Detection method, device and equipment for exhaust gas recirculation system and storage medium

The invention discloses a detection method, device and equipment for an exhaust gas recirculation system and a storage medium. The method comprises the steps that when a plug-in hybrid electric vehicle is in an idling pure charging working condition, an exhaust gas recirculation valve of the exhaust...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LIU QIN, TIAN LIANGYUN, SHEN FUSONG
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 discloses a detection method, device and equipment for an exhaust gas recirculation system and a storage medium. The method comprises the steps that when a plug-in hybrid electric vehicle is in an idling pure charging working condition, an exhaust gas recirculation valve of the exhaust gas recirculation system is opened; a first pressure value is obtained, the first pressure value is used for representing the pressure value of gas in the exhaust gas recirculation system at the first moment, and the first moment is the moment when the exhaust gas recirculation valve is opened; a second pressure value is obtained, the second pressure value is used for representing the pressure value of gas in the exhaust gas recirculation system at the second moment, and the second moment is the moment of a first preset time period after the first moment; and fault diagnosis is conducted on the exhaust gas recirculation system according to the difference value between the first pressure value and the second pressu