Vehicle Upset Detection and Recovery for Onboard Guidance and Control

摘要

This paper discusses the development and testing of an upset recovery architecture that is applicable for both piloted and autonomous recoveries. The architecture was first developed for unmanned vehicles and intended for fully automated implementation. The architecture was extended for use in manned aircraft and, in particular, for situations in which recoveries are being manually flown by a pilot This extension required development of display technology for presenting recommended recovery guidance to the pilot as well as modification of recovery strategies to make them suitable for execution by a human pilot Most recently, the architecture has been extended to accommodate off-nominal vehicle dynamics (e.g., due to actuator failures) and has been structured specifically to facilitate implementation without modification and recertification of existing flight control software. The approaches have been tested in multiple pilot-in-the-loop simulation experiments, which have shown both favorable pilot opinions and improved recovery performance.