What are the advantages and prospects of wireless charging?

Since iPhoneX released last year, led to a boom in mobile phone wireless charging, the first quarter of 2018, samsung, huawei, millet with configuration models of wireless charging technology, but after that, each big brand to launch new models are few wireless charging, before launch wireless charging phone also like brands, wireless charging on a mobile phone promotion is also "thunder, little rain". But while the push for mobile phones has stalled, wireless charging is gaining momentum in the automotive sector.

Qualcomm is working on wireless charging technology for its cars, the company said. The announcement comes shortly after BMW said it would launch models with wireless charging technology this year. In 2013, Toyota obtained the right to patent the wireless charging technology, but so far it has not released any production models. In China, during the Beijing auto show this year, the roewe showcased MARVELX's pure electric super coupe SUV and announced that the electric car, which will be available in the second half of this year, will be powered by wireless charging technology, which will be the second production car to support wireless charging after BMW. In the future, the technology will also be available in other roewe electric cars.

This time, unlike previous studies, wireless charging is coming to market. But have the cost, radiation, efficiency and other issues that plagued wireless charging technology before it hit the market been resolved? Can wireless charging really be the ultimate solution for charging electric cars?

Wireless charging is popular

At this year's Beijing auto show, the roewe not only made a lot of money with its highly realistic smart robots, its MARVELX all-electric super coupe SUV also took advantage of the "black tech" of wireless charging. Although wireless charging technology is not a new technology, it has attracted much attention because of its natural convenience but it has not been applied to the market since its birth. The launch of roewe MARVELX was the first new energy vehicle in China to support wireless charging, and roewe announced that wireless charging technology could be installed in other roewe new energy vehicles.

Mr Roewe is not the first. BMW showed off the technology during the guangzhou auto show last year and announced that the cars would be available this year. Carmakers and brands such as Mercedes, audi, Volvo, Toyota, byd, Great Wall, Peugeot and gac vipchi are also preparing for wireless charging, but the plans are good and there is no timetable for when they will be used.

In addition, the promotion of wireless charging technology by car companies is definitely dependent on the support of suppliers. Currently, qualcomm and zte both have relevant technology research and development for car companies. Qualcomm recently announced that its wireless charging technology will appear in mass production models within two years, and it is working with a number of automakers. "" we expect the vehicles equipped with qualcomm's full range of wireless charging technology solutions to be the first to hit the European market in 2019. China is expected to commercialize the technology around 2020." " Shu jie, qualcomm senior technology marketing manager, told China automotive news. He also revealed that qualcomm has been accumulating technology reserves in this technology field for many years, and has been continuously cooperating with various charging service providers such as vehicle manufacturers to verify the market feasibility of the products. At present, the technology has become mature, and will be put into the market one after another along with the launch plans of vehicle manufacturers.

Technical shortcomings are being remedied

"Wireless charging is not a new technology. The reason why it failed to be introduced into the market in the past is mainly because of the low power and low efficiency of wireless charging, and the undemonstrated radiation safety accompanying wireless charging." Yan jianlai, deputy secretary general of the China association of automobile engineers, believes that if these problems of wireless charging can be solved, its advantages such as small land occupation area and convenient charging will be shown and may be accepted by the market more quickly.

"We are pleased to see the technology import market, although its whether the above problem has been completely solve currently we are not conclusive, but any new technology of marketization is a process of trial and error, inspection, believe that with the development of market applications, wireless charging technology can be accepted by the market, its technology is really safe and reliable also will be able to verify." Yan jianlai believes that the industry encourages the development and application of new technologies, but any new technology must also be verified by the market, as long as the market needs to be affirmed. "In the past, the wireless charging technology failed to be introduced into the market because the problems in the above three aspects were not solved. Now, some enterprises dare to put this technology into the market, which to some extent shows that the relevant problems have been solved." Yan jian said. Why such an assertion? In yan's opinion, car companies that focus on user experience will not blindly introduce their technologies into the market without verification.

In fact, qualcomm's answer bears this out. "As technology has evolved, concerns about wireless charging have been addressed. We need to know that before any technology enters the market, it must be verified with certain safety and reliability, and it must meet the requirements of relevant standards before entering the market. As far as I know, both in China and internationally, relevant standards for wireless charging have been put on the agenda to ensure that relevant products are verified before they are applied in the market. According to shujie, currently, the power of qualcomm wireless charging has reached the power of slow charging pile in the market, and its charging efficiency has reached over 90%. It is known that qualcomm wireless charging technology can reduce the charging times of evs by improving the charging power, and it has the interoperability function, supporting all evs with wireless charging function to charge at any wireless charging station of any supplier.

In addition, the survey learned that wireless charging technology previously failed to enter the market, and its high cost. Mr Shujer is optimistic: "first, cost is all about size. Market application is little, cost nature is tall. It is believed that with the increase of market application, the cost will be reduced after being Shared. Take BMW as an example, its positioning of high-end cars also means that consumers have a relatively high acceptance of cost, which is probably the key for BMW to take the lead in introducing wireless charging technology. ShuJie also said that the mature wireless charging technology also contains a lot of smart key auxiliary functions, such as charging guided into bits, living protection, foreign body detection, etc., these functions the user can according to the application scenario options, and choose the more acceptable solution and cost, at the same time, the application of these features combined with automated driving will reduce the comprehensive cost of wireless charging use. "" qualcomm not only provides wireless charging technology, but also works on a comprehensive solution for wireless charging, which can give users a better charging experience. He said.

Like the initial market promotion of new energy vehicles, wireless charging also faces the exploration of business model. Once a suitable business model appears, its marketization may not be a problem.

Advantages show broad prospects

With advantages such as small footprint, high charging convenience, unattended operation, low manual maintenance cost and higher space utilization rate, wireless charging is considered as a better charging method under current technical conditions. It is also because of these advantages that wireless charging technology is not only sought after by car companies, but also become an important part of various future intelligent travel. At the beginning of this year, zhejiang issued a plan, saying that zhejiang will build a super highway, positioning smart, fast, green, safe, this road will build a person, car, road coordination system. According to the plan, the highway will fully support autonomous driving, can also be combined with wireless charging technology to achieve driving while charging, and through intelligent systems, vehicle control, can increase the current average speed of 90 km by 20% to 30%. In addition, many other plans related to wireless charging are also being launched. It can be imagined that when the advantages of wireless charging technology are displayed to the maximum extent, the quality of people's future travel will also be improved.

It is undeniable that wireless charging technology has broad application prospects. Once successfully introduced into the market, it will greatly improve the convenience of charging and better improve the travel experience. "We can't predict future technology development, but at present, wireless charging technology has a good application prospect," yan said. "if we can successfully develop it, it will undoubtedly bring us a better travel experience." Shujie also believes that from the current technology, wireless charging is a better way of technology, with the gradual introduction of this technology into the market, various business models will continue to appear, so as to enrich future travel modes and improve people's travel experience.

The page contains the contents of the machine translation.