The invention aims at providing a charging control method and a vehicle-mounted charger so as to solve a problem of the failure of a battery pre-charging function in an extreme environment in relatedtechnologies. The method comprises the following steps: determining that a charging trigger instruction is received; controlling a pre-charging relay on a pre-charging line to be closed, and controlling a main positive relay of a charging circuit to be disconnected to enable a positive charging terminal of a vehicle-mounted charger to be conducted with the positive electrode of the battery throughthe pre-charging line; and controlling the output voltage of the positive charging terminal to gradually rise until the voltage difference between the two ends of the main positive relay is smaller than a preset voltage difference threshold.
本公开的目的是提供一种充电控制方法和车载充电机,以解决相关技术中电池预充功能在极端环境下失效的问题。所述方法包括:确定接收到充电触发指令;控制预充线路上的预充继电器闭合,并控制充电回路的主正继电器断开,以使车载充电机的正极充电端与电池的正极通过所述预充线路导通;控制所述正极充电端的输出电压逐渐上升,直至所述主正继电器两端的电压差小于预设电压差阈值。
Charging control method and vehicle-mounted charger
充电控制方法和车载充电机
2020-05-12
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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