WO2013151355A1 - 고장 자가 진단 기능을 구비한 절연 저항 측정 장치 및 이를 이용한 자가 진단 방법 - Google Patents
고장 자가 진단 기능을 구비한 절연 저항 측정 장치 및 이를 이용한 자가 진단 방법 Download PDFInfo
- Publication number
- WO2013151355A1 WO2013151355A1 PCT/KR2013/002817 KR2013002817W WO2013151355A1 WO 2013151355 A1 WO2013151355 A1 WO 2013151355A1 KR 2013002817 W KR2013002817 W KR 2013002817W WO 2013151355 A1 WO2013151355 A1 WO 2013151355A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- insulation resistance
- resistance measuring
- battery
- voltage
- value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Images
Classifications
-
- 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
- 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
-
- 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
-
- 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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
-
- 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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
-
- 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
- G01R27/16—Measuring impedance of element or network through which a current is passing from another source, e.g. cable, power line
- G01R27/18—Measuring resistance to earth, i.e. line to ground
-
- 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]
- G01R31/392—Determining battery ageing or deterioration, e.g. state of health
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
-
- 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
Definitions
- the present invention relates to an insulation resistance measuring apparatus having a fault self-diagnosis function and a fault self-diagnosis method using the same, and more particularly, an apparatus capable of measuring the insulation resistance of a battery employed in a battery power supply system requiring a high voltage.
- the present invention relates to a device and a method for diagnosing a failure of a device.
- the insulation resistance value calculated by the insulation resistance measuring device is not accurate, the effect of using the device is halved, and thus the above-described problems caused by the leakage current cannot be solved.
- the accurate insulation resistance value cannot be measured, and the measured insulation resistance value cannot be relied on. Accordingly, there is a need for an apparatus and method for diagnosing a failure of an insulation resistance measuring apparatus.
- the present invention has been made in view of the prior art as described above, and an object thereof is to provide an insulation resistance measuring apparatus having a fault self-diagnosis function and a fault self-diagnosis method using the same.
- an insulation resistance measuring apparatus having a fault self-diagnosis function, the first insulation resistance measuring unit and the second insulation resistance measuring unit respectively connected to a positive terminal and a negative terminal of a battery; First and second switches connecting the first insulation resistance measurement unit and the second insulation resistance measurement unit to the positive terminal and the negative terminal, respectively; A voltage detector configured to sense first and second diagnostic voltages through the first and second insulation resistance measuring units; And outputting a control signal to the first and second switches to form a diagnostic circuit, and using the first and second diagnostic voltages received when the diagnostic circuit is formed from the voltage detector and a circuit equation derived from the diagnostic circuit. And a controller for determining whether the insulation resistance measuring device has failed.
- the second insulation resistance measuring unit according to the present invention may further include a DC power supply unit.
- control unit determines whether the insulation resistance measuring apparatus has failed based on whether the following equation is established when the first and second diagnostic voltages are substituted into the following equation.
- V Bat battery voltage value
- V diag1 first diagnostic voltage
- V diag2 second diagnostic voltage
- V DC voltage value of DC power supply unit
- R 1 first resistance value
- R 2 second resistance value
- control unit determines whether or not the failure is based on whether the value calculated through the above equation falls within a preset error range based on the voltage value of the battery.
- the controller may determine that a failure has occurred when the value calculated by the above equation differs by more than 1% based on the voltage value of the battery.
- the insulation resistance measuring apparatus having a failure self-diagnosis function may further include a memory unit for storing a battery voltage value, a voltage value of a DC power supply unit, a first resistance value, and a second resistance value.
- the control unit for outputting a signal for controlling the on-off operation of the first and second switches;
- An A / D converter for converting an analog voltage signal output from the voltage detector into a digital voltage signal;
- a central processor configured to receive a digital voltage signal from the A / D converter and determine a of the insulation resistance measuring apparatus.
- the insulation resistance measuring apparatus having a failure self-diagnosis function may further include a transmission unit forming a communication interface with an external device, wherein the control unit transmits the information on whether the insulation resistance measurement apparatus has failed. It transmits to an external device through the unit.
- the external device may be a battery analysis device or a control device of a system in which a battery is mounted.
- the insulation resistance measuring apparatus having a fault self-diagnosis function may further include a warning unit for outputting a visual or audio warning signal, wherein the control unit determines that a failure has occurred in the insulation resistance measuring apparatus.
- the warning unit may output a visual or audio warning signal.
- a failure self-diagnosis method of an insulation resistance measuring apparatus may be performed by connecting first and second insulation resistance measurement units to a positive or negative terminal of a battery using a first switch and a second switch.
- a method of self-diagnosing whether an insulation resistance measuring apparatus has failed by using first and second diagnostic voltages detected by first and second insulation resistance measuring units comprising: (a) a control signal to the first switch and the second switch; Outputting to form a diagnostic circuit; (b) receiving first and second diagnostic voltages detected through the first and second insulation resistance measuring units; And (c) determining whether an insulation resistance measuring apparatus is faulty using the first and second diagnostic voltages and circuit equations derived from the diagnostic circuit.
- the second insulation resistance measuring unit according to the present invention may further include a DC power supply unit.
- step (c) includes determining whether a failure of the insulation resistance measuring apparatus is determined based on whether the following equation is established when the first and second diagnostic voltages are substituted into the following equation; to be.
- V Bat battery voltage value
- V diag1 first diagnostic voltage
- V diag2 second diagnostic voltage
- V DC voltage value of DC power supply unit
- R 1 first resistance value
- R 2 second resistance value
- the step (c) determines whether the failure is based on whether or not the value calculated through the equation falls within a preset error range based on the voltage value of the battery.
- step (c) it is determined that a failure has occurred when the value calculated by the above equation differs by more than 1% based on the voltage value of the battery.
- the failure self-diagnosis method of the insulation resistance measuring apparatus may further include storing a battery voltage value, a voltage value of a DC power applying unit, a first resistance value, and a second resistance value.
- the failure self-diagnosis method of the insulation resistance measuring apparatus may further include transmitting information on whether the insulation resistance measuring apparatus has failed to an external device through the transmitter.
- the step of providing a visual or audio warning to the user may further include.
- the user or an external device is notified of the failure, so that the user can take action.
- FIG. 1 is a circuit diagram schematically illustrating an equivalent circuit of an insulation resistance measuring apparatus having a fault self-diagnosis function and a battery power supply system according to an exemplary embodiment of the present invention.
- FIG. 2 is a circuit diagram schematically illustrating an equivalent circuit of an insulation resistance measuring apparatus having a fault self-diagnosis function according to an exemplary embodiment of the present invention.
