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.
PAVLOVIC Jelica;
FONTARAS Georgios;
BROEKAERT Stijn;
CIUFFO Biagio;
KTISTAKIS Markos;
GRIGORATOS Theodoros;
2021-02-04
PERGAMON-ELSEVIER SCIENCE LTD
JRC122028
1361-9209 (online),
https://www.sciencedirect.com/science/article/pii/S1361920920308518?via%3Dihub#s0140,
https://publications.jrc.ec.europa.eu/repository/handle/JRC122028,
10.1016/j.trd.2020.102666 (online),
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