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  1. japperrrr

    Lyen controller broken (replace the IC)?

    And another e-mail out to Lyen. I've sent him the url to this topic so hopefully he will respond and show is willingness to solve this.
  2. japperrrr

    Lyen controller broken (replace the IC)?

    So from what I understand, I will only be able to repair the controller if Lyen sends me a new IC? Unfortunately he is not responding to my e-mails but I will try contacting him one more time then. It would be the least he could do since I already repaired everything else myself. Let's just...
  3. japperrrr

    Lyen controller broken (replace the IC)?

    Long story short: Could I simply solder a new IC onto the board and program it the same way as I would normally do? Or would I need to install additional code onto it before soldering it to the pcb? Long story long: I bought two 9 FET controllers from Lyen a few months ago and have been...
  4. japperrrr

    Help with cogging Hub Motor

    Well, I guess that my motor must be broken then. Thanks for the help though. If you would ever want to get rid of yours, at least you know know who needs one haha :lol:
  5. japperrrr

    Help with cogging Hub Motor

    The controller that came with it has been custom designed by the Dutch manufacturer. It is one PCB but it consists of two 3 phase controllers. That's also why I tried to replace it a pair of Lyen controllers. Since the motor has 6 phases it also has 6 phase wires. I need to know if the two...
  6. japperrrr

    Help with cogging Hub Motor

    Hey Tango, I have the exact same motor as you have and it has the same problem. Only the cause seems to be different. Few months ago it started shaking and I found out that it runs smoothly when I disconnect one pair of 3 phases. Basically, I can drive on either phase groups, as long as I only...
  7. japperrrr

    6-phase controller "out of sync"

    As a final attempt in solving this mystery: "6-phase controller "out of sync"" in "E-Scooter and Motorcycle General Discussion" Hopefully someone from this subforum does have some knowledge about 6 phase controllers, I pretty much ran out of ideas. The motor I believe is a double coil bldc...
  8. japperrrr

    6-phase controller "out of sync"

    Previous topic: https://endless-sphere.com/forums/viewtopic.php?f=10&t=72781 Cause: water damage Solution: let it dry and clean it up System specs: - 48V 40Ah Winston LiFeYPO4 (16c) - 24 FET 6 phase sensored controller - IRFB4310 mosfets - Two CY8C24533-24PVXI IC's - Top speed 55 kmh / 35 mph -...
  9. japperrrr

    Zero torque after "warm start"

    The inner tube should in theory do the trick, at least for not letting water get inside. I don't see how else it could have got there, since the cable harness itself has been completely filled with Polymax adhesive and its opening is orientated away from the rear wheel. Still, the hole doesn't...
  10. japperrrr

    Zero torque after "warm start"

    Yes, indeed. Not really a electrical engineers fault haha. But it still sucks... To see how the hole for the cable harness had been sealed, I opened up the connector. There was some kind of inverted conical rubber to which the end of the tube should be pushed against. Didn't really work, though...
  11. japperrrr

    Zero torque after "warm start"

    Opened it up and fuckk, water inside again. The only way it could have gotten inside the controller is by running down on the outside of the cable harness and then entering the controller through the connector... :cry: (see red arrow) The end of the cable harness had been positioned so that...
  12. japperrrr

    Zero torque after "warm start"

    Haha, looks rather difficult to me! But I might give it a try if I don't have other options. At least then I know how to repair it if it would break again. Anyway, I will take the controller off the scooter again and open it up. The controller is said to be designed by the company themselves...
  13. japperrrr

    Zero torque after "warm start"

    Thanks for the reply. I'm sorry to say so, but the main building is being demolished as we speak :D The Faculty of Electrical Engineering has moved into a brand new building called Flux. A lot of buildings are being renovated (Vertigo finished few years ago) and also the whole public space on...
  14. japperrrr

    Zero torque after "warm start"

    First of all, let me introduce myself to you guys. My name is Jasper and I am 21 year old. For the last three years I've been studying Architecture at the Eindhoven University of Technology (Netherlands). Recently, I also started with a bachelor Automotive (Faculty of Electrical Engineering) at...
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