发明申请
- 专利标题: Ammonia Slip Reduction
- 专利标题(中): 氨减滑
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申请号: US14070662申请日: 2013-11-04
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公开(公告)号: US20140127098A1公开(公告)日: 2014-05-08
- 发明人: Adam C. Lack , Navtej Singh , Paul Boon Charintranond , Michael James Miller
- 申请人: International Engine Intellectual Property Company, LLC
- 主分类号: F01N3/20
- IPC分类号: F01N3/20 ; B01D53/94
摘要:
A method for controlling injection of a reductant into an exhaust system of an internal combustion engine, which includes measuring temperature at a plurality of locations in the exhaust system relative to an SCR catalyst, determining an average temperature as a function of the measured temperatures, and controlling injecting of a reductant into the exhaust upstream of the catalyst as a function of the average temperature. The average temperature may be a weighted average where temperature measurements from at least some locations upstream of the SCR catalyst may be assigned greater weight than temperature measurements proximate the SCR catalyst.