基于Stateflow的民机自动飞行工作模式切换

Mode switching of civil aircraft's automatic flight systems based on Stateflow

Stateflow是有限状态机原理的图形化实现,可以实现连续状态间的切换.民机的自动飞行系统在各个飞行阶段对应着几十种工作模式,正是一个有限状态机系统.文中基于Stateflow对各工作模式及其逻辑关系进行了建模,实现了工作模式模型对其对应的控制律的调用,并对制定的飞行任务进行了仿真.结果表明,民机自动飞行系统工作模式间的切换可以通过Stateflow较好地实现.

Stateflow is a graphical realization for the theory of finite state machine; it can realize switching of continuous states. The automatic flight system of civil aircraft has dozens of modes corresponding to different flight stage; it is exactly a finite state machine system. In this paper, the models of work modes and their logical relations were built based on the Stateflow, each work mode could call corresponding control law, and the simulation of the formulated task was completed. The simulation results indicated that the switching of work modes of the automatic flight system can be better realized by means of Stateflow.