WO2025023490A1 - 배터리 시스템 및 배터리 시스템의 운영 방법 - Google Patents
배터리 시스템 및 배터리 시스템의 운영 방법 Download PDFInfo
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- WO2025023490A1 WO2025023490A1 PCT/KR2024/007839 KR2024007839W WO2025023490A1 WO 2025023490 A1 WO2025023490 A1 WO 2025023490A1 KR 2024007839 W KR2024007839 W KR 2024007839W WO 2025023490 A1 WO2025023490 A1 WO 2025023490A1
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- battery
- refrigerant circulation
- main
- power supply
- refrigerant
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
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- B60L1/003—Supplying electric power to auxiliary equipment of vehicles to auxiliary motors, e.g. for pumps, compressors
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- B60L58/20—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having different nominal voltages
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- B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
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- H01M10/65—Means for temperature control structurally associated with the cells
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Definitions
- the present invention relates to a battery system and a method of operating the battery system.
- Secondary batteries are batteries that can be reused by charging even after discharge, and can be used as an energy source for small devices such as mobile phones, tablet PCs, and vacuum cleaners, and are also used as an energy source for medium and large devices such as automobiles and ESS (Energy Storage Systems) for smart grids.
- ESS Electronicgy Storage Systems
- Secondary batteries are applied to the system in the form of assemblies such as battery modules in which a number of battery cells are connected in series and parallel, or battery packs in which battery modules are connected in series and parallel, depending on the requirements of the system.
- assemblies such as battery modules in which a number of battery cells are connected in series and parallel, or battery packs in which battery modules are connected in series and parallel, depending on the requirements of the system.
- battery packs in which battery modules are connected in series and parallel, depending on the requirements of the system.
- a high-capacity battery system in which a number of battery packs are connected in parallel can be applied to satisfy the required capacity of the device.
- the present invention provides a battery system capable of improving the temperature stability of a battery even when an abnormal condition occurs.
- the present invention provides a method of operating such a battery system.
- a battery system is a battery system positioned in an electric vehicle, which may include: a main battery; a battery management device that controls power supply by the main battery to be cut off when an abnormality occurs in one or more components included in the electric vehicle; and an auxiliary battery that is provided separately from the main battery and supplies power to one or more components configured in a cooling system for cooling the main battery when the power supply by the main battery is cut off.
- the auxiliary battery may be configured to supply power to a refrigerant circulation unit that circulates refrigerant within a refrigerant circulation path.
- the main battery may be configured to supply power to the cooling system
- the auxiliary battery may be configured to supply power only to the refrigerant circulation unit configured in the cooling system when the power supply by the main battery is cut off.
- the above cooling system may include a refrigerant circulation path through which refrigerant flows; a heat exchange unit that cools the refrigerant; and a refrigerant circulation pump that causes the refrigerant to circulate within the refrigerant circulation path.
- the auxiliary battery may be configured to supply power to the refrigerant circulation pump when the power supply by the main battery is cut off.
- the heat exchange unit may be cut off from the power supply by the main battery.
- the refrigerant circulation pump may operate through the power supplied by the auxiliary battery, thereby allowing the refrigerant to circulate within the refrigerant circulation path without being cooled by the heat exchange unit.
- the above auxiliary battery may be a battery exhibiting an output voltage lower than the output voltage of the main battery.
- the battery management device can switch a main relay arranged on a power supply path on the output side of the main battery from a closed state to an open state, and control one or more components configured in the cooling system to operate through power supplied by the auxiliary battery.
- the above battery management device can diagnose whether an abnormality occurs in the battery system in the driving mode of the electric vehicle or the charging mode of the main battery, and, if an abnormality is detected, control to cut off the power supply by the main battery and control to allow the power supply by the auxiliary battery.
- the above battery management device is activated at preset intervals in the parking mode of the electric vehicle or the sleep mode of the battery system to diagnose whether an abnormality has occurred in the battery system, and if an abnormality has been detected, can control the main battery to maintain a power supply cut-off state and allow power supply by the auxiliary battery.
- the step of controlling to supply power to one or more components configured in the above cooling system may include the step of controlling to supply power to a refrigerant circulation unit, which circulates refrigerant within a refrigerant circulation path.
