I modified the following files in VESC ROS : https://github.com/sbgisen/vesc to get the proceeding errors when I was trying to control 2 motors using the VESC ROS Interface.
Modified code of "velocity_control_sample.launch":
""
<launch>
Hi
I am attempting to detect parameters with BLDC mode, but it fails.
The motor is an Axi 8120/08 (675 g, Kv 190)
The VESC is v6mk5 running fw 5.30.
After tuning the detection parameters to:
I = 3 A
w = 500 ERPM
D = 0.04
It looks like the routine is completed, but I still get "Detection failed." instead of results, and in the lower right corner it say "Bad detection results receiced" with red background.
Hello All,
I am working on using a VESC 6/75V to control the rear wheels of a mobile robot. The singular BLDC motor goes through a 22:1 differential gearbox to move both wheels: https://ibb.co/p4sZp7J
I am able to use the motor in sensorless mode after FOC detection; however, the motor is quite jittery at low speeds despite tuning the PID. I then decided to integrate a 4096 CPR ABI encoder on the rear output shaft of the motor to improve performance.
Hi All,
I have a Maker X HI 100 (VESC 6 based), running at 48V connected to a 1KW 26 inch hub motor, with hall effect sensors.
I have run a FOC detection and all looks good.
At regen levels greater than 50A, I get a strange vibration, almost as if the hub motor is desyncing.
I get a similar vibration under acceleration above 70A, but I would imagine this is due to core saturation as I am greatly exceeding the power rating of the motor.
Any suggestions? Thanks!
Is there any way to adjust the PID of braking?
When I lift off (full brake) while at around 20% speed, I often get an ABS max current fault. I am testing this on the bench with a mass attached to the motor shaft to provide some inertia.
PPM input, Duty Cycle, 12S, Trampa VESC 6 MKV, fw 5.03 and 6.00.
I tried 5.02 and it does not have this problem.
I tried adjusting Motor Current Max Brake and Battery Current Max Regen, but no change.
Why not make an area for DIY project? I mean projects that involve VESC-parts.
/Magnus
Hello all
I have been working on a modded electric scooter using the Flipsky 75100 ESC. I have combined some batteries and am doing 84V top.
The esc is configured for BLDC mode and i'm using current control over CANbus from an esp32.
My problem is this:
I am able to control the acceleration and current perfectly fine up until the scooter hits around 30 km/h where it will suddenly accelerate even harder, even though the input hasn't changed.
Hi all.
I found this site and it looks very impressive. Also I think it is perfect to get my problems solved 😊
My problem is:
I need some motor controller for a 1.5kW motor, 58V. I think the 75/300 suits here very good.
My questions are:
1. Do you have any idea to have good "test motors"? Where can I buy these?
2. Is here somebody who can make a lecture in an online meeting? This would save a lot of time for me. Of course I would give some money for that.
Thanks :)
Alexander
Hello everyone,
Does anyone know the frame-size of VESC 4.12 on the firmware version of 5? I am trying to read the response of the motor, which send back to VESC through this method. But, it returns NONE. It might be the wrong frame-size. Has anyone ideas on this? Or any better solution?
Anyone able to help me here?
I can see this new VESC doesn't have a switch to change the sensor voltage from 5v down to 3.3v, has this feature been remove or am I missing something?
Cheers,
Ali.
