Influence of Vehicle Mass on RDE Tailpipe Emissions from over 1000 Vehicles

Authors

F. Leach, University of Oxford; N. Molden, Emissions Analytics, Oxford

Year

2025

Print Info

Production/Publication ÖVK

Summary

A wide variety of factors can affect emissions from a vehicle. In this study, carbon dioxide and pollutant emissions (carbon monoxide, particle number, and nitrogen oxides (NOx)) from over 1000 vehicles are measured over Real Driving Emissions (RDE) test cycles from vehicles spanning the Euro 3 to Euro 6d regulations. 

These are presented in order to observe fleet-wide correlations. Vehicle mass is found to be a strong predictor of carbon dioxide emissions but a weak predictor of pollutant emissions. In addition, non-regulated pollutants including nitrous oxide (N₂O), formaldehyde, combined aromatics, alkanes, PAHs and alcohols are measured and presented. Overall, there is no obvious link between higher vehicle mass and these unregulated emissions.
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ISBN

978-3-9504969-4-9

DOI

https://doi.org/10.62626/i85x-89dq Copy link

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