- the main battery may be configured to supply power to the cooling system, and the auxiliary battery may be configured to supply power only to the refrigerant circulation unit configured in the cooling system when the power supply by the main battery is cut off.
- the cooling system may include a refrigerant circulation path through which refrigerant flows; a heat exchange unit that cools the refrigerant; and a refrigerant circulation pump that allows the refrigerant to circulate within the refrigerant circulation path.
- the step of controlling to supply power to one or more components configured in the cooling system may include a step of controlling the auxiliary battery to supply power to the refrigerant circulation pump.
- the above auxiliary battery may be a battery exhibiting an output voltage lower than the output voltage of the main battery.
- the step of diagnosing whether an abnormality has occurred in the battery system may include a step of diagnosing whether an abnormality has occurred in the battery system in the driving mode of the electric vehicle or the charging mode of the main battery.
- the step of diagnosing whether an abnormality has occurred in the battery system may include a step of diagnosing whether an abnormality has occurred in the battery system by activating at preset intervals in the parking mode of the electric vehicle or the sleep mode of the battery system.
- the cooling system includes a refrigerant circulation path through which refrigerant flows; a heat exchange unit that cools the refrigerant; and a refrigerant circulation pump that causes the refrigerant to circulate within the refrigerant circulation path, and the auxiliary battery may be configured to directly supply power only to the refrigerant circulation pump of the cooling system when the power supply by the main battery is cut off.
- FIG. 1 is a block diagram of a battery system according to an embodiment of the present invention.
- FIG. 2 is a block diagram of a battery system according to another embodiment of the present invention.
- Figure 3 is a reference diagram for explaining a cooling system according to an embodiment of the present invention.
- Figure 4 is a flowchart of an operation method of a battery system according to an embodiment of the present invention.
- FIG. 5 is a flowchart of an operation method of a battery system according to another embodiment of the present invention.
- FIG. 7 is a block diagram of a battery management device according to an embodiment of the present invention.
- first, second, A, B, etc. may be used to describe various components, the components should not be limited by the terms. The terms are only used to distinguish one component from another.
- first component could be referred to as the second component, and similarly, the second component could also be referred to as the first component.
- the term "and/or" includes any combination of a plurality of related listed items or any item among a plurality of related listed items.
- a relay placed on the output side of the battery may be switched to an open state, thereby cutting off the charging and discharging power of the battery.
- a battery cooling system for temperature stability of a battery operates by receiving power from the battery, but when the battery power supply is cut off by opening the relay, the cooling function of the battery is also cut off.
- the present invention proposes an appropriate battery protection technique capable of improving the temperature stability of a battery even when a relay placed on the output side of a battery is switched to an open state and the charge/discharge path is blocked due to an abnormal state of the battery system.
- a battery cell is the smallest unit that stores electricity, and a battery module is a collection of multiple battery cells that are electrically connected.
- a battery pack or battery rack means a system with a minimum single structure that electrically connects module units set by a battery manufacturer and can be monitored and controlled through a BMS (Battery Management System), and may be configured to include multiple battery modules and one BPU (Battery Protection Unit) or protection device.
- BMS Battery Management System
- BPU Battery Protection Unit
- a battery bank may refer to a large-scale battery rack system group that is configured by connecting multiple battery racks in parallel. Monitoring and control of a rack BMS (RBMS) of a battery rack unit can be performed through a BMS of a battery bank unit.
- RBMS rack BMS
- a battery assembly is an assembly that includes a plurality of battery cells that are electrically connected and functions as a power source when applied to a specific system or device.
- the battery assembly may mean a battery module, a battery pack, a battery rack, or a battery bank, but the scope of the present invention is not limited to these entities.
- FIG. 1 and FIG. 2 are block diagrams of a battery system according to an embodiment of the present invention.
- the battery system may be configured to include a main battery (110), an auxiliary battery (120), and a battery management device (200).
- the main battery (110) may be configured to supply power to a power request device (300) located in an electric vehicle.
- the power request device (300) may include a driving device (310) of the electric vehicle and a cooling system (320).
- the power request device (300) may include various components for the operation of the electric vehicle in addition to the driving device (310) and the cooling system (320).
