WO2010109784A1 - 電池異常検出回路、及び電源装置 - Google Patents
電池異常検出回路、及び電源装置 Download PDFInfo
- Publication number
- WO2010109784A1 WO2010109784A1 PCT/JP2010/001502 JP2010001502W WO2010109784A1 WO 2010109784 A1 WO2010109784 A1 WO 2010109784A1 JP 2010001502 W JP2010001502 W JP 2010001502W WO 2010109784 A1 WO2010109784 A1 WO 2010109784A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- soc
- value
- internal resistance
- secondary battery
- change
- Prior art date
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]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. 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
-
- 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]
-
- 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
- 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
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
-
- 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
- G01R31/3648—Constructional arrangements comprising digital calculation means, e.g. for performing an algorithm
-
- 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]
- G01R31/374—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with means for correcting the measurement for temperature or ageing
-
- 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
-
- 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
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or 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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/545—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/547—Voltage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/549—Current
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2250/00—Driver interactions
- B60L2250/16—Driver interactions by display
-
- 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
- B60L2260/40—Control modes
- B60L2260/44—Control modes by parameter estimation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Definitions
- the present invention relates to a mobile field such as a mobile phone and a personal computer, a power tool field such as an electric tool and a vacuum cleaner, an electric vehicle, an electric industrial vehicle, an electric motorcycle, an electric assist bicycle, an electric wheelchair and an electric robot,
- the present invention relates to a battery abnormality detection circuit for a secondary battery used in various applications such as a power supply in the system power supply field such as leveling, peak shift, and backup, and a power supply device using the same.
- a variety of devices have been proposed for detecting abnormalities in secondary batteries based on changes in battery characteristics during repeated charge / discharge and long-term storage use.
- a device that detects a leakage abnormality of the secondary battery by comparing the amount of change in the internal resistance of the secondary battery caused by charging for a predetermined time with a reference value has been proposed (for example, , See Patent Document 1).
- a battery in which a leakage abnormality has occurred detects an abnormality by utilizing a characteristic that the amount of change in internal resistance during charging is larger than that of a normal secondary battery. ing.
- An object of the present invention is to provide a battery abnormality detection circuit capable of improving the accuracy of abnormality detection of a secondary battery, and a power supply device using the same.
- a battery abnormality detection circuit includes: an SOC detection unit that detects an SOC of a secondary battery; an internal resistance detection unit that detects an internal resistance value of the secondary battery; and a predetermined first timing, A first state acquisition unit that acquires the SOC detected by the SOC detection unit as a first SOC and the internal resistance value detected by the internal resistance detection unit as a first resistance value, and a preset time set from the first timing At the second timing that has passed, the second state acquisition unit that acquires the SOC detected by the SOC detection unit as the second SOC and the internal resistance value detected by the internal resistance detection unit as the second resistance value; Based on the storage unit that stores in advance the relationship information indicating the correspondence between the SOC and the internal resistance value of the secondary battery, and the relationship information stored in the storage unit, A reference change value setting unit for setting a reference change value indicating a magnitude of a change from the internal resistance value corresponding to the first SOC to the internal resistance value corresponding to the second SOC; and from the first resistance value to
- a power supply device includes the above-described battery abnormality detection circuit and the secondary battery.
- FIG. 3 It is a block diagram which shows an example of the battery abnormality detection circuit which concerns on one Embodiment of this invention, and the power supply device using this battery abnormality detection circuit. It is a block diagram which shows an example of a structure of the control part shown in FIG. It is explanatory drawing for demonstrating an example of the detection method of the internal resistance value by the internal resistance detection part shown in FIG. 3 is a flowchart showing an example of the operation of the battery abnormality detection circuit shown in FIG. 3 is a flowchart showing an example of the operation of the battery abnormality detection circuit shown in FIG. It is a graph which shows an example of the correspondence of SOC of a lithium secondary battery, and internal resistance value. 6A is a graph during discharging, and FIG. 6B is a graph during charging.
- FIG. 1 is a block diagram showing an example of a battery abnormality detection circuit according to an embodiment of the present invention and a power supply device using the battery abnormality detection circuit.
- a power supply apparatus 100 shown in FIG. 1 includes a battery abnormality detection circuit 1 and a lithium secondary battery 12.
- the power supply device 100 may be, for example, a battery pack, a backup power supply device, may be configured as part of a battery-equipped device, or may be another power supply device.
- various secondary batteries such as a nickel hydride secondary battery and a lead storage battery can be used as the lithium secondary battery 12.
- the battery abnormality detection circuit 1 is connected with a lithium secondary battery 12, a host device 10, and a charge / discharge unit 11.
- the host device 10 is a main body of a battery-equipped device that operates by power supplied from the lithium secondary battery 12, such as a portable personal computer or a mobile phone.
- the charging / discharging unit 11 is a charging / discharging circuit that supplies current to the lithium secondary battery 12 to charge it or receives power from the lithium secondary battery 12 and supplies it to the host device 10.
- the battery abnormality detection circuit 1, the lithium secondary battery 12, the host device 10, and the charging / discharging unit 11 are integrally configured to constitute a battery-equipped device.
- the battery abnormality detection circuit 1 may be configured as a part of the host device 10, for example, may be configured as a part of a battery pack including the lithium secondary battery 12.
- the battery abnormality detection circuit 1 includes a current detection unit 2 that detects a current value Id of a charge / discharge current input / output to / from the lithium secondary battery 12 by the charge / discharge unit 11, and a voltage value Vt of the terminal voltage of the lithium secondary battery 12.
- a voltage detection unit 3 for detecting the temperature a temperature detection unit 4 for detecting the temperature T of the lithium secondary battery 12, a timer unit 5 for performing time counting, a memory unit 6 (storage unit), a control unit 7, and a display for displaying abnormality information Unit 8 and a communication unit 9 that transmits abnormality information to the host device 10.
