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WO2021210715A1 - Dispositif et procédé de protection de batterie - Google Patents

Dispositif et procédé de protection de batterie Download PDF

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Publication number
WO2021210715A1
WO2021210715A1 PCT/KR2020/005655 KR2020005655W WO2021210715A1 WO 2021210715 A1 WO2021210715 A1 WO 2021210715A1 KR 2020005655 W KR2020005655 W KR 2020005655W WO 2021210715 A1 WO2021210715 A1 WO 2021210715A1
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WO
WIPO (PCT)
Prior art keywords
battery
detection signal
battery pack
leak
preset reference
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2020/005655
Other languages
English (en)
Korean (ko)
Inventor
강정수
남상현
김민철
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Enertech International Inc
Original Assignee
Enertech International Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Enertech International Inc filed Critical Enertech International Inc
Publication of WO2021210715A1 publication Critical patent/WO2021210715A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0069—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to the isolation, e.g. ground fault or leak current
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/18—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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2250/00—Driver interactions
    • B60L2250/10—Driver interactions by alarm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2250/00—Driver interactions
    • B60L2250/16—Driver interactions by display
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/91—Electric vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles

Definitions

  • the present invention relates to a battery protection device and a method therefor, and in particular, by installing a leak sensor in a battery pack, and controlling the operation of the battery according to a detection signal of the installed leak sensor, to enable stable operation of the battery. It relates to a battery protection device and a method therefor.
  • An electric vehicle is a pure electric vehicle (EV) that drives by driving a driving motor, a hybrid electric vehicle (HEV) that runs with an engine and a driving motor, and the driving motor is driven by power generated from a fuel cell.
  • a fuel cell electric vehicle (FCEV) that runs.
  • Such an electric vehicle includes a battery as a power storage means for supplying electric power to the driving motor together with a driving motor for driving the vehicle.
  • a battery as a power storage means for supplying electric power to the driving motor together with a driving motor for driving the vehicle.
  • nickel-hydrogen and lithium-polymer-based batteries are well known.
  • Such a battery may be configured as a battery pack in which a plurality of battery modules are combined in series or parallel.
  • Power for driving the electric vehicle can be supplied from the battery, and the battery generates heat, and the heat of the battery accelerates the discharge of the battery and reduces the charging rate, which lowers the battery performance, so cooling the battery is essential. .
  • the water cooling method has high cooling efficiency, if the coolant leaks according to the airtight state of the coolant, it may rather pose a great threat to the safety of the battery pack.
  • water may cause a short circuit when a high voltage is applied to the connected portion, and a fire may occur due to the short circuit.
  • a fire occurs in a lithium battery, it is more difficult to extinguish than a normal fire, and in severe cases, it can even explode.
  • the present invention is to solve the above problems, and an object of the present invention is to install a leak sensor in a battery pack and control the driving of the battery according to the detection signal of the installed leak sensor, An object of the present invention is to provide a battery protection device and method for enabling stable operation.
  • the present invention installs a leak sensor in the battery pack, detects humidity due to leakage in the battery pack and coolant leakage through the installed leak sensor, and enables stable operation of the battery pack according to the detection result.
  • the battery protection device detects the humidity inside, and when the detected detection signal is out of a preset reference range, it is determined that an internal leak has occurred and stops the driving of the battery in operation, and internal leak a battery pack providing external information for warning of occurrence; and a vehicle control unit configured to display an alarm message on a display panel of the vehicle according to the internal leakage warning information provided from the battery pack.
  • the internal leak warning information provided from the battery pack may be provided to the vehicle control unit through a CAN communication line.
  • the battery pack a leak sensor for detecting the humidity inside the battery pack; a battery contactor for switching the battery driving according to the provided battery driving control signal; And BMS (Battery Management System) that compares the voltage value for the detection signal detected by the leak sensor with a preset reference voltage range value and provides a control signal for controlling the operation of the battery to the battery contactor according to the comparison result may include.
  • BMS Battery Management System
  • the BMS may include: a detection signal receiver configured to receive a detection signal detected by the leak sensor and provide a voltage value for the received detection signal; By comparing the voltage value for the detection signal provided through the detection signal receiving unit with a preset reference voltage range value, when the voltage value for the detection signal is out of the preset reference voltage range value, it is determined that a leak has occurred in the battery pack,
  • the battery contactor may include a control unit that provides a control signal for stopping battery driving.
  • the BMS when the voltage value for the detection signal is out of a preset reference voltage range, the BMS determines that a leak has occurred in the battery pack and sends information to warn the occurrence of leak in the battery pack to the vehicle controller. It may further include a CAN communication unit to provide.
  • control unit may determine that there is no leakage in the battery pack and execute a command according to the driving sequence. have.
  • the battery pack according to another aspect of the present invention, a leak sensor for detecting the humidity inside the battery pack; a battery contactor for switching the battery driving according to the provided battery driving control signal; and a BMS for providing a control signal for controlling the operation of the battery to the battery contactor according to the comparison result by comparing a voltage value for the detection signal detected by the leak sensor with a preset reference voltage range value.
