eBlur said:Just to double-check... in the original schematic posted by @fechter "BBS02/BBSHD Pas Correction" there appears two be two transistor symbols. I'm assuming this is just a single KSP13BU as it looks like just one in everyone's actual build photos
Rassy said:Thanks P913. I think you may have found a nice partial solution to the Pedal/Throttle issue.
In reading your post and looking at your firmware settings I wonder what would happen if instead of setting the Designated Assist Level to 0 in the Pedal Assist section you set it to 0 just in the Throttle Handle section? Then it seems when you ride in PAS level 0 you "might" be able to pedal and/or use the throttle with smooth throttle control. This may not help in the other PAS levels, but as long as you didn't use the throttle you would still have full PAS support, and maybe it would even affect the throttle response in the other PAS levels.
Have you or could you try this and let us know what happens?
Edit: Okay, I see the fallacy in my logic. Please ignore this post! (Well, maybe)
FlatBlack said:I'm really hoping there's a software fix, as I don't want to dig into the controller wiring.
May try P913's settings out since I think I can live without the PAS.
So which EDIT is that latest / correct one? I have read the 4 pages of that thread and it doesn't seem to mention anything about it solving throttle issues, nor for BBSHD nor for BBS02. Is it really that there is only a hardware mod fix for this? In that case I'm gonna buy some spare "version A" controllers if I can find any for my BBS02'sRassy said:EDIT 5/29/19: There is finally a possible programming fix for this problem. Here is a link to a thread that you need to read (BOTH PAGES) if you are experiencing this problem: Update on 10/13/19, there is no confirmation that these firmware flashes fix the pedal/throttle issue. I will leave the following link in place, since there is a lot of information there pertaining to firm ware flashes:
https://www.endless-sphere.com/forums/viewtopic.php?f=28&t=100064
EDIT: Fechter has completed and tested a simpler fix for this issue. See his solution five posts down on this page.
They confirmed their controllers also have the problem.Rassy said:Does "full throttle" mean wide open throttle or full throttle range? I contacted EM3EV after this problem showed up and one of his guys did a test for me that confirmed they had adjusted some of the settings so that the throttle didn't go wide open immediately but it still didn't deliver full range either. This was some time ago, so maybe they have been able to tweak the firmware properly since then. I don't know and don't care to experiment with it at this time.
However if someone were to get a new BBS02 it would be nice to know if Bafang had finally either fixed the firmware or provided a firmware zap to their dealers.