Charging pile system based on internet of things and control method of charging pile system

Abstract

The invention provides a charging pile system based on the internet of things and a control method of the charging pile system. The charging pile system comprises a charging station control center, a communication module, a charging pile and a battery pack information storage device. After an electric automobile is in communication connection with the charging station control center, a charging port suitable for the electric automobile is matched by the charging station control center, pairing of the electric automobile and the charging pile is completed, and the electric automobile is guided by generated pairing information to the charging position of the charging pile. According to the charging pile system based on the internet of things and the control method of the charging pile system, an applicable charging instruction is obtained through matching of the battery pack information storage device and electric automobile battery information, unstable influence on the power grid load caused by charging of the electric automobile is effectively avoided, and both the expectations of consumers for the driving distance, the performance and the reliability of the electric automobile and the expectations of an accumulator of the electric automobile for the time, the cost and the convenience which are related to charging are improved; and the pairing information guides the electric automobile to a charging area, the charging convenience and rapidness of the electric automobile are improved, and the applicability of the electric automobile in the process of generalization and popularization is guaranteed.

Description

technical field [0001] The invention relates to a vehicle charging system, in particular to a charging pile system based on the Internet of Things and a control method thereof. Background technique [0002] Electric vehicles (EVs) require periodic recharging, which is done by connecting the EV to a charger, which receives its power from the supply line. The power consumption characteristics of an EV charger are such that when an EV is initially charged, the EV charger draws a significant amount of power; conversely, when no EV is connected to the charger, or when an EV is connected but it has an "almost full" ” charge or a “full” charge, the charger requires very little or no power. [0003] In all cases, the ratio of time the charger is drawing power to charging the EV is less than 100%, and in some cases, can be very low, only a few percent. Although the charger can automatically turn off EV charging when the EV charge is full, the infrastructure of the power supply line...

AI Technical Summary

Problems solved by technology

Although the charger can automatically turn off EV charging when the EV charge is full, the infrastructure of the power supply line and other specific locations is rated to support a roughly fixed amount of power, which makes the charger underutilized and even more inefficient. It is beneficial to the user's charging experience. If you want more chargers, you must build additional electrical infrastructure with additional costs and delays, which will greatly increase additional costs and affect the approval of EVs and smooth entry into the market.

[0004] At the same time, in the process of EV popularization, plug-in hybrid vehicles also need to be recharged to take advantage of the lower energy costs associated with the established infrastructure. Due to the rapid promotion and popularization of electric vehicles in China, the manufacturers, standards, and battery management systems of electric vehicles are also varied, the number of charging stations (piles) is small, the distribution is unreasonable, and users are worried about the difference in charging of battery packs, etc., which restrict electric vehicles. The biggest bottleneck in the convenience of daily use and further adoption

[0005] The application number is 201480025893.3, and the application date is 2014.05.13. The applicant disclosed a PCT patent application in China with the patent name of a location-based charging control system for Tesla Motors. This patent provides a location-sensitive The charging instruction set automatically charges the storage battery pack of the electric vehicle. Different charging instruction sets are set according to different locations of the vehicle. The charging instruction set includes preset charging plans and preset charging level limits, different charging plans and Different charging level limits are preset for different charging stations and locations. The user selects the preferred charging station and charging plan in the charging instruction set according to the location of the vehicle. This charging method uses the electric vehicle to select the charging station according to the location, although To a certain extent, it improves the applicability of electric vehicles and charging stations, effectively avoids the risk of electric vehicles causing instability to the load on the grid, and enables the charging system to meet consumer expectations related to convenience and the potential associated with electric vehicles. Energy saving, but the charging interface in this charging method cannot match the charging information compatible with the battery pack of the electric vehicle, and when there are many charging users, there are many obstacles in the mutual matching between the electric vehicle and the charging pile. It causes a waste of power resources. On the other hand, it is difficult to find suitable charging piles during the busy charging period. If all charging piles with maximum output power are used, on the one hand, it will cause a lot of waste of power resources. On the other hand, it will also make charging piles, charging piles The cost of the station is too high, which affects the user experience, thereby affecting the popularization and application of electric vehicles

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