ERPM Limited Braking & Reverse Discussion

I was going to say the only risk is if you exceed that you have no brakes but I guess you could just go forward lol

The thought did occur to me, but I don’t see any issues.

In some freak scenario where I’m hurtling backwards down a hill at -15k ERPM, I would normally hit the throttle forward to ā€œbrakeā€ (eg giv it gas).

I don’t see any risk here, but am I misunderstanding something?

No I think that’s right. Because it’s full current mode, I think that problem would only exist in other modes

I’ve never tried though.

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Pretty easy to try. Small hill on a thane board, low erpm limits

This isn’t true, at least not on 6.02. I tested it first thing after enabling the limit. I set it low enough so I could over speed the board by pushing and tested the brakes in reverse (which is applying forward throttle) and everything worked smoothly and properly.

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Right which is what I said in the second half of the sentence haha

It’s not ā€œbrakesā€ in the traditional sense, it’s just fwd power.

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Gotcha, reading is hard :joy:

I believe I tested pushing the throttle both directions while over the eRPM limit, but I can’t remember the results. I’ll have to try that again sometime

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Are these the only settings needed to achieve what you’re talking about? Besides turning on current mode obviously

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Yeah you just need to set both sides to the reverse erpm limit.

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I think I’m gonna do this on my new hummie build and see how I like it. Smart reverse wasn’t working properly for me anyway

I’m sure you and @jack.luis already know not to do what I did… but I initially had problems with ERPM limit because I accidentally wrote my slave side ESC to be ppm control instead of ā€œoffā€, because I was mindlessly applied the same settings to both sides. It worked but had serious chunka chunka gremlins. The gremlins went away once I did things correctly and set both sides to limit at 10k ERPM reverse.

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Gotcha lol yeah I always do a re-read before changing things so I think that’ll be covered. Seems like a great method though and I don’t think I’ll have braking traction issues on my stretched skps

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The mobile version of vesc tool fixed this as it reads the settings after switching can devices :wink::kissing_smiling_eyes:

Too bad it sucks and it can reset your esc on accident :upside_down_face:

I’ve programmed a few ESCs and always used the mobile tool. Never had that happen.

We are never going to agree on this

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You don’t agree that it never happened to me? When was the last time you tried it and had an issue?

Couple weeks ago another user completely bunged up the esc within seconds. Still don’t know how they did it

PC better. Is what I meant we are not going to agree

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So it must be the mobile tools fault?

Yep can’t do that on pc, you have to actually be intentional

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