Ello everybody.
I ride a full Trampa Urban Carver monster-box build, which i got all the way back in June 2018, just with an added wand 2019.
2VESC6, 263xx 154kv motor, 12s6p li-ion Sanyo 20700B cells, no BMS.
Nearly driven 14000 km on it all together, and worn down 4 sets of tyres - no problems at all.
Yesterday while i was out riding, my board kind of freezes during a little acceleration, and then stops responding all together, bringing me to a slow stop. Dis-reconnecting my anti-spark to the VESC’s does nothing to bring back the board to life, and the WAND remains unable to see the BLE module. I’d barely made it 300 meters from my home when this happened, so luckily, not a long walk home.
Coming home, i see my main VESC has no lights in it. Nor can i connect it to the computer via USB.
Taking the VESC apart, it looks like the DRV’s could be fried.
Checked all phase wires in the motors - seems to be working fine.
I did just splice all of the wires from the hall sensors, 3 weeks ago, but these cables are all still well insulated from one another, as far as i can measure.
Could this be related to, maybe, the anti-spark switch not being plugged all the way in, resulting in some under/over voltage? Or some other issue related to the anti-spark switches? I didn’t get to check for this exact issue out on the road, since i panicked ever so slightly - but it’s one of many things which could be the killer.
I’ve never had break/use currents set above the battery-limit, nor charged the cell’s above 4.10V, to have a buffer for breaking.
Never been a fan of BMS, since they’ve been known to shut off during different charge/drain situations and kill VESC’s.
Anyone who knows if it’s even possible to repair?
@Trampa Frank, do you have any ideas, where i could’ve gone wrong?
Cheers