X-File: Understanding VESC: the difference between "battery amps" and "motor amps"
#1
[Image: fancy-switch.jpg]





The information in this post was recovered from a back-up archive of posts by user @devin after some of the information was hidden, deleted or removed from the Electric-Skateboard.builders forum.


Link to Original Thread @ Electric-Skateboard.builders

------------------------------------------

Understanding VESC: the difference between "battery amps" and "motor amps"

@devin
2017-01-13 00:19:32 UTC

In any attempt to understand the VESC, one must grasp basic equations governing the software:

- battery amps x pack voltage = wattage into motor

- (motor amps x (% duty cycle / 100)) x pack voltage = wattage into motor

- battery amps = (motor amps x (% duty cycle / 100))

- % duty cycle = (battery ampsmotor amps) x 100

^ these ratios will be true at all times in any VESC data logging video

the meaning of "battery amps" and "motor amps" ... a constant source of tension in the esk8 community....

these equations may sound objectionable to many at first glance!

indeed they did to me. but i challenge anyone to show a single frame of a vesc logging video under throttle which does not match the equations.

ANY VESC logging video proves the fundamental difference in meaning between "MOTOR amps" and "BATTERY amps" in the VESC.

If anyone can DISPROVE any of these equations with a single logging video still frame which doesn't match the equations, please post here.

Also, please post any logging video still frames which do support the equations and basic definitions.

",1,0,http://www.electric-skateboard.builders/t/understanding-vesc-the-difference-between-battery-amps-and-motor-amps/15995/1,2017-01-13 00:19:32 UTC

[Image: 48-200-200-1.png]

[Image: 48-200-200-2.png]




[Image: h.jpg]
Reply


Messages In This Thread
X-File: Understanding VESC: the difference between "battery amps" and "motor amps" - by devin - 04-22-2017, 12:15 PM

Forum Jump: