WO2024070662A1 - Battery condition evaluation device, battery condition evaluation method, and program - Google Patents

Battery condition evaluation device, battery condition evaluation method, and program Download PDF

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Publication number
WO2024070662A1
WO2024070662A1 PCT/JP2023/033200 JP2023033200W WO2024070662A1 WO 2024070662 A1 WO2024070662 A1 WO 2024070662A1 JP 2023033200 W JP2023033200 W JP 2023033200W WO 2024070662 A1 WO2024070662 A1 WO 2024070662A1
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WO
WIPO (PCT)
Prior art keywords
battery
evaluation
information
evaluation result
state
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PCT/JP2023/033200
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French (fr)
Japanese (ja)
Inventor
一司 浜谷
朋也 赤川
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本田技研工業株式会社
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Publication of WO2024070662A1 publication Critical patent/WO2024070662A1/en

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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]
    • G01R31/382—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]
    • G01R31/385—Arrangements for measuring battery or accumulator variables
    • 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
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Definitions

  • the present invention relates to a battery state evaluation device, a battery state evaluation method, and a program.
  • Battery sharing services are a service that allows removable batteries (secondary batteries) used in electric vehicles and the like to be rented, collected, or exchanged at dedicated battery stations.
  • secondary batteries for example, Patent Document 1 discloses a technology that estimates maximum capacity based on the deviation between actual charging conditions and standard charging conditions in order to evaluate battery performance with a high degree of accuracy.
  • the present invention was made in consideration of these circumstances, and one of its objectives is to provide a battery state evaluation device, a battery state evaluation method, and a program that can more accurately evaluate the residual value of a battery. This invention will ultimately contribute to energy efficiency.
  • a battery condition evaluation device is a battery condition evaluation device that evaluates the condition of a battery, and includes an acquisition unit that acquires first information regarding electrical characteristics of the battery and second information regarding external factors of deterioration of the battery, and an evaluation unit that outputs a comprehensive evaluation result regarding the condition of the battery based on a first evaluation result based on the first information acquired by the acquisition unit and a second evaluation result based on the second information.
  • the evaluation unit determines the evaluation result of the evaluation item with the lowest evaluation among the evaluation results for the evaluation items included in the first evaluation result and the second evaluation result as the overall evaluation result for the battery.
  • the acquisition unit acquires image data of the exterior of the battery as the second information, and the evaluation unit outputs the overall evaluation result based on the second evaluation result registered based on the image data and the first evaluation result evaluated based on the electrical characteristics of the battery.
  • the evaluation unit obtains a second evaluation result regarding the external factors based on a result of comparing a pre-stored reference image with the image data obtained by the acquisition unit, and outputs the overall evaluation result based on the second evaluation result and the first evaluation result evaluated based on the electrical characteristics of the battery.
  • a notification unit is further provided that notifies the user of the battery to request acquisition of the image data if the image data as the second information has not been acquired.
  • the evaluation unit corrects the evaluation result according to the supply situation of the battery in the market.
  • a battery condition evaluation method includes a battery condition evaluation device that evaluates the state of a battery, and the battery condition evaluation device acquires first information about the electrical characteristics of the battery and second information about external factors that cause deterioration of the battery, and outputs a comprehensive evaluation result about the state of the battery based on the acquired first information and second information.
  • a program causes a battery state evaluation device, which evaluates the state of a battery, to acquire first information on the electrical characteristics of the battery and second information on external factors that cause deterioration of the battery, and to output a comprehensive evaluation result on the state of the battery based on the acquired first information and second information.
  • FIG. 1 is a diagram illustrating an example of a configuration of a battery sharing system according to an embodiment of the present invention.
  • FIG. 2 is a diagram illustrating an example of the configuration of a removable battery.
  • FIG. 1 is a diagram illustrating an example of the configuration of an electric motorcycle.
  • FIG. 2 illustrates an example of a system configuration of a management device.
  • FIG. 11 is a diagram showing an example of a first evaluation item.
  • FIG. 11 is a diagram showing an example of a second evaluation item.
  • 10 is a flowchart showing an example of a process flow in which the evaluation device evaluates the state of a target battery.
  • FIG. 1 is a diagram showing an example of the configuration of a battery sharing system to which the battery state evaluation device of the present embodiment is applied.
  • the battery sharing system 1 is a system that lends batteries to users on the premise that the batteries are shared by multiple users.
  • a battery sharing service such a service for lending batteries is referred to as a "battery sharing service”.
  • FIG. 1 shows a configuration in which the battery sharing system 1 provides a battery sharing service to a user U.
  • the battery sharing system 1 includes, for example, a battery exchange station 300, an evaluation device 400, a terminal device (hereinafter referred to as a "user terminal device”) 500 of the user U, and a terminal device (hereinafter referred to as an "evaluator terminal device”) 600 of an evaluator V.
  • the battery exchange station 300, the evaluation device 400, the user terminal device 500, and the evaluator terminal device 600 can communicate with each other via a communication network NW.
  • FIG. 1 shows a configuration in which the battery sharing system 1 outputs an evaluation result of the battery 100 to the user terminal device 500 of the user U.
  • the battery 100 is a battery that is loaned to the user U by the battery exchange station 300.
  • the user U uses the battery 100 loaned from the battery exchange station 300 to drive, for example, an electric motorcycle 200.
  • the electric motorcycle 200 is an example of an electric device (hereinafter referred to as "purpose device") that the user U drives as the intended use of the battery 100.
  • the battery exchange station 300 loans a charged battery 100 to the user U and collects used batteries 100 from the user U.
  • the battery exchange station 300 can also charge the collected battery 100 to prepare for the next loan.
  • the battery exchange station 300 can also loan (i.e., exchange) a new charged battery 100 to the user U in exchange for the returned battery 100.
  • the evaluation device 400 evaluates the state of the battery 100. More specifically, the evaluation device 400 acquires characteristic information (first information) related to the electrical characteristics of the battery 100 and appearance information (second information) related to external factors of deterioration of the battery 100, and outputs a comprehensive evaluation result on the state of the battery 100 based on a first evaluation result based on the acquired characteristic information and a second evaluation result based on the appearance information.
  • the evaluation device 400 is an example of a "battery state evaluation device.”
  • an evaluator V is a person who performs an evaluation of the battery 100 based on the appearance information, and provides the evaluation result (second evaluation result) to the evaluation device 400 using the evaluator terminal device 600.
  • the communication network NW may be a transmission path for wired communication, a transmission path for wireless communication, or a combination of a transmission path for wireless communication and a transmission path for wired communication.
  • the communication network NW may include a wireless packet communication network, the Internet, a P2P network, a dedicated line, a Virtual Private Network (VPN), a power line communication line, a vehicle-to-vehicle communication line, a road-to-vehicle communication line, and the like.
  • VPN Virtual Private Network
  • the communication network NW may include (i) a mobile communication network such as a mobile phone line network, or (ii) a wireless communication network such as a wireless MAN (Metropolitan Area Network) (e.g., WiMAX (registered trademark)), a wireless LAN (e.g., Wi-Fi (registered trademark)), Bluetooth (registered trademark), Zigbee (registered trademark), or NFC (Near Field Communication).
  • a wireless MAN Micropolitan Area Network
  • WiMAX registered trademark
  • a wireless LAN e.g., Wi-Fi (registered trademark)
  • Bluetooth registered trademark
  • Zigbee registered trademark
  • NFC Near Field Communication
  • Battery 100 is a battery device that can be detachably mounted on an electrical device. Any electrical device can be equipped with battery 100 and can receive power from the attached battery 100. Hereinafter, such electrical devices may be referred to as "compatible devices" to mean electrical devices that are compatible with battery 100.
  • the evaluation device 400 is a device that obtains evaluation results for each of a number of evaluation items based on characteristic information and appearance information obtained about the battery 100 to be evaluated (hereinafter referred to as the "target battery 100"), and obtains and outputs an overall evaluation result for the target battery 100 based on the obtained multiple evaluation results.
  • the characteristic information here is information indicating the electrical characteristics of the target battery 100, and is acquired based on various state information (hereinafter referred to as "battery information") recorded in the target battery 100.
  • the battery information includes measurement data such as the voltage and current applied to the battery 100, temperature, and SOC.
