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Model Based Engine Map Adaptation Using EKF
Linköping University, The Institute of Technology. Linköping University, Department of Electrical Engineering, Vehicular Systems. Scania CV AB, Södertälje, Sweden.
Linköping University, Department of Electrical Engineering, Vehicular Systems. Linköping University, The Institute of Technology.ORCID iD: 0000-0001-7349-1937
Linköping University, Department of Electrical Engineering, Vehicular Systems. Linköping University, The Institute of Technology.ORCID iD: 0000-0001-8646-8998
2010 (English)In: Proceedings of 6th IFAC Symposium on Advances in Automotive Control, IFAC Papers Online, 2010, Vol. 43, p. 697-702Conference paper, Published paper (Refereed)
Abstract [en]

A method for online map adaptation is developed. The method utilizes the EKF as a parameter estimator and handles parameter aging, operating point dependent model and measurement quality. Map adaptation, by construction, gives marginally stable models with locally unobservable modes, that are handled. The method is also suitable for offline calibration of maps where the only requirement of the data is that the entire operating region of the system is covered. The method is applied to a truck engine where an air mass-flow sensor adaptation map is estimated based on data from a diesel engine during an ETC. It is shown that an adaptation map can be found in a measurement sequence not specially designed for adaptation.

Place, publisher, year, edition, pages
IFAC Papers Online, 2010. Vol. 43, p. 697-702
Series
IFAC Proceedings Volumes, ISSN 1474-6670 ; 7
Keywords [en]
bias compensation; EKF; non-linear; observer; engine map; adaptation
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:liu:diva-137734DOI: 10.3182/20100712-3-DE-2013.00051ISBN: 978-3-902661-72-2 (print)OAI: oai:DiVA.org:liu-137734DiVA, id: diva2:1107339
Conference
6th IFAC Symposium Advances in Automotive Control Munich, Germany, July 12-14, 2010
Available from: 2017-06-09 Created: 2017-06-09 Last updated: 2021-12-28Bibliographically approved

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Höckerdal, ErikFrisk, ErikEriksson, Lars

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CiteExportLink to record
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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
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Language
  • de-DE
  • en-GB
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  • nn-NB
  • sv-SE
  • Other locale
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Output format
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