KR20130061964A - Battery management system and battery management method for vehicle - Google Patents

Battery management system and battery management method for vehicle Download PDF

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KR20130061964A
KR20130061964A KR1020110128306A KR20110128306A KR20130061964A KR 20130061964 A KR20130061964 A KR 20130061964A KR 1020110128306 A KR1020110128306 A KR 1020110128306A KR 20110128306 A KR20110128306 A KR 20110128306A KR 20130061964 A KR20130061964 A KR 20130061964A
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battery
vehicle
operation mode
current
state
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KR101880762B1 (en
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송정용
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현대모비스 주식회사
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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
    • 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
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/10—Measuring sum, difference or ratio
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
    • G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
    • G01R19/16542—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies for batteries
    • 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
    • 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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • 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
    • B60L2260/00—Operating Modes
    • 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
    • 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
    • B60Y2200/92—Hybrid vehicles
    • 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
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • Y02T10/72—Electric energy management in electromobility

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  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Transportation (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Secondary Cells (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

PURPOSE: A vehicle battery management system and a management method thereof are provided to manage a voltage by monitoring a voltage state in the operation state of a vehicle and a voltage state reflected with the change of an electrochemical reaction after charging and discharging processes. CONSTITUTION: A vehicle battery management system includes a vehicle battery(10) and a battery control device(20). The battery control device controls the vehicle battery. The battery control device includes an operation mode determination module(21), a first power supply module(23) and a fault determination module(27). The operation state determination module determines an operation mode for the vehicle battery by sensing whether IG is on or off and the power of an electric component is on or off. The first power supply module controls to supply the power of the electric component to the battery control device, when the IG is on and the power of the electric component is on in a first operation mode. The fault determination module monitors and stores the battery state information periodically, and determines whether a current battery has a fault, by comparing current battery state information with final battery state information. [Reference numerals] (10) Vehicle battery; (20) Battery control device; (21) Operation mode determination module; (23) First power supply module; (25) Second power supply module; (27) Fault determination module; (28) Reporting module

Description

차량용 배터리 관리시스템 및 관리방법{Battery management system and battery management method for vehicle}Battery management system and battery management method {Battery management system and battery management method for vehicle}

본 발명은 차량용 배터리 관리시스템 및 관리방법에 관한 것으로, 구체적으로는 배터리 상태의 모니터링 및 관리를 수행하는 차량용 배터리 관리시스템 및 관리방법에 관한 것이다.The present invention relates to a vehicle battery management system and management method, and more particularly, to a vehicle battery management system and management method for performing the monitoring and management of battery status.

리튬배터리는 하이브리드 차량 및 전기자동차의 전원공급원으로 널리 이용되는 배터리로서, 이를 적용한 차량은 리튬배터리를 관리하기 위한 BMS(Battery management system)를 구비한다.A lithium battery is a battery widely used as a power supply source of a hybrid vehicle and an electric vehicle, and a vehicle to which the lithium battery is applied includes a battery management system (BMS) for managing a lithium battery.

BMS는 B+ 전원 및 IG ON 상태의 정상동작상태에서 리튬배터리의 전압, 전류, 온도 등의 변화율을 실시간으로 모니터링하여, HCU(Hybrid control unit)와 같은 상위제어기에 전달한다.The BMS monitors the rate of change of the voltage, current, and temperature of the lithium battery in real time in the normal operation state of the B + power supply and the IG ON state, and delivers it to an upper controller such as a hybrid control unit (HCU).

예를 들어, BMS는 리튬배터리의 전압 상태에 따라 OVP(Over voltage protection), UVP(Under voltage protection), OTP(Over temperature protection), OCP(Over current protection), SCP(Short circuit protection)등과 같은 기능을 수행하여 상위제어기(HCU)에 상태정보를 전달한다.For example, BMS functions such as over voltage protection (OVP), under voltage protection (UVP), over temperature protection (OTP), over current protection (OCP), and short circuit protection (SCP) depending on the voltage of lithium batteries. Performs the transfer of status information to the upper controller (HCU).

또한 BMS는 리튬배터리의 각 단전지의 전압을 실시간 확인함으로써, 단전지의 최대/최소 전압을 알 수 있으며, 이 편차가 제조사가 정한 임계값을 초과하게 되면 경보신호를 발생한다. 이와 같이 BMS는 단전지들의 전압 편차를 실시간 확인하여, 리튬배터리의 충/방전이 이루어지는 모든 영역에서 안정한 전압상태가 유지되도록 관리한다.In addition, the BMS checks the voltage of each unit of the lithium battery in real time, so that the maximum / minimum voltage of the unit can be known, and an alarm signal is generated when the deviation exceeds the threshold set by the manufacturer. As such, the BMS checks the voltage deviation of the single cells in real time and manages to maintain a stable voltage state in all regions where the lithium battery is charged / discharged.

그러나 종래 BMS는 노멀모드(normal mode), 슬립모드(sleep mode), 셧다운모드(shutdown mode)와 같은 차량의 상태변화에 상관없이, 정해진 일정 루틴의 유지 관리 기능만을 수행하므로, 차량의 상태변화에 대응할 수 있는 효율적인 관리가 어렵다. However, the conventional BMS performs only a maintenance function of a predetermined routine regardless of the state change of the vehicle such as a normal mode, a sleep mode, a shutdown mode, and therefore, it is possible to change the state of the vehicle. Efficient management that can cope is difficult.

또한 종래 BMS는 충 방전 이후 리튬이차전지의 전기 화학적 변화에 대응한 정확한 측정 수단의 개발은 아직 미흡한 실정이다.In addition, the conventional BMS is still insufficient development of accurate measuring means corresponding to the electrochemical change of the lithium secondary battery after the charge and discharge.

