Semi-Active Vehicle Suspension

Hi,

I am trying to create a semi-active suspension for a quarter car model. I have created the state space equation and have been trying to solve it through matlab. However I am stuck with two problems # Solve MIMO through ODE # Convert MIMO state space into transfer function.

http://sdrv.ms/RzcJEb (link to document)

http://pastebin.com/q5PSf0i0 (code so far)

Please let me know how I can proceed forward or a link to a certain tutorial that will help me move ahead.

Thanks Shilp