Measuring and billing system and electric energy measuring and billing method for wireless charging of electric vehicles

Abstract

The invention discloses a measuring and billing system and an electric energy measuring and billing method for wireless charging of electric vehicles. The system comprises an electric energy measuring device and a billing and charging system which are connected. The electric energy measuring device comprises a single-chip microcomputer control unit A and a wireless communication module A which are connected. The billing and charging system comprises a single-chip microcomputer control unit B and a wireless communication module B which are connected. The electric energy measuring device is connected with a transmission end which comprises a mains supply, a rectifier and filter circuit A and a resonance inverter which are connected successively. The billing and charging system is further connected with a receiving end which comprises a rectifier and filter circuit B, a DC / DC convertor and a battery which are connected successively. According to the method, charging output power is measured accurately, and the charging amount is calculated accurately; besides, a wireless deduction function is achieved through the wireless communication module, and current charging information and charging expenses are displayed through a liquid crystal display module, accordingly, problems of electric energy measuring and billing and charging during wireless charging of electric vehicles are solved.

Description

technical field [0001] The invention belongs to the technical field of wireless energy transmission for electric vehicles, and in particular relates to a metering and billing system for wireless charging of electric cars. Background technique [0002] In recent years, due to the dual pressure of energy crisis and environmental protection, pure electric vehicles have been identified as one of the main trends in future automotive development. However, the charging method and efficiency of electric vehicles are a big problem now. The wireless energy transmission method is an inevitable trend of future development because of its advantages of convenient charging, real-time safety and so on. [0003] Compared with the traditional charging method, the new electric vehicle wireless charging technology has the advantages of convenience, real-time performance and safety. Wireless charging technology has become increasingly mature, but the supporting electric energy metering technolo...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a metering and billing system for electric vehicle wireless charging, which solves the problem that electric energy metering and electric energy billing cannot be performed in the existing electric vehicle wireless charging process

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