Setting up Eggrider with KT controller + AKM 500W

[jetzki]

I've just receive all my ebike stuff and am in the process of setting it up. I think I've mostly got my eggrider set up how I want.
However I'm a bit stumped on what to fill in on the Kunteng settings page of my eggrider settings. Can anyone help with this?
My PAS sensor has 12 magnets on it, but in the options I can only choose 0-7?
Motor speed demultiplier is supposed to be figured out with some math from the number of magnets in my mother, I have no idea how to do this.
Wheel speed pulse signal, I went through all the options and tested the motor, I couldn't really tell what difference it was making.
Assist mode Speed / Torque, I chose torque. It seems like it goes a teeny bit faster.
Phase codification, absolutely zero idea what this is.

I did read the KT display manuals to try and figure out what those settings do, but honestly don't understand them.
Any help would be appreciated!

 

[E-HP]

I've just receive all my ebike stuff and am in the process of setting it up. I think I've mostly got my eggrider set up how I want.
However I'm a bit stumped on what to fill in on the Kunteng settings page of my eggrider settings. Can anyone help with this?
My PAS sensor has 12 magnets on it, but in the options I can only choose 0-7?
Motor speed demultiplier is supposed to be figured out with some math from the number of magnets in my mother, I have no idea how to do this.
Wheel speed pulse signal, I went through all the options and tested the motor, I couldn't really tell what difference it was making.
Assist mode Speed / Torque, I chose torque. It seems like it goes a teeny bit faster.
Phase codification, absolutely zero idea what this is.

I did read the KT display manuals to try and figure out what those settings do, but honestly don't understand them.
Any help would be appreciated!

View attachment 378938

You need to provide more detail on the motor you're using, specifically whether it’s geared or direct drive. If you have pics or a link that would also help. Chose 7 for the PAS. It will kick in to provide assist with less crank rotation than if there was a 12 setting, which may even be desirable. The rest requires knowing what motor you're using. 0 is fine for C2, since most motors we deal with use that default value. It would be different if you have some oddball motor, but if it runs with 0, then it’s correct.

 

[jetzki]

You need to provide more detail on the motor you're using, specifically whether it’s geared or direct drive. If you have pics or a link that would also help. Chose 7 for the PAS. It will kick in to provide assist with less crank rotation than if there was a 12 setting, which may even be desirable. The rest requires knowing what motor you're using. 0 is fine for C2, since most motors we deal with use that default value. It would be different if you have some oddball motor, but if it runs with 0, then it’s correct.

Thanks so much for your reply
I have a geared AKM 500W rear hub motor, 328 rpm 48v. AKM-128CST 36V or 48V 500W Rear Driving Hub Motor Cassette Motor For ebike [AKM 128CST 36V/48V500W motor] - $118.75 : Zen Cart!, The Art of E-commerce

I have not actually installed my PAS yet, plan to do it this weekend.
I'm not getting the correct speed on the display right now, would love for this to work so I can use 1,2,3,4,5 speed and actually have it limit the speeds proportionately.

There's also a low voltage cut off setting C12. I have a 52v battery and would like for it to cut off at 47v if I ever run it that low. Do you know how to set this in C12?

 

[E-HP]

Thanks so much for your reply
I have a geared AKM 500W rear hub motor, 328 rpm 48v. AKM-128CST 36V or 48V 500W Rear Driving Hub Motor Cassette Motor For ebike [AKM 128CST 36V/48V500W motor] - $118.75 : Zen Cart!, The Art of E-commerce

I have not actually installed my PAS yet, plan to do it this weekend.
I'm not getting the correct speed on the display right now, would love for this to work so I can use 1,2,3,4,5 speed and actually have it limit the speeds proportionately.

There's also a low voltage cut off setting C12. I have a 52v battery and would like for it to cut off at 47v if I ever run it that low. Do you know how to set this in C12?

The KT controllers don’t natively support a 52v battery. They will run on 52v, but the parameters don’t support it. The best you can do is add 1.5v to the default 40v lvc for a 47v battery, which will set cutoff to just below 3v/cell. When I was using 52v with a KT, I’d set the display to show battery voltage and acted as the human LVC.
On the speed, does it still display speed when coasting?

 

[jetzki]

The KT controllers don’t natively support a 52v battery. They will run on 52v, but the parameters don’t support it. The best you can do is add 1.5v to the default 40v lvc for a 47v battery, which will set cutoff to just below 3v/cell. When I was using 52v with a KT, I’d set the display to show battery voltage and acted as the human LVC.
On the speed, does it still display speed when coasting?

Not had a chance to go out for a ride today, but the speed is on eggrider is completely wrong compared to my wahoo bike computer. Wahoo and phone tell me I'm doing 25mph and eggrider will say something like 14mph. I've not been paying attention to it tbh, because I know the speed on it is wrong.

I do have the wheel / tire size set correctly from what I can tell.

I will have a go at changing that battery setting.

 

[E-HP]

Not had a chance to go out for a ride today, but the speed is on eggrider is completely wrong compared to my wahoo bike computer. Wahoo and phone tell me I'm doing 25mph and eggrider will say something like 14mph. I've not been paying attention to it tbh, because I know the speed on it is wrong.

I do have the wheel / tire size set correctly from what I can tell.

I will have a go at changing that battery setting.

I asked about registering speed when coasting, since that shows whether the controller is seeing the internal speed sensor, and not just using the hall to determine speed. Once that’s known, the speed can be tuned with the other parameters to match your other bike, gps, or whatever.

 

[jetzki]

I asked about registering speed when coasting, since that shows whether the controller is seeing the internal speed sensor, and not just using the hall to determine speed. Once that’s known, the speed can be tuned with the other parameters to match your other bike, gps, or whatever.

Yes, it does still show speed while coasting. It also shows speed when I turn the pedals and let it coast without giving it any power.

 

[derekderek]

The internal speed sensor can free wheel just like the halls when you’re not on the gas. So the Speedo could read quite inaccurately.

 

[E-HP]

Yes, it does still show speed while coasting. It also shows speed when I turn the pedals and let it coast without giving it any power.

I would start by trying either 1 or 6 for P2. When the controller is using the internal speed sensor, you need to set the number of magnets that are used for the sensor. You may need to tweak other parameters to fine tune the speed, but setting the number of magnets would be the first step.

 

[docw009]

I have an AKM128 with a KT controller and use P1 = 155. The number depends on the internal motor gearing, and Google suggests 150 to 168. P1 is directly proportional to the displayed speed and I found 155 was close enough. I believe the odometer runs off the wheel diameter and P2, as I've covered the same route with different P1 values and mileage didn't change. P2 is 1 because there is only one magnet in the AKM128,