- FIG. 3 is a circuit diagram schematically illustrating a first circuit according to an exemplary embodiment of the present invention.
- FIG. 4 is a circuit diagram schematically illustrating a second circuit according to an exemplary embodiment of the present invention.
- FIG. 5 is a circuit diagram schematically illustrating a diagnostic circuit according to an exemplary embodiment of the present invention.
- FIG. 6 is a block diagram showing the configuration of a control unit according to an embodiment of the present invention.
- FIG. 7 is a flowchart illustrating a flow of a method for diagnosing a failure of an insulation resistance measuring apparatus according to an exemplary embodiment of the present invention.
- FIG. 1 is a circuit diagram schematically showing an equivalent circuit of an insulation resistance measuring apparatus 100 having a fault self-diagnosis function and a battery power supply system according to an exemplary embodiment of the present invention.
- the insulation resistance measuring apparatus 100 having a fault self-diagnosis function includes a battery 10 having a plurality of cells connected in series and / or in parallel to form a cell assembly.
- the battery 10 is connected between the positive and negative terminals of the battery 10.
- the battery 10 has a structure in which a plurality of unit cells rechargeable with electrical energy storage means are electrically connected.
- the unit cell is an electric double layer capacitor or a secondary battery such as a lithium ion battery, a lithium polymer battery, a nickel cadmium battery, a nickel hydrogen battery, a nickel zinc battery, and the like including an ultra capacitor.
- a lithium ion battery a lithium polymer battery
- a nickel cadmium battery a nickel hydrogen battery
- nickel zinc battery a nickel zinc battery
- ultra capacitor such as a lithium ion battery, a lithium polymer battery, a nickel cadmium battery, a nickel hydrogen battery, a nickel zinc battery, and the like including an ultra capacitor.
- the battery 10 when the battery 10 is a battery used in an electric vehicle or a hybrid vehicle, the battery 10 outputs high voltage DC power of 200V or more.
- the present invention is not limited by the type of battery, output voltage, charging capacity, and the like.
- the load 20 may be configured as a driving motor M, a DC to DC converter (not shown), or the like of an electric vehicle or a hybrid vehicle.
- the load 20 may include a DC / DC cap C1 and Y-caps C2 and C3 to remove noise generated by the driving motor M.
- FIG. The DC / DC cap C1 removes high frequency noise generated by the drive motor M by employing a capacitor having a large capacity, and the Y-caps C2 and C3 remove low frequency noise generated by the drive motor M. do.
- the insulation resistance measuring apparatus 100 having a fault self-diagnosis function according to the present invention is connected between the positive and negative terminals of the battery 10 to measure the insulation resistance of the battery 10.
- the insulation resistance measurement algorithm will be briefly described with reference to FIG. 2.
- FIG. 2 is a circuit diagram schematically showing an equivalent circuit of the insulation resistance measuring apparatus 100 with a fault self-diagnosis function according to the present invention.
- the insulation resistance measuring apparatus 100 having a fault self-diagnosis function includes a first insulation resistance measuring unit 110, a second insulation resistance measuring unit 120, and a first switch ( SW1), the second switch SW2, the voltage detector 130 and the controller 140.
- the first switch SW1 selectively connects the first insulation resistance measuring unit 110 to the positive terminal of the battery 10.
- the first switch SW1 performs an on-off operation by a control signal of the controller 140. Therefore, the first insulation resistance measuring unit 110 is selectively connected to the positive terminal of the battery 10 by the control signal of the controller 140.
- a circuit formed by connecting the first insulation resistance measuring unit 110 to the positive terminal of the battery 10 is referred to as a first circuit for better understanding of the present invention.
- the first circuit is formed, the voltage at the positive terminal side of the battery is applied to the first insulation resistance measuring unit 110.
- the second switch SW2 selectively connects the second insulation resistance measuring unit 120 to the negative terminal of the battery 10.
- the second switch SW2 performs an on-off operation by a control signal of the controller 140. Accordingly, the second insulation resistance measuring unit 120 is selectively connected to the negative terminal of the battery 10 by the control signal of the controller 140.
- a circuit formed by connecting the second insulation resistance measuring unit 120 to the negative terminal of the battery 10 is referred to as a second circuit to help understanding of the present invention.
- the second circuit is formed, the voltage on the negative terminal side of the battery is applied to the second insulation resistance measuring unit 120.
- the second insulation resistance measuring unit 120 further includes a DC power supply unit (DC).
- DC DC power supply unit
- the first and second insulation resistance measuring units 110 and 120 include a plurality of resistance elements.
- the resistance values of the plurality of resistance elements may be arbitrarily selected to set a range of voltages applied to the respective resistance elements by the battery 10.
- the value of the resistor may be appropriately selected so that the voltage range sensed by the voltage detector 130 is 5V or less.
- FIG. 2 illustrates an embodiment in which the first and second insulation resistance measuring units 110 and 120 are configured of the first and second resistors R 1 and R 2 , but the present invention is not limited thereto. Do not.
- the embodiment shown in Figure 2 is to help the understanding of the present invention, the first and second insulation resistance measuring unit (110, 120) is the same for the first and second resistors (R 1 , R) for simplicity of the drawings It is to be understood that the embodiment is illustrated by 2 ). It will be apparent to those skilled in the art that the number of resistance elements, the resistance value of each resistance element, etc. may be variously set.
- first insulation resistance measuring unit 110 and the second insulation resistance measuring unit 120 are illustrated as including only a resistance element, the voltage of the battery 10 other than the resistance element may be applied to measure the voltage. It is to be understood that known electrical components that are present can be added and replaced.
- the voltage detector 130 senses an insulation detection voltage applied to the first and second insulation resistance measuring units 110 and 120.
- the insulation detection voltage is a voltage applied to the second resistor R 2 .
- the insulation detection voltage is used to calculate an insulation resistance value of the battery 10.
- a voltage applied to the second resistor R 2 included in the first insulation resistance measuring unit 110 is referred to as a first insulation detection voltage V 1 .
- a voltage applied to the second resistor R 2 included in the second insulation resistance measuring unit 120 is called a second insulation detection voltage V 2 .
- the voltage detector 130 outputs signals corresponding to the first and second insulation detection voltages V 1 and V 2 to the controller 140.
- the controller 140 outputs a signal for controlling the switch on / off operation of the first and second switches SW1 and SW2.
- the control unit 140 controls the second switch SW2 to maintain an off state.
- the control unit 140 controls the first switch SW1 to maintain an off state.
