The invention relates to the technical field of energy management, in particular to an energy management method and device, an electric automobile and a storage medium, and the method comprises the steps that the total demand torque of the electric automobile is calculated according to state parameters of the electric automobile; performing coordinated optimization on the electric vehicle based on motor energy loss, tire slippage energy loss and torque change energy loss control of the electric vehicle to obtain a torque distribution coefficient meeting the lowest energy loss requirement; and calculating a driving torque corresponding to each wheel of the electric vehicle according to the torque distribution coefficient, and controlling a driving motor of each wheel to output based on the corresponding driving torque. Therefore, the problems that in the related technology, due to the fact that a driving system of the four-wheel independent drive electric automobile is provided with a single energy source and multiple power sources, an actuator has the redundancy characteristic, reasonable distribution of the torque of all the wheels is difficult to achieve, the dynamic performance of the electric automobile is likely to be unbalanced, more energy losses are caused, and the energy consumption efficiency of the system is reduced are solved.

    本申请涉及能量管理技术领域,特别涉及一种能量管理方法、装置、电动汽车及存储介质,其中,方法包括:根据电动汽车的状态参数计算电动汽车的总需求转矩;基于电动汽车的电机能量损耗、轮胎滑移能量损耗和转矩变化能量损耗控制对电动汽车进行协调优化,得到达到能量损耗最低要求的转矩分配系数;以及根据转矩分配系数计算电动汽车的每个车轮对应的驱动转矩,并控制每个车轮的驱动电机基于对应的驱动转矩进行输出。由此,解决了相关技术中,由于四轮独立驱动电动汽车的驱动系统为单一能量源、多个动力源,执行器本身存在冗余特性,难以实现各个车轮转矩的合理分配,容易导致电动汽车动力性能不均衡,造成更多的能量损失,降低系统能耗效率等问题。


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    Title :

    Energy management method and device, electric vehicle and storage medium


    Additional title:

    能量管理方法、装置、电动汽车及存储介质


    Contributors:
    LYU SIWEN (author) / WANG YU (author) / HAN YANING (author) / WANG SHAN (author) / FENG ZHE (author) / WANG RUI (author)

    Publication date :

    2024-05-03


    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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