Document ID: chunk:federal_register_of_legislation:F2024L00446:front:0:p30
Version: federal_register_of_legislation:F2024L00446
Segment Type: other
Provision Reference: 
Character Range: 90654–94084

consumption under WLTP conditions. At the request of the manufacturer and with the approval of the approval authority, electric energy converters between recharge-plug-in and traction REESS with lower recharge losses may be included in the family;

                  (d) The difference between the number of charge-depleting cycles from the beginning of the test up to and including the transition cycle shall not be more than one.

              6.3.2.3. Interpolation family for PEVs

              Only PEVs that are identical with respect to the following electric powertrain/transmission characteristics may be part of the same interpolation family:

                  (a) Type and number of electric machines: construction type (asynchronous/ synchronous, etc.), type of coolant (air, liquid) and any other characteristics having a non-negligible influence on electric energy consumption and range under WLTP conditions;

                  (b) Type of traction REESS (type of cell, capacity, nominal voltage, nominal power, type of coolant (air, liquid));

                  (c) Transmission type (e.g. manual, automatic, CVT) and transmission model (e.g. torque rating, number of gears, numbers of clutches, etc.);

                  (d) Number of powered axles;

                  (e) Type of electric energy converter between the electric machine and traction REESS, between the traction REESS and low voltage power supply and between the recharge-plug-in and traction REESS, and any other characteristics having a non-negligible influence on electric energy consumption and range under WLTP conditions. At the request of the manufacturer and with the approval of the approval authority, electric energy converters between recharge-plug-in and traction REESS with lower recharge losses may be included in the family;

                  (f) Operation strategy of all components influencing the electric energy consumption within the powertrain;

                  (g) n/v ratios (engine rotational speed divided by vehicle speed). This requirement shall be considered fulfilled if, for all transmission ratios concerned, the difference with respect to the n/v ratios of the most commonly installed transmission type and model is within 8 per cent.

              6.3.2.4. Interpolation family for OVC-FCHVs and NOVC-FCHVs

               Only OVC-FCHVs and NOVC-FCHVs that are identical with respect to the following electric powertrain/fuel cell/transmission characteristics may be part of the same interpolation family:

                  (a) Type and number of electric machines: construction type (asynchronous/ synchronous, etc.), type of coolant (air, liquid) and any other characteristics having a non-negligible influence on fuel consumption (or fuel efficiency) and electric energy consumption under WLTP conditions;

                  (b) Type of fuel cell (type of cell, nominal voltage, type of coolant (air, liquid)), and also other fuel cell subsystems or characteristics that have a non-negligible influence on fuel consumption (or fuel efficiency) under WLTP conditions;

                  (c) Type of traction REESS (model, capacity, nominal voltage, nominal power, type of coolant (air, liquid));

                  (d) Transmission type (e.g. manual, automatic, CVT) and transmission model (e.g. torque rating, number of gears, numbers of clutches, etc.);

                  (e) Number of powered axles;