WO2013080304A1 - 電池制御システムおよび電池制御方法 - Google Patents
電池制御システムおよび電池制御方法 Download PDFInfo
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- WO2013080304A1 WO2013080304A1 PCT/JP2011/077561 JP2011077561W WO2013080304A1 WO 2013080304 A1 WO2013080304 A1 WO 2013080304A1 JP 2011077561 W JP2011077561 W JP 2011077561W WO 2013080304 A1 WO2013080304 A1 WO 2013080304A1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
-
- 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
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- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
-
- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
-
- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/371—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with remote indication, e.g. on external chargers
-
- 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
- G01R31/3835—Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
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- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/80—Arrangements in the sub-station, i.e. sensing device
- H04Q2209/84—Measuring functions
- H04Q2209/845—Measuring functions where the measuring is synchronized between sensing devices
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- 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 system and a battery control method in which control devices for controlling storage batteries are arranged in a hierarchical structure.
- the battery control system as the technology combines battery modules 1 including a control unit 6 that controls the storage battery 7 in series or in parallel, and one relay unit 2 controls the battery module group.
- the storage battery 7 has a large capacity by a configuration in which a battery system control device 3 that manages each battery module 1 as a whole is provided via a plurality of relay units 2.
- the battery system control device 3 instructs the battery modules 1 to charge or discharge the storage battery 7 via the relay unit 2. Is managed, and the state of the communication lines 4 and 5 for transmitting and receiving the control signal and the operation state of the control device itself are managed (see Patent Document 1).
- the reason why an error occurs in the battery information acquisition time is that the communication between the relay module 2 and the battery module 1 that has received the instruction information requesting the acquisition of the battery information from the battery system control device 3 is the communication line 4. Therefore, the relay unit 2 cannot transmit the measurement instruction information to each of the battery modules 1 at the same time, and each battery module 1 is instructed to measure the battery information. This is because an error occurs in the time of receiving information. Moreover, when the battery module 1 is going to measure the battery information of the storage battery 7, depending on the type of the storage battery 7 (for example, lead storage battery, nickel metal hydride battery, lithium ion battery, etc.), it takes from the measurement instruction to the acquisition of the battery information. Time may be different.
- the battery module 1 includes the same type of storage battery 7, as the storage battery 7 deteriorates due to the passage of usage time, for example, when the old battery module 1 is replaced with a new battery module 1 due to maintenance, measurement is performed. This is because the time taken from the instruction to the acquisition of the battery information may be different, and the time taken from the measurement instruction to the acquisition of the battery information may be different depending on the temperature of each battery module 1.
- the present invention has been made in view of such a background, and the present invention is different in the type and usage of the storage battery in the battery control system in which the battery system control device, the relay device, and the battery module are constructed in a hierarchical structure. Even in this case, it is an object to provide a battery control system and a battery control method in which each battery module can acquire battery information at the same time.
- the same time in the present invention means that each battery module acquires battery information at exactly the same time, and there is less error (variation) in the time to acquire battery information than in the prior art. In some cases, it means that the battery information acquisition timing is matched.
- the relay device of the battery control system of the present invention receives battery information acquisition times from each battery module, and among the battery information acquisition times, the reference battery information acquisition time and other battery modules
- the measurement time difference information ⁇ t which is the time difference from the battery information acquisition time, is calculated for each battery module 10.
- the measurement time correction unit of each battery module corrects the measurement time by the measurement time difference information ⁇ t using the measurement time difference information ⁇ t received from the repeater, and the battery information acquisition time of each battery module is the same time. To be.
- each battery module is at the same time.
- a battery control system and a battery control method for acquiring battery information can be provided.
- FIG. 1 is a diagram for explaining the overall configuration of the battery control system 80 according to the present embodiment.
- the battery control system 80 includes a plurality of battery modules 10 (“1”, “1”, and “1”, which includes a control unit 11 that measures battery information of the storage battery 7 and controls charge / discharge of the storage battery 7. “2”,..., “M”) and a plurality of relay units 20 (“1”, “2”) connected to the plurality of battery modules 10 via the communication line 4 and controlling the plurality of battery modules 10 as a whole. ,..., “N”) and a battery system controller 30 connected to the plurality of relay devices 20 via the communication line 5 and controlling the entire battery control system 80.
- a set of one repeater 20 and a plurality of battery modules 10 (“1”, “2”,..., “N”) connected to the repeater 20 is referred to as a battery pack 40.
- the storage battery 7 may be comprised with the single cell, and may be comprised with the some cell.
- the battery module 10 Compared with the battery module 1 in the conventional battery control system 8 shown in FIG. 5, the battery module 10 according to the present embodiment has a characteristic configuration in the control unit 11 and corrects the measurement time of battery information. Part 115 is provided (details will be described later).
- the control unit 11 acquires battery information such as temperature information, voltage, and SOC of the storage battery 7 and transmits the acquired battery information and the time (battery information acquisition time) when the battery information is acquired to the relay device 20. To do.
- the relay machine 20 totals the battery information and the battery information acquisition time transmitted from each battery module 10 and transmits the battery information to the battery system control device 30 as battery module total information 230 (see FIG. 3 to be described later).
- the battery system control device 30 acquires and totals each battery module total information 230 transmitted from each relay device 20. Then, the battery system control device 30 generates battery pack total information 330 (see FIG. 3 to be described later) in which the battery module total information 230 is totaled, and displays it on a display unit 35 (see FIG. 3 to be described later) such as a display. .
- FIG. 2 is a diagram for explaining the outline of the battery information 100 acquisition process in the battery control system 80 according to the present embodiment.
- the battery module 10 according to the present embodiment stores the measurement time difference information ⁇ t transmitted from the relay device 20 to each battery module 10, and the measurement information (measurement instruction) of the battery information 100 from the relay device 20.
- the measurement time correction unit 115 delays the measurement start time by the measurement time difference information ⁇ t and starts measurement.
