# Commission Implementing Decision (EU) 2019/314 of 21 February 2019 on the approval of the technology used in SEG Automotive Germany GmbH High efficient 48V motor generator (BRM) plus 48V/12V DC/DC converter for use in conventional combustion engine and certain hybrid powered passenger cars 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), Division 6: STATISTICAL SIGNIFICANCE (for both methods)

Extent: E+W+S+N.I.

It shall be demonstrated for each type, variant and version of a vehicle fitted with the efficient 48V motor generator that the uncertainty of the CO2 savings calculated in accordance with Formula 7 or Formula 17 is not greater than the difference between the total CO2 savings and the minimum savings threshold specified in Article 9(1) of Implementing Regulation (EU) No 725/2011 and Commission Implementing Regulation (EU) No 427/2014 (see Formula 21).
Formula 21
MT < C CO 2 − s C CO 2 − ΔCO 2 m
Where:
MT minimum threshold [g CO2/km]
C CO 2 total CO2 saving [g CO2/km]
s C CO 2 standard deviation of the total CO2 saving [gCO2/km]
ΔCO 2 m CO2 correction coefficient due to the positive mass difference between the efficient 48V motor generator plus 48V/12V DC-DC converter and the baseline alternator. For ΔCO 2 m the data in Table 4 is to be used.
Table 4
CO2 correction coefficient due to the extra mass
Type of fuel
CO2 correction coefficient due to the positive mass difference ( ΔCO 2 m )[g CO2/km]
Petrol
0,0277 · Δm
Diesel
0,0383 · Δm
Δm (in Table 4) is the extra mass due to the installation of the 48V motor generator and the 48V/12V DC-DC converter. It is the positive difference between the mass of the 48V motor generator plus the 48V/12V DC-DC converter and the mass of baseline alternator. The mass of the baseline alternator is 7 kg. The extra mass is to be verified and confirmed in the verification report to be submitted to the type approval authority together with the application for certifications.

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Source: https://www.legislation.gov.uk/eudn/2019/314/annex/division/6 (the official version)
Page: https://openlegislation.uk/eu-decision-2019-314/annex/division-6
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.