WO2015020420A1 - 전지팩의 절연저항을 결정하는 시스템 및 방법 - Google Patents
전지팩의 절연저항을 결정하는 시스템 및 방법 Download PDFInfo
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- WO2015020420A1 WO2015020420A1 PCT/KR2014/007258 KR2014007258W WO2015020420A1 WO 2015020420 A1 WO2015020420 A1 WO 2015020420A1 KR 2014007258 W KR2014007258 W KR 2014007258W WO 2015020420 A1 WO2015020420 A1 WO 2015020420A1
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- voltage level
- housing
- electrical terminal
- insulation resistance
- output
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/025—Measuring very high resistances, e.g. isolation resistances, i.e. megohm-meters
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- 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]
- G01R31/389—Measuring internal impedance, internal conductance or related variables
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- 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]
- G01R31/385—Arrangements for measuring battery or accumulator variables
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/14—Measuring resistance by measuring current or voltage obtained from a reference source
Definitions
- the present invention relates to a system and method for determining the insulation resistance of a battery pack.
- the secondary battery is classified into a cylindrical battery and a rectangular battery in which the electrode assembly is embedded in a cylindrical or rectangular metal can, and a pouch type battery in which the electrode assembly is embedded in a pouch type case of an aluminum laminate sheet. do.
- a pouch type battery is a battery in which an electrode assembly having a cathode / separation membrane / cathode structure is built in a battery case in which a laminate sheet including a resin layer and a metal layer is formed in a pouch.
- the metal layer of the laminate sheet of the battery case needs to be electrically insulated.
- Korean Patent Application Laid-Open No. 2001-106481 exposes the outer surface of the metal foil in the laminated sheet constituting the battery case to form an exposed portion, and the exposed portion and A battery inspection method is disclosed which compares a voltage between an electrode lead and a voltage between a positive electrode lead and a negative electrode lead.
- the battery since the battery must be fully charged in order to measure the insulation resistance, it requires a lot of time and cost to measure the insulation resistance, and the measured insulation resistance value varies according to the degree of charge. There is a problem that measurement is difficult.
- the inventors of the present application recognized the need for an improved system and method for measuring the insulation resistance of a battery pack.
- the battery pack includes a housing and at least a first battery module and a second battery module disposed in the housing.
- the battery pack further includes a first electric terminal and a second electric terminal.
- the system includes a voltage source electrically connected to the first and second electrical terminals of the battery pack.
- the voltage source includes a first output voltage level (first) between the first electrical terminal and the second electrical terminal at a first time when the first battery module and the second battery module are not electrically connected in series. It is further configured to apply an output voltage level.
- the system further includes a voltage meter configured to measure a first voltage level between the first electrical terminal and the housing when the first output voltage level is output.
- the voltage meter is further configured to measure a second voltage level between the first electrical terminal and the housing when the first output voltage level is output and a resistor having a set resistance level is electrically connected between the first electrical terminal and the housing. It is.
- the voltage meter is further configured to measure a third voltage level between the second electrical terminal and the housing when the first output voltage level is output.
- the voltage meter is further configured to measure a fourth voltage level between the second electrical terminal and the housing when the first output voltage level is output and a resistor is electrically connected between the second electrical terminal and the housing.
- the system further includes a microprocessor programmed to operably communicate with the voltage meter.
- the microprocessor is configured to determine a battery pack-related first isolation resistance value based on a first voltage level, a second voltage level, a third voltage level, and a set resistance level at a first time. More programmed. The microprocessor is further programmed to determine, at a first time, the battery pack related second insulation resistance based on the first voltage level, the third voltage level, the fourth voltage level, and the set resistance level. The microprocessor is further configured to determine which of the first insulation resistance value and the second insulation resistance value have a minimum value relative to each other so as to store the minimum value of the first insulation resistance value and the second insulation resistance value in a storage device. It is programmed.
- the battery pack includes a housing and at least a first battery module and a second battery module disposed in the housing.