- the measurement time difference information ⁇ t indicates a time for delaying the measurement start time to match the same time so that each battery module 10 acquires the battery information 100 at the same time, that is, a time for adjusting the measurement timing. Information.
- FIG. 2A is a diagram for explaining processing for determining the measurement time difference information ⁇ t between the relay device 20 and the battery module 10.
- FIG. 2B shows that the battery module 10 acquires the battery information 100 by delaying the measurement start time by the time of the measurement time difference information ⁇ t, and the acquired information and the battery information acquisition time 150 are transferred to the relay device 20. It is a figure for demonstrating the process transmitted to.
- FIG. 2A only one of the battery modules 10 is illustrated and described, but the same processing described below is performed in the other battery modules 10 as well. Further, in FIG. 2A, illustration of the battery system control device 30 is omitted.
- the relay device 20 that has received the instruction information (measurement instruction information) for requesting the acquisition of the battery information 100 from the battery system control device 30, as shown in FIG.
- the instruction information (measurement instruction information) is transmitted (step S1).
- the battery module 10 that has received the measurement instruction information acquires the battery information 100 of its own storage battery 7 and its battery information acquisition time 150 in the process of acquiring the battery information 100 in the initial state, and transmits it to the relay device 20.
- the initial state means that the battery module 10 does not store the measurement time difference information ⁇ t and acquires the battery information 100 without the adjustment process of the measurement start time by the process of the measurement time correction unit 115. To do.
- the relay device 20 generates measurement time difference information ⁇ t corresponding to each battery module 10 and transmits the battery module 10 (step S3). Specifically, when the relay device 20 receives the battery information 100 and the battery information acquisition time 150 from each battery module 10 (“1”, “2”,..., “M”), it acquires the latest battery information. In order to detect the battery module 10 at time 150 and match the timing of the battery information acquisition time 150, measurement time difference information ⁇ t ( ⁇ t 1) that is the time difference between the latest battery information acquisition time 150 and the other battery information acquisition time 150 , ⁇ t 2 ,..., ⁇ t m ). Then, the relay 20 transmits the measurement time difference information ⁇ t ( ⁇ t 1 , ⁇ t 2 ,..., ⁇ t m ) corresponding to each battery module 10 (“1”, “2”,. It transmits to the battery module 10.
- the measurement time correction unit 115 of each battery module 10 (“1”, “2”,..., “M”) stores each received measurement time difference information ⁇ t ( ⁇ t 1 , ⁇ t 2 ,..., ⁇ t m ). (Not shown).
- the battery module 10 receives instruction information (measurement instruction information) for requesting acquisition of the battery information 100 from the repeater 20 via the communication line 4.
- the measurement instruction information reaches the communication slots (1 to m) corresponding to the battery modules 10.
- the battery module 10 starts measurement with a delay of the measurement time difference information ⁇ t stored in the storage unit of the battery module 10 from the beginning of the communication cycle.
- the battery module 10 acquires the battery information 100 and sets the acquired time as the battery information acquisition time 150.
- the measurement time of the battery information 100 may vary depending on the use state such as the type and temperature of the storage battery 7 and the degree of deterioration of the storage battery 7.
- the battery module 10 transmits the acquired battery information 100 and its battery information acquisition time 150 to the relay device 20 using the communication slots (1 to m) corresponding to each battery module 10 in the next cycle.
- each battery module 10 the battery module 10 ( “1”, “2”, ..., “m") measured corresponding to each time difference information ⁇ t ( ⁇ t 1, ⁇ t 2, ..., ⁇ t By delaying the measurement start time by m 2 ), the battery information 100 can be acquired at the same time.
- FIG. 3 is a functional block diagram illustrating configuration examples of the battery module 10, the relay device 20, and the battery system control device 30 of the battery control system 80 according to the present embodiment.
- the battery module 10 includes a control unit 11, a communication unit 12, and a storage unit 13.
- the control unit 11 is responsible for overall processing such as measurement of the battery information 100 of the storage battery 7 and control of charging / discharging of the storage battery 7.
- the transmission / reception unit 111 controls transmission / reception of information with the relay machine 20 via the communication unit 12.
- the storage battery controller unit 112 receives a control signal of the storage battery 7 from the battery system control device 30 via the relay device 20, and controls charging / discharging of the storage battery 7 connected to itself.
- the acquisition time measurement unit 113 measures the time when the battery information acquisition unit 114 acquires the battery information 100 such as temperature information, voltage, and SOC, and the measured battery information acquisition time 150 is stored in the battery information acquisition unit 114. hand over.
- the battery information acquisition unit 114 receives the measurement instruction information of the battery information 100 from the relay device 20 and acquires the battery information 100 of the storage battery 7. At this time, when the battery information acquisition unit 114 receives an instruction from the measurement time correction unit 115 to delay the measurement start by the measurement time difference information ⁇ t, the battery information acquisition unit 114 starts acquiring the battery information 100 by delaying the measurement time difference information ⁇ t. To do. Further, the battery information acquisition unit 114 receives the battery information acquisition time 150 that is the time when the battery information 100 is acquired from the acquisition time measurement unit 113, and sends the battery information 100 and the battery information acquisition time 150 to the communication unit 12. To the relay station 20.
- the measurement time correction unit 115 receives the measurement time difference information ⁇ t from the relay machine 20 and stores it in the storage unit 13.
- the measurement time correction unit 115 delays the start of measurement of the battery information 100 by the measurement time difference information ⁇ t stored in the storage unit 13 when the battery information acquisition unit 114 receives the measurement instruction information of the battery information 100. To instruct.
- the communication unit 12 includes a communication interface for transmitting and receiving information to and from the repeater 20.
- the storage unit 13 includes storage means such as a flash memory or a RAM (Random Access Memory), and stores the above-described measurement time difference information ⁇ t and the like.
- the control unit 11 is realized by a program execution process by a CPU (Central Processing Unit) included in the battery module 10 or a dedicated circuit.
