The invention relates to the technical field of electric power steering systems, in particular to an electric power steering system intermediate shaft loose clearance detection and early warning method. Compared with the prior art, active detection can be implemented, and when an abnormal condition that the loose clearance of a tubular column type electric power steering system intermediate shaft is too large exists, the loose clearance of the tubular column type electric power steering system intermediate shaft is not large. Lamp explosion early warning can be timely given to a driver, and assistance is reduced; the abnormal condition that the clearance of the intermediate shaft is too large can be accurately and effectively detected and early warned on a normal road surface and a low-adhesion road surface, so that potential safety hazards such as cross shaft disengagement possibly caused by the too large clearance of the cross shaft of the intermediate shaft under an extreme working condition are reduced, safe driving of a vehicle is ensured, the safety performance of the whole vehicle is improved, and the service life of the vehicle is prolonged. Unnecessary loss of a whole vehicle factory and a customer is effectively reduced; when the abnormal condition that the loose clearance of the intermediate shaft is too large does not exist, the active detection has no influence on the subjective feeling of a terminal driver, and the safety of vehicle driving is controllable after the active detection is activated.

    本发明涉及电动助力转向系统技术领域,具体地说是一种电动助力转向系统中间轴松旷间隙检测预警方法,本发明同现有技术相比,可以实施主动检测,当管柱式电动助力转向系统中间轴存在松旷间隙过大的异常情况,可以及时向驾驶员爆灯预警并且降低助力;在正常路面及低附着路面均可准确有效地检测出并预警中间轴松旷间隙过大的异常情况,从而减小极端工况下由于中间轴十字轴间隙过大可能导致的十字轴脱开等安全隐患,确保车辆安全行驶,提高整车安全性能,有效减少整车厂及客户不必要的损失;在未存在中间轴松旷间隙过大异常情况时,主动检测对终端驾驶员主观感受无影响,激活后对车辆行驶的安全可控。


    Access

    Download


    Export, share and cite



    Title :

    Detection and early warning method for loose clearance of intermediate shaft of electric power steering system


    Additional title:

    一种电动助力转向系统中间轴松旷间隙检测预警方法


    Contributors:
    ZHU BO (author) / WANG SHAOHANG (author) / ZHAO XIXI (author) / JIN PENG (author) / ZHANG ZIJING (author) / LIAO XINSHEN (author) / SUN XUEYIN (author) / WANG KANG (author)

    Publication date :

    2022-11-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen / B62D MOTOR VEHICLES , Motorfahrzeuge



    Steering clamping stagnation detection and early warning method for parallel shaft type electronic power-assisted steering system

    REN PEILIN / LIANG SIYU / ZHU LIANGYU et al. | European Patent Office | 2023

    Free access

    STEERING DEVICE, INTERMEDIATE SHAFT, AND INTERMEDIATE SHAFT MANUFACTURING METHOD

    MORIYAMA SEIICHI / KANO TETSUYA | European Patent Office | 2019

    Free access

    Automobile steering intermediate shaft

    SHEN FENGZHE | European Patent Office | 2020

    Free access

    INTERMEDIATE SHAFT OF VEHICLE STEERING SYSTEM

    HONG SUNG JONG / WOO JONG HAK / HONG JIN YONG et al. | European Patent Office | 2021

    Free access

    STEERING DEVICE AND INTERMEDIATE SHAFT

    MORIYAMA SEIICHI | European Patent Office | 2019

    Free access