10.11.2022
EN
Official Journal of the European Union
L 290/419
Applying the least squares regression method in the range of the reference speed points, adjusted road ä ä ä and f2;L shall be determined for FL(v) with the linear coefficient f1;L set to f1,H.
The load coefficients f0;L road load coefficients f0,ind, f1,ind and f2,ind for an individual vehicle in the interpolation family shall be calculated using the following equations:
f0;ind ¼ f0;H Ä Δf0 Ü
ðTMH Ü RRH Ä TMind Ü RRind Þ ðTMH Ü RRH Ä TML Ü RRL Þ
or, if (TMH × RRH - TML × RRL) = 0, the equation for f0,ind below shall apply: f0,ind = f0,H – Δf0 f1,ind = f1,H f2;ind ¼ f2;H Ä Δf2
ðΔ½CD Ü Af âLH Ä Δ½CD Ü Af âind Þ ðΔ½CD Ü Af âLH Þ
or, if Δ(CD × Af)LH = 0, the equation for F2,ind below shall apply: f2,ind = f2,H – Δf2 where: ä Δf0 ¼ f0;H Ä f0;L ä Δf2 ¼ f2;H Ä f2;L
In the case of a road load matrix family, the road load coefficients f0, f1 and f2 for an individual vehicle shall be calculated according to the equations in paragraph 5.1.1. of Annex B4.
3.2.3.2.3.
Calculation of cycle energy demand The cycle energy demand of the applicable WLTC Ek and the energy demand for all applicable cycle phases Ek,p shall be calculated according to the procedure in paragraph 5. of this annex for the following sets k of road load coefficients and masses: ä ä k=1: f0 ¼ f0;L ; f1 ¼ f1;H ; f2 ¼ f2;L ; m ¼ TML
(test vehicle L) k=2: f0 = f0,H, f1 = f1,H, f2 = f2,H, m = TMH (test vehicle H) k=3: f0 = f0,ind, f1 = f1,H, f2 = f2,ind, m = TMind (an individual vehicle in the interpolation family) These three sets of road loads may be derived from different road load families.
3.2.3.2.4.
For Level 1A: Calculation of the CO2 value for an individual vehicle within an interpolation family using the inter­ polation method For each cycle phase p of the applicable cycle the mass of CO2 emissions g/km, for an individual vehicle shall be calculated using the following equation:
MCO2Äind;p
Í
E3;p Ä E1;p ¼ MCO2ÄL;p þ E2;p Ä E1;p
Î
Ü ðMCO2ÄH;p Ä MCO2ÄL;p Þ