- a CPU Central Processing Unit
- the storage unit 13 stores a program that is read and executed by the CPU.
- the relay machine 20 includes a control unit 21, a communication unit 22, and a storage unit 23.
- the control unit 21 controls the entire repeater 20, and includes a transmission / reception unit 211, a storage battery control unit 212, a battery information processing unit 213, and a measurement time difference detection unit 214.
- the transmission / reception unit 211 controls transmission / reception of information between the battery system control device 30 and each battery module 10 (“1”, “2”,..., “M”) via the communication unit 22.
- the storage battery control unit 212 transmits a control signal related to charging / discharging of the storage battery 7 received from the battery system control device 30 to each battery module 10 connected to the relay device 20.
- the battery information processing unit 213 receives instruction information (measurement instruction information) for requesting acquisition of the battery information 100 from the battery system control device 30.
- the battery information processing unit 213 transmits measurement instruction information to each battery module 10 connected to the relay device 20. Further, the battery information processing unit 213 totals the battery information 100 and the battery information acquisition time 150 received from each battery module 10 and stores them in the storage unit 23 as battery module total information 230. Then, the battery information processing unit 213 transmits the battery module total information 230 to the battery system control device 30.
- the battery information processing unit 213 delivers the battery information acquisition time 150 received from each battery module 10 to the measurement time difference detection unit 214.
- the measurement time difference detection unit 214 acquires the battery information acquisition time 150 from each of the battery modules 10 (“1”, “2”,..., “M”) via the battery information processing unit 213, the latest battery is detected. This is a time difference between the latest battery information acquisition time 150 detected and the battery information acquisition time 150 of another battery module 10 in order to detect the battery module 10 at the information acquisition time 150 and match the timing of the battery information acquisition time 150.
- Measurement time difference information ⁇ t ( ⁇ t 1 , ⁇ t 2 ,..., ⁇ t m ) is calculated for each battery module 10.
- each of the battery modules 10 ( “1”, “2”, ..., “m") the measurement time corresponding to the difference information ⁇ t ( ⁇ t 1, ⁇ t 2, ..., ⁇ t m) Is transmitted to each battery module 10.
- the measurement time difference detection unit 214 generates new measurement time difference information ⁇ t ( ⁇ t 1 , ⁇ t 2 , each time the relay device 20 receives the battery information 100 and the battery information acquisition time 150 from each battery module 10. ..., ⁇ t m ) may be generated and transmitted to each of the battery modules 10.
- the measurement time difference detection unit 214 stores the measurement time difference information ⁇ t ( ⁇ t 1 , ⁇ t 2 ,..., ⁇ t m ) in the storage unit 23 and sets a predetermined threshold for the change width of the measurement time difference information ⁇ t.
- each of the battery modules 10 has its new value.
- the measurement time difference information ⁇ t may be transmitted, and if the change width of the measurement time difference information ⁇ t is within a predetermined threshold, the measurement time difference information ⁇ t may not be transmitted to each battery module 10.
- the measurement time correction unit 115 on the battery module 10 side is provided with a predetermined threshold for the change width of the measurement time difference information ⁇ t, and the received new measurement time difference information ⁇ t exceeds the predetermined threshold
- the measurement time difference information ⁇ t stored in the storage unit 13 may be updated.
- the communication unit 22 includes a communication interface for transmitting and receiving information between each battery module 10 and the battery system control device 30.
- the storage unit 23 includes storage means such as a flash memory and a RAM, and stores the battery module total information 230 described above.
- the control unit 21 is realized by a program execution process by a CPU provided in the relay machine 20, a dedicated circuit, or the like.
- the storage unit 23 stores a program that is read and executed by the CPU.
- the battery system control device 30 includes a control unit 31, a communication unit 32, a storage unit 33, an input / output unit 34, and a display unit 35.
- the control unit 31 controls the battery system control device 30 as a whole, and includes a transmission / reception unit 311, a storage battery management unit 312, a battery information management unit 313, and a display processing unit 314.
- the transmission / reception unit 311 controls the transmission / reception of information with each repeater 20 via the communication unit 32.
- the storage battery management unit 312 performs charging / discharging of the storage battery 7 included in each battery module 10 based on the battery pack total information 330 including the battery information 100 and the battery information acquisition time 150 described later stored in the storage unit 33.
- the control is determined and a control signal for the control is transmitted to the repeater 20.
- the battery information management unit 313 transmits instruction information (measurement instruction information) for requesting acquisition of the battery information 100 to each relay device 20 at predetermined intervals. Then, the battery information management unit 313 receives the battery module total information 230 from each of the relay devices 20 and totals the battery module total information 230 to generate the battery pack total information 330. Then, the battery information management unit 313 stores the battery pack total information 330 in the storage unit 33.
- the display processing unit 314 controls the display unit 35 to display the battery pack total information 330 including the battery information 100 and the battery information acquisition time 150 stored in the storage unit 33.
- the communication unit 32 is configured by a communication interface for transmitting and receiving information to and from each repeater 20.
- the storage unit 33 includes storage means such as a hard disk, a flash memory, and a RAM, and stores the battery pack aggregation information 330 and the like described above.
- the input / output unit 34 includes an input / output interface for exchanging information with an input device (not shown) such as a keyboard and a mouse, and an output device (not shown) such as a printer.
- the display unit 35 is configured by display means such as a display.
- the control unit 31 is realized by a program execution process by a CPU provided in the battery system control device 30, a dedicated circuit, or the like.
- the storage unit 33 stores a program that is read and executed by the CPU.
- FIG. 4 is a sequence diagram showing an overall flow of the battery information acquisition process performed by the battery control system 80 according to the present embodiment.
- FIG. 4 only one repeater 20 is shown and the other repeaters 20 are omitted, but each repeater 20 performs the same process as described below.
- the battery information management unit 313 of the battery system control device 30 transmits instruction information (measurement instruction information) for requesting acquisition of the battery information 100 to each relay device 20 (step S100).
