Creating and Tuning a PID controller with Python Simulation

The long-awaited PID Part 2 video!
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TimeStamps
00:00 Setup
04:53 Creating a simulation class
09:10 Rocket class
15:33-PID class
20:01 PID loop
28:02 PID Tuning
29:20 Plotting results
36:28 Conclusion
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Thanks for watching!!!!!!!!

[IntRocketLaunch]

Great video guys! I can tell a lot of effort went into this :)

[Ameliaross]

So you find the self.error at 20:51 by subtracting where the rocket isn’t from where it is. Therefore the missle knows where it is from where it isn’t

[krlospelaez]

Thanks you guys! I found this very useful. It gives a better understanding about PID and how to tune it :)

[userjdufer]

This is so valuable for someone who just wants to see a practical intro to pid control !!! <3 You are awesome!

[adamdude]

Man great video! I was looking at BPS space and his videos but he doesn't go into the software stuff as deep as you guys do. Are you going to make a video about 3D orientations and quaternions? Or maybe your arduino code?

[flwi]

That's a _very_ good explanation of pid controllers imho. Didn't know how to tune them and I like your approach of quickly designing a simple simulation to get some numbers.
Don't know how I ended up here, but I like it in this rabbit-hole ;-)

[blitz]

Really cool channel, keep going, subscribed!)

[CondorSWE]

Attitude control for a typical rocket only needs a proportional + derivative term. Lack of integral on attitude can be compensated by an outer guidance loop.

[datastako]

nice vid! very informative..thank you!

[simonabunker]

Great video! Would it be worth writing a flight computer in micropython so you could use the actual flight module in the simulation?

[vaibhav-_-]

which development board you are using????

[adamdude]

Is the Ziegler Method appropriate in this sort of application? I read somewhere that it's mainly useful when you have a slow process. Isn't a rocket launch an inherently fast process?

[mostafaelshafie]

hey, why not use matLab's simulink for the simulation instead of python?
what do you guys personally feel is the advantage of python in this situation?

[milindsharma]

Hi guys!!

Absolutely loved this video, and thinking about joining your Discord.

I have a question about PID controller algo's in Python. Aside from the obvious issue of most microcontrollers needing code in C++ or C, would Python code even run fast enough to really be of any use in an actual thrust vectoring system?

[jonathanlowe]

Thought you were going to use state space?

[Extorc]

Umm my country isnt supported in your donation on the

[rogervanschie]

Shouldn't 'def set_dy(self): self.dy += self.ddy' be 'def set_dy(self): self.dy += self.ddy * TIME_STEP'? Same for 'def set_y'. As you are integrating acceleration over time to get velocity and integrating velocity over time to get your position.

[bnjmn]

How did you get the desired gains? This can’t be just trial and error right? Or did you use AI to compute the ideal gains?

[donharrold]

Seems like massive effort when you could have got something similar with Matlab in a few minutes

[DietBroccoli]

You really ought to read PEP8. Your style is both in defiance of convention and inconsistent.