# 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 2.2


The correction coefficients shall be determined from a set of charge-sustaining Type 1 tests according to paragraph 3. of this Appendix. The number of tests performed by the manufacturer shall be equal to or greater than five.
The manufacturer may request to set the state of charge of the REESS prior to the test according to the manufacturer’s recommendation and as described in paragraph 3. of this Appendix. This practice shall only be used for the purpose of achieving a charge-sustaining Type 1 test with opposite sign of the ΔEREESS,CS and with approval of the approval authority.
The set of measurements shall fulfil the following criteria:
(a)The set shall contain at least one test with ΔEREESS,CS,n ≤ 0 and at least one test with ΔEREESS,CS,n > 0. ΔEREESS,CS,n is the sum of electric energy changes of all REESSs of test n calculated in accordance with paragraph 4.3. of this Sub-Annex.
(b)The difference in MCO2,CS between the test with the highest negative electric energy change and the test with the highest positive electric energy change shall be greater than or equal to 5 g/km. This criterion shall not be applied for the determination of Kfuel,FCHV.
In the case of the determination of KCO2, the required number of tests may be reduced to three tests if all of the following criteria are fulfilled in addition to (a) and (b):
(c)the difference in MCO2,CS between any two adjacent measurements, related to the electric energy change during the test, shall be less than or equal to 10 g/km.
(d)in addition to (b), the test with the highest negative electric energy change and the test with the highest positive electric energy change shall not be within the region that is defined by:
−0,01≤ΔEREESSEfuel≤+ 0,01,
where:
Efuelis the energy content of the consumed fuel calculated according to paragraph 1.2. of this Appendix, Wh.
(e)The difference in MCO2,CS between the test with the highest negative electric energy change and the mid-point, and the difference in MCO2,CS between the mid-point and the test with the highest positive electric energy change shall be similar. The mid-point should preferably be within the range defined by (d). If this requirement is not feasible, the approval authority shall decide if a retest is necessary.
The correction coefficients determined by the manufacturer shall be reviewed and approved by the approval authority prior to its application.
If the set of at least five tests does not fulfil criterion (a) or criterion (b) or both, the manufacturer shall provide evidence to the approval authority as to why the vehicle is not capable of meeting either or both criteria. If the approval authority is not satisfied with the evidence, it may require additional tests to be performed. If the criteria after additional tests are still not fulfilled, the approval authority shall determine a conservative correction coefficient, based on the measurements.

---
Source: https://www.legislation.gov.uk/eur/2017/1151/annex/Sub/8n3/division/division/2./division/2.2. (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-1151/annex-Sub/8n3/division/division-2./division-2.2.
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.