The invention discloses an energy management method and device for an electric excavator and a medium, and relates to the field of energy recovery, and the method comprises the steps that a corresponding energy management strategy is selected based on a power supply mode; obtaining the charge state of the battery module, and determining a preset charge interval hit in the energy management strategy according to the charge state; performing energy management on the electric excavator according to the sub-management strategy corresponding to the preset charge interval; the sub-management strategy comprises an energy recovery strategy, energy recovery is carried out through a big arm energy recovery module and/or a rotation energy recovery module of the electric excavator, and the battery module is charged. Through the synergistic effect of the big arm energy recovery module and the rotation energy recovery module, big arm descending potential energy and rotation braking kinetic energy are converted into electric energy to be stored in the battery module, energy waste is reduced, and the energy recovery efficiency is improved.

    本申请公开了针对电动挖掘机的能量管理方法、设备及介质,涉及能量回收领域,方法包括:基于供电模式,选择对应的能量管理策略;获取电池模块的荷电状态,并根据荷电状态,确定在能量管理策略中命中的预设荷电区间;根据预设荷电区间对应的子管理策略,对电动挖掘机进行能量管理;子管理策略中包含能量回收策略,通过电动挖掘机的大臂能量回收模块和/或回转能量回收模块进行能量回收,对电池模块进行充电。通过大臂能量回收模块和回转能量回收模块的协同作用,将大臂下降势能与回转制动动能转化为电能存储至电池模块,减少能量浪费,提高能量回收效率。


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    Title :

    Energy management method and equipment for electric excavator and medium


    Additional title:

    针对电动挖掘机的能量管理方法、设备及介质


    Contributors:
    YIN WEI (author) / MA YUJIE (author) / HUANG CHANGYUAN (author) / CHENG YONG (author)

    Publication date :

    2025-05-30


    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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