Identification of air-fuel ratio dynamics in SI engines using linear parameter varying techniques

Rohit Zope; Javad Mohammadpour; Karolos Grigoriadis; Matthew Franchek; Reza Tafreshi; Houshang Masoudi

doi:10.2316/P.2011.729-044

Identification of air-fuel ratio dynamics in SI engines using linear parameter varying techniques

Rohit Zope, Javad Mohammadpour, Karolos Grigoriadis, Matthew Franchek, Reza Tafreshi, Houshang Masoudi

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

6 Scopus citations

Abstract

Accurate identification of the air-fuel ratio system dynamics in a spark-ignition (SI) engine is important to develop control methodologies leading to minimized emissions, as well as enhanced performance and efficiency. The fuel path of an SI engine exhibits time-varying dynamics. Presented in this paper is a new method for identifying the air-fuel ratio dynamics by casting the time-varying dynamics as a linear parameter-varying (LPV) system. The identification method assumes a known, physically motivated dependence of the model coefficients on the externally measurable engine parameters. The LPV system identification problem is reduced to a problem of linear regression and solved iteratively. Experiments performed on a 5.4L V8 Ford engine validate the accuracy of the proposed method.

Original language	English (US)
Title of host publication	Proceedings of the 13th IASTED International Conference on Control and Applications, CA 2011
Pages	120-125
Number of pages	6
DOIs	https://doi.org/10.2316/P.2011.729-044
State	Published - 2011
Event	13th IASTED International Conference on Control and Applications, CA 2011 - Vancouver, BC, Canada Duration: Jun 1 2011 → Jun 3 2011

Publication series

Name	Proceedings of the 13th IASTED International Conference on Control and Applications, CA 2011

Other

Other	13th IASTED International Conference on Control and Applications, CA 2011
Country/Territory	Canada
City	Vancouver, BC
Period	6/1/11 → 6/3/11

Keywords

Air-fuel ratio dynamics
Linear parameter varying systems
SI engines
System identification

ASJC Scopus subject areas

Artificial Intelligence
Computer Science Applications
Control and Systems Engineering

Access to Document

10.2316/P.2011.729-044

Cite this

Zope, R., Mohammadpour, J., Grigoriadis, K., Franchek, M., Tafreshi, R., & Masoudi, H. (2011). Identification of air-fuel ratio dynamics in SI engines using linear parameter varying techniques. In Proceedings of the 13th IASTED International Conference on Control and Applications, CA 2011 (pp. 120-125). (Proceedings of the 13th IASTED International Conference on Control and Applications, CA 2011). https://doi.org/10.2316/P.2011.729-044

Identification of air-fuel ratio dynamics in SI engines using linear parameter varying techniques. / Zope, Rohit; Mohammadpour, Javad; Grigoriadis, Karolos et al.
Proceedings of the 13th IASTED International Conference on Control and Applications, CA 2011. 2011. p. 120-125 (Proceedings of the 13th IASTED International Conference on Control and Applications, CA 2011).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Zope, R, Mohammadpour, J, Grigoriadis, K, Franchek, M, Tafreshi, R & Masoudi, H 2011, Identification of air-fuel ratio dynamics in SI engines using linear parameter varying techniques. in Proceedings of the 13th IASTED International Conference on Control and Applications, CA 2011. Proceedings of the 13th IASTED International Conference on Control and Applications, CA 2011, pp. 120-125, 13th IASTED International Conference on Control and Applications, CA 2011, Vancouver, BC, Canada, 6/1/11. https://doi.org/10.2316/P.2011.729-044

Zope R, Mohammadpour J, Grigoriadis K, Franchek M, Tafreshi R, Masoudi H. Identification of air-fuel ratio dynamics in SI engines using linear parameter varying techniques. In Proceedings of the 13th IASTED International Conference on Control and Applications, CA 2011. 2011. p. 120-125. (Proceedings of the 13th IASTED International Conference on Control and Applications, CA 2011). doi: 10.2316/P.2011.729-044

Zope, Rohit ; Mohammadpour, Javad ; Grigoriadis, Karolos et al. / Identification of air-fuel ratio dynamics in SI engines using linear parameter varying techniques. Proceedings of the 13th IASTED International Conference on Control and Applications, CA 2011. 2011. pp. 120-125 (Proceedings of the 13th IASTED International Conference on Control and Applications, CA 2011).

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abstract = "Accurate identification of the air-fuel ratio system dynamics in a spark-ignition (SI) engine is important to develop control methodologies leading to minimized emissions, as well as enhanced performance and efficiency. The fuel path of an SI engine exhibits time-varying dynamics. Presented in this paper is a new method for identifying the air-fuel ratio dynamics by casting the time-varying dynamics as a linear parameter-varying (LPV) system. The identification method assumes a known, physically motivated dependence of the model coefficients on the externally measurable engine parameters. The LPV system identification problem is reduced to a problem of linear regression and solved iteratively. Experiments performed on a 5.4L V8 Ford engine validate the accuracy of the proposed method.",

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AU - Masoudi, Houshang

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AB - Accurate identification of the air-fuel ratio system dynamics in a spark-ignition (SI) engine is important to develop control methodologies leading to minimized emissions, as well as enhanced performance and efficiency. The fuel path of an SI engine exhibits time-varying dynamics. Presented in this paper is a new method for identifying the air-fuel ratio dynamics by casting the time-varying dynamics as a linear parameter-varying (LPV) system. The identification method assumes a known, physically motivated dependence of the model coefficients on the externally measurable engine parameters. The LPV system identification problem is reduced to a problem of linear regression and solved iteratively. Experiments performed on a 5.4L V8 Ford engine validate the accuracy of the proposed method.

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Identification of air-fuel ratio dynamics in SI engines using linear parameter varying techniques

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Keywords

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