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Controller type for BLDC fan motor

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New ( offline )
Posts: 2
Posted: 2018-04-08 19:55 
Hi All,

I am new to RC and robotics and I am needing some guidance in a project I am currently undertaking, I am supercharging a small 4 stroke engine using a
3-phase BLDC motor with the following specs:

Voltage: DC 8-16.8V
  • Maximum current: 25A
  • Maximum power: 400W
  • Maximum thrust: 1200g
  • Maximum speed: 52000 RPM
  • KV Value: 3100

I have all the mechanical and induction side sorted but need help with a suitable motor controller, it could be driven via a manual potentiometer or if possible electronically by using the carburettor TPS circuitry which has a resistance range of 1-5K Ohm??? Ideally the motor would need to respond to throttle change as quickly as possible to prevent lagging, I am thinking along the lines of an RC motor controller or 3-phase BLDC PWM. Any help in the right direction would be much appreciated.


Thank you :)


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Guru ( offline )
Posts: 3861
Posted: 2018-04-09 10:12 
Hi ChaseM

If you want your system to react automaticaly to the TPS sensor you will need something to acquire the data and process it.
The BLDC motor / fan is a ducted fan system from R/C ?

:)

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New ( offline )
Posts: 2
Posted: 2018-04-09 19:11 
Thanks for your reply DiaLFonZo, yes exactly what I need an electronic speed controller that has a manual potentiometer, I would simply remove the pot. and connect the TPS signal in its place, my understanding is the TPS is just a potentiometer. I will take a look around the RC stores and see what I can find


User avatar
Guru ( offline )
Posts: 3861
Posted: 2018-04-10 11:17 
If your TPS is connected to the ECU, you will not be able to connect it directly to a controller board.
Your signal will need to be acquired by a Microcontroller and process to send the right command to the ESC.

_________________
Eric Nantel - DiaLFonZo
UAV/Drones Specialist

RobotShop inc.
Putting Robotics at your service!™
www.robotshop.com

Lynxmotion
Imagine it. Build it. Control it.™
http://www.Lynxmotion.com


 

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