- the battery information processing unit 213 of the relay device 20 that has received the measurement instruction information from the battery system control device 30 sends the measurement instruction information to each battery module 10 (“1”, “2”,..., “M”). Is transmitted (step S101).
- the battery information acquisition unit 114 of each battery module 10 that has received the measurement instruction information measures the temperature information, voltage, SOC, and the like of the storage battery 7 and acquires the battery information 100 (step S102). Then, the battery information acquisition unit 114 receives the battery information acquisition time 150 that is the time when the battery information 100 is acquired from the acquisition time measurement unit 113. Subsequently, the battery information acquisition unit 114 of each battery module 10 transmits the battery information 100 and the battery information acquisition time 150 to the relay device 20 (step S103).
- the battery information processing unit 213 of the relay machine 20 totals the battery information 100 and the battery information acquisition time 150 received from each battery module 10 to generate battery module total information 230 (step S104). It transmits to the battery system control apparatus 30. And the battery information management part 313 of the battery system control apparatus 30 totals the battery module total information 230 received from each relay machine 20, produces
- the measurement time difference detection unit 214 of the relay machine 20 detects the battery module 10 at the latest battery information acquisition time 150 based on the battery information acquisition time 150 acquired by the battery information processing unit 213, and the battery information acquisition time thereof.
- the measurement time difference information ⁇ t ( ⁇ t 1 , ⁇ t 2 ,..., ⁇ t m ), which is the time difference between the latest detected battery information acquisition time 150 and the battery information acquisition time 150 of the other battery module 10 to match the timing of 150. Is generated for each battery module 10 (step S106).
- the measurement time difference detection unit 214 of the relay machine 20 transmits the measurement time difference information ⁇ t 1 to the battery module 10 (“1”) (step S107), and the battery module 10 (“1”).
- the measurement time correction unit 115 stores the received measurement time difference information ⁇ t 1 in the storage unit 13 (step S108).
- the measurement time difference detection unit 214 of the relay device 20 transmits the measurement time difference information ⁇ t 2 to the battery module 10 (“2”) (step S109), and the battery module 10 (“2”).
- the measurement time correction unit 115 stores the received measurement time difference information ⁇ t 2 in the storage unit 13 (step S110).
- the measurement time difference detection unit 214 of the relay device 20 transmits the measurement time difference information ⁇ t m to the battery module 10 (“m”) (step S111), and the battery module 10 (“m”).
- the measurement time correction unit 115 of () stores the received measurement time difference information ⁇ t m in the storage unit 13 (step S112).
- Steps S100 to S112 are the above-described process for acquiring the battery information 100 in the initial state.
- the battery information management unit 313 of the battery system control device 30 transmits the next measurement instruction information to each relay device 20 after a predetermined interval from the transmission of the measurement instruction information in Step S100 (Step S200).
- the battery information processing unit 213 of the relay machine 20 that has received the measurement instruction information from the battery system control device 30 sends the measurement instruction information to each battery module 10 (“1”, “2”,..., “M”). Is transmitted (step S201).
- the battery information acquisition unit 114 of the battery module 10 (“1”) that has received the measurement instruction information delays the measurement start time by the measurement time difference information ⁇ t 1 based on the instruction from the measurement time correction unit 115, and battery information.
- 100 measurement is started, and battery information 100 is acquired (step S202).
- the battery information acquisition unit 114 of the battery module 10 (“2”) starts measuring the battery information 100 by delaying the measurement start time by the measurement time difference information ⁇ t 2 based on the instruction from the measurement time correction unit 115. Battery information 100 is acquired (step S203).
- the battery information acquisition unit 114 of the battery module 10 measures the battery information 100 by delaying the measurement start time by the measurement time difference information ⁇ t m based on the instruction from the measurement time correction unit 115.
- the battery information 100 is acquired (step S204).
- each battery module 10 receives the battery information acquisition time 150 which is the time which acquired the battery information 100 from each acquisition time measurement part 113, Battery information 100 and its battery information acquisition time 150 is transmitted to the repeater 20 (step S205).
- the battery information processing unit 213 of the relay machine 20 totals the battery information 100 and the battery information acquisition time 150 received from each battery module 10, and generates battery module total information 230 (step S206). It transmits to the battery system control apparatus 30. And the battery information management part 313 of the battery system control apparatus 30 totals the battery module total information 230 received from each relay machine 20, produces
- the measurement time difference detection unit 214 of the repeater 20 generates new measurement time difference information ⁇ t ( ⁇ t 1 , ⁇ t 2 ,..., ⁇ t m ) and transmits it to each battery module 10.
- the measurement time difference information ⁇ t in the storage unit 13 may be updated by the measurement time correction unit 115 of each battery module 10.
- the measurement time correction unit 115 on the battery module 10 side is provided with a predetermined threshold for the change width of the measurement time difference information ⁇ t, and the received new measurement time difference information ⁇ t has a predetermined threshold. When it exceeds, the measurement time difference information ⁇ t stored in the storage unit 13 may be updated.
- the measurement time difference detection unit 214 stores the measurement time difference information ⁇ t ( ⁇ t 1 , ⁇ t 2 ,..., ⁇ t m ) in the storage unit 23 and sets a predetermined threshold for the change width of the measurement time difference information ⁇ t.
- ⁇ t the measurement time difference information
- the measurement time difference information ⁇ t may be transmitted and updated.
- the measurement time correction unit 115 of each battery module 10 can be used even when the type and usage of the storage battery 7 are different.
- the battery information acquisition time 150 of the battery module 10 can be set to the same time. Therefore, according to the battery control system 80 and the battery control method according to the present embodiment, the charge / discharge control of the storage battery 7 can be more accurately performed even when the type and usage of the storage battery 7 are different. Become.
- Measurement time difference information ⁇ t ( ⁇ t 1 , ⁇ t 2 ,..., ⁇ t m ) that is a time difference between the latest detected battery information acquisition time 150 and the battery information acquisition time 150 of the other battery module 10.
