KR102035677B1 - System and method recognizing of battery module construction for identifier allocation - Google Patents

System and method recognizing of battery module construction for identifier allocation Download PDF

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Publication number
KR102035677B1
KR102035677B1 KR1020150180661A KR20150180661A KR102035677B1 KR 102035677 B1 KR102035677 B1 KR 102035677B1 KR 1020150180661 A KR1020150180661 A KR 1020150180661A KR 20150180661 A KR20150180661 A KR 20150180661A KR 102035677 B1 KR102035677 B1 KR 102035677B1
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KR
South Korea
Prior art keywords
battery
bms
pack
battery module
voltage
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KR1020150180661A
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Korean (ko)
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KR20170072474A (en
Inventor
윤승규
김현진
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주식회사 엘지화학
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Priority to KR1020150180661A priority Critical patent/KR102035677B1/en
Priority to PCT/KR2016/014542 priority patent/WO2017105046A1/en
Priority to US15/577,959 priority patent/US10794957B2/en
Priority to CN201680034750.8A priority patent/CN107710006B/en
Priority to EP16875988.4A priority patent/EP3287802B1/en
Priority to JP2017561864A priority patent/JP6568955B2/en
Publication of KR20170072474A publication Critical patent/KR20170072474A/en
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Publication of KR102035677B1 publication Critical patent/KR102035677B1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/0084—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring voltage only
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
    • G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
    • G01R19/16542—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies for batteries
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
    • G01R31/3842—Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • Y02E60/12—

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Secondary Cells (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The present invention relates to a system and method for recognizing a battery module configuration for ID allocation, and more particularly, to recognizing a battery module configuration for ID allocation for recognizing the number of battery modules connected in series in order to assign an ID to a BMS of each battery module. System and method.

Description

Battery Module Configuration Recognition System and Method for ID Assignment {SYSTEM AND METHOD RECOGNIZING OF BATTERY MODULE CONSTRUCTION FOR IDENTIFIER ALLOCATION}

The present invention relates to a system and method for recognizing a battery module configuration for ID allocation, and more particularly, to recognizing a battery module configuration for ID allocation for recognizing the number of battery modules connected in series in order to assign an ID to a BMS of each battery module. System and method.

In general, one or more battery modules having one or more battery cells are electrically connected to each other in series to form a battery pack.

The battery pack has a battery management system (BMS) for monitoring and controlling the state of the battery pack and the included battery modules.

In addition, each of the battery modules may also have a BMS that manages the included cells.

In this case, the BMS of the battery pack managing the entire battery pack is set as a master BMS, and the BMSs of the battery modules are set as slave BMSs.

Conventionally, when there are two or more battery modules having the same voltage and connected in series, the BMS of the battery pack cannot recognize the configuration of the battery module itself, so that the number of battery modules is directly input and the BMS corresponding to each number is provided. I had to develop and manage the software.

In addition, when IDs are assigned to BMSs of respective battery modules for battery pack control, it is cumbersome to assign IDs by directly inputting the number of battery modules.

As described above, when an ID is assigned to the BMS of the battery module, a problem arises in that the number of battery modules must be directly input and the respective BMS S / Ws corresponding to the number are stored.

KR 2001-0055891 A

The present invention provides a system and method for recognizing a battery module configuration for ID assignment that can solve the inconvenience of directly inputting the number of battery modules when an ID is assigned to a BMS of a battery module.

A battery module configuration recognition system for ID assignment according to an embodiment of the present invention is a battery module configuration recognition system for ID assignment of one or more battery modules including one or more battery cells connected in series. The battery pack is configured to include a BMS of a battery module for measuring the module voltage of the battery module, and the BMS of the battery pack configured by connecting one or more of the same battery modules in series is a measuring unit for measuring the pack voltage of the battery pack and the battery module. And a controller for recognizing the number of connected battery modules based on the module voltage measured by the BMS and the pack voltage measured by the measurement unit of the battery pack, and assigning an ID. It is configured to include a memory to store.

