The invention discloses a redundant electric power-assisted steering system of an intelligent driving automobile and a working method, and the system comprises a sensing sensor assembly, an intelligent driving domain controller, an electric power-assisted steering controller, a steering motor and a steering gear, the intelligent driving domain controller is in communication connection with the electric power steering controller through a two-way CAN bus, a steering angle sensor assembly and a torque sensor assembly are further arranged on a steering column below a steering wheel, and the steering angle sensor assembly and the torque sensor assembly are both in communication connection with the electric power steering controller. The steering angle sensor assembly comprises two steering angle sensors which are symmetrically arranged on the two sides of a steering column, and the torque sensor assembly comprises two torque sensors which are symmetrically arranged on the two sides of the steering column. According to the scheme, through the multi-redundancy design, the technology is advanced, the robustness of the system and the safety of automatic driving are improved, and the application of an intelligent driving automobile L4 scene can be effectively met.

    本发明公开了一种智能驾驶汽车的冗余式电动助力转向系统及工作方法,该系统包括感知传感器组件、智能驾驶域控制器、电动助力转向控制器、转向马达和转向齿轮,智能驾驶域控制器与所电动助力转向控制器通过双路CAN总线进行通信连接,在方向盘下方的转向管柱上还设有转角传感器组件和扭矩传感器组件,转角传感器组件和扭矩传感器组件均与电动助力转向控制器通信连接,转角传感器组件包括两个转角传感器,且两个转角传感器对称布置在转向管柱的两侧,扭矩传感器组件包括两个扭矩传感器,且两个扭矩传感器对称布置在转向管柱的两侧。本方案通过多重冗余的设计,技术先进,提高系统鲁棒性和自动驾驶的安全性,能有效满足智能驾驶汽车L4场景的应用。


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    Title :

    Redundant electric power steering system of intelligent driving automobile and working method


    Additional title:

    一种智能驾驶汽车的冗余式电动助力转向系统及工作方法


    Contributors:
    XU LONGZHOU (author) / REN FAN (author) / WANG LIMENG (author) / LU BO (author)

    Publication date :

    2022-04-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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