Battery management device and method of operation thereof

Abstract

A battery management device according to one embodiment disclosed in this document may include a sensor that generates information regarding a fire occurrence, and a controller that controls charging of the battery based on a power source for charging the battery supplied from a charger, and when charging of the battery is completed, monitors information regarding the fire occurrence based on a power source for a fire monitor supplied from the charger, and determines whether or not a fire has occurred based on the monitoring results.

Description

[Technical field]

[0001] The present invention claims the benefit of priority based on Korean Patent Application No. 10-2022-0019799, filed on February 15, 2022, and all contents disclosed in the documents of the Korean patent application are incorporated as part of this specification. SUMMARY OF THE DISCLOSURE The embodiments disclosed herein relate to a battery management apparatus and method of operation. [Background technology]

[0002] In recent years, research and development into secondary batteries has been actively conducted. Here, secondary batteries are batteries that can be charged and discharged, and include both conventional Ni / Cd batteries, Ni / MH batteries, and the more recent lithium-ion batteries. Among secondary batteries, lithium-ion batteries have the advantage of having a much higher energy density than conventional Ni / Cd batteries, Ni / MH batteries, and the like. In addition, lithium-ion batteries can be manufactured to be small and lightweight, so they are used as power sources for mobile devices, and in recent years their range of use has expanded to include power sources for electric vehicles, drawing attention as a next-generation energy storage medium.

[0003] When charging a battery included in a vehicle, a user often connects a connector to the vehicle and leaves the vehicle. After the battery is fully charged, all devices inside the vehicle enter a sleep mode after a set time to prevent the vehicle from discharging. If a fire breaks out inside the vehicle, it may be difficult to collect data or take measures to prevent the fire. Summary of the Invention [Problem to be solved by the invention]

[0004] One objective of the embodiments disclosed herein is to provide a battery management device and an operating method thereof that can detect and take action to prevent a fire if a fire occurs inside the vehicle after charging of the vehicle is completed.

[0005] One objective of the embodiments disclosed herein is to provide a battery management device and an operating method thereof that receives a minimum amount of power from the charging connector after charging of the vehicle is completed, and enables constant monitoring for the presence or absence of fire inside the vehicle.

[0006] The technical problems of the embodiments disclosed in this document are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description. [Means for solving the problem]

[0007] A battery management device according to one embodiment disclosed in this document may include a sensor that generates information regarding a fire occurrence, and a controller that controls charging of the battery based on a power source for charging the battery supplied from a charger, and when charging of the battery is completed, monitors information regarding the fire occurrence based on a power source for a fire monitor supplied from the charger, and determines whether or not a fire has occurred based on the monitoring results.

[0008] In one embodiment, the controller may control other devices within the vehicle to take action to prevent a fire based on the presence or absence of a fire.

[0009] In one embodiment, if the controller determines that a fire has occurred, the controller can store information regarding the fire in the charger or the battery management unit.

[0010] In one embodiment, the controller can receive a minimum amount of power from the charger to determine whether or not a fire has occurred.

[0011] In one embodiment, when charging of the battery is completed, the controller checks whether the connection with the charger has been disconnected, and if it is confirmed that the connection with the charger has not been disconnected, the controller requests the charger to supply power for the fire monitor and receives power for the fire monitor from the charger.

[0012] In one embodiment, the controller may switch to a sleep mode when it is confirmed that the connection with the charger has been released. In one embodiment, the controller may receive a user command for activating or deactivating the fire monitoring function, and when charging of the battery is completed while the fire monitoring function is activated by a first user command, monitor information regarding the fire occurrence based on a power source for the fire monitoring after the charging is completed, and when charging of the battery is completed while the fire monitoring function is deactivated by a second user command, switch to a sleep mode after the charging is completed.

[0013] An operating method of a battery management device according to one embodiment disclosed in this document may include the steps of generating information regarding a fire occurrence, monitoring the information regarding the fire occurrence based on a power source for a fire monitor supplied from the charger when charging of the battery is completed, and determining whether or not a fire has occurred based on the monitoring result.

