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Air-to-Cylinder Observer on a Turbocharged SI-Engine with Wastegate
Linköping University, Department of Electrical Engineering.
Linköping University, Department of Electrical Engineering.
2001 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Observers for air mass flow to the cylinder is studied on a turbocharged SI-engine with wastegate. A position change of the wastegate influences the residual gas mass and causes the volumetric efficiency to change, which produces a transient in the air mass flow to the cylinder. Two standard methods of estimating air-to-cylinder are investigated. A new nonlinear air-to-cylinder observer is suggested with two states: one for intake manifold pressure and one for the offset in in-cylinder air mass compared to expected through the volumetric efficiency. The observers are validated on intake manifold pressure data from a turbocharged spark ignited production engine with wastegate.

Place, publisher, year, edition, pages
2001. , 33-40 p.33-40 p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-23990DOI: 10.4271/2001-01-0262Local ID: 3545ISBN: 9780768007329 (print)OAI: oai:DiVA.org:liu-23990DiVA: diva2:244306
Available from: 2009-10-07 Created: 2009-10-07 Last updated: 2015-04-20

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Andersson, PerEriksson, Lars

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