UN R154 — Supplement 2 to the 01 series of amendments

The table of assigned additive deterioration factors now gives values by vehicle category, class and mass, in columns G, D and O. If the limit value is different from Table 1B, a new equation gives the assigned additive deterioration factor. A new footnote on the PN limits accepts compliance measured to the “SPN10” requirements of Global Technical Regulation No. 15 Amendment 6. New paragraph 12.2. gives transitional provisions for Supplement 02 to the 01 series. Contracting Parties must accept approvals to previous supplements of the 01 series. They can still extend existing approvals granted before Supplement 02 according to Supplement 01, when no new type approval testing is necessary.

New paragraph 2.3.1.3. accepts twin roller dynamometers with 4WD configuration if two conditions are met. The distance between the front and rear roller sets must match the declared wheelbase of the vehicle as closely as possible. The distance setting used for dyno load setting must be the same for vehicle testing. Calibration of the PNC must now follow ISO 27891:2015, and the calibration factor must be between 0.9 and 1.1. New paragraph 4.3.1.3.3.1. gives an equation for the solid particle penetration. The instrument manufacturer must prove this penetration by testing one unit for each PN-system model.

New paragraph 3.2.37. defines “reference mass”. The “coasting” definition (3.2.36.) now excludes propulsion energy to the wheels, recuperation energy from the wheels and friction braking. Paragraph 5.11.1. on the device for fuel and electric energy consumption data now lists category N2 together with M1 and N1. New paragraph 6.1.10. requires good engineering judgement when the data input to a formula justifiably leads to division by zero. New paragraph 6.3.11. sets a KCO2 correction factor family for OVC-HEVs and NOVC-HEVs. Two or more interpolation families can merge into one KCO2 correction factor family if they meet at least one of criteria (a) to (e).

Once per 12-month period, a vehicle from the CoP family now takes the Annex C3 test or at least the three Appendix 4 tests. A further sample under paragraph 8.3.2. can also take the Annex C3 Type 4 test instead of the Appendix 4 tests. Appendix 1 now takes the criteria emissions test results from step 5 of Table A7/1, Table A8/5 or Table A8/8, as applicable. Table App1/1 now shows the procedure for the final CoP test results. Appendix 8 to Annex B8 now determines reference values of electric energy consumption for verifying the CoP of PEVs and OVC-HEVs. At the request of the manufacturer and with approval of the responsible authority, the run-in factor can apply to other CoP families.

Annex B1 downscaling can now use the maximum rated engine power for a NOVC-HEV when the electric machine does not impact the maximum vehicle power. This needs a request of the manufacturer and approval of the responsible authority. Annex B3 now requires the reference fuel of Table A3/18 for ICE vehicles fuelled by hydrogen. Annex B6 now requires that openings in the exhaust system designed to remove condensate are sealed before the test, if applicable. During the Type 1 test, the testing lab must record and save engine and vehicle fuel rates at 1 Hz. In Annex B7, vehicles with a manual transmission can exclude upward gear shifts, for a maximum of 2 seconds, from the drive trace indices calculation.

For OVC-HEVs and NOVC-HEVs, paragraph 3.1.1.5. now covers particle number, as well as gaseous emission compounds, for each individual test phase. For phases where no combustion engine operates, the phase analysis can be omitted and the emission results set to zero. Paragraph 3.1.1.6. now allows zero particulate matter results for cycles where no combustion engine operates. The EAER equations now have separate text for the 4-phase and the 3-phase WLTP test. The text deletes paragraph 4.5.8., which allowed the manufacturer to decrease the individual EAER value.

The information document in Annex A1 now asks for the manufacturer’s name and address, the number of seating positions and the KCO2 correction factor family. Where relevant, Annexes Part A now give separate reporting fields for the results after 3 phases and after 4 phases. The test report records openings in the exhaust system designed to remove condensate. In Annex C3, the test now requires that these condensate openings are sealed before the test. Annex C5 now says that testing of OVC-HEVs is carried out under charge-sustaining conditions. Annex C5 adds the standards ISO 13400-2, ISO 13400-4, SAE J 1979-2 and SAE J 1979-3, and deletes ISO 14229:2013.