Document ID: chunk:federal_register_of_legislation:F2021C00476:body:0:p31
Version: federal_register_of_legislation:F2021C00476
Segment Type: other
Provision Reference: 
Character Range: 87067–89955

240° in all;

         1.2.11. For a vehicle with electrically actuated service brakes powered from traction batteries (or an auxiliary battery) which receive(s) energy only from an independent external charging system, these batteries shall, during braking performance testing, be at an average of not more than 5 per cent above that state of charge at which the brake failure warning prescribed in paragraph 5.2.20.5. is required to be given.

          If this warning is given, the batteries may receive some recharge during the tests, to keep them in the required state of charge range.

         1.3.  Behaviour of the vehicle during braking

         1.3.1.  In braking tests, and in particular in those at high speed, the general behaviour of the vehicle during braking must be checked.

         1.3.2. Behaviour of the vehicle during braking on a road on which adhesion is reduced must meet the relevant requirements of Annex 5 and/or Annex 6 to this Regulation.

         1.3.2.1. In the case of a braking system according to paragraph 5.2.7. where the braking for a particular axle (or axles) is comprised of more than one source of braking torque, and any individual source can be varied with respect to the other(s), the vehicle shall satisfy the requirements of Annex 5, or alternatively, Annex 6 under all relationships permitted by its control strategy [8]/.

         1.4.  Type-0 test (ordinary performance test with cold brakes)

         1.4.1.  General

         1.4.1.1. The average temperature of the service brakes on the hottest axle of the vehicle, measured inside the brake linings or on the braking path of the disc or drum, is between 65 and 100°C prior to any brake application.

         1.4.1.2. The test must be conducted in the following conditions:

         1.4.1.2.1. the vehicle must be laden, the distribution of its mass among the axles being that stated by the manufacturer; where provision is made for several arrangements of the load on the axles the distribution of the maximum mass among the axles must be such that the mass on each axle is proportional to the maximum permissible mass for each axle;

         1.4.1.2.2. every test must be repeated on the unladen vehicle; there may be, in addition to the driver, a second person on the front seat who is responsible for noting the results of the test;

         1.4.1.2.3. in the case of a vehicle equipped with an electric regenerative braking system, the requirements depend on the category of this system:

          Category A.  Any separate electric regenerative braking control which is provided, shall not be used during the Type-0 tests.

          Category B.   The contribution of the electric regenerative braking system to the braking force generated shall not exceed that minimum level guaranteed by the system design.

          This condition is deemed to be satisfied if the