The invention provides an engineering machinery power supply system comprising a vehicle-mounted power supply (B1) which is connected with a motor controller through a vehicle-mounted power supply switch; the mobile power supply (B2) is connected with the motor controller through a mobile power supply switch; the power supply management unit (OBC) is respectively connected with the vehicle-mounted power supply (B1) and the mobile power supply (B2) so as to control electric energy distribution between the vehicle-mounted power supply (B1) and the mobile power supply (B2); the motor controller is connected with the motor; electric energy distribution of the engineering machinery under different working conditions is realized by controlling on and off of the vehicle-mounted power switch and the mobile power switch; the wire diameter of a cable for connecting the mobile power supply to the engineering machinery is reduced, the proportion of a plurality of batteries concentrated on the engineering machinery to work simultaneously is reduced, and the circulating current influence and the safety risk possibly generated by the plurality of batteries due to unbalanced power are reduced.

    本发明提供一种工程机械供电系统,包括:车载电源(B1),所述车载电源(B1)通过车载电源开关连接电机控制器;移动电源(B2),所述移动电源(B2)通过移动电源开关连接电机控制器;电源管理单元(OBC),所述电源管理单元(OBC)分别与车载电源(B1)及移动电源(B2)连接以控制车载电源(B1)与移动电源(B2)之间的电能分配;所述电机控制器连接电机;通过控制车载电源开关及移动电源开关的启闭实现工程机械不同工况下的电能分配;减小了移动电源连接至工程机械的电缆线的线径,减少多块电池集中于工程机械上同时工作的占比,降低了多块电池因为电力不均衡而可能产生的环流影响及安全风险。


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    Title :

    Engineering machinery power supply system and control method


    Additional title:

    一种工程机械供电系统及控制方法


    Contributors:
    JIANG LIMING (author) / SHI FENGLI (author)

    Publication date :

    2023-07-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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