Search found 16 matches

by BlakeCarmichael
31 Oct 2017, 00:23
Forum: General
Topic: VESC HW Redesign (VESC Mini?)
Replies: 22
Views: 11656

Re: VESC HW Redesign (VESC Mini?)

Any updates on this project?
Would it work with a 7s battery and maximum input current of 10 A?
by BlakeCarmichael
30 Oct 2017, 16:21
Forum: General
Topic: miniaturizing the VESC for smaller motor and less functionality
Replies: 1
Views: 1035

miniaturizing the VESC for smaller motor and less functionality

Hi all, I am working on a project that utilizes a 300 W motor (may upgrade to ~400 W) and I have been using the VESC. I am using UART from an Arduino Mega to control the motor. I would like to detune the VESC such that it is cheaper and smaller than the current VESC. The BLDC tool and open-source na...
by BlakeCarmichael
19 Sep 2017, 15:36
Forum: General
Topic: BLDC Tool Realtime Data to Excel File
Replies: 5
Views: 2182

Re: BLDC Tool Realtime Data to Excel File

Alright, I've resorted to the Arduino datalogger. But, when using the arduino library for reading from the VESC, I found that it takes up about 26% of dynamic memory. So I am going to move from my Nano to a Mega. Is there any way to reduce the memory usage of this library in case I want to move back...
by BlakeCarmichael
18 Sep 2017, 16:54
Forum: General
Topic: BLDC Tool Realtime Data to Excel File
Replies: 5
Views: 2182

BLDC Tool Realtime Data to Excel File

Hi all, I'm hoping that there is a way to record the Realtime Data samples into a CSV (or excel) file. I read this: http://www.electric-skateboard.builders/t/recording-data-from-vesc-summary-of-tools/7020 , which describes how to log the data using an Arduino and an SD card, but I would much rather ...
by BlakeCarmichael
06 Sep 2017, 22:12
Forum: General
Topic: Power Limiting instead of Current Limiting
Replies: 25
Views: 4340

Re: Power Limiting instead of Current Limiting

Is it possible to read the battery voltage via UART to the Arduino, then write via UART from Arduino to the VESC to modify the battery current maximum with an inverse relationship as the battery voltage drops? I have been using the VescController library which does not include reading from the VESC,...
by BlakeCarmichael
06 Sep 2017, 22:09
Forum: General
Topic: Power Limiting instead of Current Limiting
Replies: 25
Views: 4340

Re: Power Limiting instead of Current Limiting

Not sure why the motor current limiting is giving you trouble. It works well in my e-bike, during testing I found that motor currents over 75A caused my motor mount to flex too much, but by limiting the motor current to 75A everything is fine with full throttle applied. How is your VESC set up? How...
by BlakeCarmichael
06 Sep 2017, 20:41
Forum: General
Topic: Power Limiting instead of Current Limiting
Replies: 25
Views: 4340

Re: Power Limiting instead of Current Limiting

Also, when I ran the FOC detection, I got R = 0.03448ohm, which can't be right because that would give me a max motor current of (edited) I = sqrt(177/(.03448*2)) = 51 A...
by BlakeCarmichael
06 Sep 2017, 20:32
Forum: General
Topic: Power Limiting instead of Current Limiting
Replies: 25
Views: 4340

Re: Power Limiting instead of Current Limiting

...that's why i mentioned setting the absolute max to 35A... Yes, I tried that. It completely brings the motor to a stop after a very short period of time, giving the fault code ABS_OVER_CURRENT, and repeats that. I have to raise the absolute max to about 70-80 A before i get around the fault code.

Go to advanced search