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

3. DETERMINATION OF NEDC CO₂ EMISSION AND FUEL CONSUMPTION VALUES FOR VEHICLE H AND L

3.1. Determination of NEDC CO₂ reference values, phase-specific values and fuel consumption values for vehicle H and L

The type-approval authority shall ensure that the NEDC CO₂ reference value for the respective vehicle H and, where applicable, vehicle L of a WLTP interpolation family as well as the phase-specific values and the fuel consumption is determined in accordance with points 3.1.2 and 3.1.3.

In the case the NEDC road loads calculated in accordance with point 2.3.8 for vehicle H and L are the same, the NEDC CO₂ reference value shall be determined for vehicle H only.

3.1.1. Correlation tool input and output

The type-approval authority or designated technical service shall ensure that the input data file for the correlation tool is complete. Following a completed test run on the correlation tool, the person designated in accordance with point 2.1.1 shall digitally sign

(a)

the original correlation output report;

(b)

the summary text file.

The correlation output report referred to in point (a) shall include the input data used, the output data resulting from the execution of the correlation, the manufacturer-declared value and, where available, the result of physical vehicle tests. The summary text file referred to in point (b) shall include the manufacturer-declared value and the CO₂ emission value resulting from the correlation tool and relevant identifiers, such as the code for the interpolation family concerned.

3.1.2. NEDC CO₂ reference value for vehicle H

The correlation tool shall be used to execute the following simulated tests using the relevant input data file referred to in point 3.1.1.:

(a)

a WLTP test of vehicle H;

(b)

an NEDC test of vehicle H.

The NEDC CO₂ reference value for vehicle H shall be determined as follows:

Where:

CO_2,H

is the NEDC CO₂ reference value for vehicle H;

WLTP_ACGcorr,H

is the average of the WLTP CO₂ values for vehicle H resulting from the tests referred to in point 2.2 corrected for the REESS charge balance (RCB) following the procedure set out in Appendix 2 to Sub-Annex 6 to Annex XXI to Regulation (EU) 2017/1151; Correction for the RCB shall be applied in cases when RCB is negative (corresponding to REESS discharging) and positive (corresponding to REESS charging) and also in the cases when the correction criterion c specified in Table A6. App 2/2 in that Appendix is less than the applicable tolerance according to that Table;

RCB_corr,H

is the CO₂ correction for RCB of the WLTP test for vehicle H selected in accordance with point 2.2 for the purpose of defining the input data, gCO₂/km, calculated following the procedure set out in Appendix 2 to Sub-Annex 6 to Annex XXI to Regulation (EU) 2017/1151 with RCB negative (corresponding to REESS discharging) and positive (corresponding to REESS charging);

DE_c,H

is the difference between the WLTP test result referred to in point (a) and the NEDC test result referred to in point (b) for vehicle H;

K_i, _H

is the value determined in accordance with appendix 1 to Sub-Annex 6 to Annex XXI to Regulation (EU) 2017/1151 for vehicle H.

3.1.3. NEDC CO₂ reference value for vehicle L

Where applicable, the following simulations shall be performed using the correlation tool and the relevant input data as recorded in the matrix referred to in point 2.4:

(a)

a WLTP test of vehicle L;

(b)

an NEDC test of vehicle L.

The NEDC CO₂ reference value for vehicle L shall be determined as follows:

Where:

CO _2,L

is the NEDC CO₂ reference value for vehicle L;

WLTP_ACGcorr,L

is the average of the WLTP CO₂ values resulting from the vehicle L tests referred to in point 2.2 corrected for the REESS charge balance (RCB) following the procedure set out in Appendix 2 to Sub-Annex 6 to Annex XXI to Regulation (EU) 2017/1151; Correction for the RCB shall be applied in cases when RCB is negative (corresponding to REESS discharging) and positive (corresponding to REESS charging) and also in the cases when the correction criterion c specified in Table A6. App 2/2 in that Appendix is less than the applicable tolerance according to that Table;

RCB_corr,L

is the CO₂ correction for RCB of the WLTP test of vehicle L selected in accordance with point 2.2 for the purpose of defining the input data, gCO₂/km, calculated following the procedure set out in Appendix 2 to Sub-Annex 6 to Annex XXI to Regulation (EU) 2017/1151 with RCB negative (corresponding to REESS discharging) and positive (corresponding to REESS charging);

DE_c,L

is the difference between the WLTP test result referred to in point (a) and the NEDC test result referred to in point (b) for vehicle L;

K_i,L

is the value determined in accordance with appendix 1 to Sub-Annex 6 to Annex XXI to Regulation (EU) 2017/1151 for vehicle L.

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.

3.3. Calculation of the NEDC phase-specific CO₂ values and fuel consumption values for vehicle H and L

The type-approval authority or, where applicable, the technical service shall determine the NEDC phase-specific values and the fuel consumption values for vehicle H and L in accordance with points 3.3.1 to 3.3.4.

