基于Stateflow的自动飞行模式转换逻辑研究

Mode transition logic of automatic flight control system based on stateflow

现代民用飞机的自动飞行模式有很多种,且各模式间相互关联和影响,容易造成模式转换的混乱。为解决模式转换的混乱问题,对自动飞行模式转换逻辑进行了研究,分别梳理了飞行指引、自动驾驶仪以及横向和纵向模式转换关系。利用Stateflow搭建了自动飞行各功能的模式转换模型,同时利用Matlab的GUI搭建仿真的飞行控制板和自动飞行模式显示界面,模拟仿真飞机的自动飞行模式转换功能。最后通过预期的模式转换矩阵的方式验证平台中模式转换的正确性。

There are many auto-flight system modesin modern civil aircraft;they are interrelation and influence among these modes;and it is easy to cause mode confusion. To resolve the problem of mode confusion, this paper focuses on investigation about mode logic of automatic flight control system and summarizes the translation relationship of flight director, auto pilot, lateral modes and vertical modes. Utilizing Stateflow, we established the model of automatic flight control system functions;the simulated flight control panel &the display interface of automaticflight mode was set up by the tool of GUI in Matlab software;and theautomatic flight mode transition was simulated. Finally, the validity of the mode transition was verified by expected mode transition logic matrix.