Division 4.4.2.3 Vehicle torque meter measurement procedure

Prior to the torque meter method test measurement, a vehicle warm-up shall be performed according to paragraph 4.2.4. of this Sub-Annex.

During test measurement, steering wheel movement shall be avoided as much as possible, and the vehicle brakes shall not be operated.

The test shall be repeated until the running resistance data satisfy the measurement precision requirements as specified in paragraph 4.4.3.2. of this Sub-Annex.

Although it is recommended that each test run be performed without interruption, split runs may be performed if data cannot be collected in a single run for all the reference speed points. For split runs, care shall be taken so that vehicle conditions remain as stable as possible at each split point