CAJ | 학술논문

飞机防滑刹车控制系统中对滑移率的研究是近年研究的热门课题。根据飞机地面滑跑的受力分析建立了飞机的非线性动力学数学模型，提出了一种基于最佳滑移率方式的飞机刹车系统模糊控制律；在刹车过程中，提高刹车效率的重要前提是对飞机速度的准确估计，因此提出了基于扩展卡尔曼滤波算法的飞机速度精确估计的方法，将估计飞机速度的最优值作为防滑控制律的输入，实现系统状态的估计。对所提出的算法进行仿真验证，结果表明：基于扩展卡尔曼估计的模糊控制可以准确估计出飞机滑跑时的速度，实现滑移率的最优控制，改善飞机低速段滑移率控制，提高飞机刹车性能和效率。
비궤방활찰차공제계통중대활이솔적연구시근년연구적열문과제。근거비궤지면활포적수력분석건립료비궤적비선성동역학수학모형，제출료일충기우최가활이솔방식적비궤찰차계통모호공제률；재찰차과정중，제고찰차효솔적중요전제시대비궤속도적준학고계，인차제출료기우확전잡이만려파산법적비궤속도정학고계적방법，장고계비궤속도적최우치작위방활공제률적수입，실현계통상태적고계。대소제출적산법진행방진험증，결과표명：기우확전잡이만고계적모호공제가이준학고계출비궤활포시적속도，실현활이솔적최우공제，개선비궤저속단활이솔공제，제고비궤찰차성능화효솔。
The slip ratio of the aircraft anti?skid braking control is a popular research topic in recent years. We, es?tablish the aircraft nonlinear dynamic mathematical model according to the force analysis of the motion on the ground and put forward the fuzzy control of optimal slip ratio. We propose an aircraft velocity accurate estimation method,using extended Kalman filter for brake efficiency improvement. The input of fuzzy control is optimal value estimated by EKF and implemented the estimation of system state. The simulation software is used to simulate and validate the proposed algorithm;the results and their analysis show preliminarily that fuzzy control with EKF estima?tion algorithm can estimate the aircraft velocity and realize aircraft ABS optimal slip ratio control. The slip ratio is a?meliorated in lower velocity;brake performance and efficiency is improved.