Nonlinear Model Predictive Control for Cold Start Selective Catalytic Reduction

J. Sowman, Dina Shona Laila, A. J. Cruden, P. Fussey

Research output: Contribution to conferencePaper

5 Citations (Scopus)

Abstract

Selective catalytic reduction (SCR) is emerging as a key technology for reducing emissions of nitrogen oxides (NOx) from diesel vehicles, but the temperature dependence of the governing chemical kinetics are highly nonlinear and industry standard techniques of limiting ammonia injection until the catalyst reaches operating temperature leave room for improvement of NOx reduction. Cold start emissions constitute a significant fraction of urban NOx emissions, due to low road speeds and short journeys precluding the catalyst from reaching operating temperature quickly. We demonstrate that nonlinear model predictive control (NMPC) provides the desired control performance in adhering to the required constraints and meeting the complex control objectives regardless of catalyst temperature. The results include improved overall NOx reduction during a typical test cycle including cold start, without design effort specifically for low temperature operation. We also show that the controller is amenable to real-time implementation for use in a vehicle.
Original languageEnglish
Pages471-476
DOIs
Publication statusPublished - 17 Dec 2015
EventIFAC Conference on Nonlinear Model Predictive Control NMPC - Seville, Spain
Duration: 17 Sep 201520 Sep 2015

Conference

ConferenceIFAC Conference on Nonlinear Model Predictive Control NMPC
CountrySpain
CitySeville
Period17/09/1520/09/15

Fingerprint

Selective catalytic reduction
Model predictive control
Nitrogen oxides
Catalysts
Low temperature operations
Temperature
Reaction kinetics
Ammonia
Controllers
Industry

Bibliographical note

The full text is currently unavailable on the repository.

Keywords

  • Predictive Control
  • Nonlinear Control
  • Automotive Control
  • NOx Emission Reduction

Cite this

Sowman, J., Laila, D. S., Cruden, A. J., & Fussey, P. (2015). Nonlinear Model Predictive Control for Cold Start Selective Catalytic Reduction. 471-476. Paper presented at IFAC Conference on Nonlinear Model Predictive Control NMPC, Seville, Spain. https://doi.org/10.1016/j.ifacol.2015.11.323

Nonlinear Model Predictive Control for Cold Start Selective Catalytic Reduction. / Sowman, J.; Laila, Dina Shona; Cruden, A. J.; Fussey, P.

2015. 471-476 Paper presented at IFAC Conference on Nonlinear Model Predictive Control NMPC, Seville, Spain.

Research output: Contribution to conferencePaper

Sowman, J, Laila, DS, Cruden, AJ & Fussey, P 2015, 'Nonlinear Model Predictive Control for Cold Start Selective Catalytic Reduction' Paper presented at IFAC Conference on Nonlinear Model Predictive Control NMPC, Seville, Spain, 17/09/15 - 20/09/15, pp. 471-476. https://doi.org/10.1016/j.ifacol.2015.11.323
Sowman J, Laila DS, Cruden AJ, Fussey P. Nonlinear Model Predictive Control for Cold Start Selective Catalytic Reduction. 2015. Paper presented at IFAC Conference on Nonlinear Model Predictive Control NMPC, Seville, Spain. https://doi.org/10.1016/j.ifacol.2015.11.323
Sowman, J. ; Laila, Dina Shona ; Cruden, A. J. ; Fussey, P. / Nonlinear Model Predictive Control for Cold Start Selective Catalytic Reduction. Paper presented at IFAC Conference on Nonlinear Model Predictive Control NMPC, Seville, Spain.
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