Title of invention: BMS recognition system and method
Technical field
[One]
This application is a priority claim application for Korean Patent Application No. 10-2018-0166763 filed on December 20, 2018, and all contents disclosed in the specification and drawings of the application are incorporated herein by reference.
[2]
The present invention relates to a BMS recognition system and method, and more particularly, to a BMS recognition system and method for effectively recognizing a master BMS and a slave BMS in a battery pack having a plurality of BMSs.
Background
[3]
In recent years, as the demand for portable electronic products such as notebook computers, video cameras, portable telephones, etc. is rapidly increasing, and development of electric vehicles, energy storage batteries, robots, satellites, etc. is in earnest, high-performance secondary batteries capable of repetitive charging and discharging Research on is being actively conducted.
[4]
Currently commercialized secondary batteries include nickel cadmium batteries, nickel hydride batteries, nickel zinc batteries, and lithium secondary batteries, among which lithium secondary batteries have little memory effect compared to nickel-based secondary batteries, so charging and discharging are free. It has a very low self-discharge rate and is in the spotlight for its high energy density.
[5]
Batteries are used in various fields, and fields in which batteries are widely used in recent years, such as electric powered vehicles or smart grid systems, often require large capacity. In order to increase the capacity of the battery pack, there may be a method of increasing the capacity of the secondary battery, that is, the battery cell itself, but in this case, the capacity increase effect is not large, there is a physical limitation to the size expansion of the secondary battery, and management is inconvenient. Has. Therefore, in general, a battery pack in which a plurality of battery modules are connected in series and in parallel is widely used.
[6]
Meanwhile, as the need for a large-capacity structure of a battery pack has recently increased, there is an increasing demand for a battery pack having a multi-module structure in which a plurality of battery modules are connected in series and/or in parallel.
[7]
Since the battery pack of such a multi-module structure includes a plurality of batteries, it is limited to use one BMS to control the charging/discharging state of all batteries. Therefore, recently, a BMS is installed for each battery module included in the battery pack, one of the BMSs is designated as the master BMS, the remaining BMSs are designated as the slave BMS, and then each battery module is charged by the master-slave method. A technique for controlling discharge is being used.
[8]
In the master-slave method, the master BMS communicates with the slave BMS in order to manage the charge/discharge of the battery module included in the battery pack, and collects various charge/discharge monitor data about the battery module in charge of the slave BMS or A control command for controlling the charging/discharging operation of the module is transmitted to the corresponding slave BMS.
[9]
Conventionally, when the master BMS wants to change the operation mode of the slave BMS, after the master BMS reads the identification information of the slave BMS using a wired or wireless communication network, the master BMS changes the operation mode for each slave BMS by a program algorithm. A method of converting and the like is being used.
[10]
However, such a conventional method has a disadvantage in that a hardware circuit for storing identification information is separately required, and a high-performance processor is required to execute a complex software algorithm.
Detailed description of the invention
Technical challenge
[11]
The present invention has been invented to solve the above problems, and an object of the present invention is to provide an improved BMS recognition system and method for effectively recognizing a master BMS and a slave BMS in a battery pack having a plurality of BMSs.
[12]
Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by examples of the present invention. In addition, it will be easily understood that the objects and advantages of the present invention can be realized by means of the claims and combinations thereof.
Means of solving the task
[13]
A BMS recognition system according to an aspect of the present invention includes a master BMS configured to transmit an operation mode change signal to the slave BMS by flashing the master light emitting unit when a master light emitting unit is provided and an operation mode of a slave BMS is to be switched; And a slave BMS comprising a slave light-receiving unit configured to correspond to the master light-emitting unit, and configured to switch an operation mode in response to the operation mode change signal by recognizing that the master light-emitting unit is turned on through the slave light-receiving unit. have.
[14]
The master BMS includes a plurality of master light emitting units configured to correspond to respective slave light receiving units of the plurality of slave BMSs, and flashing at least one master light emitting unit of the plurality of master light emitting units to signal the operation mode switching to the corresponding slave BMS Can be configured to deliver.
[15]
The slave BMS may include a slave light emitting unit, and when a failure condition occurs and a failure condition is to be transmitted to the master BMS, the slave light emitting unit may be configured to blink to transmit the failure condition to the master BMS.
