The board is running nice at higher speed but I’m experiencing cut outs at lower speeds. I’m wondering if anyone has a magical answer for me. The hardware I’m running is a dual Ubox 100v 100a, 20s3p with p42a, and Skyart 6485 125kv modors.
Here are all my settings per side
Battery: 45 amp per
Motor: 95 amp per
Braking: -85 amp per
Abs max: 135 amp per
Ramp up time: .15 sec pos and neg
I haven’t touched any of the other settings and I’m running current for the VESC remote. Thank you all in advance.
Edit: I believe it is the modor current with the Ubox that isn’t cooperating as I had this issue with my 14s build as well. Will report back tho. I set the new current to 85 per side for modor and -80 for brake.
Yeah, fairly confident it was just voltage protection due to having my discharge wired thru BMS. Was running 50 battery amps per side thru the 60a BMS.
Rewired to bypass discharge, and it’s been good ever since
Got it, I think I saw that in another post… Good to hear that you haven’t had any other issues with it. I just installed the 5.3 custom fw on a V1… It was the one that seemed to report the voltage most accurately, but since it’s new on old hardware I wasn’t sure about any real world problems…
From market feedback, the can is fragile, suggest you to check the motor hall sensor port, it has 5v input. and motor’s hall board is the weaker part , too
It will make a huge difference. Depending on the setup you may see 25 - 30C drop. For reference, I was last out about a week ago in maybe 4C ambient temps and my ESC was 28C max and 19C average.
Ive had nothing but issues with the v1 ubox, ngl. Their 100v ubox however Ive been pushing really hard and its been strong thru quite alot of abuse in subzero weather.
If there is no easy/reliable fix I will try using the ESC for something that does not require CAN communication. Like a winch for pulling people or a hovercraft/edf blower.
What’s the highest motor amps I can feasibly run thru a ubox v1? How high have you guys gone?
Just got a set of Reachers and want to run at least 105amps per side to try and match my previous motors’ torque… is this safe? Previously been running 90amps without any issues.
All good with this firmware version for V2_75V/100a Ubox?
Having some stuttering issues after running detection on new motors so thinking I’ll just start from scratch and update everything, not keen on bricking it or setting fire to another one… Currently on FW5.02
