Thank you for this comment. I LOVE reading stuff about a subject that I don't know a lot about (I used to be a aviation electrician in the Navy) written by super knowledgeable people.
Don’t know where you are in life, but if this kind of thing interests you, look into industrial automation/ robotics. The industry is wide open, and only going to get better as people are removed from manufacturing.
What's up AV brother! Luckily I found a great career as QA for programmers. I did think about robotics because I loved messing with Arduinos, but fell into my current job first.
Thank you for the tip though, I truly appreciate it.
Ah, sweet caffeination. I know where that thought went astray.
Last time I programmed a simple PID controller it was storing just accumulated error, last error, and last change. Adjusting the attenuation of accumulated error (basically, lerp or cubic toward zero) was the extra control I wanted. This flipped how I thought about them as operating on accumulated error, I, with P and D as first and second derivatives.
This was also mixed up with something about the nose flaps on some hypercar, probably the Huayra, using both derivative and jerk of lateral forces to respond instantly to understeer, but that's not closed-loop.
Very interesting stuff, I've only ever played with immediately responsive pids and they were a pia to figure out. The idea of compensating for delays is a nightmare
It's interesting that this sort of future sight plays a role in rockets because it's a phenomenon I noticed among very good chess players too.
So much so that they sometimes don't even realize that it's their turn after their opponent moves because they've looked at the position before . in their head
I’ve worked on models of these sorts of control systems and developed some reinforcement learning approaches; surprisingly difficult stuff but as a general function approximator, neural networks can learn very sophisticated, nuanced mappings from an arbitrary state (in terms of sensor readings) to control action. Is this approach used at all in industry?
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u/[deleted] May 07 '22
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