关键词: 动态控制, 故障, 检测, 诊断

Abstract:

Firstly, considering the failures′ complicated combination modes and temporal characteristics, the authors raise a more practical assumption that the elements′ modes can transfer but only from normal to fault at any time to replace the general assumption that the modes are unchanged in a diagnosis process. Moreover, based on this assumption, it is pointed out that the model based diagnosis methods can be used as a general tool for this kind of system, and the diagnosis methods based on fault modes as an additional one. Secondly, based on the above consideration, an integrated failure detection and diagnosis strategy is supposed for a complex dynamic system which has the advantage of both artificial intelligence and mathematic algorithms, and it is also realized for a flight control system.

Key words: dynamic control, failure, detection, diagnosis