- the cooling system (320) may be configured to include a refrigerant circulation path (321) through which refrigerant flows, a heat exchange unit (322) that cools the refrigerant, and a refrigerant circulation pump (323) that allows the refrigerant to circulate within the refrigerant circulation path (321).
- the auxiliary battery (120) may be configured to supply power to one or more components configured in the cooling system (320).
- the auxiliary battery (120) may be configured to supply power to activate at least some functions of the cooling system (320).
- the auxiliary battery (120) may be configured to supply power to a refrigerant circulation unit that circulates refrigerant within the refrigerant circulation path (321).
- the main relay (410) is arranged on the power supply path on the output side of the main battery (110) and is configured to electrically connect or disconnect the main battery (110) and the power request device (300).
- the main relay (410) can be turned on and off by the battery management device (200).
- the auxiliary relay (420) is arranged on the power supply path on the output side of the auxiliary battery (120) and may be configured to electrically connect or disconnect specific components of the auxiliary battery (120) and the cooling system (320).
- the auxiliary relay (420) may be turned on and off by the battery management device (200).
- the auxiliary battery (120) may be configured to be directly connected to a specific component of the cooling system (320), for example, a refrigerant circulation pump (323).
- the refrigerant circulation pump (323) which is the component connected to the auxiliary battery (120), may be turned on and off by the battery management device (200).
- the main battery (110) and the auxiliary battery (120) may mean battery cells or battery assemblies.
- the auxiliary battery (120) may be a battery exhibiting an output voltage lower than the output voltage of the main battery (110).
- the battery management device (200) may correspond to a battery management system (BMS) located within a battery system, or may be configured to be included in the BMS.
- BMS battery management system
- the battery management device (200) can control whether power is supplied to the main battery (110) by controlling the on/off operation of the main relay (410). For example, the battery management device (200) can control the main relay (410) to a closed state so that the stored power of the main battery (110) is supplied to the power request device (300), and control the main relay (410) to an open state so that the power supply by the main battery (110) is cut off.
- the battery management device (200) can control whether to supply power to the auxiliary battery (120) by controlling the on/off operation of the auxiliary relay (420). For example, the battery management device (200) can control the auxiliary relay (420) to a closed state so that the stored power of the auxiliary battery (120) is supplied to the cooling system (320) or a specific component of the cooling system (320), for example, the refrigerant circulation pump (323), and can control the auxiliary relay (420) to an open state so that the power supply to the cooling system (320) or a specific component of the cooling system (320), for example, the refrigerant circulation pump (323), by the auxiliary battery (120) can be cut off.
- the battery management device (200) can control the auxiliary relay (420) to a closed state so that the stored power of the auxiliary battery (120) is supplied to the cooling system (320) or a specific component of the cooling system (320), for example, the refrigerant circulation pump (323), and can control the auxiliary relay (420) to an open
- the battery management device (200) can diagnose whether an abnormality has occurred in the battery system.
- the battery management device (200) can collect status information of the battery system through one or more sensors, and determine whether a predefined abnormal state has occurred in the battery system based on the collected status information.
- the battery management device (200) can determine whether an abnormal state such as overheating, high voltage, high current, short circuit, arc, or venting has occurred in the battery system.
- the battery management device (200) may, in conjunction with a diagnostic unit of the electric vehicle, check for abnormalities in one or more components included in the electric vehicle.
- the battery management device (200) may be configured to receive information about an abnormal state of an external configuration of a battery system from the diagnostic unit of the electric vehicle.
- the battery management device (200) can control power supply by the main battery (110) to be cut off when an abnormality occurs in the battery system or the electric vehicle, and control one or more components configured in the cooling system (320) to operate through power supplied by the auxiliary battery (120).
- the battery management device (200) may switch the main relay (410) from a closed state to an open state and switch the auxiliary relay (420) from an open state to a closed state. Accordingly, the power supply of the main battery (110) to the power request device (300) may be cut off, and at least a part of the functions of the cooling system (320), for example, the refrigerant circulation pump (323), may be activated by the auxiliary battery (120). At this time, since the power supply to the heat exchange unit (322) is cut off, the refrigerant (C) may be circulated in the refrigerant circulation path (321) without being cooled by the heat exchange unit (322).
