# 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 3.1: Calculation of required power


For each second j of the cycle trace, the power required to overcome driving resistance and to accelerate shall be calculated using the following equation:
Prequired,j=f0×vj+f1×v2j+f2×v3j3600+kr×aj×vj×TM3600
where:
Prequired,jis the required power at second j, kW;
ajis the vehicle acceleration at second j, m/s2, and is calculated as follows:
aj=vj+1−vj3,6×tj+1−tj;
kris a factor taking the inertial resistances of the drivetrain during acceleration into account and is set to 1,03.

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Source: https://www.legislation.gov.uk/eur/2017/1151/annex/Sub/2/division/division/3./division/3.1. (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-1151/annex-Sub/2/division/division-3./division-3.1.
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.