion engine

In a control device 50A, an actual compression ratio calculation unit 502 calculates an actual compression ratio from an air supply pressure Ps, a cylinder pressure before ignition Pc and an air supply temperature Ts. A deposit deposition estimation unit 504 determines the deposit deposition state o...

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Bibliographische Detailangaben
1. Verfasser:	ANDOU JUNNOSUKE
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES 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 TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	In a control device 50A, an actual compression ratio calculation unit 502 calculates an actual compression ratio from an air supply pressure Ps, a cylinder pressure before ignition Pc and an air supply temperature Ts. A deposit deposition estimation unit 504 determines the deposit deposition state of a combustion chamber 18 from a deviation between the actual compression ratio and a design compression ratio ′. When the deviation exceeds a threshold value, ignition timing or air-fuel ratio being operation conditions of an internal combustion engine is corrected based on a correction map 508 so as to suppress deterioration of exhaust gas.