특히, 리튬배터리는 전기화학전지로서 차량 전원 공급되지 않더라도 내부에서 전기화학반응이 계속적으로 일어나기 때문에, IG OFF 되더라도 리튬배터리의 상태 변화를 계속적으로 모니터링 할 필요가 있음에도, 종래 BMS는 IG OFF시 동작이 정지되어 리튬배터리의 관리가 불가능하게 되는 문제를 가지고 있다.Particularly, since lithium batteries are electrochemical cells, electrochemical reactions occur continuously even when the vehicle is not supplied with the vehicle, even though it is necessary to continuously monitor the change of the state of lithium batteries even when IG OFF, the conventional BMS does not operate when IG OFF. There is a problem in that the management of the lithium battery becomes impossible because it is stopped.

KR 10-2009-0129212, 2009. 12. 16, 첨부도면 도 1KR 10-2009-0129212, Dec. 16, 2009, attached drawings 1

본 발명의 목적은 차량의 전 동작상태에 걸친 전압상태와 충·방전 이후 전기화학반응의 변화까지 반영된 전압상태를 모니터링 할 수 있고 이에 기반한 전압관리를 수행할 수 있는 차량용 배터리 관리시스템 및 관리방법을 제공하는 것이다.An object of the present invention is to provide a battery management system and management method for a vehicle that can monitor the voltage state over the entire operating state of the vehicle and the voltage state reflected until the change of the electrochemical reaction after charging and discharging, and can perform voltage management based on the same. To provide.

상기 목적을 달성하기 위한 본 발명의 일 특징은, 차량용 배터리 관리시스템에 관한 것으로, 본 차량용 배터리 관리시스템은 차량용 배터리; 및 상기 차량용 배터리를 제어하는 배터리제어장치;를 포함하고, 상기 배터리제어장치는, IG가 온(ON)/오프(OFF) 상태인지 여부 및 전장품 전원이 온(ON)/오프(OFF) 상태인지 여부를 감지하여 상기 차량용 배터리에 대한 동작모드를판단하는 동작모드 판단모듈과; 상기 동작모드 판단모듈에 의해, 상기 IG가 온 된 상태이고 전장품 전원이 온 된 상태인 제1 동작모드로 판단된 경우, 상기 전장품 전원이 상기 배터리제어장치로 공급되도록 제어하는 제1 전원공급모듈과; 배터리상태정보를 사전에 정해진 주기로 모니터링하여 저장하며, 현재 모니터링된 현재 배터리상태정보와 가장 마지막에 저장된 최종 배터리상태정보를 비교하며, 상기 비교결과를 이용하여 현재 배터리의 상태가 이상 있는지 판별하는 이상유무 판별모듈을 구비하는 것이다.One aspect of the present invention for achieving the above object relates to a vehicle battery management system, the vehicle battery management system is a vehicle battery; And a battery control device for controlling the vehicle battery, wherein the battery control device includes: whether the IG is on / off and whether the power supply of the electronic device is on / off; An operation mode determination module for detecting whether the operation mode is determined for the vehicle battery; A first power supply module configured to control the electronic device power to be supplied to the battery control device when it is determined by the operation mode determining module to be the first operation mode in which the IG is on and the electronic device power is on; ; Monitors and stores battery status information at predetermined intervals, compares the currently monitored current battery status information with the last stored battery status information, and determines whether there is an abnormality in the current battery status using the comparison result. It is provided with a discrimination module.

상기 제1 동작모드는 차량의 시동이 온(ON) 된 상태인 노멀모드(normal mode) 또는 차량의 시동이 오프(OFF) 된 상태인 슬립모드(sleep mode)일 수 있다. 여기서 상기 제1 동작모드가 상기 슬립모드인 경우, 상기 최종 배터리상태정보는 차량의 시동이 오프 되기 전 가장 마지막으로 저장된 배터리상태정보일 수 있다.The first operation mode may be a normal mode in which the vehicle is turned on, or a sleep mode in which the vehicle is turned off. Here, when the first operation mode is the sleep mode, the final battery state information may be battery state information last stored before the vehicle is turned off.

상기 배터리제어장치는, 상기 동작모드 판단모듈에 의해, IG가 오프 된 상태이고 전장품 전원이 오프 된 상태인 제2 동작모드로 판단된 경우, 차량의 비상전원이 상기 배터리제어장치로 공급되도록 제어하는 제2 전원공급모듈을 더 구비할 수 있다. 여기서 상기 제2 동작모드는 차량의 시동이 오프(ON) 된 상태인 셧다운모드(shutdown mode)일 수 있다.The battery control device is configured to control the emergency power of the vehicle to be supplied to the battery control device when it is determined by the operation mode determination module to be the second operation mode in which IG is off and electric equipment power is off. It may further include a second power supply module. The second operation mode may be a shutdown mode in which the vehicle is turned off.

상기 이상유무 판별모듈은, 상기 현재 배터리상태정보 중 현재 전압값(V_new)과 상기 최종 배터리상태정보 중 최종 전압값(V_old)의 전압차이값(V_diff)을 산출하여 상기 사전에 정해진 주기로 저장하고, 상기 가장 나중에 저장된 최종 전압차이값(V_diff_1))과 현재 산출된 현재 전압차이값(V_diff_0)을 비교하여 산출된 전압변동편차값(V_drop)이 사전에 정해진 허용편차값(Max drop votage) 보다 큰 경우 상기 현재 차량용 배터리의 상태가 이상이 있는 것으로 판별할 수 있다.The abnormality determination module calculates a voltage difference value V_diff between a current voltage value V_new of the current battery state information and a final voltage value V_old of the final battery state information, and stores the voltage difference value V_diff at predetermined intervals. When the voltage difference deviation value V_drop calculated by comparing the latest stored last voltage difference value V_diff_1 and the presently calculated current voltage difference value V_diff_0 is greater than a predetermined allowable maximum drop votage value. It may be determined that the current state of the vehicle battery is abnormal.

