Title: Modelling of pollutant emissions during cold start for road vehicles

Authors: Eric Serie, Robert Joumard

Addresses: INRETS, case 24, 69675 Bron cedex, France. INRETS, case 24, 69675 Bron cedex, France

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, NOx) 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.

Keywords: ambient temperature; cold start; consumption; cycle; emission; engine temperature; personal car; pollutant; speed; transport; travelled distance.

DOI: 10.1504/IJVD.1998.001840

International Journal of Vehicle Design, 1998 Vol.20 No.1/2/3/4, pp.172-180

Published online: 18 Aug 2003 *

Full-text access for editors Access for subscribers Purchase this article Comment on this article