Division 4.5 F1

The resulting CO₂ mass emission difference for the considered period j due to load behaviour of the alternator for charging a REESS shall be calculated using the following equation:

${ΔM}_{CO2,j} = 0,0036 \times {ΔE}_{REESS,j} \times \frac{1}{η_{alternator}} \times {Willans}_{factor} \times \frac{1}{d_{j}}$

where:

ΔM_CO2,j

is the resulting CO₂ mass emission difference of period j, g/km;

ΔE_REESS,j

is the REESS energy change of the considered period j calculated in accordance with paragraph 4.1. of this Appendix, Wh;

d_j

is the driven distance of the considered period j, km;

is the index number for the considered period, where a period shall be any applicable cycle phase, combination of cycle phases and the applicable total cycle;

0,0036

is the conversion factor from Wh to MJ;

η_alternator

is the efficiency of the alternator in accordance with paragraph 4.4. of this Appendix;

Willans_factor

is the combustion process-specific Willans factor as defined in Table A6.App2/3, gCO₂/MJ;

4.5.1Division 4.5.1

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).