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A novel NH3 slip control for diesel engine selective catalytic reduction aftertreatment system.
- Source :
- International Journal of Engine Research (Sage Publications, Ltd.); Feb2016, Vol. 17 Issue 2, p169-178, 10p
- Publication Year :
- 2016
-
Abstract
- To meet the future emission legislations, selective catalytic reduction aftertreatment system becomes a leading aftertreatment technique for heavy-duty diesel engines. In this article, a two-cell selective catalytic reduction model is first calibrated and verified on an experimental test bench. In order to regulate the ammonia coverage ratio in a proper range, an ammonia storage control is proposed based on the selective catalytic reduction model. The problem of NH<subscript>3</subscript> slip during temperature rise is discussed and a corresponding perturbation injection control is proposed to buffer the sudden change in selective catalytic reduction ammonia storage capability. The NH<subscript>3</subscript> slip control performance of the proposed strategy is experimentally validated in European Transient Cycle. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14680874
- Volume :
- 17
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- International Journal of Engine Research (Sage Publications, Ltd.)
- Publication Type :
- Academic Journal
- Accession number :
- 112802262
- Full Text :
- https://doi.org/10.1177/1468087414562865