liu.seSearch for publications in DiVA
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Performance gains with EGR-flow inversion for handling non-linear dynamic effects in EGR VGT CI engines
Linköping University, The Institute of Technology. Linköping University, Department of Electrical Engineering, Vehicular Systems.
Linköping University, The Institute of Technology. Linköping University, Department of Electrical Engineering, Vehicular Systems.
2007 (English)In: Fifth IFAC Symposium on Advances in Automotive Control,2007, 2007, 531-538 p.Conference paper, Published paper (Refereed)
Abstract [en]

A non-linear compensator, that handles non-linear dynamic effects in diesel engines, is investigated. The non-linear compensator is an inversion of the EGR-flow model that is used in an inner loop in a control structure for coordinated control of EGR-fraction and oxygen/fuel ratio. A mapping of the sign reversal and the non-minimum phase behavior in VGT-position to oxygen/fuel ratio when the non-linear compensator is used shows that these system properties occur only when the EGR-valve is saturated. Simulations of a closed loop system shows that a control structure with the non-linear compensator gives less overshoots in oxygen/fuel ratio and less pumping work compared to a control structure without a non-linear compensator. The simulations show also that the mean absolute EGR error can be reduced with 95 % if an ideal EGR-actuator is used.

Place, publisher, year, edition, pages
2007. 531-538 p.
Keyword [en]
sign reversal, non-minimum phase behavior
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-39663Local ID: 50652OAI: oai:DiVA.org:liu-39663DiVA: diva2:260512
Available from: 2009-10-10 Created: 2009-10-10

Open Access in DiVA

No full text

Authority records BETA

Wahlström, JohanEriksson, Lars

Search in DiVA

By author/editor
Wahlström, JohanEriksson, Lars
By organisation
The Institute of TechnologyVehicular Systems
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric score

urn-nbn
Total: 264 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf