发明名称 |
METHOD FOR DETECTING THE DEFECTIVE OPERATION OF A PARTICULATE FILTER OF A POLLUTION CONTROL SYSTEM |
摘要 |
The invention relates to a method for detecting the defective operation of a particulate filter of a pollution control system of a heat engine, said particulate filter being impregnated with a catalyst enabling the reduction of nitrogen oxides NOx and a NOx sensor located downstream of said particulate filter for the detection of NOx that have not been reduced by said catalyst, and/or ammonia. According to the invention, the data (52) supplied by the NOx sensor is used to diagnose a defective operation of the particulate filter. The data supplied by said sensor can be the variation (53) of the characteristics of conversion of NOx by said catalyst. |
申请公布号 |
WO2011107686(A1) |
申请公布日期 |
2011.09.09 |
申请号 |
WO2011FR50294 |
申请日期 |
2011.02.11 |
申请人 |
PEUGEOT CITROEN AUTOMOBILES SA;TRONEL, FREDERIC |
发明人 |
TRONEL, FREDERIC |
分类号 |
B01D53/94;F01N3/035;F01N11/00;F01N13/00 |
主分类号 |
B01D53/94 |
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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