WO2013084353A1 - 電池制御装置 - Google Patents
電池制御装置 Download PDFInfo
- Publication number
- WO2013084353A1 WO2013084353A1 PCT/JP2011/078575 JP2011078575W WO2013084353A1 WO 2013084353 A1 WO2013084353 A1 WO 2013084353A1 JP 2011078575 W JP2011078575 W JP 2011078575W WO 2013084353 A1 WO2013084353 A1 WO 2013084353A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- battery
- unit
- determined
- value
- counter
- 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
-
- 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
-
- 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
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
-
- 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
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
-
- 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 a battery control device.
- batteries such as nickel metal hydride storage batteries and lithium ion storage batteries have been used as power supply sources for driving electric vehicles and hybrid vehicles.
- An automobile equipped with these batteries is equipped with a battery control device for monitoring and controlling the batteries. When an abnormality occurs in the battery state, it is necessary to appropriately detect the abnormality in the battery control device in order to ensure safety.
- An abnormality determination method described in Patent Document 1 is known as a technique related to battery abnormality detection. According to this abnormality determination method, the voltage between the terminals of the battery is sampled every predetermined period, and when the difference from the sampling value of the previous period is not within the predetermined range, it is determined as abnormal.
- Anomalies that generally occur in the state of a battery include a permanent cause such as a failure and a temporary cause such as the influence of noise. In the former case, it is necessary to reliably determine that there is an abnormality, but in the latter case, the cause can be resolved naturally and the normal state can be restored, and thus it should not be determined as abnormal. However, the abnormality determination method described in Patent Document 1 cannot distinguish between these abnormalities and make an appropriate determination.
- the present invention has been made in view of the above points, and an object of the present invention is to provide a battery control device that can appropriately determine abnormality of the battery state.
- the battery control device determines an acquisition unit that acquires a measurement value related to the state of the battery every predetermined period, determines whether or not the measurement value is within a predetermined range, and the determination result And a determination processing unit that determines whether the state of the battery is normal or abnormal based on the above.
- the determination processing unit determines that the battery state is abnormal when the number of times that the measurement unit determines that the measurement value is not within the range until the acquisition unit acquires the measurement value a predetermined reference number of times has reached a predetermined threshold value.
- the measurement value is based on the measurement value acquired by the acquisition unit exceeding the reference number of times. Until the number of times it is determined that the battery is not within the range reaches a threshold value or the measurement value is determined to be within the range, the determination of whether the battery state is normal or abnormal is extended.
- the battery control device includes a first counter that is added according to the number of times the acquisition unit acquires the measurement value, and a determination unit that the measurement value is not within the range. There may be further provided a storage unit that stores a second counter that is added according to the number of times determined by.
- the determination processing unit determines whether or not the first counter is equal to or greater than the reference number, and the first counter is equal to or greater than the reference number. If there is, it is preferable to determine that the state of the battery is normal. If it is determined that the measured value is not within the range, it is determined whether or not the second counter is equal to or greater than the threshold value. If the second counter is equal to or greater than the threshold value, it is determined that the battery state is abnormal. It is preferable.
- the reference number is larger than a threshold value.
- the determination processing unit can set one of a plurality of operation modes, and the operation set in the determination processing unit Depending on the mode, at least one of the reference number and the threshold value may be changed.
- the acquisition unit acquires at least the temperature of the battery as a measurement value, and the reference count and the threshold value according to the temperature of the battery. Any one of the above may be changed.
- the battery control device of the present invention it is possible to appropriately determine an abnormality in the battery state.
- the figure which showed case 5 for demonstrating the specific example of abnormality determination.
- a battery system that constitutes a power source of an electric vehicle (EV), a hybrid vehicle (HEV), a plug-in hybrid vehicle (PHEV), and the like.
- EV electric vehicle
- HEV hybrid vehicle
- PHEV plug-in hybrid vehicle
- a lithium ion battery can be adopted.
- a nickel metal hydride battery, a lead battery, an electric double layer capacitor, a hybrid capacitor, or the like can be used.
