Inductive power transfer (IPT) technology has emerged as a promising wireless charging solution. The roadway pavement materials may lead to additional power losses under high-frequency magnetic fields. This digest presents an experimental investigation into the power loss of different materials (asphalt and cement concrete) under varying magnetic flux intensity B and frequency f. Solenoid coils are employed to generate a uniformly distributed magnetic field up to 5.36 mT, and test frequency f of 80kHz, 85kHz, and 90kHz are chosen following the SAE-2954 standard. Experimental results reveal an exponential increase in power loss in pavement materials as B increases, with cement concrete demonstrating higher power loss compared to asphalt. For further analysis, an IPT system is established to compare the impact of different pavement materials.
