发明授权
US08555618B2 Method for detecting the minimum opening time of a reducing agent feed device in an exhaust gas aftertreatment system comprising an SCR catalyst
有权
用于检测包括SCR催化剂的废气后处理系统中的还原剂进料装置的最短打开时间的方法
- 专利标题： Method for detecting the minimum opening time of a reducing agent feed device in an exhaust gas aftertreatment system comprising an SCR catalyst
- 专利标题（中）： 用于检测包括SCR催化剂的废气后处理系统中的还原剂进料装置的最短打开时间的方法
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申请号： US12678553申请日： 2008-09-18
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公开(公告)号： US08555618B2公开(公告)日： 2013-10-15
- 发明人: Peter Bauer , Rainer Bentz , Joris Fokkelman , Joachim Frank , Hermann Ketterl , Ingo Koops , Robert Leinfelder
- 申请人： Peter Bauer , Rainer Bentz , Joris Fokkelman , Joachim Frank , Hermann Ketterl , Ingo Koops , Robert Leinfelder
- 申请人地址： DE Hannover
- 专利权人： Continental Automotive GmbH
- 当前专利权人： Continental Automotive GmbH
- 当前专利权人地址： DE Hannover
- 代理机构： King & Spalding L.L.P.
- 优先权： DE102007044610 20070919
- 国际申请： PCT/EP2008/062481 WO 20080918
- 国际公布： WO2009/037327 WO 20090326
- 主分类号： F01N3/20
- IPC分类号： F01N3/20 ; F01N9/00
摘要：
In a method for adapting the reducing agent feed in an exhaust gas aftertreatment system having an SCR catalyst for removing nitrogen oxides from the exhaust gas of an internal combustion engine and at least one reducing agent feed device, the minimum opening time of the reducing agent feed device is determined during operation and while suspending nitrogen emission, carrying out the following steps: a) the opening time of the reducing agent feed device is gradually prolonged until b) a reducing agent-sensitive sensor in the exhaust gas aftertreatment system detects a reducing agent signal. An exhaust gas aftertreatment system is designed accordingly for carrying out the method and a device is designed for controlling an exhaust gas aftertreatment system.