- the assembled batteries are configured by connecting the cells in series.
- the assembled batteries may be configured by connecting the cells connected in parallel, or by connecting the cells connected in series.
- a battery pack may be configured by connecting batteries in parallel.
- FIG. 1 is a block diagram showing a configuration of a battery system 100 and its surroundings according to an embodiment of the present invention.
- Battery system 100 is connected to inverter 400 via relays 300 and 310, and connected to charger 420 via relays 320 and 330.
- the battery system 100 includes an assembled battery 110, a single battery management unit 120, a current detection unit 130, a voltage detection unit 140, an assembled battery control unit 150, and a storage unit 180.
- the assembled battery 110 is composed of a plurality of unit cells 111.
- the unit cell management unit 120 monitors the state of the unit cell 111 by detecting the battery voltage and temperature of each unit cell 111, and outputs the result to the assembled battery control unit 150.
- the current detection unit 130 detects the charge / discharge current flowing through the battery system 100 and outputs the detected current value to the assembled battery control unit 150.
- the voltage detection unit 140 detects the total voltage of the assembled battery 110 and outputs the detected voltage value to the assembled battery control unit 150.
- the assembled battery control unit 150 controls the assembled battery 110.
- the assembled battery control unit 150 is realized by, for example, a microcomputer or a memory, and functionally includes an acquisition unit 150a, a determination processing unit 150b, and a storage unit 150c.
- the acquisition unit 150a acquires information on measurement results regarding the state of the assembled battery 110 as described above from the single cell management unit 120, the current detection unit 130, and the voltage detection unit 140, respectively. That is, information on the battery voltage and temperature of each unit cell 111 transmitted by the unit cell management unit 120, information on the charge / discharge current transmitted by the current detection unit 130, and the total voltage of the assembled battery 110 transmitted by the voltage detection unit 140 And receive information.
- the measurement result information regarding the state of the assembled battery 110 acquired by the assembled battery control unit 150 is collectively referred to as battery measurement information.
- the determination processing unit 150b detects the state of the assembled battery 110 based on the battery measurement information acquired by the acquisition unit 150a. At this time, the determination processing unit 150b calculates the state of charge (SOC: State of Charge), the deterioration state (SOH: State of Health), and the like of each cell 111 constituting the battery pack 110, and Judge whether the status is normal or abnormal. A method for determining whether the state of the assembled battery 110 is normal or abnormal will be described in detail later.
- the state detection result of the assembled battery 110 performed by the determination processing unit 150b is transmitted from the assembled battery control unit 150 to the single cell management unit 120 and the vehicle control unit 200.
- the storage unit 150c stores various types of information used by the determination processing unit 150b to make the above determination. Information stored in the storage unit 150c is read or rewritten as necessary under the control of the determination processing unit 150b.
- the assembled battery 110 is configured by electrically connecting a plurality of unit cells 111 capable of storing and releasing electrical energy (charging and discharging DC power) in series.
- the unit cells 111 constituting the assembled battery 110 are grouped by a predetermined number of units, and state management and control by the unit cell management unit 120 are performed in units of groups.
- the grouped unit cells 111 are electrically connected in series to form unit cell groups 112a and 112b.
- the number of the single cells 111 constituting each of the single cell groups 112a and 112b may be the same, or the number of the single cells 111 may be different between the single cell group 112a and the single cell group 112b.
- the single cell management unit 120 monitors the state of the single cells 111 constituting the assembled battery 110.
- the unit cell management unit 120 includes unit cell control units 121a and 121b provided corresponding to the unit cell groups 112a and 112b, respectively.
- the unit cell control units 121a and 121b monitor and control the state of each unit cell 111 constituting each unit cell group 112a and 112b.
- unit cells 111 are electrically connected in series to form unit cell groups 112a and 112b, and the unit cell groups 112a and 112b are further electrically connected.
- An assembled battery 110 including a total of eight unit cells 111 connected in series was obtained.
- the number of unit cells or the number of unit cells constituting the assembled battery 110 is not limited to this.
