Development and application of electric vehicle charging pile

Electric vehicle as a development prospect of the broad green transport, the future will be very rapid pace of popularization, the future of the market is also very huge market prospects. In the context of the global energy crisis and environmental crisis is serious, the Chinese government actively promote the application and development of new energy vehicles, charge for power plants as required for the development of electric vehicles an important supporting infrastructure, with a very important social and economic benefits. A campaign to build an 220v EV charger / replacement station is already in the country.
The whole system is composed of four parts: portable electric vehicle charger, concentrator, a battery management system (BMS), charging management service platform.
220v electric car charger, the control circuit is realized by the embedded ARM processor, the user can self card user authentication, balance inquiries, billing inquiries, can also provide voice output interface, the realization of interactive voice. The user can according to the liquid crystal display to choose 4 kinds of charging mode: including charging, charging according to charge, automatically charging, charging according to the mileage, etc..
Electric vehicle charger controller and concentrators using CAN bus for data exchange, concentrator and the server platform using wired internet or GPRS wireless network data exchange, for the sake of safety, electricity charges and the amount of data realized security encryption.
The main function of the battery management system (BMS) is monitoring the battery working state (battery voltage, current and temperature), prediction power battery battery capacity (SOC) and the corresponding residual driving mileage, battery management to avoid over discharge, over charge, overheating and monomer battery voltage is seriously unbalanced phenomenon, to maximize use battery storage capacity and cycle life.
Charging service management platform has three main functions: charging management, charging operation, integrated query. Charging management related to the system of basic data for centralized management, such as information of electric vehicles, battery information, user card information, electric vehicle charging units information; charging operations mainly to the user for charging management, integrated query to query on data management and operation of the comprehensive analysis.

评论

发表评论

此博客中的热门博文

Correct selection of backup time for UPS

图片
UPS backup time is generally a problem concerned by customer in the purchase process. Usually most people prefer to choose the  UPS  which power backup the longer the better, in fact, this is not correct. We must firstly clear that the seller will usually have standard type UPS and long-acting UPS. Standard type UPS with built-in battery, after a power interruption can supply power to the load equipment in general for a few minutes to tens of minutes, of course, the length of time depends on the load. Long acting UPS can not only meet the power requirement of load, but also meet the requirements of customers and work types and so on, so the long-term UPS is usually equipped with an external battery pack. If the client is not particularly strict to the work condition of the load, and the power of the load is not particularly large, usually with standard type UPS would be enough. Because the choice of long backup time UPS is bound to increase the number of battery groups an...
阅读全文

126th Canton Fair

图片
On Oct 15th 2019, as one of the most important trade promotion platforms for Chinese enterprises to expand the global market, Canton Fair in Guangzhou focused on highlighting innovation driven, and “independent brand” became a high-frequency word of Canton Fair. Xu Bing, a spokesman for the Canton Fair and deputy director of the China Foreign Trade Center, said that the domestic and foreign environment faced by China’s foreign trade development this year is more complex and uncertain. The majority of exhibitors accelerated quality improvement and innovation, and continued to make efforts in technology research and development, product innovation, brand cultivation, etc., with high technology, high quality, high added value and independent brand products emerging. Many independent innovative R & D products are welcomed by the market. At the same time, purchasers are less sensitive to price and pay more attention to the technology, brand, quality and service of products. In ...
阅读全文

How to maximize the efficiency of your UPS

图片
1.Use of AC voltage regulator After using  UPS power supply , there is no need to add AC voltage regulator. If it must be added, it should be added to the front level of UPS, that is, the mains power first passes through the AC voltage regulator, then through the ups, and then to the load. 2.Battery balanced charging skills At present, valve regulated lead-acid battery (VRLA) used in many ups power supply is called maintenance free battery from the beginning, which gives users a misunderstanding that it seems that this battery is durable and does not need maintenance at all. Under this kind of misleading, many users have not carried out maintenance and management since they installed the battery. When the battery in UPS power supply meets the following conditions, the battery shall be charged evenly: when the terminal voltage is lower than the specified calibration voltage due to excessive discharge. For 12 V small sealed lead-acid batteries, the discharge calibration voltage is...
阅读全文