  • the BMS may include: a detection signal receiver configured to receive a detection signal detected by the leak sensor and provide a voltage value for the received detection signal; By comparing the voltage value for the detection signal provided through the detection signal receiving unit with a preset reference voltage range value, when the voltage value for the detection signal is out of the preset reference voltage range value, it is determined that a leak has occurred in the battery pack,
  • the battery contactor may include a control unit that provides a control signal for stopping battery driving.
  • the BMS when the voltage value for the detection signal is out of a preset reference voltage range, the BMS determines that a leak has occurred in the battery pack and sends information to warn the occurrence of leak in the battery pack to the vehicle controller. It may further include a CAN communication unit to provide.
  • control unit may determine that there is no leakage in the battery pack and execute a command according to the driving sequence. have.
  • the controller may further include a memory in which the preset reference voltage range value is stored.
  • the battery protection method in the battery pack, detects the humidity inside, and when the sensed detection signal is out of a preset reference range, determines that an internal leak occurs and drives the battery being driven stopping and providing information to the outside to warn the occurrence of internal leaks; and displaying an alarm message on the display panel by the vehicle controller according to the internal leakage warning information provided from the battery pack.
  • the internal leak warning information provided from the battery pack may be provided to the vehicle control unit through a CAN communication line.
  • the providing step may include: detecting humidity inside the battery pack through a leak sensor installed inside the battery pack; and comparing the voltage value for the detection signal detected by the leak sensor and a preset reference voltage range value, and providing a control signal for controlling the operation of the battery to the battery contactor according to the comparison result to control the operation of the battery may include steps.
  • the controlling includes: receiving a detection signal detected by the leak sensor, and providing a voltage value for the received detection signal; comparing a voltage value for the provided detection signal with a preset reference voltage range value; As a result of the comparison, when the voltage value for the detection signal is out of a preset reference voltage range, it is determined that a leak has occurred in the battery pack, and a control signal for stopping battery operation is provided to the battery contactor to control battery operation.
  • the voltage value for the detection signal when the voltage value for the detection signal is out of a preset reference voltage range, it is determined that a leak has occurred in the battery pack and information for warning of the occurrence of the leak in the battery pack is provided to the vehicle. It can be provided through a CAN communication line as a control unit.
  • the step of controlling the driving of the battery may include, when the voltage value for the detection signal is included in a preset reference voltage range, determining that no leakage has occurred in the battery pack and executing a command according to the driving sequence.
  • a leak sensor is installed in the battery pack, and humidity (moisture) caused by leakage and coolant leakage in the battery pack is detected through the installed leak sensor, and the battery pack can be operated stably according to the detection result. By doing so, it is possible to exclude risks due to battery protection and short circuit of the battery cells.
  • the BMS detects this signal, provides information to the vehicle, and controls the contactor of the battery to stop the battery, so more reliable battery operation is possible do.
  • FIG. 1 is a view showing an internal block configuration for a battery protection device according to the present invention.
  • FIG. 2 is a view showing an operation flowchart for a battery protection method according to the present invention.
  • first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component.
  • FIG. 1 is a diagram showing a block configuration of a battery protection device according to the present invention.
  • the battery protection device may include a power distribution unit (PDU) 100 , a vehicle control unit 200 , and a battery pack 300 .
  • PDU power distribution unit
  • the battery pack 300 may include a battery contactor 310 , a leak sensor 320 , and a Battery Management System (BMS) 330 .
  • BMS Battery Management System
  • the BMS 330 may include a detection signal receiving unit 331 , a control unit 332 , and a CAN communication unit 333 .
  • the BMS 330 is a system for managing a battery, which is the most essential component of an electric vehicle and an energy storage system, and monitors the voltage, current, and temperature of the battery pack 300 and maintains it in an optimal state to predict when to replace the battery. and a device that plays an important role in battery management, such as detecting battery problems in advance.
  • the vehicle control unit 200 is an electronic control unit (ECU) that serves to control various devices (devices) inside the vehicle, and communicates with the BMS 330 in the battery pack 200 using a CAN protocol. can be performed.
  • ECU electronice control unit
  • the vehicle and the battery pack 300 are connected to the DC link of the battery through the PDU 100 line, and the battery can be charged and discharged through this line.
  • the vehicle controller 200 includes a controller 332 having an embedded control application mounted therein for controlling the BMS 330 within the battery pack 300 .
  • the vehicle controller 200 may be connected through the CAN communication unit 333 interworking with the MCU (Micro Controller Unit) module.
  • MCU Micro Controller Unit
  • the battery contactor 310 of the battery pack 300 may be a switch connected to the PDU 100 and the BMS 330 to turn on/off the operation of the battery.
  • the leak sensor 320 is installed at an arbitrary position in the battery pack 320, detects humidity (moisture) in the battery pack 300, and provides the detected signal to the detection signal receiver 331 in the BMS 330. do. That is, the generation of humidity in the battery pack 300 may cause water leakage due to cracks and breakage of the battery pack 300, and water retention due to leakage of coolant, so that humidity according to the generated moisture is detected. .
