发明授权
- 专利标题： Method for operating an exhaust system of an internal combustion engine
- 专利标题（中）： 一种用于操作内燃机排气系统的方法
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申请号： US13403658申请日： 2012-02-23
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公开(公告)号： US08839612B2公开(公告)日： 2014-09-23
- 发明人: Stefan Scherer , Markus Gloeckle , Tobias Pfister
- 申请人： Stefan Scherer , Markus Gloeckle , Tobias Pfister
- 申请人地址： DE Stuttgart
- 专利权人： Robert Bosch GmbH
- 当前专利权人： Robert Bosch GmbH
- 当前专利权人地址： DE Stuttgart
- 代理机构： Michael Best & Friedrich LLP
- 优先权： DE102011004557 20110223
- 主分类号： F01N3/00
- IPC分类号： F01N3/00 ; F01N3/10 ; F01N3/20 ; F01N11/00 ; F01N3/08 ; F02D41/02 ; F01N13/02
摘要：
A method for operating an exhaust system of an internal combustion engine, wherein nitrogen oxide (NOx) is reduced by use of a SCR catalytic converter and wherein the ageing state of the SCR catalytic converter is monitored, characterized in that during a temporally limited phase having a high proportion of nitrogen oxide (NOx) in the exhaust gas, a conversion of said SCR catalytic converter is acquired and evaluated and the ageing state of said SCR catalytic converter is suggested therefrom.
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