The embodiment of the invention discloses a charging method and a charging device for an automobile electrical system, relates to the field of charging of electric automobiles, and can simplify the topological structure of a high-voltage pre-charging loop, thereby reducing the hardware cost of the high-voltage pre-charging loop, and enabling the hardware circuit of the high-voltage pre-charging loop to be simple in maintenance and high in fault maintenance efficiency. The charging device comprises a battery system and a charging circuit. The total positive electrode of the battery system is connected with one end of the charging circuit; the other end of the charging circuit is used for being connected with one end of a pre-charging capacitor; the total negative electrode of the battery system is used for being connected with the other end of the pre-charging capacitor; the charging circuit comprises a resistor, a first switch and a second switch, the resistor and the first switch areconnected in series between the total positive electrode of the battery system and the pre-charging capacitor, and the second switch is connected in parallel between the resistor and the two ends of the first switch. The charging device and the charging method are suitable for charging the high-voltage electrical system of the electric automobile.
本发明实施例公开一种汽车电气系统的充电方法及充电装置,涉及电动汽车的充电领域,能够简化高压预充电回路的拓扑结构,从而减小了高压预充电回路的硬件成本,并且使高压预充电回路的硬件电路维修简单、故障维修效率高。所述充电装置包括电池系统和充电电路,所述电池系统的总正极与所述充电电路的一端相连,所述充电电路的另一端用于与预充电电容的一端相连,所述电池系统的总负极用于与所述预充电电容的另一端相连,其中,所述充电电路包括电阻、第一开关和第二开关,所述电阻和所述第一开关串联在所述电池系统的总正极与所述预充电电容之间,所述第二开关并联在所述电阻和所述第一开关的两端。本发明适用于给电动汽车高压电气系统进行充电。
Charging method and charging device for automobile electrical system
一种汽车电气系统的充电方法及充电装置
2020-06-30
Patent
Electronic Resource
Chinese
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY |
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