Virtual Motor Dyno - Efficiency maps for any motor

Pedrodemio

100 W
Joined
Jun 30, 2015
Messages
115
Location
Brazil
Hi everyone

This is a project that I've been wanting to do for a long time, a virtual motor dyno that from just a few measurements enables us to plot efficiency map, total losses, copper losses, core losses and output power

I made this intended for smaller motors for electric skateboards, but problems with the current measurement at low values in the VESC controllers that most of us use are causing a bit of a headache

Anyways, think this will be use full for hub motors and all that

Cheers

This are the examples using a 6355 190Kv motor, takes it with a grain of salt given the problems with current measurement I'm having

A few more details here

https://forum.esk8.news/t/esk8-motor-dyno-requests-and-discussion-serious/33798

TorqueBoards 6355 190 Kv - Copper Losses.pngTorqueBoards 6355 190 Kv - Core Losses.pngTorqueBoards 6355 190 Kv - Efficiency Map.pngTorqueBoards 6355 190 Kv - Output Power.pngTorqueBoards 6355 190 Kv - Total Losses.png

The forum doesn't let me upload MatLab files, so here is a google drive link

https://drive.google.com/file/d/1HNUhrTnl8Uq-_ls3xxozPIbX_bjZMn2m/view?usp=sharing
 
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