- the current detection unit 2 is configured using a current sensor such as a shunt resistor or a current transformer.
- the current detection unit 2 is configured to indicate a current value in the direction in which the lithium secondary battery 12 is charged as plus and a current value in the direction in which the lithium secondary battery 12 is discharged as minus.
- the voltage detection unit 3 is configured using, for example, an analog-digital converter.
- the temperature detection unit 4 is configured using a temperature sensor such as a thermocouple or a thermistor, for example.
- the timer unit 5 may be configured by using a timer circuit, for example, or may be realized by a software sequence.
- the memory unit 6 is a storage unit including, for example, a nonvolatile ROM (Read Only Memory), a RAM (Random Access Memory) that stores abnormality information, and the like.
- a relationship information table indicating a correspondence relationship between the SOC (State Of Charge) of the lithium secondary battery 12 and the internal resistance value, an SOC conversion table for converting the terminal voltage of the lithium secondary battery 12 into the SOC, and the like Is stored in advance as a LUT (Look Up Table).
- the memory unit 6 may be built in the control unit 7, for example.
- FIG. 6 is a graph showing an example of a correspondence relationship between the SOC of the lithium secondary battery 12 and the internal resistance value.
- 6A shows a graph during discharging
- FIG. 6B shows a graph during charging.
- 6A and 6B graphs G1 and G3 showing characteristics when the lithium secondary battery 12 is normal and graphs G2 and G4 showing characteristics when the lithium secondary battery 12 is abnormal are shown. Show.
- the change in the internal resistance value with respect to the change in SOC is larger during discharging than during charging.
- the display unit 8 for example, an LED (Light Emitting Diode), a liquid crystal display, or the like is used.
- the current detection unit 2, the voltage detection unit 3, the temperature detection unit 4, the timer unit 5, and the memory unit 6 are each connected to the control unit 7, and information obtained from each unit is transmitted to the control unit 7. Based on the information transmitted from each unit, the control unit 7 generates abnormality information indicating an abnormal state of the lithium secondary battery 12 and stores the abnormality information in the memory unit 6. This abnormality information is transmitted and displayed on the display unit 8 or is transmitted to the host device 10 via the communication unit 9.
- FIG. 2 is a block diagram showing an example of the configuration of the control unit 7 shown in FIG.
- the control unit 7 includes, for example, a CPU (Central Processing Unit) that executes predetermined arithmetic processing, a storage unit such as a ROM in which a predetermined control program is stored and a RAM that temporarily stores data, peripheral circuits thereof, and the like And is configured. And the control part 7 performs the control program memorize
- ROM Central Processing Unit
- the SOC detection unit 71 detects the SOC (State Of Charge) of the lithium secondary battery 12. Specifically, in the lithium ion secondary battery, there is a correlation between the terminal voltage value Vt and the SOC. Therefore, a lookup table indicating the correspondence between the terminal voltage value Vt of the lithium secondary battery 12 and the SOC is stored in advance in the memory unit 6 as an SOC conversion table.
- the SOC detection unit 71 converts the terminal voltage value Vt detected by the voltage detection unit 3 into SOC with reference to the SOC conversion table stored in the memory unit 6, so that the SOC of the lithium secondary battery 12 can be obtained. Is detected.
- a correction value (addition value) for correcting the SOC corresponding to the terminal voltage is set such that the correction amount (addition amount) increases as the temperature increases so as to compensate for the change in the terminal voltage due to temperature. Is stored in the memory unit 6 in advance as a temperature correction table.
- the SOC detection unit 71 refers to the temperature correction table and acquires a correction value associated with the temperature T detected by the temperature detection unit 4. Further, the SOC detection unit 71 corrects the SOC by adding the correction value obtained using the temperature correction table to the SOC obtained using the SOC conversion table as described above, and calculates the corrected SOC.
- the data is output to the first state acquisition unit 73 and the second state acquisition unit 74.
- the SOC detection unit 71 does not necessarily need to correct the SOC according to the temperature, and outputs the SOC obtained using the SOC conversion table to the first state acquisition unit 73 and the second state acquisition unit 74. May be.
- the SOC detection unit 71 calculates the stored charge amount of the lithium secondary battery 12 by integrating the charge / discharge current value Id detected by the current detection unit 2, and stores the charge with respect to the full charge capacity of the lithium secondary battery 12.
- the percentage of charge may be calculated as SOC, and various other methods can be used to detect SOC.
- the internal resistance detector 72 detects the internal resistance value R of the lithium secondary battery 12.
- FIG. 3 is an explanatory diagram for explaining an example of a method of detecting the internal resistance value R by the internal resistance detector 72 shown in FIG.
- the internal resistance detection unit 72 acquires a plurality of sets of the terminal voltage value Vt and the charge / discharge current value Id and generates a regression line.
- the data P1 with the charge / discharge current value Id of I1 and the terminal voltage value Vt of V1 the data P2 of charge / discharge current value Id with the terminal voltage value Vt of V2, and the charge / discharge current value Id of I3,
- data P3 having a terminal voltage value Vt of V3 is acquired and a regression line L is generated from the data P1, P2, P3.
- the regression line L thus obtained is expressed by the following formula (1), and a coefficient R indicating the slope is obtained as the internal resistance value R of the lithium secondary battery 12.
- Vt R ⁇ Id + V 0 (1)
- the regression line L it is necessary to obtain a set of a plurality of terminal voltage values Vt and charge / discharge current values Id having different values.
- the charge / discharge current changes frequently according to the acceleration / deceleration of the vehicle, the road surface condition, and the like.
