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KR-20260067912-A - SYSTEM AND METHOD FOR MONITORING BATTERY

KR20260067912AKR 20260067912 AKR20260067912 AKR 20260067912AKR-20260067912-A

Abstract

The present invention relates to a battery monitoring system and a method thereof, and more specifically, to a system and a method thereof for determining the rack placement of modules using battery monitoring results. A battery monitoring system according to the present invention includes a charge and discharge amount inquiry unit that queries charge and discharge amount information of a module, a module replacement time prediction unit that uses the charge and discharge amount information to calculate SOH and predict the replacement time of the module, and a rack determination unit that determines the rack on which the module will be placed by considering the replacement time of the module.

Inventors

  • 김민석

Assignees

  • 삼성에스디아이 주식회사

Dates

Publication Date
20260513
Application Date
20241106

Claims (20)

  1. A charge and discharge amount inquiry unit that queries charge and discharge amount information of a module; A module replacement time prediction unit that uses the above charge and discharge amount information to reflect it in the SOH calculation and predicts the module replacement time; and A rack determination unit that determines the rack on which the module will be placed, taking into account the replacement timing of the above module. A battery monitoring system including
  2. In paragraph 1, The above charge and discharge amount inquiry unit queries charge and discharge amount information stored in the BMS memory within the module. Battery monitoring system.
  3. In paragraph 1, The above module replacement timing prediction unit uses charge and discharge amount information stored in the BMS memory within the module to reflect it in the calculation of the battery's actual SOH. Battery monitoring system.
  4. In paragraph 1, The above module replacement timing prediction unit stores and manages information regarding the usage history of the module. Battery monitoring system.
  5. In paragraph 1, The above rack determination unit determines whether there are replaceable in-use modules by considering the prediction results regarding the module replacement timing. Battery monitoring system.
  6. In paragraph 5, The above rack determination unit determines the rack to which the module is to be applied among a plurality of candidate racks by considering the SOH information of the above replaceable existing module. Battery monitoring system.
  7. In paragraph 1, The above rack determination unit collects and monitors information on candidate racks and monitors the specifications of modules currently in use included in each rack. Battery monitoring system.
  8. In paragraph 1, The above rack determination unit compares the specifications of modules currently in use, including SOH information, and generates proposal information regarding the trade of modules between multiple racks. Battery monitoring system.
  9. In a battery monitoring method performed by a battery monitoring system, (a) A step of querying the SOH information of the battery module in use; (b) a step of querying and analyzing rack information; and (c) A step of determining the rack to which the battery module to be applied by comprehensively considering the SOH information of the battery module to be used and the rack information. A battery monitoring method including
  10. In Paragraph 9, The above step (a) calculates the SOH information using the charge and discharge amount information of the battery module in use stored in the BMS memory within the module. Battery monitoring method.
  11. In Paragraph 9, The above step (b) involves collecting and monitoring information on candidate racks to which the above-mentioned battery module is to be applied. Battery monitoring method.
  12. In Paragraph 9, Step (c) above involves determining the amount of cell degradation and the timing for cell replacement by considering the result reflected in the actual SOH calculation of the battery using charge and discharge amount information stored in the BMS memory within the module. Battery monitoring method.
  13. In Paragraph 12, The above step (c) determines whether there are any replaceable modules in use by considering the prediction results regarding the timing of module replacement. Battery monitoring method.
  14. In Paragraph 13, Step (c) above involves determining the rack to which the module will be applied among a plurality of candidate racks by considering the SOH information of the battery module used above. Battery monitoring method.
  15. In Paragraph 14, The above step (c) is to generate proposal information regarding the trade of multiple rack-to-rack modules. Battery monitoring method.
  16. An input interface device that receives charge and discharge amount information stored in memory within the module BMS; A memory storing a program that uses the above charge and discharge amount information to reflect it in real-time SOH calculation and determines the module replacement time; and It includes a processor that executes the above program, The above processor determines the rack to which the module will be applied using the result of determining the module replacement timing. Battery monitoring device.
  17. In Paragraph 16, The above processor recognizes cell degradation through module-unit charge and discharge amounts and predicts the replacement time of the module. Battery monitoring device.
  18. In Paragraph 17, The above processor determines whether there are replaceable modules in use by considering the result of predicting the module replacement time, and determines the rack to which the module will be applied among a plurality of candidate racks by considering the SOH information of the module. Battery monitoring device.
  19. In Paragraph 16, The above processor collects and monitors information on candidate racks and monitors the specifications of modules currently in use included in each rack. Battery monitoring device.
  20. In Paragraph 19, The above processor compares the specifications of modules currently in use that include SOH information, generates proposal information regarding the trade of modules between multiple racks, and transmits the proposal information to an administrator. Battery monitoring device.

