Control method and device of DPF (diesel particulate filter) and ECU (electronic control unit)

The invention provides a DPF (diesel particulate filter) control method and device and an ECU (electronic control unit), and the method comprises the following steps: when the ECU determines that the carbon load in waste gas discharged by an engine exceeds a first threshold value and does not exceed...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	CHU GUOLIANG, DU HUIJUAN, WANG GUODONG, FENG HAIHAO, QIN HAIYU, LIU YANG
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
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The invention provides a DPF (diesel particulate filter) control method and device and an ECU (electronic control unit), and the method comprises the following steps: when the ECU determines that the carbon load in waste gas discharged by an engine exceeds a first threshold value and does not exceed a second threshold value, acquiring a CCDOC upstream temperature measurement value; when it is determined that the CCDOC upstream temperature measurement value and the waste gas mass flow meet the first condition, a CCDOC downstream temperature measurement value is obtained; processing based on the waste gas mass flow rate of the waste gas, the CCDOC upstream temperature measurement value, the CCDOC downstream temperature measurement value and the feed-forward oil quantity to obtain a first HC injection quantity; and outputting the first HC injection amount through the first injection port to perform DPF regeneration. The passive regeneration reaction rate is increased through the oil with the first HC injection a