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  1. J

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    Problem solved, I removed the two LVC resistors of the 72v controller (1.5k and 39k) and replaced them with the LVC resistors that are on the 48v controller (1.2k and 15k). See page 180 for pictures of LVC resistors of each version. So, there is indeed a hard LVC that the low and high voltage...
  2. J

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    Quick question... :) I am trying to test the 72v controller (56-90VDC) flashed with the open firmware with a 48v battery, but nothing happens. Still, in the parameter configurator, I put 0 and 255 for low and high voltage cutoffs, so I should not be bothered by any LVC... Is there a hard LVC...
  3. J

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    I don't have throttle lag once I am running. Maybe only a little at startup.. ? For PAS input to disable cruise, I need to take a look at the code and see if it's easy to do, but I don't have PAS to test it, you would need to be beta tester :D
  4. J

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    How do you recognize a processor overload when riding ? Can it be dangerous ? If my setup (torque simulation, throttle only) is working fine on master branch, can I switch to Torque from x4 branch without any changes ?
  5. J

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    So I tried to turn on the controller with 12 mosfets soldered only, and with 2 µs dead time instead of 1... failed again, popped mosfets again :D I believe there is more to it than only a gate charge problem... FDP2D3N10C and CSD19530KCS don't seem to work on KT48 18fet... I see that IRFB4110...
  6. J

    new kt controller doesn't work

    Could you please link that official seller on aliexpress ? Also, could you take a look inside at which MOSFETS are mounted ? Are those IRFB4110 ? Thanks !
  7. J

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    Oh yeah, would have definitely missed that, thank you :)
  8. J

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    Ok, here is the modified updateRequestedTorque function in ACAcommons.c that will do cruise. The comments might not make sense because I might have copy/paste some parts. It cruises after about 10 secs. It stops cruising if you reaccelerate of if you brake. Be careful, it uses the low limit of...
  9. J

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    Hi everybody, This is my first post on ES, mainly to thank you guys for this great firmware which I've been testing the past few months. I have a 3k turbo 3T on 48V with KT48SVPRC 18fet. I have used it up to 100A battery, 200A phase (only short bursts because I am reaching max speed quite...
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