I had my motor temp limit set to 85 C and was being throttled after about ~10ish minutes of riding. It was 75 F outside. I went back into the VESC tool and upped the motor temp limit to 99 C.
What is the safe max temp these motors can reach without being damaged?
I believe the general rule of thumb around here is if you can’t touch your motors, they’re too hot. 85°C is a fair bit hotter than that. I try and keep mine under 70°C, which is still probably hotter than I should run them.
I weigh 130lb, running 75kv, +/-80 motor amps per side, +60 -40 battery amps per side, and on a 32°C day riding at 25-30mph pulling around 15 amps per motor, I pushed the motors up to 80°C in about half an hour, but was able to cool them back down by riding slower after that.
When the motors are that hot, they start to feel sluggish no matter what the VESC temperature limits are, just because they’re so saturated with heat. It’s fairly easy for me to bring them back down to around 60-65°C by slowing down 10mph for a bit.
yeah, I definitely wasn’t able to touch them lol. I was also accelerating pretty hard.
my limits are (per side):
75Kv, 120mm wheels
battery: +50, -40
motor: +70, -70
it got really really slow when it started throttling to like a point where it would barely accelerate (it would get to speed but the acceleration was horribly slow - think slower than a single hub motor setup)
I really like how quiet the DDs for the power they put out, but I also can’t accept a lack in performance so I might switch to a gear drive setup in the near future
Literally the exact opposite for me. Sustained high speeds they’re completely fine but a few runs of hard acceleration and braking (city riding) and they start temp throttling.
Well, I was riding with my GF who have the Onsra challenger DD (same speed same riding line).
After a small hill (5 Degree) My TBDD motors get hot as hell and Throttling so much the board won’t move on flat without me on it. But the Challenger was just barely hot.
So What is happening @torqueboards?
My shitty Raptor 2.1 was performing better than that!
So guys, any advices about settings on VESC that can do this?
It’s throttleing after 1km on flat ride (some stops in urban context) going up an hill is just not possible, it became hot and won’t move.
VESC tool test? I made many motor calibrations.
You have some printscreen for help? Thanks!
Everything turn easy.
It’s just the Trhottling that occur so fast. Probably a VESC setup wrong
I need some people with Unity and TBDD and VESC setup printsreen
Just wanted to give anyone a heads up about maintenance. I’ve had the drives for just over 2 years now. I’ve been running them at 10s 70-80 amps the entire time with TB110 78A’s. I have loctited the axle threads after a user here detailed their experience with loose axles a few months ago. Recently one of my wheels was a bit clicky so I took the wheels off and loctitied the adapter screws as they had started to get loose. Other than these two things, rotating the wheels once, and oiling the bearings they have performed just as well as when I got them! I know there has been so issues with TB so I’m just trying to share my good experience and keep everyone running smoothly!
Happy and safe riding!
The starhead screws shown below needed securing. (I used a piece of tape to keep track of the screws I’ve loctited.)