Control of an SCR catalytic converter system for a mobile heavy-duty application

被引：136
作者：
Schär, CM [1 ]
Onder, CH [1 ]
Geering, HP [1 ]
机构：
[1] ETH, Measurement & Control Lab, CH-8092 Zurich, Switzerland
来源：
IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY | 2006年 / 14卷 / 04期
关键词：
diesel engines; exhaust gas aftertreatment; modeling; optimal control; process control; robustness;
D O I：
10.1109/TCST.2006.876634
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Selective catalytic reduction (SCR) is well known for exhaust gas aftertreatment in power plant applications. In the near future, it will be introduced in Europe in mobile heavy-duty diesel applications. Stringent, specifications and the dynamic operation mode of such applications demand advanced control strategies. Such a control strategy is presented here. It incorporates a model-based feedforward controller (FFC) which handles the known dynamics of the plant. It further contains a feedback controller (FBC) to compensate for disturbances and slowly varying parameters. The realization of the feedback control loop is possible only due to the use of a nitrogen oxide (NOx) sensor which is cross-sensitive against ammonia (NH3), and the implementation of a procedure separating the detection of NOx and NH3.
引用
收藏
页码：641 / 653
页数：13
相关论文
共 25 条
[1]  
BALL B, 2004, SP1835CD SAE
[2]  
Belli P., 1996, P 13 IFAC WORLD C, P13
[3]  
CHATTERJEE S, 2003, SP1754 SAE
[4]  
COLLIER T, 2000, SP1564 SAE
[5]  
GABRIELSSON P, 2001, COMBINED SILENCER UR
[6]  
Guzzella L., 2004, INTRO MODELING CONTR
[7]  
HOFMANN L, 2004, SP1860 SAE
[8]  
Johnson T. V., 2004, SP1835CD SAE
[9]   Urea-SCR:: a promising technique to reduce NOx emissions from automotive diesel engines [J].
Koebel, M ;
Elsener, M ;
Kleemann, M .
CATALYSIS TODAY, 2000, 59 (3-4) :335-345
[10]   NOx reduction in the exhaust of mobile heavy-duty diesel engines by urea-SCR [J].
Koebel, M ;
Elsener, M ;
Kröcher, O ;
Schär, C ;
Röthlisberger, R ;
Jaussi, F ;
Mangold, M .
TOPICS IN CATALYSIS, 2004, 30-1 (1-4) :43-48
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