The invention provides an automobile wire harness protection circuit and method, and relates to the technical field of vehicle line protection. The circuit comprises a relay, a wire harness protectioncontroller, and at least one wire harness control loop; the wire harness protection controller and the at least one wire harness control loop are connected with the relay; a current sensor is used for acquiring the current value of a automobile wire harness to be protected in real time and sending the current value to the wire harness protection controller; the wire harness protection controlleris used for comparing the current value with a preset current threshold value to obtain a comparison result; under the condition that the current value is larger than the current threshold value, a safety cut-off signal is sent to a resettable fuse corresponding to the automobile wire harness to be protected, connection between the automobile wire harness to be protected and a power source is cutoff by controlling the working state of the relay. The automobile wire harness is directly protected through the method, and the probability of spontaneous combustion of an automobile is reduced.

    本发明提供了一种汽车线束保护电路及保护方法,涉及车辆线路保护技术领域,该电路包括:继电器、线束保护控制器和至少一个线束控制回路;其中,线束保护控制器和至少一个线束控制回路均与继电器相连接;电流传感器,用于实时获取待保护的汽车线束的电流值,将电流值发送至线束保护控制器中;线束保护控制器,用于将电流值与预设的电流阈值进行对比,得到对比结果;在电流值大于电流阈值的情况下,向待保护的汽车线束对应的自恢复保险丝发出保险切断信号,并通过控制继电器的工作状态来切断待保护的汽车线束与电源之间的连接,该方法直接对车辆线束进行保护,减少了车辆发生自燃的概率。


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    Title :

    Automobile wire harness protection circuit and protection method


    Additional title:

    汽车线束保护电路及保护方法


    Contributors:
    CHENG LIN (author) / HE HONGLEI (author) / LI JUNLONG (author)

    Publication date :

    2020-08-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen



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