BBS-FW: Open Source Firmware for BBSHD/BBS02 Controller
- Thread starter danielnilsson9
- Start date
I just want to say a big Thank You to Daniel for his awesome work that he did creating this firmware. I have a 2400Wh 60V (16S8P / 21700) leftover battery that I was using with BBSHD but I was unable to charge it above 58.5V as this would trigger the overvoltage software protection. With this firmware, I can go all the way up to 63V, it is still not 67.2V, but at least I hit the sweet spot of the battery getting 80% of its capacity which will also prolong battery life as opposed to being always at 50% of battery capacity. Now that the software limit has been removed, I can finally set my own low voltage cutoff to 52V which is truly great. Moreover, it also calculates the battery power % correctly. What I would like to see the most is some collaboration work between the SPEEED app (GitHub - mkopa/speeed: Awesome E-bike Configuration Tool and Display) and Daniel's firmware to be possible to change settings from smartphone on the go. That would truly be awesome.
hey mate i flashed this, it needs fixed for BBSHD users, reports my bbshd as a bbs02 and relevant settings in config tool when flashing the bbshd version of the fw you provided.
also temp sensors dont work because it thinks its a bbs02
edit*
I hash checked both files, they identical you basically uploaded the bbs02 firmware twice but its renamed wrong
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Hello!
I ordered a bbshd 1000w 48v motor. I had a 48w 24.5 samsung cell battery made for it in Pilisvörösvár.
My problem is that it doesn't accelerate as it should. I had a bbs02 engine before, it accelerated much better!
I have a cable for it, maybe you know a good firmware for it? I took a photo of the numbers on the engine.
Thanks in advance if you can help.
I ordered a bbshd 1000w 48v motor. I had a 48w 24.5 samsung cell battery made for it in Pilisvörösvár.
My problem is that it doesn't accelerate as it should. I had a bbs02 engine before, it accelerated much better!
I have a cable for it, maybe you know a good firmware for it? I took a photo of the numbers on the engine.
Thanks in advance if you can help.
Attachments
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Ich habe es bisher auf meinem BBS02b, okay, aber wenn ich das Tool zum Einrichten öffne, stellt es keine Verbindung her, es findet den USB-Anschluss, aber wenn ich eine Verbindung herstellen möchte, geht es nicht weiter und das grüne Leerzeichen läuft immer durch ohne Verbindung, was kann das sein?
vidriago
10 mW
Compiled last 1.4.0 firmware and tool today (8 jun 2023), named as "Beta 2". I hope this time BBSHD fw is the right binary
Edit: because I was compiling it wrong, there was 2 identical firmware binaries (BBSHD is this post, BBS02 in previous), it's now fixed and each FW must be the right one
Edit: because I was compiling it wrong, there was 2 identical firmware binaries (BBSHD is this post, BBS02 in previous), it's now fixed and each FW must be the right one
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Ez működik ezzel a vezérlővel?
Milyen frekvenciát használjak?
vidriago
10 mW
Please use translator next time.
It works with all controllers shown in main Github site
There are 2 .hex files for each motor (bbs02b and bbshd), you need to flash at 20.000Mhz using the flashing guide parameters
Johnny A
1 mW
New member here. Flashed 1.3.1 onto my BBSHD (1.5) and set power to 33A - it makes a noticeable difference!
Fantastic bit of work, I have donated.
Used the bike for the first time to go to work today, after maybe 5 miles I started getting a jerky power delivery when on full power. I stopped and put my hand on the motor casing - it was barely warm.
I reduced power from level 9 (100%) to level 8 (90%) and it was fine after that, even with a big hill to climb.
I have read the previous posts and it's down to one of the temperature sensors, is that correct? Or was another reason concluded?
Many thanks.
Fantastic bit of work, I have donated.
Used the bike for the first time to go to work today, after maybe 5 miles I started getting a jerky power delivery when on full power. I stopped and put my hand on the motor casing - it was barely warm.
I reduced power from level 9 (100%) to level 8 (90%) and it was fine after that, even with a big hill to climb.
I have read the previous posts and it's down to one of the temperature sensors, is that correct? Or was another reason concluded?
Many thanks.
Matze_Senpai
100 W
- Joined
- Apr 16, 2022
- Messages
- 129
what was your battery voltage at that moment it happened? also what bms does your battery have?
Hello warning the file bbs02b in your archives also corresponds to the version BBSHD fortunately the error was not fatal for my controller.
I know that I'm asking probably what was already answered or commented on the previous messages, but in the middle of so many bugfixing and small issues, I cannot have a clear decision about change the original firmware to this that look very good.
So, I need from your experience to tell me if I'm going to get a good improvement on mine BBS02B 36V 500W and display 500C (bought on Aliexpress - Tripath Electric Bike Store in Nov 2022), brake sensors, thumb throttle, shift sensor and use a battery 36V 14,5Ah with real Panasonic NCR18650BD grey cells.
