Method for automatically charging by utilizing vehicle identification number (VIN)

Abstract

The invention relates to a method for automatically charging by utilizing a vehicle identification number (VIN). The method comprises the following steps: detecting a connection state between a charging gun of a charging machine and a charging interface of a to-be-charged vehicle; providing a low-voltage auxiliary power supply for a BMS (battery management system) by the charging machine when the connection state is normal; transmitting a handshake identification message to the BMS by the charging machine and retransmitting a reply identification message to the charging machine by the BMS according to a communication protocol between the charging machine and the BMS, wherein the reply identification message is written into the VIN corresponding to the vehicle in advance; analyzing the VIN when the reply identification message is received by the charging machine in a preset period of time, and controlling to cut off the low-voltage auxiliary power supply; and contrasting the analyzed VIN with a pre-recorded VIN database, and controlling the charging machine to charge or not charge a battery of the vehicle. The method disclosed by the invention is used for solving the problems in the prior art such as complicated charging process, low portability, low reliability and low safety, automatic charging is realized, the charging convenience, reliability and safety are enhanced, and the user charging experience is improved.

Description

technical field [0001] The invention belongs to the technical field of electric vehicle charging, and in particular relates to an automatic charging method using a vehicle identification code. Background technique [0002] With the development and application of new energy sources, electric vehicles are booming. In the prior art, there are mainly two charging methods for electric vehicles: one is to start charging by swiping the card on the charging pile. Confirm that if the identity information is correct and the balance of the card number is sufficient, the electric vehicle will be charged, so that the user needs to operate before each start of charging, which is inconvenient to use and will not be able to complete charging when the user forgets to bring the card or the card is lost, or In the case of taking the wrong card, it is possible to charge the electric car by mistake, which is unreliable and low in safety; the other is to charge by scanning the code, which requir...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention to provide a method for automatic charging using a vehicle identification code is to solve the problems of cumbersome charging process, poor convenience, low reliability and low safety in the prior art for electric vehicles, improve the automation of charging, and enhance The convenience of charging improves the reliability and safety of charging, thereby enhancing the user's charging experience

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