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Modelling cold-start emission depending on average speed from vehicles

The aim of the study is to present the results of mathematically modeled influence of the average speed on the pollutant released in the air during the cold-start process. There were taken into consideration the emission from the passenger cars (PCs) for the different fuel types, vehicles’ segments (including hybrid), and the Euro standard. In the article the simulations was performed using the COPERT software, as well as WLTP-based research. The modelling results there are presented show that the change in average speed has a significant effect on air pollutant (CO2, NOx, PM, NMVOC, CO) emissions released in cold-start process. Furthermore, the results show that pollutants’ emissions are sensitive to average speed fluctuations. Additionally, the Monte Carlo simulation was performed which confirmed the dependence of the emission change on the average speed.
Topic: Engine testing and modelling
Author: Piotr Laskowski
Co-authors: Damian Zasina Magdalena Zimakowska-Laskowska