- the charge / discharge current changes frequently according to the change in wind speed. Therefore, for example, in a period of about 1 minute, it is possible to obtain a set of a plurality of terminal voltage values Vt and charge / discharge current values Id necessary for obtaining the regression line L and having different values.
- the internal resistance detection unit 72 stores, for example, an internal resistance table indicating the relationship between the temperature of the lithium secondary battery 12 and the internal resistance value in a ROM or the like in advance, and the temperature T detected by the temperature detection unit 4. May be converted to the internal resistance value R of the lithium secondary battery 12 by using the internal resistance table to estimate the internal resistance value R.
- the first state acquisition unit 73 sets the SOC of the lithium secondary battery 12 obtained by the SOC detection unit 71 to SOC 1 (first SOC) at a predetermined first timing T1 during the period when the lithium secondary battery 12 is discharged. ), and acquires the internal resistance value R detected by the internal resistance detector 72 as a first resistance value R 1. Then, the first state acquisition unit 73 causes the timer unit 5 to start measuring elapsed time.
- the second state acquisition unit 74 has a time measured by the timer unit 5 equal to or longer than a preset set time Ts, for example, 1 hour, that is, a preset set time Ts has elapsed from the first timing T1, and the lithium secondary At the second timing T2 when the battery 12 is discharged, the SOC of the lithium secondary battery 12 obtained by the SOC detection unit 71 is represented by SOC 2 (second SOC), and the internal resistance value R detected by the internal resistance detection unit 72 is represented by obtaining a second resistance value R 2.
- a preset set time Ts for example, 1 hour
- the first state acquisition unit 73 and the second state acquisition unit 74 are charging the lithium secondary battery 12 when the charge / discharge current value Id detected by the current detection unit 2 is a positive value, for example. If it is negative, the lithium secondary battery 12 is determined to be discharging.
- the set time Ts may be set appropriately as long as the SOC of the lithium secondary battery 12 is expected to change in the actual use state, and strict time accuracy is not required.
- first timing T1 and the second timing T2 include the detection time of the internal resistance value R by the internal resistance detection unit 72 and the processing time of the first state acquisition unit 73 and the second state acquisition unit 74.
- the timing at which the set time Ts is started may be at the beginning of the first timing T1 or after the end of the first timing T1. It is only necessary that the time interval from T1 to the second timing T2 can be roughly defined.
- the 1st state acquisition part 73 and the 2nd state acquisition part 74 do not necessarily have the lithium secondary battery 12 in a discharge state or a charge state based on the charging / discharging current value Id detected by the current detection part 2. It is not restricted to the example which detects.
- the first state acquisition unit 73 and the second state acquisition unit 74 send information indicating whether the lithium secondary battery 12 is being discharged or being charged from the charge / discharge unit 11 to the host device 10 and the communication unit 9. It can be detected by various means, such as receiving via a network.
- the reference change value setting unit 75 refers to the relation information table stored in the memory unit 6, and the internal resistance reference value Rx 1 associated with the SOC 1 obtained by the first state acquisition unit 73; The internal resistance reference value Rx 2 associated with the SOC 2 obtained by the second state obtaining unit 74 is obtained.
- the reference change value setting unit 75 uses, for example, the following formulas (2) and (3) when SOC 1 ⁇ SOC 2 , and the following formulas (4) and (5) when SOC 1 ⁇ SOC 2. used to calculate the reference change the upper limit value Xu and reference variation lower limit value Xd is a reference change value as an index indicating the magnitude of the change from the internal resistance standard value Rx 1 to the internal resistance standard value Rx 2, set .
- Cx is a value representing an error in the reference change value caused by characteristic variation of the lithium secondary battery 12, measurement error, or the like.
- the determination unit 76 is a change that is an index indicating the magnitude of the change from the first resistance value R 1 acquired by the first state acquisition unit 73 to the second resistance value R 2 acquired by the second state acquisition unit 74.
- the value X is calculated using, for example, the following formula (6) when SOC 1 ⁇ SOC 2 and the following formula (7) when SOC 1 ⁇ SOC 2 .
- the determination unit 76 When it is determined that an abnormality has occurred in the secondary battery 12, and the change value X is within the range of the reference change upper limit value Xu to the reference change lower limit value Xd, it is determined that no abnormality has occurred, and the determination result is abnormal. Information is stored in the memory unit 6, displayed on the display unit 8, or transmitted to the host device 10 by the communication unit 9.
- the relationship between the SOC and the internal resistance value at normal time (graphs G1 and G3), and the relationship between the SOC and the internal resistance value at the time of abnormality (graphs G2 and G4). May be in a parallel-shifted relationship, or there may be a region.
- the change value X is evaluated as a difference (R 2 ⁇ R 1 or R 1 ⁇ R 2 ) before and after the change, a difference in the change value X between normal time and abnormal time is unlikely to occur. It may be difficult to detect the occurrence of an abnormality.
- FIG. 4 and 5 are flowcharts showing an example of the operation of the battery abnormality detection circuit 1 shown in FIG.
- the current detection unit 2 detects the charge / discharge current value Id of the current flowing through the lithium secondary battery 12 (step S1).
- step S2 the charge / discharge current value Id is compared with zero by the first state acquisition unit 73 (step S2). If the charge / discharge current value Id is equal to or greater than zero (NO in step S2), the lithium secondary battery 12 is While it is determined that the battery is not in the discharged state and the process proceeds to step S1 again, if the charge / discharge current value Id is less than zero (negative value) (YES in step S2), the lithium secondary battery 12 is determined to be in the discharged state. Then, the process proceeds to step S3.
- the execution timing of steps S3 and S4 corresponds to the timing T1.
- the SOC detection unit 71 calculates the SOC of the lithium secondary battery 12 at the timing T1. Then, the SOC obtained in this way is obtained as SOC 1 by the first state obtaining unit 73 (step S3).
