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Application and Quality Assessment of an Instantaneous Vehicle Emission Model at Fleet Level

Ajtay, Delia ; Weilenmann, Martin ; Onder, Chris

In: Environmental Modeling & Assessment, 2008, vol. 13, no. 3, p. 393-399

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    Titre
    • Application and Quality Assessment of an Instantaneous Vehicle Emission Model at Fleet Level
    Auteur
    • Ajtay, Delia. Section of Internal Combustion Engines/Furnaces, Swiss Federal Laboratories for Materials Testing and Research (EMPA), Ueberlandstrasse 129, 8600, Duebendorf, Switzerland
    • Weilenmann, Martin. Section of Internal Combustion Engines/Furnaces, Swiss Federal Laboratories for Materials Testing and Research (EMPA), Ueberlandstrasse 129, 8600, Duebendorf, Switzerland
    • Onder, Chris. Measurement and Control Laboratory, Swiss Federal Institute of Technology (ETH), Zurich, Switzerland
    Type de document
    • Postprint
    Langue
    • Anglais
    Publié dans
    • Environmental Modeling & Assessment, 2008, vol. 13, no. 3, p. 393-399. Springer Netherlands
    Autre version électronique
    Identifiant OAI-PMH
    • oai:doc.rero.ch:322398
    Summary
    A developed instantaneous emission model is applied to predict emission factors for small vehicle fleets for quality assessment. Extensive vehicle measurements of pre-Euro-1 gasoline, Euro-3 gasoline, and Euro-2 diesel vehicles are available. The data were used to develop individual vehicle emission models for each car. The prediction quality for each vehicle category was determined by averaging the results obtained from the individual vehicle models. The results show that the prediction quality is improved in comparison with the individual vehicles, even with a small number of vehicles in a specific category. This indicates that the errors in the individual models are mainly random and that prediction quality, when applied to fleets of cars, is exceptionally high