- the battery pack further includes a first electric terminal and a second electric terminal.
- the method applies a first output voltage level between a first electrical terminal and a second electrical terminal at a first time using a voltage source when the first battery module and the second battery module are not electrically connected in series. It includes the process of doing.
- the method further includes measuring a first voltage level between the first electrical terminal and the housing when the first output voltage level is output using the voltage meter.
- the method uses a voltage meter to measure a second voltage level between the first electrical terminal and the housing when the first output voltage level is output and a resistor having a set resistance level is electrically connected between the first electrical terminal and the housing. It further includes the process of measuring. The method further includes measuring a third voltage level between the second electrical terminal and the housing when the first output voltage level is output using a voltage meter. The method further comprises the step of measuring a fourth voltage level between the second electrical terminal and the housing using a voltage meter when the first output voltage level is output and a resistor is electrically connected between the second electrical terminal and the housing. It is included.
- the method further includes determining, using a microprocessor, a battery pack related first insulation resistance value based on a first voltage level, a second voltage level, a third voltage level, and a set resistance level at a first time. Doing. The method further includes determining, using a microprocessor, a battery pack related second insulation resistance value based on the first voltage level, the third voltage level, the fourth voltage level, and the set resistance level at a first time. Doing. The method uses a microprocessor to determine which of the first insulation resistance value and the second insulation resistance value have a minimum value relative to each other, thereby storing the minimum value of the first insulation resistance value and the second insulation resistance value. The process of storing more.
- FIG. 1 is a schematic diagram of an insulation resistance determination system of a battery pack according to an embodiment of the present invention
- FIGS. 2 and 3 are flowcharts of a method for determining insulation resistance of a battery pack according to another embodiment of the present invention.
- FIG. 4 is a graph of an insulation resistance curve of an exemplary battery pack that may be determined using the system of FIG. 1.
- an insulation resistance determination system 10 of a battery pack 20 according to an embodiment of the present invention is provided.
- System 10 includes voltage source 40, voltage meter 50, microprocessor 60, electrical switches 70, 72, 74, 76, 78, 80, 82, resistor 90, and storage device ( 93).
- An advantage of the system 10 is that it utilizes a voltage source 40 that repeatedly provides a set voltage to the battery pack 20 while determining the insulation resistance of the battery pack 20.
- Another advantage of the system 10 is that the battery pack 20 does not need to be fully charged to determine the insulation resistance of the battery pack 20.
- the battery pack 20 is provided to generate power required for an electric vehicle or a hybrid electric vehicle.
- the battery pack 20 includes a housing 95, battery modules 100 and 110, an electric switch 82, a first electric terminal 120, and a second electric terminal 130.
- the housing 95 includes battery modules 110 and 110 electrically connected in series with each other.
- the first electrical terminal 120 is electrically connected to the negative terminal of the battery module 110.
- the second electrical terminal 130 is electrically connected to the positive terminal of the battery module 100.
- the negative terminal of the battery module 100 is electrically connected to the first side of the electric switch 82.
- the positive terminal of the battery module 110 is electrically connected to the second surface of the electric switch 82.
- the electrical switch 82 is an electrically driven switch and has a normally-closed operational position.
- the electrical switch 82 is a microcontroller such that the battery modules 100 and 110 are not electrically connected in series to each other so that the system 10 can inspect the insulation resistance of the battery pack 20 as described in detail below. In response to the control signal of the processor 60, the switch is switched to the open movable position.
- the electrical switch 82 may be removed so that the negative terminal of the battery module 100 is not electrically connected to the positive terminal of the battery module 110 when performing the insulation resistance test described below.
- an open circuit may exist between the negative electrode terminal of the battery module 100 and the positive electrode terminal of the battery module 110 during the insulation resistance test described below.
- the vehicle chassis 30 is configured to fix the battery pack 20 thereon.