  • the detection signal receiving unit 331 receives the humidity detection signal provided from the leak sensor 320 , and provides a voltage value corresponding to the received detection signal to the control unit 332 .
  • the control unit 332 determines whether a voltage value corresponding to the humidity detection signal in the battery pack 300 provided through the detection signal receiving unit 331 is included in a preset reference voltage range.
  • the controller 332 may include a memory (not shown) for storing a reference voltage range value to be compared with the sensed voltage value.
  • the control unit 332 When the voltage value corresponding to the humidity detection signal in the battery pack 300 provided through the detection signal receiver 331 is included in the preset reference voltage range, the control unit 332 generates a leak in the battery pack 300 . It is judged that it has not been done, and the command according to the operation sequence is executed normally.
  • the control unit 332 controls the battery pack 300 to leak water. It is determined that it has occurred and information about the occurrence of leakage in the battery pack 300 is provided to the vehicle control unit 200 , that is, the ECU through the CAN communication unit 333 .
  • the vehicle control unit 200 controls the vehicle so that the user (driver) can check it according to the information on the occurrence of water leakage in the battery pack 300 transmitted through the CAN communication unit 333 from the BMS 330 in the battery pack 300 .
  • a warning message can be displayed on the display panel of Accordingly, the user (driver) can take measures to remove the leakage of the battery pack 300 according to the displayed warning message.
  • the battery pack ( 300), the battery contactor 310 is switched off in order to prevent damage and accidents of the battery by determining that a leak has occurred.
  • the leak sensor 320 installed in the battery pack 300 detects the humidity in the battery pack 300 , and transmits the detected signal to the detection signal receiver 331 in the BMS 330 . ) is provided.
  • the detection signal receiving unit 331 receives the humidity detection signal provided from the leak sensor 320 and provides a voltage value corresponding to the received detection signal to the control unit 332 .
  • the control unit 332 compares a voltage value corresponding to the humidity detection signal in the battery pack 300 provided through the detection signal receiving unit 331 with a reference voltage range value preset in the memory in the control unit 332 .
  • the controller 332 controls the battery pack ( It is determined that a leak has occurred in the vehicle 300 , and information about the occurrence of a leak in the battery pack 300 is provided to the vehicle control unit 200 , that is, the ECU through the CAN communication unit 333 .
  • the vehicle control unit 200 controls the vehicle so that the user (driver) can check it according to the information about the leakage occurrence in the battery 300 transmitted through the CAN communication unit 333 from the BMS 330 of the battery pack 300 .
  • a warning message can be displayed on the display panel.
  • the control unit 332 in the BMS 330 determines that the leakage in the 300 has occurred and the switch of the battery contactor 310 is turned off in order to prevent damage and accidents of the battery to stop the operation of the battery.
  • FIG. 2 is a view showing an operation flowchart for a battery protection method according to the present invention.
  • the humidity in the battery pack 300 is sensed using the leak sensor 320 installed in the battery pack 300 and provided to the BMS 330 (S202, S203).
  • the BMS 330 receives the humidity detection signal provided from the leak sensor 320 , generates a voltage value corresponding to the received detection signal, and the voltage value corresponding to the generated detection signal is the BMS 330 . It is determined whether it is included within a preset reference voltage range (S204).
  • step S204 when the voltage value corresponding to the detection signal detected through the leak sensor 320 is included in the preset reference voltage range value, it is determined that the leak does not occur in the battery pack 300 . Thus, the command according to the operation sequence is normally performed (S205).
  • step S204 when the voltage value corresponding to the detection signal detected through the leak sensor 320 is out of the preset reference voltage range, the BMS 330 leaks in the battery pack 300 . is determined to have occurred, and information about the occurrence of leakage in the battery pack 300 is provided to the vehicle control unit 200, that is, the ECU through the CAN communication line (S206).
  • the vehicle control unit 200 controls the display panel of the vehicle so that the user (driver) can check it according to the information on the occurrence of water leakage in the battery 300 transmitted through the CAN communication line from the BMS 330 of the battery pack 300 . can display a warning message on
  • step S206 that is, as a result of the determination in step S204, when the voltage value corresponding to the detection signal sensed through the leak sensor 320 is out of the preset reference voltage range, the battery pack ( 300), to prevent damage and accidents of the battery, the switch of the battery contactor 310 is turned off (or opened) to stop the operation of the battery (S207, S208).
  • the BMS of the present invention detects a leak inside the battery battery pack using a leak signal by a leak sensor and controls the operation of the battery according to the detection result, thereby supporting safer battery operation and providing an electric vehicle. to support the efficient operation of
  • the present invention is not necessarily limited to this embodiment. That is, within the scope of the object of the present invention, all the components may operate by selectively combining one or more.
  • all the components may be implemented as one independent hardware, some or all of the components are selectively combined to perform some or all functions combined in one or a plurality of hardware program modules It may be implemented as a computer program having
  • such a computer program is stored in a computer readable media such as a USB memory, a CD disk, a flash memory, etc., read and executed by a computer, thereby implementing an embodiment of the present invention.
  • the computer program recording medium may include a magnetic recording medium, an optical recording medium, a carrier wave medium, and the like.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Sustainable Energy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Secondary Cells (AREA)