- the internal resistance detection unit 72 detects the internal resistance value R of the lithium secondary battery 12 at the timing T1. Then, the internal resistance value R thus obtained is acquired as the first resistance value R 1 by the first state acquisition unit 73 (step S4).
- step S5 the timer unit 5 starts measuring the elapsed time Tm (step S5).
- step S6 the second state acquisition unit 74 compares the elapsed time Tm measured by the timer unit 5 with the set time Ts (step S6), and the elapsed time Tm elapses after the set time Ts from the timing T1. If it is equal to or greater than Ts (YES in step S6), the process proceeds to step S7.
- step S7 the charge / discharge current value Id is compared with zero by the second state acquisition unit 74. If the charge / discharge current value Id is equal to or greater than zero (NO in step S7), the lithium secondary battery 12 is in the discharge state. If the charge / discharge current value Id is less than zero (negative value) (YES in step S7), the lithium secondary battery 12 is determined to be in a discharged state, and the process proceeds to step S8. Transition.
- the execution timing of steps S8 and S9 corresponds to the timing T2.
- step S8 the SOC detection unit 71 calculates the SOC of the lithium secondary battery 12 at the timing T2. Then, the SOC obtained in this way is obtained as SOC 2 by the second state obtaining unit 74 (step S8).
- the SOC detector 71 may constantly calculate and update the SOC of the lithium secondary battery 12 by executing integration of the charge / discharge current value Id in parallel with steps S1 to S16.
- steps S3 and S8 the first state acquisition unit 73 and the second state acquisition unit 74 acquire the latest SOC calculated by the SOC detection unit 71 as SOC 1 and SOC 2 at timings T1 and T2, respectively. It may be.
- the internal resistance detection unit 72 detects the internal resistance value R of the lithium secondary battery 12 at the timing T2. Then, the second state acquisition section 74, thus to the internal resistance value R obtained is acquired as a second resistance value R 2 (step S9).
- the equations (2) to (5) are expressed as follows. Using this, the reference change upper limit value Xu and the reference change lower limit value Xd are set (step S11).
- step S12 the determination unit 76, based on the first resistance value R 1 and the second resistance value R 2, the formula (6), the change value X is calculated by using (7) (step S12).
- step S13 whether or not the change value X is within the range of the reference change upper limit value Xu or more and the reference change lower limit value Xd or less is confirmed by the determination unit 76 (step S13).
- the reference change upper limit value Xu and the reference change lower limit value Xd are determined based on the timing T1 from the SOC 1 that is the SOC of the lithium secondary battery 12 at the timing T1 and the SOC 2 that is the SOC of the lithium secondary battery 12 at the timing T2. Is a value (index) in which a change in the internal resistance value R of the lithium secondary battery 12 between T and T2 is predicted.
- the change value X is an internal resistance of the lithium secondary battery 12 in the first resistance value R 1 and the timing T2 is the internal resistance of the lithium secondary battery 12 at the timing T1 It is a value (index) that represents the change between.
- the change value X is considered to be within the range of the reference change upper limit value Xu and the reference change lower limit value Xd.
- the change value X is out of the range between the reference change upper limit value Xu and the reference change lower limit value Xd, it is considered that an abnormality has occurred in the lithium secondary battery 12.
- the determination unit 76 determines that the lithium secondary battery 12 is normal if the change value X is in the range of the reference change upper limit value Xu or more and the reference change lower limit value Xd or less (YES in step S13). (Step S14) If the change value X is outside the range between the reference change upper limit value Xu and the reference change lower limit value Xd (NO in step S13), it is determined that an abnormality has occurred in the lithium secondary battery 12. (Step S15).
- the determination part 76 memorize
- the timing T1 and the timing T2 are calculated from the SOC 1 that is the SOC of the lithium secondary battery 12 at the timing T1 and the SOC 2 that is the SOC of the lithium secondary battery 12 at the timing T2.
- the range serving as the criterion for abnormality determination is set as the reference change upper limit value Xu reflecting the SOC and the reference change lower limit value Xd. Therefore, as in the background art, the accuracy of secondary battery abnormality detection is improved compared to the case where abnormality is detected by comparing the amount of change in the internal resistance of the secondary battery caused by charging for a predetermined time with a reference value. can do.
- the first state acquisition unit 73 and the second state acquisition unit 74 necessarily in time during the discharge, SOC 1, limited to the example first resistance value R 1, SOC 2, and the second resistance value R 2 to obtain Alternatively, steps S2 and S7 may not be executed.
- the first state acquisition unit 73 and the second state acquisition unit 74 execute steps S2 and S7, and at the timing during discharging, the SOC 1 , the first resistance value R 1 , the SOC 2 , and the second resistance value R by acquiring the 2, SOC 1, first resistance value R 1, SOC 2, and results a large value is obtained as a change value X compared with a case where the second to obtain the resistance value R 2 during the charging, secondary
- the accuracy of battery abnormality detection can be improved.
- the battery abnormality detection circuit includes an SOC detection unit that detects the SOC of the secondary battery, an internal resistance detection unit that detects the internal resistance value of the secondary battery, and a predetermined first timing.
- a first state acquisition unit that acquires the SOC detected by the SOC detection unit as a first SOC and an internal resistance value detected by the internal resistance detection unit as a first resistance value, and is preset from the first timing
- a second state acquisition unit that acquires the SOC detected by the SOC detection unit as a second SOC and the internal resistance value detected by the internal resistance detection unit as a second resistance value at a second timing after a set time has elapsed;
- a reference change value setting unit for setting a reference change value indicating a magnitude of a change from the internal resistance value corresponding to the first SOC to the internal resistance value corresponding to the second SOC;
- a power supply device includes the above-described battery abnormality detection circuit and the secondary battery.
