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主要介绍了自动油门的工作模式和控制律算法设计。自动油门两种工作模式为:指示空速/马赫数保持和推力控制。其工作模式由自动飞行控制系统的纵向接通模态直接决定。在推力控制模态算法中,发动机目标压力比和现时压力比的差值为主控信号;在速度保持模态算法中,速度差是主控信号。经过调参转换为油门杆指令速率,驱动油门执行机构,伺服电机跟踪转速指令并转换为油门偏转角度,输出给发动机产生相应的推力。以某型飞机为控制对象,进行了数学仿真,仿真结果表明该控制律是可行的并具有良好的应用前景。
Mainly introduces the automatic throttle working mode and control law algorithm design. Automatic throttle two operating modes: Indicate airspeed / Mach number and thrust control. Its operating mode is determined directly by the longitudinal mode of the automatic flight control system. In the thrust control modal algorithm, the difference between the target pressure ratio of the engine and the current pressure ratio is the master signal; in the velocity preserving modal algorithm, the speed difference is the master signal. After the reference parameters are converted to the throttle command speed, drive the throttle actuator, servo motor tracking speed command and converted to the throttle deflection angle, the output to the engine to produce the corresponding thrust. Taking a certain aircraft as the control object, the mathematical simulation is carried out. The simulation results show that the control law is feasible and has good application prospects.