Abstract

La présente invention concerne un dispositif et un procédé de protection d'une batterie, un capteur de fuite étant installé à l'intérieur d'un bloc-batterie et le fonctionnement de la batterie étant commandé en fonction d'un signal de détection du capteur de fuite installé pour permettre une utilisation stable de la batterie. Le dispositif peut comprendre : le bloc-batterie qui détecte l'humidité interne et qui, si le signal de détection détecté est en dehors d'une plage de référence prédéfinie, détermine qu'une fuite interne s'est produite, arrête le fonctionnement de la batterie fonctionnelle et fournit des informations pour avertir de l'apparition de la fuite interne, vers l'extérieur ; et une unité de commande de véhicule qui affiche un message d'avertissement sur un écran d'affichage en fonction des informations d'avertissement de l'apparition de la fuite interne fournies par le bloc-batterie.
PCT/KR2020/005655 2020-04-17 2020-04-29 Dispositif et procédé de protection de batterie Ceased WO2021210715A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020200046408A KR20210128597A (ko) 2020-04-17 2020-04-17 배터리 보호 장치 및 그 방법
KR10-2020-0046408 2020-04-17

Publications (1)

Publication Number Publication Date
WO2021210715A1 true WO2021210715A1 (fr) 2021-10-21

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PCT/KR2020/005655 Ceased WO2021210715A1 (fr) 2020-04-17 2020-04-29 Dispositif et procédé de protection de batterie

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KR102737344B1 (ko) * 2022-11-10 2024-12-03 주식회사 윌로그 선박의 해상 운송 환경을 센싱 및 보정하기 위한 장치 및 방법
KR102575901B1 (ko) 2023-07-06 2023-09-07 주식회사 한중엔시에스 누수 감지 장치
KR102596479B1 (ko) 2023-07-10 2023-10-31 주식회사 한중엔시에스 누수 감지 방법

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