today I rebuild my esk8. I made new deck and battery case. But when I put all together I tested motor. It was working until I push throttle to max and after I pres brake my DRV8302 on vesc burn out. Can anyone tell me why this hapend? I was using this setup last year and it works like it shuld. And I dont want to this hapen to nev vesc so I need solution why this goes up smoke.
Vesc in warenty from hobbyking. I hope they will replace it.
I dont have any short in motor wires for shure.
Setup is 12s lipo and 230kv motor.
Is it possible that the reason is becuse I spin it to max and hit thr brake?
And one more thing, I have BLDC enabled from the begining. With this setup with no cheanges I made around 400-500km with no problem, but top speed under 30kmh. Over 30 is tooo much for me
So, when you are braking at max speed, the motor produces a large voltage spike(back emf+inductive spiking). This is used in regenerative braking to charge the battery. At max speed with full brake produces a large voltage spike that the DRV can’t tolerate. I hope I made it is easy enough to understand, but there is lot more to it.
Use this calculator to get your max erpm.
Get a focbox or vesc 6 if you want to run a setup which get higher than 60000erpm and this will not happen anymore
I have new vesc v4.12 with firmware 2.81 from hobbyking.
One question. On previous vesc which I burnd I use foc. Now I dont want to burn this one too. So my question is should I use foc or bldc on this vesc?