- the assembled battery control unit 150 and the single cell management unit 120 transmit and receive signals to and from each other via an insulating element 170 typified by a photocoupler and a signal communication unit 160.
- the cell control units 121a and 121b are connected in series according to the descending order of potentials of the cell groups 112a and 112b monitored by each.
- a signal transmitted from the assembled battery control unit 150 to the unit cell management unit 120 is input to the unit cell control unit 121a via the signal communication unit 160 and the insulating element 170.
- the output of the unit cell control unit 121a is input to the unit cell control unit 121b via the signal communication unit 160, and the output of the lowest unit cell control unit 121b is supplied to the assembled battery control unit via the insulating element 170 and the signal communication unit 160.
- the insulating cell 170 is not interposed between the single cell control unit 121a and the single cell control unit 121b, but signals can be transmitted and received via the insulating device 170.
- Vehicle control unit 200 controls inverter 400 connected to battery system 100 via relays 300 and 310 using information transmitted by assembled battery control unit 150.
- the charger 420 connected to the battery system 100 via the relays 320 and 330 is controlled.
- the charger 420 is used when charging the assembled battery 110 using a charging facility installed in a general household power source or a public facility.
- the charger 420 is configured to control a charging voltage, a charging current, and the like based on a command from the vehicle control unit 200, but even if these controls are performed based on a command from the assembled battery control unit 150, Good.
- the charger 420 may be installed inside the vehicle or outside the vehicle depending on the configuration of the vehicle, the performance of the charger 420, the purpose of use, the installation conditions of the external power source, and the like.
- the battery system 100 When a vehicle equipped with the battery system 100 travels, the battery system 100 is connected to the inverter 400 via the relays 300 and 310 under the control of the vehicle control unit 200. At this time, the motor generator 410 is driven by the control of the inverter 400 using the energy stored in the assembled battery 110. Further, during regeneration, the assembled battery 110 is charged by the power generated by the motor generator 410.
- the battery system 100 when a vehicle including the battery system 100 is connected to a charging facility installed in a general household power source or a public facility, the battery system 100 is connected to the relay 320, based on information transmitted by the vehicle control unit 200.
- the battery charger 420 is connected to the charger 420 via 330.
- the battery pack 110 is charged until a predetermined condition is met.
- the energy stored in the assembled battery 110 by charging is used during the next vehicle travel, and is also used to operate electrical components inside and outside the vehicle. Furthermore, it may be discharged to an external power source represented by a household power source as necessary.
- FIG. 2 is a block diagram showing a circuit configuration of the unit cell control unit 121a.
- the unit cell control unit 121a and the unit cell control unit 121b basically have the same circuit configuration. Therefore, hereinafter, the single cell control unit 121a will be described as a representative example.
- the unit cell control unit 121a includes a voltage detection circuit 122, a control circuit 123, a signal input / output circuit 124, and a temperature detection unit 125. Although omitted in FIG. 2, a well-known balancing circuit or the like for equalizing variations in battery voltage and SOC generated between the single cells 111 may be further provided in the single cell control unit 121a.
- the voltage detection circuit 122 measures the battery voltage of each unit cell 111 by measuring the voltage between the terminals of each unit cell 111.
- the temperature detection unit 125 measures the temperature of each unit cell 111 by measuring the temperature of the entire unit cell group 112a and handling the temperature as the temperature of each unit cell 111 constituting the unit cell group 112a.
- the control circuit 123 receives these measurement results from the voltage detection circuit 122 and the temperature detection unit 125, and transmits them to the assembled battery control unit 150 via the signal input / output circuit 124.
- the temperature sensor is installed in the cell group 112a which is a temperature measurement target.
- the temperature detection unit 125 measures the temperature of the unit cell group 112a, that is, the temperature of each unit cell 111 by detecting a voltage corresponding to the temperature of the unit cell group 112a output from the temperature sensor.
- the measurement result is transmitted from the temperature detection unit 125 to the signal input / output circuit 124 via the control circuit 123, and is output to the outside of the unit cell control unit 121a by the signal input / output circuit 124.
