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Division 6.8.1 Determination of delta flat belt or chassis dynamometer coefficientsF1

Original text. Later amendments are not shown.

The delta road load shall be calculated using the following equation:

FDj,Delta = FDj,N – FDj,R

where:

FDj,Delta

  • is the delta road load at reference speed j, N;

    • FDj,N

  • is the corrected resistance measured on the flat belt or chassis dynamometer at reference speed j calculated in accordance with paragraph 6.7.1. for vehicle N, N;

    • FDj,R

  • is the corrected resistance of the reference vehicle measured on the flat belt or chassis dynamometer at reference speed j calculated in accordance with paragraph 6.7.1. for reference vehicle R, N.

    • For all calculated FDj,Delta, the coefficients f0,Delta, f1,Delta and f2,Delta in the road load equation shall be calculated with a least squares regression analysis.

    Annotations

    Textual amendments

    F1

    Inserted by Commission Regulation (EU) 2018/1832 of 5 November 2018 amending Directive 2007/46/EC of the European Parliament and of the Council, Commission Regulation (EC) No 692/2008 and Commission Regulation (EU) 2017/1151 for the purpose of improving the emission type approval tests and procedures for light passenger and commercial vehicles, including those for in-service conformity and real-driving emissions and introducing devices for monitoring the consumption of fuel and electric energy (Text with EEA relevance).