Document ID: chunk:federal_register_of_legislation:F2024L00446:reg:16:p84
Version: federal_register_of_legislation:F2024L00446
Segment Type: reg
Provision Reference: reg 16 (pt 84/108)
Character Range: 1125387–1128946

For Level 1A and 1B  in the range of – 2.0 to + 4.0 per cent
RMSSE         For Level 1A         less than 1.3 km/h
For Level 1B  less than 0.8 km/h

2.6.8.3.1.4. Tolerance (4)
IWR           For Level 1A and 1B                                                    in the range of – 2.0 to + 4.0 per cent
RMSSE         For Level 1A                                                           less than 1.3 km/h
For Level 1B  manufacturer declared criteria but shall not be greater than 1.3 km/h

2.6.8.3.1.5. IWR and RMSSE drive trace indices shall be calculated in accordance with the requirements of paragraph 7. of Annex B7.
              2.6.8.3.2. The vehicle operation events and tolerances to be permitted for these events are as follows:

Vehicle operation             Warm-up cycle for dynamometer setting  Pre-conditioning  Performance parameter measurement test after preconditioning
Annex B6 and B8;              Tolerance (1)                          Tolerance (2)     Tolerance (2)* and
Type 1 Tests                                                                           Tolerance (3)
Annex C3:                     Tolerance (1)                          Tolerance (2)     Tolerance (2)*
Type 4 Test
Annex C5 Appendix1;           Tolerance (1)                          Tolerance (2)     Tolerance (2)*
OBD Demonstration Tests
COP Tests                     Tolerance (1)                          Tolerance (2)     Tolerance (2)* and
                                                                                       Tolerance (4)
Derive run-in factor for COP  Tolerance (1)                          Tolerance (2)     Tolerance (2)* and
                                                                                       Tolerance (3)

              *: the tolerance shall not be shown to the driver

              If the speed trace is outside the respective validity range for any of the tests, those individual tests shall be considered invalid.

    Figure A6/6
    Speed trace tolerances
              2.6.8.4. Alternator (DC/DC converter) current measurement

              During the Type 1 test, the alternator current shall be measured following the procedure and requirements set out in paragraph 2. of Appendix 2 to Annex B6. In the case of OVC-HEVs and NOVC-HEVs the DC/DC converter current shall be measured following the procedure and requirements set out in paragraph 2. of Appendix 3 to Annex B8. The measured data (1 Hz integrated frequency) for each test performed shall be made available by the approval authority if requested by a regional authority.

              2.6.8.5. OBFCM data recording and storing

              During the Type 1 test, the following parameters referred in Appendix 5 of this Regulation shall be recorded and saved (1 Hz sampling frequency) by the testing lab and shall be made available by the approval authority if requested by a regional authority:

                  (a) Engine fuel rate (grams/second);

                  (b) Engine fuel rate (litres/hour);

                  (c) Vehicle fuel rate (grams/second).

              2.7. Soaking
              2.7.1. After preconditioning and before testing, the test vehicle shall be kept in an area with ambient conditions as specified in paragraph 2.2.2.2. of this annex.
              2.7.2. The vehicle shall be soaked for a minimum of 6 hours and a maximum of 36 hours with the engine compartment cover opened or closed. If not excluded by specific provisions for a particular vehicle, cooling may be accomplished by forced cooling down to