- a circuit for realizing this series of flows is mounted as a temperature detection unit 125 in the single battery control unit 121a.
- the temperature detection part 125 can also be abbreviate
- the temperature of each unit cell 111 may be individually measured, and various calculations may be performed by the battery pack control unit 150 based on the measurement result.
- the configuration of the single cell control unit 121 is complicated because the number of the temperature detection units 125 increases. Become.
- FIG. 3 is a flowchart showing an abnormality determination processing procedure executed at predetermined intervals in the assembled battery control unit 150 at this time.
- the assembled battery control unit 150 acquires battery measurement information from the single cell management unit 120, the current detection unit 130, and the voltage detection unit 140 by the acquisition unit 150 a.
- the battery measurement information acquired here will be described as battery measurement information X below.
- step 1102 the assembled battery control unit 150 adds one value of the sample counter stored in the storage unit 150c by the determination processing unit 150b. This sample counter is incremented by one according to the number of times the acquisition unit 150a has acquired the battery measurement information in step 1101, and its initial value is zero.
- the assembled battery control unit 150 determines whether the battery measurement information X acquired in step 1101 is within a predetermined normal range by the determination processing unit 150b.
- each measured value of the assembled battery 110 represented by the battery measurement information X that is, the battery voltage, temperature, charge / discharge current, and total voltage, is between the lower limit value and the upper limit value individually set for each. Each is determined.
- the process proceeds to step 1104.
- at least one measured value is less than the lower limit value or greater than the upper limit value, it is determined that the battery measurement information X is not within the normal range, and the process proceeds to step 1106.
- the assembled battery control unit 150 determines whether or not the value of the sample counter is equal to or more than a predetermined reference number (here, 7) by the determination processing unit 150b in step 1104. If the value of the sample counter is 7 or more, the process proceeds to step 1105. On the other hand, if the value of the sample counter is less than 7, the flowchart of FIG. 3 is once ended, and the processing is restarted from step 1101 after waiting for the next processing timing.
- a predetermined reference number here, 7
- step 1105 the assembled battery control unit 150 determines that the state of the assembled battery 110 is normal by the determination processing unit 150b. The determination result is transmitted from the assembled battery control unit 150 to the vehicle control unit 200 immediately or at a predetermined timing.
- step 1105 the process proceeds to step 1109.
- the assembled battery control unit 150 adds one abnormality counter value stored in the storage unit 150c by the determination processing unit 150b in step 1106.
- This abnormality counter is incremented by one according to the number of times that the battery measurement information X is determined not to be within the normal range in step 1103, and its initial value is zero.
- step 1107 the assembled battery control unit 150 determines whether the value of the abnormality counter is equal to or greater than a predetermined threshold (here, 5) by the determination processing unit 150b. If the value of the abnormality counter is 5 or more, the process proceeds to step 1108. On the other hand, if the value of the abnormality counter is less than 5, the flowchart of FIG. 3 is once ended, and the processing is restarted from step 1101 after waiting for the next processing timing.
- a predetermined threshold here, 5
- step 1108 the assembled battery control unit 150 determines that the state of the assembled battery 110 is abnormal by the determination processing unit 150b.
- the determination result is transmitted from the assembled battery control unit 150 to the vehicle control unit 200 immediately or at a predetermined timing.
- step 1109 the assembled battery control unit 150 clears the value of the sample counter stored in the storage unit 150c to 0, which is an initial value, by the determination processing unit 150b.
- step 1110 the assembled battery control unit 150 causes the determination processing unit 150b to clear the value of the abnormality counter stored in the storage unit 150c to 0, which is an initial value.
- step 1110 the flowchart of FIG. 3 is terminated.
