Document ID: chunk:federal_register_of_legislation:F2017C01153:front:0:p18
Version: federal_register_of_legislation:F2017C01153
Segment Type: other
Provision Reference: 
Character Range: 55487–58458

distance (S) shall be S ≤  0.0060 V2 (where V is the specified test speed in km/h and S is the required stopping distance in metres).

       5. High speed test

       5.1. Vehicle condition:

        (a) The test is applicable to vehicle categories L3, L5 and L4;

        (b) Test is not required for vehicles with Vmax ≤  125 km/h;

        (c) Lightly loaded;

        (d) Engine connected with the transmission in the highest gear.

       5.2. Test conditions and procedure:

        (a) Initial brake temperature:  ≥  55 °C and ≤  100 °C;

                  (b)    Test speed: 0.8 Vmax for vehicles with Vmax >  125 km/h and   200 km/h;
           160 km/h for vehicles with Vmax ≥  200 km/h;

            (c) Brake application:

             Simultaneous actuation of both service brake system controls, if so equipped, or of the single service brake system control in the case of a service brake system that operates on all wheels;

        (d) Brake actuation force:

         Hand control: ≤  200 N;

         Foot control: ≤  350 N for vehicle categories L3 and L4;
            ≤  500 N for vehicle category L5;

            (e) Number of stops:  until the vehicle meets the performance requirements, with a maximum of 6 stops;

            (f) For each stop, accelerate the vehicle to the test speed and then actuate the brake control(s) under the conditions specified in this paragraph.

       5.3. Performance requirements:

        When the brakes are tested in accordance with the test procedure set out in paragraph 5.2.:

            (a) The stopping distance (S) shall be ≤  0.1 V + 0.0067 V2
             (where V is the specified test speed in km/h and S is the required stopping distance in metres); or

            (b) The MFDD shall be ≥  5.8 m/s2.

       6. Wet brake test

       6.1. General:

            (a) The test is comprised of two parts that are carried out consecutively for each brake system:
                (i) A baseline test based on the dry stop test - single brake control actuated (section 3. of this annex);

                (ii) A single wet brake stop using the same test parameters as in (i), but with the brake(s) being continuously sprayed with water while the test is conducted in order to measure the brakes' performance in wet conditions;

            (b) The test is not applicable to a parking brake system, unless it is the secondary brake;

            (c) Drum brakes or fully enclosed disc brakes are exempt from this test unless ventilation or open inspection ports are present;

            (d) This test requires the vehicle to be fitted with instrumentation that gives a continuous recording of brake control force and vehicle deceleration.  The MFDD and the stopping distance measurements are not appropriate in this case.

       6.2. Vehicle condition:

        (a) The test is applicable to all vehicle categories;

            (b) Laden:

             For vehicles fitted with CBS and split service