- the SOC of the secondary battery at a predetermined first timing is acquired as the first SOC and the internal resistance value is acquired as the first resistance value by the first state acquisition unit, and is set in advance from the first timing.
- the SOC of the secondary battery at the second timing after the elapse of time is acquired as the second SOC and the internal resistance value as the second resistance value.
- relationship information indicating a correspondence relationship between the SOC and the internal resistance value of the secondary battery is stored in advance by the storage unit.
- the reference change value setting unit sets a reference change value indicating the magnitude of the change from the internal resistance value corresponding to the first SOC to the internal resistance value corresponding to the second SOC based on the relationship information. Furthermore, when the magnitude of the change from the first resistance value to the second resistance value is different from the magnitude of the change indicated by the reference change value, the determination unit determines that an abnormality has occurred in the secondary battery. .
- the first timing is a timing at which the secondary battery is discharged
- the second timing is a timing at which the set time has elapsed from the first timing and the secondary battery is discharged. It is preferable that
- Secondary batteries have the property that the change in internal resistance value is larger during discharging than during charging. Therefore, according to this configuration, the magnitude of the change used for the determination is determined by performing the abnormality determination based on the magnitude of the change from the first resistance value to the second resistance value obtained during the discharge. As a result of being larger than the inside, it is possible to improve the accuracy of secondary battery abnormality detection.
- a voltage detection unit that detects a terminal voltage of the secondary battery may be further included, and the SOC detection unit may obtain the SOC by converting the terminal voltage detected by the voltage detection unit into an SOC. preferable.
- the SOC detection unit can obtain the SOC by converting the terminal voltage detected by the voltage detection unit into the SOC.
- a temperature detection unit that detects the temperature of the secondary battery is further provided, and the SOC detection unit corrects the SOC by adding a correction value to the SOC obtained by converting the terminal voltage.
- the correction value is preferably increased as the temperature detected by the temperature detection unit is higher.
- the terminal voltage of the secondary battery has a characteristic that it decreases as the temperature increases even with the same SOC. Therefore, based on the correspondence between the SOC and the terminal voltage at a certain temperature, when the terminal voltage of the secondary battery is converted into the SOC as it is regardless of the actual temperature, the calculated SOC is actually higher as the temperature is higher. It becomes a value smaller than the SOC. Therefore, the SOC detection unit corrects the SOC by adding a correction value to the SOC obtained by converting the terminal voltage, and increases the correction value as the temperature detected by the temperature detection unit is higher. Thereby, the detection accuracy of SOC can be improved.
- a current detection unit that detects a current flowing through the secondary battery is further provided, and the SOC detection unit calculates the SOC by integrating the current detected by the current detection unit.
- the terminal voltage depends on the temperature as in the case of converting the terminal voltage to the SOC. There is no error.
- the reference variation value setting unit obtains the internal resistance value that is associated with the SOC 1 is the first 1SOC by the relationship information stored in the storage unit as the internal resistance standard value Rx 1, the relationship The internal resistance value associated with the SOC 2 that is the second SOC is acquired as the internal resistance reference value Rx 2 according to the information.
