Bijie Electric Vehicle Maintenance Factory
Although the proportion of new energy vehicles is increasing year by year, its absolute number is much less than that of fuel vehicles. According to the reporter, consumers are dissatisfied with new energy vehicles (mainly pure electric vehicles) mainly in the following two aspects: first, there are relatively few charging piles and charging time is long. Although it is convenient to install by yourself, it is an indisputable fact that in a big city like Beijing, there are only a few parking spaces of their own, and most of them are parked at the roadside. Second, the endurance mileage is not long enough. If you travel far, you will be in trouble once you cannot find the charging post. Chen Qingtai, president of the China Electric Vehicle Hundred People Association, believes that the basis for the rapid growth of electric vehicles is that the cost performance and convenience of electric vehicles should reach or exceed that of fuel vehicles. Therefore, in addition to technological progress, charging infrastructure construction must also keep pace.
Bijie Electric Vehicle Maintenance Factory
The function of the charging post is similar to that of the gas dispenser in the gas station. It can be fixed on the ground or wall, installed in public buildings (public buildings, shopping malls, public parking lots, etc.) and residential parking lots or charging stations, and can charge various types of electric vehicles according to different voltage levels. The input end of the charging pile is directly connected with the AC power grid, and the output end is equipped with a charging plug for charging the electric vehicle. Generally, the charging pile provides two charging methods: conventional charging and fast charging. People can use a specific charging card to swipe the card on the human-computer interaction interface provided by the charging pile to print the corresponding charging method, charging time, cost data and other operations. The charging pile display screen can display the charging amount, cost, charging time and other data.
Bijie Electric Vehicle Maintenance Factory
When the charging post is built, it should be used and managed well. The implementation of management responsibility and clear operation mode can make the charging pile safe and reliable. At present, the charging pile is faced with the problem of unclear management responsibility and unclear operation mode. There are some problems such as the aging of distribution facilities in the community, who will pay for the reconstruction, the quality of piles is mixed, and who will solve the hidden fire hazards. The same is true of public charging posts. There are not many DC fast charging piles with high investment standards and high power, but "problem piles" and "zombie piles" are common. In recent years, the number of charging pile construction and operators in China has grown rapidly, but the level of enterprises is uneven.
Bijie Electric Vehicle Maintenance Factory
In this environment, major automobile manufacturers in the automobile industry are also constantly shifting their focus to the research and development of new energy vehicle technology, and have also launched many new energy vehicles to replace oil with electricity and reduce emissions. This also represents the new direction of future automobile development. In China, friends who pay more attention to cars can see that more and more new energy vehicles are running on the road. More people are also aware of the benefits that new energy vehicles bring to the earth. The country is also introducing various preferential policies to vigorously promote the development of new energy vehicles. However, the main reason why some people are unwilling to buy new energy vehicles is the lack of endurance and inconvenient charging. However, with the continuous popularity of electric vehicles, these problems will certainly be solved in the future. Previously, the country also made a series of decisions in order to facilitate the charging of cars in the future.
Bijie Electric Vehicle Maintenance Factory
What should be paid attention to when charging electric vehicle batteries? When the electric vehicle starts and goes uphill, it is necessary to avoid emergency braking and acceleration as much as possible, because large current discharge will be formed during this process, which will damage the performance of the battery. There are also two points that need special attention when stopping for a long time. 1. Parking without power supply should be avoided: unlike traditional gasoline vehicles, electric vehicles have their own "unique taste" for the state of vehicle parking. If the "hungry stomach" is used too long, it will "rebel". When the electric vehicle is parked in the case of power loss, the battery is prone to sulfation, blocking the electric ion channel, resulting in insufficient charging and declining battery capacity. 2. Deep discharge shall be carried out regularly: when the electric vehicle is almost out of power, undervoltage protection will automatically occur, but during this process, its voltage is unstable, and it will also be up and down, causing repeated undervoltage protection status
Bijie Electric Vehicle Maintenance Factory
The increase of power battery capacity of new energy vehicles: the fast charging performance of the power battery determines the ceiling of the fast charging pile. The development of DC fast charging pile requires the cooperation of the power battery. At present, battery manufacturers such as Ningde Times and BYD are trying to improve the energy density of batteries to enhance the endurance. In 2020, the energy density of new pure electric passenger vehicles has basically exceeded 150Wh/kg, and the average endurance mileage has exceeded 400km. The improvement of the endurance mileage of new energy vehicles has improved the practicability of high-power DC public piles, and accelerated the preference of vehicle owners for DC piles, which is the key reason why DC piles will become the choice direction of public piles in the future.
