Posts Tagged: Wireless Charging

SAE announces agreement on wireless power transfer frequency and power classes

The SAE task force working on a standard for Wireless Power Transfer (WPT) has reached agreement on two important factors. These will be incorporated into a Technical Information Report, which is scheduled to be complete in early 2014. The TIR will be followed by publication of the official SAE J2954 Standard. “A common frequency of… Read more »

North Carolina research team demonstrates improved wireless power transmission

Researchers from North Carolina State University have developed a new technology for wireless power transmission that could bring the goal of dynamic wireless EV charging a step closer to reality. “We’ve made changes to both the receiver and the transmitter in order to make wireless energy transfer safer and more efficient,” says Dr. Srdjan Lukic,… Read more »

Resonating with the OEMs: WiTricity’s wireless energy transfer technology

WiTricity hopes to leverage a wireless energy transfer breakthrough out of MIT into a commercial solution with far-reaching potential Inside a standard electrical transformer are two coils that transfer power wirelessly. They utilize the principle of magnetic induction, sending energy from a primary coil to a secondary coil without a direct electrical connection.  Inductive chargers,… Read more »

South Korean electric buses use dynamic wireless charging

The city of Gumi in South Korea has deployed two electric buses that use dynamic wireless charging. Dynamic wireless is a particularly exciting technology, as it has the potential to remove several of the objections associated with EVs. In a public transport context, it eliminates the need for unsightly overhead wires. Further down the road,… Read more »

Korean researchers develop 180 kW wireless charging technology

The Korea Advanced Institute of Science and Technology (KAIST) and the Korea Railroad Research Institute (KRRI) have developed a wireless power transfer technology that can supply 180 kW of power at 60 kHz. KAIST first tested its On-line Electric Vehicle (OLEV) in 2009, and has made substantial improvements in size and charging power since then…. Read more »

What’s up with wireless EV charging

Wireless charging is one of the hottest topics in the EV world these days. Several companies have systems on the path to commercial availability. Evatran has plans to sell aftermarket systems that will work with popular plug-in models such as the LEAF and the Volt. Qualcomm is using its London trial as a test bed… Read more »