# Commission Regulation (EU) 2017/2400 of 12 December 2017 implementing Regulation (EC) No 595/2009 of the European Parliament and of the Council as regards the determination of the CO2 emissions and fuel consumption of heavy-duty vehicles and amending Directive 2007/46/EC of the European Parliament and of the Council and Commission Regulation (EU) No 582/2011 (Text with EEA relevance), Division 6.2.3

Extent: E+W+S+N.I.

For each measured point of the conformity of the certified CO2 emissions and fuel consumption related properties test and its corresponding point of the type approved map, the efficiency shall be calculated with:
η i = T out i axle × T in where:
ηi Efficiency of the grid point from each single control area 1 to 9
Tout Output torque [Nm]
Tin Input torque [Nm]
iaxle axle ratio [-]

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Source: https://www.legislation.gov.uk/eur/2017/2400/annex/VII/division/6/division/6.2/division/6.2.3 (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-2400/annex-VII/division-6/division-6.2/division-6.2.3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.