The invention relates to a state-of-charge estimation method, device and equipment of a power battery, a medium and a product. The method comprises the following steps: under the condition that a target vehicle is in a power-on state, acquiring working state information of each single battery in a power battery of the target vehicle in a previous estimation round and intermediate parameters related to estimation of each single battery in the previous estimation round; wherein each estimation round comprises at least two continuous estimation periods, the number of the estimation periods involved in different estimation rounds is the same, and different estimation periods correspond to different single batteries; and calling a charge state estimation algorithm, and according to the working state information of each single battery in the previous estimation round and the corresponding intermediate parameter, estimating the charge state of each single battery in the estimation period of the current estimation round in sequence to obtain the charge state of each single battery in the current estimation round. By adopting the method, the estimation precision of estimating the state of charge of the power battery can be improved.

    本申请涉及一种动力电池的荷电状态估计方法、装置、设备、介质和产品。所述方法包括:在目标车辆处于上电状态的情况下,获取目标车辆的动力电池中各单体电池在上一估计轮次的工作状态信息和在上一估计轮次对各单体电池进行估计所涉及的中间参数;其中,每一估计轮次均包括至少两个连续的估计周期,不同估计轮次所涉及的估计周期的周期数量相同,且不同估计周期对应不同单体电池;调用荷电状态估计算法,根据各单体电池在上一估计轮次的工作状态信息和对应的中间参数,在当前估计轮次的估计周期中依次对各单体电池的荷电状态进行估计,得到各单体电池在当前估计轮次的荷电状态。采用本方法能够提高对动力电池的荷电状态进行估计的估计精度。


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    Title :

    Power battery state-of-charge estimation method, device, equipment, medium and product


    Additional title:

    动力电池的荷电状态估计方法、装置、设备、介质和产品


    Contributors:
    JIANG CONGHUI (author) / XIANG XIAOLEI (author) / GAO JIEPENG (author) / LIU JIAHUI (author) / LI SONGSONG (author) / YIN PENG (author) / LIU JIANYU (author) / ZHAO SHUAI (author) / YU YUE (author) / LI DEYU (author)

    Publication date :

    2024-12-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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