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Model-based Air and Fuel Path Control of a VCR Engine
Linköpings universitet, Institutionen för systemteknik.
2009 (engelsk)Independent thesis Advanced level (professional degree), 20 poäng / 30 hpOppgaveAlternativ tittel
Modellbaserad luft- och bränslereglering av en VCR-motor (svensk)
Abstract [en]

The objective of the work was to develop a basic control system for an advancedexperimental engine from scratch. The engine this work revolves around is a Saabvariable compression engine.A new control system is developed based on the naked engine, stripped of theoriginal control system. Experiments form the basis that the control system isbuilt upon. Controllers for throttles, intake manifold pressure for pressures lessthan ambient pressure and exhaust gas oxygen ratio are developed and validated.They were found to be satisfactory. The lambda controller is tested with severalparameter sets, and the best set is picked to be implemented in the engine. Modelsnecessary for the development and validation of the controllers are developed.These models include models for the volumetric efficiency, the pressure dynamicsof the intake manifold, the fuel injectors and wall wetting.

sted, utgiver, år, opplag, sider
2009. , s. 97
Emneord [en]
engine control, volumetric efficiency modeling, throttle control, lambda control
HSV kategori
Identifikatorer
URN: urn:nbn:se:liu:diva-52468ISRN: LiTH-ISY-EX--09/4274--SEOAI: oai:DiVA.org:liu-52468DiVA, id: diva2:282851
Presentation
2009-11-26, Linköping, 10:15 (svensk)
Uppsök
Technology
Veileder
Examiner
Tilgjengelig fra: 2010-01-07 Laget: 2009-12-22 Sist oppdatert: 2018-01-12bibliografisk kontrollert

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