The controller may be configured to calculate the number of battery modules by dividing the pack voltage measured by the measuring unit of the battery pack by the module voltage measured by the BMS of the battery module and setting the BMS of the battery pack as a master BMS, It is configured to include an ID allocator for allocating IDs of BMSs of each battery module to slave BMSs according to the number of stored battery modules.

On the other hand, the ID assignment method using the configuration recognition of the battery module according to an embodiment of the present invention, in the battery module configuration recognition method for ID assignment of the battery module comprising one or more battery cells in series connection structure, the battery A battery module number recognition step of recognizing the number of one or more battery modules by measuring and calculating the voltage of the pack and the battery module, and slave to the BMS of each battery module according to the master ID of the battery pack and the number of the recognized battery modules. BMS ID assignment step of assigning ID.

The battery module number recognition step may include a battery pack voltage measurement step of measuring a pack voltage flowing through a battery pack, a battery module voltage measurement step of measuring one battery module voltage, and a calculation of a measured voltage of the battery pack and the battery module Comprising a measurement voltage operation for recognizing the number of times.

The measuring voltage calculating step calculates the number of battery modules by dividing the measured pack voltage of the battery pack by the module voltage of the measured battery module.

The BMS ID allocating step includes a master BMS setting step in which the BMS of the battery pack sets itself as a master BMS, and a slave that sequentially allocates BMSs of each battery module to IDs corresponding to slaves according to the number of the recognized battery modules. BMS ID assignment step.

The slave BMS ID assignment step may include: a first slave BMS ID assignment step of allocating an ID to a first slave BMS with k (k is a fixed constant); when the ID is assigned to the first slave BMS, the first slave BMS is sequentially assigned. (N + 1, n is an integer greater than or equal to 1) an ID allocation request signal transmitting step of transmitting an ID allocation request signal to a control unit so that an ID (k + n) is allocated to the slave BMS; And the control unit receiving the ID allocation request signal compares the number of the recognized battery modules with n + 1, which means the number of ID allocations of the (n + 1) slave BMSs that have received the ID allocation request. The slave BMS ID assignment check step of checking whether the ID is assigned according to the number of.

In the verifying slave BMS ID assignment step, when the number of the recognized battery modules is greater than n + 1, the slave BMS ID assignment step assigns (k + n) to the corresponding (n + 1) slave BMS as an ID.

The system and method for recognizing a battery module configuration for ID allocation according to an embodiment of the present invention may provide convenience for battery pack operation by recognizing the number of battery modules connected in series when ID assignment for a BMS of a battery module is performed. Can be.

1 is a block diagram of a battery module configuration recognition system for ID assignment according to an embodiment of the present invention.
2 is a flowchart illustrating a method for recognizing a battery module configuration for ID allocation according to an embodiment of the present invention.
3 is a flowchart illustrating a battery module number recognition step of a method for recognizing a battery module configuration for ID assignment according to an embodiment of the present invention.
4 is a flowchart illustrating a BMS ID assignment step of a method for recognizing a battery module configuration for ID assignment according to an embodiment of the present invention.
5 is a flowchart illustrating a slave BMS ID assignment step of a method for recognizing a battery module configuration for ID assignment according to an embodiment of the present invention.

Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings. However, the present invention is not limited or limited by the embodiments. Only embodiments are provided so that this disclosure will be thorough, and will fully convey the scope of the invention to those skilled in the art.

Terms including ordinal numbers such as first and second may be used to describe various components, but the components are not limited by the terms. The terms are used only for the purpose of identifying one component from another component. For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component. The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise.

The terms used in the present invention have been selected as widely used general terms as possible in consideration of the functions in the present invention, but this may vary according to the intention or precedent of the person skilled in the art, the emergence of new technologies and the like. In addition, in certain cases, there is also a term arbitrarily selected by the applicant, in which case the meaning will be described in detail in the description of the invention. Therefore, the terms used in the present invention should be defined based on the meanings of the terms and the contents throughout the present invention, rather than the names of the simple terms.

1. Battery module configuration recognition system for ID assignment according to an embodiment of the present invention

The battery module configuration recognition system for ID assignment of the present invention calculates the number of battery modules configured by itself and assigns IDs to BMSs of the respective battery modules using the calculated number.

