General discussion

Hello!

I am using some VESC based controllers (from flipsky) on a prototype boat, which is equipped with submersible brushless motors.

I was rather shocked (pun intended) by power in the water from the motors when at zero throttle. I later measurd 12v on each motor lead again the battery's ground (Battery is around 29v) when there is no throttle.

Is this normal operation of brushless ESCs, VESC or is something odd happening? Or could this be a function of the break? I may have it enabled.

Dear All

I would here ask if someone had experience with dual VESC and computer like NUC or Jetson or Raspberry.

I would use VESC for my new project and interested to have your suggestions to decide best suitable options in terms of computer.

Thanks. Regards.

Andrea

Hey everyone,

I'am trying to utilize the VESC infrastructure in conjunction with a generic 350W 6.5in hoverboard hub motor (27 poles / 30 magnets) at 10s (~37V) in a robotics project. My goal is to reach the slowest possible RPM with closed loop control.

Hi, My configuration is he next, a drone controlled by pixhawk that communicate through UAVCAN to 4 Vesc which command each a motor. i'm having issues about BLDC and FOC nether of them work. I try the parameters detection for both mode, I get parameters but when i try them the motor don't spin correctly: I tried to tune them myself but results are not great.

Is there someone who work on something similar and can gives me some tips? Thank in advance.

Hi

Is it possible to connect the phase wires of two vescs in parallel to run a single larger motor? The application is a boat so no regen or braking needed just power.

Can anybody tell me what i should do to make them syncronized. I have a Vesc 6.0 from boundmotor and im using vesc tool 1.29

https://youtu.be/lV2ZTvsb-m4

I'm trying to use a VESC 6.0 board in a slightly different application. 

I'm trying to build a gasoline/ electric hybrid. Is there a way to set the throttle curve based on time? Something like 0-100% throttle functions normally for the first 10 seconds, then tapers off down to a 0-(-5)% or so for a regen based on battery charge voltage? 

Basically think of it as I want the BLDC motor to function as a boost for 10 seconds every time the throttle is applied from 0%, then taper back off to charge the battery pack from the Gasoline power plant.

Hi, 



I have been reading about protecting mosfets for 100V designs - and I am a bit confused,

different app notes have different suggestions and I am not sure as to the purpose for all of them,



I am looking to create a high reliability design - the one that should not fail, what are the protection mechanisms that I can put in place? - essentially asking how to design the power stage.



Here is what I have so far:

Hi!



I wanted to isolate (optically ?)  the VESC control board from the power board, since I plan on working at 300V DC, and here is what I have so far:

- Digital and PWM signals go through: A4506 opto isolator (HCPL-4506)

- Current sense through ACS series (712/758 - depending on current requirements of the design)