
Article 1 

1. The efficient exterior lighting system including low-beam headlamp, high-beam headlamp, front position, front fog, rear fog, front turn signal, rear turn signal, licence plate and reversing lamp fitted with light emitting diodes (LEDs) intended for use in M1 vehicles is approved as an innovative technology within the meaning of Article 12 of Regulation (EC) No 443/2009.
2. The CO2 emissions reduction from the use of the efficient exterior lighting system including all, or an appropriate combination of the lighting functions referred to in paragraph 1 shall be determined using the methodology set out in the Annex.
3. The individual eco-innovation code to be entered into type-approval documentation to be used for the innovative technology approved through this Implementing Decision shall be ‘15’.
Article 2 
This Decision shall enter into force on the twentieth day following that of its publication in the Official Journal of the European Union.
Done at Brussels, 5 February 2016.
For the Commission
The President
Jean-Claude JUNCKER
ANNEX
1. 
In order to determine the CO2 emission reductions that can be attributed to the efficient exterior lighting system including all, or an appropriate combination of low-beam headlamps, high-beam headlamps, front position, front fog, rear fog, front turn signal, rear turn signal, licence plate and reversing lamps fitted with light emitting diodes (LED) in an M1 vehicle, it is necessary to establish the following:


((a)) the testing conditions;
((b)) the test procedure;
((c)) the formulae for calculating the CO2 savings;
((d)) the formulae for calculating the standard deviation;
((e)) the determination of the CO2 savings for the certification by type approval authorities.

2. 
The requirements of Regulation UN/ECE No 112 on uniform provisions concerning the approval of motor vehicle headlamps emitting an asymmetrical passing beam or a driving beam or both and equipped with filament lamps and/or light-emitting diode (LED) modules shall apply. For determining the power consumption, the reference is to be made to point 6.1.4 of Regulation No 112, and points 3.2.1 and 3.2.2 of Annex 10 to Regulation No 112.

3. 
Measurements are to be performed as shown in the figure. The following equipment is to be used:


— a power supply unit (i.e. variable voltage supplier),
— two digital multi-meters, one for measuring the DC current, and the other for measuring the DC voltage. In the figure the test set-up shows the possible case of the DC voltage meter integrated in the power supply unit.

In total, five measurements on the current should be done at 13,2 V for each type of lighting used in the vehicle (i.e. low-beam headlamp, high-beam headlamp, front position, front fog, rear fog, front turn signal, rear turn signal, licence plate and reversing lamps). LED module(s) operated by an electronic light source control gear, shall be measured as specified by the applicant.

As an alternative, other measurements on the current can be done at other additional voltages. The manufacturer must hand over verified documentation on the necessity to perform these other measurements to the type-approval authority. In total, five measurements on the current are to be done at each of these additional voltages.

The exact installed voltages and the measured current are to be recorded in four decimals.

4. 
The following steps are to be taken to determine the CO2 savings and to determine whether the threshold value of 1 gCO2/km is met:


 Step 1: Calculation of the power savings
 Step 2: Calculation of the CO2 savings
 Step 3: Calculation of the error in the CO2 savings
 Step 4: Verification of the threshold value.
 4.1 
For each of the five measurements the power which is used is to be calculated by multiplying the installed voltage with the measured current. When a stepper motor or electronic controller is used for the supply of the electricity to the LED lamps, then the electric load of this component part is to be excluded from the measurement. This will result in five values. Each value must be expressed in four decimals. Then the mean value of the used power will be calculated, which is the sum of the five values for the power divided by five.

The resulting power savings are to be calculated with the following formula:

Formula (1):

ΔP = Pbaseline – Peco-innovation

Where:

ΔPPower savings [W];PbaselinePower of the baseline, specified in Table 1 [W];Peco-innovationMean value of the used power of the eco-innovation [W].


Type of lighting Total electric power [W]
Low-beam headlamp 137
High-beam headlamp 150
Front position 12
Licence plate 12
Front fog lamp 124
Rear fog lamp 26
Front turn signal lamp 13
Rear turn signal lamp 13
Reversing lamp 52
 4.2 
The total CO2 savings of the innovative technology (efficient exterior lighting system) are to be calculated by formulae (2), (3) and (4).

