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Observer Based Feedforward Air-Fuel Control of Turbocharged SI-Engines
Linköpings universitet, Institutionen för systemteknik, Fordonssystem.
Linköpings universitet, Institutionen för systemteknik, Fordonssystem.ORCID-id: 0000-0001-8646-8998
2005 (engelsk)Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Abstract: Air-fuel control on turbocharged (TC) SI-engines require precise prediction of the cylinder air-charge (CAC). Using an observer it is possible to both estimate the necessary system states and to provide a framework to design the necessary CAC feedforward controller. Here a mean value engine model of a TC SI-engine is used to develop an observer. The output of the observer is fed as an initial condition to a predictor which is used for feedforward of the CAC for air-fuel control. The resulting controller is experimentally validated on a SAAB 2.0 dm^3 TC engine using tip-in and tip-out transients. The results show that the excursions in lambda are less than 5%.

sted, utgiver, år, opplag, sider
2005.
Serie
IFAC World Congress
Emneord [en]
Engine Control, Vehicle propulsion
HSV kategori
Identifikatorer
URN: urn:nbn:se:liu:diva-138528OAI: oai:DiVA.org:liu-138528DiVA, id: diva2:1111460
Konferanse
IFAC World Congress
Tilgjengelig fra: 2017-06-19 Laget: 2017-06-19 Sist oppdatert: 2018-01-30

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