  • the battery information is recorded in a memory unit inside the battery 100 by the battery 100 itself or a compatible device connected to the battery 100.
  • the battery exchange station 300 has a circuit or the like for reading and writing battery information from the battery 100, and reads out the battery information from the battery 100 accommodated in the station and provides it to the evaluation device 400.
  • the evaluation device 400 acquires characteristic information indicating the electrical characteristics of the target battery 100 based on the battery information supplied from the battery exchange station 300, and acquires an evaluation result (hereinafter referred to as the "first evaluation result") for each evaluation item related to the electrical characteristics of the target battery 100 based on the acquired characteristic information.
  • the characteristic information can be acquired by subjecting the target battery 100 to various statistical and analytical processes.
  • the evaluation device 400 can acquire an evaluation result for each evaluation item by comparing the acquired characteristic information with evaluation criteria previously defined for each evaluation item.
  • the appearance information is information related to the appearance of the target battery 100.
  • the appearance information is image data capturing an image of the appearance of the target battery 100.
  • the appearance information is acquired as image data by an imaging device such as a camera C, and is supplied to the evaluation device 400.
  • the supply of the appearance information may be achieved by communication between the camera C and the evaluation device 400, or may be achieved by connecting a storage medium on which image data is recorded by the camera C to the evaluation device 400.
  • the evaluation device 400 acquires a second evaluation result as an evaluation result based on the appearance information of the target battery 100.
  • the second evaluation result is registered in the evaluation device 400, for example, as a result of the evaluator V visually checking the image data acquired as the appearance information.
  • the appearance information may be information acquired or recognized by the evaluator V by visually checking the actual target battery 100 in addition to/instead of the image data acquired by the camera C. That is, the second evaluation result may be registered in the evaluation device 400, for example, as a result of the evaluator V visually checking the actual target battery 100.
  • the evaluation device 400 determines a final evaluation result for the target battery 100 by comprehensively evaluating the first evaluation result and the second evaluation result thus obtained, and outputs the final evaluation result to the user terminal device 500 of the user U.
  • the evaluator V and the user U may be different persons or may be the same person.
  • the external image of the target battery 100 may be captured by the evaluator V, the user U, or another person.
  • FIG. 2 is a diagram showing an example of the configuration of the battery 100.
  • the battery 100 includes, for example, a power storage unit 120, a BMU 130, and a connection unit 140.
  • the BMU 130 includes, for example, a measurement sensor 131 and a memory unit 132.
  • the power storage unit 120 is, for example, a battery pack in which a plurality of single cells are connected in series.
  • the single cells constituting the power storage unit 120 are, for example, secondary batteries that can be repeatedly charged and discharged, such as lithium-ion batteries (LIBs), nickel-metal hydride batteries, and all-solid-state batteries.
  • LIBs lithium-ion batteries
  • nickel-metal hydride batteries nickel-metal hydride batteries
  • all-solid-state batteries all-solid-state batteries.
  • the secondary batteries constituting the power storage unit 120 for example, in addition to lead-acid batteries and sodium-ion batteries, capacitors such as electric double-layer capacitors, or composite batteries combining secondary batteries and capacitors are also considered. There is no particular limitation on the configuration of the secondary batteries constituting the power storage unit 120.
  • the BMU 130 controls the charging and discharging of the power storage unit 120, performs cell balancing, detects abnormalities in the power storage unit 120, derives the cell temperature of the power storage unit 120, derives the charge and discharge current of the power storage unit 120, estimates the SOC of the power storage unit 120, and so on.
  • the BMU 130 stores the measurement results of the measurement sensor 131 and abnormalities and failures of the power storage unit 120 identified based on the measurement results in the memory unit 132 as battery state information.
  • the measurement sensor 131 is a voltage sensor, a current sensor, a temperature sensor, and so on for measuring the charging state of the power storage unit 120.
  • the measurement sensor 131 outputs the measurement results of the measured voltage, current, temperature, and so on to the BMU 130.
  • the battery 100 that is not electrically operating may be defined as a battery 100 for which a predetermined time or more has passed since the end of the previous operation. Any battery 100 other than the battery 100 defined in this way may be defined as an electrically operating battery 100.
  • the electrically operating state may be defined as, for example, a state in which the battery 100 is being charged or a state in which the battery 100 is being discharged.
  • the BUM 130 may record in the memory unit 132, as the measurement result of the measurement sensor 131, information associating the measurement value with the measurement time, or information associating the measurement value with the measurement frequency (a so-called histogram) in the memory unit 132.
  • the memory unit 132 includes a non-volatile storage device, such as a hard disk drive (HDD), a solid state drive (SSD), or a flash memory.
  • the memory unit 132 stores the battery status information described above.
  • the memory unit 132 may also store identification information (battery ID) assigned to the battery 100.
  • FIG. 3 is a diagram showing an example of the configuration of an electric motorcycle 200 as an example of a compatible device.
  • the electric motorcycle 200 shown in FIG. 3 is shown as an example of a compatible device, and the compatible device is not limited to an electric motorcycle.
  • the compatible device may be any electric device that is compatible with the battery 100.
  • the electric motorcycle 200 runs with the driving force of an electric motor driven by power supplied from the battery 100.
  • the electric motorcycle 200 may be a hybrid electric vehicle that runs with the driving force of a combination of the battery 100 and an internal combustion engine such as a diesel engine or a gasoline engine.
  • the electric motorcycle 200 includes, for example, a battery connection unit 210, a vehicle control unit 220, a driving force output device 230, a vehicle sensor 18, an HMI (Human Machine Interface) 20, and a GNSS (Global Navigation Satellite System) receiver 22.
  • a battery connection unit 210 for example, a battery connection unit 210, a vehicle control unit 220, a driving force output device 230, a vehicle sensor 18, an HMI (Human Machine Interface) 20, and a GNSS (Global Navigation Satellite System) receiver 22.
  • HMI Human Machine Interface
  • GNSS Global Navigation Satellite System
  • the battery connection unit 210 is electrically connected to the battery 100 when the battery 100 is attached to the electric motorcycle 200.
  • the battery connection unit 210 includes a connection terminal for a power line that receives power from the battery 100, and a connection terminal for a communication line that communicates data between the battery 100 and the vehicle control unit 220.
  • the vehicle control unit 220 acquires measurement results from the vehicle sensors 18, acquires various information (e.g., SOC, DOD, etc.) related to the power storage unit 120 from the BMU (Battery Management Unit) 110 provided in the battery 100, and acquires the position of the electric motorcycle 200 from the GNSS receiver 22.
  • the vehicle control unit 220 controls the driving force output device 230 based on the acquired data.
  • the vehicle control unit 220 may transmit the position information of the electric motorcycle 200 acquired from the GNSS receiver 22 to the battery 100 via the battery connection unit 210.
  • the vehicle control unit 220 also has the function of acquiring information (hereinafter referred to as "restriction information") relating to usage restrictions of the battery 100 mounted on the electric motorcycle 200 from the battery 100, and restricting the use of the battery 100 based on the restriction information.
  • restriction information information relating to usage restrictions of the battery 100 mounted on the electric motorcycle 200 from the battery 100. The usage restrictions of the battery 100 will be described later.
  • the driving force output device 230 includes, for example, an electric motor, an inverter, and an ECU (Electronic Control Unit) that controls the inverter.
  • the ECU controls the power supplied from the battery 100 to the electric motor, for example by controlling the inverter.
  • the vehicle sensor 18 includes a speed sensor, an acceleration sensor, a rotational speed sensor, an odometer, and various other sensors mounted on the electric motorcycle 200. The vehicle sensor 18 outputs the measurement results to the vehicle control unit 220.
  • the HMI 20 outputs various information to the user of the electric motorcycle 200 and accepts input operations by the user.
  • the HMI 20 includes various display devices (which may be a touch panel) such as a HUD (Head Up Display) and a meter display unit, as well as a speaker.
  • the GNSS receiver 22 locates the position of the electric motorcycle 200 based on radio waves received from a GNSS satellite (such as a GPS (Global Positioning System) satellite).
  • FIG. 4 is a diagram showing an example of a system configuration of the evaluation device 400.
  • the evaluation device 400 includes, for example, a storage unit 410, a communication unit 420, a display unit 440, an information acquisition unit 450, an evaluation unit 460, and a notification unit 470.
