My tiny 5055 motor cuts out when I break hard, 38A/-35A,
Itâs weak, should I lower the breaking power?
Asking for a new girl I just brought here. Who has a build they consider to be a race board? Show yourself
@aliceshi010
you so cool man, I love your passion, I canât wait to get more comfortable on my board!
Itâs probably not the motor, but either your BMS or vesc thatâs cutting out.
What are the cool kids buying for remote thatâs got a thumb trigger
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Not exactly. That will help too, but what Venom121212 is talking about is basically a control for, if you mash the throttle from 0 to 100% instantly, how long does the signal take to do the same thing? By default itâs pretty much instant - you mash the throttle, you get 100% torque RIGHT NOW. You can add a delay, so for example it takes 1 second from when you mash to 100%, before the motor gives you 100%.
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I guess this is the right thread to ask something dumb:
Could I connect one motor to a dual esc (cheapo 20-30A total thing) on both connections to get the full current through the ESC?
Why?
From a practicality standpoint itâs technically doable (no laws of physics being broken) but I think youâll have lots off issues making it actually work with IRL hardware because itâs not designed for that.
To make it work properly youâd need the ESCs to communicate with eachother to switch in sync.
Itâs a dual esc on one pcb, not two separate ones. Likely the ESC
If the motor is not sensored, it should not be a problem - it would just receive double the current, right?
If it were a brushed DC motor, then yes that would be true and it would work great.
But it isnât a brushed DC motor, itâs a brushless DC motor. Which means the ESC itself has to do all the timing-critical switching/commutation.
Think of the motor like a swing set - The ESC has to know exactly when to âpushâ the motor for each phase or the motor wonât spin smoothly. Now imagine two people on opposite sides of the swing set trying to push in sync and not being able to see or communicate with each other, and you see where the problem lies. The controllers have no way to be in sync with each other, so theyâll fight eachother instead of helping eachother.
(Even though there are two ESCs on one board, they donât communicate with each other other than throttle and brake signal, so they will behave just like two single ESCs.)
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Thanks for the precise answer!
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I am bypassing bms for discharge and I just got a new VESC
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@onebluesummer Exactly. Unity ui has something called positive ramping time that does what @MysticalDork is talking about.
Adjusting that throttle acceleration curve will help make it feel not as punchy at start up.
@torqueboards i have the felling that the Magnet retainer ring is coming loose again after you epoxyd it down half a year ago. The right Motor specifically makes a weird sound. If i turn it by hand it sometimes rattles exactly like the first time. But Sometimes it doesnât. Should i open the Motor and check it/epoxy it myself?
Any guesses as to what the âsafeâ settings would be for this battery in the motor setup tab, things like motor max amperage, etc? Iâm using a dual motor setup
Itâs so hard to find a straightforward answer on how to calculate that stuff and usually any explanation doesnât confirm whether or not the recommendations are for a single or dual motor setup. I really donât want to fuck up a $300 battery.
@ADrum707 Youâre gonna need to find out what cell it uses. Canât figure out amps with certainty without knowing this.
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