防滑刹车控制系统分析  

On Improving the Performance of Aircraft Antilock Brake System

作　　者：王纪森[1] 何长安[1] 

机构地区：[1]西北工业大学自动控制系,陕西西安710072

出　　处：《西北工业大学学报》2000年第3期469-473,共5页Journal of Northwestern Polytechnical University

基　　金：国家重点基础研究发展规划项目!(G19980 30 417)

摘　　要：分析了防滑刹车控制系统的性能与控制原理的关系 ,以及低摩擦系数跑道上系统性能恶化的原因。提出了本系统的稳定性概念 ,以及用估值和顺馈补偿不可直接量测强干扰—地面结合力矩的方法。找到了刹车效率与控制精度间的关系 ,对防滑刹车控制系统的设计具有现实意义。The relationship between performance and control principle of common aircraft antilock brake systems is investigated. The analysis of track test data and flight test data reveals that the system performance can be improved with the accurate estimation of ground reaction torque. Our main contributions are as follows: (1) We proposed a method for estimating ground reaction torque from brake pressure and wheel velocity. The estimation is used as a feedforward (as shown in Fig.1) to improve the system performance. (2) We for the first time studied the relationship between brake efficiency and the accuracy of the controller, and got inequality (4), where Δ V is the accuracy of the controller, η μ is the brake efficiency. With this inequality, the requirement for brake efficiency can be changed into the requirement for the accuracy of the controller.

关 键 词：防滑刹车 控制精度 防滑刹车控制系统 飞机 

分 类 号：V227.5[航空宇航科学与技术—飞行器设计]