View source for Publications:Estimation of Combustion Variability Using In-Cylinder Ionization Measurements

<div style='display: none'>
== Do not edit this section ==
</div>
{{PublicationSetupTemplate|Author=Stefan Byttner, Thorsteinn Rögnvaldsson, Nicholas Wickström
|PID=327068
|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]);Rögnvaldsson, Thorsteinn [denni] (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]);Wickström, Nicholas [nicholas] (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=Estimation of Combustion Variability Using In-Cylinder Ionization Measurements
|PublicationType=Conference Paper
|ContentType=Refereegranskat
|Language=eng
|Journal=
|JournalISSN=
|Status=
|Volume=
|Issue=
|HostPublication=
|Conference=SAE International Fall Fuels & Lubricants Meeting & Exhibition, September 2001, San Antonio, TX, USA, Session: Experimental Investigation of SI Engines (Part A&B)
|StartPage=
|EndPage=
|Year=2001
|Edition=
|Pages=
|City=Warrendale, Pa.
|Publisher=Society of automotive engineers (SAE)
|Series=SAE technical paper series ; 2001
|SeriesISSN=0148-7191
|ISBN=
|Urls=http://papers.sae.org/2001-01-3485
|ISRN=
|DOI=http://dx.doi.org/10.4271/2001-01-3485
|ISI=
|PMID=
|ScopusId=
|NBN=urn:nbn:se:hh:diva-5020
|LocalId=
|ArchiveNumber=
|Keywords=Combustion Variability
|Categories=Teknik och teknologier (2)
|ResearchSubjects=
|Projects=
|Notes=Product code: 2001-01-3485
|Abstract=<p>This paper investigates the use of the ionization current to estimate the Coefficient of Variation for the Indicated Mean Effective Pressure, COV(IMEP), which is a common variable for combustion stability in a spark-ignited engine. Stable combustion in this definition implies that the variance of the produced work, measured over a number of consecutive combustion cycles, is small compared to the mean of the produced work. The COV(IMEP) is varied experimentally either by increasing EGR flow or by changing the air-fuel ratio, in both a laboratory setting (engine in dynamometer) and in an on-road setting. The experiments show a positive correlation between COV(Ion integral), the Coefficient of Variation for the integrated Ion Current, and COV(IMEP), when measured under low load on an engine in a dynamometer, but not under high load conditions. On-road experiments show a positive correlation, but only in the EGR and the lean burn case. An approach based on individual cycle classification for real-time estimation of combustion stability is discussed.</p>
|Opponents=
|Supervisors=
|Examiners=
|Patent=
|ThesisLevel=
|Credits=
|Programme=
|Subject=
|Uppsok=
|DefencePlace=
|DefenceLanguage=
|DefenceDate=
|CreatedDate=2010-06-28
|PublicationDate=2010-06-28
|LastUpdated=2013-10-15
|diva=http://hh.diva-portal.org/smash/record.jsf?searchId=1&pid=diva2:327068}}
<div style='display: none'>

== Keep all hand-made modifications below ==
</div>{{PublicationDisplayTemplate}}