WO2019132245A1 - Système de gestion de batterie et bloc-batterie comportant ce dernier - Google Patents

Système de gestion de batterie et bloc-batterie comportant ce dernier Download PDF

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Publication number
WO2019132245A1
WO2019132245A1 PCT/KR2018/014002 KR2018014002W WO2019132245A1 WO 2019132245 A1 WO2019132245 A1 WO 2019132245A1 KR 2018014002 W KR2018014002 W KR 2018014002W WO 2019132245 A1 WO2019132245 A1 WO 2019132245A1
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WO
WIPO (PCT)
Prior art keywords
control signal
battery module
cell voltage
battery
voltage value
Prior art date
Application number
PCT/KR2018/014002
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English (en)
Korean (ko)
Inventor
태용준
Original Assignee
삼성에스디아이 주식회사
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Publication of WO2019132245A1 publication Critical patent/WO2019132245A1/fr

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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
    • B60L3/0092—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption with use of redundant elements for safety purposes
    • 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
    • B60L3/0046—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
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • 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
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • 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
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/3644—Constructional arrangements
    • G01R31/3646—Constructional arrangements for indicating electrical conditions or variables, e.g. visual or audible indicators
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/547—Voltage
    • 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
    • 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

Definitions

  • An embodiment relates to a battery management system and a battery pack including the same.
  • BMS battery management system
  • a battery management system for detecting a cell voltage value for a plurality of cells constituting a battery module, and for determining whether the battery module is overcharged or overdischarged based on the cell voltage value
  • An integrated circuit for generating an alarm signal indicating that the battery module is overcharged or overdischarged, receiving the cell voltage value from the integrated circuit, determining whether the battery module is overcharged or overdischarged based on the cell voltage value,
  • a logic circuit for outputting a second control signal from the first control signal and the alarm signal; a delay circuit for delaying the alarm signal input from the integrated circuit by a predetermined time and delivering it to the logic circuit; And a driving unit for controlling charging and discharging of the battery module according to the second control signal.
  • the integrated circuit determines that the battery module is overcharged if the cell voltage value is greater than or equal to a first threshold, and determines that the battery module is overdischarged if the cell voltage value is less than or equal to a second threshold value
  • the battery controller determines that the battery module is overcharged if the cell voltage value is greater than or equal to a third threshold value and determines that the battery module is overdischarged if the cell voltage value is less than or equal to a fourth threshold value
  • 1 threshold may be higher than the third threshold
  • the second threshold may be lower than the fourth threshold.
  • the battery controller receives the alarm signal from the integrated circuit, and the integrated circuit can communicate the cell voltage value and the alarm signal to the battery controller via different communication paths.
  • the driving unit may control charging / discharging of the battery module by opening / closing a switch connected between the battery pack and a battery pack terminal including the battery module.
  • the logic circuit may output the second control signal to indicate opening of the switch if at least one of the first control signal and the alarm signal indicates an overcharge or overdischarge condition have.
  • the logic circuit may be an OR circuit that receives the first control signal and the alarm signal, and outputs the second control signal.
  • the battery pack includes a plurality of pack terminals, a battery module including a plurality of cells, a switch connected between any one of the plurality of pack terminals and the battery module, a cell voltage value An integrated circuit for generating an alarm signal indicating whether the battery module is overcharged or overdischarged based on the cell voltage value, a battery controller for outputting a first control signal for controlling the switch, A delay circuit for delaying the alarm signal inputted from the integrated circuit by a predetermined time and transmitting the delayed alarm signal to the logic circuit; And a driver for opening /
  • the integrated circuit determines that the battery module is overcharged if the cell voltage value is greater than or equal to a first threshold, and determines that the battery module is overdischarged if the cell voltage value is less than or equal to a second threshold .
  • the battery controller receives the cell voltage value from the integrated circuit and determines that the battery module is overcharged if the cell voltage value is equal to or greater than a third threshold value that is lower than the first threshold value, It is determined that the battery module is in an overdischarge state when the voltage value is lower than a fourth threshold value higher than the second threshold value and the first control signal is output based on the overcharge or overdischarge determination result.
  • the battery controller may receive the alarm signal from the integrated circuit through a communication path different from the cell voltage value, and may output the first control signal based on the alarm signal.
  • the logic circuit may output the second control signal to indicate opening of the switch if at least one of the first control signal and the alarm signal indicates an overcharge or overdischarge state .
  • the logic circuit may be an OR circuit that receives the first control signal and the alarm signal, and outputs the second control signal.
  • the battery pack can be doubly protected from illegal access from the outside.
  • FIG. 1 shows an example of a battery pack.
  • FIG. 2 schematically shows a battery pack according to an embodiment of the present invention.
  • Electrical connection of two components includes not only direct connection of two components but also connection between two components via different components.
  • Other components may include switches, resistors, capacitors, and the like.
  • the expression " connection " means that the connection is electrically connected when there is no expression of direct connection.
  • FIG. 1 shows an example of a battery pack.
  • a slave board 20 on which an analog front end IC (AFE IC) is mounted is coupled to each battery module 10 constituting the battery pack.
  • AFE IC analog front end IC
  • the AFE IC 21 detects state information of a corresponding battery module 10, such as a cell voltage value, and transmits the state information to the battery controller 31 in the master board 30 .
  • the AFE IC 21 detects the overcharge / overdischarge state of the corresponding battery module 10 and transmits the corresponding alarm signal to the battery controller 31 when the overcharge / overdischarge judgment circuit itself is mounted .
  • the battery controller 31 receives the status information or the alarm signal of the corresponding battery module 10 from each AFE IC 21 and determines the overcharge / overdischarge state of the battery modules 10 based on the status information or the alarm signal. Then, in accordance with the determination result, a control signal for controlling the charging / discharging switch unit 40 is outputted to the switch driving unit 33.
  • the battery controller 31 when the battery controller 31 is hacked through the CAN (Controller Area Network) communication connected to the vehicle network and the control is passed to the outside, the battery controller 31 detects the overcharge / The malfunctioning operation can be performed with respect to the threshold values for controlling the charging / discharging switch unit 40 or the control of the charging / discharging switch unit 40.
  • CAN Controller Area Network
  • the embodiment of the present invention provides a battery management system capable of protecting the battery pack from overcharge / overdischarge even when the battery controller malfunctions due to hacking.
  • FIG. 2 schematically shows a battery pack according to an embodiment of the present invention.
  • a battery pack according to an embodiment of the present invention includes at least one battery module 100, a battery management system (BMS), a charge / discharge switch unit 400, P +, P-).
