A modified vehicle loaned by Volkswagen of America to the US Department of Energy’s Oak Ridge National Laboratory (ORNL). Porsche Taycan, It broke a record by reaching the highest wireless charging speed in a passenger vehicle.
Researchers have developed a new device integrated into the underbody of the car. multiphase wireless charging system using the vehicle 270 kW They managed to transfer power at speed. This speed is Taycan’s wired Same as DC charging speed corresponds to the value.
The power transmission system invented by ORNL allows for higher power density in the smallest possible coil, whose diameter is only 19 inches slightly too light electromagnetic coupling coils uses. The government-run lab said the process is similar to systems found in small devices such as smartphones, but the key difference is that the multiphase coils in the Taycan have rotating magnetic fields produced by the coil’s phase windings to boost power to unprecedented levels.
Ömer Onar, leader of the Vehicle Power Electronics group from ORNL and the principal investigator of the Porsche experiment, says the following about the system they developed: “The receiver coil designed for the Porsche Taycan research vehicle, It can reach 8 to 10 times higher power density compared to existing systems. This is also per kilowatt weight It is the lightest charging system in the world.“
95% charging efficiency achieved
Additionally, the distance between the sending unit on the ground and the receiver in the vehicle 12 cm is and the system %95 It is stated that it has an impressive efficiency. Therefore the charging efficiency It’s not much different from a wired charge.
This isn’t ORNL’s first record with wireless charging technology. In 2016, the team achieved a wireless transfer rate of 20 kW in a Toyota RAV4 equipped with an additional 10 kilowatt-hour battery. Last year, Hyundai recorded a charging speed of 120 kW with Kona. The research laboratory announced that they plan to continue working with Volkswagen to improve the system, make it smaller and more cost-effective, and move into mass production.
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Source link: https://www.donanimhaber.com/porsche-taycan-ile-kablosuz-sarj-rekoru-kirildi-270-kw-sarj-hizi–180254