- the battery modules 100 and 110 are optionally electrically connected to the housing 95 to determine the insulation resistance of the battery pack 20.
- the housing 95 may be further electrically connected to the vehicle undercarriage 30.
- the voltage source 40 is configured to be electrically connected to the first electrical terminal 120 and the second electrical terminal 130 of the battery pack 20.
- the voltage source 40 is configured to apply an output voltage level representing the exemplary output voltage level to be output by the battery pack 20 between the first electrical terminal 120 and the second electrical terminal 130.
- voltage source 40 outputs a voltage of 100 to 600 Vdc.
- voltage source 40 has an upper current limit of 10 milli-Amp.
- the voltage meter 50 is configured to measure the first voltage level V1 between the first electrical terminal 120 and the housing 95. When the voltage meter 50 measures the first voltage level V1, the electrical switches 70, 80 each have a closed actuation position and the remaining switches have an open actuation position. The voltage meter 50 is further configured to send data related to the first voltage level V1 to the microprocessor 60. In one specific example, the internal resistance of the voltage meter 50 is at least 10 mega-Ohm.
- the voltage meter 50 has a second voltage level between the first electrical terminal 120 and the housing 95 when the resistor 90 is electrically connected between the first electrical terminal 120 and the housing 95. It is further configured to measure V2). When the voltage meter 50 measures the second voltage level V2, the electrical switches 70, 80, 76 each have a closed actuation position and the remaining switches have an open actuation position.
- resistor 90 has a set resistance level R0, such as, for example, 200 kilo-Ohm.
- the voltage meter 50 is further configured to send data related to the second voltage level V2 to the microprocessor 60.
- the voltage meter 50 is further configured to measure the third voltage level V3 between the second electrical terminal 130 and the housing 95.
- the electrical switches 72 and 80 each have a closed actuation position and the remaining switches have an open actuation position.
- the voltage meter 50 is further configured to send data related to the third voltage level V3 to the microprocessor 60.
- the voltage meter 50 is provided between the second electrical terminal 130 and the housing 95 when the resistor 90 is electrically connected between the second electrical terminal 130 and the housing 95. It is further configured to measure the fourth voltage level V4. When the voltage meter 50 measures the fourth voltage level V4, the electrical switches 72, 74, 80 each have a closed actuation position and the remaining switches have an open actuation position. The voltage meter 50 is further configured to send data related to the fourth voltage level V4 to the microprocessor 60.
- the switches 70, 72, 74, 76, 78, 80 are electrically driven switches.
- the switches 70 to 80 have a closed movable position or an open movable position.
- Microprocessor 60 generates control signals that are received by switches 70-80 and induce switches 70-80 to have a closed movable position.
- the microprocessor 60 generates a control signal received by the switch 70 to induce the switch 70 to have a closed movable position.
- the switches 70-80 are switched to the open movable position.
- switch 70 is switched to the open movable position.
- the switch 70 is electrically connected between the first electrical terminal 120 of the battery pack 20 and the first electrical terminal 150 of the voltage meter 50.
- the switch 72 is electrically connected between the second electrical terminal 130 of the battery pack 20 and the first electrical terminal 150 of the voltage meter 50.
- the switch 74 is electrically connected between the second electrical terminal 130 of the battery pack 20 and the node 92.
- the resistor 90 is electrically connected between the node 92 and the housing 95.
- the switch 76 is electrically connected between the node 92 and the first electrical terminal 120 of the battery pack 20.
- the switch 78 is electrically connected between the first electrical terminal 120 of the battery pack 20 and the second electrical terminal 151 of the voltage meter 50.
- the switch 80 is electrically connected between the second electrical terminal 151 of the voltage meter 50 and the housing 95.
- the microprocessor 60 is configured to operatively communicate with the voltage meter 50.
- R1 R0 (1 + V3 / V1) [(V1 V2) / V2).
- other isolation equations defined in SAE1766, FMVSS305, or ECE324 Rule 100 may be used.
