Division 5: MEASUREMENTS AND DETERMINATION OF THE EFFICIENCY - Commission Implementing Decision (EU) 2016/265 of 25 February 2016 on the approval of the MELCO Motor Generator 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)

The efficiency of the motor generator shall be determined in accordance with ISO 8854:2012, with the exception of the elements specified in the present paragraph.

Evidence shall be provided to the type approval authority that the speed ranges of the motor generator are consistent with those described below. The measurements shall be conducted at different operating points i, as defined in Table 1. The motor generator current intensity is defined as half of the rated current for all operating points. For each speed the voltage and the output current of the motor generator are to be kept constant, the voltage at 14,3 V.

Table 1

Operating points

Operating pointi	Holding time[s]	Rotational frequencyn_i [min^{– 1}]	Frequencyh_i
1	1 200	1 800	0,25
2	1 200	3 000	0,40
3	600	6 000	0,25
4	300	10 000	0,10

The efficiency shall be calculated in accordance with Formula 1.

All efficiency measurements are to be performed consecutively at least five (5) times. The average of the measurements at each operating point ( $\bar{η_{{MG}_{i}}}$ ) has to be calculated.

The efficiency of the motor generator (η_MG) shall be calculated in accordance with Formula 2.

The motor generator leads to saved mechanical power under real-world conditions (ΔP_mRW) and type approval conditions (ΔP_mTA) as defined in Formula 3.

Where the saved mechanical power under real-world conditions (ΔP_mRW) is calculated in accordance with Formula 4 and the saved mechanical power under type-approval conditions (ΔP_mTA) in accordance with Formula 5.

Division 5 MEASUREMENTS AND DETERMINATION OF THE EFFICIENCY