Audi Wireless Charging
Audi is still at least a year away from bringing a fully electric model to market, and like every automaker pursuing EVs, charging is a major component.
To that end, Audi – like Nissan, GM and others – is patterning with WiTricity Corporation from Boston, which manufacturers a coil-based inductive charging system that utilizes one coil installed in the ground and tapping into the grid, with another coil mounted underneath the vehicle. Alternating current in the embedded coil creates an alternating magnetic field that flows through the air and sends the voltage to the car-mounted coil. It can be mounted anywhere and according to Audi isn't just safe, but the system isn't affected by rain, snow or ice.
ETA: Two to three years.