The invention provides a battery management method. The battery management method comprises the following steps: acquiring a current high-voltage inflection point electric quantity value of each single battery; acquiring a current historical accumulative balanced electric quantity value of each single battery; calculating to obtain a current equivalent self-discharge capacity value of each single battery; obtaining the equivalent self-discharge capacity value of each single battery at the previous moment; calculating to obtain a target equivalent self-discharge capacity value of each single battery; determining a maximum target equivalent self-discharge capacity value and a minimum target equivalent self-discharge capacity value; calculating to obtain a maximum equivalent self-discharge rate and a minimum equivalent self-discharge rate; and when the difference value between the maximum equivalent self-discharge rate and the minimum equivalent self-discharge rate is greater than a preset threshold value, managing the target single battery corresponding to the maximum target equivalent self-discharge capacity value. The invention further provides a battery management device, a vehicle and a computer readable storage medium. According to the battery management method provided by the invention, the single battery with abnormal self-discharge can be identified by determining the target equivalent self-discharge capacity values of all the batteries.
本申请提供一种电池的管理方法,包括获取每一单体电池的当前高电压拐点电量值;获取每一单体电池的当前历史累计均衡电量值;计算得到每一单体电池的当前等效自放电量值;获取每一单体电池的上一时刻等效自放电量值;计算得到每一单体电池的目标等效自放电量值;确定最大目标等效自放电量值和最小目标等效自放电量值;计算得到最大等效自放电率及最小等效自放电率;在最大等效自放电率与最小等效自放电率的差值大于预设阈值时,对最大目标等效自放电量值对应的目标单体电池进行管理。本申请还提供一种电池的管理装置、车辆及计算机可读存储介质。本申请的电池的管理方法,通过确定所有电池的目标等效自放电量值,可识别出自放电异常的单体电池。
Battery management method and management device, vehicle and computer readable storage medium
电池的管理方法及管理装置、车辆及计算机可读存储介质
2023-07-11
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY |
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