Division 6: Error in the CO2 savings due to the standard deviation (propagation law) - Commission Implementing Decision of 27 June 2013 on the approval of the Valeo Efficient Generation Alternator as an innovative technology for reducing CO2 emissions from passenger cars pursuant to Regulation (EC) No 443/2009 of the European Parliament and of the Council (Text with EEA relevance) (2013/341/EU) (repealed)

The standard deviation of the efficiency value of the alternator (Δη_Α), leads to an error in the CO₂ savings. This error is to be calculated by means of the following formula^f1:

Formula (5)

{ΔCO}_{2} = (P_{m - RW} - P_{m - TA}) \times (1 ∕ η_{Α - {EI}^{2}}) \times {Δη}_{Α} \times (V_{Pe} \times {CF}_{p} ∕ v)

Where:

ΔCO₂

error in CO₂ savings (g CO₂/km);

P_RW

750 W;

P_TA

350 W;

η_Α–EI

Efficiency of the high efficient alternator;

Δη_Α

Standard deviation of the efficiency of the alternator (result of equation in Formula (4);

V_Pe

Willans’ factors (l/kWh);

CF

Conversion factors (g CO₂/l);

v

mean driving speed of the NEDC (km/h)

Division 6 Error in the CO2 savings due to the standard deviation (propagation law)

Annotations

Footnotes