[16]
The master BMS may include a master light-receiving unit configured to correspond to the slave light-emitting unit, and may be configured to recognize a failure state of the slave BMS by recognizing that the slave light-emitting unit is turned on through the master light-receiving unit.
[17]
The master BMS may include a plurality of master light emitting units configured to correspond to the slave light receiving units of the plurality of slave BMSs.
[18]
Identification information may be assigned to the plurality of master light emitting units to correspond to mounting positions of the plurality of slave BMSs.
[19]
The master BMS may be configured to sequentially flash the plurality of master light emitting units to sequentially allocate the identification information to the plurality of slave BMSs.
[20]
The master BMS may be configured to transmit an operation mode change signal including the identification information to the slave BMS by blinking the master light emitting unit.
[21]
The slave BMS checks whether the identification information included in the operation mode change signal received through the slave light receiving unit is the same as the allocated identification information, and responds to the operation mode change signal based on the confirmation result. It can be configured to switch the operation mode.
[22]
The slave BMS includes a slave light emitting unit configured to correspond to a slave light receiving unit of an adjacent slave BMS, and when it recognizes that the master light emitting unit is turned on and switches its own operation mode in response to the operation mode change signal It may be configured to flash the light emitting unit to apply an operation mode change signal to an adjacent slave BMS in a relay manner.
[23]
A battery pack according to another aspect of the present invention may include a BMS recognition system according to an aspect of the present invention.
[24]
A vehicle according to another aspect of the present invention may include a BMS recognition system according to an aspect of the present invention.
[25]
A method of recognizing a BMS according to another aspect of the present invention includes: when a slave BMS is to be operated in an operation mode, flashing a master light emitting unit to transmit an operation mode switching signal to the slave BMS; And switching an operation mode in response to the operation mode switching signal by recognizing that the master light emitting unit is turned on through a slave light receiving unit configured to correspond to the flashing of the master light emitting unit.
[26]
The transmitting of the operation mode switching signal includes flashing at least one master light emitting unit among a plurality of master light emitting units configured to correspond to respective slave light receiving units of the plurality of slave BMSs to transmit an operation mode switching signal to at least one slave BMS. It may include steps.
Effects of the Invention
[27]
According to an aspect of the present invention, for a plurality of BMSs, the master BMS can effectively switch the operation mode of the slave BMS without receiving information from the slave BMS in advance or without additional hardware for switching the operation mode.
[28]
According to another aspect of the present invention, since communication interference between a master BMS and a slave BMS does not occur, a delay in operation mode switching due to a time delay that may be caused by such communication interference can be prevented.
[29]
According to another aspect of the present invention, the safety of BMS recognition may be improved through signal transmission according to immediate light emission and light reception.
[30]
In addition to the present invention may have a variety of other effects, these other effects of the present invention can be understood by the following description, can be seen more clearly by the embodiments of the present invention.
Brief description of the drawing
[31]
The following drawings attached to the present specification illustrate preferred embodiments of the present invention, and serve to further understand the technical idea of ​​the present invention together with the detailed description of the present invention to be described later, so the present invention is described in such drawings. It is limited to and should not be interpreted.
[32]
1 is a diagram schematically showing the configuration of a BMS recognition system according to an embodiment of the present invention.
[33]
2 is a diagram schematically showing the configuration of a BMS recognition system according to another embodiment of the present invention.
[34]
3 is a diagram schematically showing the configuration of a BMS recognition system according to another embodiment of the present invention.
[35]
4 is a flowchart schematically illustrating a BMS recognition method according to an embodiment of the present invention.
Mode for carrying out the invention
[36]
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as being limited to their usual or dictionary meanings, and the inventors appropriately explain the concept of terms in order to explain their own invention in the best way. Based on the principle that it can be defined, it should be interpreted as a meaning and concept consistent with the technical idea of ​​the present invention.
[37]
Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiment of the present invention, and do not represent all the technical spirit of the present invention. It should be understood that there may be equivalents and variations.
[38]
In addition, in describing the present invention, when it is determined that a detailed description of a related known configuration or function may obscure the subject matter of the present invention, the detailed description thereof will be omitted.