상기 이상유무 판별모듈은, 배터리 이상유무를 판별하기 위해 사전에 정해진 SOC값에 대한 기준전압값이 설정된 룩업테이블을 구비하고, 상기 현재 배터리상태정보 중 현재 SOC값(SOC_new)과 상기 최종 배터리상태정보 중 최종 SOC값(V_old)의 SOC차이값(SOC_diff)을 산출하고, 상기 산출된 SOC차이값과 상기 현재 배터리상태정보 중 현재 전압값을 상기 룩업테이블과 비교하여 상기 차량용 배터리의 현재 상태가 이상 있는지 판별할 수 있다.The abnormality determination module includes a look-up table in which a reference voltage value with respect to a predetermined SOC value is set to determine whether the battery is abnormal, and a current SOC value (SOC_new) and the final battery state information among the current battery state information. The SOC difference value SOC_diff of the final SOC value V_old is calculated, and the calculated SOC difference value and the current voltage value of the current battery state information are compared with the look-up table to determine whether the current state of the vehicle battery is abnormal. Can be determined.

상기 배터리제어장치는 차량의 상위 제어기에 연동되고, 상기 현재 배터리상태정보와 상기 최종 배터리상태정보의 비교결과 및 상기 이상유무 판별모듈에 의해 판별된 배터리의 이상유무를 상기 차량의 상위 제어기로 전달하는 리포팅모듈을 더 구비할 수 있다.The battery control apparatus is linked to an upper controller of the vehicle, and transmits a result of comparing the current battery status information with the final battery status information and the abnormality of the battery determined by the abnormality determination module to the upper controller of the vehicle. It may further include a reporting module.

상기 목적을 달성하기 위한 본 발명의 또 다른 특징은, 차량용 배터리 관리방법에 관한 것으로, 본 차량용 배터리 관리방법은 IG가 온(ON)/오프(OFF) 상태인지 여부 및 전장품 전원이 온(ON)/오프(OFF) 상태인지 여부를 감지하여 상기 차량용 배터리에 대한 동작모드를 판단하는 동작모드 판단단계; 상기 동작모드 판단단계에 의해, IG가 온 된 상태이고 전장품 전원이 온 된 상태인 제1 동작모드로 판단된 경우, 상기 전장품 전원이 상기 배터리제어장치로 공급되도록 제어하는 제1 전원공급단계; 상기 동작모드 판단단계에 의해, IG가 오프 된 상태이고 전장품 전원이 오프 된 상태인 제2 동작모드로 판단된 경우, 차량의 비상전원이 상기 배터리제어장치로 공급되도록 제어하는 제2 전원공급단계; 및 배터리상태정보를 사전에 정해진 주기로 모니터링하여 저장하며, 현재 모니터링된 현재 배터리상태정보와 가장 마지막에 저장된 최종 배터리상태정보를 비교하며, 상기 비교결과를 이용하여 현재 배터리의 상태가 이상 있는지 판별하는 이상유무판별단계;를 포함하는 것이다.Another aspect of the present invention for achieving the above object, relates to a vehicle battery management method, the vehicle battery management method is whether the IG is ON (ON) / off (OFF) state and the electrical power supply (ON) An operation mode determination step of determining whether an operation mode for the vehicle battery is detected by detecting whether an on / off state is present; A first power supply step of controlling the electric appliance power to be supplied to the battery control device when it is determined by the operation mode determining step that the first operation mode is in a state where IG is on and electric power is turned on; A second power supply step of controlling emergency power of the vehicle to be supplied to the battery control device when it is determined by the operation mode determining step that the second operation mode is in a state in which IG is off and power of the electronic device is turned off; And monitoring and storing the battery status information at a predetermined cycle, comparing the currently monitored current battery status information with the last stored battery status information, and determining whether the current battery status is abnormal using the comparison result. Presence or absence discrimination step; to include.

상기 이상유무판별단계는, 상기 현재 배터리상태정보 중 현재 전압값(V_new)과 상기 최종 배터리상태정보 중 최종 전압값(V_old)의 전압차이값(V_diff)을 산출하여 상기 사전에 정해진 주기로 저장하는 과정과; 상기 가장 나중에 저장된 최종 전압차이값(V_diff_1))과 현재 산출된 현재 전압차이값(V_diff_0)을 비교하여 전압변동편차값(V_drop)을 산출하는 과정과; 상기 산출된 전압변동편차값(V_drop)이 사전에 정해진 허용편차값(Max drop votage) 보다 큰 경우 상기 현재 차량용 배터리의 상태가 이상이 있는 것으로 판별하는 과정을 구비할 수 있다.The abnormality discrimination step may include: calculating a voltage difference value V_diff between a current voltage value V_new of the current battery state information and a final voltage value V_old of the final battery state information, and storing the voltage difference value V_diff at a predetermined period. and; Calculating a voltage variation deviation value V_drop by comparing the most recently stored final voltage difference value V_diff_1 and the currently calculated current voltage difference value V_diff_0; If the calculated voltage fluctuation value V_drop is greater than a predetermined allowable maximum drop value, the current vehicle battery may be determined to be in an abnormal state.

도 1은 본 발명의 일 실시예에 따른 차량용 배터리 관리시스템의 블록도이다.
도 2는 도 1의 동작모드 판단모듈의 동작을 설명하기 위한 표이다.
도 3은 본 발명의 일 실시예에 따른 차량용 배터리 관리시스템의 제어절차도이다.1 is a block diagram of a vehicle battery management system according to an embodiment of the present invention.
2 is a table for describing an operation of an operation mode determination module of FIG. 1.
3 is a control process diagram of a vehicle battery management system according to an embodiment of the present invention.

