Isn't what you describe a PID-controller: https://en.wikipedia.org/wiki/Proportional%E2%80%93integral%E2%80%93derivative_controller https://en.wikipedia.org/wik

Isn't what you describe a PID-controller: https://en.wikipedia.org/wiki/Proportional%E2%80%93integral%E2%80%93derivative_controller https://en.wikipedia.org/wiki/Proportional%E2%80%93integral%... AFAIK that is the common approach to solve this problem, but it still needs some degree of sensor accuracy?