- the controller 140 allows the first and second insulation resistance measuring units 110 and 120 to be connected to the positive terminal and the negative terminal of the battery 10 at different points in time.
- the first and second switches (SW1, SW2) is only a name for distinguishing each other, and means the order in which the control unit 140 outputs a control signal, or of the insulation resistance measuring apparatus 100 It does not indicate the order of operation.
- the controller 140 receives signals corresponding to the first and second insulation detection voltages V 1 and V 2 received from the voltage detector 130. Then, the control unit 140 is a positive terminal side insulation resistance (R Leak (+) ) from the simultaneous circuit equation derived from the first and second insulation detection voltage (V 1 , V 2 ) and the first and second circuit. Value and the negative terminal side insulation resistance (R Leak (-) ) value are calculated.
- R Leak (+) positive terminal side insulation resistance
- the voltage of the battery 10 is denoted by V Bat , and the positive terminal side insulation resistance R Leak (+ ) and the negative terminal side insulation resistance R Leak marked on the positive and negative terminals of the battery 10, respectively.
- (-) ) Represents a virtual resistance value representing the insulation state of the battery 10. Therefore, when the insulation state of the battery 10 is destroyed, the positive terminal side insulation resistance (R Leak (+) ) value and the negative terminal side insulation resistance (R Leak (-) ) value will be measured to be low, thereby It can be interpreted that a current has occurred.
- an insulation resistance measurement device 100 is provided with a diagnostics according to the present invention will be described with reference to Figure 4 the positive terminal side of the insulation resistance (R Leak (+)) values and the negative terminal side of the insulation resistance (R Leak Let's take a closer look at the algorithm for calculating the (-) ) value.
- FIG. 3 is a circuit diagram schematically showing a first circuit according to the present embodiment.
- the current flowing through the first insulation resistance measuring unit 110 is I 1
- the current flowing through the positive electrode terminal insulation resistance R Leak (+) is I 2
- the negative electrode terminal insulation is performed.
- the current flowing through the resistor R Leak ( ⁇ ) is denoted by I 3 .
- Equation 2 Equation 2
- Equation 3 is derived.
- Equation 3 Substituting Equations 1 and 2 into Equation 3 and arranging for I 3 , Equation 3 can be expressed as Equation 4 below.
- Equation 5 the equation of the first row included in Equation 5 below is derived. Then, by arranging the equations of the first row by using I 2 and I 3 obtained through Equations 1 to 4, the equation of the last row included in Equation 5 below can be derived.
- Equation 5 The equation of the last row included in Equation 5 is one of simultaneous circuit equations for calculating the positive terminal side insulation resistance (R Leak (+) ) value and the negative terminal side insulation resistance (R Leak ( ⁇ ) ) value. It will be used with the rest of the circuit equations described below.
- FIG. 4 is a circuit diagram schematically illustrating a second circuit according to an exemplary embodiment of the present invention.
- the current flowing through the second insulation resistance measuring unit 120 is I 1
- the current flowing through the cathode terminal side insulation resistance R Leak ( ⁇ ) is I 2
- the anode terminal side insulation is performed.
- the current flowing through the resistor R Leak (+) is denoted by I 3 .
- Equation 7 a relationship as shown in Equation 7 below is established.
- Equation 8 if Kirchhoff's current law is applied based on node n connected to ground, Equation 8 below is derived.
- Equation 8 Substituting Equations 6 and 7 into Equation 8 and arranging for I 3 , Equation 8 may be expressed as Equation 9 below.
- Equation 10 when Kirchhoff's voltage law is applied based on Mesh 2 shown in FIG. 4, an equation of the first row included in Equation 10 below is derived. And, by arranging the equation of the first row by using I 2 and I 3 obtained through Equations 6 to 9, the equation of the last row included in Equation 10 below can be derived.
- the equation of the last row included in Equation 10 is the remaining circuit of the simultaneous circuit equation for calculating the positive terminal side insulation resistance (R Leak (+) ) and the negative terminal side insulation resistance (R Leak (-) ) values Equation. Accordingly, the equation of the last row included in Equation 5 and the equation of the last row included in Equation 10 are combined to form a positive terminal side insulation resistance R Leak (+ ) and a negative terminal side insulation resistance R Leak ( -) ), The following equation (11) is obtained.
- Equation 11 the battery voltage value V Bat , the resistance values of the first and second resistors R 1 and R 2 , and the voltage value V DC of the DC power supply unit are known values. Second insulation detection voltages V 1 and V 2 may be obtained through the voltage detection unit 130. Therefore, the control unit 140 substitutes the first and second insulation detection voltages V 1 and V 2 received from the voltage detector 130 into Equation 11 to insulate the positive electrode terminal side of the battery 10.
- the (R Leak (+) ) value and the negative terminal side insulation resistance (R Leak (-) ) value can be calculated quantitatively, respectively.
- the insulation resistance measuring apparatus 100 having the fault self-diagnosis function according to the present invention finishes a schematic description of an algorithm for calculating the insulation resistance value, and the insulation resistance measurement having the fault self-diagnosis function according to the present invention.
- the failure self-diagnosis algorithm of the device 100 will be described.
- FIG. 5 is a circuit diagram schematically illustrating a diagnostic circuit according to an exemplary embodiment of the present invention.
- both the first and second insulation resistance measuring units 110 and 120 are connected to the positive terminal and the negative terminal of the battery 10.
- the controller 140 outputs a signal for controlling an on operation to both the first and second switches SW1 and SW2.
- the controller 140 connects the first and second insulation resistance measurement units 110 and 120 to the positive and negative terminals of the battery 10 at different points in time.
- the first and second insulation resistance measuring units 110 and 120 are connected to the positive and negative terminal sides of the battery 10 at the same time. Accordingly, FIG. 5 illustrates a state in which the first and second insulation resistance measuring units 110 and 120 are simultaneously connected to the positive and negative terminals of the battery 10 to form a diagnostic circuit.
- the voltage detector 130 senses diagnostic voltages applied to the first and second insulation resistance measuring units 110 and 120.
- the diagnostic voltage is a voltage applied to the second resistor R 2 similarly to the insulation detection voltage described above.
- the diagnostic voltage is used for diagnosing a failure of the insulation resistance measuring apparatus 100 according to the present invention.
- a voltage applied to the second resistor R 2 included in the first insulation resistance measuring unit 110 is called a first diagnostic voltage V diag1 .
- the voltage applied to the second resistor R 2 included in the second insulation resistance measuring unit 120 is referred to as a second diagnostic voltage V diag2 .
- the voltage detector 130 outputs signals corresponding to the first and second diagnostic voltages V diag1 and V diga2 to the controller 140.
