The invention discloses a vehicle active empennage attack angle control method based on fuzzy logic. The design of double active controllers is adopted, the input of a main fuzzy controller is vehicle speed and acceleration request values, the output of the main fuzzy controller is an active empennage attack angle, the main fuzzy controller is processed through a membership function, a fuzzy rule is formulated, and the fuzzy quantity output by the main fuzzy controller is obtained through fuzzy reasoning; the output of the subordinate fuzzy controller is empennage attack angle correction, and the input of the subordinate fuzzy controller is the actual and reference difference and the variation of the difference between the front and rear wheel slip rates of the vehicle; formulating a fuzzy rule of a subordinate fuzzy controller, and obtaining a fuzzy quantity output by the subordinate fuzzy controller through fuzzy reasoning; the output of the master-slave fuzzy controller is defuzzified by adopting a gravity center method to obtain the accurate quantity of the master-slave fuzzy controller, finally, the attack angle of the active empennage can be obtained by combining the output of the master-slave fuzzy controller, and the slip rate of each tire and the vehicle speed are measured as feedback.

    本发明公开了一种基于模糊逻辑的车辆主动尾翼攻角控制方法。本发明采用双主动控制器设计,主模糊控制器的输入为车辆速度和加速度请求值,输出为主动尾翼攻角,利用隶属函数对其进行处理,制定模糊规则,并通过模糊推理获取到主模糊控制器的输出的模糊量;从模糊控制器的输出为尾翼攻角修正量,输入为车辆的前后轮滑移率差值的实际与参考的差及其变化量;制定从模糊控制器的模糊规则,并通过模糊推理获取到从模糊控制器的输出的模糊量;采用重心法对主从模糊控制器的输出进行去模糊化处理,得到主从模糊控制器的精确量,最后结合主从模糊控制器的输出可以得到主动尾翼的攻角,并测量各个轮胎的滑移率和车辆速度作为反馈。


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    Title :

    Vehicle active empennage attack angle control method based on fuzzy logic


    Additional title:

    一种基于模糊逻辑的车辆主动尾翼的攻角控制方法


    Contributors:
    WANG DEJUN (author) / ZHANG SHOUQING (author) / HAN CHAONAN (author) / LI YING (author) / ZHAO JING (author) / WANG LIHUA (author) / LIANG LIANG (author) / ZHANG ZHULING (author)

    Publication date :

    2025-01-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES , Systeme zum Steuern oder Regeln nichtelektrischer veränderlicher Größen / B62D MOTOR VEHICLES , Motorfahrzeuge



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