What are the advantages of smart charging pile development?

In response to the country's call to vigorously develop the policy of new energy, but also due to the increase in private cars, travel is becoming more and more inconvenient. Battery cars are favored by many people because of their convenience and low price, but charging has always been a hassle. The intelligent charging pile was born in accordance with the times at this time, solved the trouble of people, and brought convenience to people's lives.

1.In terms of changing the charging method: the smart charging pile abandons the traditional coin and card charging methods. Using the advantages of the mobile Internet, the code scanning payment has been realized, which has solved the problem that car owners need to carry change, and has attracted the attention and use of car owners.

3. For dealers: smart charging piles have their own background management system. 24-hour remote monitoring in the background, the client receives port change information in real time, and supports mobile phones to adjust the charging price.

At present, most of the traditional coin-operated and card-swiping charging stations on the market are often under the banner of "smart charging stations", but in fact this is not the case, but it has brought a lot of trouble to power station investors. Taking coin-operated charging stations as an example, investors need to worry about charging stations installed in different communities at all times, not only to run errands every day to collect change and keep books, but also to always worry about the coin box being prying, so that the power station operator is troublesome and laborious, and can not make any money. However, with the emergence of smart charging piles, many card-swiping charging stations imitate individual functions such as scanning code payment and full of self-stopping, which is called "micro-payment smart charging station", but in essence, it still uses the original old model, and a lot of data is still opaque, and users and operators do not feel the convenience of "smart"!

At present, what can be called an intelligent charging station for electric vehicles is a subversive intelligent scanning code charging station. Whether it is in the payment method, charging method, or in the charging process, background data statistics, etc., it can make users and operators feel intelligent and convenient.

The intelligent electric vehicle charging pile system is composed of five modules: cloud platform, mobile payment, charging pile, and display system. The five modules are closely related and indispensable. The cloud platform is the core of the intelligent charging pile system for electric vehicles, the central node of the entire system, and the functions of each module in the system are closely related.

The charging pile is the most important front-end of the Internet of Things of the system, which plays an important role in the front human-computer interaction, mobile payment front-end, charging and black-off system control, and is the most replicable part of the whole system; It has the function of automatic power-off when it is fully charged: relying on big data calculation, it can automatically identify that the battery is fully charged; According to the process of charging the electric vehicle charging pile, the current is constantly changing, and it is in the form of a parabola. When the user first starts charging, the current is slowly rising.

After charging for a certain period of time, the current remains at a high and stable level, and the charging current will gradually decrease until a small "trickle current". According to the above current change is calculated, the charging pile automatically identifies the full self-stop, the calculation module in the charging pile will collect a large amount of current data and calculate, when the calculation result reaches the charging threshold, the control module controls the relay to disconnect the power supply and end the charging. This function effectively prevents the charger from being "overcharged" and protects the electric vehicle and the entire circuit.

System application process: the customer will be notified to the cloud platform after the successful payment of the code scanning, the cloud platform records the customer's order message, and at the same time sends the corresponding pile to start charging instructions, from this moment on, the charging pile control system uploads the charging pile charging data once per minute, and the charging pile display system updates the real-time charging data in real time, when the charging power reaches the power required by the order, it automatically stops charging, reports the end of the charging message of the platform, and the charging pile displays the system prompts that the charging is completed, and the charging is over.

The intelligent charging of the charging pile is used to charge electric vehicles, and its function is like a fuel dispenser in a gas station to refuel fuel vehicles. Charging piles can be fixed on the ground or fixed to the wall, installed in major public spaces, residential areas and charging stations, and then charge various types of electric vehicles according to different voltage levels.

Electric vehicle intelligent charging pile: DC charging pile is generally installed in public places, and its purpose is to allow the vehicle to be charged in a short period of time to replenish more than 50% to 60% of the electric energy. The working methods of smart fast charging piles generally include convenient methods, intelligent methods and discharge methods.

A convenient way to quickly charge charging piles. A conventional constant current and voltage limiting timing charging working mode, when this mode works, the charger charges the load battery constant current with a set current, and when the charging voltage reaches the limit voltage, the voltage no longer rises, and the charging current gradually decreases. When the charging time reaches the set time, the charging pile automatically ends the charging pile process.

In this mode of charging, the current should not exceed 100A, otherwise the battery is not easy to charge, and the gas separation volume is large.

Electric vehicle intelligent charging pile: the initial charging mode is a two-stage automatic charging mode with constant current and fixed time. It is mainly designed for the initial charge of new batteries. In this mode of charging, the current of both stages should not be too large.

Electric vehicle intelligent charging pile: the constant current mode works for constant current when it starts charging, when the voltage rises to the set value, it turns into voltage stabilization work, and automatically stops charging when the charging time reaches the set time or the charging capacity is full, which is the basic process. When the charging time is long enough, the basic process will superimpose periodic discharge pulses, and the superimposed charging process is"Charge-stop-release-stop-charge"。

EV Smart Charger: Fast ModeThe fast mode consists of three sequential phases: constant current, constant voltage, and low current maintenance.

The constant current section is characterized by high-current charging, and when the charging amount reaches the set capacity or the charging time reaches the set value or the voltage rises to the limit value, it ends and is transferred to the constant voltage section; The constant current section can restore about 80% of the capacity of the battery.