- the battery management device (200) can switch the main relay (410) from a closed state to an open state and switch the power supply path to the component so that the component operates through power supplied by the auxiliary battery (120) rather than the main battery (110).
- FIG. 3 is a reference diagram for explaining a cooling system (320) according to an embodiment of the present invention.
- the cooling system (320) may be configured to include a refrigerant circulation path (321) through which refrigerant (C) circulates.
- the refrigerant (C) may be cooling water.
- a cooling plate (P) is configured to be in contact with at least a portion of an outer surface of the main battery (110), and a portion of a coolant circulation path (321) may be accommodated inside the cooling plate (P).
- coolant (C) may flow inside the cooling plate (P) and absorb heat generated from the main battery (110).
- the cooling plate (P) may be a heat exchange unit (322).
- the cooling system (320) can reduce the temperature of the coolant (C) through the heat exchange unit (322).
- the heat exchange unit (322) can reduce the temperature of the first coolant (C) by allowing the first coolant (C) for cooling the main battery (110) to exchange heat with a second coolant having a lower temperature than the first coolant (C).
- the refrigerant circulation pump (323) is arranged on the flow path of the refrigerant (C) and can apply a certain pressure to the refrigerant (C) so that the refrigerant (C) is circulated in a specific direction within the refrigerant circulation path (321).
- the auxiliary battery (120) may be configured to supply power to the refrigerant circulation pump (323) configured in the cooling system (320).
- the auxiliary battery (120) may be configured to supply power only to the refrigerant circulation pump (323) without supplying power to other components such as the heat exchange unit (322).
- the auxiliary battery (120) may be a battery having a lower output voltage than the output voltage of the main battery (110).
- the auxiliary battery (120) may be configured as a 12 V lead-acid battery or a 48 V low-voltage battery for activating only the refrigerant circulation function of the cooling system (320).
- the battery cooling function when the output of the main battery (110) is cut off due to occurrence of an abnormal condition, the battery cooling function is deactivated, but the coolant circulation function can be activated by the auxiliary battery (120), which is a low-voltage battery. Accordingly, the temperature of the main battery (110) is stabilized for a certain period of time, and occurrence of an additional abnormal condition can be prevented or delayed.
- Figure 4 is a flowchart of an operation method of a battery system according to an embodiment of the present invention.
- the operating method of a battery system according to an embodiment of the present invention can be performed by a battery management device (200) located in an electric vehicle.
- the operating method of the battery system according to the embodiment of the present invention can be performed in the driving mode of the electric vehicle or the charging mode of the main battery.
- the battery management device (200) can diagnose whether an abnormality has occurred in the battery system (S410).
- the battery management device (200) can collect status information of the battery system through one or more sensors, and determine whether a predefined abnormal state has occurred based on the collected status information.
- the battery management device (200) can receive abnormal state information on the external configuration of the battery system from the diagnosis unit of the electric vehicle.
- the battery management device (200) can check whether a predefined abnormal state has occurred (S420), and if the abnormal state has occurred, control the power supply by the main battery (110) to be cut off (S430).
- the battery management device (200) can cut off the output of the main battery (110) by switching the main relay (410) located on the power supply path on the output side of the main battery (110) from a closed state to an open state.
- the battery management device (200) can control some functions of the cooling system (320) to be activated through power from the auxiliary battery (120) (S440).
- the battery management device (200) may control one or more components configured in the cooling system (320) to operate via power supplied by the auxiliary battery (120), thereby activating at least some functions of the cooling system (320).
- FIG. 5 is a flowchart of an operation method of a battery system according to another embodiment of the present invention.
- the battery management device (200) can diagnose whether an abnormality has occurred in the battery system (S510).
- the battery management device (200) can collect status information of the battery system through one or more sensors, and determine whether a predefined abnormality has occurred based on the collected status information.
- the battery management device (200) can receive abnormality status information on the external configuration of the battery system from the diagnosis unit of the electric vehicle.
- the battery management device (200) can check whether a predefined abnormal state has occurred (S520), and if the abnormal state has occurred, control the power supply by the main battery (110) to be cut off (S530).
- the heat exchange unit (322) of the battery cooling system (320) is configured to operate by receiving power from the main battery (110), the cooling function of the battery can be stopped.
