General discussion

Hello,

I want to issue RPM commands through UART, but i would like the VESC the limit the amount of acceleration it uses because I have observed my wheels tends to slip on the floor depending on the load on the cart i'm trying to pul, in particular while turning left or right (vesc powers a 2 wheel drive vehicle which then pulls a some sort of a cart).

I did not find any obvious way to limit the acceleration, except maybe for "positive ramping time" (acceleration) / "negative ramping time" (brake)

Hi

one problem with my bike is still open which is:

when I do a instant startup (0-100%) the (12kg BLDC) motor starts and the red LED is blinking and the acceleration stops and a fault seems detected with no load attached, so only the 12kg wheel has to be accelerated.

When I look into my PSU I see that shortly (100ms) it consumes a max of 13A and not more (20A is defined as Battery max, while motor max of 50A is left by default, the PSU is unrestricted and provides 120A with the 30V I tested) so overcurrent does not seem the fault at all.

Hey guys , if this post is in wrong topic , then i am really sorry for it , i am new here. Now what's going on ....

I have Dual VESC setup (with 2 motors) ... i am communicating with master over UART. It looks like its working.

But slave doesn't respond ... or im not even trying with second VESC i think ... because i am not using any ID selector for VESC or anything with CAN. 

I am using SolidGeek's libraries. (https://github.com/SolidGeek/VescUart)

Hi

Is there a cruise function (for bikes) implemented, so the throttle does not has to be pressed all the time? The "cruise" button is a trigger for a Sample & Hold for the actual throttle value and keeps it until the brake is pressed or the cruise button again.

Sam

I have designed and built a motor using completely new design features, It is unusually efficient and lightweight. I designed it for my 3 wheel car ( motorcycle in USA ). The motor weighs only 16 KGs and can deliver 100 HP at over 95% efficiency at 5000RPM. I would be pleased to put the design out for open source if anyone is interested, Currently I need a controller to run the motor at full power as my current one only handles about 25 HP. The motor is designed to run with a 400 volt supply, kV is 20rpm/volt.

Hello,

I'm not sure if these belong in the original or third party section, so I posted in general. 

I'm hoping to build a basic lightweight FOC ESC based on the VESC6 design for my RC aircraft and also hoping to avoid common issues/mistakes others have seen in the past when developing ESCs. Please let me know if you have any info or advice related to the following questions or anything else related. I should need about 70Adc in max with a 7S battery (~28V). 

Hi everyone

Today I checked voltages just to understand what might be wrong in the setup. As the motor looks good AND works in the "diagnose" area when I apply the duty cycle (,20-0,50 tested) just as it should and smooth (,35A at 29V with no load). Current works as well, just the RPM function does not produce a movement but rattles. With the cursor keys the motor does nothing but consuming power, so I didn't fiddle around with them, as I do not know what they should do.

The AS5047 encoder has 14 bits which means each revolution has 16,384 counts or the angular resolution is 0.02 degrees. Is this same resolution achievable by the motor as well? What are the limiting factors for motor position accuracy? 

Hello,

I'm considering buying a VESC 6, but i would like to make sure that I can still use an AS5047 encoder using the hardware spi pins instead of the sensor port, (like I'm currently doing with VESC 4.12).

Can anyone please confirm me that this option is still available in the VESC 6 ?

Thank you very much

Why is the PPM port on the vesc not able to decode PPM, and instead only works with PWM? It is very unclear if PPM is actually supported.