General discussion

Hi

im working on an electric wheelchair.

I have two BLDC hub motors from an e-bike, fitted on the wheel chair, I got a VESC 4.20 DUAL, battery, and arduino.

my problem is that i need the motors to be controlled individually, from two separat analog signals, with the build in ADC on the VESC

im using a VESC 4.20 DUAL.... and i can´t get it out of CAN-BUS mode(i think thats the problem at least), and every time im setting up one analog signal, it basically deletes the other one I´ve just setup.

I'm using the VESC to control a reaction wheel for my thesis. However, the motor setup (FOC) in the vesc tool is not working for me. It does detect R, L and the flux linkage but the values are very off from the data sheet of the motor. When I enter the values from the data sheet instead the wheel just doesn't want to spin. It makes a weird sound but that's it. Any ideas why this is happening? (it doesn't spin with the values obtained from the vesc tool either so..) 

How are the PID gains calculated in the vesc tool? Can I find information about this somewhere? 

Hello! I am completely new with this and have a few questions. 

Can I use the VESC to control a very small motor that should be run at 6V? I noticed that the VESC needs at least 8V but is there a way to come around this? Could I just lower the max duty cycle? 

Just wanted to shared my app code to improve control at low speed and provide full stop  with hall sensors only  (encoder would allow to use position_pid instead).

I use "mcpwm_foc_set_openloop_phase" with a current proportional to the difference between the actual position (from hall sensors) and the last angle when motor was rotating.

Hello,

I am planning on building my first project with VESC. I come from a background of plane/boat/racing quad ESCs, which generally accept either PWM or 4-12 channel PPM. Because I would like to use my current 4-12 channel PPM RC Transmitter for my project, I want to confirm I can use this transmitter/controller before purchasing. I can configure whatever frame size/pulse length is needed, but I cant go below for channels. 

Hi,

im on project which includes blcd linear motor. Can VESC drive with these kind of motors? These motor have encoder some models builtin.

Hi in the VESC tool for setting the max RPM it asks for the

number of pole pairs . In my motor there are 36  coils  and 30 magnets

so is it 18 pole pairs  (from the coils)

or is  it 15 pole pairs  (from the magnets ?)

Cheers

Don

Hi guys,

I have an inductance measurement issue with my motor, It doesn't allow me to use HFI.

When I use a ready to run motor from T-motor everything seems fine, but when I try to mount my own motor (stator and rotor hooping), my measured inductance is different from a Dcy to another (picture below)

My motor runs fine at no load, but whenever there is a load it's struggling. Any help please ?

Hi all,

at the moment I am planning a small electric motorcycle (conversion). At this point I am working at the project for more than 1 years now. I checked out different electric motors and inverters. When i found the VESC it sounded really interesting, but when i checked it, there where no VESC with the power i needed.

But now there is the VESC 75/300 and it fits perfect to my requirements.