Hello all!
I have a china escooter (kugoo g booster)
and wanted some more power from it,
i bought 3 Flipsky's 75100, one for any bad case but all went bad... checked the fets and from 6 fets 3 were burned...
one motor has 1200w peak, it has 2, sensorless
-config 2 vescs via can, and a bluetooth module
50 amp max per esc
absolute watt 2000 per esc
absolute amps 85 per esc
battery 62v (67.2) 29.8 ah
brake amp 0
i only used throttle, no e brake
i started slow, everything ok, power was so much better, like an awesome e scooter, under the vesc tool on my phone it showed the motor was sucking more than 2500w, (or that was both of them?)then i accelerate more to 3200w
tho, the limit was 2000w... after i got 65 km/h the back engine made a huge brappp sound and braking, i knew it, the fets are gone...
tried only one engine, same results... what should i do no one explained clearly,
for the moment i got an ugly 24fets esc
are the motors to weak? and that causes spikes to the esc?
How was the throttle wired to both controllers?
At high RPMs, fets are usually killed due to voltage spikes.
NextGen FOC High voltage 144v/34s, 30kw (https://vesc-project.com/node/1477)