发明名称 |
Lean kick catalyst monitoring system |
摘要 |
A method and system for monitoring a three-way catalyst cooled by a coolant and treating internal combustion engine exhaust by oxidizing HC and CO and reducing NOx is provided to prevent false-fail monitoring. An initial lean kick excursion of fuel-air ratio Phi is provided prior to the first reducing step or interval of the first cycle. |
申请公布号 |
US8661787(B1) |
申请公布日期 |
2014.03.04 |
申请号 |
US20100688156 |
申请日期 |
2010.01.15 |
申请人 |
PRZYBYL ANDREW J.;ROBERTSON WILLIAM R.;FRANK MARK A.;JAFFRI KASSER A.;HALL RONALD L.;BRUNSWICK CORPORATION |
发明人 |
PRZYBYL ANDREW J.;ROBERTSON WILLIAM R.;FRANK MARK A.;JAFFRI KASSER A.;HALL RONALD L. |
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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