Field weakening on vesc for increased motor speed

Anyone checked out field weakening on a vesc? Should allow increased rpm past the theoretically FOC maximum. I’d like to try it out but don’t want to risk my working setup yet… Need a backup vesc :grin: or wait until the fall.

Unfortunately it looks like it causes a massive drop in efficiency with typical esk8 motors. That probably applies to our motors as well.

Yes it would lose efficiently compared to a higher kv motor, but only in the range where the lower kv motor couldn’t reach before.

I was thinking you would only need it in for a boost at times, such as when your are normally maxed out on motor rpm. If you never top out your motor rpm you wouldn’t get any loss of efficiently

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I’m extremely interested in this too. It’s something I’ve always wanted to try on an Efoil. I think it is a much safer platform to test this on compared to dealing with concrete riding a skateboard :grinning_face_with_smiling_eyes:.

I will test it with 12s and a Flipsky FSESC 200A.