COMMISSION IMPLEMENTING DECISION (EU) 2020/1167
of 6 August 2020
on the approval of the technology used in a 48 Volt efficient motor-generator combined with a 48 Volt/12 Volt DC/DC converter for use in conventional combustion engine and certain hybrid electric passenger cars and light commercial vehicles as an innovative technology pursuant to Regulation (EU) 2019/631 of the European Parliament and of the Council)
(Text with EEA relevance)
Article 1
Innovative technology
Article 2
Application for certification of CO
2
savings
Article 3
Certification of CO
2
savings
Article 4
Eco-innovation code
Article 5
Entry into force
ANNEX
Methodology to determine the CO
2
savings of the technology used in a 48 Volt efficient motor-generator combined with a 48 Volt/12 Volt DC/DC converter for conventional combustion engine and certain hybrid electric passenger cars and light commercial vehicles
1. INTRODUCTION
2. DETERMINATION OF THE EFFICIENCIES
2.1.
48V motor-generator efficiency
Operating point i |
Holding time [s] |
Rotational frequency [Bild bitte in Originalquelle ansehen] |
Frequency of operating points [Bild bitte in Originalquelle ansehen] |
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 |
2.2.
48V/12V DC/DC converter efficiency
2.3.
Combined efficiency
3. CALCULATION OF THE CO
2
SAVINGS
3.1.
Saved mechanical power
3.2.
Calculation of the CO
2
savings
Type of engine |
Consumption of effective power [Bild bitte in Originalquelle ansehen] [Bild bitte in Originalquelle ansehen] |
Petrol-fuelled other than turbo-charged |
0,264 |
Turbo-charged petrol-fuelled |
0,280 |
Diesel-fuelled |
0,220 |
Type of fuel |
Conversion factor (CF) [Bild bitte in Originalquelle ansehen] |
Petrol |
2 330 |
Diesel |
2 640 |
3.3.
Calculation of the uncertainty of the CO
2
savings
3.4.
Rounding
3.5.
Check against the minimum CO
2
savings threshold
Type of fuel |
CO2 correction [Bild bitte in Originalquelle ansehen] [Bild bitte in Originalquelle ansehen] |
Petrol |
0,0277 Δm |
Diesel |
0,0383 Δm |