  • BMS battery management system
  • P +, P- charge / discharge switch unit
  • each battery module 100 may include a plurality of cells connected in series or parallel to each other.
  • the battery management system includes at least one slave board 200 coupled to the battery module 100 and performing status monitoring and balancing of the battery module 100, And may include a master board 300 that performs operations.
  • the slave board 200 is connected to the AFE IC 210 for monitoring the cell state (cell voltage, cell current, temperature, etc.) of the corresponding battery module 100, A balancing circuit (not shown) for performing a function can be mounted.
  • the AFE IC 210 can detect the cell state information such as the cell voltage value of the corresponding battery module 100. [ The cell voltage values detected by the AFE IC 210 are transmitted to the battery controller 310 through the intra-pack communication. The communication between the AFE IC 210 and the battery controller 310 for transferring the cell voltage value is performed in a daisy chain manner and is performed using a serial programming interface (SPI), an I2C, a CAN, a universal asynchronous receiver / Transmitter) can be used.
  • SPI serial programming interface
  • I2C I2C
  • CAN a universal asynchronous receiver / Transmitter
  • the AFE IC 210 includes a determination circuit (not shown) for determining the overcharge / overdischarge state of the corresponding battery module 100, and detects the overcharge / overdischarge of the battery module 100 by itself You may. For example, the AFE IC 210 can determine that the corresponding battery module 100 is in an overcharged state when a cell voltage value above the first threshold value is detected through the determination circuit. Further, for example, when the cell voltage value below the second threshold value is detected through the determination circuit, the AFE IC 210 can determine the corresponding battery module 100 as an over-discharge state.
  • the AFE IC 210 When the overcharge / over-discharge state of the corresponding battery module 100 is detected through the decision circuit provided in the AFE IC 210, the AFE IC 210 outputs an alarm signal to the battery controller 310 to notify the overcharge / over-discharge state.
  • the alarm signal generated by the AFE IC 210 may be used for redundancy check of overcharge / overdischarge in the battery controller 310.
  • Communication for transmitting an alarm signal between the AFE IC 210 and the battery controller 310 is performed in a daisy chain manner and may be performed through a communication path separate from the communication path for transmitting the cell voltage value. That is, the cell voltage values transmitted from the AFE IC 210 and the alarm signal can be transmitted to the battery controller 310 through different communication paths.
  • the master board 300 may include a battery controller 310, a CAN transceiver 320, a switch driver 330, a delay unit 340, a signal combination unit 350, and the like.
  • the battery controller 310 may communicate with the vehicle network to communicate state information of the battery pack to the vehicle network or to receive control signals from the vehicle network.
  • the CAN transceiver 320 may provide a CAN communication interface between the battery controller 310 and the vehicle network.
  • the battery controller 310 receives the cell voltage values of the corresponding battery module 10 from each AFE IC 210, and can determine the overcharge / overdischarge of each battery module 10 using the cell voltage values. For example, the battery controller 310 may determine that the corresponding battery module 100 is in an overcharged state when a cell voltage value equal to or greater than the third threshold value is detected. In addition, for example, when the cell voltage value below the fourth threshold value is detected, the battery controller 310 may determine that the corresponding battery module 100 is in the over-discharge state.
  • the third threshold value used for determining overcharge in the battery controller 310 may be set lower than the first threshold value used for the overcharge determination in the AFE IC 210.
  • the fourth threshold value used by the battery controller 310 for determining overdischarge may be set higher than the second threshold value used for the overdischarge determination in the AFE IC 210.
  • the control priority for the charging / discharging switch unit 400 is in the battery controller 310, and the battery controller 310 malfunctions and can not properly cope with the overcharge / overdischarge state
  • the control authority for the charging / discharging switch unit 400 can be transferred to the AFE IC 210. In this case,
  • the battery controller 310 may monitor an alarm signal received from each AFE IC 210 to detect an overcharge / overdischarge state of the battery modules 100.
  • the battery controller 310 outputs a control signal for controlling the switching of the charging / discharging switch unit 400 to the switch driving unit 330 when the battery module 100 in the overcharged or overdischarged state is detected in the above-described manner.
  • the delay unit 340 includes at least one delay circuit 341 and can delay the alarm signal received from the AFE ICs 210 through each delay circuit 341 with a predetermined time delay.
  • the time delay value delayed by the delay unit 340 is set such that the alarm signal generated by the AFE IC 210 in its own overcharge / overdischarge detection is transferred to the actual charge / discharge switch unit 400, 400 can be set to a time that does not cause a problem in a safe state, that is, a time intervel, that is, a Fault Tolerant Time Interval (FTTI).
  • FTTI Fault Tolerant Time Interval
  • the signal combining unit 350 includes at least one logic circuit 351 and receives switching control signals from the control signal and the alarm signal received from the battery controller 310 and the delay unit 340 via each logic circuit 351, Lt; / RTI > That is, each logic circuit 351 generates a switching control signal by combining the control signal input from the battery controller 310 and the alarm signal input from the corresponding delay circuit 341, and outputs the switching control signal to the switch driver 330 Can be output.
  • Each of the logic circuits 351 can output a switching control signal indicating an open switch when any of the input control signal and the alarm signal indicates an overcharged or overdischarged state.
  • each logic circuit 351 can output a switching control signal indicating a switch close when the input control signal and the alarm signal all indicate a normal state.
  • each logic circuit 351 may be composed of a logic sum (OR) circuit.
  • the switch driver 330 includes at least one driver 331 and can control the switching of the corresponding charge / discharge switch unit 400 through the respective drivers 331. That is, each driver 331 controls the corresponding switch 410 to be in the open state when the input switching control signal indicates the switch open, and when the input switching control signal indicates the switch close, the corresponding switch 410 It can be controlled in the closed state.
  • the charge / discharge switch unit 400 may include at least one switch 410 connected in series between the battery modules 100 and the pack terminals P + and P-.
  • Each switch 410 is connected in series between the battery modules 100 and any one of the pack terminals P + and P-, and can control charging / discharging of the battery modules 100 through switching. That is, each switch 410 can open / close the current flow between the battery module 100 and the load / charge device (not shown) connected through the pack terminals P + and P-.
  • the switch 410 included in the charging / discharging switch unit 400 may be a device that is robust against a high voltage, high current environment such as a relay, a contactor, or the like.
  • each driver 331 can open or close each relay by applying or interrupting a current to the coil of each relay in accordance with an input switching control signal.
  • each driver 331 may open or close each contactor by applying or breaking a current to the electromagnet of the contactor in accordance with an input switching control signal.
  • the battery management system incorporates a physical (hardware) protection function together with a software protection function by the battery controller 310 to double protect the battery pack from external unauthorized access .
  • a physical (hardware) protection function together with a software protection function by the battery controller 310 to double protect the battery pack from external unauthorized access .
  • the battery pack can be protected from a dangerous situation such as overcharge / overdischarge through a physical protection device.
  • Battery module 200 Slave board
  • AFE IC 300 Master board
  • switch driver 331 driver
  • signal combining section 351 logic circuit

