It’s there new mode doesn’t need position senseless but what is not aparent at first glance is it needs a temp sensor. Just bad wording by frank.
Minimum requirement of most li ion cells manufactures is a temp sencer but there battry systems don’t monitor the direct cell temp.
Yet another example of trampa going agains what thay say when it suits them.
i don’t think any but me is bitching about it, it ain’t about the use of temp sensor, but how sensorless still require sensor, be it hall / as5047 or whatever.
if it doesn’t work completely without temp sensor, then its not sensorless, if it works semi-ok without temp, but depends on setup / motor or whatever, then as u said HFI already exist, why even bother with VSS
just my rant, don’t take it too serious, im still gonna use sensor until there is a true sensorless better than HFI comes along.
Because VSS is claimed to be better than HFI, only needing to utilize temp - allegedly
I don’t intend to use either, because sensors are still better, HFI is annoying and inconsistent to setup, and VSS requires (right now) a Trampa esc, I think.
ya, hardware for voltage filtering, and apparently something in the source code to work together
HFI on newer vesc architectures is nearly perfect and you can even start from a standstill up a hill, so yeah I’m not quite sure what place VSS has. Maybe if you have a motor with a fried hall sensor and a functional temp sensor? I know this is a possible situation but this push for VSS/ASS as a big feature is confusing as the use case seems very small.
Disagree, it’s too dependent on the motors themselves to actually work well
I won’t believe HFI is good until someone shows me one in person that works well. Sensors all the way for me
I do believe HFI is great for broken sensor setups, that’s what I did it on - for ones with sensors I don’t know why anyone would even bother
Come to New York then 
In my experience it’s super dependant on escs. Switching from a unity to a stormcore on the same setup suddenly makes the startup super smooth.
No tuning required btw. Just turned it on and smooth. I even tried it on my Evo, turned HFI on for shits and giggles and I was shocked.
It’s super dependent on the motors too. If you’ve watched the setup guide, you know this - the actual values matter
It is possible the esc makes a difference too, and that the motors on your setup were already good for HFI
I didn’t even know this was a thing. I just turn it on and it works well.
In terms of motors, I tried this with 140kv maytechs, 190kv flipsky and 190kv old flipsky/freerchobby. It just worked 
Must have been lucky then. Default setup with some motors is not even usable
Even after tuning with BKB motors smooth startup was not possible, it’s decent, but nowhere near sensors
Newer firmware may also contribute. I encourage you to take one of your boards with a vesc 6, turn HFI on and give it a try on 5.2.
I will try it at some point
Was running it on 5.2 firmware with 4.12 esc’s which were allegedly supposed to run it smoother
Yeah give it a try on 6 architecture. My experience with HFI on 4.2 was terrible too. Barely any better than sensorless.
Hmmmmm maybe that was it then. Idk I still love my sensors though but if they fail and it works well then it would be nice to at least have an option to fall back on
Right, so I am currently deciding what motor to get.
I am running a 12s8p battery, a stormcore 60D ESC, 12 tooth motor pulley, 45 tooth wheel pulley, 115mm wheels.
I don’t wanna go fast, but I wanna go uphill at speed, so high torque trumps speed.
I am pretty sure I wanna go for a flipsky 63100, the motor comes in 140, 170 and 190 KV. question is: as I understand Torque = low KV. So should I just go with the 140kv one?
Couple of things
My 2c; go for minimum 14T motor pulleys and 170Kv. If you and I interpret “low speed” differently your starting point could be higher again, say 190Kv and 15T. Also 63100 is imho overkill unless you want crazy torque at crazy speeds
I don’t think that was ever confirned publicly either; Frank sidestepped that question as well.
Unless I missed it.
This is true, however, I have noticed on countless occasions that once your motors get toasty, HFI starts working like shit, until they cool off.
I got 14 tooth with the motor mounts, so I might as well try those. Ordered the 12 tooth later - might give them a try and see for myself, but thanks for letting me know about that skipping issue.
30km/h are PLENTY for me. I doubt I will ride faster than that (especially since driving anything above 25km/h is technically illegal). I can always change pulleys later on, but I still need the torque.
The way I understand it: If the Esc can take the erpm, the higher KV motor is actually better, as it is more efficient, due to the thicker copper wire you mentioned.
Telling you right now, 14 T without idler on 190kv skips at like 80a even with good tension.
12 is most likely un-runable. Just not enough teeth for HTD5m belt