Document ID: chunk:federal_register_of_legislation:F2024L00446:reg:16:p98
Version: federal_register_of_legislation:F2024L00446
Segment Type: reg
Provision Reference: reg 16 (pt 98/108)
Character Range: 1166399–1169498

for an Electric Range.

              1.2. In order to ensure statistical representativity, at the request of the manufacturer, all tests from which results are used in the calculations described in this Annex B6A can be repeated up to a maximum of 3 times and the arithmetic average of results used in the context of this Annex B6A. Where the tests have been performed only for the purpose of determining the FCF and without prejudice to paragraph 3.7.3. of this Annex B6A, the results of the additional tests shall not be taken into account for any other purposes.

              2. Ambient Temperature Correction Test (ATCT) Family

              2.1. Only vehicles which are identical with respect to all the following characteristics are permitted to be part of the same ATCT Family:

                  (a) Powertrain architecture (i.e. internal combustion, hybrid, fuel cell, or electric);

              (b) Combustion process (i.e. two stroke or four stroke);

              (c) Number and arrangement of cylinders;

              (d) Method of engine combustion (i.e. indirect or direct injection);

              (e) Type of cooling system (i.e. air, water, or oil);

              (f) Method of aspiration (i.e. naturally aspirated, or charged);

                  (g) Fuel for which the engine is designed (i.e. petrol, diesel, NG, LPG, etc.);

                  (h) Catalytic converter (i.e. three-way catalyst, lean NOx trap, SCR, lean NOx catalyst or other(s));

              (i) Whether or not a particulate trap is installed; and

              (j) Exhaust gas recirculation (with or without, cooled or non-cooled).

              In addition the vehicles shall be similar with respect to the following characteristics:

                  (k) The vehicles shall have a variation in engine cylinder capacity of no more than 30 per cent of the vehicle with the lowest capacity; and

                  (l) Engine compartment insulation shall be of a similar type regarding material, amount and location of the insulation. Manufacturers shall provide evidence (e.g. by CAD drawings) to the approval authority that for all vehicles in the family, the volume and weight of the insulation material which will be installed is greater than 90 per cent of that of the ATCT measured reference vehicle.

              Difference in insulation material and location may also be accepted to be part of a single ATCT family under the condition that the test vehicle can be demonstrated as being the worst case with regards to engine compartment insulation.

              If the manufacturer can demonstrate to the Type Approval Authority that it is ensured that the worst case concept is maintained (e.g. tested vehicle has no insulation), or if the ATCT is composed of a single Interpolation Family. the requirements to document the insulation materials may be waived.

              2.1.1.  If active heat storage devices are installed, only vehicles that meet the following requirements shall be considered to be part of the same ATCT Family:

                  (a) The heat capacity, defined