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Division 3.2 Calculation of the CO2 savings

United Kingdom

Original text. Later amendments are not shown.

The CO2 savings of the 48V motor-generator combined with the 48V/12V DC/DC converter shall be calculated in accordance with Formula 8.

Formula 8

where,

  • is the difference between the saved mechanical power under real-world conditions and the saved mechanical power under type-approval conditions, as determined in point 3.1

  • is the mean driving speed of the WLTP, which is 46,6 km/h

  • is the consumption of effective power as specified in Table 2 [l/kWh]

    • CF

  • is the conversion factor as set out in Table 3

    • Table 2

    Type of engineConsumption of effective power
    Petrol-fuelled other than turbo-charged0,264
    Turbo-charged petrol-fuelled0,280
    Diesel-fuelled0,220

    Table 3

    Type of fuelConversion factor (CF)
    Petrol2 330
    Diesel2 640