Tuning PID Constants Over a Range

[Jchau]

I am by no means an expert with PIDs, but in this I would suggest turn down the I constant. I ramps up over time, so with the greater degree of movement, it takes longer for the PID controller to get to the target value. Therefore, the I constant may get too high.

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[Knufire]

Could you clarify what you mean by "didn't work"?

Was the response not fast enough or did it never reach the intended goal value?

[botster]

Originally Posted by Knufire

Could you clarify what you mean by "didn't work"?

Was the response not fast enough or did it never reach the intended goal value?

If we tuned the turn for 5 degrees, then the robot would be too slow and never make it to 25 degrees. If we tune the turn for 25 degrees, the robot would overshoot the 5 degrees.