The invention provides a charging method and device of a power battery, a charging management system and a vehicle. The method comprises the steps that the current battery temperature, the current battery charge state and the maximum charging power of a charger are acquired; determining corresponding charging request power according to the battery temperature and the battery charge state; determining whether the charging request power is less than the maximum charging power in response to the condition that the battery temperature is less than a first threshold value: controlling the charger to charge the power battery according to the maximum charging power in response to the condition that the charging request power is greater than or equal to the maximum charging power; and in response to the charging request power being smaller than the maximum charging power, controlling the charger to charge the power battery, and controlling the heater to heat the power battery. According to the invention, the charging request power is determined based on the battery temperature and the battery charge state, and the stages of charging and heating the power battery are determined according to the relationship between the charging request power and the maximum charging power, so that the power battery is fully charged at a low temperature in any charging scene.
本公开提出一种动力电池的充电方法、装置、充电管理系统及车辆。该方法包括:获取当前的电池温度、电池荷电状态及充电机的最大充电功率;根据电池温度及电池荷电状态,确定对应的充电请求功率;响应于电池温度小于第一阈值,确定充电请求功率是否小于最大充电功率:响应于充电请求功率大于或等于最大充电功率,控制充电机按照最大充电功率向动力电池充电;响应于充电请求功率小于最大充电功率,控制充电机对动力电池充电,同时控制加热器对动力电池加热。本公开基于电池温度及电池荷电状态确定充电请求功率,并根据充电请求功率与最大充电功率的关系确定给动力电池充电及加热的阶段,由此,实现了在任意充电场景下,动力电池低温时充满电。
Charging method and device of power battery, charging management system and vehicle
动力电池的充电方法、装置、充电管理系统及车辆
27.10.2023
Patent
Elektronische Ressource
Chinesisch
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