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  1. K

    Help fault-tracing burnt resistor

    Thank you so much for your input. I will try to get better photos when I get access to the controller again. Will also check for a potential shortcircuit or something in the love voltage system. Maybe it could be the PAS wire the front/rear light that is also powered by the bike.
  2. K

    Help fault-tracing burnt resistor

    Thanks for your replay. I will have to check if there are any shunts in addition to the resistor. But just to question your theory, why would this happen out of nowhere, it has been working properly for years, and out of sudden it gets burned, not only on one controller but also on the new one.
  3. K

    Help fault-tracing burnt resistor

    Hello, I am trying to help a friend figure out what is wrong with his ebike. The resistor in the picture heats up and finally burns. He has replaced the controller and same thing happens. He also replaced the PAS and the display and that made no difference. My guessing is that there must be...
  4. K

    Lishui "Open Source Firmware" project / KingMeter 5S

    I will check it out. I don't have full understanding of motor controllers yet, but its never too late to learn :-)
  5. K

    Lishui "Open Source Firmware" project / KingMeter 5S

    Thanks for the help! It is a bit noisy but that is not the main problem. I can even feel the vibrations in the steering-handles without PPL. Its fully smooth with PPL, but very jerky due to the bad tuning.
  6. K

    Lishui "Open Source Firmware" project / KingMeter 5S

    Thanks for the answer! Mine is a geared motor I assume(Spintech F1, from an ecoride bike), but which strategy do you suggest? I start with 7/11, if that is jerky I change to 8/11, how high/low should I go on P part until I should start to change the I part? Or is it just random testing that is...
  7. K

    Lishui "Open Source Firmware" project / KingMeter 5S

    Does anyone have any good suggestions on how to tune the PPL P and I factor for using position PPL in the Ebics software? I have tuned many PI-controllers in my life and I do understand how they work etc, but this one does not seem to follow the normal way of doing it. So my question is if...
  8. K

    Understanding max speed of wheel

    I am satisfied with this answer. I now understand the concept of kV and the speed indeed increased with higher voltage. The question was also phrased for a unloaded wheel :-)
  9. K

    Understanding max speed of wheel

    Thanks for the help guys, then it seems logical that its the voltage. I will experiment with it :)
  10. K

    Understanding max speed of wheel

    Sadly, I do not have the possibility to test that.
  11. K

    Understanding max speed of wheel

    Hello, I am struggling on understanding how the max speed for my hub-motor works when it's controlled by a controller with the following open source software: https://github.com/EBiCS/EBiCS_Firmware In the firmware the current is set to 15A and max speed to 255 km/h. Still the wheel only spins...
  12. K

    Jerky motor control

    Thank you very much for all the advice of the stuff to check. It ended up not being a hardware related issue. It was the "position ppl" in the software that was badly tuned, when I realised that the P gain and I gain has to be tuned for the motor. Everything started to move smoothly :-)
  13. K

    Jerky motor control

    Thanks for the help. I am actually not sure if i am running sensorless or not. These are the settings I have been using. I have ran the auto learn function in the firmware, with a free spinning wheel. Regarding testing with stock firmware I only tested with the throttle and then it only...
  14. K

    Jerky motor control

    Hello, I have started to experiment with the open source Lishui firmware https://github.com/EBiCS/EBiCS_Firmware I have managed to get the wheel to spin, but it is super jerky. It seems to be out of phase or something. I have checked the throttle signal from the debug interface and that is...
  15. K

    Throttle control Lishui controller

  16. K

    Throttle control Lishui controller

    Thanks for the help. This worked, however only at walking speed. So good that I bought the ST-link after-all :-)
  17. K

    Throttle control Lishui controller

    Thank you very much for the response, one of the Higo connectors was indeed connected to the SP port. I will try it stock firmware first, but I ordered a ST-link just in case :-)
  18. K

    Throttle control Lishui controller

    Thanks, I'll check if I can flash the open source firmware. Don't think this controller has a throttle control. But just curious if someone has modified the pcb to allow that.
  19. K

    Throttle control Lishui controller

    Hello, I bought a wheel motor together with a motor controller for a DIY project. The controller is of model Lishui LSW1108-8-1f/LSW6G-90B-F0C. I do not intend to install a display or a PAS. The intention is to use this ebike with a throttle. Does anyone know if this is possible to achieve...
  20. K

    Pinout for this motor controller

    Tack så mycket för det snabba svaret! Ska undersöka länkarna du skickade :-)
  21. K

    Pinout for this motor controller

    Hello, My goal is to build my own ebike, where the main focus is to learn how to build my own batterypack. To start this journey I found a 9 pin ebike wheel on fakebook market. Sadly I also agreed to buying the included motor controller(which I now realize was a mistake). Could someone help me...
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