[39]
Throughout the specification, when a certain part "includes" a certain component, it means that other components may be further included, rather than excluding other components unless specifically stated to the contrary. In addition, a term such as'processor' described in the specification means a unit that processes at least one function or operation, which may be implemented by hardware or software, or a combination of hardware and software.
[40]
In addition, throughout the specification, when a part is said to be "connected" with another part, it is not only "directly connected", but also "indirectly connected" with another element interposed therebetween. Includes.
[41]
In this specification, the battery cell 10 refers to one independent cell that has a negative terminal and a positive terminal, and is physically separable. For example, one pouch-type lithium polymer cell may be regarded as the battery cell 10.
[42]
[43]
The BMS recognition system according to an embodiment of the present invention may be a system that recognizes BMS provided in a battery pack. For example, the battery pack according to an embodiment of the present invention may be provided in a vehicle. In addition, the battery pack according to an embodiment of the present invention may include a plurality of BMSs.
[44]
A battery pack according to an embodiment of the present invention may include a master BMS 100 and a slave BMS 200.
[45]
1 is a diagram schematically showing the configuration of a BMS recognition system according to an embodiment of the present invention.
[46]
For example, as shown in the configuration of FIG. 1, a battery pack according to an embodiment of the present invention may include a plurality of battery modules 1. In addition, the plurality of battery modules 1 may include a plurality of battery cells 10 connected in series and/or in parallel with each other.
[47]
A plurality of BMSs included in the BMS recognition system according to an embodiment of the present invention may be the same BMS (Battery Management System) to which an algorithm for assigning an identifier according to the present invention is applied.
[48]
For example, a plurality of BMSs according to an embodiment of the present invention may be a BMS having the same configuration in both hardware and software. In addition, each of the plurality of BMSs may control one or more battery cells 10 that they are responsible for. The control functions of the plurality of BMS include charge/discharge control, equalization control, switching, electrical characteristic value measurement and monitoring, error indication, on/off control, SOC (State Of Charge) estimation, and the like. Can include.
[49]
In addition, the plurality of BMSs may exchange electrical signals using a wired or wireless communication network. Preferably, a communication network connecting a plurality of BMSs may be a Bluetooth, Wi-Fi, or Controller Area Network (CAN) communication network.
[50]
Preferably, the plurality of BMSs according to an embodiment of the present invention may each include a processor and a memory device.
[51]
The processor may perform each operation of the BMS recognition system according to an embodiment of the present invention. In addition, the memory device may pre-store information necessary for the operation of the BMS recognition system according to an embodiment of the present invention.
[52]
Meanwhile, the processor selectively selects a processor known in the art, an application-specific integrated circuit (ASIC), another chipset, a logic circuit, a register, a communication modem, and/or a data processing device, in order to perform the above-described operation. It can be implemented in a form including.
[53]
On the other hand, there is no particular limitation on the type of the memory device as long as it is a storage medium capable of recording and erasing information. For example, the memory device may be a RAM, ROM, register, hard disk, optical recording medium, or magnetic recording medium. The memory devices may also each be electrically connected to the processor via, for example, a data bus or the like, so as to be each accessible by the processor. The memory device may also store and/or update and/or erase and/or transmit a program including various control logic performed by the processor, and/or data generated when the control logic is executed.
[54]
Referring to FIG. 1, a BMS recognition system according to an embodiment of the present invention includes a master BMS 100 and one or more slave BMSs 200.
[55]
The master BMS 100 may include a master light emitting unit 110. For example, as shown in the configuration of FIG. 1, the master BMS 100 may include a master light emitting unit 110 made of a light emitting element. For example, the master light-emitting unit 110 may be electrically connected to the master BMS 100 so as to transmit and receive electrical signals, and may emit light based on an electrical signal received from the master BMS 100. For example, the light emitting device may be implemented as a light emitting diode.
[56]
In addition, when the master BMS 100 wants to change the operation mode of the slave BMS 200, the master light emitting unit 110 flashes to transmit an operation mode change signal to the slave BMS 200.
[57]
For example, in the embodiment of FIG. 1, the master BMS 100 flashes the master light emitting unit 110 corresponding to the slave BMS 200 to switch the operation mode to switch the operation mode to the slave BMS 200 Can carry signals.
[58]
Here, the operation mode switching signal may be a signal for awakening the BMS in a sleep state. Alternatively, the operation mode switching signal may be a signal for converting a BMS in an awake state into a sleep state.
