Bafang Ultra (and BBSxx) Tuning

tomjasz said:
So it was NOT a successful installation. Are you using a Prolific driver for W10?
Click to expand...
It was not sucessful and it was
tomjasz said:
So it was NOT a successful installation. Are you using a Prolific driver for W10?
Click to expand...
Yes it was the Win 10 version (from your link) and the driver install was "successful" but device manager reports no driver installed after installation and restart (3 times).
 
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RMK! said:
It was not sucessful and it was

Yes it was the Win 10 version (from your link) and the driver install was "successful" but device manager reports no driver installed after installation and restart (3 times).
View attachment 84078
Click to expand...
If you have access to another pc... Try the cable there.
But I'd guess that you have a bad cable.
 
endless-sphere.com

Programming the Bafang Middrive BBS01+BBS02

I'd like to start a new thread about this... I had a hard time to find all of the info i need in the other thread.. so here is a start. all i know is that: we need': -A TTL converter (cheap off ebay) -A special cable -A computer and a software any more? hope this is a start.. Don't forget...
endless-sphere.com endless-sphere.com

Bafang BBS controller USB programming cable -Greenbikekit.com BBS, ebike batteries, Bafang M620, Bafang M600, Bafang M500, Bafang M510, KT controller with display-GreenBikeKit.com

Bafang BBS controller USB programming cable
www.greenbikekit.com www.greenbikekit.com


electricbike-blog.com

Programming The BBS02 & BBSHD Without Frying Your Controller And Losing Your Sanity

For information on the programming parameters and what they do you should check out The Hackers Guide to Programming the BBS02 located here. UPDATE: The BBSHD is programmed in the exact same way wi…
electricbike-blog.com electricbike-blog.com
 
RMK! said:
Has anyone used the Luna Bafang BBS02 and BBSHD Programming Cable?
One review said it worked with the Ultra version as well.
Click to expand...
I used the one from Amazon that I linked here in post#1. Any cable that works on a BBSxx will also work on an Ultra. They communicate exactly the same way (to date). The CAN bus the newest drives are being built with is going to change that.
 
Maybe it doesn't need one? Does it seem to be working without it?
 
Won't connect. Error message says can't open serial port. I can open device manager and select the USB and windows says it has to update the driver, searches computer and says there is no driver update file on my computer

I can tell what port it's in because it changes when I move it to different USB ports but manually inputting those com ports into the bafang software leave me with the same error message
 
voidedwarranty said:
Won't connect. Error message says can't open serial port. I can open device manager and select the USB and windows says it has to update the driver, searches computer and says there is no driver update file on my computer

I can tell what port it's in because it changes when I move it to different USB ports but manually inputting those com ports into the bafang software leave me with the same error message
Click to expand...
Go through the Update Driver in Device Manager again and let it search the internet for the update...it should find it on its own
 
tomjasz said:
Prolific drivers should definitely work. A majority of issues are related to understanding how to configure a com port, IME.
Click to expand...
Sure messed me up - and I retired with over 20 years in IT! See note #131. Something that simple took me a good 3 hours of screwing around.

Frustrated? Oh hell yes!
 
Gionnirocket said:
Go through the Update Driver in Device Manager again and let it search the internet for the update...it should find it on its own
Click to expand...
Windows 10 doesn't give me an option to search the internet. Only 2 options.

Auto search computer
Manual browse computer

I ended up getting it figured out. It gets buried in the windows update screen. If you click advanced updates a list of small manually selectable updates populates and at the bottom was one for port update. Selected it. Applied, went back to device manager and com port 4 was assigned. All good. I'm currently in right now. So far I only switch the throttle over to current. Gotta look back a few pages to get the other recommendations.
This is for a BBSHD so I realize I'm very limited.
 
