One of the vehicles causing a storm at this year’s Geneva Motor Show is the Rolls Royce Phantom Experimental Electric Vehicle – and now we can reveal more details about its induction charging technology.
The HaloIPT wireless charging system makes use of an inductive power transfer to transfer over gaps up to 15.75inches.
The IPT systems take electric power from the grid and energise the primary coil with a current in the range 5-125A. The coil is inductive and power is transferred by turning the pick-up coil to the operating frequency of the primary coil with a series or parallel capacitor.
There are three hardware components within the system: a high frequency generator or power supply; a magnetic coupling system; and a pick-up controller/compensation.
Included in the pick-up controller are tuning capacitors; a rectifier; transistors for power control; capacitors to smooth output voltage; and the control unit, which includes sensors for voltage and current.
Dr Anthony Thomson, the CEO of HaloIPT, commented that he is delighted the wireless charging technology is being used for the trial and industry feedback suggests it is the best charging solution for luxury electric vehicles.