  • These components are realized by, for example, a hardware processor such as a CPU (Central Processing Unit) executing a program (software).
  • a hardware processor such as a CPU (Central Processing Unit) executing a program (software).
  • Some or all of these components may be realized by hardware (including circuitry) such as an LSI (Large Scale Integration), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a GPU (Graphics Processing Unit), or may be realized by cooperation between software and hardware.
  • LSI Large Scale Integration
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array
  • GPU Graphics Processing Unit
  • the program may be stored in advance in a storage device such as an HDD, SSD, or flash memory (a storage device having a non-transient storage medium), or may be stored in a removable storage medium such as a DVD or CD-ROM (a non-transient storage medium), and may be installed by mounting the storage medium in a drive device.
  • a storage device such as an HDD, SSD, or flash memory (a storage device having a non-transient storage medium)
  • a removable storage medium such as a DVD or CD-ROM (a non-transient storage medium)
  • the storage unit 410 includes, for example, a non-volatile storage device such as an HDD, SSD, or flash memory.
  • the storage unit 410 is used as a storage area for various information related to the operation of the evaluation device 400.
  • the storage unit 410 stores, for example, the above-mentioned characteristic information 411, appearance information 412, first evaluation information 413, second evaluation information 414, and evaluation criteria information 415.
  • the communication unit 420 is a communication interface that connects the evaluation device 400 to the communication network NW.
  • the communication unit 420 can communicate with the battery exchange station 300, the user terminal device 500, and the evaluator terminal device 600 via the communication network NW.
  • the display unit 440 is configured using a display device such as a CRT (Cathode Ray Tube) display, a liquid crystal display, or an organic EL (Electro-Luminescence) display. Any information may be displayed on the display unit 440.
  • a display device such as a CRT (Cathode Ray Tube) display, a liquid crystal display, or an organic EL (Electro-Luminescence) display. Any information may be displayed on the display unit 440.
  • the information acquisition unit 450 acquires battery information of the target battery 100 from the battery exchange station 300 via the communication unit 420, and generates characteristic information 411 based on the acquired battery information and stores it in the memory unit 410. As described above, the information acquisition unit 450 generates characteristic information 411 by performing various statistical and analytical processes on the battery information.
  • the characteristic information 411 may be any information that enables evaluation of evaluation items based on electrical characteristics (hereinafter referred to as "first evaluation items") for the target battery 100.
  • the evaluation unit 460 evaluates the first evaluation item based on the characteristic information 411 and stores the evaluation result in the storage unit 410 as first evaluation information 413. More specifically, the evaluation unit 460 evaluates the first evaluation item by comparing the characteristic information 411 with evaluation criteria information 415 that indicates the evaluation criteria for the first evaluation item. Furthermore, the evaluation unit 460 performs a comprehensive evaluation of the first evaluation information 413 and the second evaluation information 414 to determine a final evaluation result for the target battery 100 and transmits it to the user terminal device 500.
  • transmitting the final evaluation result to the user terminal device 500 is an example of outputting the final evaluation result.
  • the output mode of the final evaluation result may be transmission to the user terminal device 500, display by the display unit 440, or recording in the memory unit 410.
  • the output mode of the final evaluation result may be the output of a sound indicating the evaluation result, or other types of information output.
  • the notification unit 470 transmits a notification for the user U to the user terminal device 500.
  • the notification unit 470 transmits a notification to the user U requesting the provision of appearance information about the target battery 100.
  • this notification may be sent when the user U supplies a used battery 100 to the battery sharing system 1 as an evaluation target, and the evaluation device 400 detects that appearance information about the battery 100 has not been acquired.
  • the user terminal device 500 has a camera function, the user U may capture an image of the appearance of the target battery 100 with the user terminal device 500 and transmit the image data to the evaluation device 400.
  • the notification unit 470 may cause the user terminal device 500 to display information to assist the user in the image capture operation so that image data necessary for the state evaluation is acquired. For example, a guide display may be displayed so that an image is captured with a specific part of the target battery 100 displayed at a specific position on the screen.
  • FIG. 5 is a diagram showing an example of the first evaluation item.
  • FIG. 5 shows examples of the first evaluation items, including evaluation items related to (1) whether charging and discharging is possible, (2) damage history, (3) presence or absence of charging and discharging history, (4) deterioration curve distribution, and (5) SOH at time of collection.
  • evaluation items related to (1) whether charging and discharging is possible (2) damage history, (3) presence or absence of charging and discharging history, (4) deterioration curve distribution, and (5) SOH at time of collection.
  • a correspondence between an evaluation criterion value and an evaluation value is defined for the electrical characteristics of the battery 100 that can be recognized based on the characteristic information.
  • the example of FIG. 5 shows the evaluation value of each evaluation item in five levels, A to E, in order from the highest evaluation.
  • the evaluation device 400 stores evaluation criterion information 415 indicating such evaluation criteria in advance in the storage unit 410, and can obtain an evaluation result (first evaluation result) for the first evaluation item by comparing the characteristic information 411 with the evaluation criterion information 415.
  • the evaluation item of "possibility of charging/discharging” evaluates the deterioration state of the target battery 100 based on whether the battery 100 can be charged/discharged.
  • Fig. 5 shows an example of a two-stage evaluation in which the evaluation value of the battery being chargeable/dischargeable is the highest evaluation of "A" and the evaluation value of the battery not being chargeable/dischargeable is the lowest evaluation of "E.”
  • the evaluation item of "damage history” evaluates the deterioration state of the target battery 100 based on the presence or absence of a damage history in the battery 100.
  • the presence or absence of a damage history can be determined based on whether or not an error code indicating the occurrence of damage is included in the battery information.
  • FIG. 5 shows an example of a two-stage evaluation in which the evaluation value when there is "no damage history" is the highest evaluation of "A” and the evaluation value when there is "yes” to the damage history is the lowest evaluation of "E.”
  • charge/discharge history is an evaluation item based on the presence or absence of a charge/discharge history in the battery 100.
  • the presence or absence of a charge/discharge history can be determined by referring to time-series data of current values and voltage values included in the battery information.
  • the example of Fig. 5 evaluates the deterioration state of the target battery 100 based on whether or not there is a charge/discharge history in which the amount of SOC change during charging/discharging is equal to or greater than X1% of the maximum value.
  • the "deterioration curve distribution” is an evaluation item based on the distribution of the degree of deterioration of the target battery 100.
  • the deterioration curve is a curve showing the transition of the degree of deterioration of the target battery 100, and can be recognized by time series data of various measured values included in the battery information.
  • the evaluation unit 460 recognizes the deterioration curve of the target battery 100 and determines the percentage of the batteries 100 having the same degree of deterioration as the deterioration curve of the target battery 100 in the total distribution.
  • the evaluation unit 460 can recognize the distribution status of the target battery 100 by matching the deterioration curve of the target battery 100 with the distribution information.
  • the example of FIG. 5 evaluates the deterioration state of the target battery 100 depending on which distribution the deterioration curve of the target battery 100 falls into among "top Y1%", “middle Y2%", and "bottom Y3%".
  • the distribution information may be obtained for batteries 100 that have been accepted by the battery sharing system 1 and are the subject of evaluation, or may be obtained for batteries 100 of the same type that have been released onto the market.
  • SOH at time of collection is an evaluation item based on the value of the SOH (States of Health) when the target battery 100 is collected by the battery sharing system 1.
  • SOH States of Health
  • the example of Figure 5 evaluates the degree of deterioration depending on whether the SOH value falls into one of the following categories: "Z1% or more,” “Z2% or more but less than Z1%,” “Z3% or more but less than Z2%,” “Z4% or more but less than Z3%,” or "Less than Z4%.”
  • FIG. 5 shows an example of determining the evaluation value by a combination of these three evaluation items.
  • the evaluation value is the highest evaluation of "A" when the "charge/discharge history" is X1% or more, the “deterioration curve distribution” is in the top Y1%, and the "SOH at time of collection” is Z1% or more.
  • the evaluation of the degraded state of the battery 100 may be performed by determining an evaluation value for each individual evaluation item, or may be performed for a combination of multiple evaluation items.
  • FIG. 6 is a diagram showing an example of the second evaluation item.
