The invention discloses a method for determining the state of charge of a battery in a high-frequency pulse alternating current heating mode and a vehicle. The method comprises the steps that battery parameters of a battery in a high-frequency pulse alternating current heating mode are obtained, and the battery parameters comprise the first heating duration, the attenuation coefficient, and the initial battery temperature and the initial charge state of the battery at the starting moment of the first heating duration, the initial consumption state of charge is used for representing the state of charge consumed by the battery in the process from the initial moment to the end moment of the first heating duration; based on the initial charge state, the initial battery temperature, the first heating duration and the attenuation coefficient, obtaining a correction coefficient; and obtaining a target state of charge based on the initial state of charge, the initial consumption state of charge and the correction coefficient. According to the invention, the technical problem that the accuracy of the state of charge is low because the accurate electric quantity and voltage value cannot be obtained is solved.
本发明公开了一种高频脉冲交流加热模式下确定电池荷电状态的方法和车辆。其中,该方法包括:获取电池在高频脉冲交流加热模式下的电池参数,其中,电池参数包括:第一加热时长、衰减系数、电池在第一加热时长的起始时刻的初始电池温度和起始荷电状态,其中,初始消耗荷电状态用于表征电池从第一加热时长的初始时刻至结束时刻的过程中所消耗的荷电状态;基于起始荷电状态、初始电池温度、第一加热时长和衰减系数,得到修正系数;基于起始荷电状态、初始消耗荷电状态和修正系数,得到目标荷电状态。本发明解决了由于无法获取准确的电量和电压值造成的荷电状态准确度较低的技术问题。
Method for determining state of charge of battery in high-frequency pulse alternating current heating mode and vehicle
高频脉冲交流加热模式下确定电池荷电状态的方法和车辆
2023-04-07
Patent
Electronic Resource
Chinese
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