# Commission Regulation (EU) 2017/1151 of 1 June 2017 supplementing Regulation (EC) No 715/2007 of the European Parliament and of the Council on type-approval of motor vehicles with respect to emissions from light passenger and commercial vehicles (Euro 5 and Euro 6) and on access to vehicle repair and maintenance information, amending Directive 2007/46/EC of the European Parliament and of the Council, Commission Regulation (EC) No 692/2008 and Commission Regulation (EU) No 1230/2012 and repealing Commission Regulation (EC) No 692/2008 (Text with EEA relevance), Division 2.3.2: Determination of CO2 mass emission correction coefficient KCO2


For OVC-HEVs and NOVC-HEVs, the CO2 mass emission correction coefficient KCO2, determined by driving a set of charge-sustaining Type 1 tests, is defined by the following equation:
KCO2=∑nCSn= 1ECDC,CS,n− ECDC,CS,avg×MCO2,CS,nb,n− MCO2,CS,nb,avg∑nCSn= 1ECDC,CS,n− ECDC,CS,avg2where:
KCO2is the CO2 mass emission correction coefficient, (g/km)/(Wh/km);
ECDC,CS,nis the charge-sustaining electric energy consumption of test n based on the REESS depletion according to paragraph 2.3.1. of this Appendix, Wh/km;
ECDC,CS,avgis the arithmetic average of the charge-sustaining electric energy consumption of ncs tests based on the REESS depletion according to paragraph 2.3.1. of this Appendix, Wh/km;
MCO2,CS,nb,nis the charge-sustaining CO2 mass emission of test n, not corrected for the energy balance, calculated according Table A8/5, step no. 2, g/km;
MCO2,CS,nb,avgis the arithmetic average of the charge-sustaining CO2 mass emission of ncs tests based on the CO2 mass emission, not corrected for the energy balance, according to the equation below, g/km;
nis the index number of the considered test;
ncsis the total number of tests;
and:
MCO2,CS,nb,avg=1nCS×∑ncsn= 1 MCO2,CS,nb,nThe CO2 mass emission correction coefficient shall be rounded to four significant figures. The statistical significance of the CO2 mass emission correction coefficient shall be evaluated by the approval authority.

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Source: https://www.legislation.gov.uk/eur/2017/1151/annex/Sub/8n3/division/division/2./division/2.3./division/2.3.2. (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-1151/annex-Sub/8n3/division/division-2./division-2.3./division-2.3.2.
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.