ISO 08709:2010 pdf free download – Mopeds一Brakes and brake systems一 Tests and measurement methods.
6.9.4 Continuous deceleration recording
For the burnishing procedure and the wet brake test, there is a continuous recording of the vehicle
instantaneous deceleration from the moment a force is applied to the brake control until the end of the stop.
6.10 Test report
The following information shall be recorded in the relevant test report(s) (see Annex A):
a) the test condition details (e.g. speeds, control forces, ambient conditions, vehicle identification, moped loading conditions, relevant tyre information);
b) the results of each test (e.g. mean fully developed deceleration, stopping distance, residual performance);
c) the sequence in which the tests were performed, where applicable;
d) any deviation of the vehicle from its course, any abnormal vibration, noise, behaviour, etc.
7 Test procedures
7.1 Dry stop test (single brake control actuated)
7.1.1 General
The test is applicable to all moped categories.
7.1.2 Moped condition
The moped condition shall be as follows:
a) moped laden;
b) for mopeds fitted with CBS, the moped is tested in the lightly loaded condition in addition to the laden condition;
c) engine disconnected.
NOTE No additional test is needed for mopeds fitted with CBS if the mass of the lightly loaded moped exceeds the mass of the laden moped.
7.1.3 Test conditions and procedure
The test conditions and procedure shall be as described below.
7.1.4 Performance measurement
For each stop and each control (see 7.1.3) and for each moped loading condition (see 7.1.2), the mean fully
developed deceleration or stopping distance shall be measured and recorded.
7.2 Wet brake test
7.2.1 General
The test is comprised of two parts that are carried out consecutively for each brake system:
— a baseline test based on the dry stop test with single brake control actuated (see 7.1);
a single wet brake stop using the same test parameters as the baseline test, 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.
The test is applicable to all moped categories.
The test is not applicable to the parking brake system unless this acts as the secondary brake system.
Drum brakes or fully enclosed disc brakes are exempt from this test unless ventilation or open inspection ports are present.
This test requires the moped 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.
7.2.2 Moped condition
The moped condition shall be as follows:
a) moped laden;
b) for mopeds fitted with CBS, the moped is tested in the lightly loaded condition in addition to the laden condition;
c) engine disconnected;
d) each brake is fitted with water spray equipment:
for disc brakes, the water spray equipment is installed as follows (see Figure 2):
i) water is sprayed onto each brake with a flow rate of 15 I/h; the water is equally distributed on each side of the rotor.