ABNORMALITY DETERMINATION DEVICE OF TURBOCHARGER

PROBLEM TO BE SOLVED: To provide an abnormality determination device of a turbocharger capable of accurately determining the abnormality of a supercharging pressure changing mechanism. SOLUTION: This abnormality determination device determines based on the degree of the separation of a target superc...

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Bibliographische Detailangaben
Hauptverfasser:	TANIZAWA SEIGAKU, KISHIMOTO TAKESHI, TOYOSHIMA MINORU
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL CONTROLLING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MECHANICAL ENGINEERING WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an abnormality determination device of a turbocharger capable of accurately determining the abnormality of a supercharging pressure changing mechanism. SOLUTION: This abnormality determination device determines based on the degree of the separation of a target supercharging pressure set according to the operating state of an engine from an actual supercharging pressure that the turbocharger 20 having the supercharging pressure changing mechanism 22 is defective. The abnormality determination device changes the embodiment of the determination so that the turbocharger is hard to be determined to be defective on the assumption that at least one of such requirements that the changing speed of the target supercharging pressure is more than a predetermined determination value and the changing speed of the actual supercharging pressure to the target supercharging pressure side is more than a predetermined determination value is fulfilled. COPYRIGHT: (C)2007,JPO&INPIT