I am completely stumped.
I have 100mm Meepo hubs connected to two Flipsky 6.7 pro Vescs, the battery is a used meepo 10s2p i was given.
The motors start a sort of cogging / stuttering sound when given full power, it starts at around 70% throttle and is worst at 100%.
Previously I was using a used Meepo esc which was doing all sorts of weird stuff, no matter the phase cable order.
It didn’t matter how they were sorted, the motors would always spin backwards.
I could ride the thing once but it was making quite a bit of noise.
Anyway, so I got vescs, thinking my issues would be gone but oh no.
Yes, they spin forward now but the noise is not better.
I thought maybe the bearings were the problem but I changed them and it is still the same.
It doesn’t change anything when I run the motors with sensor plugs unplugged.
So, new controllers, new bearings, with or without sensors, they sound a bit like a phase closure if that makes any sense, like it is fine until the motors get a bit more juice.
Motor amps are set at 40 / -40, battery amps is 15 per side and -10 braking.
The battery is older and of unknown condition though it is „smart“.
When the motors start their stuttering the green leds on top of the vescs flicker.
The cables are ok, I had to make them longer but that can not be the issue.
I‘m using 4mm bullets inside the top box, the better ones without the turnable rear pieces.
All solder joints are double checked, they are ok.
I had very similar issues trying to get two different sets of hub motors working on a Fsesc 6.6 mini.
Was getting wildly different resistance and inductance numbers on back-to-back detections.
Amazingly frustrated,
I gave up, for now, and installed an Ebay lingyi esc.
Motors are basically silent again on this reviled esc, and I do not want to try vesc again until I have a fast enough back up board ready to ride.
I will be following this thread.
I suspect my previous issues, in addition to major Vesctool skill issues, were using mt60 to Mr30 adapters on phase cables, and potentially receiver interference as I had the built in vx1 receiver’s antenna resting on an esc capacitor.
I’ve got MR60s on phase cables now on both the lingyi and Fsesc6.6 and hub motors, but wanted to ride asap, and just installed the Lingyi back in, as I know it works, albeit twitchy and jerky.
The lingyi was the emergency backup esc, so I am feeling some stress should it fail, as my backup board is also down.
I’ve no faith my hub motors can work properly on Vesc, and have not refound the gumption to FAFO, and am considering another newer generation Lingyi or Hobbywing esc branded by meepo or backfire or Puaida or exway, but have found little info available to make an informed choice.
There a little dude trapped in the motors trying to get out
No fr tho, sounds like there could be a short inside the motors. I used to have similar problems with drone motors when I got a bit of magnetic metal stuck in the inside. That’s my guess at least
i had exactly the same and had a whole thread trying to fix it
Unfortunately all videos are gone but i can assure you it was exactly the same. I need to read the thread again as i don’t remember what ended up “fixing” it.
I was also using Meepo 100mm hubs on a Unity. (which i still use but without that “cogging”)
The typical question: Duty cycle is set at 95%?
What is your Duty cycle current limit start set at?
Does it also happen while riding?
Just came from a ride with the hubs and then i remembered the issue again.
So it never went away essentially but it doesn’t happen while riding. I believe it happens when you hit the duty cycle limits while on the bench which you (never?)) do while riding. Loaded vs unloaded.
In the 1500+km on this board i never had an issue. I max the throttle on every occasion.
I have the never version of the v3 motors. Yours are v2? Or early v3? I love mine. So quiet and absolutely take a beating. I’m sometimes pushing up to 65A per motor when i feel funny. I’ve taken them through rain, snow, mud, gravel, everything and they just won’t die.
I have no idea which version mine are but they are powerful and smooth.
I have them set up with 40a per motor and they feel quite fast
Only the battery is the bottleneck but that’s a problem for another day.
