Patent Application
20250170917
Embodiments disclosed herein relate to a battery management apparatus and an operating method thereof.
Recently, research and development of secondary batteries have been actively performed. Herein, the secondary batteries, which are chargeable/dischargeable batteries, may include all of conventional nickel (Ni)/cadmium (Cd) batteries, Ni/metal hydride (MH) batteries, etc., and recent lithium-ion batteries. Among the secondary batteries, a lithium-ion battery has a much higher energy density than those of the conventional Ni/Cd batteries, Ni/MH batteries, etc. Moreover, the lithium-ion battery may be manufactured to be small and lightweight, such that the lithium-ion battery has been used as a power source of mobile devices, and recently, a use range thereof has been extended to power sources for electric vehicles, attracting attention as next-generation energy storage media.
When charging a battery included in a vehicle, a user is often absent while connecting a connector to the vehicle. After completion of battery charge, all devices inside the vehicle enter a sleep mode after a preset time to prevent the vehicle from being discharged, making it difficult to collect data in case of occurrence of ignition inside the vehicle or take measures to prevent ignition.
Embodiments disclosed herein aim to provide a battery management apparatus and an operating method thereof in which in case of occurrence of ignition inside a vehicle after completion of vehicle charge, an operation of detecting and preventing ignition may be performed.
Embodiments disclosed herein aim to provide a battery management apparatus and an operating method thereof in which after completion of vehicle charge, minimum power may be supplied from a charging connector to enable constant monitoring of ignition inside the vehicle.
Technical problems of the embodiments disclosed herein are not limited to the above-described technical problems, and other unmentioned technical problems would be clearly understood by one of ordinary skill in the art from the following description.
A battery management apparatus according to an embodiment disclosed herein includes a sensor configured to detect information about occurrence of fire and a controller configured to control charging of a battery based on power for charging the battery, received from a charger, monitor information about occurrence of the fire based on power for monitoring the fire, received from the charger, upon completion of the charging of the battery, and determine the occurrence of the fire based on a monitoring result.
In an embodiment, the controller may be further configured to control a device inside the vehicle to extinguish the fire in response to the determination of the occurrence of the fire.
In an embodiment, the controller may be further configured to store information about the occurrence of the fire in the charger or the battery management apparatus in response to the occurrence of the fire.
In an embodiment, the controller may be further configured to receive a minimum power for monitoring the fire to determine the occurrence of the fire from the charger.
In an embodiment, the controller may be further configured to determine whether a connection with the charger is released, upon completion of the charging of the battery, request supply of the power for monitoring the occurrence of the fire to the charger in response to the connection with the charger not being released, and receive the power for monitoring the fire from the charger.
In an embodiment, the controller may be further configured to switch to a sleep mode in response to the connection with the charger being released. In an embodiment, the controller may be further configured to receive a user command for an activation or deactivation of a fire monitoring function, upon completion of the charging of the battery during the activation of the fire monitoring function in response to the first user command, monitor information about occurrence of the fire based on the power for the monitoring the occurrence of the fire after completion of the charging, and upon completion of the charging of the battery during the deactivation of the fire monitoring function in response to the user command, switch to a sleep mode after the completion of the charging.
An operating method of a battery management apparatus according to an embodiment disclosed herein includes detecting information about occurrence of fire, controlling a charging of the battery based on power for charging the battery, received from a charger, monitoring information about occurrence of the fire, based on power for monitoring the occurrence of the fire, received from the charger, upon completion of the charging of the battery, and determining the occurrence of the fire, based on a monitoring result.
In an embodiment, the operating method may further include controlling a device inside the vehicle to extinguish the fire, in response to the determination of the occurrence of the fire.
In an embodiment, the operating method may further include storing information about the occurrence of the fire in the charger or the battery management apparatus in response to the occurrence of the fire.
In an embodiment, the operating method may further include determining whether a connection with the charger is released, upon completion of the charging of the battery and requesting supply of the power for monitoring the occurrence of the fire to the charger in response to the connection with the charger not being released, and receiving power for monitoring the fire from the charger or switching to a sleep mode in response to the connection with the charger being released.
In an embodiment, the operating method may further include receiving a user command for an activation or deactivation of a fire monitoring function and upon completion of the charging of the battery during the activation of the fire monitoring function in response to the user command, monitoring information about occurrence of the fire based on the power for the monitoring the occurrence of the fire after completion of the charging or upon completion of the charging of the battery during the deactivation of the fire monitoring function in response to the user command, switching to a sleep mode after the completion of the charging.
A battery management apparatus and an operating method thereof according to an embodiment disclosed herein may detect ignition inside a vehicle and perform a required operation because there is no need to enter a sleep mode even when charge of the vehicle is completed.
