Document ID: chunk:federal_register_of_legislation:F2022C00213:reg:120:p21
Version: federal_register_of_legislation:F2022C00213
Segment Type: reg
Provision Reference: reg 120 (pt 21/30)
Character Range: 416315–419425

OF MEASURING THE ELECTRIC RANGE OF VEHICLES POWERED BY AN ELECTRIC POWER TRAIN ONLY OR BY A HYBRID ELECTRIC POWER TRAIN AND THE OVC RANGE OF VEHICLES POWERED BY A HYBRID ELECTRIC POWERTRAIN

         1. MEASUREMENT OF THE ELECTRIC RANGE

          The test method described hereafter permits to measure the electric range, expressed in km, of vehicles powered by an electric power train only or the electric range and OVC range of vehicles powered by a hybrid electric power train with off-vehicle charging (OVC-HEV as defined in paragraph 2. of Annex 8).

         2. PARAMETERS, UNITS AND ACCURACY OF MEASUREMENTS

          Parameters, units and accuracy of measurements shall be as follows:

Parameter            Unit  Accuracy          Resolution
Time                 s     +/- 0.1 s         0.1 s
Distance             m     +/- 0.1 per cent  1 m
Temperature degrees  C     +/- 1 degree C    1 degree C
Speed                km/h  +/- 1 per cent    0.2 km/h
Mass                 kg    +/- 0.5 per cent  1 kg
Electricity balance  Ah    +/- 0.5 per cent  0.3 per cent

         3. TEST CONDITIONS

         3.1. Condition of the vehicle

         3.1.1. The vehicle tyres shall be inflated to the pressure specified by the vehicle manufacturer when the tyres are at the ambient temperature.

         3.1.2. The viscosity of the oils for the mechanical moving parts shall conform to the specifications of the vehicle manufacturer.

         3.1.3. The lighting and light-signalling and auxiliary devices shall be off, except those required for testing and usual daytime operation of the vehicle.

         3.1.4. All energy storage systems available for other than traction purposes (electric, hydraulic, pneumatic, etc.) shall be charged up to their maximum level specified by the manufacturer.

         3.1.5. If the batteries are operated above the ambient temperature, the operator shall follow the procedure recommended by the vehicle manufacturer in order to keep the temperature of the battery in the normal operating range.

          The manufacturer's agent shall be in a position to attest that the thermal management system of the battery is neither disabled nor reduced.

         3.1.6. The vehicle must have undergone at least 300 km during the seven days before the test with those batteries that are installed in the test vehicle.

         3.2. Climatic conditions

          For testing performed outdoors, the ambient temperature shall be between 5 °C and 32 °C.

          The indoors testing shall be performed at a temperature between 20 °C and 30 °C.

         4. OPERATION MODES

          The test method includes the following steps:

            (a) Initial charge of the battery;

            (b) Application of the cycle and measurement of the electric range.

          Between the steps, if the vehicle shall move, it is pushed to the following test area (without regenerative recharging).

         4.1. Initial charge of the battery

          Charging the battery consists of the following procedures:

         Note: "Initial charge of the battery" applies to the