이하 첨부된 도면들을 참조하여 본 발명의 일 실시예에 따른 차량용 배터리 관리시스템에 대하여 구체적으로 설명한다.Hereinafter, a vehicle battery management system according to an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명의 일 실시예에 따른 차량용 배터리 관리시스템의 블록도이다. 도 1을 참조하면, 본 실시예에 따른 차량용 배터리 관리시스템(1)은 차량용 배터리(10), 이를 제어하는 배터리제어장치(20)로 이루어질 수 있다.1 is a block diagram of a vehicle battery management system according to an embodiment of the present invention. Referring to FIG. 1, the vehicle battery management system 1 according to the present exemplary embodiment may include a vehicle battery 10 and a battery control device 20 controlling the vehicle battery 10.

차량용 배터리(10)는 예를 들면 하이브리드자동차(HEV) 또는 전기자동차(EV)에 적용되는 이차전지 배터리로 주로 리튬배터리가 적용될 수 있다. 차량용 배터리(10)는 배터리제어장치(20)의 제어에 의해 모니터링 및 관리된다.The vehicle battery 10 is, for example, a secondary battery battery applied to a hybrid vehicle (HEV) or an electric vehicle (EV), and a lithium battery may be mainly applied. The vehicle battery 10 is monitored and managed by the control of the battery controller 20.

배터리제어장치(20)는 차량용 배터리(10)의 전압, 전류, 온도 및 SOC와 같은 배터리상태정보를 모니터링하고, 이를 이용하여 차량용 배터리(10)의 상태를 관리한다. 또한, 배터리제어장치(20)는 상위제어기, 즉 하이브리드자동차의 경우 HCU(Hybrid Control Unit)에 연동하며, 모니터링된 배터리상태정보를 전송할 수 있다.The battery controller 20 monitors battery state information such as voltage, current, temperature, and SOC of the vehicle battery 10, and manages the state of the vehicle battery 10 by using the same. In addition, the battery control apparatus 20 may be linked to a higher controller, that is, a hybrid control unit (HCU) in the case of a hybrid vehicle, and may transmit monitored battery state information.

배터리제어장치(20)는, 도 1에 도시된 바와 같이, 동작모드 판단모듈(21), 제1 전원공급모듈(23), 제2 전원공급모듈(25), 이상유무 판별모듈(27), 리포팅모듈(28)로 구분될 수 있다. 이러한 구분은 설명의 편의를 위한 것으로 본 실시예에 따른 배터리제어장치(20)가 반드시 도 1에 도시된 바와 같은 기능블록으로 구분되는 것은 아니다.As shown in FIG. 1, the battery control apparatus 20 may include an operation mode determination module 21, a first power supply module 23, a second power supply module 25, an abnormality determination module 27, It may be divided into the reporting module 28. This division is for convenience of description and the battery control apparatus 20 according to the present embodiment is not necessarily divided into functional blocks as shown in FIG. 1.

동작모드 판단모듈(21)은, 연동된 외부장치로부터 입력된 정보에 의해 IG가 온(ON)/오프(OFF) 상태인지 여부 및 전장품 전원이 온(ON)/오프(OFF) 상태인지 여부를 감지하여 차량용 배터리(10)에 대한 동작모드를 판단한다.The operation mode determination module 21 determines whether the IG is ON / OFF and whether the power supply of the electronic device is ON / OFF according to information input from the connected external device. By sensing, the operation mode for the vehicle battery 10 is determined.

제1 전원공급모듈(23)은 동작모드 판단모듈(21)에 의해, IG가 온 된 상태이고 전장품 전원이 온 된 상태인 제1 동작모드로 판단된 경우, 전장품 전원(B+)이 배터리제어장치(20)로 공급되도록 제어한다. When the first power supply module 23 is determined by the operation mode determination module 21 to be the first operation mode in which IG is on and the electrical power is turned on, the electronic device power supply B + is the battery control device. Control to be supplied to (20).

여기서 제1 동작모드는 도 2에 도시된 표와 같이 차량의 시동이 온(ON) 된 상태인 노멀모드(normal mode) 또는 차량의 시동이 오프(OFF) 된 상태인 슬립모드(sleep mode)일 수 있다. 즉 노멀모드는 시동이 온, IG가 온 및 전장품 전원(B+)가 온 된 경우이고, 슬립모드는 시동이 오프, IG가 온 및 전장품 전원(B+)가 온 된 경우이다.Here, the first operation mode may be a normal mode in which the vehicle is turned on (ON) or a sleep mode in which the vehicle is turned off (OFF) as shown in the table shown in FIG. 2. Can be. In other words, the normal mode is when the startup is turned on, the IG is turned on, and the electric power supply (B +) is turned on. The sleep mode is when the start is turned off, the IG is turned on and the electric power supply (B +) is turned on.

이와 같이 제1 전원공급모듈(23)은 차량의 상태가 노멀모드 또는 슬립모드인 경우, 배터리제어장치(20)가 차량의 정상전원을 이용하여 동작하도록 전장품 전원을 배터리제어장치(20)로 공급한다.As such, when the state of the vehicle is the normal mode or the sleep mode, the first power supply module 23 supplies the electrical equipment power to the battery controller 20 so that the battery controller 20 operates using the normal power of the vehicle. do.

제2 전원공급모듈(25)은 동작모드 판단모듈(21)에 의해, IG가 오프 된 상태이고 전장품 전원(B+)이 오프 된 상태인 제2 동작모드로 판단된 경우, 차량의 비상전원이 배터리제어장치(20)로 공급되도록 제어한다.When the second power supply module 25 determines that the operation mode determination module 21 is the second operation mode in which IG is off and the electrical appliance power supply B + is turned off, the emergency power of the vehicle is stored in the battery. Control to be supplied to the control device 20.

