Document ID: chunk:federal_register_of_legislation:F2022C00213:front:0:p38
Version: federal_register_of_legislation:F2022C00213
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Character Range: 132012–134470

applied, as follows:

       FCnorm = (0.1212 / 0.538) · (cf) · [(0.825 · HC) + (0.429 · CO) + (0.273 · CO2)]

       The correction factor cf, which may be applied, is determined as follows:

        cf = 0.825 + 0.0693 · nactual

       where:

        nactual = the actual H/C ratio of the fuel used

      (c) for vehicles with a positive ignition engine fuelled with NG:

       Fcnorm = (0.1336 / 0.654) · [(0.749 · HC) + (0.429 · CO) + (0.273 · CO2)]

      (d) for vehicles with a compression ignition engine:

       FC = (0.1155 / D) · [(0.866 · HC) + (0.429 · CO) + (0.273 · CO2)]

       In these formulae:

                      FC = the fuel consumption in litre per 100 km (in the case of petrol, LPG or diesel) or in m3 per 100 km (in the case of natural gas)

        HC = the measured emission of hydrocarbons in g/km

        CO = the measured emission of carbon monoxide in g/km

        CO2 = the measured emission of carbon dioxide in g/km

        D = the density of the test fuel.

       In the case of gaseous fuels this is the density at 15 °C.

Annex 7

METHOD OF MEASURING THE ELECTRIC ENERGY CONSUMPTION
OF VEHICLES POWERED BY AN ELECTRIC POWER TRAIN ONLY

     1. TEST SEQUENCE

     1.1. Composition

      The test sequence is composed of two parts (see figure 1):

      (a) an urban cycle made of four elementary urban cycles;
      (b) an extra-urban cycle.

      In case of a manual gear box with several gears, the operator changes the gear according to the manufacturer's specifications.

      If the vehicle has several driving modes, which may be selected by the driver, the operator shall select the one to best match the target curve.

     Figure 1
     Test sequence - M1 and N1 categories of vehicles

     1.2. Urban cycle

      The urban cycle is composed of four elementary cycles of 195 seconds each and lasts 780 seconds in total.

      Description of the elementary urban cycle is given in figure 2 and table 1.

Figure 2
Elementary urban cycle (195 seconds)

Table 1
Elementary urban cycle

Operation  Operation                                                  ELEMENTARY URBAN CYCLE  Operation     Mode    Total
N         type                                                       Mode                    Acceleration  Speed   duration  duration  time
                                                                      N                      (m/s2)        (km/h)  (s)       (s)       (s)