Control device for internal combustion engine

The invention provides a control device for an internal combustion engine. The control device detects that an exhaust after-treatment device is detached from an exhaust pipe. A control device (200) ofthe internal combustion engine (100) comprises a first exhaust temperature calculation part calculat...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	MINEO KENTARO, FUJIWARA TAKAHIKO, KATO KAZUMASA, IGAWA KENJI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING 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 LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	The invention provides a control device for an internal combustion engine. The control device detects that an exhaust after-treatment device is detached from an exhaust pipe. A control device (200) ofthe internal combustion engine (100) comprises a first exhaust temperature calculation part calculating a temperature of exhaust flowing into a PM trapping device (50) as a first exhaust temperature,a second exhaust temperature calculation part calculating a temperature of exhaust flowing out from the PM trapping device (50) as a second exhaust temperature, a rate of change over time calculationpart calculating a rate of change over time of the first exhaust temperature and a rate of change over time of the second exhaust temperature, and a judgment part judging if the PM trapping device (50) is in a removed state removed from the exhaust passage (22) based on a difference between the rate of change over time of the first exhaust temperature and the rate of change over time of the second exhaust temperature. 本发明提