[0014] In one embodiment, the method may further include controlling other devices in the vehicle to perform an operation for preventing a fire based on the occurrence of a fire.

[0015] In one embodiment, the method may further include a step of storing information about the fire in the charger or the battery management device when it is determined that a fire has occurred.

[0016] In one embodiment, the method may further include the steps of: when charging of the battery is completed, checking whether the charger can be disconnected; and when it is confirmed that the connection with the charger has not been disconnected, requesting the charger to supply power for the fire monitor, receiving power for the fire monitor from the charger, or switching to a sleep mode when it is confirmed that the connection with the charger has been disconnected.

[0017] In one embodiment, the method may further include receiving a user command for activating or deactivating the fire monitoring function, and if charging of the battery is completed while the fire monitoring function is activated by a first user command, monitoring information regarding the fire occurrence based on a power source for the fire monitor after the charging is completed, or if charging of the battery is completed while the fire monitoring function is deactivated by a second user command, switching to a sleep mode after the charging is completed. Effect of the Invention

[0018] The battery management device and its operating method according to one embodiment disclosed herein do not enter sleep mode even when the vehicle is fully charged, and can therefore detect a fire inside the vehicle and take the necessary action.

[0019] The battery management device and its operating method according to one embodiment disclosed in this document can constantly monitor the state of the vehicle after charging of the vehicle is completed, and if a fire occurs inside the vehicle, collect the data to perform a more fundamental analysis of the cause of the fire.

[0020] A battery management device and an operating method thereof according to one embodiment disclosed in this document are capable of detecting ignition factors inside the vehicle in advance and taking measures by receiving a minimum amount of power from the charger after the vehicle is fully charged and maintaining an operating mode without going into sleep mode.

[0021] The battery management device and its operating method according to one embodiment disclosed in this document can provide a user with a user interface that allows the user to select whether to enter sleep mode or remain in operating mode after the vehicle is fully charged, allowing the user to make the selection. In addition, this document may provide a variety of other benefits that may be perceived directly or indirectly. [Brief description of the drawings]

[0022] [Figure 1] FIG. 1 is a block diagram showing a configuration of a typical battery pack. [Diagram 2] FIG. 1 illustrates a vehicle including a battery management device according to one embodiment disclosed herein. [Diagram 3] FIG. 1 is a block diagram illustrating a battery management device according to one embodiment disclosed herein. [Figure 4] FIG. 2 illustrates an example display of a battery management device according to one embodiment disclosed herein. [Diagram 5] 1 is a flow chart illustrating a method of operation of a battery management device according to one embodiment disclosed herein. [Figure 6] 4 is a flowchart illustrating a method of operating a battery management device according to an embodiment disclosed herein. [Figure 7] 4 is a flowchart illustrating a method of operating a battery management device according to an embodiment disclosed herein. [Figure 8] 4 is a flowchart illustrating a method of operating a battery management device according to an embodiment disclosed herein. [Figure 9] FIG. 2 is a block diagram showing the hardware configuration of a computing system for performing an operation method of a battery management device according to an embodiment disclosed herein. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0023] Hereinafter, the embodiments disclosed in this document will be described in detail with reference to the exemplary drawings. When referring to components in each drawing, it should be noted that the same components are referred to by the same reference numerals as much as possible when they are displayed in other drawings. In addition, when describing the embodiments disclosed in this document, if a detailed description of related publicly known configurations or functions is deemed to hinder understanding of the embodiments disclosed in this document, the detailed description will be omitted.

[0024] When describing components of the embodiments disclosed in this document, terms such as first, second, A, B, (a), (b) and the like may be used. Such terms are merely used to distinguish the components from other components, and do not limit the essence, order, or procedure of the components. In addition, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the art to which the embodiments disclosed in this document belong. Terms as defined in commonly used dictionaries should be interpreted as having a meaning consistent with the contextual meaning of the relevant art, and should not be interpreted in an ideal or overly formal sense unless expressly defined in this application.

[0025] FIG. 1 is a block diagram showing the configuration of a typical battery pack. Referring to FIG. 1, a battery control system including a battery pack 1 according to an embodiment of the present invention and a host controller 2 included in a host system is shown.

