发明名称 |
Lean engine control with multiple catalysts |
摘要 |
A method for controlling an engine having multiple banks with separate catalysts is described. In particular, coordinate lean and rich operation between the banks is utilized. However, termination of rich operation may be different between the banks to prevent breakthrough of rich exhaust gasses due to lack of stored oxidants. In this situation, the bank that terminated rich operation is operated near stoichiometric. This minimizes breakthrough of emissions, while at the same time minimizing a torque imbalance between the cylinder banks. In particular, the torque imbalance can be further minimized by retarding ignition timing on the rich bank while the other operates near stoichiometry. |
申请公布号 |
US6550240(B2) |
申请公布日期 |
2003.04.22 |
申请号 |
US20010682523 |
申请日期 |
2001.09.14 |
申请人 |
FORD GLOBAL TECHNOLOGIES, INC. |
发明人 |
KOLMANOVSKY ILYA V;SUN JING |
分类号 |
F02D45/00;F01N3/08;F01N3/24;F01N13/02;F01N13/04;F01N13/10;F02D41/00;F02D41/02;F02D41/04;F02D41/14;F02D41/34;F02P7/07;(IPC1-7):F01N3/00 |
主分类号 |
F02D45/00 |
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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