- the process described above is repeatedly executed at predetermined intervals in the assembled battery control unit 150, so that it is determined in step 1103 that the acquired battery measurement information is not within the normal range until the battery measurement information is acquired seven times. When the number of times reaches 5, it is determined that the state of the assembled battery 110 is abnormal. On the other hand, when the battery measurement information is acquired seven times, if the number of times determined in step 1103 that the acquired battery measurement information is not within the normal range is less than five times, is the state of the assembled battery 110 normal? The battery measurement information is continuously acquired without being judged as abnormal. Then, the state of the assembled battery 110 is normal until the number of times that the acquired battery measurement information is determined not to be within the normal range reaches five times or the acquired battery measurement information is determined to be within the normal range. The determination of whether there is an abnormality or not is extended.
- each measurement value of the assembled battery 110 represented by the acquired battery measurement information is within the normal range is determined in step 1103.
- the process illustrated in the flowchart of FIG. Each measurement value may be executed.
- the sampling interval for acquiring battery measurement information as sampling data is 1 second.
- the reference count of the sample counter used in the determination in step 1104 is set to 7
- the threshold value of the abnormal counter used in the determination in step 1107 is set to 5.
- FIG. 4 shows a case 1 in which all battery measurement information acquired as sampling data is within the normal range.
- the sample counter is incremented by 1 every second, and when the seventh sampling data is acquired, that is, after 7 seconds, it is determined that the state of the assembled battery 110 is normal.
- FIG. 5 shows a case 2 in which all battery measurement information acquired as sampling data is not within the normal range.
- the sample counter and the abnormality counter are incremented by 1 every second, and when the fifth sampling data is acquired, that is, after 5 seconds, it is determined that the state of the assembled battery 110 is abnormal.
- step 3 the battery measurement information acquired as sampling data is within the normal range until the third time, but has been continuously out of the normal range from the fourth time (after 4 seconds) due to a failure or the like. Shows the case.
- step 1104 is not executed and the abnormality counter is incremented in step 1106.
- the counter value of the abnormality counter is 4, that is, less than the threshold value 5 at this time, the determination in step 1107 is negative and the processing flow is temporarily ended. And it will be in a standby state until the next sampling data is acquired.
- step 1106 is executed and the abnormality counter is counted up.
- step 1108 is executed after step 1107 is affirmed, and it is determined that the state of the assembled battery 110 is abnormal.
- abnormal data is output after the third sampling data acquisition, and the abnormality can be detected no later than 5 seconds after the abnormality occurs in the state of the assembled battery 110. .
- the state of the assembled battery 110 becomes abnormal in the middle, it is possible to detect an abnormality at a speed equivalent to that in the case of the abnormality from the beginning as in the case 2.
- FIG. 7 shows the case 4 as a case 4 where the battery measurement information acquired as sampling data intermittently deviates from the normal range only twice out of seven due to the influence of noise or the like.
- the abnormality counter is counted up twice until the count value of the sample counter reaches the reference number of 7.
- the counter value is less than the threshold value of 5, a negative determination is made in step 1107. . Therefore, it is not determined in step 1108 that the state of the assembled battery 110 is abnormal during this period.
- step 1105 is executed, and it is determined that the state of the assembled battery 110 is normal.
- the battery measurement information acquired as sampling data is out of the normal range after the third time (after 3 seconds) due to a failure or the like, and is temporarily within the normal range due to the influence of noise or the like for the fifth time. It shows the case. Also in this case, as in the case 3 described above, when the battery measurement information that is not within the normal range is acquired as the seventh sampling data, the value of the abnormality counter is less than the threshold value of 5. Whether the state is normal or abnormal is not determined, and the next 8th sampling data is acquired. As a result, it is determined that the state of the assembled battery 110 is abnormal.
- the state of the assembled battery 110 is abnormal although the sampling data within the normal range is temporarily output.
- the erroneous determination of the assembled battery 110 can be performed without making an erroneous determination. It can be determined that the condition is abnormal.
- the assembled battery control unit 150 uses the obtaining unit 150a to obtain battery measurement information representing a measurement value related to the state of the assembled battery 110 at predetermined intervals (step 1101). Then, the determination processing unit 150b determines whether or not the acquired battery measurement information is within a predetermined normal range (step 1103). Based on the determination result, the state of the assembled battery 110 is normal or abnormal. It is determined whether there are any (steps 1105 and 1108). In other words, the determination processing unit 150b reaches the predetermined threshold number of times that the battery measurement information is not within the normal range until the acquisition unit 150a acquires the battery measurement information a predetermined reference number in step 1101. In this case, it is determined in step 1108 that the state of the assembled battery 110 is abnormal.
