How Wireless Charging Works On The BMW i8!

How Wireless Charging WorksHow Wireless Charging Works

The BMW i8, first introduced as the BMW Concept Vision Efficient Dynamics, is a plug-in hybrid sports car developed by BMW. The 2015 model year BMW i8 has a 7.1 kWh lithium-ion battery pack that delivers an all-electric range of 23 miles under the New European Driving Cycle (NEDC). Under the United States Environmental Protection Agency (EPA) cycle, the range in EV mode is 15 miles with a small amount of gasoline consumption.

How Wireless Charging Works On The BMW i8!

But how does wireless charging work? How does the BMW i8 Formula E pace car wirelessly charge? Wireless charging works by taking advantage of the fact that if you put a current through a wire coil, then that coil will create a magnetic field. If you then place another coil set directly over that coil, the magnetic field created by the first coil will induce a current in the second coil. Typically this will be done with an alternating current, so the magnetic field of the first coil will switch back and forth, inducing an alternating current in the second coil. With no physical connection, you’re able to supply a current to charge a device.

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