- the change value X is in the range from the reference change upper limit value Xu to the reference change lower limit value Xd. It is preferable to determine that no abnormality has occurred in the secondary battery.
- the reference change upper limit value Xu and the reference change lower limit value Xd which are reference change values, are set by the reference change value setting unit, and the determination unit based on the reference change upper limit value Xu and the reference change lower limit value Xd. It is easy to determine the abnormality of the secondary battery.
- the reference change value used as the abnormality determination reference reflects the SOC at the first and second timings.
- the accuracy of abnormality detection of the secondary battery can be improved over the background art that detects abnormality based on the amount of change in the internal resistance of the secondary battery caused by charging.
- the battery abnormality detection circuit and the power supply device are used in mobile fields such as mobile phones and personal computers, power tools such as electric tools and vacuum cleaners, electric vehicles, electric industrial vehicles, electric motorcycles, electric assist bicycles, etc. It can be suitably used as a battery abnormality detection circuit and a power supply device for secondary batteries in a wide range of fields such as fields, system power supply fields such as peak shift and backup.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Tests Of Electric Status Of Batteries (AREA)
Abstract
Description
Xu=(Rx2/Rx1)+Cx ・・・(2)
Xd=(Rx2/Rx1)-Cx ・・・(3)
SOC1<SOC2のとき
Xu=(Rx1/Rx2)+Cx ・・・(4)
Xd=(Rx1/Rx2)-Cx ・・・(5)
但し、Cxは、リチウム二次電池12の特性バラツキや測定誤差等によって生じる基準変化値の誤差を表す値である。
X=R2/R1 ・・・(6)
SOC1<SOC2のとき
X=R1/R2 ・・・(7)
Xd=(Rx2/Rx1)-Cx ・・・(B)
Xu=(Rx1/Rx2)+Cx ・・・(C)
Xd=(Rx1/Rx2)-Cx ・・・(D)
但し、Cxは、前記基準変化値の誤差を表す値である。
X=R1/R2 ・・・(F)
Claims (7)
- 二次電池のSOCを検出するSOC検出部と、
前記二次電池の内部抵抗値を検出する内部抵抗検出部と、
所定の第1タイミングにおいて、前記SOC検出部によって検出されたSOCを第1SOC、前記内部抵抗検出部によって検出された内部抵抗値を第1抵抗値として取得する第1状態取得部と、
前記第1タイミングから予め設定された設定時間以上経過した第2タイミングにおいて、前記SOC検出部によって検出されたSOCを第2SOC、前記内部抵抗検出部によって検出された内部抵抗値を第2抵抗値として取得する第2状態取得部と、
前記二次電池の、SOCと内部抵抗値との対応関係を示す関係情報を予め記憶する記憶部と、
前記記憶部に記憶されている関係情報に基づいて、前記第1SOCと対応する内部抵抗値から前記第2SOCと対応する内部抵抗値への変化の大きさを示す基準変化値を設定する基準変化値設定部と、
前記第1抵抗値から前記第2抵抗値への変化の大きさが、前記基準変化値設定部により設定された基準変化値により示される変化の大きさと異なる場合、前記二次電池に異常が生じていると判定する判定部と
を備える電池異常検出回路。 - 前記第1タイミングは、
前記二次電池が放電しているタイミングであり、
前記第2タイミングは、
前記第1タイミングから前記設定時間以上経過し、かつ前記二次電池が放電しているタイミングである
請求項1記載の電池異常検出回路。 - 前記二次電池の端子電圧を検出する電圧検出部をさらに備え、
前記SOC検出部は、
前記電圧検出部によって検出された端子電圧をSOCに換算することによって、前記SOCを取得する
請求項2記載の電池異常検出回路。 - 前記二次電池の温度を検出する温度検出部をさらに備え、
前記SOC検出部は、
前記端子電圧を換算することによって得られたSOCに補正値を加算することで当該SOCを補正すると共に、前記温度検出部によって検出される温度が高いほど、前記補正値を増大させる
請求項3記載の電池異常検出回路。 - 前記二次電池に流れる電流を検出する電流検出部をさらに備え、
前記SOC検出部は、
前記電流検出部によって検出された電流を積算することにより、前記SOCを算出する
請求項1又は2記載の電池異常検出回路。 - 前記基準変化値設定部は、
前記記憶部に記憶されている関係情報によって前記第1SOCであるSOC1と対応づけられている内部抵抗値を内部抵抗基準値Rx1として取得し、当該関係情報によって前記第2SOCであるSOC2と対応づけられている内部抵抗値を内部抵抗基準値Rx2として取得し、
SOC1>SOC2のときは下記の式(A)(B)を用い、SOC1<SOC2のときは下記の式(C)(D)を用いて、前記内部抵抗基準値Rx1から前記内部抵抗基準値Rx2への変化の大きさを示す指標としての基準変化値である基準変化上限値Xuと基準変化下限値Xdとを算出し、
前記判定部は、
前記第1抵抗値R1から前記第2抵抗値R2への変化の大きさを示す指標である変化値Xを、SOC1>SOC2のときは下記の式(E)を用いて、SOC1<SOC2のときは下記の式(F)を用いて算出し、
当該算出された変化値Xが、前記基準変化上限値Xuから前記基準変化下限値Xdまでの範囲外である場合、前記二次電池に異常が生じていると判定し、当該変化値Xが、前記基準変化上限値Xuから前記基準変化下限値Xdまでの範囲内である場合、前記二次電池に異常は生じていないと判定する
請求項1~5のいずれか1項に記載の電池異常検出回路。
Xu=(Rx2/Rx1)+Cx ・・・(A)
Xd=(Rx2/Rx1)-Cx ・・・(B)
Xu=(Rx1/Rx2)+Cx ・・・(C)
Xd=(Rx1/Rx2)-Cx ・・・(D)
但し、Cxは、前記基準変化値の誤差を表す値である。
X=R2/R1 ・・・(E)
X=R1/R2 ・・・(F) - 請求項1~6のいずれか1項に記載の電池異常検出回路と、
前記二次電池と
を備える電源装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010800037769A CN102282477A (zh) | 2009-03-24 | 2010-03-04 | 电池异常检测电路及电源装置 |
US13/142,257 US8269463B2 (en) | 2009-03-24 | 2010-03-04 | Battery abnormality detection circuit and power supply device |
EP10755589A EP2378303A1 (en) | 2009-03-24 | 2010-03-04 | Cell abnormality detection circuit and power supply device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009-071540 | 2009-03-24 | ||
JP2009071540A JP2010223768A (ja) | 2009-03-24 | 2009-03-24 | 電池異常検出回路、及び電源装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010109784A1 true WO2010109784A1 (ja) | 2010-09-30 |