[0026] 1, the battery pack 1 includes a chargeable and dischargeable battery module 10 consisting of one or more battery cells, a switching unit 14 connected in series to the (+) terminal side or (-) terminal side of the battery module 10 for controlling the flow of charge and discharge current of the battery module 10, and a battery management system 20 for monitoring the voltage, current, temperature, etc. of the battery pack 1 and controlling and managing the same to prevent overcharging and overdischarging, etc. In this case, the battery pack 1 may include a plurality of battery modules 10, sensors 12, switching units 14, and battery management systems 20.

[0027] Here, the switching unit 14 is an element for controlling the flow of current for charging or discharging the multiple battery modules 10, and may be, for example, at least one relay, electromagnetic contactor, etc., depending on the specifications of the battery pack 1.

[0028] The battery management system 20 is an interface that receives input of measured values ​​of the various parameters described above, and may include a plurality of terminals and a circuit connected to these terminals for processing the input values. The battery management system 20 may also control ON / OFF of the switching unit 14, for example, a relay or a contactor, and may be connected to the battery modules 10 to monitor the state of each of the battery modules 10. According to an embodiment, the battery management system 20 may include the battery management device 100 of FIG. 3. According to another embodiment, the battery management system 20 may be another system different from the battery management device 100 of FIG. 2. That is, the battery management device 100 of FIG. 3 may be included in the battery pack 1, or may be configured as another device outside the battery pack 1.

[0029] The upper controller 2 can transmit a control signal for the battery module 10 to the battery management system 20. Thus, the operation of the battery management system 20 can be controlled based on the signal applied from the upper controller 2.

[0030] FIG. 2 is a diagram illustrating a vehicle including a battery management device according to one embodiment disclosed herein. 2, a battery management device according to an embodiment disclosed herein (e.g., the battery management device 100 in FIG. 3) can be included in a vehicle 4. For example, the vehicle 4 can include a transportation means capable of including a battery, such as a one-wheeled vehicle, a two-wheeled vehicle, a three-wheeled vehicle, a four-wheeled vehicle, an electric car, an electric bicycle, a truck, a bus, or the like.

[0031] The charger 3 can charge a battery of the vehicle 4. For example, the charger 3 can be coupled to the vehicle 4 via a charging cable 5 and can charge the vehicle 4.

[0032] According to the embodiment, the charger 3 may continue to supply power even when charging of the vehicle 4 is completed. For example, when charging of the vehicle 4 is completed, the charger 3 may supply power for a fire monitor. As another example, when charging of the vehicle 4 is completed, the charger 3 may supply a minimum amount of power for a fire monitor of the vehicle 4.

[0033] FIG. 3 is a block diagram illustrating a battery management device according to one embodiment disclosed herein. 3, a battery management device 100 according to an embodiment disclosed herein may include a sensor 110 and a controller 120. According to an embodiment, the battery management device 100 may be included in the vehicle 4 of FIG. 2. According to an embodiment, the battery management device 100 may be included in the BMS 20 of FIG. 1, or may be another device different from the BMS 20 of FIG. 1.

[0034] The sensor 110 can generate information regarding the occurrence of a fire. For example, the sensor 110 can detect at least one of temperature, gas, voltage deviation between battery cells, the presence or absence of light, overvoltage, and overcurrent. As another example, the sensor 110 can include at least one of a voltage detection sensor, a current detection sensor, a thermistor, a temperature sensor, a light detection sensor, and a gas sensor.

[0035] According to an embodiment, the sensor 110 can detect at least one of the following: electrolyte leakage, insulation breakdown, two-wire ground fault, and pouch damage. According to another embodiment, the sensor 110 can sense at least one of gas, pressure, current, insulation resistance, temperature, and light emission of the battery, and generate information regarding the occurrence of a fire based on the sensed information.

[0036] The controller 120 can control the charging of the battery based on the power source for charging the battery supplied from the charger. For example, the controller 120 can control the charging of the battery based on state information such as the voltage, current, and SOC of the battery.

