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Glad you came back with the fix as it will help others.

I like that sound and honestly don't mind the noise too much. I can see a little kit on sale shortly

I would think you are seeing the PWM frequency (made to look sinusiodal by the inductance of the motor) and the much lower frequency of the phase current used to drive it.
But without a scale it is...

Cool sounds like I need to get me one of these brains! and one from Labowski

Neat. You are now the 2nd person I know using that Brain. What are you using as the IGBT driver circuit? the OEM one?

I wish... like you I am doing research. I have a Hall effect current sensor and a small test setup but not really enough to confirm what I am doing.
I think the detecting a full charge can help...

Great news. I know I for one would like to have a look at the coulomb counting code and logic, I would also be really happy to help test and debug that part o f the project.

Great lessons.

I would actually have it inverse... so when the bike is stopped or slow it has a hum to let you and other people know, once going at speed sound doesn't really add much safety (if at all) and it...

We did get mine into a 4 wheel contraption with the same motor as my bike...


https://www.youtube.com/watch?v=9UwZ3wB84c8

With the tires warm it becomes very interesting :)

...

that is quite a big controller for that. The motor states 200amps continuous and that controller will do 300. you drop a size down and save 200USD.

I currently have one of the D models, 450amp 72 volt. Seems to be quite awesome... gotta get it on my bike sometime soon.

Looking good!

Carnut1100 welcome and hello. I am in Canberra and did my own motorcycle conversion a few years back.
You might want to check what the LAMS (learner approved motorcycle scheme for non Aussies) says...

Yes this is an annoying problem with the older Kelly's. The new ones seem to be a little better, I hate it when I am cornering.

You can reduce the effect if you slow down the "Throttle Up/Down...

Nothing beats more amps :)

So motor current then... From the Kelly site for the Brushed controller
• Motor Current Limit, 1 minute: 400A.
• Motor Current Limit, continuous: 160A.

Your right... I didn't order one just couldn't remember when I typed.

Cool I actually found some advertised and based on your descovery have orded a relay board, Arduino Nano (I have some Uno's and Mega's), and FTDI board for about 30 bucks australian. pretty good.
I...

Btw gotta ask where you got that relay board from.

Just to remember Kelly rate their controllers on peak Phase Amps, not battery amps. So peak of 280 from your batteries is probably right.

That is cool.. will download and try. Seems to be a reasonable replacement for the m-Unit from Motogadget

I agree with podolefsky, if you can avoid using them they will not return to full strength and in a few months you want to remove them again.

Definitely worth getting behind

Nothing better than an empty frame to start with.