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一、引言 多模态飞行控制系统需要解决的特殊课题,一是模态转换技术,使驾驶员根据任务需要由按钮任意切换模态;二是对模态转换时所引起的瞬变幅度进行有效地抑制,限制转换时的舵面跳变,从而抑制由此而引起的过载变化。特别是当转换前后的两模态不同步工作时,更应抑制瞬变过程,以避免余度系统监控算法的误切除。笔者在文献的基础上着重研究并提出了几种数字飞行控制系统模态转换瞬变抑制方法,经数模混合仿真表明,本文提出的这些方法是有效的。
First, the introduction of multi-modal flight control system needs to be addressed special issues, first, modal conversion technology, so that the driver according to the task required by the button to arbitrarily switch modes; the second is the modal conversion caused by the transient amplitude effective To suppress and limit the rudder surface transition at the time of conversion, thereby suppressing the change in overload caused thereby. Especially when the two modalities before and after conversion do not work synchronously, the transient process should be suppressed to avoid the false removal of the redundancy monitoring algorithm. On the basis of the literature, the author focuses on the study of several modal switching transient suppression methods for digital flight control systems. The mixed simulation shows that the proposed methods are effective.