Assessment of a Real Driving Emissions inter-laboratory correlation circuit
Regulation 2016/427 (later consolidated in Regulation 2017/1151) introduced light-duty vehicle on-road testing in addition to the laboratory tests for the type approval of vehicles in the European Union. Since then, vehicle emissions have been extensively measured with different types of portable equipment, whose technologies have been improved over the years to ensure smaller uncertainties and comply with the stricter requirements introduced by further regulations and amendments.
This technical report presents the procedures carried out and results obtained by a pilot test campaign performed at the European Commission Joint Research Centre – Vehicle Emission LAboratories JRC-VELA for a possible inter-laboratory correlation exercise for Real Driving Emissions (RDE) from light-duty vehicles. During each of the 10 tests driven on the same route, the emissions were measured by two portable devices simultaneously: a fixed reference one and a second one, that was changed every 3 tests.
Overall, despite some criticalities, the two systems exhibited comparable results showing the feasibility of such correlation exercise. Moreover, this campaign fostered procedural and technical improvements and highlighted the importance of standardised practices.
Finally, the findings cannot be interpreted, under any circumstances, as a general assessment of the performance of the different commercial products, as they refer only to the specific devices in use. The PEMS manufacturers were duly informed about the content of the present report.
VALENTINI Sara;
TRIKKA Maria;
COTOGNO Giulio;
CANEVARI Pierluigi;
OTURA Marcos;
GIECHASKIEL Barouch;
BONNEL Pierre;
2025-02-12
Publications Office of the European Union
JRC140105
978-92-68-24176-9 (online),
1831-9424 (online),
EUR 40217,
OP KJ-01-25-065-EN-N (online),
https://publications.jrc.ec.europa.eu/repository/handle/JRC140105,
10.2760/3632769 (online),
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