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Division Formula 1

United Kingdom

Original text. Later amendments are not shown.

where, for each operating point i,

Ui

  • is the voltage [V];

    • Ii

  • is the current intensity [A];

    • Μi

  • is the torque [Nm];

    • ni

  • is the rotational frequency [min-1].

    • For each operating point, the measurements shall be performed at least five times consecutively and the efficiency shall be calculated for each of those measurements () with j being the index referring to one set of measurements.

    For each operating point, the average of those efficiencies () shall be calculated.

    The efficiency of the 12V motor-generator (ηMG) [%] shall be calculated in accordance with Formula 2.

    Notes on Division 2

    Textual amendments

    F1

    Words in Annex point 2 substituted (31.12.2020) by The Road Vehicle Carbon Dioxide Emission Performance Standards (Cars and Vans) (Amendment) (EU Exit) Regulations 2020 (S.I. 2020/1418), regs. 1(3), 12(5)(a)