Modelling of pollutant emissions during cold start for road vehicles
by Eric Serie, Robert Joumard
International Journal of Vehicle Design (IJVD), Vol. 20, No. 1/2/3/4, 1998

Abstract: After an inquiry to 39 European laboratories, 15 500 measurements (1 measurement corresponds to 1 vehicle, 1 normalised or representative cycle and 1 pollutant) concerning 661 vehicles were analysed in order to model the pollutant over-emission (C0₂, CO, HC, NO_x) during cold start and fuel over-consumption. Using these data, we propose an equation describing the relation between over-emission and the following parameters technology (diesel, catalyst and conventional cars), average speed, ambient temperature and travelled distance. The obtained data were measured for passenger cars and an extension to duty vehicles proposed. The model is a part of an emission inventory model.

Online publication date: Mon, 18-Aug-2003

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