Foreign object detection technology in wireless charging system for electric vehicles

With the development of the electric vehicle wireless charging field, the landing of the technology is accompanied by several obstacles, including foreign objects in the charging area has become a major problem affecting charging efficiency and safety. Therefore, this paper studies the foreign object detection technology in the wireless charging system, first summarizes the types of foreign objects that mainly affect the system, then analyzes the principles and advantages and disadvantages of various foreign object detection technologies for different types of foreign objects, and finally points out the current problems and future development direction of the current foreign object detection technology, which provides a reference for the subsequent development of foreign object detection technology.