My questions are pretty basic. Thanks and keep good work! Number are all over the place from different website. Some steps have been broken down into individual steps for clarity; not having one of these units I dont know if Ive done them right. So if the Current Limit [%] is set to 50 in assist level 5, it will use (0,5 * 18 = 9A) max in assist level 5. Read and Wrtie tabs are eather inactive. You can only change the low voltage cut-off. I ordered the EggRider V2 it has an Android app for changing the setting. Now, with the new controller, my bike is slow and the assistance is not the same as before. You then should definitely set it to 26 inch. Can you upload them to the controller? So in that case, the 52V, will be the only option. I found it really annoying that the motor would stop assisting at different speeds, at different assist levels. I fixed the issue, thanks for letting me know. 32 or 64 bit? You shouldnt lower this value, since this will potentially damage your battery. Bye., Franco You should be able to get a lot more power out of the Ultra if the stock settings were conservative. You could also try a different pc/notebook, sometimes one works and the other doesnt. https://drive.google.com/file/d/1rerH9mTJQfyJcuiB5atlN_aV99v8UBij/view For now I dont see any obvious problems, it should just work. Yes Im running 48v. Thanks for your suggestion! If you have read this entire post, you should have a good understanding of all the settings there are. This is what is says in the right lower corner of the program software. I recommend 4 because this results in a responsive system. What you need to check though is if the cut-off voltage in the programming software is set to the correct value. Setting the speed limit to 100% doesnt mean that the motor will try to ramp up the speed indefinitely. If it then does work, you then know for sure that your pc will not work for some reason. Do you have any thoughts to my new concern here? when my battery level is below around 40 percent , everytime i accelerate from standing my motor will stop working and the screen will says the battery is empty. My kids both have legit mountain bikes as well. Lets say at PAS 1 and 4th gear the torque available at set current% is not enough to turn the motor without additional human power. These are actually one of the biggest batteries that you can buy for diy purposes. The parameters you can use and set are all described in the post. The first issue is probably the most likely problem causing the issue. BBSHD Voltage Problem Firmware Update & Instructions, Search this topic I normally try to do this but is not always possible Hi Giel, the reply button was to a previous comment for some reason.. Im still waiting on my cable arriving so Ill let you know how I go. So this setting can be handy for legal reasons. So you should attach it to the 26 wheel, or set it at 20 in the settings. It has just been installed. Is is really weird that changing the setting on the display doesnt change the read out. You should set this to match the wheel size of your bike. You could set the battery indicator to voltage instead. The possibility that you will fry something is pretty high then. Thanks Giel, I agree as do many that the Bafang I would just keep the current limit of PAS 0 on 0 however. It has a Bafang motor,and LG battery. https://github.com/danielnilsson9/bbshd-fw/wiki/Flashing-the-Firmware, Configure The better way of doing it is just to change the power level for the different assist levels. Thats great! When I pressed write flash nothing happened after 5 minutes so I pressed disconnect. If you decrease it even more, the pedal-assist wont work at all anymore for some reason. Hi, I really want to make these improvements to my bike! You should just be more careful if you shift in high power. Have you replaced it before? Like Eric mentioned it is very likely that Bafang will increase the . If you search on m400 on this page (CRTL + F), you will be able to find his comments. Just set your display to 52V for the correct battery read out. So if you look at it that way, it isnt weird that the cadance at those speeds will not be optimal anymore. Thanks for your efforts on this. From the product name you gave me, I saw that your ebike has a Bafang hub motor. If it also doesnt work on another pc, please let me know. Especially if you ride off-road a lot. The maximum speed you set on your display is also a limit. On my BSSHD .i have changed setting several times with no issues but this time Everting is gone dead after plugging in the usb to laptop.it looks like the controller is damaged And the only thing I think of is I did not power on the battery before plugging usb in to laptop . so when i go on private propperty i can set it to 40 km/h on the Display and dont have to worry to forget it if i drive through the city the next day. If you decrease slow start, you will accelerate faster. Have you received any solutions? zie wel de voltage maar niet het bereik de RANGE is dit een fout of