  • the second evaluation item is an evaluation item of the degree of deterioration based on the appearance information of the battery 100.
  • FIG. 6 shows an example in which the evaluation value is set to the highest evaluation of "A" when it is determined that there is no damage to at least the casing and the connection part 140 of the target battery 100, the evaluation value is set to a medium evaluation of "C" when it is determined that there is no damage to the target battery 100 that affects at least the functionality, and the evaluation value is set to the lowest evaluation of "E” when it is determined that there is damage to the target battery 100 that affects the functionality.
  • the evaluation unit 460 comprehensively evaluates the evaluation results of multiple evaluation items based on the appearance information and characteristic information as exemplified in Figures 5 and 6 regarding the deterioration state of the target battery 100, and determines and outputs the final evaluation result.
  • [6. Battery Degradation State Evaluation] 7 is a flowchart showing an example of a process flow in which the evaluation device 400 evaluates the state of the target battery 100.
  • the information acquisition unit 450 acquires battery information of the target battery 100 from the battery exchange station 300, generates characteristic information 411 based on the acquired battery information, and stores it in the storage unit 410 (step S101).
  • the target battery 100 is assumed to be specified in the evaluation device 400 by, for example, a user U via a user terminal device 500.
  • the information acquisition unit 450 acquires the appearance information 412 of the target battery 100 and stores it in the storage unit 410 (step S102). For example, the information acquisition unit 450 acquires image data of the appearance of the target battery 100 from the camera C, and manages it as the appearance information 412 in association with the identification information of the target battery 100.
  • the evaluation unit 460 evaluates the target battery 100 for a first evaluation item based on electrical characteristics, based on the characteristic information 411 acquired in step S101, and stores the evaluation result in the memory unit 410 as first evaluation information 413 (step S103).
  • the evaluation unit 460 determines whether the state of the target battery 100 corresponds to one of the candidate values assumed for each evaluation item based on the electrical characteristics, and determines the evaluation value according to the corresponding candidate value or a combination of the candidate values.
  • the appearance information 412 acquired in step S102 is referenced by the evaluator V via the evaluator terminal device 600.
  • the evaluator V references the image data of the target battery 100 managed as the appearance information 412, performs an evaluation of the second evaluation item based on the appearance information of the target battery 100, and registers the evaluation result in the evaluation device 400 (step S104).
  • the information acquisition unit 450 acquires the evaluation result of the second evaluation item from the evaluator terminal device 600 and stores it in the storage unit 410 as second evaluation information 414.
  • evaluator V determines which of the possible candidate values corresponds to the state of the target battery 100 for an evaluation item based on deterioration factors that can be recognized from the appearance of the battery 100, and determines the evaluation value according to the corresponding candidate value.
  • the evaluation unit 460 determines an overall evaluation result for the state of the target battery 100 based on the first evaluation information 413 acquired in step S103 and the second evaluation information 414 acquired in step S104 (step S105).
  • the evaluation unit 460 transmits the overall evaluation result determined for the state of the target battery 100 to the user terminal device 500 of the user U (step S106).
  • the evaluation unit 460 determines the evaluation result of the evaluation item with the lowest evaluation among the evaluation results for the evaluation items included in the first evaluation result and the second evaluation result as the overall evaluation result for the target battery 100. For example, in the example of FIG. 5, if (1) "Whether or not charging/discharging is possible” is evaluated as “A”, (2) “Damage history” is evaluated as “E”, and the combination of (3) “Charge/discharge history”, (4) "Deterioration curve distribution", and (5) "SOH at time of collection” is evaluated as "C", the evaluation unit 460 determines the lowest evaluation "E” as the overall evaluation of the target battery 100.
  • the evaluation unit 460 may be configured to correct the evaluation result of the target battery 100 according to the supply situation of the battery 100 in the market. For example, if the evaluation unit 460 determines that the battery 100 is in oversupply in the market, the evaluation unit 460 may correct the evaluation result to a more severe direction. In this case, if the overall evaluation result before the correction is a "D" rating, the evaluation unit 460 may correct it to an "E" rating. The evaluation unit 460 may also make a similar correction to the first evaluation result or the second evaluation result before the overall evaluation is performed. In this case, the information indicating the supply situation of the battery 100 in the market may be stored in the storage unit 410 in advance, or may be obtained and updated from an external device when the evaluation of the target battery 100 is performed or at any time.
  • the evaluation device 400 in evaluating the battery 100, obtains a second evaluation result based on degradation factors that can be recognized from the external appearance of the battery 100 in addition to a first evaluation result based on the electrical characteristics, and outputs the result of a comprehensive evaluation of these as the final evaluation result of the target battery 100, so that the residual value of the battery 100 can be evaluated more accurately.
  • the evaluator V uses the evaluator terminal device 600 to evaluate the second evaluation item and register the evaluation result in the evaluation device 400.
  • the evaluation of the second evaluation item may be performed mechanically by the evaluation device 400.
  • the evaluation unit 460 may be configured to compare a reference image previously stored for the target battery 100 with image data acquired as the appearance information 412, and acquire the second evaluation result based on the comparison result. For example, in the case of the example of FIG.
  • image data of the battery 100 in each state (a state in which the case and connector are not damaged, a state in which there is no damage affecting the function, and a state in which there is damage affecting the function) having an appearance corresponding to each candidate value may be acquired as a reference image, and the image data obtained by capturing the appearance of the target battery 100 may be compared with each reference image to calculate the similarity with each reference image, and the candidate value corresponding to the reference image with the highest similarity may be adopted.
  • the evaluation unit 460 may be configured to learn the relationship between image data capturing the exterior of the battery 100 and each candidate value through machine learning, and to determine which candidate value the state of the target battery 100 corresponds to using a trained model such as a neural network obtained as a result of the learning.
  • the target battery 100 is a battery 100 used in a battery sharing service. This is because it is convenient to perform various evaluations regarding the degree of deterioration if the batteries 100 to be evaluated have a certain degree of commonality. For example, if there are many types of batteries 100 to be evaluated, the number of types of information required for the evaluation (e.g., reference images, evaluation reference information, etc.) also increases, making it cumbersome. However, the battery 100 to be evaluated does not necessarily have to be of one type. If it is possible to recognize the type of the target battery 100 and the information required for the evaluation is acquired and managed for each type, multiple types of batteries 100 may be evaluated.
  • the battery exchange station 300 may be equipped with a camera.
  • the battery exchange station 300 may be configured to capture an image of the external appearance of the returned battery 100 and transmit the image data to the evaluation device 400.
  • the output destination of the overall evaluation result may be the evaluator terminal device 600 of the evaluator V, the display unit of the battery exchange station 300, or the display unit of the evaluation device 400.
  • the user U and the evaluator V have been described as different people, but the user U and the evaluator V may be the same person.
  • the evaluation device 400 may be configured to further include an incentive granting unit that, when the notification unit 470 requests the user U to image the target battery 100, grants a predetermined incentive to the user U who images the target battery 100 in response to the request and provides the image data.
  • the incentive granting unit may grant points that can be used in the battery sharing service to the user U as an incentive.
  • the incentive granting unit may grant a privilege of discounting the usage fee for the battery sharing service to the user U as an incentive.
  • a battery state evaluation device for evaluating a state of a battery, one or more storage media storing computer-readable instructions; one or more processors coupled to the one or more storage media; The one or more processors execute the computer readable instructions to obtaining first information on an electrical characteristic of the battery and second information on an external cause of deterioration of the battery; outputting a comprehensive evaluation result regarding the state of the battery based on a first evaluation result based on the first information acquired by the acquisition unit and a second evaluation result based on the second information; Battery condition assessment device.
  • 1...battery sharing system 100...detachable battery, 120...power storage unit, 130...BMU, 131...measurement sensor, 132...storage unit, 140...connection unit, 200...electric bike, 18...vehicle sensor, 20...HMI, 22...GNSS receiver, 210...battery connection unit, 220...vehicle control unit, 230...driving force output device, 300...battery exchange station, 400...evaluation device, 410...storage unit, 411...characteristic information, 412...appearance information, 413...first evaluation information, 414...second evaluation information, 415...evaluation criteria information, 420...communication unit, 440...display unit, 450...information acquisition unit, 460...evaluation unit, 470...notification unit, 500...user terminal device, 600...evaluator terminal device

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Abstract

A battery condition evaluation device that evaluates a battery condition comprises: an acquisition unit that acquires first information regarding electrical characteristics of the battery and second information regarding external causes of deterioration of the battery; and an evaluation unit that outputs a comprehensive evaluation result regarding the condition of the battery on the basis of a first evaluation result based on the first information acquired by the acquisition unit and a second evaluation result based on the second information.

