Volvo, a well-known Swedish car brand, officially said that Volvo is testing wireless charging technology, and in the next three years, Volvo will provide wireless charging services for the electric version of XC40 operated in Sweden, which means that this technology is not PPT technology and will land in the next three years.
In fact, wireless charging is not a new thing, in the field of mobile phones this technology has long been popularized, although the previous wireless charging is not optimistic, think that its charging power is low, but today's mobile phone wireless charging has reached more than 100 watts of power, has become the flagship mobile phone standard, and now this technology is also going to start in the field of electric vehicles.
Wireless charging technology, the current structure and mobile phones are similar, are installed in the chassis of the vehicle energy receiving device, through the ground energy transmitter device, the electrical energy is transmitted to the energy receiving device, and then charged into the lithium battery. Many car companies have tried to develop wireless charging technology for cars before, including BMW once developed a 3.2kW wireless charging system, which has low charging efficiency.
But Volvo's wireless charging technology, is already actually available, its maximum charging power up to 40kW, equivalent to 10 times the home charging pile, according to the XC40 battery capacity of 69kWh to calculate, the battery power from 0 to 100% takes about 100 minutes. As long as the vehicle is parked in the designated parking space, the charging can be completed automatically, and the driver does not need to get out of the car, let alone complete the operation of taking the gun to charge.
Some people say that wireless charging technology is a chicken rib, just a gimmick, charging efficiency is too low. In fact, although this technology is currently relatively low in charging efficiency, with the development of technology, wireless charging technology is definitely meaningful.
First, convenient, wireless charging technology does not need to use a charging cable, stop at a designated location to charge, compared to wired charging is more convenient. In the future, if it can be charged while running, then the mileage anxiety problem of electric vehicles can be completely solved.
The second is safety, most of the spontaneous combustion of electric vehicles occurs in the process of charging, and wireless charging avoids the electric spark that may be generated when wired charging is plugged in and out of the charging tip to a certain extent, which greatly improves safety and reliability.
Once the power of wireless charging can reach more than 100 kilowatts, and the cost of equipment is greatly reduced, wireless charging technology has the possibility of large-scale popularization, just like the current mobile phone charging.
The policy is also supporting the development of wireless charging technology, and the "New Energy Vehicle Industry Development Plan (2021-2035)" issued by the General Office of the State Council proposes to "strengthen the research and development of new charging technologies such as intelligent and orderly charging, high-power charging, and wireless charging." "At present, major car companies are also actively developing wireless charging technology, including BYD, SAIC, Geely, Toyota, Volkswagen and other car companies, are developing wireless charging technology.
At present, the market has formed a charging pile-based, power replacement as a supplementary energy supplement model, wireless charging technology, to the future of new energy vehicles to provide another energy supplement mode, the most important thing is that wireless charging technology can achieve while running while charging, which is the current two energy supplement technology can not achieve, but also for the future development of electric vehicles to bring more possibilities.