发明名称 |
Exhaust system monitoring methods and systems |
摘要 |
A diagnostic system for an exhaust system including a catalyst and a post-catalyst oxygen sensor is provided. The system generally includes a fuel control module that commands fuel to transition from a rich condition to a lean condition and that commands fuel to transition from the lean condition to the rich condition. A first diagnostic module monitors the post-catalyst oxygen sensor during the transition from the rich condition to the lean condition. A second diagnostic module monitors the catalyst during the transition from the lean condition to the rich condition.
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申请公布号 |
US2008302087(A1) |
申请公布日期 |
2008.12.11 |
申请号 |
US20070811451 |
申请日期 |
2007.06.08 |
申请人 |
GENSLAK ROBERT J;ANILOVICH IGOR;ADAMS JUSTIN F;HELMICK JEFFRY A;STUTEVILLE EDWARD;WALD WESLEY W;SRINIVASAN VIDYAPRIYA |
发明人 |
GENSLAK ROBERT J.;ANILOVICH IGOR;ADAMS JUSTIN F.;HELMICK JEFFRY A.;STUTEVILLE EDWARD;WALD WESLEY W.;SRINIVASAN VIDYAPRIYA |
分类号 |
F01N7/00 |
主分类号 |
F01N7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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