Safety Requirements Analysis for Control Law Development of UAV Flight Control Systems

This paper investigates safety requirements analysis of unmanned aero vehicle flight control law development. A unified approach integrating failure hazard identification and control law applicability assessment is proposed for systematic identification of flight control law safety requirements from failures of both flight control system and other airborne systems. A human hazard analysis approach based on human/machine interfaces is developed for identification of safety requirements on control law logic design for preventing pilot operating error in flight. Application of proposed approach on a demo vehicle indicates that the approach proposed in this paper is effective in identification of safety requirements for flight control law development