# 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 2.1.1

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

Variable-speed engines of category NRE with maximum net power ≥ 19 kW, variable-speed engines of category IWA with maximum net power ≥ 300 kW, variable-speed engines of category RLR and variable-speed engines of category NRG.
The control area (see Figure 5.1) is defined as follows:
upper torque limit full load torque curve;
speed range speed A to n hi;
where:
speed A = n lo + 0,15 × (n hi – n lo);
n hi high speed [see Article 1(12)];
n lo low speed [see Article 1(13)].
The following engine operating conditions shall be excluded from testing:
(a) points below 30 % of maximum torque;
(b) points below 30 % of maximum net power.
If the measured engine speed A is within ± 3 % of the engine speed declared by the manufacturer, the declared engine speeds shall be used. If the tolerance is exceeded for any of the test speeds, the measured engine speeds shall be used.
Intermediate test points within the control area shall be determined as follows:
%torque = % of maximum torque;
%speed = n − n idle n 100 % − n idle × 100 ;
where: n100 % is the 100 % speed for the corresponding test cycle.
Figure 5.1
Control area for variable-speed engines of category NRE with maximum net power ≥ 19 kW, variable-speed engines of category IWA with maximum net power ≥ 300 kW and variable-speed engines of category NRG

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Source: https://www.legislation.gov.uk/eur/2017/654/annex/V/division/2/division/2.1/division/2.1.1 (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-654/annex-V/division-2/division-2.1/division-2.1.1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.