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The effect of in-cylinder gas flow on the interpretation of the ionization sensor signal
Lund Institute of Technology, Sweden.
Lund Institute of Technology, Sweden.
Lund Institute of Technology, Sweden.
Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE), Halmstad Embedded and Intelligent Systems Research (EIS).ORCID iD: 0000-0002-4143-2948
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2003 (English)Conference paper, Published paper (Refereed)
Abstract [en]

The location of the peak pressure can serve as a control parameter to adjust ignition timing and optimize engine performance. The ionization sensor, an electrical probe for combustion diagnostics, can provide information about the peak pressure location. However, the reliability of such information is rather poor. In-cylinder gas flow at the electrodes may be one reason for this. We present results from an investigation of the relationship between ionization sensor current and pressure under various gas flow conditions. The gas flow velocity in the vicinity of the electrode gap was measured by LDA. From the results one may infer how the in-cylinder gas flow affects the reliability of the prediction of pressure peak location from the ionization sensor signal. One finding is that high bulk gas flow impairs the precision of the prediction in certain configurations.

Place, publisher, year, edition, pages
Warrendale: S A E Inc. , 2003. Vol. 112, no 03
Series
SAE Technical Papers, ISSN 0148-7191 ; 2003-01-1120
Keyword [en]
Combustion diagnostics, Control parameters, Electrical probes, Electrode gap, Engine performance, Flow condition, Ignition timing, Peak pressure, Pressure peaks, Sensor current, Sensor signals
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:hh:diva-5559DOI: 10.4271/2003-01-1120Scopus ID: 2-s2.0-80055065267OAI: oai:DiVA.org:hh-5559DiVA: diva2:408953
Conference
SAE 2003 World Congress & Exhibition, March 3, 2003, Detroit, Michigan, United States
Available from: 2011-04-06 Created: 2010-09-02 Last updated: 2016-04-13Bibliographically 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. 70 p.
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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Publisher's full textScopushttp://papers.sae.org/2003-01-1120

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CiteExportLink to record
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Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
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  • nn-NO
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Output format
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  • asciidoc
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