A battery management apparatus and an operating method thereof according to an embodiment disclosed herein may constantly monitor a state of the vehicle after completion of charge of the vehicle to collect data in case of occurrence of ignition inside the vehicle, thereby fundamentally analyzing a cause for the ignition.
A battery management apparatus and an operating method thereof according to an embodiment disclosed herein may receive minimum power from the charger after completion of the charge of the vehicle to maintain an operation mode without entering the sleep mode, thereby detecting in advance a cause for ignition inside the vehicle and taking measures to the ignition.
A battery management apparatus and an operating method thereof according to an embodiment disclosed herein may provide, to the user, a user interface for selecting whether to enter the sleep mode or maintain the operation mode to the user after completion of the charge of the vehicle, thereby allowing the user to make selection.
Moreover, various effects recognized directly or indirectly from the disclosure may be provided.
Hereinafter, embodiments disclosed in this document will be described in detail with reference to the exemplary drawings. In adding reference numerals to components of each drawing, it should be noted that the same components are given the same reference numerals even though they are indicated in different drawings. In addition, in describing the embodiments disclosed in this document, when it is determined that a detailed description of a related known configuration or function interferes with the understanding of an embodiment disclosed in this document, the detailed description thereof will be omitted.
To describe a component of an embodiment disclosed herein, terms such as first, second, A, B, (a), (b), etc., may be used. These terms are used merely for distinguishing one component from another component and do not limit the component to the essence, sequence, order, etc., of the component. The terms used herein, including technical and scientific terms, have the same meanings as terms that are generally understood by those skilled in the art, as long as the terms are not differently defined. Generally, the terms defined in a generally used dictionary should be interpreted as having the same meanings as the contextual meanings of the relevant technology and should not be interpreted as having ideal or exaggerated meanings unless they are clearly defined in the present application.
Referring to
As shown in
Herein, as the switching unit 14 which is an element for controlling a current flow for charging or discharging of the plurality of battery modules 10, for example, at least one relay, magnetic contactor, etc., may be used according to specifications of the battery pack 1.
The battery management system 20, which is an interface for receiving measurement values of the above-described various parameter values, may include a plurality of terminals and a circuit, etc., connected thereto to process input values. The battery management system 20 may control on/off of the switching unit 14, e.g., a relay, a contactor, etc., and may be connected to the battery module 10 to monitor the state of each battery module 10. According to an embodiment, the battery management system 20 may include a battery management apparatus 100 of
The higher-level controller 2 may transmit a control signal regarding the battery module 10 to the battery management system 20. Thus, the battery management system 20 may also be controlled in terms of an operation thereof based on a signal applied from the higher-level controller 2.
Referring to
The charger 3 may charge a battery of the vehicle 4. For example, the charger 3 may be connected to the vehicle 4 through a charging cable 5, and charge the vehicle 4.
Depending on an embodiment, the charger 3 may continuously supply power when the vehicle 4 is completely charged. For example, the vehicle 4 may receive power for monitoring fire from the charger 3 upon completion of charge. In another example, the vehicle 4 may receive minimum power for monitoring the fire of the vehicle 4 from the charger 3.
Referring to
The sensor 110 may generate information about occurrence of the fire. For example, the sensor 110 may detect at least any one of temperature, gas, voltage deviation between battery cells, generation of light, and over-voltage and over-current. In another example, the sensor 110 may include at least any one of a voltage detecting sensor, a current detecting sensor, a thermistor, a temperature sensor, a light detecting sensor, and a gas sensor.
Depending on an embodiment, the sensor 110 may detect at least any one of battery electrolyte leakage, insulation breakdown, 2 line-to-ground fault, and pouch tear. According to another embodiment, the sensor 110 may sense at least any one of gas, pressure, current, insulating resistance, temperature, and light emission of a battery and generate information about occurrence of fire based on sensed information.
The controller 120 may control charge of the battery based on power for charging the battery, supplied from the charger. For example, the controller 120 may control charge of the battery based on state information such as voltage, current, SoC, etc., of the battery.
The controller 120 may monitor the information about occurrence of the fire, based on power for monitoring the fire, supplied from the charger, upon completion of the charge of the battery. For example, the controller 120 may maintain an operation mode (or a monitoring mode) based on power supplied to the vehicle upon completion of the charge of the battery, and the controller 120 may monitor the information about occurrence of the fire in the operation mode. For example, the operation mode may be a mode where a function of the battery management apparatus 100 may be performed. In another example, the opposite of the operation mode may be the sleep mode, and when the controller 120 enters the sleep mode, the function of the controller 120 may not be performed.
