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Control-oriented time-varying input-delayed temperature model for SI engine exhaust catalyst

Authors: Delphine Bresch-Pietri, Thomas Leroy, Nicolas Petit, American Control Conference (ACC), 2013, pp. 2189 - 2195, 17-19 June 2013, Washington, DC, USA
This paper proposes a model for the internal temperature of a SI engine catalyst. The modeling approach is grounded on a one-dimensional distributed parameter model, which is approximated by a time-varying input-delay system whose dynamics parameters (time constant, delay, gains) are obtained through a simple analytic reduction procedure. Following recent works, the distributed heat generation resulting from pollutant conversion is shown here to be equivalent to an inlet temperature entering the system at a virtual front inside the catalyst. The gain of this new input introduces a coupling to account for the conversion efficiency. Relevance of this model is qualitatively supported by experimental data.
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BibTeX:
@Proceedings{,
author = {Delphine Bresch-Pietri, Thomas Leroy, Nicolas Petit},
editor = {},
title = {Control-oriented time-varying input-delayed temperature model for SI engine exhaust catalyst},
booktitle = {American Control Conference (ACC), 2013},
volume = {},
publisher = {},
address = {Washington, DC, USA},
pages = {2189 - 2195},
year = {2013},
abstract = {This paper proposes a model for the internal temperature of a SI engine catalyst. The modeling approach is grounded on a one-dimensional distributed parameter model, which is approximated by a time-varying input-delay system whose dynamics parameters (time constant, delay, gains) are obtained through a simple analytic reduction procedure. Following recent works, the distributed heat generation resulting from pollutant conversion is shown here to be equivalent to an inlet temperature entering the system at a virtual front inside the catalyst. The gain of this new input introduces a coupling to account for the conversion efficiency. Relevance of this model is qualitatively supported by experimental data.},
keywords = {}}