DC charging system and charging method for electric automobile

Abstract

The invention discloses a DC charging system for an electric automobile. The DC charging system for the electric automobile comprises a DC charging pile, an upper computer, an upper computer database, a movable client terminal and an electric automobile battery management system. The DC charging pile comprises a processor and an operation platform, a communication module, a charging device and a billing module connected with the processor. The upper computer communicates with the communication module in a wired or wireless mode, the movable client terminal communicates with the processor through the wireless signal, the electric automobile battery management system is connected with the processor through the charging device. A charging method using the system is also disclosed, the system and the method can realize self-service, intelligent operation and rationalization for the electric automobile, the user can charge the electric automobile by themselves, a large number of manpower is not required for the charging station, so the manpower expenses can be greatly saved, the charging mode of the electric automobile is simpler, quicker and reliable.

Description

technical field [0001] The invention relates to a charging system and method, in particular to a DC charging system and method for electric vehicles. Background technique [0002] As a new energy vehicle, electric vehicles have the advantage of being non-polluting, and are more and more popular and valued by people. Among the electric vehicles under development are battery powered electric vehicles, hybrid electric vehicles that use both electric motors and engines, and fuel cell electric vehicles. Among them, plug-in hybrid vehicles and pure electric vehicles are electric vehicles that receive the power required for driving from a high-voltage battery placed inside the vehicle. [0003] With the low-carbon economy becoming the main theme of my country's economic development, electric vehicles, as an important part of the new energy strategy and smart grid, and one of the strategic emerging industries determined by the State Council, will surely become the focus of the deve...

AI Technical Summary

Problems solved by technology

Secondary batteries have the following disadvantages, such as less stored energy, short life, problems in series and parallel use, safety in use, and difficulty in estimating battery power, etc.

[0009] Due to the single charging method of the charger, the long charging time, and the complexity of the charging objects, the existing electric vehicle charging stations have poor practicability and cannot be applied to the increasing market demand for electric vehicles.

Images