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Division 4.1 General methodology

United Kingdom

Original text. Later amendments are not shown.

The uncertainty of the CO2 savings () [W] shall be calculated in accordance with Formula 5.

Formula 5

where,

m

  • is the number of exterior LED lights in the combination tested.

  • is the statistical margin of the power consumption of each i-th LED light fitted in the eco-innovative vehicle which shall be calculated in accordance with Formula 6.

    • Formula 6

    In case of a low beam AFS the statistical margin of the power consumption () [W] shall instead be calculated in accordance with Formulas 7 and 8.

    Formula 7

    Formula 8

    where,

    n

  • is the number of power consumption measurements, which is at least 5 as indicated in section 2.2.1

    • i

  • corresponds to each vehicle light

    • j

  • refers to an individual measurement of power consumption

  • is the average of the n values of Pk

    • K

  • is the number of classes associated with the low beam AFS.