Average fuel consumption at each given speed
Average value is highlighted with a dot, along with min/max range and standard deviation.
Note that under 70 km/h, variation is really high, since the electric motor can push the car with no petrol engine contribution
BSFC Value
Value of g/kWh during the trip.
Note how BSFC value gets better as the engine enters best temperature range and speed variations are kept at minimum.
At which power output is the engine more efficient?
The BFSC for kW chart shows precisely that.
The measure uses only values from optimal temperature range, and is significant when performed on a long trip with many different and steady power requests.
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