I'm trying to select a suitable K value for this roll control autopilot, based on:
Instead of the Gyro, I've also just considered a negative unity proportional gain feedback. How do I select the appropriate controller gain K for the system? (I'm feeding a step impulse into the system). I know that for each aircraft it would be different, for a fighter jet you want quick response times, but maybe not so much on a commercial airliner. What I'm trying to find out/understand is there design criteria/a method to selecting this value?
- Is there a overshoot(%) I should aim for?
- Is there a required damping ratio set?
- Or do I eyeball it, and find a balance between the time to settle and overshoot(%)?