European regulations for both light-duty (LDV) and heavy-duty vehicles (HDVs) require from 2021 the monitoring of in-use fuel consumption using on-board monitoring (OBFCM) devices. For LDVs, the accuracy to measure fuel consumed is set by regulation to ±5%, while for HDVs no requirements exist so far. In this study, OBFCM data from 15 LDVs and 12 HDVs are measured in lab and on-road. Results indicate that the FC measured by the OBFCM, for the majority of the vehicles, satisfies the accuracy requirements of ±5% over complete WLTP tests or complete on-road trips. Also, for most of the vehicles the OBD distance can be measured with an accuracy of ±1.5% on-road when Global Positioning System (GPS) distance is used as a reference. The results of this study could be used to further support the standardization of OBFCM accuracy in vehicles, and the setup of the EU real-world CO2 emissions monitoring approach. ; JRC.C.4-Sustainable Transport
How accurately can we measure vehicle fuel consumption in real world operation?
29.09.2020
Sonstige
Elektronische Ressource
Englisch
DDC: | 629 |
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