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dc.contributor.authorVojtíšek M.
dc.contributor.authorKotek M.
dc.date.accessioned2019-03-27T22:30:57Z
dc.date.available2019-03-27T22:30:57Z
dc.date.issued2014
dc.identifierV3S-226042
dc.identifier.citationVOJTÍŠEK, M. and M. KOTEK. ESTIMATION OF ENGINE INTAKE AIR MASS FLOW USING A GENERIC SPEED-DENSITY METHOD. MECCA Journal of Middle European Construction and Design of Cars. 2014, 2014(2), 7-15. ISSN 1214-0821. DOI 10.2478/mecdc-2014-0002.
dc.identifier.issn1214-0821 (print)
dc.identifier.urihttp://hdl.handle.net/10467/81584
dc.description.abstractMeasurement of real driving emissions (RDE) from internal combustion engines under real-world operation using portable, onboard monitoring systems (PEMS) is becoming an increasingly important tool aiding the assessment of the effects of new fuels and technologies on environment and human health. The knowledge of exhaust flow is one of the prerequisites for successful RDE measurement with PEMS. One of the simplest approaches for estimating the exhaust flow from virtually any engine is its computation from the intake air flow, which is calculated from measured engine rpm and intake manifold charge pressure and temperature using a generic speed-density algorithm, applicable to most contemporary four-cycle engines. In this work, a generic speed-density algorithm was compared against several reference methods on representative European production engines – a gasoline port-injected automobile engine, two turbocharged diesel automobile engines, and a heavy-duty turbocharged diesel engine. The overall results suggest that the uncertainty of the generic speed-density method is on the order of 10% throughout most of the engine operating range, but increasing to tens of percent where high-volume exhaust gas recirculation is used. For non-EGR engines, such uncertainty is acceptable for many simpler and screening measurements, and may be, where desired, reduced by engine-specific calibration.eng
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherMECCA ČVUT
dc.relation.ispartofMECCA Journal of Middle European Construction and Design of Cars
dc.relation.urihttp://www.degruyter.com/dg/viewarticle.fullcontentlink:pdfeventlink/$002fj$002fmecdc.2014.12.issue-1$002fmecdc-2014-0002$002fmecdc-2014-0002.pdf?t:ac=j$002fmecdc.2014.12.issue-1$002fmecdc-2014-0002$002fmecdc-2014-0002.xml
dc.subjectINTERNAL COMBUSTION ENGINEeng
dc.subjectINTAKE AIR FLOWeng
dc.subjectSPEED-DENSITYeng
dc.subjectVOLUMETRIC EFFICIENCYeng
dc.subjectREAL DRIVING EMISSIONSeng
dc.subjectPORTABLE ON-BOARD EMISSIONS MONITORING SYSTEMSeng
dc.titleESTIMATION OF ENGINE INTAKE AIR MASS FLOW USING A GENERIC SPEED-DENSITY METHODeng
dc.typečlánek v časopisecze
dc.typejournal articleeng
dc.identifier.doi10.2478/mecdc-2014-0002
dc.relation.projectidinfo:eu-repo/grantAgreement/Czech Science Foundation/GA/GA13-01438S/CZ/Mechanisms of Toxicity of Biofuel Particulate Emissions/BIOTOX
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/OPVK/CZ.1.07%2F2.3.00%2F30.0034/CZ/Support of inter-sectoral mobility and quality enhancement of research teams at Czech Technical University in Prague/POSTDOC
dc.relation.projectidinfo:eu-repo/grantAgreement/Ministry of Education, Youth and Sports/LO/LO1311/CZ/Development of Vehicle Centre of Sustainable Mobility/CVUM
dc.rights.accessrestrictedAccess
dc.type.statusPeer-reviewed
dc.type.versionpublishedVersion


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