Division Symbols

United Kingdom

	—	CO2 savings [g CO2/km]
CO2	—	Carbon dioxide
CF	—	Conversion factor as defined in Table 3
H	—	Frequency as defined in Table 1
I	—	Current intensity at which the measurement shall be carried out [A]
M	—	Number of measurements of the sample
M	—	Torque [Nm]
N	—	Rotational frequency [min-1] as defined in Table 1
P	—	Power [W]
	—	Standard deviation of the efficiency of the generator function of the 12 V motor-generator (hereinafter ‘the motor-generator efficiency’) [%]
	—	Standard deviation of the motor-generator efficiency mean [%]
	—	Standard deviation of the total CO2 savings [g CO2/km]
U	—	Test voltage at which the measurement shall be carried out [V]
v	—	Mean driving speed of the New European Driving Cycle (NEDC) [km/h]
Vpe	—	Consumption of effective power as defined in Table 2
	—	Sensitivity of calculated CO2 savings related to the motor-generator efficiency
Δ	—	Difference
	—	Baseline alternator efficiency [%]
	—	Motor-generator efficiency [%]
	—	Mean of the motor-generator efficiency at operating point i [%]