- the calculation is performed for each battery module 10.
- the measurement time correction unit 115 of each battery module 10 sets the measurement start time as the measurement time difference information ⁇ t ( ⁇ t 1 , ⁇ t 2 ,..., ⁇ t m )
- the battery information acquisition time 150 of each battery module 10 is corrected to be the same time.
- the battery information acquisition unit 114 always measures the battery information 100 such as temperature information, voltage, and SOC (at high speed).
- the measurement time difference detection unit 214 of the relay device 20 according to the modification of the present embodiment is the earliest among the battery information acquisition times 150 acquired from each battery module 10 in the acquisition process of the battery information 100 in the initial state.
- the time difference between the earliest detected battery information acquisition time 150 and the battery information acquisition time 150 of the other battery module 10 Certain measurement time difference information ⁇ t ′ ( ⁇ t 1 ′, ⁇ t 2 ′,..., ⁇ t m ′) is calculated for each battery module 10. Then, using the measurement time difference information ⁇ t ′ received from the repeater 20, the measurement time correction unit 115 of each battery module 10 performs the measurement time difference information ⁇ t ′ ( ⁇ t 1 ′, ⁇ t 2 ′,..., ⁇ t m The battery information acquisition unit 114 corrects the battery information 100 measured before the time when the measurement instruction information is received by the amount of '). By doing in this way, the battery information 100 in which the battery information acquisition time 150 of each battery module 10 becomes the same time in accordance with the timing of the earliest battery information acquisition time 150 among the measured battery information 100, the battery information 100 Module 10 can obtain.
- Battery control system 100 Battery information 111, 211, 311 Transmission / reception part 112 Storage battery controller part 113 Acquisition time measurement part 114 Battery information acquisition part 115 Measurement time correction part 150 Battery information acquisition time 212 Storage battery control part 213 Battery information processing part 214 Measurement Time Difference Detection Unit 230 Battery Module Total Information 312 Storage Battery Management Unit 313 Battery Information Management Unit 314 Display Processing Unit 330 Battery Pack Total Information
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Abstract
Description
なお、本発明における同時刻とは、各電池モジュールが完全に同一の時刻に電池情報を取得する場合のほか、電池情報を取得する時刻の誤差(ばらつき)が、従来技術に比べてより少なくなる場合も含み、電池情報の取得のタイミングを一致させることを意味する。
まず、本発明を実施するための形態(以下、「本実施形態」という)に係る電池制御システム80が行う処理の概要について、図1および図2を参照して説明する。
図1は、本実施形態に係る電池制御システム80全体の構成を説明するための図である。
なお、図2(a)においては、電池モジュール10の1つのみを図示して説明するが、他の電池モジュール10においても以下に説明する同様の処理が行われる。また、図2(a)において、電池システム制御装置30の図示を省略している。
