How to get Non-linear state space equations of a model (including blocks of vehicle dynamics toolbox)?
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I want to get the non-linear state space equations of wheel block, taking the input as brake pressure and output as longitudinal slip. I want to design Sliding mode control for longitudinal slip control, therefore I need the non-linear state space model.
I have used system identification toolbox but it is giving only 6-7% best fit data which is not useful for controller design.
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Khaled Aljanaideh
el 10 de Sept. de 2021
Hi Kartikey,
There are currently no features in the system identification toolbox that generate a nonlinear state space model from input-output data. However, if you have a state space model of the system and you would like to estimate the values of some parameters of this model, then you can consider estimating a nonlinear greybox model, please see this documentation page:
There are several examples on how to estimate a nonlinear greybox model, please see this page
https://www.mathworks.com/help/ident/examples.html?category=nonlinear-grey-box-models&s_tid=CRUX_topnav
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