How to plot Lyapunov stabity for a nonlinear system with 7 states

Hi, I am working on a nonlinear system ( Anti lock braking and active suspension system). My system has 7 states. Among 7 states 3 of them are braking and other 4 for the active suspension. I have solve numerically for the Lyapunov statbility. But I got stuck when I tried to plot the simulation to see whether this system is stable or not. I searched and found that Matlab can solve system upto 2 states. Is there anyone can help me on this to give me link or program about plotting the lyapunov stability in matlab?

I will be very grateful for your help.

Thank you. Shamim