Using PID in autonomous to keep straight

[euhlmann]

Originally Posted by rich2202

Here is the problem:

PID presumes continuous measurements. If you are crossing the low bar with no jerky movements, then PID works ok for driving straight (our robot drives like a slightly drunken sailor).

Over the other Defenses, the jerkiness throws off PID. You will eventually head in the right direction (gyro), but you may be off track to the left/right.

You'd only be off by a few inches. That shouldn't be a problem.

We used proportional control to drive straight in auto, and we didn't have any problems.