여기서 제2 동작모드는 도 2에 도시된 표와 같이, 차량의 상태가 시동이 온, IG가 오프 및 전장품 전원(B+)이 온 또는 오프인 셧다운모드(shutdown mode)일 수 있다.Here, as shown in the table shown in FIG. 2, the second operation mode may be a shutdown mode in which the state of the vehicle is on, IG is off, and the power supply B + is on or off.

즉, 제2 전원공급모듈(25)은 차량의 상태가 셧다운모드인 경우, 배터리제어장치(20)가 차량의 비상전원으로 동작하도록 비상전원을 배터리제어장치(20)로 공급한다.That is, when the state of the vehicle is in the shutdown mode, the second power supply module 25 supplies the emergency power to the battery controller 20 so that the battery controller 20 operates as the emergency power of the vehicle.

이와 같이, 본 실시예에 따른 차량용 배터리 관리시스템(1)은 제2 전원공급모듈(25)에 의해 종래와 달리 셧다운모드 상태에서도 차량용 배터리의 모니터링 및 관리가 가능하다.As such, the vehicle battery management system 1 according to the present exemplary embodiment may monitor and manage the vehicle battery even in the shutdown mode unlike the conventional state by the second power supply module 25.

이상유무 판별모듈(27)은 차량용 배터리(10)의 전압, 전류, 온도 및 SOC와 같은 배터리상태정보를 사전에 정해진 주기로 모니터링하여 저장한다. 또한 이상유무 판별모듈(27)은 현재모니터링되는 현재 배터리상태정보와 가장 마지막에 저장된 최종 배터리상태정보를 비교하며, 비교결과를 이용하여 현재 배터리의 상태가 이상 있는지 판별한다. 특히, 제1 동작모드가 슬립모드인 경우, 최종 배터리상태정보는 차량의 시동이 오프 되기 전 가장 마지막으로 저장된 배터리상태정보일 수 있다.The abnormality determination module 27 monitors and stores battery state information such as voltage, current, temperature, and SOC of the vehicle battery 10 at predetermined cycles. In addition, the abnormality determination module 27 compares the current battery state information currently monitored with the last battery state information stored last, and determines whether the current battery state is abnormal by using the comparison result. In particular, when the first operation mode is the sleep mode, the final battery state information may be the battery state information last stored before the vehicle is turned off.

예를 들면, 이상유무 판단모듈(27)은 현재 배터리상태정보 중 현재 전압값(V_new)과 최종 배터리상태정보 중 최종 전압값(V_old)의 전압차이값(V_diff)을 산출하여 사전에 정해진 주기로 저장한다. For example, the abnormality determination module 27 calculates and stores the voltage difference value V_diff between the current voltage value V_new of the current battery state information and the final voltage value V_old of the final battery state information at predetermined intervals. do.

또한, 이상유무 판단모듈(27)은 가장 나중에 저장된 최종 전압차이값(V_diff_1)과 현재 산출된 현재 전압차이값(V_diff_0)을 비교하여 산출된 전압변동편차값(V_drop)이 사전에 정해진 허용편차값(Max drop votage) 보다 큰 경우 현재 차량용 배터리(10)의 상태가 이상이 있는 것으로 판별할 수 있다.In addition, the abnormality determination module 27 compares the last stored last voltage difference value V_diff_1 with the presently calculated current voltage difference value V_diff_0 to determine a predetermined deviation value V_drop. If greater than (Max drop votage) it can be determined that the current state of the vehicle battery 10 is abnormal.

한편, 이상유무 판별모듈(27)은 사전에 정해진 SOC값에 대한 기준전압값이 설정된 룩업테이블에 의해 이루어질 수 있다. 이러한 방식은 전술한 방식과 병행하거나 독립하여 수행될 수 있다. On the other hand, the abnormality determination module 27 may be made by a look-up table in which a reference voltage value for a predetermined SOC value is set. This approach may be performed in parallel or independently of the foregoing.

이상유무 판별모듈(27)은 모니터링된 현재 배터리상태정보 중 현재 SOC값(SOC_new)과 저장된 최종 배터리상태정보 중 최종 SOC값(V_old)의 SOC차이값(SOC_diff)을 산출하고, 산출된 SOC차이값과 현재 배터리상태정보 중 현재 전압값을 사전에 설정된 룩업테이블과 비교하여 현재 배터리의 상태가 이상 있는지 판별한다. 여기서 룩업테이블은 본 실시예에 따른 차량용 배터리(10)에 대해 실험을 통해 축적되어 정해진 것으로, 정상인 경우 SOC차이값에 대한 전압값으로 정해진다.The abnormality determination module 27 calculates the SOC difference value SOC_diff of the current SOC value SOC_new of the monitored current battery state information and the final SOC value V_old among the stored last battery state information, and calculates the calculated SOC difference value. And compares the current voltage value among the current battery state information with a preset lookup table to determine whether the current battery state is abnormal. Here, the lookup table is determined by accumulating and accumulating the vehicle battery 10 according to the present exemplary embodiment, and when it is normal, is determined as a voltage value with respect to the SOC difference value.

예를 들면, 이상유무 판별모듈(27)은 산출된 SOC차이값이 10%이고 이 때 현재 전압값이 3.8V로 감지된 경우, 룩업테이블의 비교데이타가 SOC값 10%에 대해 전압값이 4V인 경우, 오차허용범위가 0.2V라면 차량용 배터리(10)의 현재 상태를 정상으로 판별할 수 있다. For example, if the abnormality determination module 27 detects that the calculated SOC difference value is 10% and the current voltage value is 3.8V, the comparison data of the lookup table is 4V for the SOC value 10%. In the case where the error tolerance range is 0.2V, the current state of the vehicle battery 10 may be determined to be normal.