- the controller 140 determines whether the insulation resistance measuring apparatus is faulty by using the first and second diagnostic voltages V diag1 and V diag2 and a circuit equation derived from the diagnostic circuit.
- V diag1 and V diag2 a circuit equation derived from the diagnostic circuit.
- the current flowing through the first insulation resistance measuring unit 110 is represented by I 1
- the current flowing through the second insulation resistance measuring unit 110 is represented by I 2 .
- the voltage between the positive terminal side of the battery and the ground is denoted as V Top
- V Bottom the voltage between ground and the negative terminal side of the battery
- Equation 12 is summarized with respect to I 1 , it can be expressed as Equation 13 below.
- Equation 14 When I 1 summed up in Equation 13 is substituted into Equation 14, Equation 14 may be expressed as Equation 15 below.
- V diag2 the value for the second diagnostic voltage (V diag2 ) is expressed by I 2, it is expressed as Equation 16 below.
- Equation 16 is summarized with respect to I 2 , it can be expressed as Equation 17 below.
- Equation 18 can be expressed as Equation 19 below.
- Equation 20 the equation of the first row included in Equation 20 below is derived. Then, by arranging the equations of the first row using V Top and V Bottom obtained through Equations 15 and 19, the equations of the last row included in Equation 20 below can be derived.
- the equation of the last row included in Equation 20 is a circuit equation for diagnosing a failure of the insulation resistance measuring apparatus.
- the voltage value V Bat of the battery, the resistance values of the first and second resistors R 1 and R 2 , and the voltage value V DC of the DC power supply unit are known values.
- the second diagnostic voltages V diag1 and V diag2 may be obtained through the voltage detector 130.
- the voltage value V Bat of the battery may be a value measured using the voltage detector 130. Therefore, when the circuit equation is satisfied, no failure occurs in the insulation resistance measuring apparatus, and the calculated insulation resistance value can be reliably.
- the control unit 140 determines whether or not the value calculated through Equation 20 falls within a preset error range based on the voltage value V Bat of the battery. do. Measurement error that may occur in the process of detecting the first and second diagnostic voltage (V diag1 , V diag2 ), the error of the voltage value (V Bat ) of the battery, excluding the effective value below the decimal point in the calculation process of the equation It may be difficult to fully satisfy the diagnostic circuit equation due to errors that may occur while implementing the actual device, such as deleting the remaining values.
- the error range is set in advance based on the voltage value V Bat of the battery in consideration of the possibility of error, and if the value calculated through Equation 20 falls within the error range, it is determined whether the insulation resistance measuring device is faulty. You can trust it.
- the error may be determined that a failure occurs when the value calculated through Equation 20 differs by more than 1% based on the voltage value of the battery.
- the controller 140 may include a switch controller 143, an A / D converter 141, and a central processor 142 to execute the above-described diagnostic algorithm.
- FIG. 6 is a block diagram showing the configuration of the control unit 140 according to an embodiment of the present invention.
- the switch controller 143 outputs a switch control signal for controlling on and off operations of the first and second switches SW1 and SW2.
- the controller 140 receives a voltage measurement signal from the voltage detector 130.
- the A / D converter 141 converts the analog voltage signal output from the voltage detector 130 into a digital voltage signal.
- the central processor 142 receives a digital voltage signal from the A / D converter 141 and determines whether the insulation resistance measuring apparatus 100 has failed.
- the controller 140 or the central processor 142 may be a processor, an application-specific integrated circuit (ASIC), another chipset, a logic circuit, a register, known in the art to execute the various control logics described above. Communication modems, data processing devices, and the like.
- the control unit 140 or the central processor 142 may be implemented as a set of program modules.
- the program module may be stored in a memory and executed by a processor.
- the insulation resistance measuring apparatus 100 having a fault self-diagnosis function includes a battery voltage value V Bat , a voltage value V DC of a DC power supply unit, a first resistance value R 1 , and
- the memory device may further include a memory unit 150 that stores the second resistance value R 2 .
- the memory unit 150 may be inside or outside the controller 140 and may be connected to the controller 140 by various well-known means.
- the memory unit 150 is a mass storage medium such as a semiconductor device or a hard disk, which is known to record and erase data such as RAM, ROM, EEPROM, etc., and refers to a device for storing information regardless of the type of device. Does not refer to a particular memory device.
- the insulation resistance measuring apparatus 100 having a fault self-diagnosis function further includes a transmission unit 160 forming a communication interface with an external device.
- the control unit 140 may transmit information on whether the insulation resistance measuring apparatus 100 has failed to the external device through the transmission unit 160.
- the external device may be a battery analyzer or a control device of a battery-mounted system.
- the insulation resistance measuring apparatus 100 having a fault self-diagnosis function may further include a warning unit 170 for outputting a visual or audio warning signal.
- the controller 140 may output a visual or audio warning signal through the warning unit 170 when a failure occurs in the insulation resistance measuring apparatus 100.
- the warning unit 170 may warn the user so that the user may take appropriate measures.
- the warning unit 170 may include an LED, an LCD, an alarm alarm, or a combination thereof.
- the warning unit 170 may flash the LED, output a warning message on the LCD, or generate an alarm buzzer to warn the user of the failure.
- the warning unit 170 may be included in an external device connected to the transmission unit 160.
- the present invention is not limited thereto.
- the LED, LCD and alarm alarm is only one example of the warning unit 170, it will be apparent to those skilled in the art that various modified forms of visual or audio alarm device can be employed as the warning unit 170. Do.
- FIG. 7 is a flowchart illustrating a flow of a method for diagnosing a failure of an insulation resistance measuring apparatus according to an exemplary embodiment of the present invention.
- step S400 the battery voltage value V Bat , the voltage value V DC , the first resistance value R 1 , and the second resistance value R 2 are stored in the memory unit 150. do.
- the stored values are used in diagnosing the failure of the insulation resistance measuring apparatus by substituting Equation 20 together with the insulation detection voltage.
- the battery voltage value V Bat may be a value measured using a separate voltage detection circuit (not shown).
- the control unit 140 outputs a signal for controlling the on operation to both the first and second switches (SW1, SW2).
- the first and second insulation resistance measuring units 110 and 120 are connected to the positive and negative terminals of the battery 10 at the same time. This forms a diagnostic circuit.
- a signal corresponding to the voltage applied to each of the second resistors R 2 that is, the first and second diagnostic voltages V diag1 and V diag2 , is received from the voltage detector 130.
- step S430 the control unit 140 substitutes the first and second diagnostic voltages V diag1 and V diag2 received in step S420 into circuit equations derived from the diagnosis circuit, and calculates a value calculated from the equations.