- R2 R0 (1 + V1 / V3) [(V3 V4) / V4).
- SAE1766, FMVSS305, or ECE324 Rule 100 instead of the above equation for the calculation of R2, another isolation equation defined in SAE1766, FMVSS305, or ECE324 Rule 100 may be used.
- step 254 the microprocessor 60 determines whether the voltage level is greater than or equal to a threshold voltage level. If the value of step 254 is equal to "yes”, the method advances to step 256. If not, it will exit.
- step 256 the voltage source 40 is the first electric terminal 120 and the second electric terminal 130 when the first battery module 100 and the second battery module 110 is not electrically connected in series with each other. Apply the output voltage level of voltage_level magnitude between). In one specific example, the battery pack 20 may be fully charged to less than 50%. The method proceeds to step 258 after step 256.
- step 258 the voltage meter 50 measures the first voltage level V1 between the first electrical terminal 120 and the housing 95 when the output voltage level is output, and measures the first voltage level V1.
- the data corresponding to) is transmitted to the microprocessor 60.
- Step 258 is followed by step 260.
- step 260 the voltage meter 50, when the output voltage level is output and the resistor 90 is electrically connected between the first electrical terminal 120 and the housing 95, the first electrical terminal 120 The second voltage level V2 is measured between the housing 95 and the data corresponding to the second voltage level V2 is transmitted to the microprocessor 60. Resistor 90 has a set resistance level. Step 260 is followed by step 262.
- step 262 the voltage meter 50 measures the third voltage level V3 between the second electrical terminal 130 and the housing 95 when the output voltage level is output, and the third voltage level. Data related to the V3 is transmitted to the microprocessor 60. Step 262 is followed by step 264.
- step 264 the voltage meter 50, when the output voltage level is output and the resistor 90 is electrically connected between the second electrical terminal 130 and the housing 95, the second electrical terminal 130. And measures a fourth voltage level V4 between the housing 95 and transmits data related to the fourth voltage level V4 to the microprocessor 60. Step 264 is followed by step 266.
- the microprocessor 60 may perform a first operation on the battery pack 20 based on the first voltage level V1, the second voltage level V2, the third voltage level V3, and the set resistance level. Determine the insulation resistance value R1. After step 266, the process proceeds to step 268.
- step 268 the microprocessor 60 generates a second associated battery pack 20 based on the first voltage level V1, the third voltage level V3, the fourth voltage level V4, and the set resistance level. Determine the insulation resistance value (R2). Step 268 is followed by step 270.
- step 270 the microprocessor 60 determines whether the first insulation resistance value R1 is less than or equal to the second insulation resistance value R2. If the value of step 270 is equal to "Yes,” then step 272 is reached. Otherwise, go to Step 274.
- the method may be at least partially embedded in one or more computer readable media containing computer-executable instructions for executing the same.
- the computer readable media includes one or more hard drives, flash memory, CD-ROMs, and other computer readable media known to those skilled in the art.
- computer executable instructions When computer executable instructions are loaded and executed by one or more microprocessors or computers, the one or more microprocessors or computers become tools for carrying out the invention and are programmed to perform the methods.
- FIG. 4 there is shown a graph of an exemplary insulation resistance curve 300 associated with a battery pack 20 that can be determined using the system 10.
- the graph has an X axis corresponding to the voltage level applied to the battery pack 20 by the voltage source 40.
- the graph further has a Y axis corresponding to the insulation resistance of the battery pack 20. As shown, since the voltage level applied to the battery pack 20 changes, the insulation resistance of the battery pack 20 changes.
- the system and method of determining the insulation resistance of the battery pack 20 provides significant advantages over other systems and methods.
- the system 10 and the method may be configured to determine the voltage of the battery pack while determining the insulation resistance so that the battery pack 20 does not need to be fully charged to determine the insulation resistance of the battery pack 20.
- the technical effect of using the voltage source provided to 20 is provided.