1 is a block diagram of a battery module configuration recognition system for ID assignment according to an embodiment of the present invention.

Referring to FIG. 1, a system for recognizing a battery module configuration for ID allocation according to an exemplary embodiment of the present invention may include a battery module 200: 200a, 200b, 200c,..., 200n, and an entire battery pack including one or more battery cells. The battery pack 100 includes a BMS 300 of a battery pack that controls and calculates the number of battery modules, and a memory 400 that stores the calculated battery modules.

On the other hand, when there are two or more battery modules 200 including one or more battery cells, the other battery modules 200b, 200c, ..., 200n having the same configuration as the battery module 200a are configured in electrical series connection. do.

In addition, each battery module 200 includes a battery module BMS (210: 210a, 210b, 210c, ..., 210n) that can be assigned an ID to measure the module voltage of the battery module and identify the battery module do.

On the other hand, the BMS 300 of the battery pack is measured in the pack voltage measuring unit 310 and the pack voltage measuring unit 310 of the battery pack and the module voltage measured by the BMS 210 of the battery module to measure the voltage of the entire battery pack The controller 320 may be configured to calculate the measured pack voltage, recognize the number of battery modules, and assign an ID to the BMS 210 of the battery module based on the number of battery modules.

In more detail, the control unit 320 calculates the number of battery modules by dividing the pack voltage measured by the pack voltage measuring unit 310 of the battery pack by the module voltage measured by the BMS 210 of the battery module. And an ID allocator 322 for setting the BMS 300 of the battery pack as the master BMS and allocating the BMS 210 of each battery module to the slave BMS according to the number calculated by the calculator 321. do. The module voltage of the battery module measured here measures one battery module arbitrarily.

The memory 400 may store the voltage measured by the BMS 210 of the battery module and the voltage measured by the BMS 300 of the battery pack, and may also store the number of battery modules calculated by the calculator 321. .

2. A method of recognizing a battery module configuration for ID assignment according to an embodiment of the present invention

The method of recognizing a battery module configuration for ID allocation according to the present invention recognizes the number of battery modules by calculating the measured pack voltage of the battery pack and the measured module module voltage, and matches each battery according to the recognized number of battery modules. You can assign an ID to the module's BMS.

2 is a flowchart illustrating a method of recognizing a battery module configuration for ID assignment according to an embodiment of the present invention.

2, a method of recognizing a battery module configuration for ID allocation according to an exemplary embodiment of the present disclosure measures a module voltage of a battery module including at least one battery cell connected in series and a pack voltage of a battery pack and measures the measured voltage thereof. The number of battery modules may be recognized by the battery pack itself using a method of calculating the number of battery modules (step S200 of recognizing the number of battery modules). The number of battery modules recognized here may be stored in a memory.

In addition, the BMS ID allocating step (S300) for allocating the ID required for the BMS of each battery module according to the number of battery modules recognized to identify each battery module when controlling the battery pack is configured.

Hereinafter, each step will be described in more detail with reference to FIGS. 3 and 5.

The battery module number recognition step S200 will be described in detail with reference to FIG. 3.

3 is a flowchart of a battery module number recognition step (S200) of the method for recognizing a battery module configuration for ID allocation according to an embodiment of the present disclosure.

Referring to FIG. 3, the battery module number recognition step S200 first measures the pack voltage of the battery pack (battery pack voltage measurement step S210). In addition, the module voltage of one battery module arbitrarily selected is also measured (battery module voltage measurement step: S220).

Thus, the controller 320 calculates the measured voltages of the battery pack and the battery module to recognize the number of battery modules (measurement voltage calculation step S230). Here, the method for calculating the number of battery modules may derive the number of battery modules by dividing the pack voltage of the battery pack measured by the measured module voltage of the battery module.

For example, the number of battery modules is obtained by (measured pack voltage) / (measured module voltage).

The number of the recognized battery modules may be applied to an algorithm for allocating a capacity size of battery module data received in a BMS of a battery pack, and an algorithm for allocating a BMS ID necessary for battery pack operation control.

