The invention discloses a fault diagnosis system and method for a hydraulic power steering system, and the system comprises a central processing unit, a sensor group, an electric signal collection unit, a sensing signal collection unit, a fault feature extraction unit, an early warning unit, and a signal transmission unit. The sensor group comprises a motor voltage sensor, a motor current sensor, an oil valve opening degree sensor, an oil tank oil quantity sensor, a hydraulic oil flow sensor and a motor temperature sensor, the working principle is clear, and the received working parameters can be analyzed, so that which part breaks down can be determined; the fault self-diagnosis function of the hydraulic power-assisted steering system is achieved, an alarm signal can be immediately sent out once abnormity is monitored, and the maintenance cost of the hydraulic power-assisted steering system is reduced.

    本发明公开了一种液压助力转向系统用故障诊断系统及方法,故障诊断系统包括中央处理器、传感器组、电信号采集单元、传感信号采集单元、故障特征提取单元、预警单元和信号传输单元,传感器组包括电机电压传感器、电机电流传感器、油阀开合度传感器、油罐油量传感器、液压油流量传感器、电机温度传感器,本发明工作原理清晰,能够通过对接收到的工作参数进行分析,从而确定是的哪个部件发生了故障,实现了液压助力转向系统的故障自诊断功能,一旦监测到异常能够立即发出告警信号,降低了液压助力转向系统的维修成本。


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    Title :

    Fault diagnosis system and method for hydraulic power steering system


    Additional title:

    一种液压助力转向系统用故障诊断系统及方法


    Contributors:
    ZHENG ZHU'AN (author) / WEI JINCHENG (author) / ZHANG KUN (author) / SHI XIAOLONG (author) / XIONG XIN (author) / ZHAI HAORUI (author) / SUN TINGTING (author)

    Publication date :

    2021-11-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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