Division 7.2 Calculation of the measured fuel consumptionF1

Fuel consumption measured by integrating fuel mass flow over the complete fuel consumption measurement phase [g/kWh]

Instantaneous fuel mass flow measured during the fuel consumption measurement phase [g/s]

Sampling rate [Hz]

Verification test work at the wheel calculated from the measured wheel torque and wheel rotational speeds over the complete fuel consumption measurement phase [kWh]

${\mathrm{VT\; work}}_m=\sum _{t=0}^{\mathrm{end}}\frac{{\sum }_2^{i=1}{P}_{\mathrm{wheel-i-measured,t}}}{3600\times \mathrm{fs}}$

Positive power at the left (i = l) and right (i = 2) wheel calculated from the measured wheel torque and wheel rotational speeds at time step t where only power values greater zero are considered

$P_{\mathrm{wheel-i-measured,t}}=\mathrm{0,001}\times {\mathrm{torque}}_i\times {\mathrm{rpm}}_i\times \frac{2\times \pi }{60}$

instantaneously measured torque at the wheel ‘ i ’ in time step ‘ t ’ [Nm]

instantaneously measured rotational speed at the wheel ‘i’ in time step ‘t’ [min ^– 1 ]

NCV of the fuel used in the verification test determined in accordance with point 3.2 of Annex V [MJ/kg]

Standard NCV in accordance with Table 4 of Annex V [MJ/kg]

Fuel consumption measured by integrating fuel mass over the complete fuel consumption measurement phase corrected for the test fuel NCV [g/kWh]