Document ID: chunk:federal_register_of_legislation:F2021C01192:body:0:p29
Version: federal_register_of_legislation:F2021C01192
Segment Type: other
Provision Reference: 
Character Range: 78856–81613

the maximum speed but not exceeding 120 km/h, to check that stability is retained.
1.2.9.1. Moreover, for vehicles fitted with an electric regenerative braking system of category A, transient conditions as gear changes or accelerator control release shall not affect the behaviour of the vehicle in condition described in paragraph 1.2.9. above;
1.2.10.  In the tests provided in paragraphs 1.2.9. and 1.2.9.1. above wheel locking is not allowed. However, steering correction is permitted if the angular rotation of the steering control is within 120° during the initial 2 seconds and not more than 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. of this Regulation 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 shall be checked.
1.3.2. Behaviour of the vehicle during braking on a road on which adhesion is reduced shall 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. of this Regulation 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.[10]

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 shall be conducted in the following conditions:
1.4.1.2.1. the vehicle shall 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 shall 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 shall be repeated on the unladen vehicle; there may be,