Vesc brakes help

Remember also to change your min / max Erpm to 60.000. With a dead / defective DRV chip, you also get weird behaviour

ok now i hae the erpm to 60.000 but still the same behavior … im pushing the throttle really slow to the first position where the motor starts spinning and it will start accelerating to the max … i was on the realtime data that my erpm it going to 52.000 …

honestly im expecting it to accelerate when im pushing the throttle more not accelerate on it.s own ?? am i wrong ?

I think there should be seperate tab to see what, your remote does (what signal vesc receives)

So if u can u might as well check that, though.im still an outsider with vesc, but that is what i would look for.

I think you’re referring to the display window in a few of the Application tabs (PPM in this case). Here:

@Bloop It looks like the checkbox next to “Display” in this screen shot is unchecked here. I didn’t see any comment indicating you’d done much with that box, so can you check it (click it) and do a test (maybe take a video and upload it to youtube or something so we can see it) of that bar when you’re slowing going from the middle of the throttle, up to the top, back to the middle, and then the same to the bottom?

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Yep, this is to what I was refering to :wink: @rpn314

I wasnt sure he knows about it, so I thought it is a good idea to take a look at it.

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i did check that forgot to update the picture. Here are my new values.

I will make a video shortly so show what i mean …

That’s fine. I wasn’t worried about the screen shot, just wanted the video to try and help :slight_smile: Checking it doesn’t change anything on the VESC; it just displays that info in BLDC tool. It’s quite useful for issues like this. Awaiting your video :nerd: :popcorn:

Does your motor have hall sensors? It say that hall sensor detection failed. Run the detection again and do the read/write configuration and reboot.

I’m surprised no one mentioned that this is expected behavior. Current control mode will always ramp up to full speed of it overcomes load. Bench testing will always get you max speed at low throttle since there’s virtually no load. Same for braking. You’ll see much different behavior when you actually ride the board, but the speed will still not be throttle dependent.

Remember, the throttle controls acceleration, not speed.

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i have no sensor

oh i see now. well so even when i will ride it . it will eventually accelerate to max even if im only pushing a little on throttle ??

is there a better more so it will maintain my speed unless i push further the throttle ??

It depends on load, if you only push a little bit while you’re on the board it will probably maintain a slow speed because the current supplied isn’t enough to overcome load.

there are modes where throttle position determines speed (duty cycle/pod control), but it also means when you let go to neutral it will brake and slow down since you’re technically moving the throttle back to resting position (complete stop)

Current control is the “better” mode, you just have to get used to it

when i tested the current control i had trouble breaking … but yeah i guess if i get used with it will be fine. i will do some more testings tonight and come back with updates. thank you .

What trouble? While you were in the board?

Yes while i was on the board. sometimes it was no breaking/moving backwards. i was accelerating and then break/throttle back and it would not respond … then when i stop and do reverse it would go reverse with no problem … i have no idea what happened then but after that i changed back to no reverse with break

Ok new update once i tested again.

Everything seems to work just fine with me on the board the break and the acceleration. Thank you @Jinra for all you help.

I tested now with both no reverse with break and current mode and both are working good. Altho im a little scared to break when high speed.

I think ill use it in current because the break is easier to control.

Sadly the rain ended my happiness so i had to stop for today. If anything else comes up ill update.

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I think someone mentioned it above, but give @Ackmaniac’s firmware a go. I think you’ll like the throttle curves

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i had no time to read about that and i dont understand if that is to be installed on the vesc or is just like bldc tool … i will read about it and check that out :smiley: tnx

Definitely read about it. It’s basically a custom firmware to replace the firmware that’s on the VESC and a modified BLDC-Tool to configure it. It’s based on the originals, but @Ackmaniac has done an amazing job and added some very good control features (throttle curves for example) that make it much more intuitive and natural.

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I tested the button that is supposed to change the mode beginner/advanced but i see no difference in speed or acceleration with button up or down ?

Do i need to make anything else ? (i read something that is on reverse from the specs down is high speed and up is begginer)

Thank you.