Description

バッテリ状態評価装置、バッテリ状態評価方法、およびプログラムBattery state evaluation device, battery state evaluation method, and program
　本発明は、バッテリ状態評価装置、バッテリ状態評価方法、およびプログラムに関する。
　本願は、２０２２年９月２８日に、日本に出願された特願２０２２－１５４４７１号に基づき優先権を主張し、その内容をここに援用する。 The present invention relates to a battery state evaluation device, a battery state evaluation method, and a program.
This application claims priority based on Japanese Patent Application No. 2022-154471, filed on September 28, 2022, the contents of which are incorporated herein by reference.
　近年、より多くの人々が手ごろで信頼でき、持続可能かつ先進的なエネルギーへのアクセスを確保できるようにするため、エネルギーの効率化に貢献するバッテリ共用サービスに関する研究開発が行われている。バッテリ共用サービスは、電動車両などで使用される着脱式バッテリ（二次電池）を専用のバッテリステーションにおいて貸出、収集し、または交換可能とするサービスである。このような二次電池に関し、例えば、特許文献１には、バッテリの性能評価をより高精度に行うため、実の充電条件と標準の充電条件との偏差に基づいて最大容量を推定する技術が開示されている。 In recent years, research and development has been conducted into battery sharing services that contribute to energy efficiency, so that more people can have access to affordable, reliable, sustainable, and advanced energy. Battery sharing services are a service that allows removable batteries (secondary batteries) used in electric vehicles and the like to be rented, collected, or exchanged at dedicated battery stations. For such secondary batteries, for example, Patent Document 1 discloses a technology that estimates maximum capacity based on the deviation between actual charging conditions and standard charging conditions in order to evaluate battery performance with a high degree of accuracy.
特開２０１９－０６６２１６号公報JP 2019-066216 A
　しかしながら、従来技術による性能評価では、バッテリの残価値を必ずしも正確に評価できない場合があった。 However, performance evaluation using conventional technology did not always provide an accurate assessment of the remaining value of the battery.
　本発明は、このような事情を考慮してなされたものであり、バッテリの残価値をより正確に評価することができるバッテリ状態評価装置、バッテリ状態評価方法、およびプログラムを提供することを目的の一つとする。そして、本発明は、延いてはエネルギーの効率化に寄与するものである。 The present invention was made in consideration of these circumstances, and one of its objectives is to provide a battery state evaluation device, a battery state evaluation method, and a program that can more accurately evaluate the residual value of a battery. This invention will ultimately contribute to energy efficiency.
　この発明に係るバッテリ状態評価装置、バッテリ状態評価方法、およびプログラムは、以下の構成を採用した。
　（１）：この発明の一態様に係るバッテリ状態評価装置は、バッテリの状態を評価するバッテリ状態評価装置であって、前記バッテリの電気的特性に関する第１情報と、前記バッテリの劣化の外的要因に関する第２情報とを取得する取得部と、前記取得部により取得された前記第１情報に基づく第１評価結果と、前記第２情報に基づく第２評価結果とに基づいて前記バッテリの状態について総合的な評価結果を出力する評価部と、を備えるものである。 The battery state evaluation device, the battery state evaluation method, and the program according to the present invention employ the following configuration.
(1): A battery condition evaluation device according to one embodiment of the present invention is a battery condition evaluation device that evaluates the condition of a battery, and includes an acquisition unit that acquires first information regarding electrical characteristics of the battery and second information regarding external factors of deterioration of the battery, and an evaluation unit that outputs a comprehensive evaluation result regarding the condition of the battery based on a first evaluation result based on the first information acquired by the acquisition unit and a second evaluation result based on the second information.
　（２）：上記（１）の態様において、前記評価部は、前記第１評価結果および前記第２評価結果に含まれる複数の評価項目についての評価結果のうち、評価が最も低い評価項目の評価結果を、前記バッテリについての総合的な評価結果とするものである。 (2): In the aspect of (1) above, the evaluation unit determines the evaluation result of the evaluation item with the lowest evaluation among the evaluation results for the evaluation items included in the first evaluation result and the second evaluation result as the overall evaluation result for the battery.
　（３）：上記（１）または（２）の態様において、前記取得部は、前記バッテリの外観を撮像した画像データを前記第２情報として取得し、前記評価部は、前記画像データに基づいて登録された第２評価結果と、前記バッテリの電気的特性に基づいて評価された第１評価結果とに基づいて前記総合的な評価結果を出力するものである。 (3): In the above aspect (1) or (2), the acquisition unit acquires image data of the exterior of the battery as the second information, and the evaluation unit outputs the overall evaluation result based on the second evaluation result registered based on the image data and the first evaluation result evaluated based on the electrical characteristics of the battery.
　（４）：上記（１）から（３）のいずれかの態様において、前記評価部は、予め記憶されている基準画像と、前記取得部により取得した前記画像データとを比較した結果に基づいて前記外的要因に関する第２評価結果を取得し、前記第２評価結果と、前記バッテリの電気的特性に基づいて評価された第１評価結果とに基づいて前記総合的な評価結果を出力するものである。 (4): In any of the above aspects (1) to (3), the evaluation unit obtains a second evaluation result regarding the external factors based on a result of comparing a pre-stored reference image with the image data obtained by the acquisition unit, and outputs the overall evaluation result based on the second evaluation result and the first evaluation result evaluated based on the electrical characteristics of the battery.
　（５）：上記（１）から（４）のいずれかの態様において、前記第２情報としての画像データが取得されていない場合、前記バッテリの利用者に前記画像データの取得を依頼する通知を行う通知部をさらに備えるものである。 (5): In any of the above aspects (1) to (4), a notification unit is further provided that notifies the user of the battery to request acquisition of the image data if the image data as the second information has not been acquired.
　（６）：上記（１）から（５）のいずれかの態様において、前記評価部は、前記バッテリの市場における供給状況に応じて前記評価結果を補正するものである。 (6): In any of the above aspects (1) to (5), the evaluation unit corrects the evaluation result according to the supply situation of the battery in the market.
　（７）：この発明の一態様に係るバッテリ状態評価方法は、バッテリの状態を評価するバッテリ状態評価装置が、前記バッテリの電気的特性に関する第１情報と、前記バッテリの劣化の外的要因に関する第２情報とを取得し、取得した前記第１情報および前記第２情報に基づいて前記バッテリの状態について総合的な評価結果を出力するものである。 (7): In one aspect of the present invention, a battery condition evaluation method includes a battery condition evaluation device that evaluates the state of a battery, and the battery condition evaluation device acquires first information about the electrical characteristics of the battery and second information about external factors that cause deterioration of the battery, and outputs a comprehensive evaluation result about the state of the battery based on the acquired first information and second information.
　（８）：この発明の一態様に係るプログラムは、バッテリの状態を評価するバッテリ状態評価装置に、前記バッテリの電気的特性に関する第１情報と、前記バッテリの劣化の外的要因に関する第２情報とを取得させ、取得した前記第１情報および前記第２情報に基づいて前記バッテリの状態について総合的な評価結果を出力させるものである。 (8): A program according to one aspect of the present invention causes a battery state evaluation device, which evaluates the state of a battery, to acquire first information on the electrical characteristics of the battery and second information on external factors that cause deterioration of the battery, and to output a comprehensive evaluation result on the state of the battery based on the acquired first information and second information.
　（１）～（８）の態様によれば、バッテリの残価値をより正確に評価することができるバッテリ状態評価装置、バッテリ状態評価方法、およびプログラムを提供することができる。 According to aspects (1) to (8), it is possible to provide a battery state evaluation device, a battery state evaluation method, and a program that can more accurately evaluate the residual value of a battery.
