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Unread 30-01-2008, 22:51
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keeping orientation with gyro

I am using Kevin Watson's sensor code, And I want to keep the robot in a constant orientation (We have mecannums).

My current method tends to over correct while strafing, and starts to oscilate. Has anybody done this in the past? Tomorrow I am going to do some testing to get some values for an equation that will take into account rotational velocity and determine a coast down time so that the robot doesn't overshoot so much.

Currently I find a turn value with
turn = .14111*tempgyro+127;
and then put turn through my limit function.
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Unread 31-01-2008, 01:41
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Re: keeping orientation with gyro

The limit function should be a closed-loop feedback function, it sounds like. And if it's oscillating, it sounds like you're using just Integrated control (from the PID term you keep hearing). Try a good whitepaper on that subject...
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Unread 31-01-2008, 23:49
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Re: keeping orientation with gyro

I got it, and it is beautiful. This was a good day.
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