- step 1105 or step 1108 Is not executed, the process is resumed after waiting for the next processing timing.
- the number of times determined in step 1103 that the battery measurement information is not within the normal range reaches the threshold, or the battery measurement information is within the normal range.
- the determination of whether the state of the assembled battery 110 is normal or abnormal is extended. Since it did in this way, the assembled battery control part 150 can determine the abnormality of the state of the assembled battery 110 appropriately.
- the assembled battery control unit 150 uses the storage unit 150c to add a sample counter that is added in step 1102 according to the number of times the acquisition unit 150a acquires the battery measurement information, and a determination process that the battery measurement information is not within the normal range.
- the abnormality counter added in step 1106 according to the number of times determined by the unit 150b is stored. If the determination processing unit 150b determines in step 1103 that the battery measurement information is within the normal range, the determination processing unit 150b determines whether the sample counter is greater than or equal to the reference number (step 1104). As a result, if the sample counter is equal to or greater than the reference number, it is determined in step 1105 that the state of the assembled battery 110 is normal.
- step 1107 it is determined whether or not the abnormality counter is greater than or equal to a threshold value.
- the abnormality counter is greater than or equal to the threshold value, it is determined in step 1108 that the state of the assembled battery 110 is abnormal. Since it did in this way, determination of whether the state of the assembled battery 110 is normal from the determination result of step 1103 can be performed reliably.
- the present invention is not limited to the above-described embodiment, and various design changes can be made without departing from the spirit of the present invention.
- the reference number of the sample counter used for the determination in step 1104 is set to 7
- the threshold value of the abnormality counter used for the determination in step 1107 is set to 5.
- these values may be other values. Any value may be set as long as the condition that the reference number for the sample counter is larger than the threshold value for the abnormality counter is satisfied.
- At least one of the reference count of the sample counter and the threshold value of the abnormality counter may be changed according to the situation.
- any of a plurality of predetermined operation modes can be set for the assembled battery control unit 150, and these values can be changed according to the set operation mode.
- the operation mode can be set according to the state of the ignition switch of the vehicle, the operation state of the inverter 400 and the motor generator 410, the occurrence of communication errors, and the like.
- at least one of the reference count of the sample counter and the threshold value of the abnormality counter can be changed according to the temperature of the assembled battery 110 represented by the acquired battery measurement information.
- the battery voltage and temperature information of each unit cell 111, the charge / discharge current information, and the total voltage information of the assembled battery 110 are acquired as battery measurement information, and the assembled battery 110 is based on these information.
