Hi all, Just signed in for the first time to say hello and tell you why I have joined.
I have bought a DIY electric motor 6355 260KV and the mini FSESC4 .20 50A (baced on FESC 4.12 ) to go with it (was on a skate board build) Also have the switch to got with it and a twist grip throttle control that I got from eBay.
The plan is to power a 1950's moped with this motor. I have already fitted the motor and wired it up with the parts that I got from the Skateboard build.
The motor is directly driving what was the left hand side of the crankshaft.
I have got all the parts, apart from a battery. I am looking at buying a 24volt 6s 15watt from china on ebay.
I am a good mechanic but not so good on watts, amps and all that goes with this new world electric powered vehicles !
Questions that I would like help with please are:
1/ The FESC has been set up for a skate board by the previous owner, will I be ok to connect it to see if the motor powers up ok and drives my gearbox.
2/ Can I connect a 12v 3Ah motor cycle battery to the system for checking or is this a big No No.
3/ When it comes to setting up the FESC, I will have to use my pc as I only have a IPhone. How do I go about connecting the system to my pc? I have the mini usb wire but not sure what software I need.
So for any of you who are thinking "who is this crazy guy" I apologize ! But would be grateful for any help.
Cheers
Mickey
Hi Mickey,
to be honest, your setup looks non ideal. The motor is very small and very fast. Not strong enough for a Moped.
For a 4.xx VESC based controller 120-160KV is about the best to use. ERPM limit is 60.000 ERPM. In your case that is probably around 8000 RPM (60K / 7 pole pairs). 24V is way to low. You want 37V to 44V (10 or 12S LiIthium). Software is available on this website. https://vesc-project.com/vesc_tool.
You really want a bigger motor, 80mm size outrunner with 14 poles and 150-190KV. You also want a VESC or VESC based controller that can push the amps.
https://www.youtube.com/watch?v=PPyHvkypKjo&t=145s