This paper presents a coil alignment system for wireless power transfer (WPT) in electric vehicles (EVs). A magnetic field map is acquired by means of an array of auxiliary pickup coils placed above the receiving coil. The acquired map is pixeled to enable comparison with a reference magnetic field map corresponding to perfect alignment. A template-matching approach based on normalized cross-correlation (NCC) is used to estimate the position of the vehicle within the reference field map.
Image-Based Magnetic Map Processing for Coil Alignment in Automotive Wireless Power Transfer
Boumerdassi, Wassim
;Cruciani, Silvano;Campi, Tommaso;De Santis, Valerio;Feliziani, Mauro
2026-01-01
Abstract
This paper presents a coil alignment system for wireless power transfer (WPT) in electric vehicles (EVs). A magnetic field map is acquired by means of an array of auxiliary pickup coils placed above the receiving coil. The acquired map is pixeled to enable comparison with a reference magnetic field map corresponding to perfect alignment. A template-matching approach based on normalized cross-correlation (NCC) is used to estimate the position of the vehicle within the reference field map.File in questo prodotto:
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