The invention discloses a wire harness diagnosis system for an electric vehicle three-electric system and the electric vehicle. The low-voltage wire harness can be diagnosed by comparing acquired dataof the main single-chip microcomputer and the auxiliary single-chip microcomputer, a universal meter does not need to be manually adopted for sequentially measuring ports, the probability of missingdetection or wrong detection is low, a large amount of manpower and material resources are saved, the detection efficiency and the detection accuracy are high, and the safety of the vehicle is also improved. Furthermore, when the low-voltage wire harness is detected, the low-voltage wire harness is disconnected with a main loop system of the three-electric system and is connected with the test circuit system of the three-electric system, and the main loop system and the test circuit system do not influence each other, so that the test circuit system can independently test the low-voltage wireharness, the influence of the main loop system on the detection precision of the test circuit system is avoided, and the detection precision is further improved.

    本发明公开了一种用于电动汽车三电系统的线束诊断系统和电动汽车,通过对比主单片机和副单片机的采集数据即可对低压线束进行诊断,其并不需要人为采用万用表依次量测端口,漏检或错检的几率较低,节省了大量的人力物力,检测效率和检测精确度都较高,也提高了汽车的安全性。此外,在对低压线束进行检测时,低压线束与三电系统的主回路系统断开,与三电系统的测试电路系统连接,主回路系统和测试电路系统两者互不影响,从而能够使得测试电路系统单独测试低压线束,避免了主回路系统对测试电路系统的检测精度造成影响,进一步提高了检测精度。


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    Title :

    Wire harness diagnosis system for electric vehicle three-electric system and electric vehicle


    Additional title:

    用于电动汽车三电系统的线束诊断系统及电动汽车


    Contributors:

    Publication date :

    2020-09-11


    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



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