具体的には、中継機20は、各電池モジュール10(「1」,「2」,…,「m」)から電池情報100とその電池情報取得時刻150とを受信すると、最も遅い電池情報取得時刻150の電池モジュール10を検出し、その電池情報取得時刻150のタイミングに合わせるため、最も遅い電池情報取得時刻150と他の電池情報取得時刻150との時間差である計測時刻差分情報Δt(Δt1,Δt2,…,Δtm)を計算する。そして、中継機20は、それぞれの電池モジュール10(「1」,「2」,…,「m」)に対応した計測時刻差分情報Δt(Δt1,Δt2,…,Δtm)を、各電池モジュール10に送信する。
次に、本実施形態に係る電池制御システム80を構成する電池モジュール10、中継機20、および電池システム制御装置30の各構成について具体的に説明する。
図3は、本実施形態に係る電池制御システム80の電池モジュール10、中継機20、および電池システム制御装置30の各構成例を示す機能ブロック図である。
まず、本実施形態に係る電池モジュール10が備える構成について具体的に説明する。
電池モジュール10は、図3に示すように、制御部11と、通信部12と、記憶部13とを含んで構成される。
また、電池情報取得部114は、その電池情報100を取得した時刻である電池情報取得時刻150を、取得時刻計測部113から受け取り、電池情報100およびその電池情報取得時刻150を、通信部12を介して、中継機20に送信する。
次に、本実施形態に係る中継機20が備える構成について具体的に説明する。
中継機20は、図3に示すように、制御部21と、通信部22と、記憶部23とを含んで構成される。
また、電池情報処理部213は、各電池モジュール10から受信した、電池情報100およびその電池情報取得時刻150を集計し、電池モジュール集計情報230として記憶部23に記憶する。そして、電池情報処理部213は、その電池モジュール集計情報230を、電池システム制御装置30に送信する。
また、電池情報処理部213は、電池モジュール10それぞれから受信した電池情報取得時刻150を、計測時刻差分検出部214に引き渡す。
そして、計測時刻差分検出部214は、それぞれの電池モジュール10(「1」,「2」,…,「m」)に対応した計測時刻差分情報Δt(Δt1,Δt2,…,Δtm)を、各電池モジュール10に送信する。
また、計測時刻差分検出部214は、記憶部23に計測時刻差分情報Δt(Δt1,Δt2,…,Δtm)を記憶しておき、計測時刻差分情報Δtの変更幅に所定の閾値を設けることで、新たに生成した計測時刻差分情報Δtの値と、記憶した計測時刻差分情報Δtの値とを比較して、所定の閾値を超えたときに、電池モジュール10それぞれに、その新たな計測時刻差分情報Δtを送信するようにし、計測時刻差分情報Δtの変更幅が所定の閾値以内であれば、計測時刻差分情報Δtを各電池モジュール10に送信しないようにしてもよい。
さらに、電池モジュール10側の計測時刻補正部115に、計測時刻差分情報Δtの変更幅についての所定の閾値を設けておき、受信した新たな計測時刻差分情報Δtが、所定の閾値を超えたときに、記憶部13に記憶されている計測時刻差分情報Δtを更新するようにしてもよい。
次に、本実施形態に係る電池システム制御装置30が備える構成について具体的に説明する。
電池システム制御装置30は、図3に示すように、制御部31と、通信部32と、記憶部33と、入出力部34と、表示部35とを含んで構成される。
また、表示部35は、ディスプレイ等の表示手段により構成される。
次に、本実施形態に係る電池制御システム80が行う電池情報取得処理の全体の流れについて、具体的に説明する。
図4は、本実施形態に係る電池制御システム80が行う電池情報取得処理の全体の流れを示すシーケンス図である。なお、図4において、中継機20を1つのみ記載し、他の中継機20の記載を省略しているが、各中継機20は、以下に説明する処理と同様の処理を行う。
同様に、中継機20の計測時刻差分検出部214は、電池モジュール10(「2」)に対しては、計測時刻差分情報Δt2を送信し(ステップS109)、電池モジュール10(「2」)の計測時刻補正部115が、受信した計測時刻差分情報Δt2を記憶部13に記憶する(ステップS110)。
このように、中継機20の計測時刻差分検出部214は、電池モジュール10(「m」)に対しては、計測時刻差分情報Δtmを送信し(ステップS111)、電池モジュール10(「m」)の計測時刻補正部115が、受信した計測時刻差分情報Δtmを記憶部13に記憶する(ステップS112)。
なお、このステップS100~S112が、前記した初期状態の電池情報100の取得処理である。
また、計測時刻差分検出部214は、記憶部23に計測時刻差分情報Δt(Δt1,Δt2,…,Δtm)を記憶しておき、計測時刻差分情報Δtの変更幅に所定の閾値を設けることで、新たに生成した計測時刻差分情報Δtの値と、記憶した計測時刻差分情報Δtの値とを比較して、所定の閾値を超えたときに、電池モジュール10それぞれに、その新たな計測時刻差分情報Δtを送信し更新させるようにしてもよい。
次に、本実施形態に係る電池制御システム80および電池制御方法の変形例について説明する。
本実施形態の電池モジュール10の電池情報取得部114は、電池システム制御装置30から、中継機20を介して、電池情報100の取得を要求する指示情報(計測指示情報)を受信する度に、蓄電池7の電池情報100の計測を行うものとして説明した。そして、中継機20の計測時刻差分検出部214が、各電池モジュール10から取得した電池情報取得時刻150のうち、最も遅い電池情報取得時刻150の電池モジュール10を検出し、その電池情報取得時刻150のタイミングに合わせるため、検出した最も遅い電池情報取得時刻150と他の電池モジュール10の電池情報取得時刻150との時間差である計測時刻差分情報Δt(Δt1,Δt2,…,Δtm)を、各電池モジュール10毎に計算する。そして、中継機20から受信した計測時刻差分情報Δtを用いて、各電池モジュール10の計測時刻補正部115が、計測開始時刻をその計測時刻差分情報Δt(Δt1,Δt2,…,Δtm)分だけ遅らせることで、各電池モジュール10の電池情報取得時刻150が同時刻になるように補正するものである。
7 蓄電池
8 電池制御システム
10 電池モジュール
11,21,31 制御部
12,22,32 通信部
13,23,33 記憶部
20 中継機
30 電池システム制御装置
34 入出力部
35 表示部
40 電池パック
80 電池制御システム
100 電池情報
111,211,311 送受信部
112 蓄電池コントローラ部
113 取得時刻計測部
114 電池情報取得部
115 計測時刻補正部
150 電池情報取得時刻
212 蓄電池制御部
213 電池情報処理部
214 計測時刻差分検出部
230 電池モジュール集計情報
312 蓄電池管理部
313 電池情報管理部
314 表示処理部
330 電池パック集計情報
Claims (9)
- 蓄電池の少なくとも電圧を含む電池情報を取得する複数の電池モジュールと、前記複数の電池モジュールに通信回線を介して接続され、自身と接続される前記複数の電池モジュールを制御する複数の中継機と、を備える電池制御システムであって、
前記中継機は、