[59]
The slave BMS 200 may include a slave light receiving unit 220 configured to correspond to the blinking of the master light emitting unit 110.
[60]
For example, as shown in the configuration of FIG. 1, the slave BMS 200 may each include slave light receiving units 220 configured with light receiving elements. In addition, the slave light receiving unit 220 is electrically connected to the slave BMS 200 so as to transmit and receive electrical signals, and may transmit an electrical signal to the slave BMS 200 in response to blinking of the master light emitting unit 110. For example, the light-receiving element may be implemented as a light-receiving diode.
[61]
In addition, the slave BMS 200 may switch the operation mode in response to the operation mode change signal by recognizing that the master light emitting unit 110 is turned on through the slave light receiving unit 220.
[62]
For example, as shown in the configuration of FIG. 1, the slave BMS 200 may recognize that the master light emitting unit 110 corresponding to each slave light receiving unit 220 is turned on.
[63]
Each of the slave light receiving units 220 may transmit an electrical signal to the slave BMS 200 based on this when the corresponding master light emitting unit 110 is turned on. In addition, when the slave BMS 200 receives an electrical signal through the slave light receiving unit 220, the operation mode may be switched. For example, the operation mode may include a sleep mode and an awake mode.
[64]
Preferably, the master BMS 100 according to an embodiment of the present invention may include a plurality of master light emitting units 110 configured to correspond to the slave light receiving units 220 of the plurality of slave BMS 200.
[65]
For example, as shown in the configuration of FIG. 1, the master BMS 100 is a plurality of slave BMSs 200 corresponding to the number of the plurality of slave BMSs 200 to correspond to the slave light receiving units 220 of the plurality of slave BMSs 200. The master light emitting unit 110 may be provided. In this case, the plurality of master light emitting units 110 may be disposed at positions corresponding to each of the slave light receiving units 220.
[66]
In addition, the master BMS 100 may transmit an operation mode change signal to at least one or more slave BMS 200 by blinking at least one master light emitting unit 110 of the plurality of master light emitting units 110.
[67]
For example, as shown in the configuration of FIG. 1, the master BMS 100 may determine the slave BMS 200 to which the operation mode is to be switched. Subsequently, the master BMS 100 may flash the master light emitting unit 110 corresponding to the slave light receiving unit 220 connected to the target slave BMS 200 to be switched to the operation mode.
[68]
Preferably, the plurality of master light emitting units 110 may be assigned identification information to correspond to the mounting positions of the plurality of slave BMS 200.
[69]
For example, as shown in the configuration of FIG. 1, the plurality of master light emitting units 110 may be sequentially assigned identification information to correspond to the mounting positions of the plurality of slave BMSs 200. For example, the identification information may include sequential numeric information from 1 to N for the N slave BMSs 200.
[70]
More preferably, the master BMS 100 according to an embodiment of the present invention may sequentially allocate identification information to the plurality of slave BMS 200 by sequentially flashing the plurality of master light emitting units 110. have.
[71]
For example, as shown in the configuration of FIG. 1, the master BMS 100 may sequentially flash a plurality of master light emitting units 110 based on identification information. In this case, the master BMS 100 may transmit identification information to each slave BMS 200 that has received an electrical signal from the slave light receiving unit 220 through wired or wireless communication.
[72]
Meanwhile, the master BMS 100 flashes one or more of the master light-emitting units 110 among the plurality of master light-emitting units 110 so that an operation mode conversion signal including the assigned identification information is transmitted, so that at least one slave BMS 200 ), the operation mode conversion signal including the identification information can be transmitted.
[73]
The slave BMS 200 recognizes that the master light emitting unit 110 is turned on through the slave light receiving unit 220 and receives an operation mode switching signal, and identification information included in the operation mode switching signal is pre-allocated with identification information. You can check whether they are the same or not.
[74]
The slave BMS 200 may switch the operation mode in response to the operation mode change signal if the identification information included in the received operation mode change signal is identical to the previously allocated identification information. Conversely, the slave BMS 200 may not switch the operation mode if the identification information included in the transmitted operation mode change signal is not the same as the pre-allocated identification information.
[75]
[76]
2 is a diagram schematically showing the configuration of a BMS recognition system according to another embodiment of the present invention.