hoort dit zo When I changed the settings I left the Wheel Diameter as 26 as I didnt want to damage the controller by setting it to 20. I tried adjusting the resolution, but that didnt help. The situation that you are describing wont cause damage to the moter. The controller however cant be reflashed using the programming tutorial in this post. Is my range normal ? If you find that the controller is faulty. if it aint broke, improve it till it is-Dog-Hauler Cargo eTrike SB Cruiser-The HI-Lebowski: a Lebowski SMD brain running a zombified Honda IMA Inverter: a HOW-TO guide-Cargo eBike CrazyBike2-General Blog I just want to unlock the speed limit of the 36V 350W model. So dont worry about it too much, you will be fine! I had a light on the usb lead but But software says communication error. 9b- Disconnect ebike battery from BBSHD So there isnt really a setting that you could change that would solve the issue using the programming software/cable. This could possibly hurt the controller, so be careful with this. So you definitely dont have to worry about that. In your reply to me you stated that their is another controller for the M400 that will accept throttle. Can you direct me to this controller, I do have a tech that says he can program the controller for me. This could be the reason for the error code 30 as well. ( the closest Ive found to the m400). The sport and normal modus perhaps can be utilised with different ebike systems for developers, thats probably the reason they are there. When the voltage drops down just below 49V +/- while riding it appears that I loose by assist by 50% of what I was getting at a higher voltage of 49 and above. Very well explained programming settings. I have reprogrammed my controller which was 52v to 48v. Frank. Can you please let me know if I can use 48V without braking the controller or motor. 48T Front I did some more research on your problem and now know what the issue is: Most of the time, the Bafang BB02 48V controller should except 52V without a problem. I get that you can use throttle to power through hills in short burst but that still means I have to be in PAS for throttle to work. This was the case when I had the display. Ex, when I have full battery, screen show 55 60%. I dont know for sure if it can even be reprogrammed. You dont have to open it to do maintenance like greasing. Bafang does not publish any version info, and there is no way to flash/update the firmware in any event. to use Codespaces. You can always set the speed limit on the display to 25 km/h. The config windows are too small and I cant access all the settings. Regards, I changed the settings as detailed above, but it still doesnt work properly. The second statement is sort of correct, in theory, you can do this. The maximum will be 20 (24 is a full rotation). What is your favourite assist level? The lower this setting, the faster the drive unit will decrease power as you pedal faster. This also is the default setting. Bafang firmware update/ Error 30 fix/Error 7 fix BBSHD BBS02 https://www.youtube.com/watch?v=U4KdSIWpR48 Video explaining how to update/flash your Bafang controller firmware. My display(500c) show 76% when the battery is full. And even it goes it can stops at any moment. 25 amp upgraded IRFB3077 mosfets controller (up to 1300 watt with 52 volt battery). Ive been reading about programming my bike a bit more the last day or two and ill probably go for tuning my bike this weekend. HI Giel, First of all, thank you so much for your post, its very useful. This is the only speed sensor that works with the Bafang BBSxx, this setting is the default. You can simply use the suggested settings in this guide. So it is not possible to have PAS 0 as a throttle only setting. There are quite a lot of steps and you could possibly brick your controller. They will probably have a lot more experience with this kind of reflashing. What I said is that if your controller doesnt have such a connection, you will be out of luck. Some cables may require the CH341, or another driver. The 36V, 31Ah battery will therefore have slightly higher capacity than the 52V, 20Ah battery. I would be retrofitting this to a legit mountain bike one of my bikes is a hard tail with a legit front fork, legit hydraulic disc brakes and 1 x 10 shimano drivetrain. So by setting the 9 assistance levels on the Settings in the first tab (Basic) I found that the Ebike responds perfectly on paved roads and on wide dirt roads, but when the paths become narrow and demanding if I enter level 4-5 to have more power the speed is too high to lead the Ebike safely. I just bought it one week ago and battery show me wrong percentage on the screen. If it would be tight, it would be unlikely that it would lose tension while using the pedal assist. From my findings, your definition of speed %limit is wrong. Using This Software Can Void Your Warranty! After 8 months of various tests I give you my configuration for my electric bike Fischer ETH1861, Bafang M400 motor, Battery 557 Wh 48V / 11.6 