The invention provides a fault diagnosis processing method, a micro-control unit and an electric vehicle. The method comprises the steps that a first motor angle value of an angle sensor is acquired every preset time, and whether the first motor angle value exceeds a preset angle range or not is determined; according to the first motor angle value at the current moment and the first motor angle value at the previous moment, a motor angle change rate is obtained, and whether the motor angle change rate is larger than or equal to a preset change rate threshold value or not is determined; when it is determined that the first motor angle value exceeds a preset angle range or the motor angle change rate is larger than or equal to a preset change rate threshold value, an excitation signal in the angle sensor is obtained, a second motor angle value is obtained according to the excitation signal, and the road feeling simulation motor is controlled to output steering resistance corresponding to the second motor angle value. The fault diagnosis processing method can ensure that the micro-control unit controls the road feeling simulation motor according to the correct motor angle data under the fault working condition.

    本申请提供一种故障诊断处理方法、微控制单元及电动汽车。该方法包括:每隔预设时间,获取角度传感器的第一电机角度值,确定第一电机角度值是否超过预设的角度范围;根据当前时刻的第一电机角度值和前一时刻的第一电机角度值,获取电机角度变化率,确定电机角度变化率是否大于或者等于预设的变化率阈值;在确定第一电机角度值超过预设的角度范围,或者电机角度变化率大于或者等于预设的变化率阈值时,获取角度传感器中的激发信号,根据激发信号获取第二电机角度值,控制路感模拟电机输出与第二电机角度值对应的转向阻力。本申请的故障诊断处理方法,能够确保微控制单元在故障工况下根据正确的电机角度数据对路感模拟电机进行控制。


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    Title :

    Fault diagnosis processing method, micro-control unit and electric vehicle


    Additional title:

    一种故障诊断处理方法、微控制单元及电动汽车


    Contributors:
    LYU DENGKE (author)

    Publication date :

    2024-05-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge




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