xyster
10 MW
What's your favorite e-ride's power density expressed as Watts/Kg, including peak motor efficiency and total rider + bike weight? (including batteries, motor, etc)
If unsure of peak efficiency, use 90% for brushless systems, and 80% for brushed.
Results should create a distribution curve we can later compare to acceleration times, or hill climbing grade @ speed results.
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For example, my x5:
80 volts X 35 amps = 2,800 watts.
2,800 watts X 90% peak efficiency = 2,520 watts
2,520 watts of Power to the pavement.
Bike weight = 45kg. My weight = 77kg. Total weight = 122 kg
System Power Density = 2,520 watts / 122 kg = 20.6 Watts/Kg
If unsure of peak efficiency, use 90% for brushless systems, and 80% for brushed.
Results should create a distribution curve we can later compare to acceleration times, or hill climbing grade @ speed results.
--------------------------------------------------------
For example, my x5:
80 volts X 35 amps = 2,800 watts.
2,800 watts X 90% peak efficiency = 2,520 watts
2,520 watts of Power to the pavement.
Bike weight = 45kg. My weight = 77kg. Total weight = 122 kg
System Power Density = 2,520 watts / 122 kg = 20.6 Watts/Kg