Automatic group optimization system for power battery boxes in EV battery swap stations and operating method thereof

Abstract

The present invention relates to an automatic power battery pack grouping optimization system for an electric vehicle battery swap station and a working method of such a system. The system comprises a power battery information real-time processing module for acquiring information of battery packs removed from an electric vehicle in real time, and transmitting, parsing and storing the acquired information, a grouping strategy library configuration module for providing a grouping strategy configuration entry to a power battery pack grouping automatic-optimization scheduling module, a battery grouping information database for receiving a query from the power battery pack grouping automatic-optimization scheduling module and altering grouping information of power batteries, and the power battery pack grouping automatic-optimization scheduling module for receiving a battery swapping command, obtaining a grouping strategy and calculated priorities, and altering the existing grouping information not satisfying the grouping strategy according to the requirements of the grouping strategy. The automatic power battery pack grouping optimization system for the electric vehicle battery swap station dynamically adjusts the grouping information of battery packs by reasonably configuring the battery pack grouping strategy, and thus solves the problem of shutdown of the whole group of batteries due to the change of individual performance and increases the utilization rate of power batteries.

Description

technical field [0001] The invention relates to an automatic group selection system and working method for power battery boxes in an electric vehicle replacement station. Specifically, based on the collected real-time battery data, according to a preset group selection strategy, when the battery is replaced by a vehicle in an electric vehicle replacement station, Automatic selection and matching of battery boxes. Background technique [0002] In order to ensure the power of the electric vehicle and the convenience in the operation of battery replacement, the power of the electric vehicle is currently equipped with multiple battery boxes. The power battery boxes participating in the matching group provide external power in series. In order to ensure the service life of the power battery, it is necessary to ensure that the balance of the power batteries in each power battery box participating in the matching group is consistent. [0003] In the existing battery replacement pr...

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Problems solved by technology

[0008] XJ Group Co., Ltd. proposed a fully automatic battery swap process control method for charging and swapping stations (Chinese patent application number: 201210141795.9). This document proposes a control method for the entire process of charging and swapping stations. The automatic recommendation rules for battery packs required for battery replacement are based on the selection of battery packs on the premise that the battery boxes are fixed in groups in advance, but it is not proposed that the battery boxes in the whole station should be dynamically grouped or adjusted according to the principle of optimal selection, and it cannot be guaranteed that the battery packs will be assembled in advance. The performance balance of the battery boxes in the group does not solve the problem that the performance of the single battery box is degraded, and when the balance of the batteries in other boxes is inconsistent, the entire battery box needs to be shut down for maintenance, which is not conducive to the circulation of batteries

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