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Unread 06-03-2012, 10:23
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JamesCH95 JamesCH95 is offline
Hardcore Dork
AKA: JCH
FRC #0095 (The Grasshoppers)
Team Role: Engineer
 
Join Date: Dec 2004
Rookie Year: 2001
Location: Enfield, NH
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Re: Problems with tuning shooters using AM basketballs on Practice Field?

Quote:
Originally Posted by DampRobot View Post
Could you explain to someone ignorant why controlling with voltage is so much better than PID? I would think that you want constant rpms on the shooter wheels for maximum consistency. More success with a less sophisticated control system seems a little counter-intuitive to me...
In a perfect world, a perfectly tuned super-fast PID control would be better than just about anything else. However, an open-loop voltage control scheme works well enough for what we need to do in FRC without requiring any tuning at all. This control has gotten 95 in the top 5% Hybrid OPR.

I think this is definitely a case of "the best is the enemy of good enough." At least for my team this year.
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Theory is a nice place, I'd like to go there one day, I hear everything works there.

Maturity is knowing you were an idiot, common sense is trying to not be an idiot, wisdom is knowing that you will still be an idiot.
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