Thanks in advance.
So, I need from your experience to tell me if I'm going to get a good improvement on mine BBS02B 36V 500W and display 500C (bought on Aliexpress - Tripath Electric Bike Store in Nov 2022), brake sensors, thumb throttle, shift sensor and use a battery 36V 14,5Ah with real Panasonic NCR18650BD grey cells.
Thanks in advance.
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temperature thermal rollback is a gradual reduction it wouldnt be jerky.
if you flash the firmware you have an option in the config software to show temperature in walk mode data display
just while riding if its jerky start walk mode (holding pas down usually) can be done while braking
your screen will show you doing XX speed in walk mode, this is the temp .
vidriago
10 mW
Thanks for warning, it happened to me for 2nd time and therefore it's now fixed (I was using the dirty folder to compile the bbs02 firmware before bbshd, and .make software was using the first bbshd code despite I've declared bbs02, from now on I'll use twice clean firmware folders to compile both firmwares).
.zip file must be now fixed
Merci pour la correction, la compilation est-elle possible facilement ? Parce que je voudrais compiler des tests de développement sur le changement de vitesse sans tourner les manivelles
Auto-engage gear using gear signal? · danielnilsson9 bbs-fw · Discussion #121
Would it be a good idea if the gears would "auto-engage" using gear sensor? It would be great when just using the throttle. Then when freewheeling, you could slowly change multiple gears without to...
github.com
GitHub - EigenMania/bbs-fw at feature/apply_pretension
Open source firmware for Bafang BBSHD/BBS02 electric bike motor controllers. - GitHub - EigenMania/bbs-fw at feature/apply_pretension
github.com
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vidriago
10 mW
At least, to compile this firmware (just an .hex file for an specific motor) and Windows software (.exe), I'm using Make software to obtain firmware file and Visual Studio (latest and free version) to obtain executable toolkit.Merci pour la correction, la compilation est-elle possible facilement ? Parce que je voudrais compiler des tests de développement sur le changement de vitesse sans tourner les manivelles
Auto-engage gear using gear signal? · danielnilsson9 bbs-fw · Discussion #121
Would it be a good idea if the gears would "auto-engage" using gear sensor? It would be great when just using the throttle. Then when freewheeling, you could slowly change multiple gears without to...
GitHub - EigenMania/bbs-fw at feature/apply_pretension
Open source firmware for Bafang BBSHD/BBS02 electric bike motor controllers. - GitHub - EigenMania/bbs-fw at feature/apply_pretension
Use of make (FW File):
- Download latest code from github in .zip file (just click on the green <>Code button and then click on 'Download ZIP')
- Extract into any folder (I will use Desktop for this guide), you must see a folder named 'bbs-fw-master'
- Download and install Make software (choice latest version)
- Open Windows file manager and place it to C:\Program files(x86)\GNUWin32\bin\
- Copy (DON'T MOVE) all content (3 files) in Desktop\bbs-fw-master\src\firmware\
- Placed in the prior path, right click and open terminal
- In terminal, type .\make.exe TARGET_CONTROLLER=(your controller without space: BBS02B or BBSHD or TSDZ2)
- After a few lines show, you will find a new .hex file (once .hex in folder), just rename it and move it to Desktop or anywhere
- Now you can flash alike a new or official build (if you wanna compile for another motor, delete all main project folder and download it again or it will be corrupted)
Use of Visual Studio:
- Install Visual Studio 2022
- Download project .zip from github (previous steps 1 and 2)
- Open Windows explorer and double click on Desktop\bbs-fw-master\src\tool\bbs-fw-tool.csproj
- In main panel, you will see at your right a panel which shown a terminal icon with the words 'bbs-fw-tool', then right click and compile
- It's time to publish: right click again on 'bbs-fw-tool' and Publish
- In the assistant, just select you desktop or anywhere you wanna place the final .exe file
- Once finished assistant, then click on 'Publish' button near the top-mif of the window
- You will see a new executable file or program in you desktop or folder, let's flash firmware and use the tool which will work with every controller (delete .pdb file, it's a junk file used only for visualstudio)
Thank you i will try this
Johnny A
1 mW
Sorry for the slow reply, didn't get a notification.
Not exactly sure, SOC was about 40%.
It's a 120A Daly BMS.
Johnny A
1 mW
Yeah I wouldn't have expected thermal rollback to be all jerky and it's an inconsistent jerk too.temperature thermal rollback is a gradual reduction it wouldnt be jerky.
if you flash the firmware you have an option in the config software to show temperature in walk mode data display
just while riding if its jerky start walk mode (holding pas down usually) can be done while braking
your screen will show you doing XX speed in walk mode, this is the temp .
