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Dual motor setup for Turnigy SK8 V2 60A x 2 3~12S Twin Motor Skateboard ESC?

Submitted by fil02184 on Tue, 2022-10-18 04:07

Hey yall,

 

I'm trying to set up this ESC (link) with two motors. I have this flipsky remote connected to one of COMM ports over UART. I'm only able to get it to control one motor at a time (depending on which side of the ESC i plug it into) but not both. 

Vesc edu 6 with 2800Kv brushless motor speed control

Submitted by siklopentan on Sat, 2022-10-15 14:34

Hello, 

I am new to brushless motor control so forgive me if my question is incomplete or basic. I am currently building an autonomous race car on a 1:10 scaled car chassis. I am wondering if I can use 2800KV sensored motor with Vesc6 Edu for rpm control. 

My robot has:

2S lipo,

2800 Kv sensored motor ( https://www.hobbywing.com/goods.php?id=605&filter_attr=5435.0.0.0.0.0.0.... )

Help needed in controlling multiple VESC boards (multiple motors) with VESC ROS (need to debug errors)

Submitted by shreyas.srinivasan on Thu, 2022-10-13 08:13

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>

UAV motor BLDC detection fails

Submitted by Torbjorn on Wed, 2022-10-12 13:54

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.

Trouble Detecting ABI Encoder on VESC6/75

Submitted by jonathansel on Fri, 2022-10-07 22:34

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. 

Vibrations under hard regen

Submitted by gecko242 on Fri, 2022-10-07 15:03

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!

Overcurrent fault when braking

Submitted by maxhertz on Fri, 2022-10-07 09:38

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.

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