Bafang M510 MOTOR Firm ware adjustable parameters ?

[KIMSAN]

I’m riding an eMTB with a Dengfu frame equipped with a Bafang M510 motor. In the motor firmware settings, there are several adjustable parameters, but I’m not sure what some of them mean. The items I don't understand are: assistance %, acceleration, and startup angle.

Here is a screenshot of my current firmware settings. I’d really appreciate it if anyone could explain what adjusting these three parameters actually does.

Thanks in advance for your help, and ride safe!

 

[ncs]

Hi,
assistance: is proportion of you leg power to power from motor, example if 100% - motor will give you same power like you press pedals, if 150% - motor give you 50% more than your leg power \\ 160% is normal for trails on my e-fatbike for ride anything

acceleration: is how fast motor get to max power from start, 1 - slow start , 7 - fast start \\ I think normal is 2 for trail and 5 for uphils

Startup angle: at what degree you move pedals before motor start, 10 degrees is normal for me

IMHO settings from you screenshot is fast death for motor from extra low startap angle and over-assistance
but if you change anything you can't change 25km speed limit in this program

 

[pxl666]

acceleration is a power ramp how fast motor delivers power , i think is better to have it fast on weak assist and slow on strong assist , its harder for u but safer for drivetrain

 

[KIMSAN]

안녕,
지원: 모터에서 나오는 힘에 대한 다리 힘의 비율입니다. 예를 들어 100%이면 모터는 페달을 밟는 것과 같은 힘을 제공하고 150%이면 모터는 다리 힘보다 50% 더 많은 힘을 제공합니다. \\ 160%는 트레일에서 제 전기 팻바이크를 타는 경우 정상입니다.

가속: 모터가 시작부터 최대 출력에 도달하는 속도입니다. 1은 느린 시작, 7은 빠른 시작입니다. \\ 일반은 트레일의 경우 2, 오르막길의 경우 5라고 생각합니다.

시작 각도: 모터가 시작되기 전에 페달을 움직이는 각도는 10도입니다.

IMHO 스크린샷의 설정은 매우 낮은 시작 각도와 과도한 지원으로 인해 모터가 빠르게 죽는다는 것입니다.
하지만 아무것도 변경하지 않으면 이 프로그램에서 25km 속도 제한을 변경할 수 없습니다.

답변 정말 감사합니다. 바쁜 일정에도 불구하고 시간을 내어 도와주셔서 감사합니다. 제 모터가 전력을 너무 많이 소모하는 것 같다고 말씀하셨는데, 이 문제를 해결하려면 어떤 부분을 고쳐야 할까요? 그리고 제가 공유한 사진과 같은 펌웨어를 설치해 보셨나요? 앞으로도 즐거운 라이딩 되시길 바랍니다.

Hi,
assistance: is proportion of you leg power to power from motor, example if 100% - motor will give you same power like you press pedals, if 150% - motor give you 50% more than your leg power \\ 160% is normal for trails on my e-fatbike for ride anything

acceleration: is how fast motor get to max power from start, 1 - slow start , 7 - fast start \\ I think normal is 2 for trail and 5 for uphils

Startup angle: at what degree you move pedals before motor start, 10 degrees is normal for me

IMHO settings from you screenshot is fast death for motor from extra low startap angle and over-assistance
but if you change anything you can't change 25km speed limit in this program

I really appreciate your response. Thank you for taking the time to help me despite your busy schedule. You mentioned that my motor might be consuming too much electricity—what part should I fix to resolve that issue? Also, have you ever set up the same firmware as shown in the photo I shared? Wishing you many enjoyable rides ahead.

 

[ncs]

fix to resolve that issue? Also, have you ever set up the same firmware as shown in the photo I shared?

My settings was made like more MTB-fitness so I use only 3 levels
Startup angle: 10 degree
#E: assistance 140 max.power 40 acceleration 2 speed limit 25kmh -ride on roads with walking people
#T: assistance 160 max.power 80 acceleration 2 speed limit 40kmh -ride on forest trails
#S: assistance 250 max.power 90 acceleration 4 speed limit 40kmh -ride on hard forest trails with many descends \ uphills

no, I don't try settings like yours

 

[Charly]

My settings was made like more MTB-fitness so I use only 3 levels
Startup angle: 10 degree
#E: assistance 140 max.power 40 acceleration 2 speed limit 25kmh -ride on roads with walking people
#T: assistance 160 max.power 80 acceleration 2 speed limit 40kmh -ride on forest trails
#S: assistance 250 max.power 90 acceleration 4 speed limit 40kmh -ride on hard forest trails with many descends \ uphills

no, I don't try settings like yours

How can I set a different speed for each mode? Is that possible?

 

[Waynemarlow]

There is a facility to restrict the speed in each level to a percentage of the max speed. If you start with a 45kph speed in Boost you maybe able to set the lower levels to 25kph ( 54% )

 

[ncs]

How can I set a different speed for each mode? Is that possible?

On top image from besst tool - "Speed Limit %"

 

[Dado]

Speed limit % is a bad label from Bafang. It is maximum rotor RPMs.

So it does not have anything with speed limit as we have derailures. If you have a single speed ebike, then it will indeed set also speed limit per each PAS level. But not good to throttle it in low RPMs - bad efficency here. Just leave it all at 100%.

Also no need to set 1 degree, resolution with rotation sensor is like 8.5 degree (not exactly sure about right number).

More acceleration = more stress on internals, chain, cassete, hub.

Assistance % is important - if you like to push into pedals more or less. Lower percentage = better range as you will put more energy into ride by legs.

 

[ncs]

Speed limit % is a bad label from Bafang. It is maximum rotor RPMs.

So it does not have anything with speed limit as we have derailures. If you have a single speed ebike, then it will indeed set also speed limit per each PAS level. But not good to throttle it in low RPMs - bad efficency here. Just leave it all at 100%.

Hi, not agree, without throttle, only on pedals if I set Speed limit in % ~ = 25 km/h it will cut off motor when you get 25km/h no matter what gear or cadence.
But I do not like it, I can get 27km/h on foots without motor and I hear strange sounds from motor when it on-off-on-off ...
After year of use Ebike I set E mode limit only in case of police questions

 

[Dado]

How many percent is 25kmh?

 

[ncs]

How many percent is 25kmh?

62% = 25km/h if total limit is 40km/h