公开(公告)号：US09599006B2

公开(公告)日：2017-03-21

申请号：US13221135

申请日：2011-08-30

申请人： Robert J. Genslak ,  Robert E. Heger ,  Edward Stuteville ,  Jerry J. Sheahan ,  Thomas J. Large

发明人： Robert J. Genslak ,  Robert E. Heger ,  Edward Stuteville ,  Jerry J. Sheahan ,  Thomas J. Large

IPC分类号： F01N11/00 ,  F01N3/10 ,  F02D41/02 ,  F02D41/14 ,  F02D41/22

CPC分类号： F01N11/007 ,  F01N3/101 ,  F01N2550/02 ,  F02D41/0295 ,  F02D41/1441 ,  F02D41/1456 ,  F02D41/22 ,  F02D2200/0816 ,  Y02A50/2324 ,  Y02T10/22 ,  Y02T10/47

摘要： A system for a vehicle includes an oxygen storage capacity (OSC) determination module, a delay determination module, a correction module, and a fault detection module. The OSC determination module determines an OSC period of a catalyst of an exhaust system based on first and second amounts of oxygen measured using first and second oxygen sensors located upstream and downstream of the catalyst, respectively. The delay determination module determines a delay period of the second oxygen sensor. The correction module sets a corrected OSC period for the catalyst based on a difference between the OSC period and the delay period. The fault detection module selectively indicates that a fault is present in the catalyst based on the corrected OSC period.

公开(公告)号：US20130054083A1

公开(公告)日：2013-02-28

申请号：US13221135

申请日：2011-08-30

申请人： Robert J. Genslak ,  Robert E. Heger ,  Edward Stuteville ,  Jerry J. Sheahan ,  Thomas J. Large

发明人： Robert J. Genslak ,  Robert E. Heger ,  Edward Stuteville ,  Jerry J. Sheahan ,  Thomas J. Large

IPC分类号： G01M15/04

CPC分类号： F01N11/007 ,  F01N3/101 ,  F01N2550/02 ,  F02D41/0295 ,  F02D41/1441 ,  F02D41/1456 ,  F02D41/22 ,  F02D2200/0816 ,  Y02A50/2324 ,  Y02T10/22 ,  Y02T10/47

摘要： A system for a vehicle includes an oxygen storage capacity (OSC) determination module, a delay determination module, a correction module, and a fault detection module. The OSC determination module determines an OSC period of a catalyst of an exhaust system based on first and second amounts of oxygen measured using first and second oxygen sensors located upstream and downstream of the catalyst, respectively. The delay determination module determines a delay period of the second oxygen sensor. The correction module sets a corrected OSC period for the catalyst based on a difference between the OSC period and the delay period. The fault detection module selectively indicates that a fault is present in the catalyst based on the corrected OSC period.

摘要翻译： 一种用于车辆的系统包括储氧容量（OSC）确定模块，延迟确定模块，校正模块和故障检测模块。 OSC确定模块基于分别位于催化剂上游和下游的第一和第二氧传感器测量的第一和第二氧气量来确定排气系统的催化剂的OSC周期。 延迟确定模块确定第二氧传感器的延迟周期。 校正模块基于OSC周期和延迟周期之间的差异来设定催化剂的校正OSC周期。 故障检测模块基于校正的OSC周期选择性地指示催化剂中存在故障。