Document ID: chunk:federal_register_of_legislation:F2022C00213:reg:18:p2
Version: federal_register_of_legislation:F2022C00213
Segment Type: reg
Provision Reference: reg 18 (pt 2/6)
Character Range: 347450–350459

the test with those batteries that are installed in the test vehicle.

      2.4. Operation mode

       All the tests are conducted at a temperature of between 20 C and 30 C.

       The test method includes the four following steps:

       (a) Initial charge of the battery;
       (b) Application twice of the cycle made of four elementary urban cycles and an extra‑urban cycle;
       (c) Charging the battery;
       (d) Calculation of the electric energy consumption.

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

      2.4.1. Initial charge of the battery

       Charging the battery consists of the following procedures:

      2.4.1.1. Discharge of the battery

       The procedure starts with the discharge of the battery of the vehicle while driving (on the test track, on a chassis dynamometer, etc.) at a steady speed of 70 per cent ± 5 per cent from the maximum thirty minutes speed of the vehicle.

       Stopping the discharge occurs:

          (a) when the vehicle is not able to run at 65 per cent of the maximum thirty minutes speed;
          (b) or when an indication to stop the vehicle is given to the driver by the standard on-board instrumentation, or
          (c) after covering the distance of 100 km.

      2.4.1.2. Application of a normal overnight charge

       The battery shall be charged according to the following procedure.

      2.4.1.2.1. Normal overnight charge procedure

       The charge is carried out:

          (a) with the on-board charger if fitted,
          (b) with an external charger recommended by the manufacturer, using the charging pattern prescribed for normal charging,
          (c) in an ambient temperature comprised between 20 C and 30 C.

       This procedure excludes all types of special charges that could be automatically or manually initiated like, for instance, the equalisation charges or the servicing charges.

       The car manufacturer shall declare that during the test, a special charge procedure has not occurred.

      2.4.1.2.2. End of charge criteria

       The end of charge criteria corresponds to a charging time of 12 hours except if a clear indication is given to the driver by the standard instrumentation that the battery is not yet fully charged.

       In this case,

      2.4.1.2.3. Fully charged battery

       Battery having been charged according to overnight charge procedure until the end of charge criteria.

      2.4.2. Application of the cycle and measurement of the distance

       The end of charging time t0 (plug off) is reported.

       The chassis dynamometer shall be set with the method described in appendix 1 to this annex.

       Starting within 4 hours from t0, the cycle made of four elementary urban cycles and an extra-urban cycle is run twice on a chassis dynamometer (test distance:  22 km, test duration:  40 minutes).

       At the end, the measure Dtest of the covered distance in