发明名称 |
DIAGNOSTIC METHOD FOR A PARTICULATE FILTER |
摘要 |
A diagnostic method is provided for a particle filter arranged in exhaust-gas flow of an internal combustion engine. A particle concentration is detected by a particle sensor positioned downstream of the particle filter. The combustion-relevant engine parameters are briefly changed by an engine controller in such a way that an untreated emissions concentration from the engine is significantly increased. A filter fault message is output if the detected associated measurement values of the particle concentration exceed a detection threshold value of the particle sensor, which is in particular considerably greater than a predefined, preferably volume-related particle limit value. |
申请公布号 |
EP2268903(A1) |
申请公布日期 |
2011.01.05 |
申请号 |
EP20090721277 |
申请日期 |
2009.03.18 |
申请人 |
CONTINENTAL AUTOMOTIVE GMBH |
发明人 |
ANTE, JOHANNES;WEIGL, MANFRED |
分类号 |
F01N3/021;F01N11/00 |
主分类号 |
F01N3/021 |
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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