over the winter season i've done some work. i tried to modify the new MAC motor, which was not very successfull, so i took on of the old MAC and tried to refine them.
there was again some strange klonk, klonk noise coming from the freewheel/clutch. but now i could cleary identify the cause. it is the YOKE! it's the magnet bowl. i have several of them and let the motors run w/o clutch to see which of those had the smallest wobble. but the one which was almost running true seems to have some offset of the sun gear which makes the freewheel make that noise.
after using one of the wobbly yokes it runs fine now.
i also tried programming the kelly controller which was not very successfull. it conked out all the time, and it still has this strange behaviour of revving up the motor when letting go the throttle @wot. i wished the motor was running that fast all the time.
so i tried changing PID settings a lot but it really didn't get much better. fany suggested setting phase/battery to 100/80%. this is MUCH too high, pushing WAY to much current into the little motor making the controller switch off or giving 3/2 error (over current). so i lowered phase/current to 50/50 which gives me 100A phase max and around 50A battery max. being a 120A controller those settings don't make sense to me - calculation wise, but the phase/battery amps are measured, and it trust those values.
good news is, that the oscillation of max speed has gone away and it runs stable at full speed now (not as fast as the trapezoid kelly/infineon, but still ok. no load speed in 9th gear is 57km/h and guess what: loaded speed is exactly the same. i was hoping for 70km/h top speed, but i already use the 23t gear in front, and that's the biggest one you can buy. i could use a 6T motor, but it's only .5mm lams and maybe too much eddy current.
i will post the kelly screenshots here for (my) reference so i can find them again