Fault-Tolerant Attitude Control for Hypersonic Flight Vehicle Subject to Actuators Constraint: A Model Predictive Static Programming Approach

Abstract

In this article, an improved model predictive static programming (MPSP)-based fault-tolerant control (FTC) scheme is proposed to solve the attitude tracking control problem of the hypersonic vehicle (HSV). In the field of HSV, the MPSP technique has been applied successfully to solve guidance problems of its high computational efficiency. While we try to address the attitude control problem directly using it. The attitude model of HSV with uncertainty and disturbance, together with the fault model of aircraft body injury, is constructed first. The actuator of HSV is suffering from input constraints. Then, a feasible attitude control trajectory is generated by the improved MPSP method. The methodological innovation in this article extends the MPSP technique to the direct control of the attitude of HSV both in the fixed and flexible final time. By utilizing the improved MPSP technique, the complexity of processing multiple constraints and the computation is reduced. The effectiveness of the designed FTC scheme is demonstrated through simulation under different cases with actuator constraints.