自身と接続する前記複数の電池モジュールそれぞれに、前記電池情報の取得を要求する計測指示情報を送信し、前記複数の電池モジュールそれぞれから、当該電池情報および当該電池情報を取得した時刻である電池情報取得時刻を受信する電池情報処理部と、
前記受信した電池情報取得時刻のうち、基準となる任意の電池情報取得時刻の前記電池モジュールを検出し、前記検出した電池モジュールの前記任意の電池情報取得時刻と、他の前記電池モジュールの電池情報取得時刻との時間差である計測時刻差分情報(Δt)を、前記電池モジュールそれぞれについて計算し、前記計算した計測時刻差分情報(Δt)を前記電池モジュールそれぞれに送信する計測時刻差分検出部と、を備え、
前記電池モジュールは、
前記蓄電池の前記電池情報取得時刻を計測する取得時刻計測部と、
前記中継機から前記計測指示情報を受信すると、前記蓄電池の前記電池情報を計測して取得し、前記取得時刻計測部から当該電池情報の前記電池情報取得時刻を取得して、前記電池情報およびその前記電池情報取得時刻を前記中継機に送信する電池情報取得部と、
前記中継機から前記計測時刻差分情報(Δt)を受信して記憶部に記憶し、前記電池情報取得部が前記計測指示情報を受信したときに、前記電池情報の計測開始を前記記憶部に記憶した前記計測時刻差分情報(Δt)の分だけ補正して計測を開始させる計測時刻補正部と、を備えること
を特徴とする電池制御システム。 - 蓄電池の少なくとも電圧を含む電池情報を取得する複数の電池モジュールと、前記複数の電池モジュールに通信回線を介して接続され、自身と接続される前記複数の電池モジュールを制御する複数の中継機と、を備える電池制御システムであって、
前記中継機は、
自身と接続する前記複数の電池モジュールそれぞれに、前記電池情報の取得を要求する計測指示情報を送信し、前記複数の電池モジュールそれぞれから、当該電池情報および当該電池情報を取得した時刻である電池情報取得時刻を受信する電池情報処理部と、
前記受信した電池情報取得時刻のうち、最も遅い電池情報取得時刻の前記電池モジュールを検出し、前記検出した電池モジュールの前記最も遅い電池情報取得時刻と、他の前記電池モジュールの電池情報取得時刻との時間差である計測時刻差分情報(Δt)を、前記電池モジュールそれぞれについて計算し、前記計算した計測時刻差分情報(Δt)を前記電池モジュールそれぞれに送信する計測時刻差分検出部と、を備え、
前記電池モジュールは、
前記蓄電池の前記電池情報取得時刻を計測する取得時刻計測部と、
前記中継機から前記計測指示情報を受信すると、前記蓄電池の前記電池情報を計測して取得し、前記取得時刻計測部から当該電池情報の前記電池情報取得時刻を取得して、前記電池情報およびその前記電池情報取得時刻を前記中継機に送信する電池情報取得部と、
前記中継機から前記計測時刻差分情報(Δt)を受信して記憶部に記憶し、前記電池情報取得部が前記計測指示情報を受信したときに、前記電池情報の計測開始を前記記憶部に記憶した前記計測時刻差分情報(Δt)の分だけ遅らせて計測を開始させる計測時刻補正部と、を備えること
を特徴とする電池制御システム。 - 前記中継機は、
前記計測時刻差分検出部が計算した前記電池モジュール毎の前記計測時刻差分情報(Δt)が記憶される記憶部を備え、
前記計測時刻差分検出部が、前記電池情報処理部による新たな前記計測指示情報に対する応答として前記電池モジュールそれぞれから送信された新たな前記電池情報取得時刻について、新たな前記計測時刻差分情報(Δt)を計算し、前記新たな計測時刻差分情報(Δt)と、自身の前記記憶部に記憶された計測時刻差分情報(Δt)とを比較して、その時間差が所定の閾値を超えた場合に、当該新たな計測時刻差分情報(Δt)を、前記電池モジュールそれぞれに送信し、
前記電池モジュールの計測時刻補正部は、
前記新たな計測時刻差分情報(Δt)を用いて、自身の前記記憶部に記憶した計測時刻差分情報(Δt)を更新すること
を特徴とする請求項2に記載の電池制御システム。 - 前記中継機の計測時刻差分検出部は、
前記電池情報処理部による新たな前記計測指示情報に対する応答として前記電池モジュールそれぞれから送信された新たな前記電池情報取得時刻について、新たな前記計測時刻差分情報(Δt)を計算し、前記計算した新たな計測時刻差分情報(Δt)を、前記電池モジュールそれぞれに送信し、
前記電池モジュールの計測時刻補正部は、
受信した前記新たな計測時刻差分情報(Δt)と、自身の前記記憶部に記憶した計測時刻差分情報(Δt)とを比較して、その時間差が所定の閾値を超えた場合に、前記新たな計測時刻差分情報(Δt)を用いて、自身の前記記憶部に記憶した計測時刻差分情報(Δt)を更新すること
を特徴とする請求項2に記載の電池制御システム。 - 前記電池制御システムは、さらに、前記複数の中継機に通信回線を介して接続され、自身と接続される前記複数の中継機を制御する電池システム制御装置を備えており、
前記中継機の電池情報処理部は、
前記複数の電池モジュールそれぞれから受信した、前記電池情報およびその前記電池情報取得時刻を、前記電池システム制御装置に送信し、
前記電池システム制御装置は、
前記複数の中継機それぞれから受信した前記電池情報およびその前記電池情報取得時刻を集計する電池情報管理部と、
前記集計した前記電池情報およびその前記電池情報取得時刻を表示部に表示させる表示処理部と、を備えること
を特徴とする請求項2ないし請求項4のいずれか1項に記載の電池制御システム。 - 蓄電池の少なくとも電圧を含む電池情報を取得する複数の電池モジュールと、前記複数の電池モジュールに通信回線を介して接続され、自身と接続される前記複数の電池モジュールを制御する複数の中継機と、を備える電池制御システムであって、
前記中継機は、
自身と接続する前記複数の電池モジュールそれぞれに、前記電池情報の取得を要求する計測指示情報を送信し、前記複数の電池モジュールそれぞれから、当該電池情報および当該電池情報を取得した時刻である電池情報取得時刻を受信する電池情報処理部と、
前記受信した電池情報取得時刻のうち、最も早い電池情報取得時刻の前記電池モジュールを検出し、前記検出した電池モジュールの前記最も早い電池情報取得時刻と、他の前記電池モジュールの電池情報取得時刻との時間差である計測時刻差分情報(Δt')を、前記電池モジュールそれぞれについて計算し、前記計算した計測時刻差分情報(Δt')を前記電池モジュールそれぞれに送信する計測時刻差分検出部と、を備え、
前記電池モジュールは、
前記蓄電池の前記電池情報取得時刻を計測する取得時刻計測部と、
前記蓄電池の前記電池情報を常時計測して取得し、前記中継機から前記計測指示情報を受信すると、前記計測した電池情報と、前記取得時刻計測部から取得した当該電池情報の前記電池情報取得時刻とを前記中継機に送信する電池情報取得部と、
