| 发明名称 |
FUEL CONTROL FOR SPARK IGNITED ENGINE HAVING A PARTICULATE FILTER SYSTEM |
| 摘要 |
A system for filtering and oxidizing particulate matter produced by a gasoline direct injection engine is disclosed. In one embodiment, engine cylinder air-fuel is adjusted to allow soot to oxidize at an upstream particulate filter while exhaust gases are efficiently processed in a downstream catalyst. |
| 申请公布号 |
US2015053190(A1) |
申请公布日期 |
2015.02.26 |
| 申请号 |
US201414532737 |
申请日期 |
2014.11.04 |
| 申请人 |
Ford Global Technologies, LLC |
发明人 |
Hubbard Carolyn Parks;McCabe Robert Walter;Thanasiu Eva;Hepburn Jeffrey Scott;Ruhland Helmut Hans;Springer Moritz Klaus;Lorenz Thomas;Louven Georg;Bidner David Karl |
| 分类号 |
F02D41/14;F02M25/07;F01N11/00 |
主分类号 |
F02D41/14 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method, comprising:
comparing an oxygen concentration of exhaust entering a particulate filter with an oxygen concentration of exhaust exiting the filter and entering a three-way catalyst downstream of the filter; operating a cylinder of a turbocharged spark-ignited engine lean for a length of time, the length of time based on a measured oxygen storage capacity of the three-way catalyst, to regenerate the filter while maintaining exhaust exiting the filter at stoichiometry. |
| 地址 |
Dearborn MI US |
