未来太空车辆(ASV ) 被设计在内部、额外的大气的地里飞,它要求到无常的自治适应性从突然的差错并且连续地发出了变化时间的环境。一个自治控制重构计划被介绍让 ASV 在控制有效性评价的库上处理无常。为线性控制系统的变化时间的控制有效性的联机评价方法被调查。为可敬的系统的一些足够的条件为不同案例被给。有建议相应联机评价算法,被证明对用 least-square-based 方法的噪音会聚、柔韧。在模糊逻辑和线性编程的地面上,控制分配算法,能通过冗余的致动器实现自治控制重构,被提出。最后,一个综合系统被开发通过数字模拟和分析验证计划和算法。
Future aerospace vehicles (ASV) are designed to fly in both inner and extra atmospheric fields, which requires autonomous adaptability to the uncertainties emanated from abrupt faults and continuously time-varying environments. An autonomous control reconfiguration scheme is presented for ASV to deal with the uncertainties on the base of control effectiveness estimation. The on-line estimation methods for the time-varying control effectiveness of linear control system are investigated. Some sufficient conditions for the estimable system are given for different cases. There are proposed corresponding on-line estimation algorithms which are proved to be convergent and robust to noise using the least-square-based methods. On the ground of fuzzy logic and linear programming, the control allocation algorithms, which are able to implement the autonomous control reconfiguration through the redundant actuators, are put forward. Finally, an integrated system is developed to verify the scheme and algorithms by way of numerical simulation and analysis.