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A Phenomenological Control Oriented Lean NOx Trap Model
Technical Paper
2003-01-1164
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Lean NOx Trap (LNT) is an aftertreatment device typically used to reduce oxides of nitrogen (NOx) emissions for a lean burn engine. NOx is stored in the LNT during the lean operation of an engine. When the air-fuel ratio becomes rich, the stored NOx is released and catalytically reduced by the reductants such as CO, H2 and HC. Tailpipe NOx emissions can be significantly reduced by properly modulating the lean (storage) and rich (purge) periods. A control-oriented lumped parameter model is presented in this paper. The model captures the key steady state and transient characteristics of an LNT and includes the effects of the important engine operating parameters. The model can be used for system performance evaluation and control strategy development.
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Authors
Citation
Kim, Y., Sun, J., Kolmanovsky, I., and Koncsol, J., "A Phenomenological Control Oriented Lean NOx Trap Model," SAE Technical Paper 2003-01-1164, 2003, https://doi.org/10.4271/2003-01-1164.Also In
References
- Jeffery S. Hepburn Thanasiu Eva Dobson Douglas A. Watkins William L ‘Experimental and Modeling Investigation of NOx Trap Performance,” SAE 962051 March 1996
- Ketfi-Cherif Ahmed von Wissel Dirk Beurthey Stephen Sprine Michel “Modeling and Control of a NOx Trap Catalyst,” SAE 2000-01-1199 March 2000
- Kojima Shinji Baba Naoki Matsunaga Shinichi Senda Kouji Katoh Kenji Itoh Takaaki “Modeling and Numerical Analysis of NOx Storage Reduction Catalysts - on the Two Effects of Rich Spike Duration,” SAE 2001-01-1297 March 2001
- Brandt E.P. Wang Yanying Grizzle J.W. “Dynamic Modeling of a Three-Way Catalyst for SI Engine Exhaust Emission Control,” IEEE Transactions on Control System Technology September 2000 8 5
- Wang Yanying Raman Shankar Grizzle Jessy “Dynamic Modeling of a Lean NOx Trap for Lean Burn Engine Control,” Proceedings of the American Control Conference San Diego, CA June 1999
- Sun Jing Kolmanovsky Ilya Brehob Diana Cook Jeffrey Buckland Julia Haghgooie Mo “Modeling and Control of Gasoline Direct Injection Stratified Charge Engines,” Proceedings of the IEEE Conference on Control Applications Hawaii, HI August 22 27 1999