Optimization problem Full Car Model

Someone can help me optimizing a Full Car Model (linked below)? I want my model to optimize parameters (sunspension spring and damper) to give me an output most similar possible to experimental data I provided myself (profile of accelerations among time). I have already an input and I have insert an output but i cannot advance from here.

https://it.mathworks.com/matlabcentral/fileexchange/39542-this-is-updated-code-for-full-car-suspension-analysis-with-8-dof