# 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 3.2: Calculation of exhaust and CO2 emissions, and fuel consumption of multiple periodically regenerating systems


The following shall be calculated for one Type 1 operation cycle for criteria emissions and for CO2 emissions. The CO2 emissions used for that calculation shall be from the result of step 3 described in Table A7/1 of Sub-Annex 7.
Msik=∑nkj=1M′sik,jnk for nj≥ 1
Mrik=∑dkj=1M′rik,jdk for d ≥ 1
Msi=∑xk=1Msik×Dk∑xk=1Dk
Mri=∑xk=1Mrik×dk∑xk=1dk
Mpi=Msi×∑xk=1Dk+Mri×∑xk=1dk∑xk=1Dk+dk
Mpi=∑xk=1Msik×Dk+Mrik×dk∑xk=1Dk+dk
Ki factorKi=MpiMsi
Ki offsetKi = Mpi – Msi
where:
Msiare the mean mass emissions of all events k of compound i without regeneration, g/km;
Mriare the mean mass emissions of all events k of compound i during regeneration, g/km;
Mpiare the mean mass emission of all events k of compound i, g/km;
Msikare the mean mass emissions of event k of compound i without regeneration, g/km;
Mrikare the mean mass emissions of event k of compound i during regeneration, g/km;
M′sik,jare the mass emissions of event k of compound i in g/km without regeneration measured at point j where 1 ≤ j ≤ nk, g/km;
M′rik,jare the mass emissions of event k of compound i during regeneration (when j > 1, the first Type 1 test is run cold, and subsequent cycles are hot) measured at test cycle j where 1 ≤ j ≤ dk, g/km;
nkare the number of complete test cycles of event k, between two cycles where regenerative phases occur, during which emissions measurements (Type 1 WLTCs or equivalent engine test bench cycles) are made, ≥ 2;
dkis the number of complete applicable test cycles of event k required for complete regeneration;
Dkis the number of complete applicable test cycles of event k between two cycles where regenerative phases occur;
xis the number of complete regeneration events.
The calculation of Mpi is shown graphically in Figure A6.App1/2.
The calculation of Ki for multiple periodically regenerating systems is only possible after a certain number of regeneration events for each system.
After performing the complete procedure (A to B, see Figure A6.App1/2), the original starting condition A should be reached again.

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Source: https://www.legislation.gov.uk/eur/2017/1151/annex/Sub/6/1/division/division/3./division/3.2. (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-1151/annex-Sub/6/1/division/division-3./division-3.2.
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.