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This article is part of a series on
Driving cycles
Europe
NEDC: ECE R15 (1970) / EUDC (1990) (UN ECE regulations 83 and 101)
United States
EPA Federal Test: FTP 72/75 (1978) / SFTP US06/SC03 (2008)
Japan
10 mode (1973) / 10-15 Mode (1991) / JC08 (2008)
Global Technical Regulations
WLTP (2015) (Addenda 15)
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t
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The New European Driving Cycle (NEDC) was a driving cycle, last updated in 1997, designed to assess the emission levels of car engines and fuel economy in passenger cars (which excludes light trucks and commercial vehicles). It is also referred to as MVEG cycle (Motor Vehicle Emissions Group).
The NEDC, which is supposed to represent the typical usage of a car in Europe, is repeatedly criticised for delivering economy-figures which are unachievable in reality. It consists of four repeated ECE-15 urban driving cycles (UDC) and one Extra-Urban driving cycle (EUDC). The WLTP test cycle replaced NEDC for vehicles approved for sale in Europe after September 2018, and all published figures for vehicles on sale after January 2019 should use WLTP fuel economy figures[1]
The NEDC test procedure is defined in UNECE R101[2] for the measurement of CO2 and fuel consumption and/or the measurement of electric energy consumption and electric range in hybrid and fully electric M1 and N1 vehicles, and UNECE R83[3] for the measurement of emission of pollutants of M, N1 and M2 vehicles. It was maintained by the UNECE World Forum for Harmonization of Vehicle Regulations (WP.29),[4] which also worked on its successor, the Worldwide harmonized Light vehicles Test Procedures (WLTP).[5]
Although originally designed for petrol-based road vehicles, the driving cycle is now also used for diesel vehicles and to estimate the electric power consumption and driving range of hybrid and battery electric vehicles.
^"Official fuel consumption figures and WLTP | the AA".
^Cite error: The named reference UNECE R101 was invoked but never defined (see the help page).
^Cite error: The named reference UNECE R83 was invoked but never defined (see the help page).
^"Vehicle Regulations". UNECE Transport Division/World Forum for Harmonization of Vehicle Regulations. Retrieved 30 April 2015.
^"Global Technical Regulation No. 15 (Worldwide harmonized Light vehicles Test Procedure)". UNECE. UN. Retrieved 12 March 2014.
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