Wireless charging method, vehicle-mounted battery management system and electric vehicle

Abstract

The invention discloses a wireless charging method. The wireless charging method comprises the following steps that registering and connecting of a wireless communication channel is carried out between a vehicle-mounted battery management system and a wireless charging ground end; after the registration and connection of the wireless communication channel are completed, charging handshaking, charging parameter matching and charging process management are carried out between the wireless communication channel and the wireless charging ground end; and according to the matched charging parameters, a high-frequency alternating current output by a receiving coil is rectified, and a direct current is output to charge a battery. Wireless communication is directly carried out between the vehicle-mounted battery management system and the wireless charging ground end, the wireless charging process is controlled, a communication link between a wireless charging vehicle-mounted end and the vehicle-mounted battery management system is omitted, a primary communication link is reduced, and the real-time performance and reliability of wireless charging are improved. The invention further disclosesthe vehicle-mounted battery management system, an electric vehicle, a wireless charging system and a computer readable storage medium, and the vehicle-mounted battery management system, the electricvehicle, the wireless charging system and the computer readable storage medium have the technical effects.

Description

Technical field [0001] The present invention relates to the field of wireless charging, in particular to a method of wireless charging; and also to a vehicle-mounted battery management system, an electric vehicle, a wireless charging system and a computer-readable storage medium. Background technique [0002] With the country's vigorous promotion of the development of new energy, the application and development of electric vehicles are changing with each passing day. The application and development of wireless charging methods are gradually being valued by countries and manufacturers. At present, the wired charging piles on the market have occupied a certain market, and the on-board battery management system is basically designed in accordance with the traditional wired charging standards. For the wireless charging system, the wireless charging vehicle terminal needs to add a receiving coil, a power receiving controller, a vehicle communication control unit, and multiple communi...

AI Technical Summary

Problems solved by technology

At the same time, because the wireless charging process requires the participation of the wireless charging ground terminal, the wireless charging vehicle terminal and the vehicle battery management system to complete the information interaction, the real-time performance of wireless charging communication is relatively poor.

When the on-board battery management system fails, due to poor real-time performance, it takes a long time for the wireless charging to stop operation, resulting in a long fault response time, and then because the communication between the wireless charging ground terminal and the on-board battery management system cannot be realized in time. Cause energy accumulation in the receiving circuit and damage the charging circuit

Images