OnLine Electric Vehicles (OLEV)
Wireless technology can now deliver electric power to moving
vehicles. In next-generation electric cars, pick-up coil sets under the
vehicle floor receive power remotely via an electromagnetic field
broadcast from cables installed under the road. The current also charges
an onboard battery used to power the vehicle when it is out of range.
As electricity is supplied externally, these vehicles need only a fifth
of the battery capacity of a standard electric car, and can achieve
transmission efficiencies of over 80%. Online electric vehicles are
currently undergoing road tests in Seoul, South Korea.
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