发明授权
US09255510B2 Ammonia (NH3) storage control system and method based on a nitrogen oxide(NOx) sensor
有权
氨（NH3）储存控制系统和基于氮氧化物（NOx）传感器的方法
- 专利标题： Ammonia (NH3) storage control system and method based on a nitrogen oxide(NOx) sensor
- 专利标题（中）： 氨（NH3）储存控制系统和基于氮氧化物（NOx）传感器的方法
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申请号： US12400156申请日： 2009-03-09
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公开(公告)号： US09255510B2公开(公告)日： 2016-02-09
- 发明人: Charles E. Solbrig , Ognyan N. Yanakiev
- 申请人： Charles E. Solbrig , Ognyan N. Yanakiev
- 申请人地址： US MI Detroit
- 专利权人： GM Global Technology Operations LLC
- 当前专利权人： GM Global Technology Operations LLC
- 当前专利权人地址： US MI Detroit
- 主分类号： F01N3/00
- IPC分类号： F01N3/00 ; F01N3/20 ; B01D53/90 ; B01D53/94 ; F02D41/02 ; F02D41/14
摘要：
A control system includes an upstream nitrogen oxide (NOx) control module that increases an upstream NOx level based on an initial upstream NOx level in an exhaust system, and an ammonia (NH3) storage condition detection module that detects a NH3 storage condition based on a difference in a downstream NOx level before and after the upstream NOx level is increased. A method includes increasing an upstream NOx level based on an initial upstream NOx level in an exhaust system, and detecting an NH3 storage condition based on a difference in a downstream NOx level before and after the upstream NOx level is increased.