本実施形態におけるバッテリ共用システムの構成の一例を示す図である。1 is a diagram illustrating an example of a configuration of a battery sharing system according to an embodiment of the present invention. 着脱式バッテリの構成の一例を示す図である。FIG. 2 is a diagram illustrating an example of the configuration of a removable battery. 電動バイクの構成の一例を示す図である。FIG. 1 is a diagram illustrating an example of the configuration of an electric motorcycle. 管理装置のシステム構成の一例を示す図である。FIG. 2 illustrates an example of a system configuration of a management device. 第１評価項目の一例を示す図である。FIG. 11 is a diagram showing an example of a first evaluation item. 第２評価項目の一例を示す図である。FIG. 11 is a diagram showing an example of a second evaluation item. 評価装置が対象バッテリの状態評価を行う処理の流れの一例を示すフローチャートである。10 is a flowchart showing an example of a process flow in which the evaluation device evaluates the state of a target battery.
　以下、図面を参照し、本発明のバッテリ状態評価装置、バッテリ状態評価方法、およびプログラムの実施形態について説明する。 Below, with reference to the drawings, an embodiment of the battery state evaluation device, battery state evaluation method, and program of the present invention will be described.
　［１．バッテリ共用システムの概要］
　図１は、本実施形態のバッテリ状態評価装置を適用したバッテリ共用システムの構成の一例を示す図である。バッテリ共用システム１は、バッテリを複数の利用者で共用することを前提として利用者にバッテリの貸出を行うシステムである。以下では、このようなバッテリの貸出を行うサービスを「バッテリ共用サービス」という。図１は、バッテリ共用システム１が利用者Ｕに対してバッテリ共用サービスを提供する構成を表したものである。バッテリ共用システム１は、例えば、バッテリ交換ステーション３００と、評価装置４００と、利用者Ｕの端末装置（以下「利用者端末装置」という。）５００と、評価者Ｖの端末装置（以下「評価者端末装置」という。）６００と、を備える。バッテリ交換ステーション３００と、評価装置４００と、利用者端末装置５００と、評価者端末装置６００と、は、通信ネットワークＮＷを介して互いに通信可能である。図１は、バッテリ共用システム１が利用者Ｕの利用者端末装置５００に対してバッテリ１００の評価結果を出力する構成を表したものである。 [1. Overview of the battery sharing system]
FIG. 1 is a diagram showing an example of the configuration of a battery sharing system to which the battery state evaluation device of the present embodiment is applied. The battery sharing system 1 is a system that lends batteries to users on the premise that the batteries are shared by multiple users. Hereinafter, such a service for lending batteries is referred to as a "battery sharing service". FIG. 1 shows a configuration in which the battery sharing system 1 provides a battery sharing service to a user U. The battery sharing system 1 includes, for example, a battery exchange station 300, an evaluation device 400, a terminal device (hereinafter referred to as a "user terminal device") 500 of the user U, and a terminal device (hereinafter referred to as an "evaluator terminal device") 600 of an evaluator V. The battery exchange station 300, the evaluation device 400, the user terminal device 500, and the evaluator terminal device 600 can communicate with each other via a communication network NW. FIG. 1 shows a configuration in which the battery sharing system 1 outputs an evaluation result of the battery 100 to the user terminal device 500 of the user U.
　バッテリ１００は、バッテリ交換ステーション３００により利用者Ｕに貸し出されるバッテリである。利用者Ｕはバッテリ交換ステーション３００から貸し出されたバッテリ１００を使用して、例えば電動バイク２００を駆動させる。電動バイク２００は、バッテリ１００の使用目的として利用者Ｕが駆動させる電動機器（以下「用途機器」という。）の一例である。バッテリ交換ステーション３００は、利用者Ｕに対して充電済みのバッテリ１００を貸し出したり、利用者Ｕから使用済みのバッテリ１００を回収したりする。また、バッテリ交換ステーション３００は、回収したバッテリ１００を充電して次の貸し出しに備えることができる。また、バッテリ交換ステーション３００は、返却されたバッテリ１００と引き換えに新たな充電済みのバッテリ１００を利用者Ｕに貸し出す（すなわち交換）ことも可能である。 The battery 100 is a battery that is loaned to the user U by the battery exchange station 300. The user U uses the battery 100 loaned from the battery exchange station 300 to drive, for example, an electric motorcycle 200. The electric motorcycle 200 is an example of an electric device (hereinafter referred to as "purpose device") that the user U drives as the intended use of the battery 100. The battery exchange station 300 loans a charged battery 100 to the user U and collects used batteries 100 from the user U. The battery exchange station 300 can also charge the collected battery 100 to prepare for the next loan. The battery exchange station 300 can also loan (i.e., exchange) a new charged battery 100 to the user U in exchange for the returned battery 100.
　このようなバッテリ共用システム１において、評価装置４００はバッテリ１００の状態評価を行うものである。より具体的には、評価装置４００は、バッテリ１００の電気的特性に関する特性情報（第１情報）と、バッテリ１００の劣化の外的要因に関する外観情報（第２情報）とを取得し、取得した特性情報に基づく第１評価結果と、外観情報に基づく第２評価結果とに基づいてバッテリ１００の状態について総合的な評価結果を出力するものである。評価装置４００は「バッテリ状態評価装置」の一例である。ここで評価者Ｖは、バッテリ１００について外観情報に基づく評価を行う者であり、その評価結果（第２評価結果）を、評価者端末装置６００を用いて評価装置４００に提供するものである。 In such a battery sharing system 1, the evaluation device 400 evaluates the state of the battery 100. More specifically, the evaluation device 400 acquires characteristic information (first information) related to the electrical characteristics of the battery 100 and appearance information (second information) related to external factors of deterioration of the battery 100, and outputs a comprehensive evaluation result on the state of the battery 100 based on a first evaluation result based on the acquired characteristic information and a second evaluation result based on the appearance information. The evaluation device 400 is an example of a "battery state evaluation device." Here, an evaluator V is a person who performs an evaluation of the battery 100 based on the appearance information, and provides the evaluation result (second evaluation result) to the evaluation device 400 using the evaluator terminal device 600.
　［２．バッテリ共用システムの各部の概要］
　通信ネットワークＮＷは、有線通信の伝送路であってもよく、無線通信の伝送路であってもよく、無線通信の伝送路および有線通信の伝送路の組み合わせであってもよい。通信ネットワークＮＷは、無線パケット通信網、インターネット、Ｐ２Ｐネットワーク、専用回線、ＶＰＮ（Virtual Private Network）、電力線通信回線、車車間通信回線、路車間通信回線などを含んでもよい。通信ネットワークＮＷは、（ｉ）携帯電話回線網などの移動体通信網を含んでもよく、（ｉｉ）無線ＭＡＮ（Metropolitan Area Network）（例えば、ＷｉＭＡＸ（登録商標）である。）、無線ＬＡＮ（例えば、Ｗｉ－Ｆｉ（登録商標）である。）、Ｂｌｕｅｔｏｏｔｈ（登録商標）、Ｚｉｇｂｅｅ（登録商標）、ＮＦＣ（Near Field Communication）などの無線通信網を含んでもよい。 [2. Overview of each part of the battery sharing system]
The communication network NW may be a transmission path for wired communication, a transmission path for wireless communication, or a combination of a transmission path for wireless communication and a transmission path for wired communication. The communication network NW may include a wireless packet communication network, the Internet, a P2P network, a dedicated line, a Virtual Private Network (VPN), a power line communication line, a vehicle-to-vehicle communication line, a road-to-vehicle communication line, and the like. The communication network NW may include (i) a mobile communication network such as a mobile phone line network, or (ii) a wireless communication network such as a wireless MAN (Metropolitan Area Network) (e.g., WiMAX (registered trademark)), a wireless LAN (e.g., Wi-Fi (registered trademark)), Bluetooth (registered trademark), Zigbee (registered trademark), or NFC (Near Field Communication).
　バッテリ１００は、電気機器に着脱自在に搭載されるバッテリ装置である。電気機器は、バッテリ１００を装着可能であり、装着されたバッテリ１００から電力供給を受けることができる電気機器であればよい。以下、このような電気機器を、バッテリ１００に対応した電気機器との意味で「対応機器」という場合がある。 Battery 100 is a battery device that can be detachably mounted on an electrical device. Any electrical device can be equipped with battery 100 and can receive power from the attached battery 100. Hereinafter, such electrical devices may be referred to as "compatible devices" to mean electrical devices that are compatible with battery 100.