The controller 120 may determine whether the fire occurs, based on a monitoring result. For example, the controller 120 may determine, based on the information about occurrence of the fire, obtained as the monitoring result, that the fire occurs, in at least any one case of when a temperature increases above a set value, when generated light is generated above a set value, when gas is generated above a set value, over-voltage occurs above a set value, and when a voltage deviation between battery cells is a set value or higher.
The controller 120 may control another internal device to perform an operation for preventing the fire, based on whether the fire occurs. For example, the controller 120 may control another device inside the vehicle to perform at least any one of a forced vent operation, a fast cooling operation, and an operation of extinguishing the fire through a water nozzle. In another example, the controller 120 may prevent ignition of the vehicle by shutting down all systems inside the vehicle when the fire is expected to occur. Depending on an embodiment, the controller 120 may determine whether the fire occurs and control another device inside the vehicle to perform an operation for preventing the fire of the vehicle.
The controller 120 may store the information about the fire in a charger (e.g., the charger 2 of
Depending on an embodiment, the controller 120 may receive minimum power for determining whether the fire occurs from a charger (e.g., the charger 3 of
The controller 120 may determine whether connection with the charger is released, upon completion of charge of the battery. For example, when determining that connection with the charger is not released, the controller 120 may request supply of power for monitoring the fire to the charger and receive power for monitoring the fire from the charger. In another example, when determining that connection with the charger is released, the controller 120 may switch to the sleep mode. According to an embodiment, when connection with the charger is released, it means that a user of the vehicle is present in the field, such that the controller 120 may switch to the sleep mode to prevent the battery from being discharged.
The battery management apparatus 100 according to an embodiment disclosed herein may further include a display 130.
The display 130 may receive a user input. For example, the display 130 may provide a user interface to the user to allow the user to set whether to switch the battery management apparatus 100 to the sleep mode.
Depending on an embodiment, the display 130 may provide a user interface to the user to allow the user to set whether to switch the battery management apparatus 100 to the sleep mode or maintain the battery management apparatus 100 in the operation mode, when charge is completed.
The controller 120 may receive a user command for activating or deactivating a fire monitoring function. For example, the controller 120 may receive a user command from the display 130.
The controller 120 may determine whether to activate the fire monitoring function based on the user command. For example, upon completion of the charge of the battery during activation of the fire monitoring function in response to a first user command, the controller 120 may monitor the information about occurrence of the fire based on the power for monitoring the fire after completion of the charge. In another example, upon completion of the charge of the battery during deactivation of the fire monitoring function in response to a second user command, the controller 120 may switch to the sleep mode after completion of the charge.
Referring to
Depending on an embodiment, through the button 45 for setting whether to maintain the operation mode, the user may select whether to maintain the battery management apparatus 100 in the operation mode or switch the battery management apparatus 100 to the sleep mode when charge of the battery is completed.
Depending on an embodiment, the battery management apparatus 100 may receive a user command for activating or deactivating the fire monitoring function through the button 45.
Depending on an embodiment, the operation mode may be referred to as the monitoring mode.
Referring to
In operation S110 of generating the information about occurrence of the fire, the sensor 110 may sense generate the information about occurrence of the fire. For example, the sensor 110 may detect at least any one of temperature, gas, voltage deviation between battery cells, generation of light, and over-voltage and over-current, and generate the information about occurrence of the fire based on the detected information. In another example, the sensor 110 may include at least any one of a voltage detecting sensor, a current detecting sensor, a thermistor, a temperature sensor, a light detecting sensor, and a gas sensor.
In operation S120 of controlling charge of the battery based on the power for charging the battery, supplied from the charger, the controller 120 may control charge of the battery based on the power for charging the battery, supplied from the charger.
In operation S130 of monitoring the information about occurrence of the fire, based on power for monitoring the fire, supplied from the charger, upon completion of the charge of the battery, the controller 120 may monitor the information about occurrence of the fire based on the power for monitoring the fire, supplied from the charger, upon completion of the charge of the battery. For example, the controller 120 may monitor the information about occurrence of the fire, generated from the sensor 110, based on minimum power for monitoring the fire, supplied from the charger.
In operation S140 of determining whether the fire occurs based on the monitoring result, the controller 120 may determine whether the fire occurs based on the monitoring result. For example, the controller 120 may determine, based on the information about occurrence of the fire, that the fire occurs in the vehicle, in at least any one case of when a temperature increases above a set value, when generated light is generated above a set value, when gas is generated above a set value, over-voltage occurs above a set value, and when a voltage deviation between battery cells is a set value or higher.
