The invention relates to the technical field of battery pack management, in particular to a current output method and device of a battery, a vehicle and a storage medium. Determining a current battery current value according to the current temperature and the current state of charge, and determining a real-time available current value of the battery based on the current battery current value; and determining the current maximum allowable discharge current of the battery based on a preset pre-undervoltage fault, and taking the smaller one of the real-time available current value and the current maximum allowable discharge current as the final output discharge current. Therefore, the problems that in the prior art, energy is redundant, the electric quantity of the battery is over-discharged, and the vehicle cannot run when the SOC value is abnormal are solved, by introducing SOC value judgment, combining the bucket method with pre-undervoltage protection and other means, normal operation of the vehicle and the accuracy of SOP estimation output current are guaranteed, and the service life of the battery is prolonged.
本申请涉及电池组管理技术领域,特别涉及一种电池的电流输出方法、装置、车辆及存储介质,方法包括:获取电池的当前温度和当前荷电状态;根据当前温度和当前荷电状态确定当前电池电流值,并基于当前电池电流值确定电池的实时可用电流值;基于预设的预欠压故障确定电池的当前最大允许放电电流,并将实时可用电流值和当前最大允许放电电流中的较小值作为最终输出放电电流。由此,解决了现有技术存在能量冗杂、电池电量过放、SOC数值异常时车辆无法行车等问题,通过引入SOC数值判断,结合水桶法与预欠压保护等多种手段,保证了车辆的正常运行以及SOP估算输出电流的精确性,并延长了电池的使用寿命。
Battery current output method and device, vehicle and storage medium
电池的电流输出方法、装置、车辆及存储介质
2025-05-30
Patent
Electronic Resource
Chinese
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