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Estimation of combustion variability using in-cylinder ionization measurements
Högskolan i Halmstad, Akademin för informationsteknologi, Halmstad Embedded and Intelligent Systems Research (EIS), Intelligenta system (IS-lab).
Högskolan i Halmstad, Akademin för informationsteknologi, Halmstad Embedded and Intelligent Systems Research (EIS), Intelligenta system (IS-lab).ORCID-id: 0000-0001-5163-2997
Högskolan i Halmstad, Akademin för informationsteknologi, Halmstad Embedded and Intelligent Systems Research (EIS), Intelligenta system (IS-lab).ORCID-id: 0000-0002-4143-2948
2001 (engelsk)Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

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. © Copyright 2001 Society of Automotive Engineers, Inc.

sted, utgiver, år, opplag, sider
Warrendale, PA: Society of Automotive Engineers, 2001.
Serie
SAE technical paper series, ISSN 0148-7191
Emneord [en]
Combustion Variability
HSV kategori
Identifikatorer
URN: urn:nbn:se:hh:diva-5020DOI: 10.4271/2001-01-3485Scopus ID: 2-s2.0-84877546502OAI: oai:DiVA.org:hh-5020DiVA, id: diva2:327068
Konferanse
SAE International Fall Fuels & Lubricants Meeting & Exhibition, Session: Experimental Investigation of SI Engines (Part A&B), San Antonio, TX, USA, September 24-27, 2001
Merknad

SAE Technical Paper 2001-01-3485. Funding: Swedish National Energy Administration (STEM)

Tilgjengelig fra: 2010-06-28 Laget: 2010-06-28 Sist oppdatert: 2018-03-23bibliografisk kontrollert
Inngår i avhandling
1. Virtual sensing of combustion quality in SI engines using the ion current
Åpne denne publikasjonen i ny fane eller vindu >>Virtual sensing of combustion quality in SI engines using the ion current
2004 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
sted, utgiver, år, opplag, sider
Göteborg: Chalmers tekniska högskola, 2004. s. 70
Serie
Doktorsavhandlingar vid Chalmers tekniska högskola. Ny serie, ISSN 0346-718x ; 2207
Emneord
Internal Combustion Engines, Spark Ignition, Estimation, Control, Neural Networks, Ion Current
HSV kategori
Identifikatorer
urn:nbn:se:hh:diva-667 (URN)2082/1009 (Lokal ID)91-7291-525-0 (ISBN)2082/1009 (Arkivnummer)2082/1009 (OAI)
Disputas
2004-11-19, Wgforssalen, Halmstad, 10:15 (engelsk)
Opponent
Veileder
Tilgjengelig fra: 2007-05-07 Laget: 2007-05-07 Sist oppdatert: 2016-04-13bibliografisk kontrollert
2. Algorithms for ion current based sensing of combustion variability and pressure peak position
Åpne denne publikasjonen i ny fane eller vindu >>Algorithms for ion current based sensing of combustion variability and pressure peak position
2003 (engelsk)Licentiatavhandling, med artikler (Annet vitenskapelig)
sted, utgiver, år, opplag, sider
Göteborg: Chalmers tekniska högsk., 2003. s. 43
Serie
Technical report. L, ISSN 1651-4998 ; 482
Emneord
SI engines, Combustion variability, Ion currents, Location of pressure peak, Exhaust Gas Recirculation, Electronic engine control
HSV kategori
Identifikatorer
urn:nbn:se:hh:diva-666 (URN)2082/1008 (Lokal ID)2082/1008 (Arkivnummer)2082/1008 (OAI)
Presentation
2003-12-09, Wigforssalen, Visionen, Kristian IV:s väg 3, Halmstad, 10:00 (engelsk)
Veileder
Prosjekter
SCALE (Self CALibrating Engine control)
Forskningsfinansiär
Knowledge Foundation
Merknad

Funding: STEM (Swedish National Energy Administration), the KK-foundation & Mecel AB

Tilgjengelig fra: 2007-05-07 Laget: 2007-05-07 Sist oppdatert: 2018-03-23bibliografisk kontrollert

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