The invention provides a DCDC charging control method for an electric vehicle, which comprises the following steps: acquiring the running state of the vehicle and the residual capacity of a storage battery, the running state including a vehicle standing state, a whole vehicle low-voltage running state, a whole vehicle high-voltage power-on state and a whole vehicle charging state; if the residual capacity of the battery is smaller than a set electric quantity threshold value, the whole vehicle controller controls a DCDC device to charge a storage battery until the electric quantity of the storage battery reaches 100%; and the standing charging time required when the capacity of the storage battery reaches 100% from the set electric quantity threshold value is obtained, and when the vehicle is in a standing state and the electric quantity of the storage battery is reduced to the set electric quantity threshold value, the DCDC device is controlled to charge the storage battery according to the standing charging time. According to the invention, the intelligence of DCDC charging control can be improved, and the energy consumption can be reduced.
本发明提供一种电动汽车的DCDC充电控制方法,包括:获取车辆的运行状态和蓄电池的电池剩余容量,所述运行状态包括:车辆静置状态、整车低压运行状态、整车高压上电状态和整车充电状态;如果所述电池剩余容量小于设定电量阈值,则整车控制器控制DCDC装置对蓄电池进行充电,直至蓄电池的电量达到100%;获取蓄电池从设定电量阈值至100%容量时所需的静置充电时间,并在车辆静置状态时,当蓄电池电量降至所述设定电量阈值时控制DCDC装置按所述静置充电时间对蓄电池进行充电。本发明能提高DCDC充电控制的智能性,减少能源消耗。
DCDC charging control method of electric automobile
一种电动汽车的DCDC充电控制方法
2024-05-31
Patent
Electronic Resource
Chinese
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