# 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 3: Testing procedure for transmissions

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

For testing the losses of a transmission the torque loss map for each individual transmission type shall be measured. Transmissions may be grouped into families with similar or equal CO2-relevant data following the provisions of Appendix 6 to this Annex.
For the determination of the transmission torque losses, the applicant for a certificate shall apply one of the following methods for each single forward gear (crawler gears excluded).
(1)Option 1: Measurement of the torque independent losses, calculation of the torque dependent losses.
(2)Option 2: Measurement of the torque independent losses, measurement of the torque loss at maximum torque and interpolation of the torque dependent losses based on a linear model
(3)Option 3: Measurement of the total torque loss.

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Source: https://www.legislation.gov.uk/eur/2017/2400/annex/VI/division/3 (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-2400/annex-VI/division-3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.