Topic name change edit: I guess I burned my DRV chip, question is why. I was doing some testing (probably dumb), I was slowly rolling backwards on my board and I was pushing the throttle and brakes to see what will happen, first few times it just seemed to help roll backwards faster when i pressed throttle and brakes worked fine. Then boom and no more response from remote. After a restart it tried to move a bit and then again nothing. In vesc tool I get the FAULT_CODE_DRV, when I try pressing the throttle. But I get no red flashing led on the vesc or anything, it lights up blue as per usual, just no bright green led when I press on the throttle.
By the way, the original issue was simply me not having enough motor amps to push my fat ass any faster than walking speed. Even with 1:5 gearing 30 motor amps werebasically nothing…damn some one needs to go on a diet.
First tests of my “board” on the way, and a weird issue presents it self.
When I am off my board and give it some throttle, it does a burnout. All good there.
When I get on the board and push off for a rolling start and give it throttle it has absolutely no power, throttle at full, rolling at slightly above walking pace, motor running pretty damn loud and vibrating. Then if I get to accelerate a bit more somehow, the sound changes becomes smoother, sounds like when the board is going on its own. And the throttle appears. I did not push it above this “crossover” point much because I am a noob rider and it feels like it can rip the board from beneath my feet if I give it full power.
As I understand, the vesc is running at a duty cycle mode at low rpms and then switches to bldc. My question is, why the hell is it so severely underpowered at low rpm that it barely accelerates? Anyone know which setting governs this? Perhaps the minimum ERPM limit (one of the three detection settings)
Stats, sry I do not have how to log my data currently.:
Voltage during testing ~40V, vesc cut off start at 33 end at 30 Motor amps 60, Motor breaking amps -40 Battery amps 45, braking battery amps -20
edit: I increased motor amps and battery amps significantly before this test since I thought it was the reason for no power… I was wrong.
I can post full settings later when I am home
edit2: I have another weird issue, when vesc is connected through USB I can not move the motor with the arrow keys anymore. It worked before, then after latest motor detection It does not respond anymore, it just clicks in place, no current goes through, even if the settings allow for a lot.
edit3: I get a lot of abs overcurrent faults when using my remote to give throttle… read that this might mean a bad DRV chip? But how come it"kind of" works then