发明名称 |
Algorithm to diagnose leaks or blockages downstream of the secondary air injection reaction (SAIR) pressure sensor |
摘要 |
A control module and method for an exhaust system of an engine can include a secondary air intake (SAI) pressure module that monitors SAI pressure. An accumulation module can accumulate an SAI string length based on the monitored SAI pressure. A calculation module can determine an average SAI string length based on the accumulated SAI string length. A determination module can determine an operating characteristic of the vehicle exhaust based on the average SAI string length. |
申请公布号 |
US8136347(B2) |
申请公布日期 |
2012.03.20 |
申请号 |
US20080205313 |
申请日期 |
2008.09.05 |
申请人 |
MAC EWEN IAN J.;HALL MARTIN L.;MURRAY LAWRENCE O;GROW JULIA C.;VAN CAMP RICHARD A.;PROUT DAVID EDWARD;ANILOVICH IGOR;GM GLOBAL TECHNOLOGY OPERATIONS LLC |
发明人 |
MAC EWEN IAN J.;HALL MARTIN L.;MURRAY LAWRENCE O;GROW JULIA C.;VAN CAMP RICHARD A.;PROUT DAVID EDWARD;ANILOVICH IGOR |
分类号 |
F01N3/00 |
主分类号 |
F01N3/00 |
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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