I`ve decided to change internarl MP2 controller for external.

[Gabriel]

Hi, I`m decided to change internal MP2 controller for external. My MP2 1000Watt Motor is not working. Last time I had a problem with the controller this time too.
Do you know someone who has changed internal controller for external ? I suppose that it is a detailing  and dedicated task.
Do you know which controller is better for replace it? Which trademark do you recommend? Someone who has done this work can share any photos?

Thanks!!
Gabriel

[Bikemad]

Hi Gabriel,

Check out this post for more information on converting to an external controller.

Edward Lyen's controllers seem to be quite popular for external conversions, and you also have the option of sensorless controllers that do not require Hall sensors or the five Hall sensor wires to be used.

Alan
 

[Gabriel]

Thanks Alan!! I will check 

[Gabriel]

Alan, one question sensorless controller, who to detect the position of wheel ? I need to buy a new one, and obviusly if I could I will buy one sensorless controller to avoid wiring. The question is if the sensorless controller has any power loss.
I will buy a sensorless controller 48v 1000w.

Thanks!!!
Gabriel

[Bikemad]

I ran my original Magic Pie (version 1) in sensorless mode with the original internal GM controller for several weeks after blowing the hall sensors. Apart from having to pedal first before the motor would cut in, the only difference I noticed was that it was slightly noisier.

I have no experience with Infineon sensorless controllers, but this might answer your question:

I have a new sensorless infineon working with the pie, it will start from stop, and really is not distinguishable from the standard infineon controllers ........works equally well on both....

I believe that this controller will also work with higher wind count geared motors, but not the lower wind ( faster speed) count ones......like the mac speed version, something to do with the higher wind count being able to generate a higher back emf pulse (how the controller figures out where it is, signal going back through the redundant 3rd phase wire)

If you are worried about reduced power, go for the 40A controller which will produce even more power than the original GM controller (provided your battery is able to supply it).

Alan
 

[Gabriel]

Thanks Alan. I will buy this controller:

https://www.aliexpress.com/item/492963725.html

Anyone has any experience with this?

The seller said me that it works with sensorless bldc motor.

Thanks!!
Gabriel

[Perth]

I would be curious to know how it went for you?