For a petrol-fuelled vehicle:

Formula(2):
CCO2=∑j=1mΔPj×UFj×VPe−P∕ηA×CFP∕v
For a diesel-fuelled vehicle:

Formula(3)
CCO2=∑j=1mΔPj×UFj×VPe−D∕ηA×CFD∕v
For a petrol-fuelled vehicle with turbo charger:

Formula(4)
CCO2=∑j=1mΔPj×UFj×VPe−PT∕ηA×CFP∕v
These formulae present the total CO2 savings of the innovative technology (efficient exterior lighting system) in gCO2/km.

The input data for the formulae (2), (3) and (4) are:

ΔPjSaved electrical power in W of the type of lighting j, which is the result of step 1UFjUsage factor of the type of lighting j, specified in Table 2mNumber of types of lighting in the innovative technology packagevMean driving speed of the NEDC, which is 33,58 km/hVPe – PConsumption of effective power for petrol-fuelled vehicles, which is 0,264 l/kWhVPe – DConsumption of effective power for diesel-fuelled vehicles, which is 0,22 l/kWhVPe – PTConsumption of effective power for petrol-fuelled vehicles with turbo charger, which is 0,28 l/kWhηAEfficiency of the alternator, which is 0,67CFPConversion factor for petrol fuel, which is 2 330 gCO2/lCFDConversion factor for diesel fuel, which is 2 640 gCO2/l


Type of lighting Usage factor UF
Low-beam headlamp 0,33
High-beam headlamp 0,03
Front position 0,36
Licence plate 0,36
Front fog lamp 0,01
Rear fog lamp 0,01
Front turn signal lamp 0,15
Rear turn signal lamp 0,15
Reversing lamp 0,01
 4.3 
The statistical error in the CO2 savings is to be determined in two steps. In the first step the error value of the power is to be determined as a standard deviation being equivalent to a confidence interval of 68 % around the mean.

This is to be done by formula (5).

Formula (5):
sx–=∑i=1nxi−x–2nn−1
Where:

sx–Standard deviation of the sample mean [W]xiSample data [W]x–Mean of the sample data [W]nNumber of observations of the sample, which is five.

In order to calculate the error in the CO2 savings for petrol, petrol turbo and diesel-fuelled vehicles, the propagation law, expressed in formula (6), is to be applied.

Formula (6):
sCCO2=∑j=1mθCCO2θPjPj=P–j×sP–j2
Where:

sCCO2Standard deviation of the total CO2 saving [gCO2/km]θCCO2θPjPj=P–jSensitivity of calculated CO2 saving related to PjsP–jStandard deviation of P–j [W]mNumber of types of lighting in the innovative technology package

Substituting formula (2) in formula (6) results in formula (7) for calculating the error in CO2 savings for petrol-fuelled vehicles.

Formula (7)
sCCO2=0,0273 gCO2∕kmW×∑j=1mUFj×sP–j2
Substituting formula (3) in formula (6) results in formula (8) for calculating the error in CO2 savings for diesel-fuelled vehicles.

Formula(8):
sCCO2=0,0258 gCO2∕kmW×∑j=1mUFj×sP–j2
Substituting formula (4) in formula (6) results in formula (9) for calculating the error in CO2 savings for petrol-fuelled vehicles with turbo charger.

Formula (9):
sCCO2=0,0290 gCO2∕kmW×∑j=1mUFj×sP–j2 4.4 
In order to demonstrate that the 1,0 gCO2/km threshold is exceeded with statistical relevance, the following formula (10) should be used.

Formula 10:
MT=1,0 gCO2∕km≤CCO2−sCCO2
Where:

MTMinimum threshold [gCO2/km],CCO2Total CO2 saving [gCO2/km], which must be expressed in four decimals,sCCO2Standard deviation of the total CO2 saving [gCO2/km], which must be expressed in four decimals.

Where the total CO2 emission savings of the innovative technology (efficient exterior lighting system), as a result of the calculation using formula (10), are below the threshold specified in Article 9(1) of Implementing Regulation (EU) No 725/2011, the second subparagraph of Article 11(2) of that Regulation shall apply.