- the present invention is not limited to this. For example, acquisition of any of the above information may be omitted, or other information may be further acquired. That is, any information may be acquired as the battery measurement information as long as the information indicates the measurement result regarding the state of the assembled battery 110.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Secondary Cells (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
Description
Claims (5)
- 電池の状態に関する測定値を所定周期ごとに取得する取得部と、
前記測定値が所定の範囲内であるか否かを判定し、その判定結果に基づいて前記電池の状態が正常であるか異常であるかを判定する判定処理部とを備え、
前記判定処理部は、
前記取得部が前記測定値を所定の基準回数だけ取得するまでに前記測定値が前記範囲内でないと判定した回数が所定の閾値に達した場合、前記電池の状態が異常であると判定し、
前記取得部が前記測定値を前記基準回数だけ取得したときに前記測定値が前記範囲内でないと判定した回数が前記閾値未満である場合、前記取得部が前記基準回数を超えて取得した前記測定値に基づいて、前記測定値が前記範囲内でないと判定した回数が前記閾値に達するか、または前記測定値が前記範囲内であると判定されるまで、前記電池の状態が正常であるか異常であるかの判定を延長して行う電池制御装置。 - 請求項1に記載の電池制御装置において、
前記取得部が前記測定値を取得した回数に応じて加算される第1のカウンタと、前記測定値が前記範囲内でないと前記判定部が判定した回数に応じて加算される第2のカウンタとを記憶する記憶部をさらに備え、
前記判定処理部は、
前記測定値が前記範囲内であると判定した場合、前記第1のカウンタが前記基準回数以上であるか否かを判定して、前記第1のカウンタが前記基準回数以上であれば前記電池の状態が正常であると判定し、
前記測定値が前記範囲内でないと判定した場合、前記第2のカウンタが前記閾値以上であるか否かを判定して、前記第2のカウンタが前記閾値以上であれば前記電池の状態が異常であると判定する電池制御装置。 - 請求項1または2に記載の電池制御装置において、
前記基準回数は前記閾値よりも大きい電池制御装置。 - 請求項1乃至3のいずれか一項に記載の電池制御装置において、
前記判定処理部は、複数の動作モードのいずれかを設定可能であり、
前記判定処理部に設定された動作モードに応じて、前記基準回数および前記閾値のいずれか少なくとも一方を変化させる電池制御装置。 - 請求項1乃至4のいずれか一項に記載の電池制御装置において、
前記取得部は、前記測定値として前記電池の温度を少なくとも取得し、
前記電池の温度に応じて、前記基準回数および前記閾値のいずれか少なくとも一方を変化させる電池制御装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/363,945 US9423464B2 (en) | 2011-12-09 | 2011-12-09 | Battery control device |
JP2013548036A JP5838224B2 (ja) | 2011-12-09 | 2011-12-09 | 電池制御装置 |
PCT/JP2011/078575 WO2013084353A1 (ja) | 2011-12-09 | 2011-12-09 | 電池制御装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2011/078575 WO2013084353A1 (ja) | 2011-12-09 | 2011-12-09 | 電池制御装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013084353A1 true WO2013084353A1 (ja) | 2013-06-13 |
Family
ID=48573751
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2011/078575 WO2013084353A1 (ja) | 2011-12-09 | 2011-12-09 | 電池制御装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US9423464B2 (ja) |
JP (1) | JP5838224B2 (ja) |
WO (1) | WO2013084353A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015193109A1 (de) * | 2014-06-19 | 2015-12-23 | Lufthansa Technik Ag | System und verfahren zur überwachung einer nickel-cadmium-batterie in einem passagierflugzeug |
JP2016090416A (ja) * | 2014-11-06 | 2016-05-23 | 日立化成株式会社 | 蓄電池状態監視システム、蓄電池状態監視方法、および蓄電池状態監視プログラム |
EP2876455B1 (en) * | 2013-11-21 | 2021-04-28 | Murata Manufacturing Co., Ltd. | Device, method and program for storage member monitoring |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6015759B2 (ja) * | 2012-08-13 | 2016-10-26 | 日産自動車株式会社 | 電池モジュール |
EP2963432A4 (en) * | 2013-02-28 | 2016-11-30 | Hitachi Automotive Systems Ltd | DEVICE FOR ASSESSING THE EXTENT OF DAMAGE IN A SECONDARY CELL |
CN105164545B (zh) * | 2013-04-12 | 2018-03-30 | 东芝三菱电机产业系统株式会社 | 蓄电装置的异常检测电路及具备该电路的蓄电装置 |
KR20160123173A (ko) * | 2015-04-15 | 2016-10-25 | 삼성전자주식회사 | 부스바의 연결 상태 판단 장치 및 방법 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0311937A (ja) * | 1989-06-08 | 1991-01-21 | Canon Inc | 電子機器及び前記電子機器の電源監視方法 |
JPH10142268A (ja) * | 1996-11-11 | 1998-05-29 | Fuji Photo Film Co Ltd | 電池の充放電測定装置及び電池の充放電測定方法 |
