The invention discloses a transmission ratio optimization control method and device for a steer-by-wire system. The method comprises the steps that vehicle parameters of an automobile when the automobile runs on a road surface are obtained; the vehicle parameters are preprocessed, and the preprocessed vehicle parameters are obtained; the method comprises the steps of obtaining a vehicle parameter, preprocessing the vehicle parameter, inputting the preprocessed vehicle parameter into a pre-trained deep reinforcement learning algorithm to obtain a real-time steer-by-wire transmission ratio, and adjusting a value of a steer-by-wire system in real time based on a calculated value of the transmission ratio. According to a deep learning reinforcement algorithm, optimal learning is carried out according to the state of the vehicle, the steering transmission ratio is dynamically adjusted, the performance of the steer-by-wire system is made to be optimal, and the driver feels the best no matter the vehicle is in various states of low-speed turning, high-speed turning, no-load, full-load and the like.

    本发明公开了一种线控转向系统传动比优化控制方法及装置,包括:获取汽车在路面行驶时的车辆参数;对所述车辆参数进行预处理,获取预处理后的车辆参数;将所述预处理后的车辆参数输入预先训练过的深度强化学习算法中,得到实时的线控转向传动比,基于传动比的计算值对线控转向系统的值进行实时的调整,本发明根据传统车辆动力学算法,确定基本的传动比选择范围,然后根据深度学习强化算法,根据车辆的状态进行最优化学习,动态的调整转向传动比,让线控转向系统的性能发挥到最优,使得车辆不论在低速转弯、高速转弯、空载、满载等各种状态下均让驾驶员的感受最佳。


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    Titel :

    Steer-by-wire system transmission ratio optimization control method and device


    Weitere Titelangaben:

    一种线控转向系统传动比优化控制方法及装置


    Beteiligte:
    CHEN WENYUE (Autor:in) / ZHU FENG (Autor:in) / WANG ZHEN (Autor:in) / ZHOU ZHENHUA (Autor:in) / JI XIAOGANG (Autor:in) / JIANG LONGCHAO (Autor:in)

    Erscheinungsdatum :

    2022-11-25


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion



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