Hello,
I've been trying to spin a DC motor with a VESC in speed mode.
I have a position feedback thanks to an ABI encoder but I can't get a speed feedback. In Vesc tool. the ERPM and tachometers stay to zero (with "realtime data" on).
Does anyone know what might be the problem ?
Thanks
Jessica
Hi Jessica
I never used a DC or Encoder feedback on the VESC, but you are aware that a DC (with Brushed collector) does not offer it's speed like a polyphase BLDC does, so only the encoder could tell these, providing the impulses/second are known to the VESC and the signal is reaching the controller so he could calculate it. What input did you choose for the encoder?
Cheers
Sam
Pedelec usage in combination with a GoldenMotor MagicPie3 BLDC
I have the same problem
The DC motor implementation is a bit limited at the moment, and speed tracking is not implemented, even with an encoder, mainly because I don't use DC motors often. Should be quite easy to implement though, so I will do it for the next firmware. It will probably be a few more weeks until I release the next firmware though as I'm working on some major updates - so far 1500 lines have changed in the firmware and 3500 lines have changed in vesc tool, especially the mobile stuff.
Thank you very much for you answers Sam and Benjamin.
I'll try to implement it myself or I'll wait for the update if iI can't do it. If anyone already did it or has an idea how to, please let me know :)
Thanks again Benjamin for your hard work.
Jessica
Any update on the DC with ABI configuration firmware updates, Benjamin or Jessica?
Good news! Benjamin has implemented it in the latest firmware. Please download it from here and flash onto your vesc.