- the battery voltage value V Bat is compared.
- a process of deriving an equation from the diagnostic circuit and an algorithm for diagnosing whether a failure has occurred will be described in detail, and repeated descriptions thereof will be omitted.
- operation S440 it is determined whether a failure occurs in the insulation resistance measuring apparatus 100.
- step S440 when a failure occurs in the insulation resistance measuring apparatus 100 (YES in step S440), go to step S450 to transmit information on whether a failure occurs in the external device, or go to step S460 to warn the user You can do
- the present invention it is possible to diagnose whether a failure of the device measuring the insulation resistance of the battery occurs.
- the original configuration can be used to diagnose the failure without additional configuration to the device for measuring the insulation resistance of the battery.
- the user or external device is notified of the failure so that the user can take action.
- each configuration of the insulation resistance measuring apparatus having a failure self-diagnosis function according to the present invention illustrated in FIGS. 1 to 6 is logically divided rather than physically divided. It should be understood as an element.
- each configuration corresponds to a logical component in order to realize the technical idea of the present invention, so that even if each component is integrated or separated, if the function performed by the logical configuration of the present invention can be realized, it is within the scope of the present invention. It should be construed that the components that perform the same or similar functions are to be interpreted as being within the scope of the present invention regardless of whether they correspond in terms of their names.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
Description
Claims (18)
- 배터리의 양극 단자 및 음극 단자에 각각 연결되는 제1 절연 저항 측정부 및 제2 절연 저항 측정부;상기 제1 절연 저항 측정부와 상기 제2 절연 저항 측정부를 각각 상기 양극 단자와 음극 단자에 연결하는 제1 스위치 및 제2 스위치;상기 제1 및 제2 절연 저항 측정부를 통해 제1 및 제2 진단 전압을 센싱하는 전압 검출부; 및상기 제1 및 제2 스위치에 제어 신호를 출력하여 진단 회로를 형성하고, 상기 전압 검출부로부터 진단 회로가 형성되었을 때 수신된 제1 및 제2 진단 전압과 상기 진단 회로로부터 유도되는 회로 방적식을 이용하여 절연 저항 측정 장치의 고장 여부를 판단하는 제어부;를 포함하는 것을 특징으로 하는 고장 자가 진단 기능을 구비한 절연 저항 측정 장치.
- 제1항에 있어서,상기 제2 절연 저항 측정부는 DC 전원 인가부;를 더 포함하는 것을 특징으로 하는 고장 자가 진단 기능을 구비한 절연 저항 측정 장치.
- 제3항에 있어서,상기 제어부는, 상기 수학식을 통해 산출된 값이 배터리의 전압값을 기준으로 미리 설정된 오차범위내에 속하는지 여부를 통해서 고장 여부를 판단하는 것을 특징으로 하는 고장 자가 진단 기능을 구비한 절연 저항 측정 장치.
- 제4항에 있어서,상기 제어부는, 상기 수학식을 통해 산출된 값이 배터리의 전압값을 기준으로 1% 이상 차이나는 경우 고장이 발생한 것으로 판단하는 것을 특징으로 하는 고장 자가 진단 기능을 구비한 절연 저항 측정 장치.
- 제2항에 있어서,배터리 전압값, DC 전원 인가부의 전압값, 제1 저항값 및 제2 저항값을 저장하는 메모리부;를 더 포함하는 것을 특징으로 하는 고장 자가 진단 기능을 구비한 절연 저항 측정 장치.
- 제1항에 있어서, 상기 제어부는,상기 제1 및 제2 스위치의 온 오프 동작을 제어하는 신호를 출력하는 스위치 제어기;상기 전압 검출부로부터 출력되는 아날로그 전압 신호를 디지털 전압 신호로 변환하는 A/D 변환기; 및상기 A/D 변환기로부터 디지털 전압 신호를 입력받아 상기 절연 저항 측정장치의 를 판단하는 중앙연산처리기;를 포함하는 것을 특징으로 하는 고장 자가 진단 기능을 구비한 절연 저항 측정 장치.
- 제1항에 있어서,외부 디바이스와 통신 인터페이스를 형성하는 전송부;를 더 포함하고,상기 제어부는, 상기 절연 저항 측정 장치의 고장 여부에 관한 정보를 상기 전송부를 통해서 외부 디바이스로 전송하는 것을 특징으로 하는 고장 자가 진단 기능을 구비한 절연 저항 측정 장치.
- 제8항에 있어서,상기 외부 디바이스는 배터리 분석 장치 또는 배터리가 탑재된 시스템의 제어 장치임을 특징으로 하는 고장 자가 진단 기능을 구비한 절연 저항 측정 장치.
- 제1항에 있어서,시각적 또는 청각적 경고 신호를 출력하는 경고부;를 더 포함하고,상기 제어부는, 상기 절연 저항 측정 장치에 고장이 발생한 것으로 판단한의 경우 상기 경고부를 통해 시각적 또는 청각적 경고 신호를 출력하는 것을 특징으로 하는 고장 자가 진단 기능을 구비한 절연 저항 측정 장치.
- 제1 스위치 및 제2 스위치를 이용하여 제1 및 제2 절연 저항 측정부를 배터리의 양극 또는 음극 단자에 연결하고 상기 제1 및 제2 절연 저항 측정부를 통해 검출된 제1 및 제2 진단 전압을 이용하여 절연 저항 측정 장치의 고장 여부를 자가 진단하는 방법에 있어서,(a) 상기 제1 스위치 및 제2 스위치에 제어 신호를 출력하여 진단 회로를 형성하는 단계;(b) 상기 제1 및 제2 절연 저항 측정부를 통해 검출된 제1 및 제2 진단 전압을 수신하는 단계; 및(c) 상기 제1 및 제2 진단 전압과 상기 진단 회로로부터 유도되는 회로 방정식을 이용하여 절연 저항 측정 장치의 고장 여부를 판단하는 단계;를 포함하는 것을 특징으로 하는 절연 저항 측정 장치의 고장 자가 진단 방법.
- 제11항에 있어서,상기 제2 절연 저항 측정부는 DC 전원 인가부;를 더 포함하는 것을 특징으로 하는 절연 저항 측정 장치의 고장 자가 진단 방법.
- 제13항에 있어서,상기 (c)단계는, 상기 수학식을 통해 산출된 값이 배터리의 전압값을 기준으로 미리 설정된 오차범위내에 속하는지 여부를 통해서 고장 여부를 판단하는 것을 특징으로 하는 절연 저항 측정 장치의 고장 자가 진단 방법.
