Document ID: chunk:federal_register_of_legislation:F2010C00150:front:0:p25
Version: federal_register_of_legislation:F2010C00150
Segment Type: other
Provision Reference: 
Character Range: 68059–71068

which cannot comply with the 751/ % requirement of paragraph 1.5.2.2. of this annex, a further hot performance test may be carried out using a control force not exceeding that specified in paragraph 2. of this annex. The results of both tests shall be entered in the report.

         1.5.2.5. In the case of the electric vehicles having carried out the cycles of heating, according to paragraph 1.5.1.6. of the present annex, the performance tests shall be carried out at the maximum possible speed by the vehicle at the end of the cycles of heating. For comparison, the performance of the Type-0, brakes cold, will be repeated at this same speed after reconditioning of the linings.

1.5.3. Recovery procedure

          Immediately after the hot performance test, make four stops from 50km/h with the engine connected, at a mean deceleration of 3m/s2. Allow an interval of 1.5km between the start of successive stops. Immediately after each stop, accelerate at maximum rate to 50km/h and maintain that speed until making the next stop.

l.5.4. Recovery performance

          At the end of the recovery procedure, the recovery performance of the service braking system must be measured in the same conditions as for the Type-0 test with the engine disconnected (the temperature conditions may be different), using a mean force on the control, which is not more than the mean control force used in the corresponding Type-   0 test.

          This recovery performance must not be less than 70%, nor more than 150%, of the figure recorded in the Type-0 test with the engine disconnected.

2. PERFORMANCE OF BRAKING SYSTEMS

2.1. Service braking system

         2.1.1. The service brakes shall be tested under the conditions shown in the following table:

(A)  Type-0 test with engine disconnected  v     100km/h
                                           s ≤   0.1v + 0.0060v2 (m)
                                           dm ≥  6.43m/s2
(B)  Type-0 test with engine connected     v     80% vmax ≤ 160km/h
                                           s ≤   0.1v + 0.0067v2 (m)
                                           dm ≥  5.76m/s2
                                           f     6.5 - 50daN

 where :
 v = test speed, in km/h
 s = stopping distance, in metres
          dm = mean fully developed deceleration, in m/s2  f = force applied to foot control, in daN
 vmax = maximum speed of the vehicle, in km/h

         2.1.2. In the case of a motor vehicle authorized to tow an unbraked trailer, the minimum performance prescribed for the corresponding motor vehicle for the Type-0 test with engine disconnected must be attained with the unbraked trailer coupled to the motor vehicle and with the unbraked trailer laden to the maximum mass declared by the motor vehicle manufacturer. However, the minimum combination performance shall be not less than 5.4m/s2 both in laden and unladen conditions.

          The combination performance shall be verified by calculations referring to the maximum braking