That on the Unity?
Yessir
Please really thoroughly analyze wiring etc.? What remote and app settings are you using?
Seems like that behavior would have been pretty noticable and reproducible on the bench so my money is on funny wiring.
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I went on ~14 mile round trip to my grandmaâs for Motherâs Day. First extended ride on Unity FW Beta 5.2. Very pleased with the results, no issues at full throttle for extended periods but I switched to an unlimited speed mode (No ERMP limit).
That behaviour to me says cold solder joint on one or more of the phase leads.
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This board has been running for over a year as my main board with no issues like this.
@deodand no changes in wiring, havenât opened the enclosure in months even. Popped it open and all wiring looks good. Bullets all seated firmly, xt connectors as well, no phase leads exposed (staggered lengths of joints to be extra safe).
Remote is the maytech V2 waterproof split trigger remote. What all settings would you like me to post screen shots of?
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Also trying to real time log the motor stopping issue as itâs repeatable at 95% duty cycle but it wonât allow me to find local folders on my phone as writable spots even after allowing permissions.
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Definitely something weird going on. Yeah if you can get some data that would be helpful. Is it reproducible under no load still even after you checked wiring and the motors cooled down?
Yes. 100% of the time. Brake issue as well though its on the same motor side (left).
Touching that wheel/motor at all while holding brakes causes the brake stutter.
Now Iâm getting the full stop on the motor even at 85% duty cycle. Dropped it to 75% and itâs gone.
Itâs refusing to restore my backup configurations.
Let me re-give it all permissions.
Threw me some errors about firmware not being correct out of nowhereâŚ
Reboot cleared it up and itâs connected again fine and says FW is fine.
Screen recorded 85% duty cycle real time stats while accelerating slowly and quickly. The quick accels are when the motor fully cuts to braking (not free roll)
Going to have to take a look at this tomorrow, got to head to see my momma 
Seems weird it wasnât doing this before and now it is consistently. Sound like something physically changed since the code hasnât. Did you re-run motor calibration?
Have you checked the solder on all the bullets? Some times a cold solder joint can last a really long time and finally fatigue and fail. The bullets on the unity are the first thing Iâd check, those were ordered pre-made not soldered by the PCB factory and we found they are not always soldered consistently.
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Maybe try reverting the code to the old version and see if it stops?
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Yeah. Thatâs also a great idea.
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Definitely understand. 200kv motors, 10s battery, 90A motor limit, 100A battery limit. - 70A max brake, - 35A regen brake.
I didnât rerun a detection yet. After trying a run up and down the block at 85% duty cycle, everything seemed fine.
It was running fine for about a mile but I could feel the weaker acceleration. Thatâs when I changed both motors configs up to 90% and hit the issue immediately.
I will check all the joints tomorrow but I considered reflashing unity 23.46 FW just to see if there was any weirdness or if everything was back to normal. Any reasons that wouldnât eliminate physical issues? Seems like a quick test. I could also rerun motor detection wizard and try and force the issue again.
Let me know what you think is most helpful tomorrow. Tell your mom I say hey.
Yeah if it runs perfect with the old code would be a good sign something funny is going on software side. Could just be a bad calibration I guess.
It looks like you are just setting a duty cycle limit and not the new current rolloff percentage?
I changed this setting in the mobile app:
Following this suggestion:
What else should I have changed?
Those are two different settings, the new one is listed at the bottom of that list I think
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Just the bottom one. The other one should be left as is.
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