Electric automobile battery management system and management method

Abstract

The invention relates to a usage management system and management method of an electric automobile battery, in particular to a method for increasing use efficiency of the electric automobile battery and prolonging the service life of the electric automobile battery. The system comprises a server, a battery pack, an RFID (Radio Frequency Identification Device) label and a client, wherein the RFID label is mounted on the battery pack; the server is mounted at a management center; a server service system is mounted in the server; the client is mounted on each electrical changing station; the client is provided with a battery pack charging monitoring module, an electrical changing scheduling request module and an electrical changing execution driving module; and the server service system comprises a client monitoring module, a data management module and a scheduling executing module; and the system management method comprises the following steps of: 1) setting the RFID label, managing all battery packs in groups, and managing the battery packs in the groups according to grades; 2) when a battery of an automobile is changed, transmitting an electrical changing request by the client, calculating a final battery pack ID by a service scheduling module and returning the battery pack ID to the corresponding client; and 3) executing replacement by the client and updating battery pack information in the RFID label.

Description

technical field [0001] The invention relates to an electric vehicle battery usage management system and a management method thereof, in particular to a method for improving the usage efficiency and service life of the electric vehicle battery. Background technique [0002] During the "Twelfth Five-Year Plan" period, the development of new energy vehicles including electric vehicles has become the main theme of China's auto industry. But how to charge electric vehicles is a difficult problem that must be faced to make it "run further". At present, there are two main ways to charge electric vehicles: plug-in charging and replacement charging. "However, for the pioneers of my country's electric vehicles such as urban sanitation and buses, it is unrealistic to plug in charging piles to charge, because it takes time and these vehicles cannot afford to wait." The industry generally believes that solving the power supply problem of large electric vehicles , A better way is to buil...

AI Technical Summary

Problems solved by technology

[0004] Since providing high-performance batteries for electric vehicles requires a voltage of several hundred volts, it is usually necessary to connect individual battery cells in series to form a battery pack, and to provide power energy for electric vehicles after connecting multiple battery packs in series; At present, the replacement station generally adopts a simple scheduling strategy to replace the battery pack, resulting in a very high frequency of use of some battery packs, and a very low frequency of use of some battery packs. Unbalanced scheduling and replacement of battery packs will shorten the service life of the battery pack.

[0005] Since electric vehicles require multiple battery packs to provide power energy in series, if the performance differences of the battery packs are not considered, some battery packs have been completely discharged during the discharge process, while other battery packs still have enough energy to Continue to provide power to the car, however, it is impossible for the car to continue driving at this time, because this will over-discharge the weaker battery pack, which will lead to the destruction of the battery pack, and also reduce the efficiency of the battery pack

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