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In this video I continue the topic of PID control. We walk through a simple control system and visualize how each of the three paths, P, I, and D, all address specific problems that arise in a typical system. I try to use very little math in this lecture because I want to show you that at the foundation PID control is very intuitive. Most of it you can reason through.

Errata:
11:50 I should have increased theta for just a moment and then had it come back down to the same position at the end of the graph. This is because the pedal position would settle at the same value if the speeds before the chase started and after catching-up are same.

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