Document ID: chunk:federal_register_of_legislation:F2024L00446:reg:6600:p24
Version: federal_register_of_legislation:F2024L00446
Segment Type: reg
Provision Reference: reg 6600 (pt 24/28)
Character Range: 858898–861904

required:

                     Rolling resistance of at least 1.0 kg/tonne and a mass of at least 30 kg; in case of RR between 0 and 1.0, the minimum of the mass difference is replaced with 100 kg instead of 30 kg;

                     (ii) If f2_ind is below f*2_L or above f2_H as defined in paragraph 3.2.3.2.2.4. of Annex B7 while performing the calculation in paragraph 3.2.3.2.2.4. of Annex B7, the following minimum difference between H and L is required:

                     Aerodynamic drag (CD × Af) of at least 0.05 m². If the manufacturer can demonstrate that the results after an extrapolation are still rational, the minimum criteria in points (i) to (iii) above can be waived.

                  (b) For each road load characteristic (i.e. mass, aerodynamic drag and tyre rolling resistance) as well as for the road load coefficients f0 and f2, the value of vehicle H shall be higher than that of vehicle L, otherwise the worst case shall be applied for that road load relevant characteristic. At the request of the manufacturer and upon approval by the responsible authority the requirements of this point can be waived.

              4.2.1.1.2.2. To achieve a sufficient difference between vehicle H and vehicle L on a particular road load relevant characteristic, or in order to fulfil criteria of paragraph 4.2.1.1.2.1. of this annex, the manufacturer may artificially worsen vehicle H, e.g. by applying a higher test mass.

4.2.1.2. Requirements for families
              4.2.1.2.1. Requirements for applying the interpolation family without using the interpolation method
               For the criteria defining an interpolation family, see paragraph 6.3.2. of this Regulation.
              4.2.1.2.2. Requirements for applying the interpolation family using the interpolation method are:
                  (a) Fulfilling the interpolation family criteria listed in paragraph 6.3.2. of this Regulation;
                  (b) Fulfilling the requirements in paragraphs 2.3.1. and 2.3.2. of Annex B6;
                  (c) Performing the calculations in paragraph 3.2.3.2. of Annex B7.
4.2.1.2.3. Requirements for applying the road load family
              4.2.1.2.3.1. At the request of the manufacturer and upon fulfilling the criteria of paragraph 6.3.3. of this Regulation, the road load values for vehicles H and L of an interpolation family shall be calculated.
              4.2.1.2.3.2. Test vehicles H and L as defined in paragraph 4.2.1.1.2. of this annex shall be referred to as HR and LR for the purpose of the road load family.
              4.2.1.2.3.3. The difference in cycle energy demand between HR and LR of the road load family shall be at least 4 per cent and shall not exceed 35 per cent based on HR over a complete WLTC Class 3 cycle.
              If more than one transmission is included in the road load family, a transmission with the highest power losses shall be used for road load determination.
              4.2.1.2.3.4. If the road load delta of