# 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), Appendix 11

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

Standard torque loss values – geared angle drive
Consistent with the standard torque loss values for the combination of a transmission with a geared angle drive in Appendix 8, the standard torque losses of a geared angle drive without transmission shall be calculated from:
Tl,ad,in=Tadd0+Tadd1000×nin1000rpm+fT_add×Tin
where:
Tl,in Torque loss related to the input shaft of transmission [Nm]
Taddx Additional angle drive gear drag torque at x rpm [Nm]
(if applicable)
nin Speed at the input shaft of transmission [rpm]
fT 1-η;
ηefficiency
fT_add 0,04 for angle drive gear
Tin Torque at the input shaft of transmission [Nm]
Tmax,in Maximum allowed input torque in any forward gear of transmission [Nm]
max(Tmax,in,gear)
Tmax,in,gear Maximum allowed input torque in gear, where gear = 1, 2, 3,… top gear)
Taddx=Tadd0=Tadd1000=10Nm×Tmaxin2000Nm=0,005×Tmaxin
The standard torque losses obtained by the calculations above may be added to the torque losses of a transmission obtained by Options 1-3 in order to obtain the torque losses for the combination of the specific transmission with an angle drive.

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Source: https://www.legislation.gov.uk/eur/2017/2400/annex/VI/appendix/11 (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-2400/annex-VI/appendix-11
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.