반면, 산출된 SOC차이값 10%에 대해 현재 전압값이 4.2V로 감지된 경우, 이상유무 판별모듈(27)은 차량용 배터리(10)의 현재 상태가 이상이 있다고 판별할 수 있다.On the other hand, when the current voltage value is detected as 4.2V for the calculated SOC difference value 10%, the abnormality determination module 27 may determine that the current state of the vehicle battery 10 is abnormal.

리포팅모듈(28)은 차량의 상위 제어기에 연동되고, 현재 배터리상태정보와 상기 최종 배터리상태정보의 비교결과 및 이상유무 판별모듈(27)에 의해 판별된 배터리의 이상유무를 차량의 상위 제어기로 전달한다.The reporting module 28 is linked to the upper controller of the vehicle and transmits the result of comparing the current battery status information with the final battery status information and the abnormality of the battery determined by the abnormality determination module 27 to the upper controller of the vehicle. do.

이하에서는, 도 3을 참조하여, 본 발명의 일 실시예에 따른 차량용 배터리 관리시스템(1)의 동작을 설명한다. 도 3은 본 발명의 일 실시예에 따른 차량용 배터리 관리시스템의 제어절차도이다.Hereinafter, with reference to FIG. 3, the operation of the vehicle battery management system 1 according to an embodiment of the present invention. 3 is a control process diagram of a vehicle battery management system according to an embodiment of the present invention.

먼저, 배터리제어장치(20)는 시동이 온(ON)/오프(OFF) 상태인지 여부, IG가 온(ON)/오프(OFF) 상태인지 여부 및 전장품 전원이 온(ON)/오프(OFF) 상태인지 여부를 감지하여 도 2의 표에 근거로 차량용 배터리(10)에 대한 동작모드를 판단한다(S310).First, the battery controller 20 may determine whether startup is ON / OFF, whether the IG is ON / OFF, and whether the power supply of the electronic device is ON / OFF. In operation S310, the operation mode of the vehicle battery 10 is determined based on the detection of the state of the vehicle.

S310 단계의 판단결과 동작모드가 셧다운모드인 경우, 배터리제어장치(20)는 비상전원을 배터리제어장치(20)로 공급하고(S312), 반면, S310 단계의 판단결과 동작모드가 노멀모드 또는 슬립모드인 경우 정상전원을 배터리제어장치(20)로 공급한다(S316).In operation S310, when the operation mode is the shutdown mode, the battery controller 20 supplies emergency power to the battery controller 20 (S312), while in operation S310, the operation mode is the normal mode or the sleep mode. If the mode is supplied to the normal power supply to the battery control device 20 (S316).

다음, 배터리제어장치(20)는 현재 배터리상태정보 중 현재 SOC값(SOC_new)과 최종 배터리상태정보 중 최종 SOC값(V_old)의 SOC차이값(SOC_diff)을 산출한다(S320).Next, the battery controller 20 calculates a SOC difference value SOC_diff of the current SOC value SOC_new of the current battery state information and the final SOC value V_old of the final battery state information (S320).

다음, 배터리제어장치(20)는 현재 배터리상태정보 중 현재 전압값(V_new)과 상기 최종 배터리상태정보 중 최종 전압값(V_old)의 전압차이값(V_diff)을 산출하여 사전에 정해진 주기로 저장한다(S330).Next, the battery controller 20 calculates and stores the voltage difference value V_diff between the current voltage value V_new of the current battery state information and the final voltage value V_old of the final battery state information at a predetermined period ( S330).

다음, 배터리제어장치(20)는 가장 나중에 저장된 최종 전압차이값(V_diff_1))과 현재 산출된 현재 전압차이값(V_diff_0)을 비교하여 전압변동편차값(V_drop)을 산출한다(S340).Next, the battery controller 20 calculates the voltage variation deviation value V_drop by comparing the last stored voltage difference value V_diff_1 with the currently calculated current voltage difference value V_diff_0 (S340).

다음, 배터리제어장치(20)는 산출된 전압변동편차값(V_drop)이 사전에 정해진 허용편차값(Max drop votage) 보다 큰 경우 현재 차량용 배터리의 상태가 이상이 있는 것으로 판별한다(S350). Next, when the calculated voltage fluctuation value V_drop is larger than a predetermined allowable deviation value Max drop votage, the battery controller 20 determines that the current state of the vehicle battery is abnormal (S350).

여기서 배터리제어장치(20)는 위의 S350단계와 병행하여 산출된 SOC차이값(SOC_diff)과 현재 배터리상태정보 중 현재 전압값을 룩업테이블과 비교하여 차량용 배터리(10)의 현재 상태가 이상 있는지 판별할 수 있다.Here, the battery control apparatus 20 determines whether the current state of the vehicle battery 10 is abnormal by comparing the look-up table with a current voltage value among the SOC difference value SOC_diff and the current battery state information calculated in parallel with step S350. can do.

이와 같이, 본 실시예에 따른 차량용 배터리 관리시스템(1)은 이중으로 배터리 상태를 모니터링함으로써 더욱 안전한 배터리관리가 가능하다. In this way, the vehicle battery management system 1 according to the present embodiment can be more safely battery management by monitoring the battery status double.

다음, 배터리제어장치(20)는 현재 배터리상태정보와 최종 배터리상태정보의 비교결과 및 판별된 배터리의 이상유무를 차량의 상위 제어기(하이브리드자동차의 경우, HCU)로 전달하고 저장한다(S360).Next, the battery control apparatus 20 transmits and stores the comparison result of the current battery state information and the final battery state information and whether the determined battery is abnormal to the upper controller of the vehicle (HCU in the case of a hybrid vehicle) (S360).

