Document ID: chunk:federal_register_of_legislation:F2022C00213:reg:120:p23
Version: federal_register_of_legislation:F2022C00213
Segment Type: reg
Provision Reference: reg 120 (pt 23/56)
Character Range: 217793–220809

loading) and one as close as possible prior to a regeneration phase.  All emissions measurements and calculations shall be carried out according to Annex 6.

       3.1.2. The loading process and Ki determination shall be made during the Type I operating cycle, on a chassis dynamometer or on an engine test bench using an equivalent test cycle.  These cycles may be run continuously (i.e. without the need to switch the engine off between cycles).  After any number of completed cycles, the vehicle may be removed from the chassis dynamometer, and the test continued at a later time.

       3.1.3. The number of cycles (D) between two cycles where regeneration phases occur, the number of cycles over which emissions measurements are made (n), and each emissions measurement (M'sij) shall be reported in Annex 1, items 4.1.11.2.1.10.1. to 4.1.11.2.1.10.4. or 4.1.11.2.5.4.1. to 4.1.11.2.5.4.4. as applicable.

       3.2. Measurement of carbon dioxide emission and fuel consumption during regeneration

       3.2.1. Preparation of the vehicle, if required, for the emissions test during a regeneration phase, may be completed using the preparation cycles in paragraph 5.3. of Annex 4 of Regulation No. 83 or equivalent engine test bench cycles, depending on the loading procedure chosen in paragraph 3.1.2. above.

       3.2.2. The test and vehicle conditions for the test described in Annex 6 apply before the first valid emission test is carried out.
       3.2.3. Regeneration must not occur during the preparation of the vehicle.  This may be ensured by one of the following methods:

       3.2.3.1. A "dummy" regenerating system or partial system may be fitted for the pre-conditioning cycles.

       3.2.3.2. Any other method agreed between the manufacturer and the type approval authority.

       3.2.4.                    A cold-start exhaust emission test including a regeneration process shall be performed according to the Type I operating cycle, or equivalent engine test bench cycle.  If the emissions tests between two cycles where regeneration phases occur are carried out on an engine test bench, the emissions test including a regeneration phase shall also be carried out on an engine test bench.

       3.2.5. If the regeneration process requires more than one operating cycle, subsequent test cycle(s) shall be driven immediately, without switching the engine off, until complete regeneration has been achieved (each cycle shall be completed).  The time necessary to set up a new test should be as short as possible (e.g. particular matter filter change).  The engine must be switched off during this period.

       3.2.6. The carbon dioxide emission and fuel consumption values during regeneration (Mri) shall be calculated according to Annex 6.  The number of operating cycles (d) measured for complete regeneration shall be recorded.

       3.3. Calculation of the combined carbon dioxide emission and fuel consumption

        n  2 ;

        where for each carbon dioxide emission