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Have i bricked my flipsky FSESC 4.20?

Submitted by olletj on Sat, 2022-01-22 18:03

When i configured my FSESC 4.20 with vesc tools i tried to drive my e bike motor with the arrow keys. When I pressed the right arrow the motor spun up. Then I accidentally pressed the left key simultaneously. The motor  instantaneously locked up and the esc shut down and there was a burnt smell. It won't start again. I guess I just have to get a new one or does anyone have any suggestion? What happend to it? It seems strange to me that I could brick it using vesc tools. Had just been running for a few seconds and it hadn't gotten hot.

Can't connect my FSESC through USB

Submitted by digo_bob on Tue, 2022-01-11 04:31

Hi all,

 

I ran my FSESC 4.20 based on VESC 4 through VESC tools, updated the firmware, changed configs as I saw fit and configured input all good. After disconnecting, the ESC seemed to be working fine, it controlled the motor just as intended and reacted quite well to the input commands. However, when I tried to reconnect it to test a different input method, the PC wouldn't recognize the FSESC 4.20 anymore.

FOC parameter trouble

Submitted by CTSchorsch on Sat, 2022-01-08 00:20

Hey all,

as you know, i build a custom pcb for my DPV (something like https://www.carbon-scooter.de/scooter.html#mono). I use a outrunner 60kv motor with 40A maximum motor current.

In BLDC mode, it works fine out of the Box. I reach a maximum eRPM about 25k @95% duty cycle and 23A motor current in rpm controlled mode. The DPV is fixed with a cord, so i measured a static maximum power. But in BLDC mode the dpv sounds under water like a kitchen aid and i want to use FOC

PWM timer issues on high voltage

Submitted by pegasus-aero on Tue, 2022-01-04 01:39

Hello,

we are currently testing a slightly modified version of BESC G2. 

While testing, we faced a strange behavior. Under certain conditions, the PWM input signals of the gate drivers gets some kind of "unstable". In detail, the duty cycle is suddenly incorrect (too long) for individual pulses.

The circumstances under which this happens:

LoRa Support

Submitted by CTSchorsch on Fri, 2021-12-17 13:59

Hi all,

i started adding LoRa support to the vesc fw. Maybe someone else is interested in this and is more familiar with the firmware code :) and can help me to improve it.

It could be interesting for a long distance remote, maybe for some glider winches

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