이와 같이, 본 실시예에 따른 차량용 배터리 관리시스템(1)은 차량용 배터리(10)의 충·방전 전후의 시간에 따른 전기화학적 변화에 대응한 차량용 배터리(10)의 상태를 모니터링할 수 있어 종래에 비해 보다 정확한 배터리 상태에 대한 모니터링이 가능하고, 차량의 상태변화 따른 배터리 상태 모니터링 및 관리가 가능하며, IG 오프 시에도 비상전원을 통한 지속적인 배터리의 모니터링 및 관리가 가능하다.As such, the vehicle battery management system 1 according to the present exemplary embodiment may monitor the state of the vehicle battery 10 corresponding to the electrochemical change with time before and after the vehicle battery 10 is charged and discharged. Compared to the more accurate battery status, it is possible to monitor and manage the battery status according to the change of vehicle status, and it is possible to continuously monitor and manage the battery through the emergency power even when IG off.

1: 차량용 배터리 관리시스템
20: 배터리제어장치
21: 동작모드 판단모듈
23: 제1 전원 공급모듈
25: 제2 전원 공급모듈
27: 이상유무 판별모듈
28: 리포팅모듈1: Vehicle Battery Management System
20: battery controller
21: operation mode judgment module
23: first power supply module
25: second power supply module
27: abnormality determination module
28: reporting module

Claims (10)

