The invention discloses a method for detecting capacity recession of a power battery of a new energy automobile. The method comprises the following steps of: setting a detection working condition I: running the automobile, loading resistance I Fr1, adjusting a nominal test speed I Vr1 and continuous running time I t1; setting a detection working condition II: running the automobile, loading resistance II Fr2, adjusting nominal test speed II Vr2 and continuous running time II t2; based on the first detection working condition and the second detection working condition, respectively acquiring battery information under the first detection working condition and the second detection working condition; and obtaining battery capacity recession based on the battery information under the first detection working condition and the second detection working condition. According to the detection method, the battery capacity recession can be rapidly detected on the basis of not disassembling the automobile power battery, the operation is convenient, and the detection quality and efficiency of the battery capacity recession detection method can be improved.

    一种检测新能源汽车动力电池容量衰退的方法,包括以下操作:设定检测工况一:运行汽车,加载阻力一Fr1,调设名义测试速度一Vr1,连续运行时间一t1;设定检测工况二:运行汽车,加载阻力二Fr2,调设名义测试速度二Vr2,连续运行时间二t2;基于所述检测工况一和检测工况二,分别获取所述检测工况一和检测工况二下的电池信息;基于所述检测工况一和检测工况二下的电池信息,获取电池容量衰退。该检测方法,可在不拆卸汽车动力电池的基础上,快速检测电池容量衰退,操作便捷,可提升电池容量衰退检测方法的检测质量及效率。


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    Title :

    Method for detecting capacity recession of power battery of new energy automobile


    Additional title:

    一种检测新能源汽车动力电池容量衰退的方法


    Contributors:
    HUANG WANYOU (author) / ZHU PEIDONG (author) / TAN SHIWEI (author) / LIU DONGYING (author) / LI SHINA (author) / LI YAXUN (author) / WANG RUIYUAN (author) / CHU RUIXIA (author) / QIU FANGYUAN (author) / TANG XIANGCHEN (author)

    Publication date :

    2023-04-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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