# Commission Regulation (EU) 2017/1151 of 1 June 2017 supplementing Regulation (EC) No 715/2007 of the European Parliament and of the Council on type-approval of motor vehicles with respect to emissions from light passenger and commercial vehicles (Euro 5 and Euro 6) and on access to vehicle repair and maintenance information, amending Directive 2007/46/EC of the European Parliament and of the Council, Commission Regulation (EC) No 692/2008 and Commission Regulation (EU) No 1230/2012 and repealing Commission Regulation (EC) No 692/2008 (Text with EEA relevance), Division 5.2.2: The default road load force shall be calculated using the following equation:


Fc=f0+ f1× v+ f2× v2
where:
Fcis the calculated default road load force as a function of vehicle velocity, N;
f0is the constant road load coefficient, N, defined by the following equation:
f0=0,140× TM;
f1is the first order road load coefficient, N/(km/h), and shall be set to zero;
f2is the second order road load coefficient, N/(km/h)2, determined using the following equation:
f2=2,8× 10− 6× TM+0,0170× width× height;
vis vehicle velocity, km/h;
TMtest mass, kg;
widthvehicle width as defined in 6.2. of Standard ISO 612:1978, m;
heightvehicle height as defined in 6.3. of Standard ISO 612:1978, m.

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Source: https://www.legislation.gov.uk/eur/2017/1151/annex/Sub/4/division/division/5./division/5.2./division/5.2.2. (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-1151/annex-Sub/4/division/division-5./division-5.2./division-5.2.2.
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.