Wireless charging foreign matter detecting system based on optical fiber sensing network and detecting method

Abstract

The invention provides a wireless charging foreign matter detecting system based on an optical fiber sensing network and a detecting method. The wireless charging foreign matter detecting system comprises an upper cover plate, a optical fiber sensing network panel, a transmitting coil, a magnetic conductive unit, a first temperature sensor, a second temperature sensor, a lower cover plate and an optical fiber sensing network panel control circuit. The upper cover plate is arranged above the optical fiber sensing network panel which is positioned above the transmitting coil, the transmitting coil is placed above the magnetic conductive unit, and the magnetic conductive unit is installed above the lower cover plate; the first temperature sensor makes contact with an optical fiber starting point of the optical fiber sensing network panel; the second temperature sensor makes contact with the upper surface of the lower cover plate. According to the wireless charging foreign matter detectingsystem based on the optical fiber sensing network and the detecting method, through temperature and stain detection of the transmitting coil to find out a system of the foreign matter, and detectionmethod, the problem that metal foreign matter causes high temperature on the wireless charging transmitting coil, and a potential safety hazard can be caused, and potential health effects can be caused due to the fact that living body foreign matter enters a wireless charging working area.

Description

technical field [0001] The invention relates to the technical field of electric vehicle wireless charging, in particular to a wireless charging foreign object detection system and detection method based on an optical fiber sensor network. Background technique [0002] With the shortage of fossil energy supply and the aggravation of environmental pollution, the development of new energy vehicles has become a global consensus; wireless charging technology has become a very advantageous charging method because of its simplicity, speed, and safety; Due to the magnetic field coupling, the electric energy is transmitted to the power battery of the electric vehicle, which avoids contact with the high-power charging socket, and can realize charging at any time, even dynamic charging, which greatly improves the user experience; [0003] However, there is a large air gap between the ground transmitting coil of the wireless charging system and the receiving coil installed at the bottom...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the above technical problems, the present invention provides a wireless charging foreign object detection system and detection method based on an optical fiber sensor network. By detecting the temperature and strain of the transmitting coil, the system and detection method for finding foreign objects solve the problem of wireless charging transmitting coils. There are problems of high temperature caused by metal foreign objects on the surface, which may cause potential safety hazards, and potential health effects that may be caused by living objects and foreign objects entering the wireless charging work area, which improves the safety of electric vehicle wireless charging work

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