Division 3.2 Determination of engine speedsF1

For any v_j < 1 km/h, it shall be assumed that the vehicle is standing still and the engine speed shall be set to n_idle. The gear lever shall be placed in neutral with the clutch engaged except 1 second before beginning an acceleration from standstill where first gear shall be selected with the clutch disengaged.

For each v_j ≥ 1 km/h of the cycle trace and each gear i, i = 1 to ng_max, the engine speed, n_i,j, shall be calculated using the following equation:

n_i,j = (n/v)_i × v_j

The calculation shall be performed with floating point numbers, the results shall not be rounded.

Annotations

Textual amendments

F1: Substituted by Commission Regulation (EU) 2018/1832 of 5 November 2018 amending Directive 2007/46/EC of the European Parliament and of the Council, Commission Regulation (EC) No 692/2008 and Commission Regulation (EU) 2017/1151 for the purpose of improving the emission type approval tests and procedures for light passenger and commercial vehicles, including those for in-service conformity and real-driving emissions and introducing devices for monitoring the consumption of fuel and electric energy (Text with EEA relevance).