Document ID: chunk:federal_register_of_legislation:F2024C00356:reg:11:p1
Version: federal_register_of_legislation:F2024C00356
Segment Type: reg
Provision Reference: reg 11 (pt 1/7)
Character Range: 478522–481471

11     113

Figure 9/1
Driving schedule

              6.2. The durability test, or if the manufacturer has chosen, the modified durability test shall be conducted until the vehicle has covered a minimum of 160,000 km.
              6.3. Test equipment
              6.3.1. Chassis dynamometer
              6.3.1.1. When the durability test is performed on a chassis dynamometer, the dynamometer shall enable the cycle described in paragraph 6.1. to be carried out. In particular, it shall be equipped with systems simulating inertia and resistance to progress.
              6.3.1.2. The brake shall be adjusted in order to absorb the power exerted on the driving wheels at a steady speed of 80 km/h. Methods to be applied to determine this power and to adjust the brake are the same as those described in Appendix 7 of Annex 4a.
              6.3.1.3. The vehicle cooling system should enable the vehicle to operate at temperatures similar to those obtained on road (oil, water, exhaust system, etc.).
              6.3.1.4. Certain other test bench adjustments and features are deemed to be identical, where necessary, to those described in Annex 4a of this Regulation (inertia, for example, which may be mechanical or electronic).
              6.3.1.5. The vehicle may be moved, where necessary, to a different bench in order to conduct emission measurement tests.
              6.3.2. Operation on track or road
               When the durability test is completed on track or road, the vehicle's reference mass will be at least equal to that retained for tests conducted on a chassis dynamometer.
              7. Measuring emissions of pollutants
               At the start of the test (0 km), and every 10,000 km (±400 km) or more frequently, at regular intervals until having covered 160,000 km, exhaust emissions are measured in accordance with the Type I Test as defined in paragraph 5.3.1. of this Regulation. The limit values to be complied with are those laid down in paragraph 5.3.1.4. of this Regulation.
               In the case of vehicles equipped with periodically regenerating systems as defined in paragraph 2.20. of this Regulation, it shall be checked that the vehicle is not approaching a regeneration period. If this is the case, the vehicle must be driven until the end of the regeneration. If a regeneration occurs during the emissions measurement, a new test (including preconditioning) shall be performed, and the first result not taken into account.
               All exhaust emissions results shall be plotted as a function of the running distance on the system rounded to the nearest kilometre and the best fit straight line fitted by the method of least squares shall be drawn through all these data points. This calculation shall not take into account the test results at 0 km.
               The data will be acceptable for use in the calculation of the deterioration factor only if the interpolated 6,400