A Greetings I have installed your configuration and Im enjoying the ride. Special programs and procedures are needed to execute this firmware update. This could happen while I am taking it easy peddling on a flat surface in 5th gear with the PA set to 1. Hi, The battery voltage to battery capacity differs a lot between different 18650 cells. I did look for the controller ratings inside this motor though. (Limited to 0% current). You then should look up how you can change the speed limit on your display. I enter 30% speed for PAS 1, thinking Ill get 30% of 44kmh. Bafang BBSHD Review The one to rule them all? It is no big deal. 9b- Disconnect ebike battery from BBSHD 9c- Disconnect LCD 9d- connect round end of USB-serial cable to the connector you just disconnected LCD from 10- Plug ebike's battery into BBSHD, but do not turn on the battery power; 11- Press "Download/Program" 12- Turn on the battery's power switch. (file also attached to this post, or skip step 1 and 2 and download the stc-isp-15xx-v6.86E.zip from the attached file) Pas de soucis particulier. There is only one version of the controller you have. No, underpowering will not put any strain on the electrical system. If I want to completely limit my bike speed to 25km/h, what speed I should write in the throttle setting? CRR10E4830E105001.1_190413-1.zip If you want different speed limits in different assist modes, you should tweak them accordingly. 6) select com port and view/change settings I will try a new cable, if that doesnt work maybe I will need to replace the controller? If you still have questions, dont hesitate to ask. The low voltage cut-off should be around 32V for a 36V battery. 11T Rear. Download. I tried. But probably the only thing that you should change, is the current limit. As of the display, it doesnt really matter which you choose. My question is: Which values do you kindly recommend for me for the low batterie protection and current limit if my motor is 350 W and my batterie is 36A. The range is dependent on so called watthours (Wh). The only setting that works is 1, again default. You should do it manually by braking just a little so that the cut off will activate. Are the LEDs still lighting up on the usb programming cable? In order to start reprogramming your Bafang BBSxx mid-drive system, you will need a programming cable. I search everywhere and cannot fine if I can use a 48v battery on it. If you want to avoid it completely, you will have to opt for hub motor style e-bikes. Even if you would make a bad shift in a really high power mode, you wont brake anything. The Bafang BBSHD doesnt have a torque sensor, therefore it ofcourse also cant be faulty. You should check all physical connections first. Lessons learnt! 3) Mostly explained in 2. There is a 36v sticker on the motor. I expect that the settings are set correct, in that case the bike behaves like it should. Often the only way of finding out what is causing it, is by testing individual components. Following the Bafang configuration tool instruction I installed the parameters you recommended. I use a quite cheap Shimano 9 speed cassette with a generic MTB chain (not e-bike specific). If the voltage drops beneath a certain threshold, the assistance will stop. In my opinion nothing wrong can be with battery. Cordialement. Assist 3 of the display corresponds to Assist 6 of the controller Assist 4 of the display corresponds to assist 8 of the controller Assist 5 of the display corresponds to assist 9 of the controller. I hope that this explanation is clear to you. Lets see: I do not have the MAX PAS setting in the display. Any clue if this guide will work just the same as for the motors you described? Haben Sie eine Idee wie ich da weiter komme oder Wissen Sie ob die Programmierung bei dem Motor funktioniert? The problem with this is that you cant pedal along in low gears since the cadence of your own pedaling would need to be really high. I use the following tools: It is more difficult and advanced than this. I dont know if this will also disable the throttle though, you would have to test. I have two questions: What kind of cassette and chain do you use and how many kilometres do you ride on one chain. When you say pas 9 for safety reasons are you saying its safer to ride at full power on pas 9 than full power with the throttle only ? Hi, Giel Hi there was the best setup for bbs02b version 1,Its the newest version, 2. I found that this way the motor responds a lot more like you would expect. Have a good day all. I also dont think that you can improve your range with reprogramming certain settings. It should have it right? To obtain more torque with lower speed, I set these values in the BASIC card. It would in fact lower it. Thats why your motor will only work at this voltage. Please could you try and help me? If you want to ride on private property you just change the speed limit on the display. Hi, If you have a 52V battery, you need to set this value to 44.
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