[77]
Referring to FIG. 2, a BMS recognition system according to an embodiment of the present invention may include a master BMS 100 and a slave BMS 200.
[78]
Preferably, the slave BMS 200 according to an embodiment of the present invention may include a slave light emitting unit 210. For example, as shown in the configuration of FIG. 2, the slave BMS 200 according to an exemplary embodiment of the present invention may include a slave light emitting unit 210 formed of a light emitting device. For example, the slave light emitting unit 210 may be electrically connected to the slave BMS 200 so as to transmit and receive electrical signals, and may emit light based on an electrical signal received from the slave BMS 200. For example, the light emitting device may be implemented as a light emitting diode.
[79]
More preferably, the master BMS 100 according to an embodiment of the present invention may include a master light receiving unit 120 configured to correspond to the blinking of the slave light emitting unit 210.
[80]
For example, as shown in the configuration of FIG. 2, the master BMS 100 according to an embodiment of the present invention may include a master light receiving unit 120 composed of a light receiving element. In addition, the master light-receiving unit 120 is electrically connected to the master BMS 100 so as to transmit and receive electrical signals, and may transmit an electrical signal to the master BMS 100 in response to the blinking of the slave light-emitting unit 210. . For example, the light-receiving element may be implemented as a light-receiving diode.
[81]
Preferably, the master BMS 100 according to an embodiment of the present invention may include a master light emitting unit 110 and a master light receiving unit 120. For example, the master light-emitting unit 110 and the master light-receiving unit 120 may be disposed at positions corresponding to each of the slave BMS 200.
[82]
Preferably, the slave BMS 200 according to an embodiment of the present invention may include a slave light emitting unit 210 and a slave light receiving unit 220.
[83]
For example, the master light-emitting unit 110 and the slave light-receiving unit 220 are disposed at positions corresponding to each other, and according to the blinking of the master light-emitting unit 110, the corresponding slave light-receiving unit 220 is connected to the slave BMS 200. It can transmit electrical signals.
[84]
In addition, the master light-receiving unit 120 and the slave light-emitting unit 210 are disposed at positions corresponding to each other, and the corresponding master light-receiving unit 120 transmits an electrical signal to the master BMS 100 as the slave light-emitting unit 210 flashes. I can deliver.
[85]
In addition, when a failure condition occurs and the slave BMS 200 wants to transmit the failure condition to the master BMS 100, the slave BMS 200 may flash the slave light emitting unit 210 to transmit the failure condition to the master BMS 100.
[86]
2 ) Can be flashed to communicate the failure situation to the master BMS 100.
[87]
In addition, the master BMS 100 may recognize that the slave light emitting unit 210 is turned on through the master light receiving unit 120 to recognize a failure situation of the slave BMS 200. In this case, the master BMS 100 may receive the type and contents of the failure situation from the slave BMS 200 through a wired or wireless communication network.
[88]
[89]
3 is a diagram schematically showing the configuration of a BMS recognition system according to another embodiment of the present invention.
[90]
Referring to FIG. 3, a BMS recognition system according to an embodiment of the present invention may include a master BMS 100 and a slave BMS 200.
[91]
Preferably, the slave BMS 200 according to an embodiment of the present invention may include a slave light emitting unit 210 configured to correspond to the slave light receiving unit 220 of the adjacent slave BMS 200.
[92]
For example, as shown in the configuration of FIG. 3, the slave BMS 200 according to an embodiment of the present invention may include a slave light receiving unit 220 and a slave light emitting unit 210, respectively. In addition, the slave light receiving unit 220 may be disposed at a position corresponding to the slave light emitting unit 210 of the adjacent slave BMS 200. In addition, each slave light emitting unit 210 may be disposed at a position corresponding to the slave light receiving unit 220 of the adjacent slave BMS 200.
[93]
In addition, when the slave BMS 200 recognizes that the master light-emitting unit 110 is turned on and switches its own operation mode in response to the operation mode change signal, the slave light-emitting unit 210 flashes the adjacent slave BMS. At 200, the operation mode conversion signal can be applied in a relay method.
