nox wrote: ↑
Apr 22 2019 2:33pm
Is it worth to try OSEC with KT36-ZWSRT (KTE-6S5-A) + LCD5 + MXUS XF08 rear geared wheel? Will it work?
What about frame vibrations / resonances when using a rear geared motor with an original firmware? I tried the rear engines Mxus XF15R (Gear 50, 1:5 reduction rate), XF08 (1:4.4), as well as Bafang SWX02 500w (1:5). And they all have the same breakdown on the original firmware (6-step ZWS and sinewave SVPR) and on the open source. Unpleasant resonances and vibrations of the frame, pedals, even the KT-LCD3 display on the steering wheel rattles, and strong vibration peaks in the range of ~11-12 km / h and ~ 20-23 km / h. The feeling that you are riding on an old crumbling clunker, and not on a new motor.
I do not know, therefore, the firmware is so poorly compatible with gear motors. Yes - the user of the front engines may not notice the problems - the front fork softens the vibrations and does not allow them to be rigidly up to the aluminum “ringing” bikeframe.
Yes, without a load, the motors behave perfectly on 6 steps and a sine - but if you sit down and go - everything becomes bad.
I had to buy and install a cheap standalone Chinese controller https://ru.aliexpress.com/store/product ... 18beQneQ7v
with a “real” meander. Yes, without a load, the engine's itching is louder, but when driving it behaves perfectly - quietly, smoothly, there are not the slightest vibrations. I do not know the reason. Perhaps the KT firmware are optimized for working with DD? Does open source not take into account any features of gear motors? Or are these motors wound so as to perfectly work only with a pure meander, not 6-step and not sine?