- 제14항에 있어서,상기 (c)단계는, 상기 수학식을 통해 산출된 값이 배터리의 전압값을 기준으로 1% 이상 차이나는 경우 고장이 발생한 것으로 판단하는 것을 특징으로 하는 절연 저항 측정 장치의 고장 자가 진단 방법.
- 제12항에 있어서,배터리 전압값, DC 전원 인가부의 전압값, 제1 저항값 및 제2 저항값을 저장하는 단계;를 더 포함하는 것을 특징으로 하는 절연 저항 측정 장치의 고장 자가 진단 방법.
- 제11항에 있어서,상기 절연 저항 측정 장치의 고장 여부에 관한 정보를 상기 전송부를 통해서 외부 디바이스로 전송하는 단계;를 더 포함하는 것을 특징으로 하는 절연 저항 측정 장치의 고장 자가 진단 방법.
- 제11항에 있어서,상기 (c)단계에서, 절연 저항 측정 장치에 고장이 발생한 것으로 판단한 경우, 이를 사용자에게 시각적 또는 청각적 경고를 하는 단계;를 더 포함하는 것을 특징으로 하는 절연 저항 측정 장치의 고장 자가 진단 방법.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201380002318.7A CN103688183B (zh) | 2012-04-04 | 2013-04-04 | 具有故障自诊断功能的绝缘电阻测量设备和使用其的自诊断方法 |
| PL13772234T PL2720056T3 (pl) | 2012-04-04 | 2013-04-04 | Urządzenie do mierzenia rezystancji izolacji, mające funkcję samodiagnozowania usterek, oraz wykorzystujący je sposób samodiagnozowania |
| JP2014516931A JP5745694B2 (ja) | 2012-04-04 | 2013-04-04 | 自己故障診断機能を備える絶縁抵抗測定装置及びそれを用いた自己故障診断方法 |
| EP13772234.4A EP2720056B1 (en) | 2012-04-04 | 2013-04-04 | Isolation resistance measuring apparatus having fault self-diagnosing function and self-diagnosing method using the same |
| US14/090,719 US8952701B2 (en) | 2012-04-04 | 2013-11-26 | Isolation resistance measuring apparatus having fault self-diagnosing function and self-diagnosing method using the same |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20120034907 | 2012-04-04 | ||
| KR10-2012-0034907 | 2012-04-04 | ||
| KR1020130036809A KR101453786B1 (ko) | 2012-04-04 | 2013-04-04 | 고장 자가 진단 기능을 구비한 절연 저항 측정 장치 및 이를 이용한 자가 진단 방법 |
| KR10-2013-0036809 | 2013-04-04 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US14/090,719 Continuation US8952701B2 (en) | 2012-04-04 | 2013-11-26 | Isolation resistance measuring apparatus having fault self-diagnosing function and self-diagnosing method using the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2013151355A1 true WO2013151355A1 (ko) | 2013-10-10 |
Family
ID=49633645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2013/002817 Ceased WO2013151355A1 (ko) | 2012-04-04 | 2013-04-04 | 고장 자가 진단 기능을 구비한 절연 저항 측정 장치 및 이를 이용한 자가 진단 방법 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US8952701B2 (ko) |
| EP (1) | EP2720056B1 (ko) |
| JP (1) | JP5745694B2 (ko) |
| KR (1) | KR101453786B1 (ko) |
| CN (1) | CN103688183B (ko) |
| PL (1) | PL2720056T3 (ko) |
| WO (1) | WO2013151355A1 (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180222342A1 (en) * | 2017-02-08 | 2018-08-09 | Fico Triad, S.A. | Device and method for measuring isolation resistance of battery powered systems |
Families Citing this family (41)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104220887B (zh) * | 2012-03-27 | 2017-03-08 | 株式会社Lg化学 | 具有故障自诊断功能的绝缘电阻测量设备及使用该设备的故障自诊断方法 |
| US9720049B2 (en) | 2014-07-22 | 2017-08-01 | Robert Bosch Battery Systems Llc | System and method for high voltage system isolation resistance measurement |
| KR101771226B1 (ko) * | 2014-10-02 | 2017-09-05 | 주식회사 엘지화학 | 신속하게 절연 저항을 측정할 수 있는 절연 저항 측정 장치 및 방법 |
| DE102014220017A1 (de) * | 2014-10-02 | 2016-04-07 | Robert Bosch Gmbh | Batteriesystem mit einer zum Versorgen eines Hochvoltnetzes mit elektrischer Energie ausgebildeten Batterie und einer Messeinrichtung zum Messen mindestens eines Isolationswiderstandes der Batterie |
| CN104677407B (zh) * | 2015-02-14 | 2017-03-29 | 徐勤朗 | 一种应用于光电直读计度器的故障检测电路的检测方法 |
| DE102015208411A1 (de) * | 2015-05-06 | 2016-11-10 | Robert Bosch Gmbh | Elektronikmodul sowie Verfahren und Vorrichtung zum Prüfen eines Elektronikmoduls |
| KR101936220B1 (ko) * | 2015-11-16 | 2019-01-08 | 주식회사 엘지화학 | 절연 저항 측정 시스템 및 장치 |
| DE102016207197B3 (de) * | 2016-04-27 | 2017-07-13 | Bender Gmbh & Co. Kg | Verfahren und Vorrichtungen zur Funktionsprüfung eines Isolationsüberwachungsgerätes |
| US10161981B2 (en) * | 2016-09-14 | 2018-12-25 | Johnson Controls Technology Company | Isolation barrier fault detection circuit |
| KR101991910B1 (ko) * | 2016-11-16 | 2019-06-21 | 주식회사 엘지화학 | 배터리의 절연 저항 산출 장치 및 방법 |
| CN116487794A (zh) | 2017-01-09 | 2023-07-25 | 米沃奇电动工具公司 | 用于向电气设备提供输出电力的设备 |
| KR102069942B1 (ko) * | 2017-01-24 | 2020-01-23 | 주식회사 엘지화학 | 음극 릴레이를 이용한 배터리팩의 절연저항 측정 장치 및 측정 방법 |
| CN106680579A (zh) * | 2017-02-22 | 2017-05-17 | 浙江零跑科技有限公司 | 一种集成多功能检测的电路模块及采样方法 |
