Mitigating False Detection of Foreign Objects in Wireless Power Systems

摘要

Methods and systems are provided for mitigating false detection of a foreign or living objects positioned near a wireless power system configured to transmit power to a load of a vehicle. Methods and systems can monitor a foreign or living object detection (FOD or LOD) signal of a FOD or LOD system, the FOD or LOD system coupled to the wireless power system. The methods and systems can receive a first sensor signal from a first sensor and monitor the first sensor signal from the first sensor. Methods and systems can decrease or turn off power transmission, if the first displacement of the FOD signal magnitude crosses the FOD threshold and if the characteristic of the first sensor signal is a normal value throughout time tstart±tolerance, from a wireless power transmitter of the wireless power system.