What is the future of the automotive wireless charging trilogy?

- Sep 10, 2018-

    While the future is full of uncertainty, people are always keen to imagine a new life without experience.The concept of wireless charging was first proposed 100 years ago, and has since been widely thought about.Everything from cars and devices to mobile phones and electric toothbrushes seems to be connected to wireless charging.Now that mobile phone wireless charging has become a reality, what about car wireless charging?

wireless

    From the perspective of current market performance, the wireless charging of cars is mainly divided into three situations:

    First, traditional cars are equipped with on-board wireless chargers.

    Second, the main body is still a traditional car, but the interior design has a special wireless charging area for mobile phones.

    Third, new energy electric vehicles driven by electric power, while supporting wireless charging as one of its main charging methods.

The first vehicle wireless charging, which is more similar to adding equipment, is an accessory of the car.

    At the SEMA exhibition in 2010, audi exhibited the in-car wireless charging accessories in cooperation with qualcomm and Peiker. At this time, Volkswagen's ERL lab was doing research on the wireless charging console similar to Power Mat. These are the early on-board wireless charging products.Entering 2017, mobile phone wireless charging has grown rapidly, and in-car wireless chargers have seen new changes.

    Not only new ideas such as magnetic attraction, buckle and automatic mechanical arm were introduced in appearance and style, but new technologies such as WE9018 were also introduced in core technologies.It supports the horizontal deviation of + / - 15mm and has a significant breakthrough compared with the traditional Qi of + / - 8mm.

The vehicle scene is prone to vibration, and the larger the horizontal offset range, the less likely it is for wireless charging to be interrupted due to position deviation.

    The second is to design the wireless charging directly into the body of the car, which is usually combined with the utility box, and the mobile phone can be charged in it.

Chrysler's jeep freedom light at the end of 2013 was an early example of this design, and today similar designs appear in a number of new models, including the zotye Z560, dongfeng Peugeot 5008 and lexus NX.

The advantage of this design is that wireless charging is integrated into the car, unlike the added on-board wireless charger which may have wires wrapped around it.

However, it also has the disadvantage that the operation such as navigation and call after charging is not as convenient as the vehicle, which can provide users with other services while charging.

    The third is the most highly regarded direction at present -- upgrading the cable charging piles of electric cars to wireless charging.

Electric vehicles have been emerging since the 19th century, but manufacturers have been unable to make much progress in this field due to technological limitations.

    Until the success of tesla, the industry has reignited the spark for electric vehicles.

After wireless charging took off in 2007, electric car research companies, including Toyota, general motors and nissan, began looking at it.

wireless charging for car

    At present, wireless charging technology is mainly divided into two categories: electromagnetic induction and magnetic resonance.Electromagnetic induction mainly relies on small power wireless charging, which is generally used in small electronic products such as mobile phones.

Magnetic resonance mainly focuses on high-power wireless charging, which requires less distance and precision. Wireless charging of electric cars generally adopts this method.

    The foreign companies studying this technology mainly include qualcomm and WiTricity, and some of them have entered the actual application stage.Due to the high threshold of this technology in China, there are not many companies engaged in professional research, mainly byd and weigeese technology.The former applies it to electric buses, while the latter focuses on the cross-collision of various wireless charging, introduces new technologies such as qi-compatible magnetic resonance, and has conducted exchanges and cooperation with brands such as saic.

    All of the above three types of wireless charging are the performance of the car's wireless charging application. It is impossible to say who is better, but at some stage who is more suitable.

In the traditional car is still the mainstream at present, on-board wireless charging is a better choice.

The wireless charging speed of mobile phones is faster than that of cars, and the on-board equipment can properly fill this gap. In fact, the final development of wireless charging bins is the same as that of the third kind. In the end, the technology is more and better integrated into electric vehicles, which is also the general direction of wireless charging in mainstream awareness.

    Although there are still many problems in the wireless charging of cars, it is still worth expecting as a more safe, convenient and reliable way of charging energy.There are deep reasons why established carmakers are racing to choose this route.As the wireless charging trend of mobile phones becomes clearer, the wireless charging of cars may also go beyond the current state and enter a new development stage.