[94]
For example, as shown in the configuration of FIG. 3, the master BMS 100 according to an embodiment of the present invention flashes the master light emitting unit 110 to a slave light receiving unit mounted on the adjacent slave BMS 200 ( 220) can transmit an operation mode change signal. Subsequently, the slave BMS 200 may switch its own operation mode in response to the operation mode change signal. In addition, the slave BMS 200 may apply an operation mode change signal to the adjacent slave BMS 200 in a relay manner by blinking the slave light emitting unit 210.
[95]
The BMS recognition system according to the present invention may be a component of a battery pack including a plurality of battery cells. Here, the battery pack may include one or more secondary batteries, the BMS recognition system, electrical equipment (relays, fuses, etc.), and a case. The plurality of battery cells may be divided into N groups, and each cell group may be combined with N BMSs in a 1:1 relationship. It is obvious that the battery cells within each cell group can be connected in series and/or in parallel.
[96]
In addition, the BMS recognition system according to the present invention may be a component of a battery driving system including a battery and a load receiving power therefrom. Examples of the battery driving system include a vehicle, an electric vehicle (EV), a hybrid vehicle (HEV), an electric bicycle (E-Bike), a power tool, an energy storage system, and an uninterruptible power supply. It may be a device (UPS), a portable computer, a portable telephone, a portable audio device, a portable video device, and the like, and an example of the load is It may be a power conversion circuit that converts the power required by the circuit component.
[97]
[98]
4 is a flowchart schematically illustrating a method of recognizing a BMS according to an embodiment of the present invention. In FIG. 4, the performing subject of each step may be referred to as each component of the BMS recognition system according to the present invention described above.
[99]
As shown in FIG. 4, the switch control method according to the present invention includes an operation mode switching signal transmission step (S100) and an operation mode switching step (S110).
[100]
The operation mode change signal transmission step (S100) is a step of transmitting an operation mode change signal to the slave BMS 200 by blinking the master light emitting unit 110 when the operation mode of the slave BMS 200 is to be changed. , May be performed by the master BMS (100).
[101]
The master BMS 100 may transmit an operation mode change signal to the slave BMS 200 to switch the operation mode by blinking the connected master light emitting unit 110.
[102]
In the operation mode switching step (S110), in response to the operation mode switching signal by recognizing that the master light emitting unit 110 is turned on through the slave light receiving unit 220 configured to correspond to the blinking of the master light emitting unit 110 As a step of switching the operation mode, it may be performed by the slave BMS 200.
[103]
Preferably, in the operation mode switching signal transmission step (S100) according to an embodiment of the present invention, a plurality of master BMS 100 is configured to correspond to each slave light receiving unit 220 of the plurality of slave BMS 200 A light emitting unit 110 may be provided, and an operation mode switching signal may be transmitted to at least one slave BMS 200 by blinking at least one master light emitting unit 110 of the plurality of master light emitting units 110.
[104]
Preferably, in the operation mode switching step (S110) according to an embodiment of the present invention, the slave BMS 200 is configured to correspond to the slave light receiving unit 220 of the adjacent slave BMS 200. It can be equipped. In addition, when the slave BMS 200 recognizes that the master light emitting unit 110 is turned on and switches its own operation mode in response to the operation mode switching signal, the slave light emitting unit 210 blinks to An operation mode conversion signal may be applied to the slave BMS 200 in a relay manner.
[105]
For example, in the embodiment of FIG. 3, when the master light emitting unit 110 is turned on to switch the operation mode of the adjacent slave BMS 200, the slave light emitting unit 210 connected to the slave BMS 200 whose operation mode has been switched May flash. That is, since the slave light emitting unit 210 and the slave light receiving unit 220 of the adjacent slave BMS 200 are disposed at corresponding positions, the operation modes of the plurality of slave BMS 200 can be switched in series.
[106]
[107]
In addition, when the control logic is implemented in software, a processor included in each BMS may be implemented as a set of program modules. In this case, the program module may be stored in a memory device and executed by a processor.
[108]
In addition, at least one or more of the various control logics of the processor are combined, and the combined control logics are written in a computer-readable code system, and there is no particular limitation on the type of the combined control logics as long as they are accessible by the computer. As an example, the recording medium includes at least one selected from the group including ROM, RAM, register, CD-ROM, magnetic tape, hard disk, floppy disk, and optical data recording device. In addition, the code system can be distributed and stored and executed on computers connected by a network. In addition, functional programs, codes, and segments for implementing the combined control logic can be easily inferred by programmers in the art to which the present invention pertains.