I have set the temperature to display in walk mode, so when it happens again I will take a look. (I am on Daniel Nielson's 1.3.1 firmware)
Update from this morning's ride:
As my previous ride had the jerky power delivery I was getting after a period of time at full power @ 33A I decided to disable the motor temperature sensor and run just on the controller temp sensor, I left the power @ 33A.
Rode in this morning (probably a similar ambient air temp, if anything it's a few degrees warmer) and no issues. I was a bit heavier this morning as I had maybe 6/7kgs in my backpack but otherwise the same.
So I guess I will leave the settings as they are for the time being and see if I got lucky today or indeed the motor temp sensor is over-sensitive. I do remember when I changed the settings (which was around 1 hour after I got home so things would have cooled down) that in the event log the motor was showing around 15-20c hotter than the controller.
So at the moment it's a good bet the motor temp sensor is out of wack.
Johnny A
1 mW
Are the developers open to suggestions for improvements?
I have a few of my own coming from a car tuning background.
In the software there is a tab for 'calibration' where you can set the SOC for the controller/display.
What would be really nice is a way to calibrate the throttle so power could be ramped in a more controlled fashion.
So instead of a linear line you could map the throttle to provide more control at low inputs (as an example).
There doesn't have to be a graphical display in the software, simply providing load sites in 100mv steps where you could fill in what percentage of power you wanted. So for example:
1000mv = 1%
1100mv= 2%
1200mv = 3%
etc....
In-between those values the system would use interpolation?
I have no idea about coding so I don't even know if this is possible, but it would be a great addition.
I have a few of my own coming from a car tuning background.
In the software there is a tab for 'calibration' where you can set the SOC for the controller/display.
What would be really nice is a way to calibrate the throttle so power could be ramped in a more controlled fashion.
So instead of a linear line you could map the throttle to provide more control at low inputs (as an example).
There doesn't have to be a graphical display in the software, simply providing load sites in 100mv steps where you could fill in what percentage of power you wanted. So for example:
1000mv = 1%
1100mv= 2%
1200mv = 3%
etc....
In-between those values the system would use interpolation?
I have no idea about coding so I don't even know if this is possible, but it would be a great addition.
Johnny A
1 mW
Another idea I have is to add an option for precise speed calibration.
Currently you just select your wheel size and hope for the best. A more elegant solution would be to have an option to fine tune the speedo, one could be the original wheel size input box as we do now and another box below which is a number which represents RPM of the wheel @ 1mph (or whatever speed people think is best)
In my case if you selected a 26" wheel the RPM @ 1mph is 12.93. 12.93 is displayed in a box which you can fine tune to get an exact speed match (against GPS on your phone).
This came into my head today because even though I thought my speedo was good-enough it only showed 9 miles to my work when it's more like 10miles. Over long distances it makes the odometer pretty useless.
Currently you just select your wheel size and hope for the best. A more elegant solution would be to have an option to fine tune the speedo, one could be the original wheel size input box as we do now and another box below which is a number which represents RPM of the wheel @ 1mph (or whatever speed people think is best)
In my case if you selected a 26" wheel the RPM @ 1mph is 12.93. 12.93 is displayed in a box which you can fine tune to get an exact speed match (against GPS on your phone).
This came into my head today because even though I thought my speedo was good-enough it only showed 9 miles to my work when it's more like 10miles. Over long distances it makes the odometer pretty useless.
You can adjust your screen more precisely by adjusting in centimeters or inches instead of generic setting 26"27.5" 29
Johnny A
1 mW
I didn't realise that, I'll try it out. Thanks
The tire pressure can also vary on the value. Once the right value is completed it's rather precise.Joelectric
1 µW
- Joined
- Apr 3, 2019
- Messages
- 4
I flashed this fw yesterday on my 52v bbshd.
On my first run the bike went into thermal slowdown, once when climbing a steep off-road dirt hill, but this is one I done regularly with my original fw with no temperature errors. The bike again ramped power down on a high speed road run, flat road at about 30mph after 4 minutes.
I since went into the configuration editor tool and disabled the temp sensors and bike runs fine again with no errors.
The temp sensors settings in the fw are definitely set to low.
Also the gear sensor doesn't work anymore, but I was probably expecting that to happen.
However the bike does feel a lot more responsive overall.
Not sure if it's worth the hassle of flashing this fw to be honest.
Depends what you want from it.
On my first run the bike went into thermal slowdown, once when climbing a steep off-road dirt hill, but this is one I done regularly with my original fw with no temperature errors. The bike again ramped power down on a high speed road run, flat road at about 30mph after 4 minutes.
I since went into the configuration editor tool and disabled the temp sensors and bike runs fine again with no errors.
The temp sensors settings in the fw are definitely set to low.
Also the gear sensor doesn't work anymore, but I was probably expecting that to happen.
However the bike does feel a lot more responsive overall.
Not sure if it's worth the hassle of flashing this fw to be honest.
Depends what you want from it.
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