[0037] When charging of the battery is completed, the controller 120 can monitor information regarding the occurrence of a fire based on the power source for the fire monitor supplied from the charger. For example, when charging of the battery is completed, the controller 120 can maintain an operation mode (or a monitor mode) based on the power source supplied to the vehicle, and in the operation mode, the controller 120 can monitor information regarding the occurrence of a fire. For example, the operation mode may be a mode in which the function of the battery management device 100 can be performed. As another example, the opposite of the operation mode may be a sleep mode, and when the controller 120 enters the sleep mode, the controller 120 may not perform any function.

[0038] The controller 120 can determine whether or not a fire has occurred based on the monitoring results. For example, the controller 120 can determine that a fire has occurred in at least one of the following cases based on information regarding the occurrence of a fire in the vehicle acquired as the monitoring results: when the temperature increases to a set value or more, when light is emitted to a set value or more, when gas is emitted to a set value or more, when an overvoltage is generated to a set value or more, when an overcurrent is generated to a set value or more, and when a voltage deviation between battery cells is a set value or more.

[0039] The controller 120 may control other devices inside the vehicle to perform an operation to prevent a fire based on whether or not a fire has occurred. For example, the controller 120 may control other devices inside the vehicle to perform at least one of a forced vent operation, a rapid cooling operation, and an operation to extinguish a fire using a water nozzle. As another example, when a fire is expected to occur, the controller 120 may shut down all systems inside the vehicle to prevent the fire from progressing to a fire in the vehicle. According to an embodiment, the controller 120 may determine whether or not a fire has occurred in the vehicle and control other devices inside the vehicle to perform an operation to prevent a fire in the vehicle.

[0040] When the controller 120 determines that a fire has occurred, the controller 120 may store information about the fire in a charger (e.g., the charger 2 in FIG. 2) or the battery management device 100. For example, when the controller 120 determines that a fire has occurred, the controller 120 may store information about the fire collected by the sensor 110 in the battery management device 100 or the charger in order to prevent data loss in the event of a fire. Depending on the embodiment, the controller 120 may transmit information about the fire to an external server (e.g., the upper controller 2 in FIG. 1).

[0041] According to the embodiment, the controller 120 can receive a minimum amount of power from a charger (eg, the charger 3 in FIG. 2) for determining whether or not a fire has occurred.

[0042] When charging of the battery is completed, the controller 120 may check whether or not the connection with the charger has been released. For example, when it is determined that the connection with the charger has not been released, the controller 120 may request the charger to supply power for the fire monitor, and may receive power for the fire monitor from the charger. As another example, when it is determined that the connection with the charger has been released, the controller 120 may switch to a sleep mode. According to an embodiment, when the connection with the charger is released, the user of the vehicle is present at the site, so the controller 120 may switch to a sleep mode to prevent the battery from being discharged.

[0043] The battery management device 100 according to an embodiment disclosed herein may further include a display 130 . The display 130 may receive user input. For example, the display 130 may provide a user interface that allows a user to set whether or not to switch the battery management device 100 to a sleep mode.

[0044] According to an embodiment, the display 130 can provide a user interface that allows a user to set whether to switch the battery management unit 100 to a sleep mode or to keep the battery management unit 100 in an operating mode when charging is complete.

[0045] The controller 120 may receive a user command for activating or deactivating the fire monitor function. For example, the controller 120 may receive a user command from the display 130.

[0046] The controller 120 may determine whether to activate the fire monitoring function based on a user command. For example, if the battery charging is completed while the fire monitoring function is activated by a first user command, the controller 120 may monitor information regarding a fire occurrence based on a power source for the fire monitor after the charging is completed. As another example, if the battery charging is completed while the fire monitoring function is deactivated by a second user command, the controller 120 may switch to a sleep mode after the charging is completed.

[0047] FIG. 4 is a diagram illustrating an example display of a battery management device according to one embodiment disclosed herein. 4, the user interface 40 of the battery management device 100 according to an embodiment disclosed herein may provide a button 45 that can be set to remain in the operation mode (or the monitor mode). For example, the battery management device 100 may receive a user command for activating or deactivating a fire monitor function via the display.