Family
ID=42780484
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2010/001502 WO2010109784A1 (ja) | 2009-03-24 | 2010-03-04 | 電池異常検出回路、及び電源装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8269463B2 (ja) |
EP (1) | EP2378303A1 (ja) |
JP (1) | JP2010223768A (ja) |
KR (1) | KR20110139187A (ja) |
CN (1) | CN102282477A (ja) |
WO (1) | WO2010109784A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017514463A (ja) * | 2014-04-30 | 2017-06-08 | フィリップ・モーリス・プロダクツ・ソシエテ・アノニム | 電池表示を備えたエアロゾル発生装置 |
JP2017208344A (ja) * | 2016-05-20 | 2017-11-24 | ドクター エンジニール ハー ツェー エフ ポルシェ アクチエンゲゼルシャフトDr. Ing. h.c. F. Porsche Aktiengesellschaft | 自動車用のエネルギー貯蔵ユニット、およびエネルギー貯蔵ユニットを取り付けるための方法 |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5293891B2 (ja) * | 2010-06-18 | 2013-09-18 | トヨタ自動車株式会社 | 劣化度合判定装置 |
JP5337842B2 (ja) * | 2011-06-29 | 2013-11-06 | 株式会社日立製作所 | 二次電池システム |
JP5857229B2 (ja) * | 2011-09-30 | 2016-02-10 | パナソニックIpマネジメント株式会社 | 内部抵抗検出回路、及び電池電源装置 |
CN103308858A (zh) * | 2012-03-07 | 2013-09-18 | 深圳市柏特瑞电子有限公司 | 一种蓄电池内阻在线巡检系统 |
JP5606488B2 (ja) * | 2012-04-19 | 2014-10-15 | 三菱電機株式会社 | 車載電源装置 |
JP5768769B2 (ja) * | 2012-06-26 | 2015-08-26 | トヨタ自動車株式会社 | 二次電池の検査方法 |
KR101930089B1 (ko) * | 2012-07-27 | 2018-12-17 | 현대모비스 주식회사 | 셀-임피던스를 이용한 차량용 배터리팩 관리 방법 |
JP6040684B2 (ja) * | 2012-09-28 | 2016-12-07 | 富士通株式会社 | 二次電池の状態評価装置、二次電池の状態評価方法、及び、二次電池の状態評価プログラム |
CN104685367B (zh) * | 2012-11-29 | 2017-09-08 | 株式会社Lg化学 | 用于估计包括混合正极材料的二次电池的功率的设备和方法 |
JP2014232506A (ja) * | 2013-05-30 | 2014-12-11 | 日産自動車株式会社 | 演算装置 |
JP5852087B2 (ja) * | 2013-11-25 | 2016-02-03 | プライムアースEvエナジー株式会社 | 使用済み二次電池の選択方法、及び、組電池の製造方法 |
KR102247052B1 (ko) | 2014-07-21 | 2021-04-30 | 삼성전자주식회사 | 배터리의 이상 상태를 감지하는 장치 및 방법 |
US9983266B2 (en) | 2015-03-30 | 2018-05-29 | Eaton Intelligent Power Limited | Apparatus and methods for battery monitoring using discharge pulse measurements |
CN107870301B (zh) | 2016-09-27 | 2020-09-04 | 华为技术有限公司 | 一种电池微短路的检测方法及装置 |
US10969437B2 (en) | 2017-08-25 | 2021-04-06 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Electronic device, and battery abnormality monitoring method and monitoring system thereof |
WO2019131741A1 (ja) * | 2017-12-27 | 2019-07-04 | 古河電気工業株式会社 | 充電可能電池異常検出装置および充電可能電池異常検出方法 |
DE112018006835T5 (de) * | 2018-01-11 | 2020-10-15 | Semiconductor Energy Laboratory Co., Ltd. | Vorrichtung zur Anomalie-Erkennung einer Sekundärbatterie, Verfahren zur Anomalie-Erkennung und Programm |
JP7006359B2 (ja) * | 2018-02-21 | 2022-01-24 | トヨタ自動車株式会社 | 電池の発煙判定方法および電池システム |
JP7003751B2 (ja) * | 2018-03-12 | 2022-01-21 | トヨタ自動車株式会社 | 電池診断装置及び電池診断方法 |
US11719675B2 (en) * | 2018-05-11 | 2023-08-08 | Battery Solutions, LLC | Gas detection device for lithium-ion battery storage system |
JPWO2020174299A1 (ja) * | 2019-02-25 | 2020-09-03 | ||
JP7072534B2 (ja) * | 2019-03-27 | 2022-05-20 | 本田技研工業株式会社 | 二次電池、二次電池の制御方法、プログラムおよび制御装置 |
JP7072539B2 (ja) * | 2019-04-11 | 2022-05-20 | 本田技研工業株式会社 | 設定装置、設定方法、プログラムおよび制御装置 |
KR20210004646A (ko) * | 2019-07-05 | 2021-01-13 | 주식회사 엘지화학 | 배터리 셀 진단 장치 및 방법 |
KR20210087294A (ko) | 2020-01-02 | 2021-07-12 | 주식회사 엘지에너지솔루션 | 배터리 관리 장치 및 방법 |
WO2021142676A1 (zh) * | 2020-01-15 | 2021-07-22 | 深圳市大疆创新科技有限公司 | 电池异常检测方法、系统、电池和可移动平台 |
CN111257775A (zh) * | 2020-02-24 | 2020-06-09 | 上海蔚来汽车有限公司 | 基于充电过程监控电池阻抗异常的方法、系统以及装置 |
CN113533985B (zh) * | 2021-06-28 | 2024-05-03 | 合肥国轩高科动力能源有限公司 | 一种电池包内阻异常模块的识别方法及其存储介质 |
CN114705995A (zh) * | 2022-03-25 | 2022-07-05 | 章鱼博士智能技术(上海)有限公司 | 一种电连接状态识别方法、装置、设备及存储介质 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000215923A (ja) * | 1999-01-25 | 2000-08-04 | Matsushita Electric Ind Co Ltd | 電池劣化判定装置 |
JP2003204627A (ja) | 2001-09-14 | 2003-07-18 | Matsushita Electric Ind Co Ltd | バッテリ制御装置 |
JP2008253129A (ja) * | 2007-03-07 | 2008-10-16 | Matsushita Electric Ind Co Ltd | リチウム系二次電池の急速充電方法およびそれを用いる電子機器 |
JP2009071540A (ja) | 2007-09-12 | 2009-04-02 | Ricoh Co Ltd | 画像入力システム、画像入力方法、プログラム及び記憶媒体 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3811371A1 (de) * | 1988-04-05 | 1989-10-19 | Habra Elektronik | Verfahren zum laden und gleichzeitigen pruefen des zustandes eines nickelcadmium-akkumulators |
JP3598873B2 (ja) * | 1998-08-10 | 2004-12-08 | トヨタ自動車株式会社 | 二次電池の状態判定方法及び状態判定装置、並びに二次電池の再生方法 |
