Lurkin
100 kW
I've realised to date, I've really gotten by relying on vendors information to calculate or understand the specifications of the ebike products I am buying. But as I find new vendors, the information changes and I need to convert it to be able to actually use it. Using various calculators has become a bandaid for not learning the actual underlying calculations.
I realise that Kv, Turn Count, Voltage, Current (therefore power), wheel diameter all all functions of overall wheel (and ergo my) speed.
For instance:
Motor RPM: 206
Voltage: 36v
Motor max power: 800w
Wheel size: 26"
26" wheel = 660.4/100,000 x Pi = 0.002074708 kms
206 RPM = 206 x 60 = 12,360 RPHR
km/h = 0.002074708 / 12,360 = 25.64338827 km/h
Does this mean I can derive kv as follows:
kv = rpm/V
kv = 206/36
kv = 5.7222 rpm/V
therefore at 48v
48 x 5.7222 = 274.7rpm
274.7 RPM x 60 = 16,480 RPHR
km/h = 0.002074708 / 16,480 = 34.19km/h
Is it possible to derive the turn count?
Is it possible to calculate the torque?
I realise that Kv, Turn Count, Voltage, Current (therefore power), wheel diameter all all functions of overall wheel (and ergo my) speed.
For instance:
Motor RPM: 206
Voltage: 36v
Motor max power: 800w
Wheel size: 26"
26" wheel = 660.4/100,000 x Pi = 0.002074708 kms
206 RPM = 206 x 60 = 12,360 RPHR
km/h = 0.002074708 / 12,360 = 25.64338827 km/h
Does this mean I can derive kv as follows:
kv = rpm/V
kv = 206/36
kv = 5.7222 rpm/V
therefore at 48v
48 x 5.7222 = 274.7rpm
274.7 RPM x 60 = 16,480 RPHR
km/h = 0.002074708 / 16,480 = 34.19km/h
Is it possible to derive the turn count?
Is it possible to calculate the torque?