　評価装置４００は、評価対象のバッテリ１００（以下「対象バッテリ１００」という。）について取得された特性情報および外観情報をもとに複数の評価項目のそれぞれについての評価結果を取得し、取得した複数の評価結果に基づいて対象バッテリ１００についての総合的な評価結果を取得して出力する装置である。 The evaluation device 400 is a device that obtains evaluation results for each of a number of evaluation items based on characteristic information and appearance information obtained about the battery 100 to be evaluated (hereinafter referred to as the "target battery 100"), and obtains and outputs an overall evaluation result for the target battery 100 based on the obtained multiple evaluation results.
　ここで特性情報は、対象バッテリ１００の電気的特性を示す情報であり、対象バッテリ１００に記録された各種の状態情報（以下「バッテリ情報」という。）に基づいて取得されるものとする。例えば、バッテリ情報には、バッテリ１００に印加された電圧や電流、温度、ＳＯＣなどの測定データが含まれる。バッテリ情報は、バッテリ１００自身、またはバッテリ１００に接続された対応機器によってバッテリ１００の内部の記憶部に記録される。なお、本実施形態では、バッテリ交換ステーション３００は、バッテリ１００に対してバッテリ情報を読み書きするための回路等を有し、自ステーションが収容するバッテリ１００からバッテリ情報を読み出して評価装置４００に提供するものとする。 The characteristic information here is information indicating the electrical characteristics of the target battery 100, and is acquired based on various state information (hereinafter referred to as "battery information") recorded in the target battery 100. For example, the battery information includes measurement data such as the voltage and current applied to the battery 100, temperature, and SOC. The battery information is recorded in a memory unit inside the battery 100 by the battery 100 itself or a compatible device connected to the battery 100. In this embodiment, the battery exchange station 300 has a circuit or the like for reading and writing battery information from the battery 100, and reads out the battery information from the battery 100 accommodated in the station and provides it to the evaluation device 400.
　評価装置４００は、バッテリ交換ステーション３００から供給されるバッテリ情報をもとに対象バッテリ１００の電気的特性を示す特性情報を取得し、取得した特性情報をもとに、対象バッテリ１００の電気的特性に関する評価項目のそれぞれについての評価結果（以下「第１評価結果」という。）を取得する。なお、特性情報は、対象バッテリ１００に対して各種の統計処理や分析処理を施すことによって取得され得る。また、評価装置４００は、取得した特性情報を、予め各評価項目について定められた評価基準と比較することにより、各評価項目についての評価結果を取得し得る。 The evaluation device 400 acquires characteristic information indicating the electrical characteristics of the target battery 100 based on the battery information supplied from the battery exchange station 300, and acquires an evaluation result (hereinafter referred to as the "first evaluation result") for each evaluation item related to the electrical characteristics of the target battery 100 based on the acquired characteristic information. Note that the characteristic information can be acquired by subjecting the target battery 100 to various statistical and analytical processes. Furthermore, the evaluation device 400 can acquire an evaluation result for each evaluation item by comparing the acquired characteristic information with evaluation criteria previously defined for each evaluation item.
　一方、外観情報は、対象バッテリ１００の外観に関する情報である。典型的には、外観情報は、対象バッテリ１００の外観を撮像した画像データである。図１の例では、外観情報は、カメラＣ等の撮像装置によって画像データとして取得され、評価装置４００に供給される。外観情報の供給は、カメラＣと評価装置４００の通信によって実現されてもよいし、カメラＣにより画像データが記録された記憶媒体を評価装置４００に接続することによって実現されてもよい。 On the other hand, the appearance information is information related to the appearance of the target battery 100. Typically, the appearance information is image data capturing an image of the appearance of the target battery 100. In the example of FIG. 1, the appearance information is acquired as image data by an imaging device such as a camera C, and is supplied to the evaluation device 400. The supply of the appearance information may be achieved by communication between the camera C and the evaluation device 400, or may be achieved by connecting a storage medium on which image data is recorded by the camera C to the evaluation device 400.
　評価装置４００は、対象バッテリ１００について外観情報に基づく評価結果として第２評価結果を取得する。第２評価結果は、例えば、評価者Ｖが外観情報として取得された画像データを目視にて確認した結果として評価装置４００に登録される。なお、外観情報は、カメラＣが取得する画像データに加えて／代えて、評価者Ｖが対象バッテリ１００の現物を目視確認することによって取得または認識される情報であってもよい。すなわち、第２評価結果は、例えば、評価者Ｖが対象バッテリ１００の現物を目視にて確認した結果として評価装置４００に登録されてもよい。 The evaluation device 400 acquires a second evaluation result as an evaluation result based on the appearance information of the target battery 100. The second evaluation result is registered in the evaluation device 400, for example, as a result of the evaluator V visually checking the image data acquired as the appearance information. Note that the appearance information may be information acquired or recognized by the evaluator V by visually checking the actual target battery 100 in addition to/instead of the image data acquired by the camera C. That is, the second evaluation result may be registered in the evaluation device 400, for example, as a result of the evaluator V visually checking the actual target battery 100.
　評価装置４００は、このように取得された第１評価結果および第２評価結果を総合的に評価することにより、対象バッテリ１００についての最終的な評価結果を決定し、利用者Ｕの利用者端末装置５００に出力する。なお、評価者Ｖと利用者Ｕは異なる人物であってもよいし、同一人物であってもよい。また、対象バッテリ１００の外観の撮像は、評価者Ｖによって実施されてもよいし、利用者Ｕによって実施されてもよいし、それ以外の人物によって実施されてもよい。 The evaluation device 400 determines a final evaluation result for the target battery 100 by comprehensively evaluating the first evaluation result and the second evaluation result thus obtained, and outputs the final evaluation result to the user terminal device 500 of the user U. Note that the evaluator V and the user U may be different persons or may be the same person. Furthermore, the external image of the target battery 100 may be captured by the evaluator V, the user U, or another person.
　［３．着脱式バッテリの構成］
　図２は、バッテリ１００の構成の一例を示す図である。バッテリ１００は、例えば、蓄電部１２０と、ＢＭＵ１３０と、接続部１４０と、を備える。ＢＭＵ１３０は、例えば、測定センサ１３１と、記憶部１３２と、を備える。蓄電部１２０は、例えば、複数の単電池を直列に接続した組電池である。蓄電部１２０を構成する単電池は、例えば、リチウムイオン電池（Lithium-Ion Battery：ＬＩＢ）や、ニッケル水素電池、全固体電池など、充電と放電とを繰り返すことができる二次電池である。蓄電部１２０を構成する二次電池としては、例えば、鉛蓄電池、ナトリウムイオン電池などの他、電気二重層キャパシタなどのキャパシタ、または二次電池とキャパシタとを組み合わせた複合電池なども考えられる。蓄電部１２０を構成する二次電池の構成に関しては特に限定されない。 [3. Configuration of removable battery]
FIG. 2 is a diagram showing an example of the configuration of the battery 100. The battery 100 includes, for example, a power storage unit 120, a BMU 130, and a connection unit 140. The BMU 130 includes, for example, a measurement sensor 131 and a memory unit 132. The power storage unit 120 is, for example, a battery pack in which a plurality of single cells are connected in series. The single cells constituting the power storage unit 120 are, for example, secondary batteries that can be repeatedly charged and discharged, such as lithium-ion batteries (LIBs), nickel-metal hydride batteries, and all-solid-state batteries. As the secondary batteries constituting the power storage unit 120, for example, in addition to lead-acid batteries and sodium-ion batteries, capacitors such as electric double-layer capacitors, or composite batteries combining secondary batteries and capacitors are also considered. There is no particular limitation on the configuration of the secondary batteries constituting the power storage unit 120.
