Traditional Culture Encyclopedia - Traditional culture - Electric Vehicle Charging System Schematic Diagram
Electric Vehicle Charging System Schematic Diagram
The power from the grid or storage device needs to be converted by charging equipment to match the technical characteristics of the electric vehicle's power battery in order to complete the charging. The conversion process of the charging equipment also needs to be negotiated with the power battery management system BMS (Battery Management System) on the electric vehicle to complete the charging with the appropriate voltage and current, and in the charging process, the charging current will be reduced with the charging process, the initial period can be charged faster with high current, and the later period of time can be charged slower with low current. AC slow charging: AC charging pile does not have a power conversion module, does not do AC/DC conversion, the output AC power, access to the car, through the car's charger converted to DC power and then enter the battery. The charging power depends on the power of the vehicle charger. At present, the mainstream car charger has 2Kw, 3.3Kw, 6.6Kw. Overall charging is slow, general hybrid models need to be filled in 4-6 hours, pure electric vehicles to be filled in more than 8 hours, charging rate is basically below 0.5C. DC fast charging: DC charging pile built-in power conversion module, can be converted to DC grid AC power, without the need to go through the on-board charger conversion, direct access to the car battery. The charging power depends on the battery management system and the output power of the charging pile, and the two take the lesser.
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