- the battery management device (200) can control the cooling system (320) to maintain only the refrigerant circulation function through the power of the auxiliary battery (120) (S540).
- the auxiliary battery (120) may be configured to supply power to a refrigerant circulation unit (e.g., a refrigerant circulation pump (323)) configured in the cooling system (320).
- a refrigerant circulation unit e.g., a refrigerant circulation pump (323)
- the refrigerant circulation unit may be operated through the power of the auxiliary battery (120), so that the refrigerant circulation function may be maintained.
- the refrigerant since the power supply to the heat exchange unit (322) is cut off, the refrigerant may be circulated within the refrigerant circulation path (321) without being cooled by the heat exchange unit (322).
- the battery cooling function when the output of the main battery (110) is cut off due to occurrence of an abnormal condition, the battery cooling function is deactivated, but the coolant circulation function can be activated by the auxiliary battery (120), which is a low-voltage battery. Accordingly, the temperature of the main battery (110) is stabilized for a certain period of time, and occurrence of an additional abnormal condition can be prevented or delayed.
- FIG. 6 is a flowchart of an operation method of a battery system according to another embodiment of the present invention.
- a method of operating a battery system according to another embodiment of the present invention can be performed in a parking mode of an electric vehicle or a sleep mode of the battery system.
- the battery management device (200) can switch the main relay (410) from a closed state to an open state (S620). Accordingly, the output of the main battery (110) can be cut off.
- the battery management device (200) is activated at preset intervals to check for any abnormalities in the battery system and electric vehicle (S630).
- the battery management device can maintain the power supply cut-off state of the main battery (110) (S640). For example, even when the electric vehicle is switched from the parking mode to the driving mode, or the sleep mode of the battery system is released, the battery management device (200) can prevent the main relay (410) from being switched to the closed state and maintain the main relay (410) in the open state.
- the battery management device (200) can control the refrigerant circulation unit (e.g., refrigerant circulation pump (323)) to operate through the power of the auxiliary battery (120), thereby activating the refrigerant circulation function of the cooling system (320). (S650). Accordingly, even when an abnormal condition occurs, the refrigerant circulation function is activated by the auxiliary battery (120), so that the temperature of the main battery (110) can be stabilized for a certain period of time.
- the refrigerant circulation unit e.g., refrigerant circulation pump (323)
- FIG. 7 is a block diagram of a battery management device (200) according to an embodiment of the present invention.
- the battery management device (200) may correspond to a battery management system (BMS) located within a battery system, or may be configured to be included in the BMS.
- BMS battery management system
- a battery management device (200) may include at least one processor (210), a memory (220) that stores at least one command executed through the processor, and a transceiver device (230) that is connected to a network and performs communication.
- the at least one command may include a command for diagnosing whether an abnormality has occurred in the battery system; a command for controlling power supply by the main battery (110) to be cut off when an abnormality has been detected; and a command for controlling an auxiliary battery (120) provided separately from the main battery (110) to supply power to one or more components configured in a cooling system (320) for cooling the main battery (110).
- a command for controlling power supply to one or more components configured in the cooling system (320) may include a command for controlling the auxiliary battery (120) to supply power to a refrigerant circulation unit, for example, a refrigerant circulation pump (323), which circulates refrigerant within a refrigerant circulation path (321).
- a refrigerant circulation unit for example, a refrigerant circulation pump (323), which circulates refrigerant within a refrigerant circulation path (321).
- the main battery (110) is configured to supply power to the cooling system (320), and the auxiliary battery (120) may be configured to supply power only to a refrigerant circulation unit, for example, a refrigerant circulation pump (323), configured in the cooling system (320) when the power supply by the main battery (110) is cut off.
- a refrigerant circulation unit for example, a refrigerant circulation pump (323)
- the cooling system (320) may include a refrigerant circulation path (321) through which refrigerant flows; a heat exchange unit (322) that cools the refrigerant; and a refrigerant circulation pump (323) that allows the refrigerant to circulate within the refrigerant circulation path.
- a command for controlling power supply to one or more components configured in the cooling system (320) may include a command for controlling the auxiliary battery (120) to supply power to the refrigerant circulation pump (323).
- the command for controlling the power supply by the main battery (110) to be cut off may include a command for controlling the power supply of the main battery (110) to the heat exchange unit (322) to be cut off.
