Document ID: chunk:federal_register_of_legislation:F2021C00477:body:0:p9
Version: federal_register_of_legislation:F2021C00477
Segment Type: other
Provision Reference: 
Character Range: 24879–27666

of the lateral velocity to the longitudinal velocity of the centre of gravity of the vehicle.
2.29. "Understeer" means a condition in which the vehicle's yaw rate is less than the yaw rate that would occur at the vehicle's speed as a result of the Ackerman steer angle.
2.30. "Yaw rate" means the rate of change of the vehicle's heading angle measured in degrees/second of rotation about a vertical axis through the vehicle's centre of gravity.
2.31. "Peak braking coefficient (PBC)": means the measure of tyre to road surface friction based on the maximum deceleration of a rolling tyre.
2.32. "Common space" means an area on which more than one tell-tale, indicator, identification symbol, or other message may be displayed but not simultaneously.
2.33. "Static stability factor" means one-half the track width of a vehicle divided by the height of its center of gravity, also expressed as SSF = T/2H, where: T = track width (for vehicles with more than one track width the average is used; for axles with dual wheels, the outer wheels are used when calculating "T") and H = height of the center of gravity of the vehicle.
2.34. "Brake Assist System (BAS)" means a function of the braking system that deduces an emergency braking event from a characteristic of the driver's brake demand and, under such conditions:
(a) Assists the driver to deliver the maximum achievable braking rate; or
(b) Is sufficient to cause full cycling of the Anti-lock Braking System.
2.34.1. "Category A Brake Assist System" means a system which detects an emergency braking condition based primarily[3] on the brake pedal force applied by the driver;
2.34.2. "Category B Brake Assist System" means a system which detects an emergency braking condition based primarily3 on the brake pedal speed applied by the driver;
2.35. "Identification Code" identifies the brake discs or brake drums covered by the braking system approval according to this regulation. It contains at least the manufacturer's trade name or trademark and an identification number.
3. Application for approval
3.1. The application for approval of a vehicle type with regard to braking shall be submitted by the vehicle manufacturer or by his duly accredited representative.
3.2. It shall be accompanied by the under-mentioned documents in triplicate and by the following particulars:
3.2.1. a description of the vehicle type with regard to the items specified in paragraph 2.2. above. The numbers and/or symbols identifying the vehicle type and the engine type shall be specified;
3.2.2. a list of the components, duly identified, constituting the braking equipment;
3.2.3. a diagram of assembled braking equipment and an indication of the position of its components on the vehicle;
3.2.4. detailed drawings of each component to enable it