The embodiment of the invention provides a power supply system and engineering machinery, and belongs to the field of engineering machinery. The power supply system comprises a controller, a power battery unit, a direct current charging unit, a vehicle-mounted charger and vehicle-mounted electric equipment. The controller is used for responding to a trigger signal and obtaining the on-off states of the electric control switch, the direct-current charging contactor, the main contactor and the alternating-current charging contactor. It is determined that the current switching states of the electric control switch, the direct current charging contactor, the main contactor and the alternating current charging contactor meet the working condition corresponding to the trigger signal, and executing an operation instruction corresponding to the trigger signal, and correspondingly controlling the electric control switch, the direct-current charging contactor, the main contactor and the alternating-current charging contactor to switch on/off states. Conventional function requirements of engineering machinery are met, and then the working time of a residence place is prolonged.

    本发明实施例提供一种供电系统和一种工程机械,属于工程机械领域。所述供电系统包括控制器、动力电池单元、直流充电单元、车载充电机和车载用电设备;所述控制器用于:响应于触发信号,获取所述电控开关、所述直流充电接触器、所述主接触器和所述交流充电接触器的开关状态;确定所述电控开关、所述直流充电接触器、所述主接触器和所述交流充电接触器的当前开关状态满足所述触发信号对应的工作条件,执行所述触发信号对应的操作指令,相应地控制所述电控开关、所述直流充电接触器、所述主接触器和所述交流充电接触器进行开关状态的切换。本发明满足工程机械的常规功能需求,进而延长驻地工作时间。


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    Title :

    Power supply system and engineering machinery


    Additional title:

    供电系统和工程机械


    Contributors:
    SUN LIANG (author) / CAO SHUBI (author) / LI XIAOHAI (author) / LUO MIAO (author)

    Publication date :

    2021-03-26


    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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