The invention provides a battery charge state determination method and device, a vehicle and a storage medium. According to the method, multiple times of equalization are carried out on a target battery, and the difference value (multiple first capacity values) between the actual capacity difference of the target battery and the corresponding equalization capacity from the first equalization to the second equalization in every two adjacent equalities in multiple equalization processes can be determined; and the sum (a plurality of second capacity values) of the total charge and discharge capacity corresponding to each actual capacity difference and the corresponding power consumption. And according to the principle that each first capacity value in the plurality of first capacity values is the same as the corresponding second capacity value, multiple factors influencing the accuracy of the state of charge of the battery are compensated, and an electric quantity compensation factor and a current proportion compensation factor corresponding to the target battery are determined. Furthermore, the compensation factor is accurately calculated, so that the vehicle can accurately estimate the charge state of the target battery in the actual vehicle using scene, and the evaluation on the residual working capability of the target battery is improved.
本申请提供电池荷电状态的确定方法、装置、车辆及存储介质。该方法对目标电池进行多次均衡,能够确定多次均衡过程中各相邻两次均衡中的第一次均衡到第二次均衡时目标电池的实际容量差与对应的均衡容量之间的差值(多个第一容量值),以及各个实际容量差对应的充放电的总容量与对应的电量消耗量之和(多个第二容量值)。通过多个第一容量值中的各个第一容量值应与对应的第二容量值相同的原理,对多种影响电池荷电状态的准确性的因素进行补偿,确定目标电池对应的电量补偿因子和电流的比例补偿因子。进一步地,通过对补偿因子进行准确地计算,车辆能够在实际用车场景中准确地估算目标电池的荷电状态,提高对目标电池的剩余工作能力的评估。
Battery charge state determination method and device, vehicle and storage medium
电池荷电状态的确定方法、装置、车辆及存储介质
2025-02-25
Patent
Electronic Resource
Chinese
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