In addition, the BMS ID allocation step S300 will be described in detail with reference to FIG. 4.

4 is a flowchart illustrating a BMS ID assignment step S300 of a method for recognizing a battery module configuration for ID assignment according to an embodiment of the present invention.

Referring to FIG. 4, the BMS ID allocation step S300 may be performed by using the number of battery modules calculated in the master BMS setting step S310 and the measured voltage calculation step S230, which first set the BMS of the battery pack to the master BMS. It comprises a slave BMS ID assignment step (S320) for allocating the ID of the slave type in a sequential manner to the BMS of the battery module.

In addition, the master BMS may transmit a battery module control command through communication with each slave BMS assigned an ID and receive data acquired from the slave BMS.

Meanwhile, the slave BMS ID allocation step S320 will be described in detail with reference to FIG. 5.

5 is a flowchart illustrating a slave BMS ID allocation step (S320) of a method for recognizing a battery module configuration for ID allocation according to an embodiment of the present invention.

Referring to FIG. 5, since the battery pack 100 includes one or more battery modules 200, first, ID is assigned to the first slave BMS as k (first slave BMS ID assignment step: S321). In this case, the first slave BMS means a slave BMS to which an ID is first assigned and sequentially assigns an ID to the BMS of the battery module.

Therefore, n in the nth slave BMS means the number assigned the ID.

Meanwhile, the first slave BMS to which the ID is assigned transmits an ID allocation request signal to the controller so that (k + n), which is an ID, may be sequentially assigned to the next (n + 1) slave BMS (transmitting the ID allocation request signal). Step: S322).

In addition, when the ID allocation request signal transmitted from the controller 320 is received, n means the number of IDs of the (n + 1) slave BMSs in which the number of battery modules stored in the memory 400 and the next ID allocation is requested. Compare +1. Therefore, it is checked whether the number of stored battery modules is greater than the number of IDs to be allocated (slave BMS ID allocation checking step: S323).

If the number of battery modules recognized here is less than n + 1, the controller 320 recognizes that all of the IDs are assigned to the BMS of each battery module and ends the corresponding algorithm.

In addition, when the number of battery modules recognized is greater than n + 1, the ID is assigned to the (n + 1) slave BMS as (k + n) and the ID is assigned to the next (n + 2) slave BMS (k +. generate an ID assignment request signal allocated to n + 1) (n + 1 slave BMS ID assignment step: S324).

On the other hand, although the technical spirit of the present invention has been described in detail according to the above embodiment, it should be noted that the above embodiment is for the purpose of explanation and not for the limitation. In addition, various embodiments may be possible to those skilled in the art within the claims described.

100: battery pack
200: battery module
210: BMS of the battery module
300: BMS of the battery pack
310: pack voltage measurement unit
320: control unit
321: calculation unit
322: ID allocation unit
400: memory

Claims (8)

