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Using Multiple VESCs in Robotics?

Submitted by Kristof123 on Sat, 2023-07-15 19:00

Hi, I plan on using multiple VESC controllers for a robotics application. However, it turns out that the CAN bus to communicate between the controllers is too slow (only 1 MBit/s). CAN-FD would be fine, but it doesn't seem to have been implemented. Is there a way to make the controllers communicate at a high data rate (>1 MBit/s)? Thank you!  smiley

Dual Motor Tracked vehicle

Submitted by minimivic on Sat, 2023-07-15 18:54

Just starting out so I have probably made a load of mistakes already.

I'll be using a Flipsky 6.7 dual VESC and 2 x 6374 Alien Power 200KV Sensored (hall) outrunner motors. Battery will be a 36AH 24v Lifepo4 all PPM controlled via 2 RC channels (left and right track)

The project is a radio controlled Tank in 1/6 scale, I need forward and reverse but no regenerative braking or even braking as such. I'm changing from 350w DC motors and esc just to try it out.

e-bike hubmotor problem

Submitted by Ratereducer on Fri, 2023-07-14 23:35

Hi, I'm new to vesc and just encountered my first problem. The e-bike hubmotor is not running in FOC mode, it is just making weird noise. It is a mxus xf40-30h 1,5kW motor.

I made a video:

https://youtu.be/iEDYBRGQMC0

The FOC setup wizard detects the motor and turns it, everything looks fine and when I select sensorless the motor is turning. 

Pitting VESC Six EDU against a Castle Creations ESC - the Castle is winning?

Submitted by jschall on Fri, 2023-07-14 18:58

I am evaluating VESC using a VESC Six EDU. The application is propulsion for a solar powered fixed-wing UAV, so efficiency is the primary metric on which I am evaluating VESC.

The motor is a Scorpion S-5028-220kv. When VESC performs parameter identification on the motor, it reports: R=12.5mOhm, L=18.59uH, Ld-Lq=5.62uH, lambda=3.651 mWb. On my scope it has very sinusoidal BEMF when spinning with a drill.

The motor is mounted on a thrust stand with a propeller, and I am comparing to a Castle Creations Phoenix Edge 120HV using the following methodology:

a (cautionary) tale of 4 dead VESCs and question of repairability

ligi's picture
Submitted by ligi on Fri, 2023-07-07 14:32

I was happily using a VESC MKIV for long time on my cargo-shuttle. Unfortunately recently I had a cascading failure that was leading to 4 dead ESCs. I was changing spokes on my rear wheel with the motor - while doing so I must have damaged the cable going into the motor and motor phases with 48V where shorted to the HAL sensors. This made my old trusty MKIV go bad. Unfortunately initially I did not know what the root cause was - and just thought the controller died of old age or some freak error.

Settings

Submitted by aquamarin on Sat, 2023-07-01 16:11

Hi guys. I'm new to this and I have a problem that I've been solving for 2 weeks and I can't solve it easily, I can't get more power in the water than 30A(e-foil) Can anyone help me set it up? Esc-VESC-CONTROLLER WITH 300A 75V, Battery-12s 48V, 35Ah, Std discharge current 100A, Motor 5680, 540kw, 48V. Receiver and transmitter FERO. Thanks in advance. Marin

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