3.3.1. Calculation of the NEDC phase-specific CO₂ values for vehicle H

Where:

p

is the NEDC phase ‘UDC’ or ‘EUDC’;

NEDC CO_2,p,H,c

is the NEDC CO₂ test result for the phase p referred to in point (b) of paragraph 3.1.2

NEDC CO_2,p,H

is the NEDC phase-specific value for the vehicle H of the applicable phase p, gCO₂/km

CO_2,AF,H

is the adjustment factor for the vehicle H calculated by the ratio between the NEDC CO₂ value determined in accordance with point 3.2 and the NEDC test result referred to in point (b) of paragraph 3.1.2

3.3.2. Calculation of the NEDC phase-specific CO₂ values for vehicle L

The NEDC phase-specific values shall be calculated as follows:

Where:

p

is the NEDC phase ‘UDC’ or ‘EUDC’;

NEDC CO_2,p,L,c

is the NEDC CO₂ test result for the phase p determined in accordance with point (b) of paragraph 3.1.3;

NEDC CO_2,p,L

is the NEDC phase-specific value for the vehicle L of the applicable phase p, gCO₂/km;

CO_2,AF,L

is the adjustment factor for the vehicle L calculated by the ratio between the NEDC CO₂ value determined in accordance with point 3.2 and the NEDC test result referred to in point (b) of paragraph 3.1.3.

3.3.3. Calculation of the NEDC fuel consumption for vehicle H

3.3.3.1. Calculation of the NEDC fuel consumption (combined)

The NEDC fuel consumption (combined) for vehicle H shall be calculated as follows:

Where:

NEDC FC_H,c

is the NEDC fuel consumption (combined) test result determined in accordance with Annex XII to Regulation (EC) No 692/2008 using the CO₂ emissions determined in accordance with point (b) of paragraph 3.1.2 or a physical measurement result as referred to in point 3.2.2; the emissions of other pollutants relevant to the fuel consumption calculation (hydrocarbons, carbon monoxide) shall be considered equal to 0 (zero) g/km;

NEDC FC_H

is the NEDC fuel consumption (combined) for the vehicle H, l/100km;

CO_2,AF,H

is the adjustment factor for the vehicle H calculated by the ratio between the NEDC CO₂ value determined in accordance with point 3.2 and the NEDC test result referred to in point (b) of paragraph 3.1.2.

3.3.3.2. Calculation of the NEDC phase-specific fuel consumption for vehicle H

The NEDC phase-specific fuel consumption for vehicle H shall be calculated as follows:

Where:

p

is the NEDC phase ‘UDC’ or ‘EUDC’;

NEDC FC_p,H,c

is the NEDC fuel consumption for the phase p determined in accordance with Annex XII to Regulation (EC) No 692/2008 using the CO₂ emissions determined in accordance with point (b) of paragraph 3.1.2 or a physical measurement result as referred to in point 3.2.2; the emissions of other pollutants relevant to the fuel consumption calculation (hydrocarbons, carbon monoxide) shall be considered equal to 0 (zero) g/km;

NEDC FC_p,H

is the NEDC phase-specific fuel consumption for the vehicle H of the applicable phase p, l/100km;

CO_2,AF,H

is the adjustment factor for the vehicle H calculated by the ratio between the NEDC CO₂ value determined in accordance with point 3.2 and the NEDC test result referred to in point (b) of paragraph 3.1.2.

3.3.4. Calculation of the NEDC fuel consumption for vehicle L

3.3.4.1. Calculation of the NEDC fuel consumption (combined) for vehicle L

The NEDC combined fuel consumption for vehicle L shall be calculated as follows:

Where:

NEDC FC_L,c

is the NEDC fuel consumption (combined) test result determined in accordance with Annex XII to Regulation (EC) No 692/2008 using the CO₂ emissions determined in accordance with point (b) of paragraph 3.1.3 or a physical measurement result as referred to in point 3.2.2; the emissions of other pollutants relevant to the fuel consumption calculation (hydrocarbons, carbon monoxide) shall be considered equal to 0 (zero) g/km;

NEDC FC_L

is the NEDC fuel consumption (combined) for the vehicle L, l/100km;

CO_2,AF,L

is the adjustment factor for the vehicle L calculated by the ratio between the NEDC CO₂ value determined in accordance with point 3.2 and the NEDC test result referred to in point (b) of paragraph 3.1.3;

3.3.4.2. Calculation of the NEDC phase-specific fuel consumption for vehicle L

The NEDC phase-specific fuel consumption for vehicle L shall be calculated as follows:

Where:

p

is the NEDC phase ‘UDC’ or ‘EUDC’;

NEDC FC_p,L,c

is the NEDC fuel consumption test result for the phase p determined in accordance with Annex XII to Regulation (EC) No 692/2008 using the CO₂ emissions determined in accordance with point (b) of paragraph 3.1.2 or a physical measurement result as referred to in point 3.2.2; the emissions of other pollutants relevant to the fuel consumption calculation (hydrocarbons, carbon monoxide) shall be considered equal to 0 (zero) g/km;

NEDC FC_p,L

is the NEDC phase-specific fuel consumption for the vehicle L of the applicable phase p, l/100km;

CO_2,AF,L

is the adjustment factor for the vehicle L calculated by the ratio between the NEDC CO₂ value determined in accordance with point 3.2 and the NEDC test result referred to in point (b) of paragraph 3.1.3.