Cut out during acceleration

DIY Builds
#2

Any chance you hit max duty cycle limit? (75% or so would be oddly low)

#3

What remote are you using? I had a similar experience recently, turned out to be the PPM plug wasn’t fully seated into the stormcore, I now dowse my ppm plugs in hot glue after insert

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#4

I doubt it, I was barely hitting 30mph, I wanted to hard accelerate when it cut off, trigger wasn’t maxed

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#5

The maytech v2 and it’s on ppm, I’ll glue mine down tomorrow, I hope it’s that, just about managed to control the wobble

#6

The dual trigger? It’s highly possible that you ran through an interference area

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#7

What FW? When I switched to 5.3 under heavy acceleration I cut out too and went flying. I turned on the Slow ABS current limit tab. Can’t remember where it is but I can look when I’m off work computer. It seemed to do the trick for my problem.

Edit: Found a pic on this site:

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#8

Anyone have details on all the ways to avoid over-current shut-offs? I keep getting them running a single vesc6 on a bike.

I put max wattage at something like 99999 watts but with hard throttle it’ll still happen.

3 Likes
#9

Sounds like it’s a common problem with hard accelerating, weird but the drop in motor amps gave me the wobbles, rode it today but no way am I going to push it hard

#10

I doubt it, I ride past there all the time

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#11

Hm okay, well it was worth asking, that behavior is exactly what happens during my remote cutouts

#12

I’ve seen it in the settings but I don’t know what it does, anyone else has this set to on?

#13

I had the same exact problem with the same battery and the same Vesc with firmware 5.3 the other day.

Was going from a standstill to full throttle, and the board stopped suddenly accelerating at something like 20kmh. I went face first into the floor.

I’m now scared to go full throttle, and have avoided since. I lowered the battery amps to 95 instead of 100 and although I haven’t had the problem again, i think it’s because I haven’t gone full throttle yet.

I will look into this as it looks promising.

Also, do you have sensors? I also disconnected my sensors after this and had no problem

#14

I’m too freaked by cutouts to utilize the full potential of the Vesc. Anyone know all the possible ways to avoid them? I thought it was as simple as increasing the “max wattage” limit to 9999 or something but that didn’t solve it.

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#15

I had some issues like this and increased ABSOLUTE MAXIMUM CURRENT to like 400amps (or as high as possible) which seemed to help (not ALL the ways, sorry Hummie)

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#16

Thanks, I think that’s what I did, increasing the max current to whatever u can put it to and it still will cut out though

#17

I’m still sensored

#18

What’s causing the cut outs tho, it seems to be trigger based as in amps are low, battery voltage is still within limits, don’t make sense. I cruised to work today, definitely didn’t feel brave enough to go fast

#19

I’ll check fw

#20

i’ve had vescs cut out and cause wobbles of death both on a ubox v2 and trampa vesc 6, both of which i tried heavy acceleration close to the max speed of the board. it usually cuts out on the slave vesc, believe it may be down to overcurrent protection

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#21

Can you check the Faults log from a ride logger like METR?