Diesel particulate filter (DPF) active regeneration efficiency detecting system and method

The invention provides a diesel particulate filter (DPF) active regeneration efficiency detecting system and method. According to the system, based on a diesel engine after-treatment system, a DPF upstream carbon dioxide sensor used for detecting the concentration of carbon dioxide is additionally a...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	FU GUANGLONG, LI YANHONG, GAO FATING, HUANG SHAOWEN, WANG QIUHUA, LIU HAO
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 diesel particulate filter (DPF) active regeneration efficiency detecting system and method. According to the system, based on a diesel engine after-treatment system, a DPF upstream carbon dioxide sensor used for detecting the concentration of carbon dioxide is additionally arranged on a DPF upstream exhaust pipe, and a DPF downstream carbon dioxide sensor used for detecting the concentration of carbon dioxide is additionally arranged on a DPF downstream exhaust pipe. An after-treatment control electric control unit add control unit (ACU) is used for calculating the soot combustion consumption efficiency in a DPF during active regeneration by means of detecting results of the DPF upstream carbon dioxide sensor and the DPF downstream carbon dioxide sensor. The detecting system is simple in structure, the soot combustion efficiency in the DPF during active generation can be accurately and fast calculated, accordingly, DPF active regeneration efficiency irrationality faults are fast detec