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RC Car BLDC - Hall Effect Timing Angle Calculator

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mendez
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RC Car BLDC - Hall Effect Timing Angle Calculator

Hello,

Please see image below. Sensored-BLDCs for RC cars allow you to adjust/tune the hall-sensor's angle. I wonder if someone can point me in the right direction on how to calculate the sensor angles. There are some electronics/analizers that determine the Sensor's angle but I will like to do it with a VESC. 

I honestly can't find any information online on how to do it; but I've been doing some testing and I think is all about timing comparision between the commutation and phase voltage. Does anyone know if I'm on the right track? 

frank
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If you use a VESC, you don't need to care about this. Just run the motor wizard and your sensors will be detected and configured.

mendez
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Hi Frank,

 

Thanks for your response; I want to learn how to find the sensor phase angle. Any advice/things I need to look for?

frank
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The VESC-Tool will determine the hall sensor parameters automatically and a hall table is generated.

Motor Settings >> FOC >> Hall Sensor Tab.

sp3swj
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:-)  "normal" esc can dynamically change  timing for increase power. CAN timing "angle" is mechanical adjusted on some motors. But electronic timing can be realised in a diferrent ways 

zero timing 

fixed timing 

bost timing (inramental)

turbo timing 

s.m.a.r.t. timing in Castle esc 

SmartSense in Tekin esc - motor smooth start on sensors, then sensor is ignored.

We can compare this to "dynamic maping" depend from RPM.

This is more complicated ;-)

https://youtu.be/Zq6nDXtaENc 

VESC work different way than "car" ESC and have not similar mode.

Now I staring use VESC in car and see big difference, i have a lot of "normal" ESC  like Castle Tekin ZTW SkyRc Graupner Spektum. One nice thing is SUPER  in  VESC !!! Thisbis FOC and a lot of software define protection.

 

 

 

 

 

 

Jarek sp3swj

sp3swj
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Hi   MENDEZ

I'm interested this topis too - and start search across forum:

https://vesc-project.com/node/1815

https://vesc-project.com/node/405

https://vesc-project.com/node/405

 

I will add more if something related I can find :-)

 

Jarek sp3swj