The advantages of wireless power systems in automotive applications

Time：2025-03-15 11:29:46 Read：106

With the application of embedded modems, remote information processing devices, and wireless connections, more and more cars are beginning to have wireless networking capabilities. But currently, in car facilities such as sensors, cameras, and computing control units are still connected through complex cable wiring. The use of wireless power systems can greatly simplify the use of cables, optimize automotive design, and make more in car functions possible.

Fewer car cables

Vehicle mounted information processing equipment, sensors, and other types of in car instruments typically require two power cables and two data cables each.

The use of wireless power systems will greatly reduce the cables required for connecting in car devices, and only one cable that combines data and power functions and runs through the vehicle body can be used to connect all in car devices. The wireless transmission of electrical energy mainly relies on resonant electromagnetic induction, which can transmit power and data information with frequencies between 50mW-1 kW.

General Motors recently announced that it will provide wireless charging devices in its vehicles to charge mobile devices inside the car.

In addition to simplifying the use of cables, wireless power systems will also bring other improvements, such as reducing material production and assembly costs, and making more flexible and effective automotive designs possible.

More flexible design

The single vehicle cable system brought by wireless power will enable car manufacturers to have greater flexibility in designing vehicle power facilities and body structures, and will make more in vehicle functions possible.

For example, with the support of this system, the car doors can be exempted from the obligation of supporting complex cables, and the rear seat display screen does not need to be connected to the car operation interface. The movable positions such as the front seat or headrest can also be moved more flexibly. In addition, when towing services are required, cars equipped with wireless power do not need to rely on cables with signal plugs to connect to the trailer.

Possible challenges

There are some unavoidable challenges in using car mounted wireless power supplies. For example, it is necessary for car manufacturers to modify some components and equipment of their cars to make them suitable for wireless power systems, and this process may take several years.

Before wireless power is fully promoted, car manufacturers may first try independent subsystems such as parking assist systems that are more suitable for wireless power connection.