Best VESC settings for li-ion 30Q 12s4p and dual 6374 190kv motors?

ESK8 Electronics
1

Hey everyone,

I am about to set up my dual focbox vescs (via cambus). I have a 12s4p 60amp SuPower (BMS), and dual 6374 190kv motors.

I want to make sure I set these correctly:

Motor Max, Motor min (regen), Batt max, Batt min (regen), Absolute max

Also if you have suggestions for:

Minimum input voltage Maximum input voltage Battery cutoff start Battery cutoff end

I want to be able to have good braking for going down hills. I will also use BLDC but might try FOC mode in the future.

Thanks for any help, I have searched up and down the forums and people seem to be varying their opinions for these settings. (I have my own opinions but I don’t want to influence the decisions.) :wink:

Thanks everyone!

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What cells are you using?

3

Is this your first board? Do you have a Bluetooth module to easily change theses settings?

Here’s what I’d start out with: Motor max: 60 Motor min: -60 Battery max: 30 Battery min: -8 Absolute max: leave it alone, I think its 130

Minimum input voltage leave it at 8 Maximum input voltage leave it at 57 Battery cutoff start: 36 (3 volts per cell) Battery cutoff end: 33.6 (2.8 volts per cell)

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So motor max, min, batt max, min, and what else need to be split along two vesc? What does absolute max do?

5

I gave those settings per VESC. Only battery max and min need to be split. Absolute max I believe is just a cutoff point, if you exceed it you’ll get some error like: abs_over_current. All I know is that it should be left alone at 130

6

Oh I swapped motor and battery in my head. I see that now.

7

30Q Samsung.

8

This is my first board, but I am a pool skater and I am used to the speed and have good board control. I wonder if I should put the battery cut off a bit higher, around 41V or 40V. I think that might be safer? I had it at 20% when I built the battery and it was around 41V (3.41V per battery).

9

You can set the battery cutoffs as high as you’d like, you’ll lose range while gaining some longevity of the pack.

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What settings did you end up going with?

11

I didn’t post this, but this is what I am running on my 12s4p with 6374 170kv motors

It would be interesting if people gave suggestions for me as well

image

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edit: sorry. I thought it was 10s

recommend cutoff start arounf 3,2v / s and end around 3,0 / s

Motor max 70 Batt max 30 per vesc if dual, depending on BMS discharge? Motor min -40 Batt min -10

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I have a bestech charge only running Samsung 30q in a 12s4p

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How’s this working for you?

Wheel size and gear ratio?

15

Well, went on a 24 mile ride and everything was good until one of the motors got jacked. image

I went with cheap motors dickyho was selling. I have since ordered some janux 6374s. Waiting for those to come in.

I am running 15/36 gear ratio, and my old motors were 170kv, the new ones are going to be 190kv

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Hey man checking in since you changed out your cans.

I’m also running a 12s4p with dual 190kv motors.

Any changes to your settings?

17

Yes, made a few adjustments, changed the 40a to 50a. If you want to run hard you can change that to 60a and it will be insane. I’ll get some screen shots later

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image image

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Hi Jason

i would like to have advices about my Vesc setting with VTC6 sony li-ion battery it’s a 12s4p 12AH bms charge only

i have an orrsom board from Trampa with two 6364 154Kv motors i would to know the setting for :slight_smile: MOTOR CURRENT MAX : ? MOTOR CURRENT MAX BRAKE : ? BATTERY CURRENT MAX : ? BATTERY CURRENT MAX REGEN : ? and also about : Minimum input voltage Maximum input voltage Battery cutoff start Battery cutoff end

Thanks a lot for for advices i realy don’t want to burn it all :sweat_smile:

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Sorry for the late reply. Been off the forums. You can see my last settings on this post for a similar build

https://www.electric-skateboard.builders/t/boosted-xl-boosted-board-deck-evolve-tb-trucks-janux-motor-mounts-the-eboosted-enclosures-dual-focbox-janux-6374-190kv-motors-12s4p-samsung-30qs-with-bestech-bms-enertion-nano-x-2-4ghz-remote-metr-at-bluetooth/67046/44