Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; AntiBotCaptcha has a deprecated constructor in /homepages/8/d680172117/htdocs/QA/qa-plugin/q2a-captcha-antibot-master/AntiBotCaptcha.php on line 22
How to modify a bushless sensoreless motor to a sensored one? - Electronoobs Q&A

12 Online
0 Member And 12 Guest
Today Visits : 1531
Yesterday Visits : 2810
All Visits : 317036

Welcome to Electronoobs Q&A, where you can ask questions and receive answers from other members of the community.



Categories


+1 vote
Hi,

I need some help for my new project. I want to build a RC car with 4 hub motors. I want to Control each Motor seperately with an Arduino Uno. So far so good. I purchased 4 brushless and sensoreless 4112-320KV Turnigy Multistar 22 Pole Brushless Multi-Rotor Motor. I want to increase the torque in the low or no rpm range by making it to a sensored motor. So here are my questions:

1.) I want to place 3 Hall sensor switches with an angle of 15 degrees outsde of the outrunner turning "housing". Do Hall sensors catch enough magnetic field to detect the Motor position? Or do I have to place them inside directly to the magnets?

2.) Since between each sensor is just 15 degrees, I guess the sensor position needs to be very accurate. Do you think this is possible?

3.) Does somebody know what the specification of a commercial brushless sensored ESC concerning the sensor input is? I there a "usual" pin assignment? What is the required input voltage?

Thanks a lot for your help.

Best regards

Janko
asked by (130 points)

1 Answer

0 votes
1. I can't say directly, you have to make tests. But, in any way, you would haev to amplify the hall sensors line K did in my SENSORED ESC tutorial. And with that you might get good signals.

2. The degrees of the sensors is given by the amount of poles. If the motor is big, you could easily palce the sensors at 15ยบ

3. Usually sensor signals are 5V.
answered by (33.8k points)
...