Difference between revisions of "Publications:Closed-loop control of EGR using ion currents"

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|Name=Byttner, Stefan [stefan] (Högskolan i Halmstad [2804], Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE) [3905], Halmstad Embedded and Intelligent Systems Research (EIS) [3938], Intelligenta system (IS-lab) [3941]);Holmberg, Ulf [ulho] (Högskolan i Halmstad [2804], Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE) [3905], Halmstad Embedded and Intelligent Systems Research (EIS) [3938], Intelligenta system (IS-lab) [3941])
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|Name=Byttner, Stefan (stefan) (Högskolan i Halmstad (2804), Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE) (3905), Halmstad Embedded and Intelligent Systems Research (EIS) (3938), Intelligenta system (IS-lab) (3941));Holmberg, Ulf (ulho) (Högskolan i Halmstad (2804), Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE) (3905), Halmstad Embedded and Intelligent Systems Research (EIS) (3938), Intelligenta system (IS-lab) (3941))
 
|Title=Closed-loop control of EGR using ion currents
 
|Title=Closed-loop control of EGR using ion currents
 
|PublicationType=Conference Paper
 
|PublicationType=Conference Paper

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Title Closed-loop control of EGR using ion currents
Author Stefan Byttner and Ulf Holmberg
Year 2008
PublicationType Conference Paper
Journal
HostPublication Proceedings of the 27th IASTED International Conference on Modelling, Identification, and Control, MIC
Conference 27th IASTED International Conference on Modelling, Identification, and Control, 11-13 February, 2008, Innsbruck, Austria
DOI
Diva url http://hh.diva-portal.org/smash/record.jsf?searchId=1&pid=diva2:239079
Abstract 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.