- the command for controlling the auxiliary battery (120) to supply power to the refrigerant circulation pump (323) may include a command for causing the refrigerant circulation pump (323) to operate through the power supplied by the auxiliary battery (120) so that the refrigerant is circulated within the refrigerant circulation path (321) without being cooled by the heat exchange unit (322).
- the command for controlling the power supply by the main battery (110) to be cut off may include a command for switching the main relay (410) arranged on the power supply path on the output side of the main battery (110) from a closed state to an open state.
- the command for controlling the power supply to one or more components of the cooling system (320) may include a command for controlling the one or more components to operate through power supplied by the auxiliary battery (120).
- the command for diagnosing whether an abnormality has occurred in the above battery system may include a command for diagnosing whether an abnormality has occurred in the battery system in the driving mode of the electric vehicle or the charging mode of the main battery (110).
- the command for diagnosing whether an abnormality has occurred in the above battery system may include a command that is activated at preset intervals in the parking mode of the electric vehicle or the sleep mode of the battery system to diagnose whether an abnormality has occurred in the battery system.
- the battery management device (200) may also further include an input interface device (240), an output interface device (250), a storage device (260), etc. Each component included in the battery management device (200) may be connected by a bus (270) and communicate with each other.
- the processor (210) may mean a central processing unit (CPU), a graphics processing unit (GPU), or a dedicated processor on which methods according to embodiments of the present invention are performed.
- the memory (or storage device) may be composed of at least one of a volatile storage medium and a nonvolatile storage medium.
- the memory may be composed of at least one of a read-only memory (ROM) and a random access memory (RAM).
- the operation of the method according to an embodiment of the present invention can be implemented as a computer-readable program or code on a computer-readable recording medium.
- the computer-readable recording medium includes all types of recording devices that store data that can be read by a computer system.
- the computer-readable recording medium can be distributed over network-connected computer systems so that the computer-readable program or code can be stored and executed in a distributed manner.
- a block or device corresponds to a method step or a feature of a method step.
- aspects described in the context of a method may also be represented as a feature of a corresponding block or item or a corresponding device.
- Some or all of the method steps may be performed by (or using) a hardware device, such as, for example, a microprocessor, a programmable computer or an electronic circuit. In some embodiments, one or more of the most significant method steps may be performed by such a device.
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Abstract
Description
Claims (20)
- 전기자동차 내에 위치하는 배터리 시스템으로서,메인 배터리;상기 전기자동차에 포함되는 하나 이상의 부품에 이상 발생시, 상기 메인 배터리에 의한 전력 공급이 차단되도록 제어하는, 배터리 관리 장치; 및상기 메인 배터리와 별도로 마련되며, 상기 메인 배터리에 의한 전력 공급이 차단되는 경우, 상기 메인 배터리의 냉각을 위한 냉각 시스템에 구성된 하나 이상의 부품에 전력을 공급하는, 보조 배터리를 포함하는, 배터리 시스템.
- 청구항 1에 있어서,상기 보조 배터리는,냉매 순환 유로 내에서 냉매를 순환시키는, 냉매 순환 펌프에 전력을 공급하도록 구성되는, 배터리 시스템.
- 청구항 2에 있어서,상기 메인 배터리는,상기 냉각 시스템에 전력을 공급하도록 구성되고,상기 보조 배터리는,상기 메인 배터리에 의한 전력 공급이 차단되는 경우, 상기 냉각 시스템에 구성된 냉매 순환 펌프에만 전력을 공급하도록 구성되는, 배터리 시스템.
- 청구항 1에 있어서,상기 냉각 시스템은,내부에 냉매가 유동하는 냉매 순환 유로; 상기 냉매를 냉각시키는 칠러; 및 상기 냉매가 상기 냉매 순환 유로 내에서 순환되도록 하는 냉매 순환 펌프를 포함하고,상기 보조 배터리는,상기 메인 배터리에 의한 전력 공급이 차단되는 경우, 상기 냉매 순환 펌프에 전력을 공급하도록 구성되는, 배터리 시스템.
