发明申请
- 专利标题： SYSTEM FOR DETERMINING NOX CONVERSION EFFICIENCY OF AN EXHAUST GAS AFTERTREATMENT COMPONENT
- 专利标题（中）： 用于确定排气后处理组分的NOX转化效率的系统
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申请号： US11456602申请日： 2006-07-11
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公开(公告)号： US20080010974A1公开(公告)日： 2008-01-17
- 发明人: Timothy R. Frazier , Ken R. Federle
- 申请人： Timothy R. Frazier , Ken R. Federle
- 主分类号： F01N3/00
- IPC分类号： F01N3/00 ; F01N5/04 ; F01N3/10
摘要：
A system for determining a NOx conversion efficiency of an exhaust gas aftertreatment component comprises means for determining an operating temperature of the exhaust gas aftertreatment component, and a control circuit. The control circuit includes a memory having instructions stored therein that are executable by the control circuit to determine a time duration that the operating temperature of the exhaust gas aftertreatment component is above a predefined temperature, and to determine the NOx conversion efficiency of the exhaust gas aftertreatment component as a function of the time duration.
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