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Motor always accelerates to maximum speed

Submitted by zapshe on Sun, 2022-09-11 03:46

Forums:

I've been working with VESC and I had my motor working fine... a couple weeks ago. I have it hooked up to a microcontroller and I'd increase/decrease motor speed via PWM (PPM). When I first ever used VESC, I could press the brake button at the bottom and it would actually initiate brakes. Now it doesn't. I also now have no way to control the motor speed without setting the input for PID Speed Control (but I need regen braking).

How to keep motor at 0RPM

Submitted by zapshe on Thu, 2022-09-08 13:51

Forums:

Hey,

I've been working on a project where the motor will have pressure on it to turn. However, I want the motor to resist the force and stay stationary. Basically, instead of moving something, I want the motor to stop something from moving. Does anyone have a clue on how to accomplish this using the software?

Currently, I have the 75100 FSESC and I control the motor via a raspberry pi and a couple buttons.

Thanks!

FSESC seems to be speed limiting my motor

Submitted by 5amsung4 on Sat, 2022-09-03 18:50

Forums:

I'm very new to this so may have overlooked something but ama bit stuck. I'm using a Flipsky Mini FSESC4.20 connected to a 6S 65C lipo battery and a 6374 190Kv motor. I went through the auto-setup and that seemed to go smoothly but when the FSESC connected to my VX2 remote and i hit the throttle it only spins up to 6.6 mph and then sort of stutters to stay at that speed. Im also getting no readout on my laptop when its connected but idk if that normal. Keep in mind that i may have missed something really obvious so don't hold back from being pedantic when answerring.

Understanding FOC Wizard Innerworkings

Submitted by gravity99 on Thu, 2022-08-18 22:24

Forums:

While setting up 2 motors via serial + can forwarding I noticed that during the last stage of Setup Motors Foc's Run Detection the motors seem to turn very smoothly and slowly. I have tried to replicate this via RPM, Duty, Current and Pos control and have been unable to do so. Looking through the code I similarly failed to find what commands this magical wizard uses. Furthermore I have modified the code to print all commands sent to serial via vescinterface.cpp and nothing is sent during these movements.

Vesctool otg

Submitted by meashman on Sat, 2022-08-06 10:05

Forums:

Would be a nice addition to the mobile app to have the option to use my phone to connect to the USB otg for firmware or setting changes instead of my laptop as it's a always a rock solid connection.

My experience with the BT function is hit and miss, sometimes I have no end of trouble just trying simple changes, I'm resorting to installing some micro USB extensions and tucking them away outside the enclosure. I'm getting over the BT function, I didn't notice this before with 5.2 but I do with 5.3.

 

Different rpm when using 3 vesc with can-bus

Submitted by ewakegermanyhq on Wed, 2022-08-03 17:03

Forums:

Hi everyone,

 we use 3 vesc 75/300 with can-bus config (1 master, 2 slaves).

All 3 have identic motors but on one we have big difference in RPM (50% lower).

Configuration is: master in middle and the outer ones (left and right) are set as slaves.

Running auto-detect-function identifies one motor to lower power-values. Why? 

brs,

Peter.

 

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