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Closed-loop control of EGR using ion currents
Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE), Halmstad Embedded and Intelligent Systems Research (EIS), Intelligent systems (IS-lab).
Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE), Halmstad Embedded and Intelligent Systems Research (EIS), Intelligent systems (IS-lab).
2008 (English)In: Proceedings of the 27th IASTED International Conference on Modelling, Identification, and Control, MIC / [ed] L. Bruzzone, Anaheim: ACTA Press, 2008, p. 7-Conference paper, Published paper (Refereed)
Abstract [en]

Two virtual sensors are proposed that use the spark-plug based ion current sensor for combustion engine control. The first sensor estimates combustion variability for the purpose of controlling exhaust gas recirculation (EGR) and the second sensor estimates the pressure peak position for control of ignition timing. Use of EGR in engines is important because the technique can reduce fuel consumption and NOx emissions, but recirculating too much can have the adverse effect with e.g. increased fuel consumption and poor driveability of the vehicle. Since EGR also affects the phasing of the combustion (because of the diluted gas mixture with slower combustion) it is also necessary to control ignition timing otherwise efficiency will be lost. The combustion variability sensor is demonstrated in a closed-loop control experiment of EGR on the highway and the pressure peak sensor is shown to handle both normal and an EGR condition.

Place, publisher, year, edition, pages
Anaheim: ACTA Press, 2008. p. 7-
Keywords [en]
ion currents, virtual sensing, electronic engine control, exhaust gas recirculation, ignition timing, combustion variability
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:hh:diva-1861Scopus ID: 2-s2.0-77955173650Local ID: 2082/2256ISBN: 978-0-88986-711-6 ISBN: 978-0-88986-712-3 OAI: oai:DiVA.org:hh-1861DiVA, id: diva2:239079
Conference
27th IASTED International Conference on Modelling, Identification, and Control, 11-13 February, 2008, Innsbruck, Austria
Note

Sponsors, the International Association of Science and Technology for Development (IASTED), Technical Committee on Modelling and Simulation, Technical Committee on Control, World Modelling and Simulation Forum (WMSF)

Available from: 2008-09-09 Created: 2008-09-09 Last updated: 2018-03-23Bibliographically approved

Open Access in DiVA

fulltext(2541 kB)1874 downloads
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Scopus

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Byttner, StefanHolmberg, Ulf

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
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More styles
Language
  • de-DE
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  • Other locale
More languages
Output format
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