The invention provides a single-motor hybrid power system power battery electric quantity balance management system and method, and belongs to the technical field of hybrid automobile energy management strategies. The problem of how to realize power battery electric quantity balance management under various working conditions is solved. The system comprises a working condition analysis module usedfor analyzing vehicle driving working condition characteristics; a SOC balance point determining module provided with a first SOC threshold value, a second SOC threshold value and a third SOC threshold value and determining a corresponding SOC target balance point according to the working condition; and a balance keeping module used for presetting SOC balance strategies corresponding to differentSOC target balance points under different working conditions, so that the current SOC tends to the current SOC target balance point to achieve balance. The method comprises the following steps: A, analyzing vehicle driving condition characteristics; b, planning SOC target balance points corresponding to different working conditions in advance; and C, presetting SOC balance strategies corresponding to different SOC target balance points under different working conditions, so that the current SOC tends to the current SOC target balance point to achieve balance. Self-adaption of power battery electric quantity balance to different operation conditions is realized, and the economy is improved.

    本发明提供一种单电机混合动力系统动力电池电量平衡管理系统和方法,属于混合汽车能量管理策略技术领域。它解决如何在适应各种工况下实现动力电池电量平衡管理的问题。系统包括工况解析模块,用于解析车辆行车工况特征;SOC平衡点确定模块,设有SOC阀值一、SOC阀值二和SOC阀值三,根据工况确定对应SOC目标平衡点;平衡保持模块,预设不同工况下对应不同SOC目标平衡点的SOC平衡策略,使当前SOC趋向当前SOC目标平衡点达到平衡。本方法包括:A、解析车辆行车工况特征;B、预先规划不同工况对应的SOC目标平衡点;C、预设不同工况下对应不同SOC目标平衡点的SOC平衡策略,使当前SOC趋向当前SOC目标平衡点达到平衡。实现动力电池电量平衡对于不同运行工况下的自适应,提高经济性。


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    Title :

    Single-motor hybrid power system power battery electric quantity balance management system and method


    Additional title:

    一种单电机混合动力系统动力电池电量平衡管理系统和方法


    Contributors:
    BA TE (author) / LIN XIAO (author) / YIN XINGQI (author) / XIE HONGJUN (author) / WEI WU (author)

    Publication date :

    2020-04-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion



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