- the system and method for determining the insulation resistance of a battery pack according to the present invention provides significant advantages over other systems and methods.
- the system and method provide a technical effect of using a voltage source that provides a set voltage to the battery pack while determining the insulation resistance so that the battery pack does not need to be fully charged to determine the insulation resistance of the battery pack. .
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- General Physics & Mathematics (AREA)
- Secondary Cells (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
Description
Claims (5)
- 하우징과 상기 하우징 내에 배치되어 있는 적어도 제 1 전지모듈 및 제 2 전지모듈을 포함하고, 제 1 전기단자 및 제 2 전기단자를 더 포함하는 전지팩의 절연저항(isolation resistance)을 결정하는 시스템으로서,상기 전지팩의 제 1 전기단자 및 제 2 전기단자에 전기적으로 연결되어 있고, 상기 제 1 전지모듈과 제 2 전지모듈이 서로 전기적으로 직렬 연결되어 있지 않을 때, 제 1 시기(first time)에 상기 제 1 전기단자와 제 2 전기단자 사이에 제 1 출력전압 수준(first output voltage level)을 인가하도록 구성되어 있는 전압원(voltage source);상기 제 1 출력전압 수준이 출력될 때, 제 1 전기단자와 하우징 사이의 제 1 전압 수준(first voltage level)을 측정하도록 구성되어 있는 전압 측정기(voltage meter); 및상기 전압 측정기와 작동가능하게(operably) 통신하도록 프로그램 되어 있는 마이크로프로세서로서, 상기 제 1 시기에 제 1 전압 수준, 제 2 전압 수준, 제 3 전압 수준, 및 설정된 저항 수준(resistance level)에 기반한 전지팩 관련 제 1 절연저항(first isolation resistance value)을 결정하도록 더 프로그램 되어있는 마이크로프로세서;를 포함하고 있으며,상기 전압 측정기는, 제 1 출력전압 수준이 출력되고 설정된 저항 수준을 가진 저항이 제 1 전기단자와 하우징 사이에 전기적으로 연결될 때, 제 1 전기단자와 하우징 사이의 제 2 전압 수준을 측정하도록 더 구성되어 있으며;상기 전압 측정기는, 제 1 출력전압 수준이 출력될 때, 제 2 전기단자와 하우징 사이의 제 3 전압 수준을 측정하도록 더 구성되어 있고;상기 전압 측정기는, 제 1 출력전압 수준이 출력되고 제 2 전기단자와 하우징 사이에 저항이 전기적으로 연결될 때, 상기 제 2 전기단자와 하우징 사이의 제 4 전압 수준을 측정하도록 더 구성되어 있으며;상기 마이크로프로세서는, 제 1 전압 수준, 제 3 전압 수준, 제 4 전압 수준, 및 설정된 저항 수준에 기반한 전지팩 관련 제 2 절연저항을 결정하도록 더 프로그램 되어 있고;상기 마이크로프로세서는, 제 1 절연저항 값과 제 2 절연저항 값의 어느 것이 서로 상대적으로 최소 값을 가지는 지를 결정하여, 제 1 절연저항 값과 제 2 절연저항 값의 최소값을 저장 장치에 저장하도록 더 프로그램 되어있는 것을 특징으로 하는 전지팩의 절연저항 결정 시스템.
