Sloshing liquid fuel induces additional forces and moments which affect the performance. Vehicle dynamics coupled with liquid fuel slosh dynamics represents a broder class of underactuated systems. This coupled nonlinear system has been considered for the development of output feedback control using sliding modes. A sliding mode control (SMC) is one of the robust control approaches which yields robust performance against model inaccuracies and uncertainties. Design of SMC includes design of the hyperplane to yield the desired closed-loop performance and the controller synthesis to confine the...