Referring to
In operation S210 of controlling another device inside the vehicle to perform an operation for preventing the fire based on whether the fire occurs, the controller 120 may control another device inside the vehicle to perform an operation for preventing the fire, based on whether the fire occurs. For example, the controller 120 may control another device inside the vehicle to perform at least any one of a forced vent operation, a fast cooling operation, and an operation of extinguishing the fire through a water nozzle. In another example, the controller 120 may prevent ignition of the vehicle by shutting down all systems inside the vehicle when the fire is expected to occur.
In operation S220 of storing the information about the fire in the charger or the battery management apparatus when determining that the fire occurs, the controller 120 may store the information about the fire in the charger (e.g., the harger 2 of
Referring to
In operation S310 of determining whether connection with the charger is released upon completion of the charge of the battery, the controller 120 may determine whether connection with the charger is released upon completion of the charge of the battery. For example, when energy delivered from the charger exists, the controller 120 may determine that connection with the charger is not released, and when there is no energy delivered from the charger, the controller 120 may determine that connection with the charger is released.
When determining that connection with the charger is not released, the controller 120 may request supply of power for monitoring the fire to the charger and receive power for monitoring the fire from the charger, in operation S320. For example, the controller 120 may receive minimum power for monitoring the fire from the charger.
When determining that connection with the charger is released, the controller 120 may switch to the sleep mode in operation S330.
Referring to
In operation S410 of receiving the user command for activating or deactivating the fire monitoring function, the controller 120 may receive a user command for activating or deactivating the fire monitoring function. For example, the controller 120 may receive a user command received from the display 130.
In operation S420 of determining activation or deactivation of the monitoring function, the controller 120 may determine activation or deactivation of the monitoring function based on a user command.
When the user input (e.g., the first user command) for activating the monitoring function is received, in operation S430, upon completion of the charge of the battery during activation of the fire monitoring function, the controller 120 may monitor the information about occurrence of the fire based on the power for monitoring the fire after completion of the charge.
When the user input (e.g., the second user command) for deactivating the monitoring function is received, in operation S440, upon completion of the charge of the battery during deactivation of the fire monitoring function, the controller 120 may switch to the sleep mode after completion of the charge.
Referring to
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 a voltage, a temperature, occurrence of fire, etc., of a battery pack through these programs, and executes the above-described functions of the battery management apparatus shown in
The memory 1020 may store various programs regarding log information collection and diagnosis of the battery, etc. The memory 1020 may store various information such as a current and a voltage of the battery, and a voltage, a temperature, etc., of the battery pack.
The memory 1020 may be provided in plural, depending on a need. The memory 1020 may be volatile memory or non-volatile memory. For the memory 1020 as the volatile memory, random access memory (RAM), dynamic RAM (DRAM), static RAM (SRAM), etc., may be used. For the memory 1020 as the nonvolatile memory, read only memory (ROM), programmable ROM (PROM), electrically alterable ROM (EAROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), flash memory, etc., may be used. The above-listed examples of the memory 1020 are merely examples and are not limited thereto.
The input/output I/F 1030 may provide an interface for transmitting and receiving data by connecting an input device (not shown) such as a keyboard, a mouse, a touch panel, etc., and an output device such as a display (not shown), etc., to the MCU 1010.
The communication I/F 1040, which is a component capable of transmitting and receiving various data to and from a server, may be various devices capable of supporting wired or wireless communication. For example, the battery management apparatus may transmit and receive a relay control program or information such as a voltage, a current, a temperature, and occurrence of fire of various battery packs from an external server separately provided through the communication I/F 1040.
As such, a computer program according to an embodiment disclosed herein may be recorded in the memory 1020 and processed by the MCU 1010, thus being implemented as a module that performs functions shown in
The above description is merely illustrative of the technical idea of the present disclosure, and various modifications and variations will be possible without departing from the essential characteristics of embodiments of the present disclosure by those of ordinary skill in the art to which the embodiments disclosed herein pertains.
Therefore, the embodiments disclosed herein are intended for description rather than limitation of the technical spirit of the embodiments disclosed herein and the scope of the technical spirit of the present disclosure is not limited by these embodiments disclosed herein. The protection scope of the technical spirit disclosed herein should be interpreted by the following claims, and all technical spirits within the same range should be understood to be included in the range of the present disclosure.
| Number | Date | Country | Kind |
|---|---|---|---|
| 10-2022-0019799 | Feb 2022 | KR | national |
The present application is a national phase entry under 35 U.S.C. § 371 of International Application No. PCT/KR2022/018970 filed Nov. 28, 2022, which claims priority from Korean Patent Application No. 10-2022-0019799 filed in the Korean Intellectual Property Office on Feb. 15, 2022, the entire contents of which are incorporated herein by reference.
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/KR2022/018970 | 11/28/2022 | WO |