| DE102017108207B4 (de) * | 2017-04-18 | 2026-04-02 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Vorrichtung zur Stromversorgung für ein Steuergerät und Verfahren zur Überwachung einer Stromversorgung |
| CN107728066A (zh) | 2017-08-29 | 2018-02-23 | 宁德时代新能源科技股份有限公司 | 绝缘检测电路及方法、电池管理系统 |
| KR102256099B1 (ko) * | 2017-11-29 | 2021-05-25 | 주식회사 엘지에너지솔루션 | 배터리 팩 |
| KR102270232B1 (ko) * | 2017-12-11 | 2021-06-25 | 주식회사 엘지에너지솔루션 | 배터리 팩의 양극 컨택터 진단 장치 및 방법 |
| KR102270233B1 (ko) * | 2017-12-12 | 2021-06-25 | 주식회사 엘지에너지솔루션 | 배터리 팩의 음극 컨택터 진단 장치 및 방법 |
| KR102259382B1 (ko) | 2017-12-15 | 2021-06-01 | 주식회사 엘지에너지솔루션 | 배터리 누전을 검출하기 위한 방법 및 장치 |
| CN108333548A (zh) * | 2017-12-30 | 2018-07-27 | 宁德时代新能源科技股份有限公司 | 绝缘电阻测量设备及故障自诊断方法 |
| CN110726907A (zh) | 2018-07-17 | 2020-01-24 | 宁德时代新能源科技股份有限公司 | 储能系统的绝缘检测装置和方法 |
| KR102256096B1 (ko) * | 2018-08-27 | 2021-05-27 | 주식회사 엘지에너지솔루션 | 배터리팩과 접지 간의 절연 상태를 진단하기 위한 장치 및 방법과, 상기 장치를 포함하는 배터리팩 |
| CN109061307A (zh) * | 2018-09-06 | 2018-12-21 | 北京长城华冠汽车科技股份有限公司 | 绝缘电阻检测电路的故障诊断方法 |
| CN110967606A (zh) | 2019-01-15 | 2020-04-07 | 宁德时代新能源科技股份有限公司 | 绝缘检测电路及检测方法、电池管理系统 |
| CN109765495B (zh) | 2019-01-15 | 2020-11-10 | 宁德时代新能源科技股份有限公司 | 绝缘检测电路及检测方法、电池管理系统 |
| KR102791007B1 (ko) * | 2019-09-06 | 2025-04-02 | 주식회사 엘지에너지솔루션 | 절연 저항 측정 회로 진단 장치 및 방법 |
| CN112526424B (zh) | 2019-09-18 | 2021-09-28 | 宁德时代新能源科技股份有限公司 | 一种绝缘检测电路的检测方法及电池管理系统 |
| WO2021096312A1 (ko) * | 2019-11-13 | 2021-05-20 | 주식회사 엘지화학 | 멀티 배터리 팩에 포함된 스위치부의 고장 진단 장치 및 방법 |
| US11283391B2 (en) * | 2019-11-27 | 2022-03-22 | Steering Solutions Ip Holding Corporation | Detection of current measurement gain errors in synchronous motor drives |
| CN111697689B (zh) * | 2020-05-13 | 2021-09-24 | 北京四方继保工程技术有限公司 | 一种供电设备隐性故障监测方法和系统 |
| EP3929597B1 (en) * | 2020-06-23 | 2024-08-21 | Volvo Truck Corporation | Electric insulation monitoring arrangement |
| CN114002502B (zh) * | 2020-07-27 | 2023-01-13 | 宁德时代新能源科技股份有限公司 | 一种绝缘电阻检测电路及方法 |
| CN112327681A (zh) * | 2020-10-14 | 2021-02-05 | 北京三快在线科技有限公司 | 电源控制设备、故障定位方法、设备、介质及无人设备 |
| KR102463637B1 (ko) * | 2020-11-03 | 2022-11-09 | 한국전기안전공사 | 직류 설비 활선 절연저항 측정 장치 및 방법 |
| HUE063379T2 (hu) * | 2021-02-12 | 2024-01-28 | Samsung Sdi Co Ltd | Szigetelési mérések monitorozása ASIL alkalmazásokhoz |
| US11714111B2 (en) | 2021-02-12 | 2023-08-01 | Samsung Sdi Co., Ltd. | Isolation measurement monitoring for ASIL applications |
| JP7846087B2 (ja) * | 2021-03-31 | 2026-04-14 | ヌヴォトンテクノロジージャパン株式会社 | 漏電検出回路およびバッテリ状態検出回路 |
| KR102920220B1 (ko) * | 2021-11-12 | 2026-01-30 | 주식회사 엘지에너지솔루션 | 절연 저항 측정 장치 |
| JP7816975B2 (ja) * | 2021-12-23 | 2026-02-18 | 株式会社デンソーテン | 絶縁抵抗検出装置および故障検出方法 |
| CN116609584A (zh) * | 2022-02-08 | 2023-08-18 | 李尔公司 | 用于测量电池组的隔离电阻的方法和系统 |
| KR102750696B1 (ko) * | 2022-04-25 | 2025-01-09 | 충북대학교 산학협력단 | 전력선과의 시스템 연결 확인 기능을 가지는 절연 감시 장치 및 이의 동작 방법 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005114497A (ja) * | 2003-10-07 | 2005-04-28 | Yazaki Corp | 状態検出方法及び絶縁抵抗低下検出器 |
| JP2005127821A (ja) * | 2003-10-23 | 2005-05-19 | Yazaki Corp | 絶縁抵抗低下検出器およびその自己診断方法 |
| US20080197855A1 (en) * | 2005-08-29 | 2008-08-21 | Toyota Jidosha Kabushiki Kaisha | Insulation Resistance Drop Detector and Failure Self-Diagnosis Method for Insulation Resistance Drop Detector |
| US20090134881A1 (en) * | 2006-08-04 | 2009-05-28 | Toyota Jidosha Kabushiki Kaisha | Insulation resistance detection system, insulation resistance detection apparatus and insulation resistance detection method |
| WO2012036498A2 (en) * | 2010-09-17 | 2012-03-22 | Sk Innovation Co.,Ltd. | Insulation resistance measurement circuit having self-test function without generating leakage current |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3957598B2 (ja) * | 2002-09-10 | 2007-08-15 | 松下電器産業株式会社 | 絶縁抵抗検出方法および装置 |
| DE10300539B4 (de) * | 2003-01-09 | 2007-05-24 | Daimlerchrysler Ag | Schaltung und Verfahren zur Erfassung von Isolationsfehlern |
| JP4682037B2 (ja) * | 2005-12-22 | 2011-05-11 | 矢崎総業株式会社 | 絶縁検出装置 |
| KR101291724B1 (ko) * | 2007-09-04 | 2013-07-31 | 주식회사 엘지화학 | 배터리의 누설전류 감지 장치 및 방법 |
| GB0816452D0 (en) * | 2008-09-09 | 2008-10-15 | Ricardo Uk Ltd | Isolation detection |
| JP5234282B2 (ja) * | 2009-02-09 | 2013-07-10 | 三菱自動車工業株式会社 | バッテリパックの検査装置 |
| KR20100104139A (ko) * | 2009-03-16 | 2010-09-29 | 주식회사 크라또 | 절연 저항 측정 시스템 및 절연 저항 측정 장치 |