前記中継機から前記計測時刻差分情報(Δt')を受信して記憶部に記憶し、前記電池情報取得部が前記計測指示情報を受信したときに、その受信した時刻から前記記憶部に記憶した前記計測時刻差分情報(Δt')の分だけ前に計測された前記電池情報取得時刻の前記電気情報を前記電池情報取得部が取得するように補正する計測時刻補正部と、を備えること
を特徴とする電池制御システム。 - 蓄電池の少なくとも電圧を含む電池情報を取得する複数の電池モジュールと、前記複数の電池モジュールに通信回線を介して接続され、自身と接続される前記複数の電池モジュールを制御する複数の中継機と、を備える電池制御システムの電池制御方法であって、
前記中継機は、
自身と接続する前記複数の電池モジュールそれぞれに、前記電池情報の取得を要求する計測指示情報を送信するステップと、
前記複数の電池モジュールそれぞれから、当該電池情報および当該電池情報を取得した時刻である電池情報取得時刻を受信するステップと、
前記受信した電池情報取得時刻のうち、基準となる任意の電池情報取得時刻の前記電池モジュールを検出し、前記検出した電池モジュールの前記任意の電池情報取得時刻と、他の前記電池モジュールの電池情報取得時刻との時間差である計測時刻差分情報(Δt)を、前記電池モジュールそれぞれについて計算し、前記計算した計測時刻差分情報(Δt)を前記電池モジュールそれぞれに送信するステップと、を実行し、
前記電池モジュールは、
前記蓄電池の前記電池情報取得時刻を計測するステップと、
前記中継機から前記計測指示情報を受信すると、前記蓄電池の前記電池情報を計測して取得し、当該電池情報の前記電池情報取得時刻を取得して、前記電池情報およびその前記電池情報取得時刻を前記中継機に送信するステップと、
前記中継機から前記計測時刻差分情報(Δt)を受信して記憶部に記憶し、前記中継機から前記計測指示情報を受信したときに、前記電池情報の計測開始を前記記憶部に記憶した前記計測時刻差分情報(Δt)の分だけ補正して計測を開始させるステップと、を実行すること
を特徴とする電池制御方法。 - 蓄電池の少なくとも電圧を含む電池情報を取得する複数の電池モジュールと、前記複数の電池モジュールに通信回線を介して接続され、自身と接続される前記複数の電池モジュールを制御する複数の中継機と、を備える電池制御システムの電池制御方法であって、
前記中継機は、
自身と接続する前記複数の電池モジュールそれぞれに、前記電池情報の取得を要求する計測指示情報を送信するステップと、
前記複数の電池モジュールそれぞれから、当該電池情報および当該電池情報を取得した時刻である電池情報取得時刻を受信するステップと、
前記受信した電池情報取得時刻のうち、最も遅い電池情報取得時刻の前記電池モジュールを検出し、前記検出した電池モジュールの前記最も遅い電池情報取得時刻と、他の前記電池モジュールの電池情報取得時刻との時間差である計測時刻差分情報(Δt)を、前記電池モジュールそれぞれについて計算し、前記計算した計測時刻差分情報(Δt)を前記電池モジュールそれぞれに送信するステップと、を実行し、
前記電池モジュールは、
前記蓄電池の前記電池情報取得時刻を計測するステップと、
前記中継機から前記計測指示情報を受信すると、前記蓄電池の前記電池情報を計測して取得し、当該電池情報の前記電池情報取得時刻を取得して、前記電池情報およびその前記電池情報取得時刻を前記中継機に送信するステップと、
前記中継機から前記計測時刻差分情報(Δt)を受信して記憶部に記憶し、前記中継機から前記計測指示情報を受信したときに、前記電池情報の計測開始を前記記憶部に記憶した前記計測時刻差分情報(Δt)の分だけ遅らせて計測を開始させるステップと、を実行すること
を特徴とする電池制御方法。 - 蓄電池の少なくとも電圧を含む電池情報を取得する複数の電池モジュールと、前記複数の電池モジュールに通信回線を介して接続され、自身と接続される前記複数の電池モジュールを制御する複数の中継機と、を備える電池制御システムの電池制御方法であって、
前記中継機は、
自身と接続する前記複数の電池モジュールそれぞれに、前記電池情報の取得を要求する計測指示情報を送信するステップと、
前記複数の電池モジュールそれぞれから、当該電池情報および当該電池情報を取得した時刻である電池情報取得時刻を受信するステップと、
前記受信した電池情報取得時刻のうち、最も早い電池情報取得時刻の前記電池モジュールを検出し、前記検出した電池モジュールの前記最も早い電池情報取得時刻と、他の前記電池モジュールの電池情報取得時刻との時間差である計測時刻差分情報(Δt')を、前記電池モジュールそれぞれについて計算し、前記計算した計測時刻差分情報(Δt')を前記電池モジュールそれぞれに送信するステップと、を実行し、
前記電池モジュールは、
前記蓄電池の前記電池情報取得時刻を計測するステップと、
前記蓄電池の前記電池情報を常時計測して取得し、前記中継機から前記計測指示情報を受信すると、前記計測した電池情報と、前記取得時刻計測部から取得した当該電池情報の前記電池情報取得時刻とを前記中継機に送信するステップと、
前記中継機から前記計測時刻差分情報(Δt')を受信して記憶部に記憶し、前記中継機から前記計測指示情報を受信したときに、その受信した時刻から前記記憶部に記憶した前記計測時刻差分情報(Δt')の分だけ前に計測された前記電池情報取得時刻の前記電気情報を、前記中継機に送信するように補正するステップと、を実行すること
を特徴とする電池制御方法。
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US13/817,740 US9784813B2 (en) | 2011-11-29 | 2011-11-29 | Battery control system and battery control method |
PL11870831T PL2787359T3 (pl) | 2011-11-29 | 2011-11-29 | Układ sterujący bateriami i sposób sterowania bateriami |
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WO2015145622A1 (ja) * | 2014-03-26 | 2015-10-01 | 株式会社日立製作所 | 通信装置、通信システム |
WO2020084817A1 (ja) * | 2018-10-26 | 2020-04-30 | 住友電気工業株式会社 | 電池監視システム及び物理量集約方法 |
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PL2787359T3 (pl) | 2017-05-31 |
JPWO2013080304A1 (ja) | 2015-04-27 |
JP5797668B2 (ja) | 2015-10-21 |
EP2787359A1 (en) | 2014-10-08 |
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