Abstract: Methods, systems, and devices for transferring energy and communications signals via inductive coupling to an on-board coil of an electric vehicle. As an example, a charging apparatus may include a plurality of power transfer coils; and a controller, configured to: detect a presence of the vehicle in a proximity of the charging apparatus; identify a power transfer coil from the plurality of power transfer coils to activate based on a position of the vehicle relative to the charging apparatus: and activate the identified power transfer coil.

Abstract: Measures, including methods and apparatuses, for use in operating a wireless electromagnetic induction charger. Excitation of a primary charging coil of the wireless charger is caused to generate an electromagnetic field for wireless charging. The generated electromagnetic field induces a first voltage across a first detection coil and a second voltage across a second detection coil. A disparity between the first and second voltages is monitored. The disparity is caused by the presence of an object in the vicinity of the first or second detection coils. In response to the monitoring indicating a disparity, the excitation is caused to cease.