[109]
As described above, although the present invention has been described by the limited embodiments and drawings, the present invention is not limited thereto, and the technical idea of ​​the present invention and the following by those of ordinary skill in the art to which the present invention pertains. It goes without saying that various modifications and variations are possible within the equivalent range of the claims to be described.
[110]
[111]
(Explanation of code)
[112]
1: battery module
[113]
10: battery cell
[114]
100: master BMS
[115]
110: master light emitting unit
[116]
120: master light receiving unit
[117]
200: slave BMS
[118]
210: slave light emitting unit
[119]
220: slave light receiving unit
Claims
[Claim 1]
A master BMS having a master light emitting part and configured to transmit an operation mode change signal to the slave BMS by blinking the master light emitting part when the operation mode of the slave BMS is to be changed; And a slave BMS comprising a slave light-receiving unit configured to correspond to the master light-emitting unit, and configured to switch an operation mode in response to the operation mode change signal by recognizing that the master light-emitting unit is turned on through the slave light-receiving unit. BMS recognition system characterized by.
[Claim 2]
The method of claim 1, wherein the master BMS includes a plurality of master light emitting units configured to correspond to respective slave light receiving units of a plurality of slave BMSs, and flashing at least one master light emitting unit of the plurality of master light emitting units to correspond to the slave BMS. BMS recognition system, characterized in that configured to transmit the operation mode switching signal to.
[Claim 3]
The method of claim 1, wherein the slave BMS includes a slave light emitting unit, and when a failure condition occurs and a failure condition is to be transmitted to the master BMS, the slave light emitting unit is configured to flash the failure condition to transmit the failure condition to the master BMS. BMS recognition system characterized by.
[Claim 4]
The method of claim 3, wherein the master BMS includes a master light-receiving unit configured to correspond to the slave light-emitting unit, and is configured to recognize a failure state of the slave BMS by recognizing that the slave light-emitting unit is turned on through the master light receiving unit. BMS recognition system characterized by.
[Claim 5]
The method of claim 1, wherein the master BMS includes a plurality of master light emitting units configured to correspond to slave light receiving units of a plurality of slave BMSs, and the plurality of master light emitting units includes identification information to correspond to mounting positions of the plurality of slave BMSs. BMS recognition system, characterized in that assigned to.
[Claim 6]
The system of claim 5, wherein the master BMS is configured to sequentially allocate the identification information to the plurality of slave BMSs by sequentially blinking the plurality of master light emitting units.
[Claim 7]
The system of claim 6, wherein the master BMS is configured to transmit an operation mode change signal including the identification information to the slave BMS by blinking the master light emitting unit.
[Claim 8]
The method of claim 7, wherein the slave BMS checks whether the identification information included in the operation mode change signal received through the slave light receiving unit is the same as the assigned identification information, and the operation is performed based on the confirmation result. BMS recognition system, characterized in that configured to switch the operation mode in response to the mode change signal.
[Claim 9]
The method of claim 1, wherein the slave BMS includes a slave light-emitting unit configured to correspond to a slave light-receiving unit of an adjacent slave BMS, and recognizes that the master light-emitting unit is turned on and changes its operation mode in response to the operation mode switching signal. In case of switching, the slave light emitting unit is flashed to apply an operation mode switching signal to an adjacent slave BMS in a relay manner.
[Claim 10]
A battery pack comprising the BMS recognition system according to any one of claims 1 to 9.
[Claim 11]
A vehicle comprising the BMS recognition system according to any one of claims 1 to 9.
[Claim 12]
Transmitting an operation mode change signal to the slave BMS by blinking a master light emitting unit when switching the operation mode of the slave BMS; And converting an operation mode in response to the operation mode switching signal by recognizing that the master light emitting unit is turned on through a slave light receiving unit configured to correspond to the flashing of the master light emitting unit.
[Claim 13]
The method of claim 12, wherein the transmitting of the operation mode change signal comprises at least one slave BMS by flashing at least one master light emitting unit among a plurality of master light emitting units configured to correspond to respective slave light receiving units of the plurality of slave BMSs. BMS recognition method comprising the step of transmitting a mode change signal.