March 4, 2014 1:00 pm JST

Toshiba develops fast wireless charging for electric cars

TOKYO -- Toshiba has recently developed a technology that can quickly charge electric cars without cables.

The new wireless charging technology can transmit power at 90% of peak efficiency, even when the charger and the vehicle are 17cm apart. The system allows a car's battery to be recharged, even if the car is out of the proper parking position by 15-25cm. The technology is expected to halve the time required to charge small cars, sedans, sport utility vehicles and certain types of wagons, and make it easier for drivers to park for charging.

     The new technology, which uses coils to transmit power, will be presented at a conference of the Institute of Electrical Engineers of Japan in Matsuyama, Ehime Prefecture on March 18-20. The Japanese electronics giant is expected to start testing the system in fiscal 2014, which begins in April.

     Discussions on establishing an international standard for wireless power supply for electric cars is underway. A U.S. industry group is working on a plan to set a power transmission distance of 17cm as part of that standard.

(Nikkei)

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