차량용 배터리; 및
상기 차량용 배터리를 제어하는 배터리제어장치;를 포함하고,
상기 배터리제어장치는,
IG가 온(ON)/오프(OFF) 상태인지 여부 및 전장품 전원이 온(ON)/오프(OFF) 상태인지 여부를 감지하여 상기 차량용 배터리에 대한 동작모드를판단하는 동작모드 판단모듈과;
상기 동작모드 판단모듈에 의해, 상기 IG가 온 된 상태이고 전장품 전원이 온 된 상태인 제1 동작모드로 판단된 경우, 상기 전장품 전원이 상기 배터리제어장치로 공급되도록 제어하는 제1 전원공급모듈과;
배터리상태정보를 사전에 정해진 주기로 모니터링하여 저장하며, 현재 모니터링된 현재 배터리상태정보와 가장 마지막에 저장된 최종 배터리상태정보를 비교하며, 상기 비교결과를 이용하여 현재 배터리의 상태가 이상 있는지 판별하는 이상유무 판별모듈을 구비하는 것을 특징으로 하는 차량용 배터리 관리시스템.Vehicle batteries; And
And a battery controller for controlling the vehicle battery.
The battery control device,
An operation mode determination module for determining whether an IG is in an ON / OFF state and whether an electric power supply is in an ON / OFF state to determine an operation mode for the vehicle battery;
A first power supply module configured to control the electronic device power to be supplied to the battery control device when it is determined by the operation mode determining module to be the first operation mode in which the IG is on and the electronic device power is on; ;
Monitors and stores battery status information at predetermined intervals, compares the currently monitored current battery status information with the last stored battery status information, and determines whether there is an abnormality in the current battery status using the comparison result. Vehicle battery management system comprising a determination module. 제1항에 있어서,
상기 제1 동작모드는 차량의 시동이 온(ON) 된 상태인 노멀모드(normal mode) 또는 차량의 시동이 오프(OFF) 된 상태인 슬립모드(sleep mode)인 것을 특징으로 하는 차량용 배터리 관리시스템.The method of claim 1,
The first operation mode is a battery management system for a vehicle, characterized in that the normal mode (start mode) in the state that the start of the vehicle (ON) or the sleep mode (sleep mode) in the state that the start of the vehicle is off (OFF) . 제2항에 있어서,
상기 제1 동작모드가 상기 슬립모드인 경우, 상기 최종 배터리상태정보는 차량의 시동이 오프 되기 전 가장 마지막으로 저장된 배터리상태정보인 것을 특징으로 하는 차량용 배터리 관리시스템.The method of claim 2,
And when the first operation mode is the sleep mode, the final battery state information is battery state information last stored before the vehicle is turned off. 제1항에 있어서,
상기 배터리제어장치는, 상기 동작모드 판단모듈에 의해, IG가 오프 된 상태이고 전장품 전원이 오프 된 상태인 제2 동작모드로 판단된 경우, 차량의 비상전원이 상기 배터리제어장치로 공급되도록 제어하는 제2 전원공급모듈을 더 구비하는 것을 특징으로 하는 차량용 배터리 관리시스템.The method of claim 1,
The battery control device is configured to control the emergency power of the vehicle to be supplied to the battery control device when it is determined by the operation mode determination module to be the second operation mode in which IG is off and electric equipment power is off. And a second power supply module. 제4항에 있어서,
상기 제2 동작모드는 차량의 시동이 오프(ON) 된 상태인 셧다운모드(shutdown mode)인 것을 특징으로 하는 차량용 배터리 관리시스템.5. The method of claim 4,
And the second operation mode is a shutdown mode in which the vehicle is turned off. 제1항에 있어서,
상기 이상유무 판별모듈은, 상기 현재 배터리상태정보 중 현재 전압값(V_new)과 상기 최종 배터리상태정보 중 최종 전압값(V_old)의 전압차이값(V_diff)을 산출하여 상기 사전에 정해진 주기로 저장하고, 상기 가장 나중에 저장된 최종 전압차이값(V_diff_1))과 현재 산출된 현재 전압차이값(V_diff_0)을 비교하여 산출된 전압변동편차값(V_drop)이 사전에 정해진 허용편차값(Max drop votage) 보다 큰 경우 상기 현재 차량용 배터리의 상태가 이상이 있는 것으로 판별하는 것을 특징으로 하는 차량용 배터리 관리시스템.The method of claim 1,
The abnormality determination module calculates a voltage difference value V_diff between a current voltage value V_new of the current battery state information and a final voltage value V_old of the final battery state information, and stores the voltage difference value V_diff at predetermined intervals. When the voltage difference deviation value V_drop calculated by comparing the latest stored last voltage difference value V_diff_1 and the presently calculated current voltage difference value V_diff_0 is greater than a predetermined allowable maximum drop votage value. A vehicle battery management system, characterized in that it is determined that the state of the current vehicle battery is abnormal. 제1항에 있어서,
상기 이상유무 판별모듈은, 배터리 이상유무를 판별하기 위해 사전에 정해진 SOC값에 대한 기준전압값이 설정된 룩업테이블을 구비하고, 상기 현재 배터리상태정보 중 현재 SOC값(SOC_new)과 상기 최종 배터리상태정보 중 최종 SOC값(V_old)의 SOC차이값(SOC_diff)을 산출하고, 상기 산출된 SOC차이값과 상기 현재 배터리상태정보 중 현재 전압값을 상기 룩업테이블과 비교하여 상기 차량용 배터리의 현재 상태가 이상 있는지 판별하는 것을 특징으로 하는 차량용 배터리 관리시스템.The method of claim 1,
The abnormality determination module includes a look-up table in which a reference voltage value with respect to a predetermined SOC value is set to determine whether the battery is abnormal, and a current SOC value (SOC_new) and the final battery state information among the current battery state information. The SOC difference value SOC_diff of the final SOC value V_old is calculated, and the calculated SOC difference value and the current voltage value of the current battery state information are compared with the look-up table to determine whether the current state of the vehicle battery is abnormal. Vehicle battery management system, characterized in that for determining. 제1항에 있어서,
상기 배터리제어장치는 차량의 상위 제어기에 연동되고, 상기 현재 배터리상태정보와 상기 최종 배터리상태정보의 비교결과 및 상기 이상유무 판별모듈에 의해 판별된 배터리의 이상유무를 상기 차량의 상위 제어기로 전달하는 리포팅모듈을 더 구비하는 것을 특징으로 하는 차량용 배터리 관리시스템.The method of claim 1,
The battery control apparatus is linked to an upper controller of the vehicle, and transmits a result of comparing the current battery status information with the final battery status information and the abnormality of the battery determined by the abnormality determination module to the upper controller of the vehicle. Vehicle battery management system characterized in that it further comprises a reporting module. 차량용 배터리 관리방법에 있어서,
IG가 온(ON)/오프(OFF) 상태인지 여부 및 전장품 전원이 온(ON)/오프(OFF) 상태인지 여부를 감지하여 상기 차량용 배터리에 대한 동작모드를판단하는 동작모드 판단단계;
상기 동작모드 판단단계에 의해, IG가 온 된 상태이고 전장품 전원이 온 된 상태인 제1 동작모드로 판단된 경우, 상기 전장품 전원이 상기 배터리제어장치로 공급되도록 제어하는 제1 전원공급단계;
상기 동작모드 판단단계에 의해, IG가 오프 된 상태이고 전장품 전원이 오프 된 상태인 제2 동작모드로 판단된 경우, 차량의 비상전원이 상기 배터리제어장치로 공급되도록 제어하는 제2 전원공급단계; 및
배터리상태정보를 사전에 정해진 주기로 모니터링하여 저장하며, 현재 모니터링된 현재 배터리상태정보와 가장 마지막에 저장된 최종 배터리상태정보를 비교하며, 상기 비교결과를 이용하여 현재 배터리의 상태가 이상 있는지 판별하는 이상유무판별단계;를
포함하는 것을 특징으로 하는 차량용 배터리 관리방법.In the vehicle battery management method,
An operation mode determination step of determining an operation mode for the vehicle battery by detecting whether an IG is in an ON / OFF state and whether an electric power supply is in an ON / OFF state;
A first power supply step of controlling the electric appliance power to be supplied to the battery control device when it is determined by the operation mode determining step that the first operation mode is in a state where IG is on and electric power is turned on;
A second power supply step of controlling emergency power of the vehicle to be supplied to the battery control device when it is determined by the operation mode determining step that the second operation mode is in a state in which IG is off and power of the electronic device is turned off; And
Monitors and stores battery status information at predetermined intervals, compares the currently monitored current battery status information with the last stored battery status information, and determines whether there is an abnormality in the current battery status using the comparison result. Determination step;
Vehicle battery management method comprising a. 제9항에 있어서, 상기 이상유무판별단계는,
상기 현재 배터리상태정보 중 현재 전압값(V_new)과 상기 최종 배터리상태정보 중 최종 전압값(V_old)의 전압차이값(V_diff)을 산출하여 상기 사전에 정해진 주기로 저장하는 과정과; 상기 가장 나중에 저장된 최종 전압차이값(V_diff_1))과 현재 산출된 현재 전압차이값(V_diff_0)을 비교하여 전압변동편차값(V_drop)을 산출하는 과정과; 상기 산출된 전압변동편차값(V_drop)이 사전에 정해진 허용편차값(Max drop votage) 보다 큰 경우 상기 현재 차량용 배터리의 상태가 이상이 있는 것으로 판별하는 과정을 구비하는 것을 특징으로 하는 차량용 배터리 관리방법.The method of claim 9, wherein the abnormality discrimination step,
Calculating a voltage difference value V_diff between a current voltage value V_new of the current battery state information and a final voltage value V_old of the final battery state information and storing the voltage difference value V_diff at the predetermined period; Calculating a voltage variation deviation value V_drop by comparing the most recently stored final voltage difference value V_diff_1 and the currently calculated current voltage difference value V_diff_0; And determining that the current state of the vehicle battery is abnormal when the calculated voltage fluctuation value V_drop is larger than a predetermined allowable deviation value Max drop votage. .
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