Electric vehicle, charging pile and wireless communication channel selection method

The invention relates to an electric vehicle, a charging pile and a wireless communication channel selection method. The electric vehicle comprises a congestion degree detection module which is used for detecting the congestion degree of each supported wireless channel, a switching information sending module used for modulating the CP signal of the charging pile end, sending the code correspondingto the channel K with the lowest congestion degree to the charging pile end, enabling the charging pile end to switch the wireless channel of the charging pile end to the channel K after receiving the code corresponding to the channel K, and sending a channel switching instruction to the wireless communication module when wireless channel switching is needed; a vehicle end wireless communicationmodule is used for switching the wireless channel to the channel K after receiving the channel switching instruction and communicating with the charging pile end on the channel K. A high-quality wireless communication link can