The invention discloses an energy-saving and safety-oriented composite battery system controller design method, which comprises the following steps of: establishing a Thevenin equivalent circuit model according to parameters of a primary battery equivalent circuit model and a secondary battery equivalent circuit model, constructing a primary battery pack loss model and a secondary battery pack loss model based on the Thevenin equivalent circuit model, and calculating a power distribution coefficient by taking the average loss efficiency of the primary battery pack and the secondary battery pack as an optimization target, according to the method, the energy loss caused by the composite battery system can be greatly reduced, the endurance mileage of the pure electric vehicle can be improved, the power distribution coefficient is calculated by adopting a real-time optimization algorithm, the current optimal power configuration scheme can be obtained in real time according to different working conditions, and the efficiency of the pure electric vehicle can be improved. The method has high flexibility and convenience, selects one or more performance indexes of the composite battery system as optimization targets to calculate the power distribution coefficient, and provides a new idea for the design of a composite battery system controller.

    本发明公开一种面向节能和安全的复合电池系统控制器设计方法,包括根据主、副电池等效电路模型参数建立Thevenin等效电路模型、基于Thevenin等效电路模型构建主、副电池组损失模型以及以主、副电池组平均损失效率为优化目标计算功率分配系数,不断更新主、副电池组的荷电状态,达到效率最优的目,本发明能够大大降低复合电池系统自身造成的能量损耗,提高纯电动汽车续航里程,采用实时寻优算法计算功率分配系数,能够针对不同工况实时得到当前最优的功率配置方案,具有较高的灵活性和便捷性,选取复合电池系统单个或多个性能指标作为优化目标计算功率分配系数,提供了一种复合电池系统控制器设计的新思路。


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    Title :

    Energy-saving and safety-oriented composite battery system controller design method


    Additional title:

    一种面向节能和安全的复合电池系统控制器设计方法


    Contributors:
    LI HAO (author) / LI GUANGMIN (author) / LIU HUI (author)

    Publication date :

    2024-06-04


    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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