[Understanding the original industry of Che Huang] Entering the charging era, charging piles are no longer a problem, but how to charge faster and more conveniently is still the most basic demand of electric vehicle users.
According to foreign media reports, researchers at Cornell University are developing technologies that can charge electric vehicles while driving. Simply put, the charging metal plate is embedded in the expressway, and the car can be charged when driving on it.
Imagine a scene when the vehicle is driving on expressway, but the battery is low. Drivers only need to change lanes and get close to the special charging board embedded in the road, so they can charge directly. It can be said that it is a very ideal state. The service system identifies the electric vehicle entering the charging lane and charges the owner at any time.
The above scenario is the research focus of Khurram Affri, an associate professor of electrical and computer engineering at Cornell University for seven years.
This technology can not only save drivers' time, but also improve warehouse productivity, paving the way for more sustainable transportation.
In this system, Affri Di's team designed two grounded insulated metal plates, which were connected to the power line through a matching network and a high-frequency inverter, thus generating an oscillating electric field. The magnetic field can attract and repel charges on a pair of matching metal plates installed on the bottom of the vehicle. The system can drive high-frequency current through the rectifier vehicle circuit. Subsequently, the rectified current can charge the battery.
A recent study at the University of California, Davis shows that one fifth of electric car owners switch to gasoline cars because they can't stand the trouble of finding a charging station. In addition, according to JD Power's data, consumers' anxiety about cruising range is the main obstacle to selling electric vehicles.
At present, it seems that this technology is too idealistic, and whether it can be mass-produced and applied to life is still unknown. Although the current wireless charging can solve the cruising range problem of electric vehicles to a certain extent, Affri Di believes that it will take 5 to 10 years for this technology to be realized on the main roads in the United States.
"Wireless charging may sound crazy at first. But if we really have this technology, it will be very meaningful. " Afridi said.