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

L'invention concerne un système de gestion de batterie pouvant comprendre : un circuit intégré permettant de détecter des valeurs de tension de cellule d'une pluralité de cellules constituant un module de batterie et de générer un signal d'alarme indiquant si le module de batterie est surchargé ou sur-déchargé sur la base des valeurs de tension de cellule ; un dispositif de commande de batterie permettant de recevoir les valeurs de tension de cellule provenant du circuit intégré, de déterminer sur la base des valeurs de tension de cellule si le module de batterie est surchargé ou sur-déchargé et de délivrer en sortie un premier signal de commande en réponse à un résultat de la détermination ; un circuit logique permettant de délivrer en sortie un second signal de commande à partir du premier signal de commande et du signal d'alarme ; un circuit de retard permettant de retarder le signal d'alarme entré à partir du circuit intégré pendant un temps prédéterminé et de transférer le signal d'alarme retardé au circuit logique ; et une unité de fonctionnement permettant de commander la charge/décharge du module de batterie en fonction du second signal de commande.
PCT/KR2018/014002 2017-12-28 2018-11-15 Système de gestion de batterie et bloc-batterie comportant ce dernier WO2019132245A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2017-0183155 2017-12-28
KR1020170183155A KR102511551B1 (ko) 2017-12-28 2017-12-28 배터리 관리 시스템 및 이를 포함하는 배터리 팩

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112622791A (zh) * 2019-09-24 2021-04-09 比亚迪股份有限公司 一种高压控制系统及车辆

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114407724A (zh) * 2022-02-07 2022-04-29 凯斯达科技有限公司 一种新能源汽车的电池管理系统

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