[0048] According to an embodiment, via the configurable button 45 for whether to remain in operating mode, the user can select whether to keep the battery management device 100 in operating mode or switch to sleep mode when charging of the vehicle is completed.

[0049] According to an embodiment, the battery management unit 100 can receive a user command via the button 45 to activate or deactivate the fire monitor function. Depending on the embodiment, the mode of operation may be referred to as a monitor mode.

[0050] FIG. 5 is a flow chart illustrating a method of operation of a battery management device according to one embodiment disclosed herein. Referring to FIG. 5, an operating method of the battery management device 100 according to one embodiment disclosed in this document may include a step of generating information regarding a fire occurrence (S110), a step of controlling battery charging based on a power source for charging the battery supplied from the charger (S120), and when battery charging is completed, a step of monitoring information regarding a fire occurrence based on a power source for a fire monitor supplied from the charger (S130), and a step of determining whether or not a fire has occurred based on the monitoring result (S140).

[0051] In the step of generating information on the occurrence of a fire (S110), the sensor 110 can generate information on the occurrence of a fire. For example, the sensor 110 can detect at least one of temperature, gas, voltage deviation between battery cells, the presence or absence of light, overvoltage, and overcurrent, and can generate information on the occurrence of a fire based on the detected information. As another example, the sensor 110 can include at least one of a voltage detection sensor, a current detection sensor, a thermistor, a temperature sensor, a light detection sensor, and a gas sensor.

[0052] In the step (S120) of controlling the charging of the battery based on the power source for charging the battery supplied from the charger, the controller 120 can control the charging of the battery based on the power source for charging the battery supplied from the charger.

[0053] In a step (S130) of monitoring information regarding a fire occurrence based on the power supply for the fire monitor supplied from the charger when the charging of the battery is completed, the controller 120 can monitor information regarding a fire occurrence based on the power supply for the fire monitor supplied from the charger when the charging of the battery is completed. For example, the controller 120 can monitor information regarding a fire occurrence generated from the sensor 110 based on the minimum power supply for the fire monitor supplied from the charger.

[0054] In the step of determining whether or not a fire has occurred based on the monitoring results (S140), the controller 120 can determine whether or not a fire has occurred based on the monitoring results. For example, the controller 120 can determine that a fire has occurred in the vehicle based on the information regarding the occurrence of a fire in the vehicle when at least one of the following occurs: the temperature increases to a set value or more, the light is generated to a set value or more, the gas is generated to a set value or more, the overvoltage is generated to a set value or more, the overcurrent is generated to a set value or more, and the voltage deviation between the battery cells is a set value or more.

[0055] 6 to 8 are flowcharts specifically illustrating an operation method of the battery management device according to an embodiment disclosed in this document. 6, according to an embodiment disclosed herein, a method of operating a battery management device 100 included in a vehicle that receives power for a fire monitor from a charger when charging is completed may further include a step (S210) of controlling other devices in the vehicle to perform an operation for preventing a fire based on whether a fire has occurred, and a step (S220) of storing information about the fire in the charger or the battery management device when it is determined that a fire has occurred. According to an embodiment, the method of operating the battery management device 100 may further include at least one of steps S210 and S220.

[0056] In the step (S210) of controlling other devices inside the vehicle to perform an operation for preventing a fire based on whether or not a fire has occurred, the controller 120 may control other devices inside the vehicle to perform an operation for preventing a fire based on whether or not a fire has occurred. For example, the controller 120 may control other devices inside the vehicle to perform at least one of a forced vent operation, a rapid cooling operation, and an operation for extinguishing a fire using a water nozzle. As another example, when a fire is expected to occur, the controller 120 may shut down all systems inside the vehicle to prevent the vehicle from catching fire.

[0057] When it is determined that a fire has occurred, in a step (S220) of storing information about the fire in a charger or a battery management device, the controller 120 may store the information about the fire in a charger (e.g., the charger 2 in FIG. 2) or the battery management device 100. For example, when it is determined that a fire has occurred, the controller 120 may store the information about the fire collected by the sensor 110 in the battery management device 100 or the charger in order to prevent data loss in the event of a fire. According to an embodiment, the controller 120 may transmit the information about the fire to an external server (e.g., the upper controller 2 in FIG. 1).

