Document ID: chunk:federal_register_of_legislation:F2011C00805:reg:11:p30
Version: federal_register_of_legislation:F2011C00805
Segment Type: reg
Provision Reference: reg 11 (pt 30/45)
Character Range: 501905–504941

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 4.2.11.2.1.10.1. to 4.2.11.2.1.10.4. or 4.2.11.2.5.4.1. to 4.2.11.2.5.4.4. as applicable.

         3.2. Measurement of emissions 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 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 Type 1 test described in Annex 4 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 emission values during regeneration (Mri) shall be calculated according to Annex 4, paragraph 8.  The number of operating cycles (d) measured for complete regeneration shall be recorded.

         3.3. Calculation of the combined exhaust emissions

               n  2 ;

           where for each pollutant (i) considered:

               M'sij = mass emissions of pollutant (i) in g/km over one Type I operating cycle (or equivalent engine test bench cycle) without regeneration
               M'rij = mass emissions of pollutant (i) in g/km over one Type I operating cycle (or equivalent engine test bench cycle) during regeneration.  (when n>1, the first Type I test