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

Abstract

The invention relates to an automatic group optimization system for power battery boxes in EV battery swap stations and an operating method thereof. The system comprises a power battery information real-time processing module, a grouping strategy library configuration module, a battery group information database, and a power battery box group auto-optimization scheduling module, wherein the power battery information real-time processing module is used for acquiring information of a battery box swapped from an EV in real time and transmitting, analyzing and storing the acquired information, the grouping strategy library configuration module is used for providing the power battery box group auto-optimization scheduling module with a grouping strategy configuration entry, the battery group information database is used for receiving query of the power battery box group auto-optimization scheduling module and changes to the power battery group information, and the power battery box group auto-optimization scheduling module is used for receiving a swap command, acquiring a grouping strategy and a calculation priority, and changing existing group information that dissatisfies the grouping strategy according to the demand of the grouping strategy. The system has the advantages that the battery box grouping strategies are reasonably configured, the group information of battery boxes is dynamically adjusted, the problem that a whole battery group stops due to changes of individual performances is solved, and power batteries are more available.

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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