Endless Sphere

my code change will set the target power for walk assist to ±500w and limit the speed to 20km/h (to make it legal in Europe for speed pedelecs) :thumb: but just wondered if you have any plans to add walk assist to the 'Torque_from_X4' branch? You could have made the few changes yourself, but here y...

Etouring wrote: ↑

Sep 17 2020 3:50am

low cost and probably really easy to read out

casainho uses this button pad for his ANT+ LEV project . There are just switches in the pad without any additional electronics:



regards
stancecoke

others be interested in an open source, perhaps programmable assist level button, maybe coupled with a display? There are already several projects, doing exactly what you are describing, e.g. this: https://github.com/prueferfrank/EBikeController/wiki https://github.com/haditim/ESP32-VESC-eBike If y...

The second user has soldered his BMT now :thumb: I've done the next test ride with an external BB torquesensor (E-Rider T9. Due to IGH3 Motor, that has no internal strain gauge) successfully 8) regards stancecoke https://www.pedelecforum.de/forum/index.php?attachments/bmt-geh%C3%A4use-jpg.341072/ ht...

Also you do not use a display but prefer only a mobile app. I only use the mobile phone for logging debug data with blueterm. I don't use the BlueOsec-App of @Xnyle . The app you are using with KT controller is a candidate? is it OpenSource? Sadly it is not open source, @Xnyle has only published th...

stancecoke wrote: ↑

Sep 13 2020 1:15pm

If someone can confirm that it works properly, I can push it to the master branch.

After a little bugfix, a german user confirmed that the walk assist works now. I've pushed the Walk_Assist branch to the master!

regards
stancecoke

Maybe we should keep talking about this development on the specific thread: https://endless-sphere.com/forums/viewtopic.php?f=28&t=106346 I've started playing around with the FreeCAD Surface function. :-) The 3D printing result looks quite rough, which is due to the z-resolution of the cheap 3D pri...

but wouldn't it be better to set a constant speed target feel free to implement it in your suggested way and share your work here! :wink: The whole firmware doesn't know a speed control yet, just a ramp down at the speed limit. So you have to tune a PI-control for the speed, similar to the PI-contr...

because I was trying to pore over every single ligne of the program to figure out where I had to change the code.... I've implemented the walk assist in the new branch "Walk_Assist": https://github.com/stancecoke/BMSBattery_S_controllers_firmware/tree/Walk_Assist It's just quick and dirty and not t...

sylvain_wm wrote: ↑

Sep 13 2020 3:05am

But, as I said, when I hold the "DOWN" button, the meter assist function logo flashes, but the function doesn't work.

Yes, but this is not a matter of the LCD8H, it doesn't work with any display, as the walk assist function is not implemented yet.

regads
stancecoke

It works fine on stock but it doesn't work with the open source firmware this thread is about is this your personal experience? I know, that there are new "L"-parameters, but I don't know how they are implemented in the communication protocol. http://www.szktdz.com/upload/file/20181102/201811020836...

We have developed and tested a module based on a STM32 "bluepill" board, that let's you drive your BionX motor without a BionX console and without a BionX battery. The first prototypes are soldered from various modules on a perfboard. Everything is available as open source in english on github, code...

But I don't understand the program, I don't know where is the torque control. you just have to activate the checkbox "torquesensor" and enter a appropriate value for TQ Calib. Of course Throttle min and Throttle max must be fitted to your sensor. Number of PAS magnets (Pulses per crank revolution) ...

and seems you are not looking to make your work accessible / project having success, since you wrote in DE and not in EN?? no, as usual, everything is available as open source in english on github, code , schematic and wiki :-) Only the discussion in the german forum is in german of course :wink: I...

what is your motivation to help on this project? I'm just happy if I can help :-) My latest hobby project for driving a BionX Motor with a cheap no-name battery and a Kunteng LCD3-display is almost finished, so I have some spare time now :wink: https://www.pedelecforum.de/forum/index.php?threads/bm...

casainho wrote: ↑

Sep 10 2020 8:53am

FreeCAD because is free and OpenSource

That's great, for hobby projects I use it, too.
If you add the CAD-files to the repo, I will take a look!

regards
stancecoke

casainho wrote: ↑

Sep 10 2020 7:08am

Yes I can tell you, maybe the best is to share on the repository the 3D files I did where they fit well.

Ah, you already started with the 3D-design. I'm not very experienced with freeform surfaces, but I can try.
What software are you using?

regards
stancecoke

casainho wrote: ↑

Sep 10 2020 3:40am

Yes, please.

Do you want to integrate all parts in one housing, or do you want the to keep the VLCD5 remote keypad as it is and place the buttoncell and the PCB in an extra housing? Can you tell me the dimensions of the button cell + PCB?

regards
stancecoke

I'd like to increase the max speed, but it doesn't work. I think the 1000W XOFO is a direct drive, this will never reach the max erps limit. I think in your case the speed is limited by the battery voltage. You have to use a Battery with higher voltage to get more speed. Another option would be fie...

casainho wrote: ↑

Aug 28 2020 12:06pm

Is there any mechanical engineer that can help design a part for 3D printing, to reuse the VLCD5 remote keypad circuit board and the touch pad, to add the small wireless board and the button cell?

Do you still need help for the design of a 3D-printable housing?

regards
stancecoke

Ideally I would like to find an affordable controller which also supports a dashboard. There are Lishui-Controllers for BB Torque-Sensors (Sempu/E-Rider): https://de.aliexpress.com/item/4000038619326.html?spm=a2g0o.detail.1000023.1.393a5564nBQac6 With colour-display: https://de.aliexpress.com/item/...

For checking the exactly modules, maybe you can visit here https://www.facebook.com/TopEParts Actually I don't need a new display, but in the german forum are frequent requests from users, who want to replace the simple OEM LED-display (eg. "Fischer" or "Prophete"-Bikes) with LCD displays. Or want ...

Cory Zhang wrote: ↑

Sep 02 2020 4:52am

And for us, display with both J & 5S protocol is available.

Are your displays buyable for anyone, or do you sell only to OEMs / dealers?
Can you post a link to an online-shop?

regards
stancecoke

For this reason, I think that by setting a higher value of max ERPS it will be possible This limit exists to make sure to get a proper sinusodial shape of the phase current. If you get two less PWM updates per electric revolution, you won't get an proper current shape. With the limit of 520 we get ...

how i need to configure firmware when i change acs712 30a on acs758 50a You have to change nothing. With the phase current sensor we only detect the zero-crossing for the advance angle correction. So the absolute value of the signal is irrelevant. The signal has to be 2,5V at 0 amps. regards stance...