Go-FOC G300 100V 300A

Unless ur after more voltage or current I don’t see the point. How many amps can ur motor do?

It’s clear that the main thing is a higher current, I won’t push 500A but definitely more than now… let’s say that acceleration can be improved… maximum speed 95 kmh = 59 mph on a 20-inch fat tire… as for speed I think I’m already at the limit but until I try I can’t know…

Are you using field weakening?

Yes

It pretty much all boils down to how clean the current sensing is.
Things like differential trace layout, quality of the op-amps, ground plane / PCB design Etc.

It’s all about feedback,
Clean current sensing = good motor control.
Noisy current sensing = not-so-good motor control.

Flipsky tends to just copy paste designs, doing the bare minimum to to get a
“just good enough” product out the door

On the other end of the spectrum, guys like BenjaminV and TechAUmNu (Euan) of TeamTriForce,
spend a large part of hardware development making sure current sensing is clean as possible.

To some degree, you can mitigate the problems with lower quality esc’s
by either not pushing the limits hard, or spending a lot of time tuning for your setup.
Tuning involves all the usual things,
Correct motor parameters.
Trying different observers.
Trying different filter settings,
ZVF frequency.
Etc. etc.

The time consuming part comes from the 10,000’s combinations possible.

I’m lazy, so I do basic tuning and don’t push the limits.

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You’re telling me there’s a bunch of info that requires a lot of knowledge to understand and just because we don’t understand doesn’t mean it’s not true???

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Too true. Too complicated. There must be some simpler thing I can believe instead.

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What exactly are results of not-so-good motor control? Cogging? Less efficient motor? Less efficient esc?

All of the above and more

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insert multiple years of college-level EE design courses

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Thank you so much for posting this lmao very applicable in this hobby

So this controller isn’t for the ESK8? Or to install it on an ESK8 you have to buy two, one for each motor!?

It’s originally designed for one motor, but people start picking 2 for esk8 and run them through CAN bus. But now Makerx has a version call 2G300 which is basically 2 G300 officially put together in a housing and they also wire them with JST ports so they can be used universal like other VESC controllers. The original G300 used a different port so you’d have to splice them to a JST extension and it was a PITA I reckon.

Ive had the displeasure of working with a couple of these controllers on esk8s over the weekend and i’d hold off on buying some for now…

What issues have you been experiencing?

Intermittent hall sensor issues where it wouldn’t see them, and one dud in a batch of four

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Dang that’s no good. My new 2G300 everything worked the way it’s supposed to, on the bench so far.

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Which motors were having sensor issues?

Same. It’s a shame there seems to be issues with some. I love mine.

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X2 mines been set and forget too.

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