5 ms·
This looks like they simply reinvented PID control. The inputs to the beyond are desired states minus actual states, which is basically how PID works.
by actinium226 4mo ago
This looks like they simply reinvented PID control. The inputs to the beyond are desired states minus actual states, which is basically how PID works.
- gpvos 4mo agoI assume you mean proportional–integral–derivative control. https://en.wikipedia.org/wiki/PID_controller https://en.wikipedia.org/wiki/PID_controller
- KolibriFly 4mo agoThe useful insight is not "compare desired state to actual state"; it's deciding which state to control
- dchristian 4mo agoNo, the bicycle is unstable. PID doesn't work well there. In addition, it is controlling a coupled 3D system (which is unstable). This is much more than 3 PID controllers.
- taneq 4mo agoPID works fine if you parametrise it right, which is what this paper does. Consider the variety of inverted pendulums etc. that are used as as examples to teach PID control.
- literalAardvark 4mo agoBicycles are stable. In fact you need zero neurons to run a bicycle, all it needs is "power" and a large enough circle to run in.
- malfist 4mo agoIf you can't use a PID for unstable things, why does cruise control exist for motorcycles?
- pinkmuffinere 4mo ago> No, the bicycle is unstable. PID doesn't work well there. This is just totally wrong. Stabilizing an unstable system is usually the first goal of controller design. Different systems do require different controllers, but pid is _very often_ perfectly adequate. It’s probably the most used controller structure in general.