WO2011037257A1 (ja) * | 2009-09-28 | 2011-03-31 | 日立ビークルエナジー株式会社 | 電池システム |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5095530B2 (ja) | 2008-07-03 | 2012-12-12 | 住友重機械工業株式会社 | 充放電システムの異常判定方法及び異常判定装置 |
US9577443B2 (en) * | 2010-06-03 | 2017-02-21 | C&C Power, Inc. | Battery system and management method |
US20130207592A1 (en) * | 2010-10-18 | 2013-08-15 | Ohk Research Institute | Battery Charger and Battery Charge Method |
-
2011
- 2011-12-09 US US14/363,945 patent/US9423464B2/en active Active
- 2011-12-09 JP JP2013548036A patent/JP5838224B2/ja active Active
- 2011-12-09 WO PCT/JP2011/078575 patent/WO2013084353A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0311937A (ja) * | 1989-06-08 | 1991-01-21 | Canon Inc | 電子機器及び前記電子機器の電源監視方法 |
JPH10142268A (ja) * | 1996-11-11 | 1998-05-29 | Fuji Photo Film Co Ltd | 電池の充放電測定装置及び電池の充放電測定方法 |
WO2011037257A1 (ja) * | 2009-09-28 | 2011-03-31 | 日立ビークルエナジー株式会社 | 電池システム |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2876455B1 (en) * | 2013-11-21 | 2021-04-28 | Murata Manufacturing Co., Ltd. | Device, method and program for storage member monitoring |
WO2015193109A1 (de) * | 2014-06-19 | 2015-12-23 | Lufthansa Technik Ag | System und verfahren zur überwachung einer nickel-cadmium-batterie in einem passagierflugzeug |
US10132874B2 (en) | 2014-06-19 | 2018-11-20 | Lufthansa Technik Ag | System and method for monitoring a nickel cadmium battery in a passenger aircraft |
JP2016090416A (ja) * | 2014-11-06 | 2016-05-23 | 日立化成株式会社 | 蓄電池状態監視システム、蓄電池状態監視方法、および蓄電池状態監視プログラム |
US10215813B2 (en) | 2014-11-06 | 2019-02-26 | Hitachi Chemical Company, Ltd. | Storage battery state monitoring system, storage battery state monitoring method, and storage battery state monitoring program |
Also Published As
Publication number | Publication date |
---|---|
JPWO2013084353A1 (ja) | 2015-04-27 |
JP5838224B2 (ja) | 2016-01-06 |
US20140368206A1 (en) | 2014-12-18 |
US9423464B2 (en) | 2016-08-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5868499B2 (ja) | 電池制御装置 | |
US11124072B2 (en) | Battery control device and electric motor vehicle system | |
JP6317031B2 (ja) | 電池制御装置、および、車両システム | |
US9843069B2 (en) | Battery capacity degradation resolution methods and systems | |
JP5838224B2 (ja) | 電池制御装置 | |
US10209317B2 (en) | Battery control device for calculating battery deterioration based on internal resistance increase rate | |
JP6023312B2 (ja) | 電池システム監視装置 | |
US20150346285A1 (en) | Device for Assessing Extent of Degradation of Secondary Battery | |
US10830829B2 (en) | Method for monitoring the status of a plurality of battery cells in a battery pack | |
JP5621818B2 (ja) | 蓄電システムおよび均等化方法 | |
US20150369873A1 (en) | Battery controller | |
US20140184236A1 (en) | Battery control apparatus and battery system | |
CN105471020B (zh) | 用于电池单元漏电检测的电路和方法 | |
EP3260871B1 (en) | Battery system monitoring apparatus | |
JP2017070024A (ja) | 電池監視装置 | |
JP2016226110A (ja) | 車両の充電制御装置 | |
CN107656205B (zh) | 存在电池组感测故障时对单元电压偏移的估计 | |
KR20210130102A (ko) | 조전지의 상태 판정 장치 및 상태 판정 방법 | |
JP2014223003A (ja) | 蓄電システム | |
JP5999048B2 (ja) | 蓄電システム | |
JP2014085118A (ja) | 蓄電システムおよび異常判別方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 11877029 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2013548036 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14363945 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 11877029 Country of ref document: EP Kind code of ref document: A1 |