Document ID: chunk:federal_register_of_legislation:F2024L00446:reg:32:p1
Version: federal_register_of_legislation:F2024L00446
Segment Type: reg
Provision Reference: reg 32 (pt 1/2)
Character Range: 188065–191455

32               0.03876                       0.03876

              Table A2/2 shows values of the pass (An) and fail (Bn) decision numbers against current sample number.
              The test statistic is the ratio used to determine whether the series has passed or failed as follows:

              For mo  n  m:

              (i) Pass the series if

              (ii) Fail the series if

              (iii) Take another measurement if

              Remarks:

              The following recursive formulae are useful for computing successive values of the test statistic:

              3. CO2 emissions, fuel efficiency and electric energy consumption

              3.1. Statistical procedure

               For Level 1A:

               For the total number of tests (N) and the measurement results of the tested vehicles, x1, x2, … xN, the average Xtests and the standard deviation s shall be determined:

               and

               For Level 1B:

               For the total number of tests (N) and the measurement results of the tested vehicles, x1, x2, … xN, the average Xtests and the standard deviation σ shall be determined:

              and

              3.2. Statistical evaluation

               For Level 1A:

               For the evaluation of CO2 emissions the normalised values shall be calculated as follows:

               where:

               CO2 test-i  is the CO2 emission measured for the individual vehicle i

               CO2 declared-i is the declared CO2 value for the individual vehicle i

               For the evaluation of electric energy consumption EC the normalised values shall be calculated as follows:

               where:

                      ECtest-i is the electric energy consumption measured for individual vehicle i. In the case that the complete charge-depleting Type 1 test has been applied, ECtest-i shall be determined according to paragraph 5.3.1.1. of Appendix 1. In the case that only the first cycle is tested for verification of CoP, ECtest-i shall be determined according to paragraph 5.3.1.2. of Appendix 1.

                      ECDC, COP-i is the declared electric energy consumption for the individual vehicle i, according to Appendix 8 to Annex B8. In the case that the complete charge-depleting Type 1 test has been applied, ECDC,COP,i shall be determined according to paragraph 5.3.2.1. of Appendix 1. In the case that only the first cycle is tested for verification of CoP, ECCOP,i shall be determined according to paragraph 5.3.2.2 of Appendix 1.

              The normalised xi values shall be used to determine the parameters Xtests and s according to paragraph 3.1.

              For Level 1B:

              For the evaluation of fuel efficiency the normalised values shall be calculated as follows:

               where:

                     FE test-i  is the fuel efficiency measured for individual vehicle i

                     FE declared-i is the declared fuel efficiency value for the individual vehicle

               For the evaluation of electric energy consumption EC the normalised values shall be calculated as follows:

               where:

                      ECtest-i is the electric energy consumption measured for individual vehicle i. In the case that the complete charge-depleting Type 1 test has been applied, ECtest-i shall be determined according