Document ID: chunk:federal_register_of_legislation:F2017C01153:front:0:p4
Version: federal_register_of_legislation:F2017C01153
Segment Type: other
Provision Reference: 
Character Range: 11781–14646

it to a further test such as the heating procedure or wet brake stop.

       2.4. "Brake" means those parts of the brake system where the forces opposing the movement of the vehicle are developed.

       2.5. "Brake system" means the combination of parts consisting of the control, transmission, and brake, but excluding the engine, whose function it is to progressively reduce the speed of a moving vehicle, bring it to a halt, and keep it stationary when halted.

       2.6. "Combined brake system (CBS)" means:

        For vehicle categories L1 and L3:  a service brake system where at least two brakes on different wheels are operated by the actuation of a single control.

        For vehicle categories L2 and L5:  a service brake system where the brakes on all wheels are operated by the actuation of a single control.

        For vehicle category L4:  a service brake system where the brakes on at least the front and rear wheels are operated by the actuation of a single control.  (If the rear wheel and sidecar wheel are braked by the same brake system, this is regarded as the rear brake.)

       2.7. "Components of the braking system" means one of the individual parts which, when assembled, constitute the braking system.

       2.8. "Control" means the part actuated directly by the rider in order to supply or control the energy required for braking the vehicle to the transmission.

       2.9. "Different types of braking systems" means devices which differ in such essential respects as:

            (a) Components having different characteristics;

            (b) A component made of materials having different characteristics, or a component differing in shape or size;

            (c) A different assembly of the components.

       2.10. "Driver mass" means the nominal mass of a driver that shall be 75 kg (subdivided into 68 kg occupant mass at the seat and 7 kg luggage mass).

       2.11. "Engine disconnected" means when the engine is no longer connected to the driving wheel(s).

       2.12. "Gross vehicle mass" or "maximum mass" means the technically permissible maximum laden mass as declared by the manufacturer.

       2.13. "Initial brake temperature" means the temperature of the hottest brake before any brake application.

       2.14. "Laden" means so loaded as to attain the gross vehicle mass as defined in paragraph 2.12.

       2.15. "Lightly loaded" means mass in running order plus 15 kg for test equipment, or the laden condition, whichever is less.  In the case of ABS tests on a low friction surface (Annex 3, paras. 9.4. to 9.7.), the mass for test equipment is increased to 30 kg to account for outriggers.

       2.16. "Mass in running order" means the sum of the unladen vehicle mass and driver mass.

       2.17. "Peak braking coefficient (PBC)" means the measure of tyre to road surface friction