- 청구항 4에 있어서,하나 이상의 부품에 이상 발생시,상기 칠러는,상기 메인 배터리에 의한 전력 공급이 차단되고,상기 냉매 순환 펌프는,상기 보조 배터리에 의해 공급되는 전력을 통해 동작하여, 상기 냉매가 상기 칠러에 의해 냉각되지 않은 상태로 상기 냉매 순환 유로 내에서 순환되도록 하는, 배터리 시스템.
- 청구항 1에 있어서,상기 보조 배터리는,상기 메인 배터리의 출력 전압보다 낮은 출력 전압을 나타내는 배터리인, 배터리 시스템.
- 청구항 1에 있어서,하나 이상의 부품에 이상 발생시,상기 배터리 관리 장치는,상기 메인 배터리의 출력 측 전력 공급 경로 상에 배치된 메인 릴레이를 클로즈 상태에서 오픈 상태로 전환시키고,상기 냉각 시스템에 구성된 하나 이상에 부품이 상기 보조 배터리에 의해 공급되는 전력을 통해 동작하도록 제어하는, 배터리 시스템.
- 청구항 1에 있어서,상기 배터리 관리 장치는,상기 전기자동차의 운행 모드, 또는 상기 메인 배터리의 충전 모드에서, 상기 배터리 시스템에 대한 이상 발생 여부를 진단하고, 이상 발생이 감지되면, 상기 메인 배터리에 의한 전력 공급이 차단되도록 제어하고, 상기 보조 배터리에 의한 전력 공급이 허용되도록 제어하는, 배터리 시스템.
- 청구항 1에 있어서,상기 배터리 관리 장치는,상기 전기자동차의 주차 모드, 또는 상기 배터리 시스템의 슬립 모드에서, 기정의된 시간마다 활성화되어 상기 배터리 시스템에 대한 이상 발생 여부를 진단하고, 이상 발생이 감지되면, 상기 메인 배터리의 전력 공급 차단 상태가 유지되도록 하고, 상기 보조 배터리에 의한 전력 공급이 허용되도록 제어하는, 배터리 시스템.
- 전기자동차 내에 위치하는 배터리 관리 장치에 의한, 배터리 시스템의 운영 방법으로서,상기 배터리 시스템에 대한 이상 발생 여부를 진단하는 단계;이상 발생이 감지되면, 메인 배터리에 의한 전력 공급이 차단되도록 제어하는 단계; 및상기 메인 배터리에 의한 전력 공급이 차단되는 경우, 상기 메인 배터리와 별도로 마련되는 보조 배터리가, 상기 메인 배터리의 냉각을 위한 냉각 시스템에 구성된 하나 이상의 부품에 전력을 공급하도록 제어하는 단계를 포함하는, 배터리 시스템의 운영 방법.
- 청구항 10에 있어서,상기 냉각 시스템에 구성된 하나 이상의 부품에 전력을 공급하도록 제어하는 단계는,상기 보조 배터리가, 냉매 순환 유로 내에서 냉매를 순환시키는, 냉매 순환 펌프에 전력을 공급하도록 제어하는 단계를 포함하는, 배터리 시스템의 운영 방법.
- 청구항 11에 있어서,상기 메인 배터리는,상기 냉각 시스템에 전력을 공급하도록 구성되고,상기 보조 배터리는,상기 메인 배터리에 의한 전력 공급이 차단되는 경우, 상기 냉각 시스템에 구성된 냉매 순환 펌프에만 전력을 공급하도록 구성되는, 배터리 시스템의 운영 방법.
- 청구항 10에 있어서,상기 냉각 시스템은,내부에 냉매가 유동하는 냉매 순환 유로; 상기 냉매를 냉각시키는 칠러; 및 상기 냉매가 상기 냉매 순환 유로 내에서 순환되도록 하는 냉매 순환 펌프를 포함하고,상기 냉각 시스템에 구성된 하나 이상에 부품에 전력을 공급하도록 제어하는 단계는,상기 보조 배터리가, 상기 냉매 순환 펌프에 전력을 공급하도록 제어하는 단계를 포함하는, 배터리 시스템의 운영 방법.
