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Cylinder-by-Cylinder Torque Model of an SI-Engine for Real-Time Applications
Linköping University, Department of Electrical Engineering.
2005 (English)Independent thesis Basic level (professional degree), 20 credits / 30 HE creditsStudent thesisAlternative title
Cylinderindividuell Momentmodell för Realtidstillämpningar (Swedish)
Abstract [en]

In recent years Hardware-in-the-Loop HiL, has gained more and more

popularity within the vehicle industry. This is a more cost effective research alternative, as opposed to the tests done the traditional way, since in HiL testing the idea is to test the hardware of interest, such as an electronic control unit, in a simulated (or partially simulated) environment which closely resembles the real-world environment.

This thesis is ordered by Daimler Chrysler AG and the objective of this thesis is the developing of a cylinder-by-cylinder model for the purpose of emulation of misfire in a four-stroke SI-engine. This purpose does not demand a precise modelling of the cylinder pressure but rather an adequate modelling of position and amplitude of the torque produced by each cylinder. The model should be preferebly computaionally tractable so it can be run on-line. Therefore, simplifications are made such as assuming the rule of a homogenous mixture, pressure and temperature inside the cylinder at all steps, so the pressure model can be analytical and able to cope with the real-time demand of the HiL. The model is implemented in Simulink and simulated with different sample rates and an improvement is to be seen as the sample rate is decreased.

Place, publisher, year, edition, pages
Institutionen för systemteknik , 2005. , 55 p.
Keyword [en]
CCEM, Hil, Simulink, Wiebe Function, Cylinder Pressure, Torque Balance
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-5396ISRN: LiTH-ISY-EX--05/3830--SEOAI: oai:DiVA.org:liu-5396DiVA: diva2:21289
Subject / course
Vehicular Systems
Uppsok
Technology
Supervisors
Examiners
Available from: 2006-01-12 Created: 2006-01-12 Last updated: 2012-12-11

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
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  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
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Output format
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