公开(公告)号：US20150020507A1

公开(公告)日：2015-01-22

申请号：US13943142

申请日：2013-07-16

Applicant: GM Global Technology Operations LLC

Inventor： Min Sun, JR. ,  Michelangelo Ardanese ,  Vincent J. Tylutki ,  Igor Anilovich

IPC: F01N11/00 ,  G01M15/10 ,  G01N15/08 ,  F01N3/021

CPC classification number: F01N11/00 ,  F01N3/021 ,  F01N2560/05 ,  F01N2900/0416 ,  F01N2900/1606 ,  G01M15/102 ,  G01N15/08 ,  G01N15/082 ,  G01N2015/084 ,  Y02T10/47

Abstract: A method for particulate filter performance monitoring in an exhaust gas treatment system is provided. The method includes monitoring a current received from a soot sensor in the exhaust gas treatment system and comparing the current to a soot sensor current threshold. Based on determining that the current is greater than or equal to the soot sensor current threshold, an accumulated engine out soot value is compared to an accumulated engine out soot threshold. A particulate filter fault is set based on determining that the accumulated engine out soot value is less than the accumulated engine out soot threshold. A monitoring system and an exhaust gas treatment system of an engine are also provided.

Abstract translation: 提供了一种废气处理系统中的微粒过滤器性能监测方法。 该方法包括监测从废气处理系统中的烟灰传感器接收的电流，并将电流与烟尘传感器电流阈值进行比较。 基于确定电流大于或等于烟尘传感器电流阈值，将累积的发动机熄火烟炱值与积累的发动机熄火烟炱阈值进行比较。 基于确定积存的发动机熄火烟灰值小于累积发动机熄火烟灰阈值来设定微粒过滤器故障。 还提供了发动机的监测系统和废气处理系统。