The invention provides a power control method and device, equipment and a storage medium, and the method comprises the steps: determining the lowest voltage value from the voltage values of a plurality of single batteries in a battery system; determining a pre-undervoltage correction coefficient according to a difference value between the lowest voltage value and an undervoltage threshold value; and controlling the actual output power of the battery system according to the product of the pre-undervoltage correction coefficient and the theoretical output power of the battery system. Under the condition that the accuracy of the charging state of the battery is not high, the actual output power of the battery system can be adjusted according to the lowest voltage value, the situation that the discharging power of the battery is too large or the under-voltage fault is caused due to the fact that the charging state of the battery is not accurate is avoided, and therefore the charging efficiency of the new energy automobile is improved in the running process of the new energy automobile. Damage to the battery can be effectively reduced, and the battery is protected.

    本申请提供一种功率控制方法、装置、设备及存储介质,通过从电池系统中多个电池单体的电压值中,确定最低的电压值;根据所述最低的电压值与欠压阈值之间的差值,确定预欠压修正系数;根据所述预欠压修正系数与所述电池系统的理论输出功率的乘积,控制所述电池系统的实际输出功率。本申请中在电池的充电状态的准确度不高的情况下,可以根据最低的电压值来对电池系统的实际输出功率进行调整,避免由于电池的充电状态不准确而导致的电池放电功率偏大,或欠压故障,进而在新能源汽车的运行过程中,可以有效降低对电池造成的损伤,保护电池。


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    Title :

    Power control method and device, equipment and storage medium


    Additional title:

    一种功率控制方法、装置、设备及存储介质


    Contributors:
    XU ZHILONG (author) / ZHU ZHENGLI (author) / WANG SHIJIE (author) / ZHAO XIAOFENG (author) / LI TE (author) / WU ZHIBIN (author) / WANG ZHUANGZHUANG (author) / ZHANG KUI (author) / LIU SEN (author)

    Publication date :

    2023-11-10


    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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