# Commission Delegated Regulation (EU) 2017/654 of 19 December 2016 supplementing Regulation (EU) 2016/1628 of the European Parliament and of the Council with regard to technical and general requirements relating to emission limits and type-approval for internal combustion engines for non-road mobile machinery, Division 7.8.3.4: Calculation of cycle work

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

Before calculating the cycle work, any speed and torque values recorded during engine starting shall be omitted. Points with negative torque values have to be accounted for as zero work. The actual cycle work W act (kWh) shall be calculated based on engine feedback speed and torque values. The reference cycle work W ref (kWh) shall be calculated based on engine reference speed and torque values. The actual cycle work W act is used for comparison to the reference cycle work W ref and for calculating the brake specific emissions (see point 7.2).
W act shall be between 85 % and 105 % of W ref.

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Source: https://www.legislation.gov.uk/eur/2017/654/annex/VI/division/7/division/7.8/division/7.8.3/division/7.8.3.4 (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-654/annex-VI/division-7/division-7.8/division-7.8.3/division-7.8.3.4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.