针对小型飞行器飞控计算机可靠性指标要求,介绍了运用余度技术提高其可靠性与容错能力的方法,提出了采用三余度技术保证飞控计算机可靠性的设计方案,通过选择合适的冗余模式,建立了三余度飞控计算机的架构模型,经过详细分析与研究各模块结构,给出了余度策略、同步算法、表决面选取等关键技术工程实现的硬件电路与软件流程,仿真验证与试验结果表明,该方案设计合理,不仅较好地完成了飞控计算机的余度管理任务,而且有效地保证了系统的可靠性与容错能力。
Using redundancy techniques can extremely improve fault tolerant and reliability of flight control system. This paper describes the main method in several aspects such as redundancy strategy synchronization and vote. Flight results show that all the redundancy management tasks are achieved with these methods.