how to control hydraulic actuator ?

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ayoub reffai 2022-6-30

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编辑： Sam Chak 2022-6-30

Hello everyone

iam again in need of your hel^p

im trying to model a hydraulic actuator in matlab , but the thing is its has to be commanded by a PID , i was wondering in you can help me out , its wont command

the screens are in joint file

please help

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Sam Chak 2022-6-30

编辑：Sam Chak 2022-6-30

Hi @ayoub reffai

Didn't notice this previously. Anyhow, can you post the equivalent mathematical model that describes the linearized dynamics of what is shown in your Simscape model? For example,

If you have the original control-affine nonlinear model, then also can.

If you don't know the model, you can probably try using this linearize() command. See Example here:

https://www.mathworks.com/help/slcontrol/ug/linearizing-nonlinear-models.html

But I notice a something labelled "PI" here. If that is related to your PID, then the "D" must be missing. Would you point out where your D is?

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Physical Modeling Simscape Isothermal Liquid Models Upgrading Hydraulic Models to Use Isothermal Liquid Blocks

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