基本信息:
- 专利标题： CONTROL SYSTEM FOR SCR APPLICATIONS
- 专利标题（中）：控制系统SCR应用
- 申请号：EP01977743.2 申请日：2001-10-15
- 公开(公告)号：EP1339955B1 公开(公告)日：2005-08-31
- 发明人： PATCHETT, Joseph, A. , VERBEEK, Rudolfus, Petrus , GRIMSTON, Karl, Richard , RICE, Gary, Wayne , CALABRESE, John, Lawrence , VAN GENDEREN, Mathijs
- 申请人： ENGELHARD CORPORATION , TNO Automotive
- 申请人地址： 101 Wood Avenue, P.O. Box 770 Iselin, NJ 08830-0770 US
- 专利权人： ENGELHARD CORPORATION,TNO Automotive
- 当前专利权人： ENGELHARD CORPORATION,TNO Automotive
- 当前专利权人地址： 101 Wood Avenue, P.O. Box 770 Iselin, NJ 08830-0770 US
- 代理机构： Fisher, Adrian John
- 优先权： US688663 20001016
- 国际公布： WO2002033232 20020425
- 主分类号： F01N3/20
- IPC分类号： F01N3/20 ; B01D53/94
摘要：
A diesel powered vehicle is provided with an SCR system which uses an external reducing reagent to convert NOx emissions in a manner which accounts for the effects of NOx transient emissions on the reducing catalyst. Actual NOx emissions produced by the engine are filtered using a variable NOx time constant in turn correlated to the reductant/NOx storage capacity of the reducing catalyst at its current temperature to account for changes in the SCR system attributed to NOx transient emissions. Catalyst temperature is filtered using a variable catalyst time constant corresponding to current space velocity of the exhaust gas to account for changes in the catalyst temperature attributed to NOx transient emissions. The reductant is metered on the basis of the filtered, corrected NOx concentration applied at a NSR ratio based, in turn, on the filtered, corrected reducing catalyst temperature.
公开/授权文献:
- EP1339955A2 CONTROL SYSTEM FOR SCR APPLICATIONS 公开/授权日：2003-09-03
IPC结构图谱:
| F | 机械工程；照明；加热；武器；爆破 |
| --F01 | 一般机器或发动机；一般的发动机装置；蒸汽机 |
| ----F01N | 一般机器或发动机的气流消音器或排气装置；内燃机的气流消音器或排气装置 |
| ------F01N3/00 | 排气或消音装置，它具有净化的、使变为无毒的或其他的排气处理装置 |
| --------F01N3/08 | .使变为无害 |
| ----------F01N3/10 | ..对排气的有害成分进行加热转化和催化转化 |
| ------------F01N3/18 | ...以操作方法为特点的；调节 |
| --------------F01N3/20 | ....专门适用于催化转化的 |