The invention relates to an intelligent charging method and system for an electric vehicle and a storage medium, and the method comprises the steps: S1, before a vehicle VCU is awakened, only DCDC works, the first output current data information of the DCDC is obtained in real time, the vehicle VCU awakening time is calculated through employing a segmented current detection algorithm, and the data information of the vehicle VCU awakening time is output; and S2, based on the data information of the vehicle VCU wake-up time, controlling the vehicle VCU wake-up, enabling the DCDC after the VCU wake-up, obtaining second output current data information of the DCDC in real time, calculating the output voltage of the DCDC by adopting an incremental PI algorithm, and outputting the output voltage data information of the DCDC. The problem that the battery is scrapped due to the fact that the current at the initial stage of charging is too large and the accumulator plate is easy to bend is solved, the battery is self-adaptive to charging, the battery is kept at a proper capacity, the charging current of the battery is limited, and the battery is prevented from being damaged due to too large charging current.
本发明涉及一种电动车智能补电方法、系统及存储介质,所述方法包括:S1.车辆VCU唤醒前,只有DCDC工作,实时获取DCDC的第一输出电流数据信息,采用分段电流检测算法对车辆VCU唤醒时间进行推算,输出车辆VCU唤醒时间的数据信息;S2.基于所述车辆VCU唤醒时间的数据信息,控制车辆VCU唤醒,VCU唤醒后使能DCDC,实时获取DCDC的第二输出电流数据信息,采用增量式PI算法对DCDC的输出电压进行推算,输出DCDC的输出电压数据信息。本发明不仅解决了在充电初期电流过大,容易使蓄电池极板弯曲,造成电池报废的问题,而且自适应电池充电,保持电池在合适的容量,限制电池充电电流,避免电池充电电流过大损坏。
Intelligent charging method and system for electric vehicle and storage medium
一种电动车智能补电方法、系统及存储介质
2024-01-23
Patent
Electronic Resource
Chinese
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