Wireless charging for electric vehicles

One of the innovations that are considered innovative and revolutionary in the process of manufacturing a car that does not use gasoline or oil is electric cars.

Do not use petroleum-based raw materials, do not discharge toxic gas during operation, electric cars or trucks are considered the most breakthrough invention of 21st century car manufacturing technology. But after many prototypes or even electric cars have been launched to the market, the operating distance of the car is the biggest weakness of this environmentally friendly model.

For example, Tesla Motors' third-generation model can run 321km if fully charged or Chevy Bolt, the car is considered to have distance and the highest power efficiency in the market can only run. be 380km.'This figure is really impressive for electric cars but if you want to put it into practice, this number is still very modest. That's not to mention the charging time of the car usually lasts up to a few hours, instead of just a few minutes for cars using gasoline or oil , 'said Shanhui Fan, Professor of Electronic Engineering at Stanford University. and also the author of the project, said.

Wireless transmission technology is developed based on integrated magnetic interference techniques.

In the process of researching works related to wireless transmission, Fan and his colleagues think the team can help overcome the disadvantages of electric vehicles by building an integrated wireless charging system. on the car.

Wireless transmission technology is developed based on integrated magnetic interference techniques. This technique works similarly to power plants, which produce electricity based on the generation of currents by rotating coils between magnetic fields, helping electricity to pass through the wires and forming a oscillating magnetic field. This magnetic field causes electrons in the surrounding coils to vibrate, from which electricity is transmitted without wires.

More than 10 years ago, the group has successfully built wireless transmission technology at a distance of several meters into a stationary object. Later, when they wanted to apply the technology to the car's electrical parts, the team studied the technology to transfer electricity to a moving LED light bulb.

Cars or electric trucks are considered the most groundbreaking invention of 21st century vehicle manufacturing technology.

Initially, the team was able to transmit a 1-milliwatt current with this wireless technology.'Although it will need to transmit up to 10 kilowatts of current to help the vehicle work, the initial success will also help us understand the mechanism of the technology, thereby increasing capacity. The line is wirelessly transmitted , ' Fan said.

After announcing the project, the team is still working to improve the structure to increase the power flow that is transmitted wirelessly to the level that can help the car operate.

Although being researched to be able to apply on electric vehicles, Stanford scientists said it would not limit the application of the project in other areas.'When fully developed technology can create many applications in the health sector, manufacturing equipment used in heavy industries . and will step by step help the dream of automating machines closer to reality. " , Fan shared.