The invention discloses a fixed-point brake control method and system. The method comprises the steps that S1, the initial flight position and the initial aircraft speed are obtained; s2, obtaining the aircraft position, the deceleration profile of the aircraft speed and the deceleration rate range corresponding to the optimal deceleration state supported by the runway through runway optimization; s3, acquiring the current position and the current speed of the aircraft in real time; s4, performing local MPC planning to obtain a target deceleration rate and a target slip rate; s5, determining the target braking torque of the airplane wheel according to the target deceleration rate and the target slip rate, and braking according to the target braking torque of the airplane wheel; and S6, the steps S3 to S5 are repeated until fixed-point braking of the aircraft is completed. According to the method, the target speed and the target position can be planned while the optimal speed reduction rate is obtained as far as possible on the basis of safety and economy, disturbance such as clockwise and anticlockwise gust and brake disc torque system change from the inside and outside of the system is resisted, and finally fixed-point braking is achieved.

    本发明公开了一种定点刹车控制方法及系统,该方法包括S1,获取飞初始位置和飞机初始速度;S2,通过道面寻优获得道面能够支持的最优减速状态对应的飞机位置、飞机速度的减速剖面和减速率范围;S3,实时获取飞机当前位置和飞机当前速度;S4,进行局部MPC规划,以得到目标减速率和目标滑移率;S5,根据目标减速率和目标滑移率确定机轮目标刹车力矩,并根据机轮目标刹车力矩刹车;S6,重复步骤S3到S5,直到飞机定点刹车完成。本发明能够以安全性和经济性为原则,在尽可能获得更优减速率的同时,对目标速度和目标位置进行规划,同时抵抗来自系统内外的顺、逆阵风,刹车盘力矩系统变化等扰动,最终实现定点刹车。


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    Title :

    Fixed-point brake control method and system


    Additional title:

    一种定点刹车控制方法及系统


    Contributors:
    LIU XIAOCHAO (author) / LI BINGYU (author) / BAI YU (author) / WANG ZHUANGZHUANG (author) / SUN XUEFENG (author)

    Publication date :

    2024-07-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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