Chief Delphi - PID Velocity Control

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Chief Delphi (http://www.chiefdelphi.com/forums/index.php)

- NI LabVIEW (http://www.chiefdelphi.com/forums/forumdisplay.php?f=182)

- - PID Velocity Control (http://www.chiefdelphi.com/forums/showthread.php?t=102897)

Ether

16-02-2012 13:31

Re: PID Velocity Control

Quote:

Originally Posted by j.cole (Post 1128127)

Doing the delta counts didn't fix the problem which was the jumpyness of the encoder values at a constant voltage.

At what encoder speed (RPM) were you seeing jumpyness of the encoder values using the delta_counts method?

j.cole

17-02-2012 10:55

Re: PID Velocity Control

(I just took the delta counts so I'd say it's RPS not RPM) But I tried everywhere between .5 RPS and 5 RPS and the variance is still the same. I want to say it has something to do with the rate TeleOp runs but I don't know.

Ether

17-02-2012 11:07

Re: PID Velocity Control

Quote:

Originally Posted by j.cole (Post 1128755)

If there's excessive jitter in TeleOp, try dividing delta_counts by the actual elapsed time instead of the assumed 20ms.

Is this for a shooter wheel or something else?

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