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Acceleration isn't required to be quick, 10 seconds is fine if not slowerNeed more information to determine this.
How quickly do you require to accelerate up to top speed? How fast to travel up the 30 degree slope?
What size tires?
Do you have a datasheet for any of these motors of interest?
i estimate from the limited data that you would need a motor rated at ~12 HP, and a battery pack that could supply 200 Amps, for a 10-second acceleration on flat land up to top speed.
Hi,...
The fact i can run the axial flux motors at 48volts is one of the major draws to me, also they seem to be very easy to package. I understand i will need considerable ratio reduction to achieve my requirements though.
My worries are that they will still struggle with the low end torque, even with sufficient gearing attached.
If anyone has used an axial flux motor previously, or if you would recommend something else i would love to hear it.
Thanks
I am actually looking at 48v DC system but i think what you say is correct with that a standard series wound application is more suitable.Even though ac motors can potentially spin more rpms in general.
at 48 volt you will
1. need a very large ac motor to perform the same duty cycle as a smaller series model
2. To have adequate starting torque, you Likely will have very limited top speed/rpm without shiftable gears
(ac motors need very high voltages to have any power at higher rpm to even start performing like a series motor)
Your usage case is the definition of a standard series wound application
Lastly cost, to make an ac system work correctly with your requirements and constraints will be an order of magnitude more expensive than series wound and even then given the low voltage likely operate in an inferior way
So the payback on the “efficiency “ is likely not there , especially at 48 volts where an ac motor is less efficient