Description

Battery Monitoring System and Method The present invention relates to a battery monitoring system and a method thereof, and more specifically, to a system and a method thereof for determining the rack placement of modules using battery monitoring results. According to conventional technology, when charging and discharging an ESS, the module BMS senses the voltage and temperature of the cell and transmits them to the rack. Based on the received information, the rack performs SOC, SOH, current sensing and integration, implements various alarm and protection operations, collects cell information during charging and discharging, and transmits various information to the system via CAN communication. According to conventional technology, a rack BMS calculates charge and discharge amounts based on information (cell information) transmitted from a module to an upper rack and stores this information in the rack BMS; however, there is a limitation in that it does not consider efficiency in terms of usage when applying an existing module to a different rack. The following drawings attached to this specification illustrate preferred embodiments of the present invention and serve to further enhance understanding of the technical concept of the present invention together with the detailed description of the invention provided below; therefore, the present invention should not be interpreted as being limited only to the matters described in such drawings. Figure 1 schematically illustrates a secondary battery electrode assembly. Figure 2 schematically shows the configuration of a pouch-type secondary battery. Figure 3 shows the schematic external configuration of a prismatic secondary battery. Figure 4 is a cross-sectional view of a cylindrical secondary battery. Figure 5 illustrates the calculation and storage of charge and discharge amounts of a rack BMS. FIG. 6 illustrates a battery monitoring system according to an embodiment of the present invention. FIG. 7 illustrates a battery monitoring method according to an embodiment of the present invention. FIG. 8 is a block diagram showing a computer system for implementing a method according to an embodiment of the present invention. FIG. 9 is an exemplary diagram of a secondary battery module with a secondary battery arranged according to the present invention. FIG. 10 is an example of a secondary battery pack including the secondary battery module of FIG. 9. FIG. 11 is a conceptual diagram of a vehicle including the secondary battery pack of FIG. 10. Preferred embodiments of the present invention will be described in detail below with reference to the attached drawings. Prior to this, terms and words used in this specification and claims should not be interpreted as being limited to their ordinary or dictionary meanings. Instead, based on the principle that the inventor can appropriately define the concepts of terms to best describe their invention, they should be interpreted in a meaning and concept consistent with the technical spirit of the present invention. Therefore, the embodiments described in this specification and the configurations illustrated in the drawings are merely some of the most preferred embodiments of the present invention and do not represent all of the technical spirit of the present invention. It should be understood that various equivalents and modifications capable of replacing them may exist at the time of filing this application. Additionally, as used herein, “comprise, include” and/or “comprising, including” specify the presence of the mentioned features, numbers, steps, actions, parts, elements, and/or groups thereof, and do not exclude the presence or addition of one or more other features, numbers, actions, parts, elements, and/or groups. Additionally, to aid in understanding the invention, the attached drawings are not drawn to actual scale, and the dimensions of some components may be exaggerated. Furthermore, the same reference numerals may be assigned to identical components in different embodiments. The statement that two subjects of comparison are 'identical' means that they are 'substantially identical.' Therefore, substantial identity may include deviations considered low in the industry, for example, deviations within 5%. Additionally, the statement that a parameter is uniform in a given area may mean that it is uniform from an average perspective. Although terms such as "first," "second," etc., are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are used merely to distinguish one component from another, and unless specifically stated otherwise, the first component may also be the second component. Throughout the specification, unless specifically stated otherwise, each component may be singular or plural. The fact that any configuration is placed on the "upper (or lower)" of a component or on the "upper (or lower)" of a component may mean not only that a