Systems and methods for controlling an electric power steering system. The system includes an electric motor configured to provide a torque to a steering mechanism of a vehicle, a torsion bar torque sensor, a vehicle speed sensor, and a steering angle sensor. The system also includes an electronic controller configured to determine a failure of the torsion bar torque sensor, receive a vehicle speed from the vehicle speed sensor and a steering angle from the steering angle sensor, calculate a steering assistance torque based on the vehicle speed and the steering angle, calculate a hysteresis torque based on the steering angle, sum the steering assistance torque and the hysteresis torque to determine a turning torque, calculate a return torque and sum the turning torque and return torque to obtain an output torque, and generate a command for the electric motor to provide the output torque to the steering mechanism.


    Access

    Download


    Export, share and cite



    Title :

    Backup control of electric power steering system when sensor failure occurs


    Contributors:

    Publication date :

    2022-10-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge / G07C TIME OR ATTENDANCE REGISTERS , Zeit- oder Anwesenheitskontrollgeräte



    BACKUP CONTROL OF ELECTRIC POWER STEERING SYSTEM WHEN SENSOR FAILURE OCCURS

    ZHAO ZHENG / ZHANG DUANXIANG / HEILIG ARNULF | European Patent Office | 2021

    Free access

    Multi-stage failure backup intelligent steering system

    XING LIHUA / GAO GANG / ZHOU CHENYE et al. | European Patent Office | 2025

    Free access


    VEHICLE STEERING BACKUP

    WU JIN-GEN / CHANG FU-LONG / STUETZLER FRANK JUERGEN et al. | European Patent Office | 2021

    Free access