[0058] Referring to FIG. 7, the operating method of the battery management device 100 according to one embodiment disclosed in this document may further include a step (S310) of checking whether or not the connection with the charger is disconnected when the battery charging is completed, and a step (S320, S330) of requesting the charger to supply power for the fire monitor, receiving power for the fire monitor from the charger, or switching to a sleep mode when it is confirmed that the connection with the charger has been disconnected.

[0059] In the step of checking whether the connection with the charger is to be released when the charging of the battery is completed (S310), the controller 120 may check whether the connection with the charger is to be released when the charging of the battery is completed. For example, if there is energy transferred from the charger, the controller 120 may check that the connection with the charger is not released, and if there is no energy transferred from the charger, the controller 120 may check that the connection with the charger is released.

[0060] If it is determined that the connection with the charger has not been released, in S320, the controller 120 may request the charger to supply power for the fire monitor, and may receive power for the fire monitor from the charger. For example, the controller 120 may receive a minimum amount of power for the fire monitor from the charger. If it is determined that the charger has been disconnected, the controller 120 may switch to a sleep mode in S330.

[0061] Referring to FIG. 8, an operating method of the battery management device 100 according to one embodiment disclosed in this document may further include a step of receiving a user command for activating or deactivating a fire monitoring function (S410), a step of confirming activation or deactivation of the monitoring function (S420), a step of monitoring information regarding a fire outbreak based on a power source for the fire monitoring after charging is completed when battery charging is completed while the fire monitoring function is activated by a first user command (S430), and a step of switching to a sleep mode after charging is completed when battery charging is completed while the fire monitoring function is deactivated by a second user command (S440).

[0062] In the step of receiving a user command for activating or deactivating the fire monitor function (S410), the controller 120 may receive a user command for activating or deactivating the fire monitor function. For example, the controller 120 may receive a user command received from the display 130.

[0063] In the step of confirming activation or deactivation of the monitoring function (S420), the controller 120 can confirm activation or deactivation of the monitoring function based on a user command.

[0064] If a user input (e.g., a first user command) to activate the monitor function is received, in S430, the controller 120 can monitor information regarding a fire occurrence based on the power source for the fire monitor after the battery charging is completed while the fire monitor function is activated.

[0065] If a user input (e.g., a second user command) to deactivate the monitoring function is received, in S440, the controller 120 may switch to a sleep mode after charging is completed if battery charging is completed while the fire monitoring function is deactivated.

[0066] FIG. 9 is a block diagram showing a hardware configuration of a computing system for performing the method of operating a battery management device according to an embodiment disclosed herein.

[0067] Referring to FIG. 9, a computing system 1000 according to one embodiment disclosed in this document may include an MCU 1010, a memory 1020, an input / output I / F 1030, and a communication I / F 1040.

[0068] The MCU 1010 may be a processor that executes various programs (e.g., a battery pack voltage or current collection program, a relay control program, a battery fire detection program, etc.) stored in the memory 1020, processes various information including the battery pack voltage, temperature, and whether or not a fire has occurred through such programs, and performs the functions of the battery management device shown in Figure 2 described above.

[0069] The memory 1020 can store various programs related to the collection and diagnosis of battery log information, and can also store various information such as the battery current, voltage, battery pack voltage, and temperature.

[0070] A plurality of such memories 1020 may be provided as necessary. The memory 1020 may be a volatile memory or a non-volatile memory. The memory 1020 as a volatile memory may be a RAM, a DRAM, an SRAM, or the like. The memory 1020 as a non-volatile memory may be a ROM, a PROM, an EAROM, an EPROM, an EEPROM, a flash memory, or the like. The examples of the memory 1020 listed above are merely illustrative and are not limited to these examples.

[0071] The input / output I / F 1030 can provide an interface that connects input devices (not shown) such as a keyboard, mouse, or touch panel, and output devices such as a display (not shown), to the MCU 1010 to enable data transmission and reception.