- 제 1 항에 있어서,상기 전압원은, 상기 제 1 전지모듈과 제 2 전지모듈이 서로 전기적으로 직렬 연결되어 있지 않을 때, 제 2 시기에 제 1 전기단자와 제 2 전기단자 사이에 제 2 출력전압 수준을 인가하도록 더 구성되어 있으며, 상기 제 2 시기는 제 1 시기 이후이고, 상기 제 2 출력전압 수준은 제 1 출력전압 수준보다 크며;상기 전압 측정기는, 상기 제 2 출력전압 수준이 출력될 때, 제 1 전기단자와 하우징 사이의 제 5 전압 수준을 측정하도록 더 구성되어 있고;상기 전압 측정기는, 상기 제 2 출력전압 수준이 출력되고 제 1 전기단자와 하우징 사이에 저항이 전기적으로 연결될 때, 제 1 전기단자와 하우징 사이의 제 6 전압 수준을 측정하도록 더 구성되어 있으며;상기 전압 측정기는, 상기 제 2 출력전압 수준이 출력될 때, 제 2 전기단자와 하우징 사이의 제 7 전압 수준을 측정하도록 더 구성되어 있고;상기 전압 측정기는, 상기 제 2 출력전압 수준이 출력되고 제 2 전기단자와 하우징 사이에 저항이 전기적으로 연결될 때, 상기 제 2 전기단자와 하우징 사이의 제 8 전압 수준을 측정하도록 더 구성되어 있으며;상기 마이크로프로세서는, 제 2 시기에 제 5 전압 수준, 제 6 전압 수준, 제 7 전압 수준, 및 설정된 저항 수준에 기반한 전지팩 관련 제 3 절연저항 값을 결정하도록 더 프로그램 되어 있고;상기 마이크로프로세서는, 제 2 시기에 제 5 전압 수준, 제 7 전압 수준, 제 8 전압 수준, 및 설정된 저항 수준에 기반한 전지팩 관련 제 4 절연저항 값을 결정하도록 더 프로그램 되어 있으며;상기 마이크로프로세서는, 제 3 절연저항 값과 제 4 절연저항 값의 어느 것이 서로 상대적으로 최소 값을 가지는 지를 결정하여, 제 3 절연저항 값과 제 4 절연저항 값의 최소값을 저장 장치에 저장하도록 더 프로그램 되어있는 것을 특징으로 하는 전지팩의 절연저항 결정 시스템.
- 제 1 항에 있어서, 상기 전지팩은 50% 미만으로 만충전(fully charged) 되어 있는 것을 특징으로 하는 전지팩의 절연저항 결정 시스템.
- 하우징과 상기 하우징 내에 배치되어 있는 적어도 제 1 전지모듈 및 제 2 전지모듈을 포함하고, 제 1 전기단자 및 제 2 전기단자를 더 포함하는 전지팩의 절연저항을 결정하는 방법으로서,상기 제 1 전지모듈과 제 2 전지모듈이 서로 전기적으로 직렬 연결되어 있지 않을 때, 전압원을 이용하여 제 1 시기에 제 1 전기단자와 제 2 전기단자 사이에 제 1 출력전압 수준을 인가하는 과정;전압 측정기를 이용하여, 상기 제 1 출력전압 수준이 출력될 때 제 1 전기단자와 하우징 사이의 제 1 전압 수준을 측정하는 과정;상기 제 1 출력전압 수준이 출력되고 설정된 저항 수준을 가진 저항이 제 1 전기단자와 하우징 사이에 전기적으로 연결될 때, 전압 측정기를 이용하여 제 1 전기단자와 하우징 사이의 제 2 전압 수준을 측정하는 과정;상기 전압 측정기를 이용하여, 제 1 출력전압 수준이 출력될 때 제 2 전기단자와 하우징 사이의 제 3 전압 수준을 측정하는 과정;상기 제 1 출력전압 수준이 출력되고 제 2 전기단자와 하우징 사이에 저항이 전기적으로 연결될 때, 전압 측정기를 이용하여 제 2 전기단자와 하우징 사이의 제 4 전압 수준을 측정하는 과정;마이크로프로세서를 이용하여, 상기 제 1 시기에 제 1 전압 수준, 제 2 전압 수준, 제 3 전압 수준, 및 설정된 저항 수준에 기반한 전지팩 관련 제 1 절연저항 값을 결정하는 과정;상기 마이크로프로세서를 이용하여, 제 1 시기에 제 1 전압 수준, 제 3 전압 수준, 제 4 전압 수준, 및 설정된 저항 수준에 기반한 전지팩 관련 제 2 절연저항 값을 결정하는 과정; 및상기 마이크로프로세서를 이용하여, 제 1 절연저항 값과 제 2 절연저항 값의 어느 것이 서로 상대적으로 최소값을 가지는 지를 결정하여, 제 1 절연저항 값과 제 2 절연저항 값의 최소값을 저장 장치에 저장하는 과정;을 포함하는 것을 특징으로 하는 전지팩의 절연저항 결정 방법.
