From what I can recall from my optimal controls course using on/off is actually an optimal controller. Edit: It's called a bang-bang controller [0] [0]: https

From what I can recall from my optimal controls course using on/off is actually an optimal controller. Edit: It's called a bang-bang controller [0] [0]: https://en.wikipedia.org/wiki/Bang%E2%80%93bang_control https://en.wikipedia.org/wiki/Bang%E2%80%93bang_control