A battery module configuration recognition system in which one or more battery modules assign an ID to a battery module in a battery pack connected in series.
Each of the one or more battery modules,
A BMS of the battery module measuring the module voltage of each battery module;
It is configured to include,
The battery pack is
Battery pack BMS; And
A memory that stores the number of battery modules;
It is configured to include,
BMS of the battery pack,
A measuring unit measuring a pack voltage of the battery pack; And
A controller for recognizing the number of connected battery modules based on the module voltage measured in the BMS of one or more battery modules and the pack voltage measured in the battery pack measuring unit;
It is configured to include,
The memory stores the number of battery modules recognized by the controller,
The control unit,
An operation unit configured to calculate the number of battery modules by dividing the pack voltage measured by the measuring unit of the battery pack by the module voltage measured by the BMS of any one of the battery modules; And
An ID allocator configured to set a BMS of the battery pack as a master BMS and assign an ID of a BMS of each battery module to a slave BMS according to the number of battery modules stored in the memory;
Battery module configuration recognition system for ID assignment, characterized in that comprises a.
delete A method of recognizing a battery module configuration for assigning IDs of battery modules constituting a battery pack in a battery pack in which one or more battery modules are connected in series,
A battery module number recognition step of measuring a voltage of the battery pack and the battery module and calculating the measured voltages of the battery pack and the battery module to recognize the number of one or more battery modules; And
A BMS ID assignment step of allocating a slave ID to a BMS of each battery module according to a master ID and a number of the recognized battery modules to a BMS of a battery pack;
It is configured to include,
Recognizing the number of battery modules,
A battery pack voltage measuring step of measuring a pack voltage flowing in the battery pack;
A unit battery module voltage measuring step of measuring a voltage of the unit battery module; And
A measurement voltage calculation step of recognizing the number of battery modules by calculating the measurement voltages of the battery pack and the unit battery module;
It is configured to include,
The measured voltage calculation step,
And dividing the measured pack voltage of the battery pack by the measured module voltage of the unit battery module to calculate the number of battery modules.
delete delete The method according to claim 3,
The BMS ID assignment step,
Setting a master BMS by the BMS of the battery pack as a master BMS; And
A slave BMS ID allocating step of allocating BMSs of respective battery modules to IDs corresponding to slaves sequentially according to the number of the recognized battery modules;
Battery module configuration recognition method for ID assignment, comprising a.
The method according to claim 6,
The slave BMS ID assignment step,
A first slave BMS ID assignment step of allocating an ID to the first slave BMS with k (k is a fixed constant);
When an ID is assigned to the first slave BMS, the first slave BMS sequentially transmits an ID allocation request signal to the controller so that (k + n), which is an ID, is assigned to the first (n + 1, n is an integer of 1 or more) slave BMS. ID transmission request signal transmission step of transmitting; And
The control unit receiving the ID allocation request signal compares the number of the recognized battery modules with n + 1, which means the number of ID allocations of the (n + 1) slave BMSs receiving the ID allocation request, to determine the number of battery modules. A slave BMS ID allocation checking step of checking whether IDs are allocated according to the number;
Battery module configuration recognition method for ID assignment, comprising a.
The method according to claim 7,
The slave BMS ID assignment confirmation step,
And recognizing (k + n) as an ID to a corresponding (n + 1) slave BMS when the number of the recognized battery modules is greater than n + 1.
KR1020150180661A 2015-12-17 2015-12-17 System and method recognizing of battery module construction for identifier allocation KR102035677B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
KR1020150180661A KR102035677B1 (en) 2015-12-17 2015-12-17 System and method recognizing of battery module construction for identifier allocation
PCT/KR2016/014542 WO2017105046A1 (en) 2015-12-17 2016-12-12 Battery module and cell configuration recognition system for id assignment
US15/577,959 US10794957B2 (en) 2015-12-17 2016-12-12 Battery module and cell configuration recognition system for ID assignment
CN201680034750.8A CN107710006B (en) 2015-12-17 2016-12-12 Battery module and battery cell configuration identification system for ID distribution
EP16875988.4A EP3287802B1 (en) 2015-12-17 2016-12-12 Battery module and cell configuration recognition system for id assignment
JP2017561864A JP6568955B2 (en) 2015-12-17 2016-12-12 Battery module and cell configuration recognition system for ID assignment

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KR1020150180661A KR102035677B1 (en) 2015-12-17 2015-12-17 System and method recognizing of battery module construction for identifier allocation

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WO2024043580A1 (en) * 2022-08-23 2024-02-29 주식회사 엘지에너지솔루션 Device for cell id restoration and method for operating same

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KR20010055891A (en) 1999-12-13 2001-07-04 김형벽ㅂ Post-Denitrification Device of Conventional Activated Sludge Process Using Sulfur
KR20140139322A (en) * 2013-05-27 2014-12-05 삼성에스디아이 주식회사 Battery management system and driving method thereof
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Publication number Priority date Publication date Assignee Title
JP2008157808A (en) * 2006-12-25 2008-07-10 Toshiba Corp Battery pack system
KR101542094B1 (en) * 2011-11-16 2015-08-06 주식회사 엘지화학 Battery management system and battery pack protection apparatus including the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024043580A1 (en) * 2022-08-23 2024-02-29 주식회사 엘지에너지솔루션 Device for cell id restoration and method for operating same

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