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Unread 24-01-2004, 21:45
KenWittlief KenWittlief is offline
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PID control loops - feedback is our friend!!!

I've been talking (ranting:c) about this topic on and off on CD for a while, and a couple people have asked questions about it.

I went into some detail in a thread about castors, but thought this subject desirves its own thread.

Feedback is one of the most power tools you learn about in engineering - I stuck this thread here because it involves SW and HW and your controller and sensors, and it can get pretty technical.

I started talking about it in this thread:

http://www.chiefdelphi.com/forums/sh...751#post212751

but for the sake of the rest of the forum, I like to continue the discussion here - it applies to more than just using castors on your robot - it can be used if you turn your wheels to steer, to postion a robot arm, to control your robots speed, how fast it turns - you could even set up a control algorythm to drive your bot with a steering wheel, so that, when you turn the wheel ten degrees, your bot turns ten degrees...

if you take engineering in college you will learn about feedback and PID control systems - but I think we can use enough of a subset for what we do in FIRST to really make a difference in how well your bot responds to your drivers commands.

(PS. I searched before I posted this, the only threads I could find on PID loops were from previous years, and they are closed now)

Last edited by KenWittlief : 24-01-2004 at 22:33.
 


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