Method for testing the functionality of an exhaust gas recirculation valve of an internal combustion engine

The invention relates to a method for testing the functionality of an exhaust gas recirculation valve (13) of an internal combustion engine (1). The position of an actuator (13a) of the exhaust gas recirculation valve (13) is periodically changed, and a system variable (LM, LD) that is influenced by...

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Bibliographische Detailangaben
Hauptverfasser:	PAWLAK JENS, BREITBACH THOMAS
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a method for testing the functionality of an exhaust gas recirculation valve (13) of an internal combustion engine (1). The position of an actuator (13a) of the exhaust gas recirculation valve (13) is periodically changed, and a system variable (LM, LD) that is influenced by the movement of the actuator (13a) is measured. The measured signal is analyzed in order to test the functionality of the exhaust gas recirculation valve (13).