I am already starting to notice some issues here. Seems although my bike is equipped with 2 52v batteries the Low Battery Protect(V) is set to 40. By Biktrix's own account this should be set to 47V for a 52V battery, but the controller won't let me set that. It appears as though my controller is a 48V controller. I've also noticed the Limited Current (A) is set to 28 when again, by Biktrix's own support page for 1000w motors this should be 30. This might explain why my power meter on the DPC18 display never reaches 1500watts. Always falls short.
 
voidedwarranty said:
I am already starting to notice some issues here. Seems although my bike is equipped with 2 52v batteries the Low Battery Protect(V) is set to 40. By Biktrix's own account this should be set to 47V for a 52V battery, but the controller won't let me set that. It appears as though my controller is a 48V controller. I've also noticed the Limited Current (A) is set to 28 when again, by Biktrix's own support page for 1000w motors this should be 30. This might explain why my power meter on the DPC18 display never reaches 1500watts. Always falls short.
Click to expand...
That's odd. . . my version of Windows 10 says it will search the internet as well unless it's been disabled in device installation settings... Anywho. . you're in!

Maybe my math is off... But a 52v battery should be at 30% at about 43.6v which is in my opinion a safe enough low limit. I'm not suggesting that you ride it that low every time... But this in my mind is an emergency shutdown to protect the battery. I typically plan and ride to 50% or above.. But my battery is way oversized when measured against my daily ride using about 10-15% of total capacity.

Curious.. Post a pic if you can of your Basic (Page 1) of the settings program while connected to the motor.

On the Current setting I agree with 28a unless you find that you absolutely need every ounce of potential power. For me 20a on the 25a/750w bbs02b is more than sufficient. So I use the lower setting to protect the controller. But I am an old_fart these days.
 
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voidedwarranty said:
I am already starting to notice some issues here. Seems although my bike is equipped with 2 52v batteries the Low Battery Protect(V) is set to 40. By Biktrix's own account this should be set to 47V for a 52V battery, but the controller won't let me set that. It appears as though my controller is a 48V controller. I've also noticed the Limited Current (A) is set to 28 when again, by Biktrix's own support page for 1000w motors this should be 30. This might explain why my power meter on the DPC18 display never reaches 1500watts. Always falls short.
Click to expand...
Glad to hear you finally got in. You mention your set up options are limited, so I just wanted to let you know you have the exact same options Ultra users have. You're just missing the page where the torque sensing is set up.

Regarding the low voltage cut off (LVC), that would concern me as well. I do remember reading somewhere where there's a 52v controller, but not where I read it or if it were for the Ultra only? Anyway, I suppose they might be depending on the battery's BMS system system for LVC. That' not likely something that can be adjusted. In any case, it would be something to keep an eye on when the batteries get low.

28a vs. 30? Eh, no big deal for me here either. I doubt seriously if I would be able to tell the difference unless I was monitoring a gauge. Either setting is going to get me up a hill or across a street in a big hurry.

Geez, congrats on the new bike. Have fun with it! -Al
 
AHicks said:
28a vs. 30? Eh, no big deal for me here either. I doubt seriously if I would be able to tell the difference unless I was monitoring a gauge. Either setting is going to get me up a hill or across a street in a big hurry.
Click to expand...

california-ebike.com

52 Volt batteries-interesting observation! - California Ebike

The following is a reprint from Empowered Cyles by EMPowered » Sep 17 2020 3:02pm An interesting perspective. Matt at empowered. The 28A and 30A comparison is interesting and an answer for those complaining about a 28A BBSHD limit. 52 volt firmware from Bafang limits current to 28 amps down from...
california-ebike.com california-ebike.com

D0230E00-78F7-471F-BAA1-D38699C8400A.jpeg
 
I agree that 28A vs 30A isn't such a big deal but it makes me wonder if my motor is being "neutered". I mean if it's a 48V controller is it getting anything past that? Because 48V x 28A is 1344w which would explain why my display's power meter always comes up short of the 1500w that is advertised.

The change from throttle "speed" to "current" is awesome. Throttle is so much more controllable. I find it weird though that in biktrix own help guide they have these mixed up. They claim the speed setting is for a "gas pedal like response" while current is "on/off switch".

Maybe I'm just more annoyed about this whole controller thing because of the issues I am still having with the brakes but thats another topic for another thread
 
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