Power transmission apparatus, power reception apparatus, method for controlling wireless power transmission system, and storage medium

Abstract

A wireless power transmission system wirelessly transmits power from a power transmission apparatus to a power reception apparatus. The system performs detection processing using a first detection method for detecting an object different from the power reception apparatus. The system determines whether a predetermined condition related to a state of at least either one of the power transmission apparatus and the power reception apparatus is satisfied. Then, the system performs object detection processing using a second detection method, different from the first detection method, according to a result of the determination regarding whether the predetermined condition is satisfied.

What is claimed is: 
     
         1 . A power transmission apparatus comprising:
 a power transmission unit configured to wirelessly transmit power to a power reception apparatus;   a first detection unit configured to perform detection processing using a first detection method for detecting an object different from the power reception apparatus based on a power loss related to a power transmission by the power transmission unit;   a determination unit configured to determine whether a predetermined condition related to a state of at least either one of the power reception apparatus and the power transmission apparatus is satisfied; and   a second detection unit configured to perform detection processing using a second detection method for detecting an object different from the power reception apparatus based on at least either one of a voltage attenuation state and a current attenuation state related to the power transmission by the power transmission unit, according to the determination result by the determination unit.