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Control-Oriented Model of an SCR Catalytic Converter System
Technical Paper
2004-01-0153
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Basic knowledge about the reaction kinetics of the selective catalytic reduction (SCR) as well as measurement data from a dynamometer are used for the design of a physical mean-value model of an SCR catalytic converter system. The converter system consists of an injection device for urea solution and a coated metallic honeycomb-type converter. It is mounted in the tailpipe of a mobile, heavy-duty diesel engine.
The core of the catalytic converter model is a series of identical SCR cells describing the thermal and chemical behavior of the SCR catalytic converter. It may be used to design dynamic, model-based feedforward controllers for the injection of reducing agent. Measurements on the dynamometer show that these controllers significantly improve the performance of the SCR system.
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Authors
- M. Elsener - Paul Scherrer Institute
- C. M. Schär - Measurement and Control Laboratory, Swiss Federal Institute of Technology (ETH)
- C. H. Onder - Measurement and Control Laboratory, Swiss Federal Institute of Technology (ETH)
- H. P. Geering - Measurement and Control Laboratory, Swiss Federal Institute of Technology (ETH)
Topic
Citation
Schär, C., Onder, C., Geering, H., and Elsener, M., "Control-Oriented Model of an SCR Catalytic Converter System," SAE Technical Paper 2004-01-0153, 2004, https://doi.org/10.4271/2004-01-0153.Also In
Diesel Emissions on CD-ROM from the SAE 2004 World Congress
Number: SP-1835CD; Published: 2004-03-08
Number: SP-1835CD; Published: 2004-03-08
References
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