General discussion

Hi, 

1. I have set my vesc regenerative brake current max to -5A, as i have a 5Ah battery (LiPo) and i know that charging a battery at more than 1c is not recommended 

for its life span. My problem is that now my brake is just not working after 1 or two seconds of trying to brake (I figured it's because it passes the max current),

is my problem that the battery is too small, or am i missing something?

2. Im planning to switch to li ion, i would be glad to know if the answer to question 1 is same for lipo and li ion.

Hii, I have a question about the two different maximum currents to configure in the VESC-Tool: Motor_Current_Max and Absolute_Maximum_Current.
What event could cause the current to exceed the Motor_Current_Max?
I tried to block the Motor and measured the current with a current probe on my oscilloscope but it would not exceed the Motor_Current_Max of 40A in my case. (VESC4, BLDC Mode with hall sensors)
Does the VESC use this additional current range to provide more power for uphill, start etc. or does this just happen by accident?

Thanks

Hi,

I started the VESC tool and its Wizard function. I gave all requested parameters and let the ESC make its measurements, motor spun and burred and did all I expect it should and finally got the results of Ohms, inductance and flux etc. Stored them to a ESC memory. Next I configured the input, PPM which I took from a RC receiver. I manage to map the range so everything looks fine. 

Next I try to spin the motor with my throttle, motor gave slight burring sound but did not spin at all !?!?

What is the current recommended CAN implementation to develop robotics applications that include 10+ VESC ESCs?

Hi Benjamin,

For the need of an electric mountainboard race, I gave BLDC a try on my MTB, which I used in FOC until now.

I would say I'll never come back to FOC for all terrain rides.

It feels like the board is direct linked to your mind. No latency as FOC can bring.

Few riders still in FOC during the event switched also to BLDC and then could pass some sharp turns easily when they struggled to manage them with FOC mode.

Hi all!

Maybe its easy, but i dont know how))

I cant start any motor with esc vesc mini4. 

I tryed wizard, its dont recognize motor. Try to another esc the same truble.

Video https://photos.app.goo.gl/vaA5WQC52XfppZet6

Please help)🤓

Hi All,

This is my first post on this forum and my English is far from perfect so apologize for any mistake.

I'm doing a project were VESC 6 drive a 2.4 Kw 48V sensored motor that will act like a mill motor , the machine is in real a robot with an hydraulic arm with 3 DOF with at the end the mill motor.

All the boards that control the machine are controlled over a CAN network 

What is the recommended way to implement CANbus communication for a robotics application with 8-10 VESC motor controllers on the bus?

Our CAN bus controller is a Linux based single board computer with a PiCAN 2 - CAN Interface board running Ubuntu and ROS.

I see that there is support for Libcanard / UAVCAN  starting with firmware 3.45 but I am not sure how much of the protocol is implemented.

I also saw this implementation

Hello.

I set up a C80100 6KW motor on a VESC 6 with the FOC wizard.

It automatically set the phase current to 110 A That seems a bit high to me. I know the hardware limit is 120 A.

How safe is it to run it that hard ?

Does anyone have any experience pushing it to the limit ?

Im using it to run an ebike at 12s. A failure would not be good.

Greetings,

Bor Zabric

Hey there,

I'm currently trying to replace my old brushed dc motor with a sensored 6374 motor.

So far so good. I'm learning a lot. Now a have some questions: