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SCR System Optimization and Control Supported by Simulation Tools
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 08, 2013 by SAE International in United States
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The successful design and especially the control of the SCR system is a challenging process that can be supported by the application of simulation tools. As a first step, we employ physico-chemically informed ‘off-line’ models that are calibrated with the help of targeted small- and full-scale tests. Despite their high level of sophistication, this SCR model is able to be integrated in a control-oriented simulation software platform and connected to other powertrain simulation blocks. The target is to use this simulation platform as a virtual environment for the development and optimization of SCR control strategies. The above process is demonstrated in the case of a passenger car SCR. The model is calibrated at both fresh and aged catalyst condition and validated using experimental data from the engine bench under a wide variety of operating conditions. Next, the calibrated model was coupled with embedded control models, developed for Euro 6 passenger car powertrains. The final simulation platform enabled the precalibration and optimization of dosing control strategies, saving significant experimental effort and costs. Finally, it allowed the realization of the sensitivity analysis of the embedded control strategies, a procedure which guaranties the controlled system's robustness to engine dispersion and drift.
- Grigorios C. Koltsakis - Aristotle University of Thessaloniki
- Pavlos Fragkiadoulakis - Aristotle University of Thessaloniki
- Zissis Samaras - Aristotle University of Thessaloniki
- Evangelos Georgiadis - PSA Peugeot Citroen
- Charles Bizet - PSA Peugeot Citroen
- Pierre-Olivier Calendini - PSA Peugeot Citroen
- Olivier Hayat - PSA Peugeot Citroen
- Vincent Dubois - PSA Peugeot Citroen
- Christos Manetas - Exothermia SA
CitationKoltsakis, G., Fragkiadoulakis, P., Samaras, Z., Georgiadis, E. et al., "SCR System Optimization and Control Supported by Simulation Tools," SAE Technical Paper 2013-01-1075, 2013, https://doi.org/10.4271/2013-01-1075.
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