The invention discloses a charging remaining time calculation method and device, and the method comprises the steps: judging whether a target SOC value and a target charging current change or not, and determining a charging mode of a battery as a first charging mode if the target SOC value changes; in the first charging mode, if the target SOC value changes in the charging process, the battery capacity, the estimated current, the estimated current coefficient and the charging remaining time before the target SOC value changes are obtained; and calculating the charging remaining time of the battery in the first charging mode according to the target SOC value, the battery capacity, the estimated current, the estimated current coefficient and the charging remaining time before the target SOC value changes. According to the technical scheme provided by the embodiment of the invention, the estimation current coefficient is increased, the calculation of the remaining charging time according to the coefficient is more accurate, the error between the actual current and the estimation current is reduced, the problems of large error and poor calculation precision of the existing calculation method of the remaining charging time are solved, and the calculation precision is effectively improved.
本发明公开了一种充电剩余时间的计算方法及装置,方法包括:判断目标SOC值和目标充电电流是否发生变化,若目标SOC值发生变化,则确定电池的充电模式为第一充电模式;在第一充电模式下,若目标SOC值在充电过程中发生变化,则获取电池容量、预估电流、预估电流系数以及目标SOC值发生变化之前的充电剩余时间;根据目标SOC值、电池容量、预估电流、预估电流系数以及目标SOC值发生变化之前的充电剩余时间,计算电池在第一充电模式下的充电剩余时间。本发明实施例提供的技术方案,通过增加预估电流系数,根据该系数计算充电剩余时间更加精准,实现减小实际电流与预估电流之间的误差,解决了现有的充电剩余时间的计算方法存在较大误差、计算精度差的问题,有效提升了计算精度。
Method and device for calculating remaining charging time
一种充电剩余时间的计算方法及装置
2024-11-29
Patent
Electronic Resource
Chinese
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