Document ID: chunk:federal_register_of_legislation:F2022C00213:reg:120:p28
Version: federal_register_of_legislation:F2022C00213
Segment Type: reg
Provision Reference: reg 120 (pt 28/30)
Character Range: 435338–438309

part (i) of the operating cycle without regeneration;
                     Mri = mean mass emissions of CO2 in g/km and fuel consumption in l/100 km over one part (i) of the operating cycle during regeneration;
                     Mpi = mean mass emission of CO2 in g/km and fuel consumption in l/100 km;
                     n = number of test points at which emissions measurements (Type I operating cycles or equivalent engine test bench cycles) are made between two cycles where regenerative phases occur,  2;
                     d = number of operating cycles required for regeneration;
                     D = number of operating cycles between two cycles where regenerative phases occur.
  For an illustration of measurement parameters see figure 10/1.
Figure 10/1

Parameters measured during carbon dioxide emission and fuel consumption test during and between cycles where regeneration occurs (schematic example, the emissions during 'D' may increase or decrease)

       3.3.1. Calculation of the regeneration factor K for carbon dioxide emission and fuel consumption (i) considered
       Ki = Mpi / Msi
        Msi, Mpi and Ki results shall be recorded in the test report delivered by the Technical Service.
        Ki may be determined following the completion of a single sequence.

       3.4. Calculation of the combined CO2-emission and fuel consumption of multiple regenerating systems

 (1)         nk ≥ 2

 (2)

 (3)

 (4)

 (5)

 (6)

 (7)

        where:
              Msi  = mass emission of all events k of CO2 in g/km and fuel  consumption in l/100 km (i) without regeneration;
            Mri  = mass emission of all events k of CO2 in g/km and fuel  consumption in               l/100 km (i) during regeneration;
            Mpi  = mass emission of all events k of CO2 in g/km and fuel  consumption in               l/100 km (i);
            Msik  = mass emission of event k of CO2 in g/km and fuel consumption in  l/100 km (i) without regeneration;
            Mrik  = mass emission of event k of CO2 in g/km and fuel consumption in  l/100 km (i) during regeneration;
            M'sik,j  = mass emission of event k of CO2 in g/km and fuel consumption in  l/100 km (i) over one Type I operating cycle (or equivalent engine               test bench cycle) without regeneration measured at point j;
             1 ≤ j ≤ n;
            M'rik,j  = mass emission of event k of CO2 in g/km and fuel consumption in  l/100 km (i) over one Type I operating cycle (or equivalent engine               test bench cycle) during regeneration (when j > 1, the first Type I               test is run cold, and subsequent cycles are hot) measured at               operating cycle j; 1 ≤ j ≤ d;
            nk  = number of test points of event k at which emissions measurements  (Type I operating cycles or equivalent engine test bench cycles)               are made between two cycles where regenerative phases occur, ;
            dk  =  number of