Document ID: chunk:federal_register_of_legislation:F2017C01153:front:0:p9
Version: federal_register_of_legislation:F2017C01153
Segment Type: other
Provision Reference: 
Character Range: 25009–28008

reservoir capacity.

        To permit function checking, the warning lamp shall be illuminated by the activation of the ignition switch and shall be extinguished when the check has been completed.  The warning lamp shall remain on while a failure condition exists whenever the ignition switch is in the "on" position.

       5.1.13. Vehicles that are equipped with an ABS system shall be fitted with a yellow warning lamp.  The lamp shall be activated whenever there is a malfunction that affects the generation or transmission of signals in the vehicle's ABS system.

        To permit function checking, the warning lamp shall be illuminated by the activation of the ignition switch and extinguished when the check has been completed.

        The warning lamp shall remain on while a failure condition exists whenever the ignition switch is in the "on" position.

       5.2. Durability

       5.2.1. Wear of the brakes shall be compensated for by means of a system of automatic or manual adjustment.

       5.2.2. The friction material thickness shall either be visible without disassembly, or where the friction material is not visible, wear shall be assessed by means of a device designed for that purpose.

       5.2.3. During all the tests in this Regulation and on their completion, there shall be no friction material detachment and no leakage of brake fluid.

       5.3. Measurement of dynamic performance

        The method used to measure performance is as specified in the respective tests in Annex 3.  There are three ways in which the service brake system performance may be measured:

       5.3.1. MFDD (Mean Fully Developed Deceleration):

        Calculation of MFDD:

         in m/s2

        where:
              dm = mean fully developed deceleration
              V1 = vehicle speed when rider actuates the control
              Vb = vehicle speed at 0.8 V1 in km/h
              Ve = vehicle speed at 0.1 V1 in km/h
              Sb = distance travelled between V1 and Vb in metres
              Se = distance travelled between V1 and Ve in metres

       5.3.2. Stopping distance:

        Based on the basic equations of motion:

         S = 0.1·V + (X) ·V2

        where:

         S = stopping distance in metres
         V = vehicle speed in km/h
         X = a variable based on the requirement for each test

        To calculate the corrected stopping distance using the actual vehicle test speed, the following formula is used:

         Ss = 0.1·Vs + (Sa – 0.1·Va) · Vs2/Va2

        where:

         Ss = corrected stopping distance in metres
         Vs = specified vehicle test speed in km/h
         Sa = actual stopping distance in metres
         Va = actual vehicle test speed in km/h

        Note:  This equation is only valid when the actual test speed (Va) is within ± 5 km/h of the specified test speed (Vs).

       5.3.3. Continuous deceleration recording:

        For the burnishing procedure and tests such as the wet brake and heat fade