The constant voltage section maintains the voltage at the end of the constant current charge, and the current gradually decreases, and when the constant voltage charge reaches the set time, it automatically switches to the maintenance charging process. Fast mode is the same as constant current mode, when the charging time is long enough, the basic process will superimpose periodic discharge pulses, and the superimposed charging process is"Charge-stop-release-stop-charge"。At the end of the constant voltage process, the battery capacity can be restored to more than 95%.

When the charging process shifts to the maintenance charging process, the pulse superposition stops. The discharge method is a function designed for manual discharge of batteries. When entering this mode, the battery is discharged according to the set current, and the discharge will automatically stop when the battery voltage drops to the set value.

Photo by Q&A) Mercedes-Benz S-Class M5 Ideal One Buick GL8 Xpeng P5 Xpeng Motors P7 @2019

The common charging methods of electric vehicles mainly include: public charging and home charging.

Public charging: generally refers to charging in public charging piles (stations), these are generally DC fast charging, which is the fastest charging method, but it is a bit harmful to electric vehicle batteries, and the process of installing the national grid is more cumbersome. In some parking lots, there are column-type column-type charging piles or wall-mounted charging piles, which are basically AC slow charging, and it is also the most used charging method at present.

Home charging: It mainly refers to the use of Pulegu household portable charging gun for charging, this household portable charging gun can be directly inserted into the 220V household electricity plug for charging, and can be directly put into the trunk after charging, waiting for the next charging use. Of course, there are many car owners who have parking spaces, and they all choose to install Pulegu pillar charging piles or wall-mounted charging piles for charging, which can be plug and charge, can be charged by swiping cards, and charging methods such as swiping cards.

In terms of the large category of charging piles, one is a fast charging pile, the other is a slow charging pile, the so-called fast charging pile is a DC pile, and a slow charging pile is an AC pile. In the slow charging pile, first of all, its power is generally 7kw, the voltage is 220v, such an AC charging pile or slow charging pile, it may be 7-8h to fill a car now. Speaking of fast charging piles, the specifications of the mainstream charging piles on the market at present, the power is 120-180kw, this is the mainstream power, the voltage can generally reach 750V, and individual can also go to larger ones or up to 1000V.

Driven by new technologies such as big data, the Internet of Things, artificial intelligence, and virtual assistants, charging piles are becoming more and more intelligent. Currently, users who use their phones for the location of charging devices account for the majority of charging users. Charging customers can also access the system and charge through the mobile client.

The owner of the charging pile can realize the remote monitoring of the charging equipment through the mobile phone to ensure the normal operation of the charging business. In addition, after the pile is paired with the mobile phone, the pile owner can remotely charge the peak through the mobile phone, saving charging costs. These mobile phone applications have fully explored the use function of charging piles, and have greatly improved the efficiency of charging piles.

6108 Technology believes that the market prospect of charging piles is still very broad.

This one is still good, but there are a lot of charging ones.

The overall system of charging pile consists of four parts: electric vehicle charging pile, concentrator, battery management system (BMS), and charging management service platform.

The control circuit of the electric vehicle charging pile (bolt) is mainly completed by the embedded ARM processor, and the user can self-swipe the card for user authentication, balance inquiry, billing query and other functions, and can also provide a voice output interface to achieve voice interaction. Users can choose 4 charging modes according to the LCD display: charging by hour, charging by power, automatic charging, charging by mileage, etc.

The electric vehicle charger controller and the concentrator use the CAN bus for data interaction, and the concentrator and the server platform use the wired Internet or wireless GPRS network for data interaction, and for the sake of security, the electricity billing and amount data are securely encrypted.

The main function of the battery management system (BMS) is to monitor the working state of the battery (voltage, current and temperature of the battery), the battery capacity (SoC) of the power battery and the corresponding remaining driving range, and carry out battery management to avoid over-discharge, over-charge, overheating and serious voltage imbalance between the single battery, and maximize the use of battery storage capacity and cycle life.

The charging service management platform has three main functions: charging management, charging operation, and comprehensive inquiry. Charging management centrally manages the basic data involved in the system, such as electric vehicle information, battery information, user card information, and charging pile (bolt) information; The charging operation mainly manages the billing of user charging; Comprehensive query refers to the comprehensive analysis and query of management and operation data.

The development of the smart charging pile system of the 6108 program is a software and hardware development technology, which is an application designed to provide charging services for electric vehicles. And with the development of new energy vehicles, the development of electric vehicles, the smart charging pile system is more important, can provide users with convenient charging, and actively correspond to the construction of a green society, whether it is an electric vehicle or an electric self-confidence car owners can use, when using the car, when the power is too low, you can query the nearby charging stations or charging piles, open the map to see all the nearby charging stations, but also check the service cost of each charging station, you can choose the nearest and lowest charging point, If you use navigation, you can also find the target charging station quickly and accurately. After arriving at the charging station, you can scan the code with your mobile phone to charge, and after the charging is over, you can pay online for charging, and when it is very time, if it can meet your needs.

The smart charging pile is a special device for charging electric vehicles in the community. Generally, there is an automatic pricing charge, full of self-stop ......Function.

The development of smart charging pile system is a software and hardware development technology, which is an application designed to provide charging services for electric vehicles, combined with the characteristics of charging piles, and endowed with richer functions of charging piles through software development.

Compared with the traditional charging column, the intelligent charging pile is more intelligent, and the function is more complete and more humane. Therefore, it is generally called a multi-** smart charging pile.

Multi-** refers to a human-computer interactive information exchange and dissemination that combines two or more types of ** in a computer system. That is, it is a kind of intelligent charging device that can be advertised, which can charge various models of electric vehicles according to different voltage levels.

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