JP2002042895A (ja) * | 2000-07-19 | 2002-02-08 | Honda Motor Co Ltd | バッテリの状態検出装置 |
DE10321720A1 (de) * | 2002-05-14 | 2003-12-04 | Yazaki Corp | Verfahren zum Abschätzen des Ladezustandes und der Leerlaufspannung einer Batterie, sowie Verfahren und Vorrichtung zum Berechnen des Degradationsgrades einer Batterie |
JP4821962B2 (ja) * | 2005-06-30 | 2011-11-24 | トヨタ自動車株式会社 | 燃料電池システム |
JP5220269B2 (ja) * | 2005-09-16 | 2013-06-26 | 古河電気工業株式会社 | 蓄電池の劣化状態・充電状態の検知方法及びその装置 |
JP4690223B2 (ja) * | 2006-02-24 | 2011-06-01 | 株式会社デンソー | バッテリの状態量演算装置 |
JP4499810B2 (ja) * | 2008-05-28 | 2010-07-07 | 株式会社日本自動車部品総合研究所 | 車載バッテリの状態推定装置 |
JP5106272B2 (ja) * | 2008-06-30 | 2012-12-26 | パナソニック株式会社 | 劣化判定回路、電源装置、及び二次電池の劣化判定方法 |
-
2009
- 2009-03-24 JP JP2009071540A patent/JP2010223768A/ja not_active Ceased
-
2010
- 2010-03-04 WO PCT/JP2010/001502 patent/WO2010109784A1/ja active Application Filing
- 2010-03-04 US US13/142,257 patent/US8269463B2/en not_active Expired - Fee Related
- 2010-03-04 EP EP10755589A patent/EP2378303A1/en not_active Withdrawn
- 2010-03-04 CN CN2010800037769A patent/CN102282477A/zh active Pending
- 2010-03-04 KR KR1020117014289A patent/KR20110139187A/ko not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000215923A (ja) * | 1999-01-25 | 2000-08-04 | Matsushita Electric Ind Co Ltd | 電池劣化判定装置 |
JP2003204627A (ja) | 2001-09-14 | 2003-07-18 | Matsushita Electric Ind Co Ltd | バッテリ制御装置 |
JP2008253129A (ja) * | 2007-03-07 | 2008-10-16 | Matsushita Electric Ind Co Ltd | リチウム系二次電池の急速充電方法およびそれを用いる電子機器 |
JP2009071540A (ja) | 2007-09-12 | 2009-04-02 | Ricoh Co Ltd | 画像入力システム、画像入力方法、プログラム及び記憶媒体 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017514463A (ja) * | 2014-04-30 | 2017-06-08 | フィリップ・モーリス・プロダクツ・ソシエテ・アノニム | 電池表示を備えたエアロゾル発生装置 |
US11147316B2 (en) | 2014-04-30 | 2021-10-19 | Philip Morris Products S.A. | Aerosol generating device with battery indication |
JP2017208344A (ja) * | 2016-05-20 | 2017-11-24 | ドクター エンジニール ハー ツェー エフ ポルシェ アクチエンゲゼルシャフトDr. Ing. h.c. F. Porsche Aktiengesellschaft | 自動車用のエネルギー貯蔵ユニット、およびエネルギー貯蔵ユニットを取り付けるための方法 |
US11217834B2 (en) | 2016-05-20 | 2022-01-04 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Energy storage unit for a motor vehicle battery, and method for fitting an energy storage unit |
Also Published As
Publication number | Publication date |
---|---|
KR20110139187A (ko) | 2011-12-28 |
EP2378303A1 (en) | 2011-10-19 |
US20110254559A1 (en) | 2011-10-20 |
JP2010223768A (ja) | 2010-10-07 |
CN102282477A (zh) | 2011-12-14 |
US8269463B2 (en) | 2012-09-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2010109784A1 (ja) | 電池異常検出回路、及び電源装置 | |
JP5051661B2 (ja) | 二次電池のsoc値を推定する方法及び装置並びに劣化判定方法及び装置 | |
US8996324B2 (en) | Battery-state monitoring apparatus | |
US10261136B2 (en) | Battery degradation degree estimation device and battery degradation degree estimation method | |
WO2011108249A1 (ja) | 満充電容量値補正回路、電池パック、及び充電システム | |
US8994334B2 (en) | Battery state-of-charge calculation device | |
JP4997358B2 (ja) | 満充電容量補正回路、充電システム、電池パック、及び満充電容量補正方法 | |
JP5091805B2 (ja) | 劣化判定回路、電池システム、及び劣化判定方法 | |
JP2009193919A (ja) | 残寿命推定回路、及び残寿命推定方法 | |
JPWO2008026477A1 (ja) | 二次電池のsoc値を推定する方法及び装置並びに劣化判定方法及び装置 | |
JP2017009577A (ja) | 状態推定装置及び状態推定方法 | |
JP2011137681A (ja) | インピーダンス検出回路、電池電源装置、及び電池利用システム | |
KR20070091554A (ko) | 배터리 팩과, 그 잔여 용량 정보 공급 장치 및 잔여 용량정보 공급 방법과 프로그램 | |
JP2011151983A (ja) | Soc検出回路、及び電池電源装置 | |
JP2012253975A (ja) | アルカリ蓄電池の充放電制御方法および充放電システム | |
CN109061498B (zh) | 一种电池剩余电量计量芯片及计量方法 | |
JP4764971B2 (ja) | 電池の残量計測装置 | |
US20110311850A1 (en) | Secondary battery device | |
JP4016881B2 (ja) | 電池の残量計測装置 | |
JP2009052974A (ja) | 電池容量推定回路、及び電池パック | |
CN108983109B (zh) | 用于电池的电流估算芯片、估算方法及剩余电量计量系统 | |
JP2005195388A (ja) | 電池の残量計測装置 | |
JP4660367B2 (ja) | 二次電池の残存容量検出方法 | |
JP2007170953A (ja) | 二次電池の劣化判定装置 | |
JP2011130528A (ja) | 充電電気量算出回路、電池パック、及び電池搭載システム |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201080003776.9 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 10755589 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2010755589 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 20117014289 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13142257 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |