The invention discloses a drive-by-wire double-power-assisted steering system with a rear axle active steering function and a control method thereof, and relates to the technical field of vehicle steering, the drive-by-wire double-power-assisted steering system comprises a control assembly, a front axle steering system, a rear axle steering system, a whole vehicle controller and a mode selector, the front axle steering system and the rear axle steering system are symmetrically distributed and connected with a whole vehicle controller with a coordination function, and the design of multiple steering modes enables the vehicle to achieve good steering under various road conditions. Through the design of multiple power-assisted steering modes, optimal distribution of vehicle energy can be achieved; the mechanical connection between the steering wheel and the steering executing mechanism and the mechanical connection between the front axle steering system and the rear axle steering system are canceled, and the drive-by-wire connection is adopted, so that the space is saved; due to the fact that the front shaft and the rear shaft are not directly mechanically connected, multi-shaft active steering can be achieved theoretically; according to the invention, a plurality of components are provided with redundant components, and when a certain component fails, the redundant component can be used for replacing the failed component, so that the driving safety is guaranteed.

    本发明公开了具备后桥主动转向的线控双助力转向系统及其控制方法,涉及车辆转向技术领域,包括控制总成,前桥转向系统,后桥转向系统、整车控制器和模式选择器,所述前桥转向系统和后桥转向系统为对称分布并连接有具有协调功能的整车控制器,多种转向模式的设计,使得车辆在各种路况下实现良好的转向;多种助力转向模式的设计,可实现车辆能源的优化分配;取消了方向盘和转向执行机构之间的机械连接,以及前桥转向系统和后桥转向系统之间的机械连接,采用线控连接,节省了空间;由于前后轴之间没有直接的机械连接,理论上可实现多轴主动转向;本发明多个部件均设有冗余组件,在某一组件出现故障时可用冗余组件替换故障组件,保障驾驶安全。


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    Title :

    Drive-by-wire double-power-assisted steering system with rear axle active steering function and control method thereof


    Additional title:

    具备后桥主动转向的线控双助力转向系统及其控制方法


    Contributors:
    WANG XUANYAO (author) / FANG BIN (author)

    Publication date :

    2023-08-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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