发明名称 |
EXHAUST DIAGNOSTIC SYSTEMS AND METHODS WITH SCR CONVERSION EFFICIENCY MONITOR DISABLING |
摘要 |
A diagnostic control module includes a temperature gradient module. The temperature gradient module determines a temperature gradient across a selective catalytic reduction (SCR) catalyst of an exhaust system of an engine based on a plurality of temperature signals. A calibration module determines a weighted average based on the plurality of temperature signals. A SCR efficiency control module disables conversion efficiency monitoring based on the temperature gradient and the weighted average.
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申请公布号 |
US2012041596(A1) |
申请公布日期 |
2012.02.16 |
申请号 |
US20100855196 |
申请日期 |
2010.08.12 |
申请人 |
THOMPSON BRETT B.;LEVIJOKI STEPHEN PAUL;GM GLOBAL TECHNOLOGY OPERATIONS, INC. |
发明人 |
THOMPSON BRETT B.;LEVIJOKI STEPHEN PAUL |
分类号 |
G05B21/00 |
主分类号 |
G05B21/00 |
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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