
Article 1 

1. The efficient exterior lighting with the use of 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 with the use of light emitting diodes (LED) 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 Decision shall be ‘10’.
Article 2 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Done at Brussels, 9 February 2015.
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 with the use of 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 UN/ECE Regulation 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 figure 1. The following equipment is to be used:


— Two Digital Multi Meters, one for measuring the DC-current, and the other for measuring the DC-voltage.
— A power supply unit.

In total 5 measurements of the current should be done at the voltage of 12,8 V for the low and high beam headlamp and the front position, and 10,7 V for the licence plate.

The exact installed voltages and the measured current is 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 g CO2/km is met:

Step 1Calculate the power savings;Step 2Calculate the CO2 savings;Step 3Calculate the error in the CO2 savings;Step 4Verify the threshold value.
 4.1. 
For each of the 5 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 5 values. Each value must be expressed in 4 decimals. Then the mean value of the used power will be calculated, which is the sum of the 5 values for the power divided by 5.

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

Formula (1)

ΔP = Pbaseline – Peco-innovation

Where:

ΔPPower savings in W;PbaselinePower of the baseline;Peco-innovationMean value of the used power of the eco-innovation in W.


Type of lighting Total electric power[W]
Low beam headlamp 137
High beam headlamp 150
Front position 12
License plate 12
 4.2. 
The total CO2 savings of the lighting package are to be calculated by Formulae (2) and (3).

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
These formulae present the total CO2 savings of the lighting package in gCO2/km.

The input data for the formulae (2) and (3) 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 2ma number of types of lightings 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/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
License plate 0,36
 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 %.

This is to be done by formula (4).

Formula (4):
σ x–=∑ni=1xi−x–2nn−1
Where:

σ x–Standard deviation of arithmetic mean [W];xiMeasurement value [W];x–Arithmetic mean [W];nNumber of measurements, which is 5.

In order to calculate the error in the CO2 savings for a petrol and diesel -fuelled vehicles, the propagation law, expressed in formula (5), is to be applied.

Formula (5):

Where:

ΔCCO2–Mean total error of the CO2 saving [gCO2/km]Sensitivity of calculated CO2 saving related to the type of lighting PjσPjError of the type of lighting Pj [W]ma number of types of lightings in the innovative technology package

Substituting formula (2) in formula (5) results in formula (6) for calculating the error in CO2 savings for petrol fuelled vehicles.

Formula (6):
ΔCCO2–=0,0273 gCO2∕kmW×∑j=1mUFj×σPj2
Substituting formula (3) in formula (5) results in formula (7) for calculating the error in CO2 savings for diesel fuelled vehicles.

Formula (7):
ΔCCO2–=0,0258 gCO2∕kmW×∑j=1mUFj×σPj2 4.4. 
In order to demonstrate that the 1,0 gCO2/km threshold is exceeded with a statistic relevance, the following formula (8) should be used.

Formula (8):
MT=1,0 gCO2∕km≤CCO2−ΔCCO2–
Where:

MTMinimum threshold [gCO2/km],CCO2Total CO2 saving [gCO2/km], which must be expressed in 4 decimals,ΔCCO2–Mean total error of the CO2 saving [gCO2/km], which must be expressed in 4 decimals.

Where the total CO2 emission savings of the innovative technology package, as a result of the calculation using Formula (8), 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.
