Vesc4 and below couldn’t do 100% duty because of only two current sensors and the time delay between phases so it is limited to 0.95 or 95% duty in the software
The 6 schematic has 3 current sense circuits, but still cannot do 100% duty reliably. Even though the DRV supports 100% duty. That’s it.
Thanks a lot, that was a nice explanation. 
Just don’t call it a Vesc
Bimmer ESC (BESC)
Don’t they have higher erpm limit ?
The higher erpm is mostly because of the speed of direct fets…it’s why you can do over 100kerpm in the focbox… More then what any of us would need on esk8…
Not really… the best exemple (related to our field) is the Focbox as mentioned earlier, over 20% of failure strait from the factory, and they weren’t not event able to fix them (I know because they all ended on my desk). And they where able to find those defective, because the lead engineer from Enertion decide to put test jig in place, if he haven’t can you image how many people would have been disappointed (it would probably have been the end of Enertion).
Also there no Erpm limit in FOC anyway 
And that ^
Almost all historical failures seem to start as a “nobody would ever need that” many years earlier. Refrain from doing this
I’m not doing that… I’m simply stating…
The upside to spending the money on additional components over the 4.12 bom and having 3 current sensors would be 100% duty. But it’s not… Focbox and vesc6 erpm max is basically the same. Just add more aluminum to disipate heat I was saying apples to apples the erpm is based on the speed of directfets and how cool you run them.
Also I said never because 60v max. On a 260kv motor… On 14S is ~107kerpm…
I know I wouldn’t ever use a high kv motor on 14s…it’s not practical due to saturation.
Can you say in anyway an esk8 you would hit higher then 107k? @b264
I mean let’s think about it hubs are in the 10k-26k erpm range depending on kv
A mountain board that you could use the extra erpm with more reduction… Let’s take 14s as the max(if you had magura disc brakes and braking disabled on the esc) and a large reduction of 12/80 on 8" tires that’s still 54mph… On 7" 47mph. Dunno about you but mountain boards aren’t for speed… they need torque. So erpm is out the window there. Especially since you can’t run a big reduction with small tires
13s 190kv… Done… that’s only about 74k erpm… And about the max voltage… And will easily do 40mph…
How many more erpms do you need?
Anything faster and I’d rather be on an analog board.
Yeah I can think of a situation where I’d need more. I’m not going to say much about it other than think about different amounts of motor poles too…
Plus things that run more efficiently at higher RPM
28 poles ey? Whatcha making a stepper motor? …higher poles make less power at high rpm…your right more efficient but less power.
If your considering high rpm application with 28 poles and want power I’d suggest two wye motor windings and two escs on the same stator 
There is still a certain application that needs more. But I don’t want to reveal what I’m thinking. All I have to say is “you’re too focused on there being a motor”
… The only other thing with 3 phases is a generator…which is the same thing as a motor… but it generates power instead of using it…
You gonna make a windmill? …hand crank computer power supply? Bike as a power wall charger?
As it turns out my wife’s opinion on go big or go home is not the same as mine. The family treasurer has given me permission to make 50…and wait a month to see responses. This is not a group buy I and am going in 100% self funded I’d like to gauge Interesst at 150$. No EU shipping. It would be. 1 x Bimmers-foc-esc hw6.4 70mm awg 10 power wires xt-90/xt-60, awg 12 60mm 4mm bullet motor wires 1x Aluminum case 7075 1x Cover for said case I’ll have these made and will test every single one for motor detection, uart ( bluetooth) , sensors and ppm. They will have nrf but it will be untested.
When you say
…why specifically EU?
If you are making these, what is the maximum voltage you will allow under the normal condition?
Oh short shipping and response time also lower shipping cost incase of rma. Basically this is a test and if something goes wrong 5.60$ shipping sounds better than 18$ ontop of refunding someone or replacing/fixing something.
…except for the fact that the FOC box isnt based on(last i checked) the new hardware but the old. basically 4.12 with some direct fets and makeup on. From what I know the components used arent top either…Just to clarify, I’m not saying it doesnt work. I’m sayin its two entirely different products as whole, even tho one showcases as the real deal.