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Calculate required actuator deflection gyro data?


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#1 mikedamike

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Posted 01 April 2012 - 02:02 PM

i am developing a flight control system. I have an input of 3 gyro measurements ( pitch rate, roll rate and yaw rate). once they have been processed how do i calculate the required actuator deflection to achieve the required angular rates?

I am grateful for any help.

Thanks in advance
Mike

#2 peabody124

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Posted 01 April 2012 - 02:18 PM

We use a nested PI controller. One that controls rate and one that controls attitude. It's somewhat described here:

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Testing crumple zones

#3 mikedamike

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Posted 01 April 2012 - 02:45 PM

So am i right in saying that the demanded angular rate goes into the PI controller an comes out an actuator deflection ?

#4 peabody124

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Posted 01 April 2012 - 02:52 PM

Yep. In the simplest form (just P) deflection = rate * constant where you empirically find the highest constant that behaves well.
Testing crumple zones