- 제 4 항에 있어서,상기 제 1 전지모듈과 제 2 전지모듈이 서로 전기적으로 직렬 연결되어 있지 않을 때, 전압원을 이용하여 제 2 시기에 제 1 전기단자와 제 2 전기단자 사이에 제 2 출력전압 수준을 인가하는 과정으로서, 제 2 시기는 제 1 시기 이후이고, 상기 제 2 출력전압 수준은 제 1 출력전압 수준보다 크게 구성되어 있는 과정;상기 전압 측정기를 이용하여, 제 2 출력전압 수준이 출력될 때, 제 1 전기단자와 하우징 사이의 제 5 전압 수준을 측정하는 과정;상기 제 2 출력전압 수준이 출력되고 제 1 전기단자와 하우징 사이에 저항이 전기적으로 연결될 때, 전압 측정기를 이용하여 제 1 전기단자와 하우징 사이의 제 6 전압 수준을 측정하는 과정;상기 전압 측정기를 이용하여, 제 2 출력전압 수준이 출력될 때, 제 2 전기단자와 하우징 사이의 제 7 전압 수준을 측정하는 과정;상기 제 2 출력전압 수준이 출력되고 제 2 전기단자와 하우징 사이에 저항이 전기적으로 연결될 때, 전압 측정기를 이용하여 제 2 전기단자와 하우징 사이의 제 8 전압 수준을 측정하는 과정;상기 마이크로프로세서를 이용하여, 제 2 시기에 제 5 전압 수준, 제 6 전압 수준, 제 7 전압 수준, 및 설정된 저항 수준에 기반한 전지팩 관련 제 3 절연저항 값을 결정하는 과정;상기 마이크로프로세서를 이용하여, 제 2 시기에 제 5 전압 수준, 제 7 전압 수준, 제 8 전압 수준, 및 설정된 저항 수준에 기반한 전지팩 관련 제 4 절연저항 값을 결정하는 과정; 및상기 마이크로프로세서를 이용하여, 제 3 절연저항 값과 제 4 절연저항 값의 어느 것이 서로 상대적으로 최소값을 가지는 지를 결정하여, 제 3 절연저항 값과 제 4 절연저항 값의 최소값을 저장 장치에 저장하는 과정;을 포함하는 것을 특징으로 하는 전지팩의 절연저항 결정 방법.
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KR1020167000999A KR101713049B1 (ko) | 2013-08-07 | 2014-08-06 | 전지팩의 절연저항을 결정하는 시스템 및 방법 |
EP14835375.8A EP3012644B1 (en) | 2013-08-07 | 2014-08-06 | System and method for determining insulation resistance of battery pack |
CN201480042930.1A CN105452885B (zh) | 2013-08-07 | 2014-08-06 | 用于确定电池组的隔离电阻的***和方法 |
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US20150042350A1 (en) | 2015-02-12 |
CN105452885B (zh) | 2018-03-16 |
JP6054000B2 (ja) | 2016-12-27 |
KR20160026994A (ko) | 2016-03-09 |
KR101713049B1 (ko) | 2017-03-07 |
US9164151B2 (en) | 2015-10-20 |
JP2016527508A (ja) | 2016-09-08 |
CN105452885A (zh) | 2016-03-30 |
EP3012644B1 (en) | 2020-08-05 |
EP3012644A4 (en) | 2016-08-10 |
EP3012644A1 (en) | 2016-04-27 |
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