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This PR updates the values of the position PID of the wrist mk2 for all three joints. The values were found by automatically tuning the controllers on an identified linear model.

The improvements are significant:

Test on the wrist

wristtraj

wristerr

wristeul

Metrics

I moved only the roll DoF, so ideally I would like the others to be zero.
To compare the results, I can compute the MSE with respect to a zero reference of the yaw and pitch DoFs:

UoM: (deg^2) Before After
Yaw 0.234 0.0432
Pitch 0.126 0.0502

@mfussi66
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cc @pattacini

@mfussi66 mfussi66 changed the title Wrist mk2: Update position PID values of Wrist mk2: Update position PID values Sep 21, 2022
@pattacini pattacini merged commit 9eb5655 into robotology:devel Sep 21, 2022
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2 participants