- 청구항 13에 있어서,상기 메인 배터리에 의한 전력 공급이 차단되도록 제어하는 단계는,상기 칠러에 대한 상기 메인 배터리의 전력 공급이 차단되도록 제어하는 단계를 포함하고,상기 보조 배터리가, 상기 냉매 순환 펌프에 전력을 공급하도록 제어하는 단계는,상기 냉매 순환 펌프가 상기 보조 배터리에 의해 공급되는 전력을 통해 동작하여, 상기 냉매가 상기 칠러에 의해 냉각되지 않은 상태로 상기 냉매 순환 유로 내에서 순환되도록 하는 단계를 포함하는, 배터리 시스템의 운영 방법.
- 청구항 10에 있어서,상기 보조 배터리는,상기 메인 배터리의 출력 전압보다 낮은 출력 전압을 나타내는 배터리인, 배터리 시스템의 운영 방법.
- 청구항 10에 있어서,상기 메인 배터리에 의한 전력 공급이 차단되도록 제어하는 단계는,상기 메인 배터리의 출력 측 전력 공급 경로 상에 배치된 메인 릴레이를 클로즈 상태에서 오픈 상태로 전환시키는 단계를 포함하고,상기 하나 이상에 부품에 전력을 공급하도록 제어하는 단계는,상기 하나 이상에 부품이 상기 보조 배터리에 의해 공급되는 전력을 통해 동작하도록 제어하는 단계를 포함하는, 배터리 시스템의 운영 방법.
- 청구항 10에 있어서,상기 배터리 시스템에 대한 이상 발생 여부를 진단하는 단계는,상기 전기자동차의 운행 모드, 또는 상기 메인 배터리의 충전 모드에서, 상기 배터리 시스템에 대한 이상 발생 여부를 진단하는 단계를 포함하는, 배터리 시스템의 운영 방법.
- 청구항 10에 있어서,상기 배터리 시스템에 대한 이상 발생 여부를 진단하는 단계는,상기 전기자동차의 주차 모드, 또는 상기 배터리 시스템의 슬립 모드에서, 기정의된 시간마다 활성화되어 상기 배터리 시스템에 대한 이상 발생 여부를 진단하는 단계를 포함하는, 배터리 시스템의 운영 방법.
- 전기자동차 내에 위치하는 배터리 시스템으로서,상기 전기 자동차에 전력을 공급하는 메인 배터리;상기 전기자동차에 포함되는 하나 이상의 부품에 이상 발생시, 상기 메인 배터리에 의한 전력 공급이 차단되도록 제어하는, 배터리 관리 장치; 및상기 메인 배터리와 별도로 마련되며, 상기 메인 베터리에 의한 전력공급이 차단되는 경우, 상기 메인 배터리의 냉각을 위한 냉각 시스템에 구성된 하나 이상의 부품중에 특정 부품에만 직접 전력을 공급하고 냉각 시스템의 나머지 부품에는 전력을 공급하지 않도록 고안된, 보조 배터리를 포함하는, 배터리 시스템.
- 청구항 19에 있어서,상기 냉각 시스템은 내부에 냉매가 유동하는 냉매 순환 유로; 상기 냉매를 냉각시키는 칠러; 및 상기 냉매가 상기 냉매 순환 유로 내에서 순환되도록 하는 냉매 순환 펌프를 포함하고,상기 보조 배터리는 상기 메인 배터리에 의한 전력 공급이 차단되는 경우, 상기 냉각 시스템의 상기 냉매 순환 펌프에만 전력을 직접 공급하도록 구성되는, 배터리 시스템.
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| EP24845794.7A EP4620728A4 (en) | 2023-07-27 | 2024-06-10 | BATTERY SYSTEM AND BATTERY SYSTEM OPERATING METHOD |
| JP2025534188A JP2025539551A (ja) | 2023-07-27 | 2024-06-10 | 電池システム及び電池システムの運営方法 |
| CN202480006233.4A CN120476060A (zh) | 2023-07-27 | 2024-06-10 | 电池系统和电池系统的操作方法 |
| MX2025007619A MX2025007619A (es) | 2023-07-27 | 2025-06-27 | Sistema de baterias y metodo de operacion de sistema de baterias |
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| US20250038295A1 (en) | 2025-01-30 |
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| EP4620728A1 (en) | 2025-09-24 |
| EP4620728A4 (en) | 2026-02-18 |
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| CN120476060A (zh) | 2025-08-12 |
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