Specifications
Brake assessment manual Ver 1.0 Published October 2013 44 (48 pages)
Test L: Type-I Hot performance
[Based on: ADR 31/01, Appendix A, Annex 3, Clause 1.5.2.]
This test is intended to check the performance of the brakes when hot.
The following general conditions apply:
• vehicles in Modification Category 16b shall be tested at 100 km/h
• vehicles in Modification Categories 17, 26 & 27 shall be tested at the lesser of 80% of
their maximum speed or 100 km/h
• vehicles in all other modifications categories shall be tested at 80 km/h
• the tests shall be done with the vehicle in the MLTM and LLTM conditions.
At the end of the Test K Type-I Heating Procedure, the hot performance of the service
braking system shall be measured in the same conditions (and in particular at a mean control
force no greater than the mean force actually used) as for the Test J (Type-0 Engine
Disconnected) although the temperature conditions may be different.
This hot performance must not be less than 75% of that prescribed, nor less than 60% of the
figure recorded for Test J.
Note: 75% corresponds to a stopping distance of 0.1v + 0.0080v2 and a mean fully developed
deceleration of 4.82 m/s
2
.
In the case of a vehicle which satisfies the 60% requirement, but which cannot comply with
the 75% requirement, a further hot performance test may be carried out using a control force
not exceeding 500 N. The results of both tests must be entered in the report.
For electric vehicles fitted with an electric regenerative braking system which is not part of
the service braking system, during brake applications, the highest gear shall be continuously
engaged and the separate electric braking Control, if any, not used.
In the case of the electric vehicles having carried out the cycles of heating, according to Test
K (Type-I Heating procedure), the performance tests shall be carried out at the speed
prescribed for the subject modification by the vehicle at the end of the cycles of heating.