[Cracking the problem of charging electric vehicles with high-powered on-board chargers] As a key point in the automotive industry in recent years, new energy vehicles have been increasingly supported by various countries at the policy level and the investment of car companies has increased dramatically. The trend of the outbreak. Take the Chinese market as an example. In 2017, the production and sales volume of China's new energy vehicles reached 774,000 vehicles and 777,000 vehicles respectively, ranking the first in the world for three consecutive years. In particular, pure electric vehicles, which accounted for over 80% of both sales and sales in the past year, are worthy of the name of the new energy vehicle market.
However, with the continuous expansion of the electric vehicle market, the number of possessions has increased substantially, and a series of industrial development problems have followed. One of the most prominent problems is the charging problem. Due to insufficient technological breakthroughs, the current charging time of electric vehicles is much longer than that of diesel locomotives. Compared with the traditional infrastructure of fuel vehicles, electric vehicles also have serious shortcomings. As of the end of 2017, a total of 21 public charging piles have been built in China. Ten thousand, the total vehicle pile ratio is about 8:1, and the overall gap in charging facilities is relatively large. Under this background, how to quickly and effectively solve the problem of charging electric vehicles has become an urgent problem to be solved in the entire automotive industry.
High-power car charger unveiled at Beijing Auto Show
At the just-concluded Beijing Auto Show 2018, Gasgoo reporters saw a new solution at the Porsche stand of the German ultra-luxury car brand. It is understood that in order to allow the vehicle to achieve rapid charging, Porsche carried a high-power on-board charger on its new Mission E vehicle, which greatly improved the AC charging speed.
So, if we only vigorously popularize the above-mentioned high-power vehicle-mounted chargers, the charging problems that have plagued the new energy automotive industry will be resolved. If the Porsche Mission E can really achieve such a high charging efficiency, can it be considered that it is not just a car but a technological revolution, a revolution that really caused the electric vehicle to break through the bottleneck and achieve spurt growth? ?
In response to these problems, Gasgoo's reporter then interviewed a Shenzhen-based company that holds related on-board charger technology and is also a listed company for Porsche's on-board charger suppliers. The person in charge said that the importance of developing high-power on-board chargers for new energy vehicles is undoubtedly significant, but it will take some time to completely "cure" the problems of charging electric vehicles because the problem of charging for electric vehicles is actually difficult. It is in many ways. Apart from the many technical issues and insufficient infrastructure, there are also many problems that need to be solved, such as operating costs and profit models.
“Using cost as an example, according to the current average market price, the average cost of a slow charging public charging pile is about 20,000 yuan, and the cost of quick charging piles is between 100,000 yuan and 200,000 yuan, plus land use fees and basics. The costs of facilities, distribution facilities, operations, etc. will hardly achieve profitability in the short term."
Not to mention that many car companies themselves have also participated in the design of charging piles, and the differences between different manufacturers in charging interface standards are very obvious, resulting in the inability to share charging piles between different brand cars. In addition, the information between the charging pole operators is not interconnected. As a result, the terminal users cannot share the information of all the charging piles on one platform at the same time. In the past, many charging piles have not been fully utilized, which has virtually increased the operating costs.
How to ease the charging "illness"?
Although the difficulty of electric vehicle charging involves multiple levels, it is undeniable that the emergence of high-power car chargers has indeed eased this problem to a large extent. Why do you say that?
According to the above-mentioned interviewees, electric vehicles equipped with the company's high-power on-board chargers can achieve faster charging speeds with only three-phase AC power. In this way, the capacity of the power battery can be greatly reduced, the system cost and the maintenance cost can be reduced, and the availability of the electric vehicle can be greatly improved. â€
Not only that, the AC fast charging system can also make charging piles for electric vehicles no longer a necessity – this is already stated on the Mission E model. If it is popularized in the future, it will significantly reduce the capital and land for car companies in charging pile construction. Investment, said the above person. After all, the current construction of charging piles, the cost often occupies a large part of the expenditure, and the geographical location also has strict requirements, if relying on AC fast charging system, to achieve destabilization, it is indeed an effective way to reduce financial pressure.
“There is one more important point. Compared to the practice of increasing the cruising range by changing battery pack capacity, it is more economical to increase charger power. For example, the current average cost of power batteries in the market is about 1,500 yuan/year. kWh, while the average battery capacity of a pure electric vehicle is 30KWh, so the battery cost alone is about 45,000 yuan, which accounts for the higher cost of the entire vehicle, while the average cost of the charger is about 500 yuan/kW, and the cost advantage is clear at a glance. ."
Specific to the car, taking a certain pure electric logistics vehicle on the market as an example, it is estimated that the use of AC fast charging method, compared to the traditional low-power AC slow charging method, can reduce the system cost of about 64%. In the longer term, once the technology is popularized, it will not only drastically reduce the cost of electric vehicles, increase the availability of electric vehicles, and speed up the adoption of electric vehicles. It will also help reduce the pressure on power battery recycling and reduce the Damage to the environment.
"Of course, from another point of view, the emergence of high-power car chargers is actually a trend. It can be seen that although the vast majority of car charger products currently on the market power 6.6kW, but in fact 11kW The on-board chargers have also become mainstream in China, and with the continuous breakthrough of related technologies and new energy vehicles, the requirements for charging convenience, charging speed, and maintenance cost of on-board chargers are constantly rising, and it is expected to move toward higher power in the future. Directional developments, such as the high-power chargers on the Mission E, are now being piloted in Europe."
In the future, as more and more companies participate and relevant technologies and equipment mature, the above-mentioned respondents believe that although high-power car chargers are only a new technology that has just started, they are in terms of costs, supporting parts and other In terms of infrastructure, there are still some limitations, and large-scale commercial use is only a matter of time.
"Especially with the launch of the Porsche Mission E, its fast-charging secret weapon is bound to be gradually unlocked and quickly spread in the market. By then, according to Moore's Law, it is expected to bring revolution and blowout development to the entire electric vehicle industry - electric The car is no longer implicated in the cruising range, as well as the limitations of infrastructure such as charging piles and charging stations; electric car manufacturers do not have to worry about installing more batteries for electric vehicles to increase mileage, and the cost of the entire electric vehicle can be significantly increased. Decline, by that time, electric cars are expected to enter a real boom!"
For diifferent USB types, micro USB, mini USB, etc. The logo, color or shape can all made as customers' requirement. With more than ten years of experience and capabilities assisting our customers in various industry, ETOP would be confident to be your qualified AVL and reliable manufacturing partner.
Related Products:usb cable,micro usb cable,usb data cable.
Data Cable,Data Flexible Electrical Magnetic Cable,Usb Data Cable,Micro Usb Cable,USB Connector
ETOP WIREHARNESS LIMITED , https://www.oemmoldedcables.com