Document ID: chunk:federal_register_of_legislation:F2022C00213:reg:120:p13
Version: federal_register_of_legislation:F2022C00213
Segment Type: reg
Provision Reference: reg 120 (pt 13/56)
Character Range: 190133–193280

One cycle and the Part Two cycle respectively.

       5.3.4. Fuel consumption at zero battery energy balance (C0)

       5.3.4.1. The fuel consumption C0 at Ebatt = 0 is determined by the following equation:

       C0 = C – Kfuel·Q           (l/100 km)

        where:

         C: fuel consumption measured during test (l/100 km)

         Q: electricity balance measured during test (Ah)

       5.3.4.2. Fuel consumption at zero battery energy balance shall be determined separately for the fuel consumption values measured over the Part One cycle and the Part Two cycle respectively.

       5.3.5. CO2-emission correction coefficient (KCO2) defined by the manufacturer

       5.3.5.1. The CO2-emission correction coefficient (KCO2) shall be determined as follows from a set of n measurements performed by the manufacturer.  This set should contain at least one measurement with QI < 0 and at least one with Qj > 0.

        If the latter condition can not be realised on the driving cycle (Part One or Part Two) used in this test, then it is up to the Technical Service to judge the statistical significance of the extrapolation necessary to determine the CO2-emission value at Ebatt = 0.

       5.3.5.2. The CO2-emission correction coefficient (KCO2) is defined as:

       KCO2 = (n·QiMi - Qi·Mi) / (n·Qi2 – (Qi)2) (g/km/Ah)

        where:

         Mi : CO2-emission measured during i-th manufacturer's test (g/km)

         Qi : electricity balance during i-th manufacturer's test (Ah)

         n : number of data

        The CO2-emission correction coefficient shall be rounded to four significant figures (e.g. 0.xxxx or xx.xx).  The statistical significance of the CO2-emission correction coefficient is to be judged by the Technical Service.

       5.3.5.3. Separate CO2-emission correction coefficients shall be determined for the fuel consumption values measured over the Part One cycle and the Part Two cycle respectively.

       5.3.6. CO2-emission at zero battery energy balance (M0)

       5.3.6.1. The CO2-emission M0 at Ebatt = 0 is determined by the following equation:

       M0 = M – KCO2·Q           (g/km)

 where:

         C: fuel consumption measured during test (l/100 km)

         Q: electricity balance measured during test (Ah)

       5.3.6.2. CO2-emission at zero battery energy balance shall be determined separately for the CO2-emission values measured over the Part One cycle and the Part Two cycle respectively.

       6. Not Externally Chargeable (notOVC HEV) with an operating mode switch

       6.1. These vehicles shall be tested in hybrid mode according to Annex 6, using the applicable driving cycle and gear shifting prescriptions as defined in paragraph 1.4. of this annex.  If several hybrid modes are available, the test shall be carried out in the mode that is automatically set after turn on of the ignition key (normal mode).

       6.1.1. Emissions of carbon dioxide (CO2) and fuel consumption shall be determined separately for the Part One (urban driving) and the Part Two (extra-urban driving) of the specified driving cycle.