Nonlinear model of a flywheel vehicle

A flow-coupled flywheel vehicle was proposed which has simpler configuration, fewer components and easier control method. And it was confirmed that this system had enough capability to recover vehicle kinetic energy that might otherwise be lost as heat during braking. Then, its nonlinear and linearized model was developed respectively and experimental research was done. From the comparison of the nonlinear and lindarized model, we could know the linear model had bigger gain and better rapidity when the system operated near the zero point and its error would become larger when the system operated far from the zero point. Finally, experimental results shown that the nonlinear model could describe the practice system in the whole working scope.