| EP2256506B1 (de) * | 2009-05-27 | 2019-07-03 | Bender GmbH & Co. KG | Verfahren und Vorrichtung zur Isolationsüberwachung von ungeerdeten Gleich- und Wechselspannungsnetzen |
| JP5757877B2 (ja) * | 2009-12-15 | 2015-08-05 | 株式会社ピューズ | 絶縁劣化検出装置 |
-
2013
- 2013-04-04 KR KR1020130036809A patent/KR101453786B1/ko active Active
- 2013-04-04 PL PL13772234T patent/PL2720056T3/pl unknown
- 2013-04-04 WO PCT/KR2013/002817 patent/WO2013151355A1/ko not_active Ceased
- 2013-04-04 CN CN201380002318.7A patent/CN103688183B/zh active Active
- 2013-04-04 JP JP2014516931A patent/JP5745694B2/ja active Active
- 2013-04-04 EP EP13772234.4A patent/EP2720056B1/en active Active
- 2013-11-26 US US14/090,719 patent/US8952701B2/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005114497A (ja) * | 2003-10-07 | 2005-04-28 | Yazaki Corp | 状態検出方法及び絶縁抵抗低下検出器 |
| JP2005127821A (ja) * | 2003-10-23 | 2005-05-19 | Yazaki Corp | 絶縁抵抗低下検出器およびその自己診断方法 |
| US20080197855A1 (en) * | 2005-08-29 | 2008-08-21 | Toyota Jidosha Kabushiki Kaisha | Insulation Resistance Drop Detector and Failure Self-Diagnosis Method for Insulation Resistance Drop Detector |
| US20090134881A1 (en) * | 2006-08-04 | 2009-05-28 | Toyota Jidosha Kabushiki Kaisha | Insulation resistance detection system, insulation resistance detection apparatus and insulation resistance detection method |
| WO2012036498A2 (en) * | 2010-09-17 | 2012-03-22 | Sk Innovation Co.,Ltd. | Insulation resistance measurement circuit having self-test function without generating leakage current |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP2720056A4 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180222342A1 (en) * | 2017-02-08 | 2018-08-09 | Fico Triad, S.A. | Device and method for measuring isolation resistance of battery powered systems |
| US10632855B2 (en) * | 2017-02-08 | 2020-04-28 | Fico Triad, S.A. | Device and method for measuring isolation resistance of battery powered systems |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2720056A1 (en) | 2014-04-16 |
| KR101453786B1 (ko) | 2014-11-03 |
| EP2720056B1 (en) | 2021-03-17 |
| US20140084933A1 (en) | 2014-03-27 |
| CN103688183B (zh) | 2016-04-20 |
| JP5745694B2 (ja) | 2015-07-08 |
| US8952701B2 (en) | 2015-02-10 |
| CN103688183A (zh) | 2014-03-26 |
| EP2720056A4 (en) | 2015-10-21 |
| KR20130112802A (ko) | 2013-10-14 |
| JP2014522966A (ja) | 2014-09-08 |
| PL2720056T3 (pl) | 2021-07-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2013151355A1 (ko) | 고장 자가 진단 기능을 구비한 절연 저항 측정 장치 및 이를 이용한 자가 진단 방법 | |
| WO2013147494A1 (ko) | 배터리의 절연 저항 측정 장치 및 방법 | |
| WO2013147493A1 (ko) | 고장 자가 진단 기능을 구비한 절연 저항 측정 장치 및 이를 이용한 고장 자가 진단 방법 | |
| WO2021049753A1 (ko) | 배터리 진단 장치 및 방법 | |
| WO2022177274A1 (ko) | 배터리 상태 진단 장치 및 방법 | |
| WO2019098722A1 (ko) | 배터리 저항 추정 장치 및 방법 | |
| WO2022080709A1 (ko) | 릴레이 진단 장치, 릴레이 진단 방법, 배터리 시스템, 및 전기 차량 | |
| WO2021085893A1 (ko) | 누전 검출 장치, 누전 검출 방법 및 전기 차량 | |
| WO2023287180A1 (ko) | 배터리 진단 장치, 배터리 팩, 전기 차량 및 배터리 진단 방법 | |
| WO2014129757A1 (ko) | 셀 밸런싱 회로의 고장 진단 장치 및 방법 | |
| WO2022145822A1 (ko) | 배터리 관리 장치 및 방법 | |
| WO2021096312A1 (ko) | 멀티 배터리 팩에 포함된 스위치부의 고장 진단 장치 및 방법 | |
| WO2023038398A1 (ko) | 배터리 진단 장치, 배터리 관리 시스템, 배터리 팩, 전기 차량 및 배터리 진단 방법 | |
| WO2019107976A1 (ko) | 배터리 팩 | |
| WO2023249285A1 (ko) | 배터리 관리 장치 및 방법 | |
| WO2022154545A1 (ko) | 배터리 관리 장치 및 방법 | |
| WO2021091086A1 (ko) | 배터리 진단 장치, 배터리 진단 방법 및 에너지 저장 시스템 | |
| WO2022030971A1 (ko) | 배터리 진단 디바이스, 배터리 팩, 배터리 시스템 및 배터리 진단 방법 | |
| WO2023282713A1 (ko) | 배터리 관리 시스템, 배터리 팩, 전기 차량 및 배터리 관리 방법 | |
| WO2019107982A1 (ko) | 배터리 팩 | |
| WO2018074744A1 (ko) | 전압 분배를 이용한 스위치 진단 장치 및 방법 | |
| WO2023033480A1 (ko) | 배터리 진단 시스템 및 방법 | |
| WO2022250390A1 (ko) | 배터리 모니터링 장치 및 방법 | |
| WO2019107978A1 (ko) | 배터리 팩 | |
| WO2020045968A1 (ko) | 배터리 팩과 접지 간의 절연 상태를 진단하기 위한 장치 및 방법과, 상기 장치를 포함하는 배터리 팩 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WWE | Wipo information: entry into national phase |
Ref document number: 201380002318.7 Country of ref document: CN |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 13772234 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 2014516931 Country of ref document: JP Kind code of ref document: A |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2013772234 Country of ref document: EP |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |

















