Document ID: chunk:federal_register_of_legislation:F2021C00476:body:0:p5
Version: federal_register_of_legislation:F2021C00476
Segment Type: other
Provision Reference: 
Character Range: 14048–17166

Appendix 3 - Performance on differing adhesion surfaces
         Appendix 4 - Method of selection of the low adhesion surface

         Annex 7 - Inertia dynamometer test method for brake linings

         Annex 8 - Special requirements to be applied to the safety aspects of complex electronic vehicle control systems, where the

         Annex 9 - Electronic stability control systems

         1. SCOPE

         1.1. This Regulation applies to the braking of vehicles of categories M1 and N1 [1]/.

         1.2 This Regulation does not cover:

         1.2.1. vehicles with a design speed not exceeding 25 km/h;

         1.2.2. vehicles fitted for invalid drivers.

         2. DEFINITIONS

          For the purposes of this Regulation,

         2.1. "Approval of a vehicle" means the approval of a vehicle type with regard to braking.

         2.2. "Vehicle type" means a category of vehicles which do not differ in such essential respects as:

         2.2.1. the maximum mass, as defined in paragraph 2.11. below;

         2.2.2. the distribution of mass among the axles;

         2.2.3. the maximum design speed;

         2.2.4. a different type of braking equipment, with more particular reference to the presence or otherwise of equipment for braking a trailer or any presence of electric braking system;

         2.2.5. the engine type;

         2.2.6. the number and ratios of gears;

         2.2.7. the final drive ratios;

         2.2.8. the tyre dimensions.

         2.3. "Braking equipment" means the combination of parts whose function is progressively to reduce the speed of a moving vehicle or bring it to a halt, or to keep it stationary if it is already halted; these functions are specified in paragraph 5.1.2. below.  The equipment consists of the control, the transmission, and the brake proper.

         2.4. "Control" means the part actuated directly by the driver to furnish to the transmission the energy required for braking or controlling it.  This energy may be the muscular energy of the driver, or energy from another source controlled by the driver, or a combination of these various kinds of energy.

         2.5. "Transmission" means the combination of components comprised between the control and the brake and linking them functionally.  The transmission may be mechanical, hydraulic, pneumatic, electric or mixed.  Where the braking power is derived from or assisted by a source of energy independent of the driver, the reserve of energy in the system is likewise part of the transmission.

          The transmission is divided into two independent functions: the control transmission and the energy transmission.  Whenever the term "transmission" is used alone in this Regulation, it means both the "control transmission" and the "energy transmission":

         2.5.1. "Control transmission" means the combination of the components of the transmission which control the operation of the brakes, including the control function and the necessary reserve(s) of energy;

         2.5.2. "Energy transmission" means the combination of the components which supply to