[0072] The communication I / F 1040 is configured to be able to transmit and receive various data to and from a server, and may be any of various devices capable of supporting wired or wireless communication. For example, the battery management device can transmit and receive information such as a relay control program, the voltage, current, and temperature of various battery packs, and whether or not a fire has occurred, from a separately provided external server via the communication I / F 1040.

[0073] In this manner, a computer program according to one embodiment disclosed in this document may be recorded in memory 1020 and processed by MCU 1010 to be realized, for example, as a module performing each function shown in FIG. 3.

[0074] The above description is merely an illustrative example of the technical ideas disclosed in this document, and various modifications and variations may be made by a person having ordinary skill in the art to which the embodiments disclosed in this document pertain without departing from the essential characteristics of the embodiments disclosed in this document.

[0075] Therefore, the embodiments disclosed in this document are intended to explain, not to limit, the technical ideas disclosed in this document, and such embodiments do not limit the scope of the technical ideas disclosed in this document. The scope of protection of the technical ideas disclosed in this document should be interpreted according to the claims below, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of rights of this document.

Claims

1. A battery management device, comprising: A sensor for generating information regarding the occurrence of a fire; Controlling charging of the battery based on a power source for charging the battery provided by a charger; a controller that monitors information regarding a fire occurrence based on a power source for a fire monitor supplied from the charger when charging of the battery is completed, and determines whether a fire has occurred based on a result of the monitoring; A battery management device comprising:

2. The controller: The battery management device according to claim 1 , further comprising: a control unit configured to control another device inside the vehicle so as to perform an operation for preventing a fire based on the occurrence or nonoccurrence of the fire.

3. The controller:

3. The battery management device according to claim 1, wherein when it is determined that a fire has occurred, information relating to the fire is stored in the charger or the battery management device.

4. The controller:

3. The battery management device according to claim 1, further comprising: a battery charger that supplies a minimum amount of power required for determining whether or not a fire has occurred.

5. The controller: When the charging of the battery is completed, it is checked whether the connection with the charger is to be disconnected. If it is confirmed that the connection with the charger has not been released, a request is made to the charger to supply power to the fire monitor; 3. The battery management device according to claim 1, wherein the fire monitor is supplied with power from the charger.

6. The controller: The battery management device of claim 5 , wherein the battery management device is configured to switch to a sleep mode when it is confirmed that the connection with the charger is released.

7. The controller: receiving a user command for activating or deactivating a function of the fire monitor; When charging of the battery is completed while the function of the fire monitor is activated by a first user command, monitor information regarding the occurrence of a fire based on a power source for the fire monitor; 3. The battery management device according to claim 1, further comprising: a second user command that switches to a sleep mode if the charging of the battery is completed while the function of the fire monitor is inactivated.

8. A method of operating a battery management device, comprising: generating information regarding a fire outbreak; controlling charging of the battery based on a power source for charging the battery provided by a charger; When charging of the battery is completed, monitoring information regarding the occurrence of a fire based on a power supply for a fire monitor supplied from the charger; determining whether or not a fire has occurred based on the results of the monitoring; A method of operating a battery management device, comprising:

9. The method for operating a battery management device according to claim 8 , further comprising the step of controlling other devices inside the vehicle to perform an operation for preventing a fire based on the occurrence or non-occurrence of a fire.

10. The method for operating a battery management device according to claim 8 or 9, further comprising the step of, when it is determined that a fire has occurred, storing information about the fire in the charger or the battery management device.

11. when charging of the battery is completed, determining whether or not the connection with the charger should be released; If it is confirmed that the connection with the charger has not been released, the charger is requested to supply power for the fire monitor, and the charger supplies power for the fire monitor, or The method of claim 8 or 9, further comprising: switching to a sleep mode when it is confirmed that the connection with the charger is released.

12. receiving a user command for activating or deactivating a function of the fire monitor; When the charging of the battery is completed while the function of the fire monitor is activated by a first user command, monitor information regarding the occurrence of the fire based on a power source for the fire monitor; or The method of claim 8 or 9, further comprising the step of: switching to a sleep mode when charging of the battery is completed while the function of the fire monitor is inactivated by a second user command.

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