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Robust tuning of Individual Cylinders AFR in SI Engines with the Ion Current
Halmstad University, School of Information Technology, Halmstad Embedded and Intelligent Systems Research (EIS), Intelligent Systems´ laboratory.ORCID iD: 0000-0002-4143-2948
Halmstad University, School of Information Technology, Halmstad Embedded and Intelligent Systems Research (EIS), Intelligent Systems´ laboratory.
Halmstad University, School of Information Technology, Halmstad Embedded and Intelligent Systems Research (EIS), Intelligent Systems´ laboratory.
2005 (English)In: SAE Transactions, ISSN 0096-736X, Vol. 114, no 03, p. 48-52Article in journal (Refereed) Published
Abstract [en]

A method for robust tuning of individual cylinders air-fuel ratio is proposed. The fuel injection is adjusted so that each cylinder has the same air-fuel ratio in inner control loops, and the resulting air-fuel ratio in the exhaust pipe is controlled with an exhaust gas oxygen sensor (EGO) in an outer control loop to achieve stoichiometric air-fuel ratio. Correction factors to provide cylinder individual fuel injection timing are calculated based on measurements of the ion currents for the individual cylinders. An implementation in a production vehicle is shown with results from driving on the highway. © 2005 SAE International.

Place, publisher, year, edition, pages
New York: Society of Automotive Engineers, 2005. Vol. 114, no 03, p. 48-52
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:hh:diva-14594DOI: 10.4271/2005-01-0020Scopus ID: 2-s2.0-79959543541OAI: oai:DiVA.org:hh-14594DiVA, id: diva2:404648
Conference
SAE World Congress & exhibition 2005
Available from: 2011-03-17 Created: 2011-03-17 Last updated: 2018-03-23Bibliographically approved
In thesis
1. Virtual sensing of combustion quality in SI engines using the ion current
Open this publication in new window or tab >>Virtual sensing of combustion quality in SI engines using the ion current
2004 (English)Doctoral thesis, comprehensive summary (Other academic)
Place, publisher, year, edition, pages
Göteborg: Chalmers tekniska högskola, 2004. p. 70
Series
Doktorsavhandlingar vid Chalmers tekniska högskola. Ny serie, ISSN 0346-718x ; 2207
Keyword
Internal Combustion Engines, Spark Ignition, Estimation, Control, Neural Networks, Ion Current
National Category
Mechanical Engineering
Identifiers
urn:nbn:se:hh:diva-667 (URN)2082/1009 (Local ID)91-7291-525-0 (ISBN)2082/1009 (Archive number)2082/1009 (OAI)
Public defence
2004-11-19, Wgforssalen, Halmstad, 10:15 (English)
Opponent
Supervisors
Available from: 2007-05-07 Created: 2007-05-07 Last updated: 2016-04-13Bibliographically approved

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Wickström, NicholasByttner, StefanHolmberg, Ulf

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