Title: Instantaneous emission data and their use in estimating road traffic emissions

Authors: Peter J. Sturm, Gerhild Kirchweger, Stefan Hausberger, Raimund A. Almbauer

Addresses: Technical University Graz, Institute for Internal Combustion Engines and Thermodynamics, Inffeldgasse 25, 8010 Graz, Austria. Technical University Graz, Institute for Internal Combustion Engines and Thermodynamics, Inffeldgasse 25, 8010 Graz, Austria. Technical University Graz, Institute for Internal Combustion Engines and Thermodynamics, Inffeldgasse 25, 8010 Graz, Austria. Technical University Graz, Institute for Internal Combustion Engines and Thermodynamics, Inffeldgasse 25, 8010 Graz, Austria

Abstract: During recent years, many measurements on chassis-dynamometers have already incorporated the online measurement of emission concentrations at the exhaust as standard alongside usual average values. These modal-collected data can be combined with the likewise modal-recorded operating condition of the vehicle (engine load) and serve as a basis for methods of calculating emissions. A reliable emission data set gives the possibility of calculating emissions for different real-world driving conditions. For many applications, it is thus no longer necessary to carry out costly and time-consuming chassis-dynamometer tests. Generation of emission data sets takes place on chassis-dynamometers using different driving patterns. Systematic investigations should show whether and how differing parameters (e.g. driving patterns) affect the accuracy of the emission calculation for real-world driving conditions. The report presents partial results of the ||Instantaneous Vehicle Emissions|| project, which is itself part of the ||MEET|| project (Methodology for Estimating Air Pollutant Emissions from Transport). MEET is a project within the framework of the 4th European Research Framework programme.

Keywords: emission calculation; instantaneous emission data; real-world emissions; traffic emissions.

DOI: 10.1504/IJVD.1998.001844

International Journal of Vehicle Design, 1998 Vol.20 No.1/2/3/4, pp.181-191

Published online: 18 Aug 2003 *

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