Nanjing far driver controllers

[Jacka98]

Does anyone know what "LimitSpeed" does? It doesn't seem to limit any speed

[h0tsauce]

Does anyone know what "LimitSpeed" does? It doesn't seem to limit any speed

It definitely does limit speed; I've used it to do so. However, the RPM for a hub motor is off by a factor of 4. I posted a comment earlier in this thread detailing how to use this parameter to limit your top speed.

Edit: at least I think it did. Might have been on another forum

[h0tsauce]

Does anyone know what "LimitSpeed" does? It doesn't seem to limit any speed

Right, so if I'm remembering correctly, you basically put your tire diameter and the desired speed into this calculator.
https://www.omnicalculator.com/everyday-life/rpm
It will give you the corresponding RPM. If you're using a hub motor use the tire RPM result, but multiply it by (probably) 4 to compensate for the fact that the app is kind of built to expect a mid-drive motor, and enter the result in the parameter. There's
more about pole pairs in the adjustment instructions PDF that can be found at the Google drive link shared several times here

[senlin]

If you dont ground either low or high you end up in mid..
With my controller I got a bridge you could use to ground the high pin to be in high all the time, if you dont want to use a 3 speed switch.

You are quite correct. I have done some testing and my throttle is definitely governed by what I set my mid value to. The good thing is i can play around with the rpm limit of the mid to set a 50km/h speed limit so I can get my bike registered as a moped. Just need to play around with different RPM's till I get it matching 50. I have done some testing, tried 1000rpm, it was funny, accelerated as good as ever then just stopped at about 10 km/h and put putted along.

[credendario]

hello guys i need some help as i said
I'm attaching everything I have now
I would like to go 10km/h faster
and activate reverse
thank you all

[h0tsauce]

hello guys i need some help as i said
I'm attaching everything I have now
I would like to go 10km/h faster
and activate reverse
thank you all

Regarding top speed: your max speed setting is high enough that is almost certainly physics that's setting your top speed, not the controller. For example, my 12kW motor pushed by a 72V battery with an 86kg rider on a 24°c day has a top speed of around 153kph. But when I weighed 95kg on a 15°c day, my top speed was only 138kph.

[credendario]

the problem that does not go beyond 115 km per hour
forgive me what is the parameter to increase ?
Thank you

[h0tsauce]

the problem that does not go beyond 115 km per hour
forgive me what is the parameter to increase ?
Thank you

You need a stronger motor or higher voltage battery. There's no parameter you can increase that will change physics.

[credendario]

but how is it possible that with a motorcycle with a 5000 watt motor and a 72 volt battery it manages to go 120 km per hour
And this doesn't even come with a 10,000 watt motor?

[SlowCo]

but how is it possible that with a motorcycle with a 5000 watt motor and a 72 volt battery it manages to go 120 km per hour
And this doesn't even come with a 10,000 watt motor?

Gearing?
What rpm does your mid motor actually have at top speed? Can you go with a 10-15% smaller rear chain wheel / belt pulley?

[Dui, ni shuo de dui]

hello guys i need some help as i said
I'm attaching everything I have now
I would like to go 10km/h faster
and activate reverse
thank you all

That sure was a pain in the butt to read on a big screen, these images are way too big!

I think you did not enable flux weakening, which is named "WeakResponse".
Usually enabling flux weakening helps a lot with top speed, so try this first.

[credendario]

hello and thanks for the help
I tried to change that parameter but nothing
Reverse gear also doesn't work
I'm afraid it's the firmware blocked by the parent company
I'll have to find a new firmware

[minde28383]

I doubt its firmware issue.
For field weakening to work have to you tried 1,2,3 modes? Are modes activated? There is eco and sport modes. Have you tried to change, set sport mode. Sport and eco probably it is more to do with throttle response or amps ramp up.
For reverse you need to short two wires. There is dedicated plug/connector coming out of controller.

[j bjork]

It dosent look like you have activated reverse on any input?
What rpm do you reach?

[SamRich]

I have a ND96530. Running a 24s battery which mean max voltage of 100.8V. Had to set nominal voltage to 79V in order to get over voltage protection to show 99.8V. They definitely have some serious series# to max voltage calculation issues. This now show my model # to be 79530.

Okay so nominal sets overvolt. The question is whether overvolt sets regen protect volt too...well i'll check it soon i guess...

I had an issue where regen wouldn't kickin unless I was below 80V. Turns out you need to change the Full battCoeff under the PROTECT section. I had adjusted the Full battCoeff value initially to get a better gauge estimate for battery capacity but apparently it was too low and messed up the regen.

I increased Full battCoeff from 1100 to 1300 and regen worked at 84V!

[Sattva Ram]

Hmm thank you. This is great to know. However you dont want it to work at 84 cause it'll blow your mos if the bms shuts off...(unless you have split port but none of the good bmses use split these days i wonder why not tho to prevent such situation). I'd totally put it back to 1100 tho or thereabout if i was you. I'll try to fiddle with it and see if it worx. I never even really fully charged my battery so far and regen as weak af but i was very afraid of blowing the fet with the FD. I just blew a votol cause of too strong a regen and an improperly set regen protect voltage...anyway i think i'll sell the FD and go with the votol so it doesnt really matter anymore.