Wireless charging self-positioning alignment system and method for electric vehicle

Abstract

The embodiment of the invention discloses a wireless charging self-positioning alignment system and method for an electric vehicle. The system includes a vehicle-mounted positioning micro label arranged on the electric vehicle, a plurality of parking space positioning base stations arranged at the preset position of the parking space and used for carrying out ranging communication with the vehicle-mounted positioning micro label; a positioning processor used for determining the actual coordinates of the vehicle-mounted positioning micro label in a preset coordinate system according to the ranging information of each parking space positioning base station and the vehicle-mounted positioning micro label and calculating the difference between the actual coordinates of the vehicle-mounted positioning micro label and the target coordinate of the vehicle-mounted positioning micro label when the receiving coil of the electric vehicle and the transmitting coil of the parking space are aligned.The alignment condition of the vehicle can be obtained through the difference between the target coordinate and the actual coordinate of the vehicle-mounted positioning micro label. The system effectively solves the problem of the alignment of the coil when the wireless charging vehicle is parked. The system not only can reduce the cost, but also can meet the application logic of positioning whenthe vehicle is parked.

Description

technical field [0001] The invention relates to the technical field of wireless charging, in particular to a wireless charging self-positioning alignment system and method for electric vehicles. Background technique [0002] After Europe and other countries have successively proposed plans to stop the sale of fuel vehicles, the Ministry of Industry and Information Technology of China has started research to formulate a timetable for banning the sale of fuel vehicles. The electrification and intelligence of new energy vehicles has become the direction and trend of future development. [0003] For the application of electric vehicle charging methods, wired AC and DC charging and wireless charging are the main ones. Compared with wired charging, wireless charging has more obvious advantages in convenience and safety in use. For the static wireless charging system, the alignment of the receiving and sending coils affects the coupling characteristics between the coils, which in t...

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Problems solved by technology

[0006] The purpose of the present invention is to provide a wireless charging self-positioning alignment system and method for electric vehicles, which can effectively solve the problem of coil alignment when the wireless charging vehicle is parked, and can not only reduce the cost, but also meet the positioning requirements of the coil when the vehicle is parked. application logic

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