The invention relates to the technical field of battery state-of-health prediction, and provides a vehicle-mounted battery state-of-health prediction method, which comprises the following steps: acquiring vehicle travel frequency, if the frequency is high, calculating the maximum discharge capacity of a battery in a corresponding discharge process according to discharge process data with high discharge depth, and if the frequency is low, calculating the maximum discharge capacity of the battery in a corresponding discharge process. Calculating the maximum discharge capacity of the corresponding discharge process of the battery according to the data of the charge process adjacent to the discharge process with low discharge depth and high charge amplitude, and obtaining an input sequence according to the data of the discharge process with high discharge depth and/or the data of the discharge process with low discharge depth and high charge amplitude, obtaining an output sequence according to the maximum discharge capacity corresponding to the discharge process with the high discharge depth and/or the maximum discharge capacity corresponding to the discharge process with the low discharge depth and the high charge amplitude, training a target model according to the input and output sequences, and predicting the health state of the battery according to the maximum discharge capacity predicted by the target model. Accurate prediction of the health state of the battery is realized.

    本申请涉及电池健康状态预测技术领域,提供了一种车载电池健康状态的预测方法,通过获取车辆出行频率,若频率高,根据放电深度高的放电过程数据,计算电池相应放电过程的最大放电容量,若频率低,根据放电深度低且充电幅度高的放电过程相邻的充电过程数据,计算电池相应放电过程的最大放电容量,根据放电深度高的放电过程数据,和/或,放电深度低且充电幅度高的放电过程数据,得到输入序列,根据放电深度高的放电过程对应的最大放电容量,和/或,放电深度低且充电幅度高的放电过程对应的最大放电容量,得到输出序列,根据输入和输出序列,训练目标模型,根据目标模型预测的最大放电容量,预测电池健康状态,实现了对于电池健康状态的准确预测。


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    Title :

    Vehicle-mounted battery health state prediction method and device, equipment and storage medium


    Additional title:

    车载电池健康状态的预测方法、装置、设备和存储介质


    Contributors:
    DONG SONGMEI (author) / ZHOU JUNJIE (author) / LI LIANPO (author) / WANG LIN (author) / HUANG HAITAO (author) / GAN HAO (author)

    Publication date :

    2023-06-02


    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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