Commission Implementing Regulation (EU) 2017/1153Show full title

3.2. Interpretation of the NEDC CO₂ reference values determined for vehicle H and L

For each WLTP interpolation family, the manufacturer shall declare the NEDC CO₂ mass emissions combined value for vehicle H, and, where applicable, vehicle L, to the approval authority. The type-approval authority shall ensure that the NEDC CO₂ reference values for vehicle H and, where applicable, vehicle L are determined in accordance with point 3.1.2 and 3.1.3, and that the reference values for the respective vehicle is interpreted in accordance with points 3.2.1 to 3.2.5.

3.2.1. The NEDC CO₂ value for test vehicle H or L to be used for the purpose of the calculations set out in point 4 shall be the manufacturer-declared value, if the NEDC CO₂ reference value does not exceed that value by more than 4 per cent. The reference value may be lower without any limitation.

3.2.2. If the NEDC CO₂ reference value exceeds the manufacturer-declared value by more than 4 per cent, the reference value may be used for the purpose of the calculations set out in point 4 for test vehicle H or L, or the manufacturer may request that a physical measurement is performed under the responsibility of the type-approval authority in accordance with the procedure referred to in Annex XII to Regulation (EC) No 692/2008, taking into account the precisions specified in point 2 of this Annex.

3.2.3. If the physical measurement referred to in point 3.2.2, amplified by the Ki-factor, does not exceed the manufacturer-declared value by more than 4 per cent, the declared value shall be used for the purpose of the calculations set out in point 4.

3.2.4. If the physical measurement, amplified by the Ki-factor, exceeds the manufacturer-declared value by more than 4 per cent, another physical measurement of the same vehicle shall be performed and the results shall be amplified by the Ki-factor. If the average of those two measurements does not exceed the declared value by more than 4 per cent, the declared value shall be used for the purpose of the calculations set out in point 4.

3.2.5. If the average of the two measurements referred to in point 3.2.4 exceeds the manufacturer-declared value by more than 4 per cent, a third measurement shall be performed and the results shall be amplified by the Ki-factor. The average of the three measurements shall be used for the purpose of the calculations set out in point 4.

3.2.6. Where the NEDC CO₂ value for vehicle H or L is determined in accordance with point 3.2.1, the type-approval authority or the designated technical service shall use the relevant commands in the correlation tool to send the signed summary text file to a time-stamp-server and the following functional mailbox:

[e-mail]

A time-stamped reply shall be sent in return including a randomly generated integer number in the range 1 to 100 calculated by the correlation tool. Where the number is in the range of 91 to 100 the vehicle shall be selected for one physical measurement in accordance with the procedure referred to in Annex XII to Regulation (EC) No 692/2008, taking into account the precisions specified in point 2 of this Annex. The test results shall be documented in accordance with Annex VIII to Directive 2007/46/EC.

In the case the NEDC CO₂ value for both vehicles H and L is determined in accordance with point 3.2.1, the vehicle configuration selected for physical measurement shall be the vehicle L, if the random number is in the range to 91 to 95, and vehicle H, if the random number is in the range of 96 to 100.

3.2.7. Notwithstanding point 3.2.6, a type-approval authority shall, where applicable, based on a proposal by a technical service, in those cases where the NEDC CO₂ value is determined in accordance with point 3.2.1, request that a vehicle undergoes one physical measurement where, based on their independent expertise, there are justified reasons to consider that the declared NEDC CO₂ value is too low in relation to a measured NEDC CO₂ value. The test results shall be documented in accordance with Annex VIII to Directive 2007/46/EC.

3.2.8. Where a physical test is performed in accordance with point 3.2.6 or point 3.2.7, the type-approval authority shall for each WLTP interpolation family record the relative deviation (De) between the measured value and the manufacturer-declared value determined as follows:

Where:

RTr

is the random test result, amplified by the Ki-factor;

DV

is the manufacturer-declared value.

The De factor shall be recorded in the type-approval certificate and in the certificate of conformity.

Where the type-approval authority finds that the physical test results do not confirm the input data provided by the manufacturer and, in particular, the data referred to in points 20, 22 and 44 of Table 1 in point 2.4, a verification factor shall be set to 1 and be recorded in the type-approval certificate and in the certificate of conformity. Where the input data is confirmed or where the error in the input data is not to the benefit of the manufacturer the verification factor shall be set to 0.