　ＢＭＵ１３０は、蓄電部１２０の充電や放電の制御、セルバランシング、蓄電部１２０の異常検出、蓄電部１２０のセル温度の導出、蓄電部１２０の充放電電流の導出、蓄電部１２０のＳＯＣの推定などを行う。ＢＭＵ１３０は、測定センサ１３１の測定結果や、測定結果に基づいて把握した蓄電部１２０の異常や故障などを、バッテリ状態情報として記憶部１３２に記憶させる。測定センサ１３１は、蓄電部１２０の充電状態を測定するための電圧センサ、電流センサ、温度センサなどである。測定センサ１３１は、測定された電圧、電流、温度などの測定結果をＢＭＵ１３０に出力する。なお、電気的に作動していないバッテリ１００は、前回の作動終了時刻から所定以上の時間が経過しているバッテリ１００であると定義してよい。そしてそのように定義されたバッテリ１００以外を、電気的に作動しているバッテリ１００と定義してよい。電気的に作動している状態とは、一例として、バッテリ１００が充電されている状態、またはバッテリ１００が放電している状態の何れかの状態であると定義してよい。ＢＵＭ１３０は、測定センサ１３１の測定結果として、測定値と測定時刻とを対応づけた情報を記憶部１３２に記録してもよいし、測定値と測定頻度とを対応づけた情報（いわゆるヒストグラム）を記憶部１３２に記録してもよい。 The BMU 130 controls the charging and discharging of the power storage unit 120, performs cell balancing, detects abnormalities in the power storage unit 120, derives the cell temperature of the power storage unit 120, derives the charge and discharge current of the power storage unit 120, estimates the SOC of the power storage unit 120, and so on. The BMU 130 stores the measurement results of the measurement sensor 131 and abnormalities and failures of the power storage unit 120 identified based on the measurement results in the memory unit 132 as battery state information. The measurement sensor 131 is a voltage sensor, a current sensor, a temperature sensor, and so on for measuring the charging state of the power storage unit 120. The measurement sensor 131 outputs the measurement results of the measured voltage, current, temperature, and so on to the BMU 130. Note that the battery 100 that is not electrically operating may be defined as a battery 100 for which a predetermined time or more has passed since the end of the previous operation. Any battery 100 other than the battery 100 defined in this way may be defined as an electrically operating battery 100. The electrically operating state may be defined as, for example, a state in which the battery 100 is being charged or a state in which the battery 100 is being discharged. The BUM 130 may record in the memory unit 132, as the measurement result of the measurement sensor 131, information associating the measurement value with the measurement time, or information associating the measurement value with the measurement frequency (a so-called histogram) in the memory unit 132.
　記憶部１３２は、例えば、ＨＤＤ（Hard Disk Drive）やＳＳＤ（Solid State Drive）、フラッシュメモリなどの不揮発性の記憶装置を含む。記憶部１３２は、上述したバッテリ状態情報を記憶する。記憶部１３２には、バッテリ１００に対して割り当てられた識別情報（バッテリＩＤ）が記憶されてもよい。接続部１４０は、バッテリ１００が対応機器に装着された場合に、対応機器のバッテリ接続部に電気的に接続される。この状態で、バッテリ１００は、蓄電部１２０に蓄えた電力を対応機器に供給する。 The memory unit 132 includes a non-volatile storage device, such as a hard disk drive (HDD), a solid state drive (SSD), or a flash memory. The memory unit 132 stores the battery status information described above. The memory unit 132 may also store identification information (battery ID) assigned to the battery 100. When the battery 100 is attached to a compatible device, the connection unit 140 is electrically connected to the battery connection unit of the compatible device. In this state, the battery 100 supplies the power stored in the power storage unit 120 to the compatible device.
　［４．対応機器の一例］
　図３は、対応機器の一例としての電動バイク２００の構成の一例を示す図である。図３に示す電動バイク２００は、対応機器の一例として示すものであり、対応機器を電動バイクに限定するものではない。対応機器は、バッテリ１００に対応したものであれば任意の電気機器であってよい。電動バイク２００は、バッテリ１００から供給される電力によって駆動される電動機（電動モータ）の駆動力で走行する。ただし、電動バイク２００は、バッテリ１００と、ディーゼルエンジンやガソリンエンジンなどの内燃機関とを組み合わせた駆動力によって走行するハイブリッド電動車両であってもよい。電動バイク２００は、例えば、バッテリ接続部２１０と、車両制御部２２０と、走行駆動力出力装置２３０と、車両センサ１８と、ＨＭＩ（Human Machine Interface）２０と、ＧＮＳＳ（Global Navigation Satellite System）受信機２２と、を備える。 [4. Examples of compatible devices]
FIG. 3 is a diagram showing an example of the configuration of an electric motorcycle 200 as an example of a compatible device. The electric motorcycle 200 shown in FIG. 3 is shown as an example of a compatible device, and the compatible device is not limited to an electric motorcycle. The compatible device may be any electric device that is compatible with the battery 100. The electric motorcycle 200 runs with the driving force of an electric motor driven by power supplied from the battery 100. However, the electric motorcycle 200 may be a hybrid electric vehicle that runs with the driving force of a combination of the battery 100 and an internal combustion engine such as a diesel engine or a gasoline engine. The electric motorcycle 200 includes, for example, a battery connection unit 210, a vehicle control unit 220, a driving force output device 230, a vehicle sensor 18, an HMI (Human Machine Interface) 20, and a GNSS (Global Navigation Satellite System) receiver 22.
　バッテリ接続部２１０は、バッテリ１００が電動バイク２００に装着された場合に、バッテリ１００と電気的に接続される。バッテリ接続部２１０は、バッテリ１００から電力供給を受ける電力線の接続端子や、バッテリ１００と車両制御部２２０との間でデータ通信を行う通信線の接続端子などを含む。 The battery connection unit 210 is electrically connected to the battery 100 when the battery 100 is attached to the electric motorcycle 200. The battery connection unit 210 includes a connection terminal for a power line that receives power from the battery 100, and a connection terminal for a communication line that communicates data between the battery 100 and the vehicle control unit 220.
　車両制御部２２０は、車両センサ１８から測定結果を取得し、バッテリ１００が備えるＢＭＵ（Battery Management Unit）１１０から蓄電部１２０に関する各種情報（例えば、ＳＯＣやＤＯＤなど）を取得し、ＧＮＳＳ受信機２２から電動バイク２００の位置を取得する。車両制御部２２０は、取得したデータに基づき、走行駆動力出力装置２３０を制御する。車両制御部２２０は、ＧＮＳＳ受信機２２から取得した電動バイク２００の位置情報を、バッテリ接続部２１０を介してバッテリ１００に送信してもよい。 The vehicle control unit 220 acquires measurement results from the vehicle sensors 18, acquires various information (e.g., SOC, DOD, etc.) related to the power storage unit 120 from the BMU (Battery Management Unit) 110 provided in the battery 100, and acquires the position of the electric motorcycle 200 from the GNSS receiver 22. The vehicle control unit 220 controls the driving force output device 230 based on the acquired data. The vehicle control unit 220 may transmit the position information of the electric motorcycle 200 acquired from the GNSS receiver 22 to the battery 100 via the battery connection unit 210.
　また、車両制御部２２０は、電動バイク２００に装着されたバッテリ１００から当該バッテリ１００の使用制限に関する情報（以下「制限情報」という。）を取得し、制限情報に基づいて当該バッテリ１００の使用を制限する機能を有する。バッテリ１００の使用制限については後述する。 The vehicle control unit 220 also has the function of acquiring information (hereinafter referred to as "restriction information") relating to usage restrictions of the battery 100 mounted on the electric motorcycle 200 from the battery 100, and restricting the use of the battery 100 based on the restriction information. The usage restrictions of the battery 100 will be described later.
　走行駆動力出力装置２３０は、例えば、電動モータと、インバータと、インバータを制御するＥＣＵ（Electronic Control Unit）と、を備える。ＥＣＵは、例えば、インバータを制御することによって、バッテリ１００から電動モータに供給される電力を制御する。車両センサ１８は、電動バイク２００に搭載された速度センサ、加速度センサ、回転速度センサ、オドメータ、その他の各種のセンサを含む。車両センサ１８は、測定結果を車両制御部２２０に出力する。 The driving force output device 230 includes, for example, an electric motor, an inverter, and an ECU (Electronic Control Unit) that controls the inverter. The ECU controls the power supplied from the battery 100 to the electric motor, for example by controlling the inverter. The vehicle sensor 18 includes a speed sensor, an acceleration sensor, a rotational speed sensor, an odometer, and various other sensors mounted on the electric motorcycle 200. The vehicle sensor 18 outputs the measurement results to the vehicle control unit 220.
　ＨＭＩ２０は、電動バイク２００の利用者に対して各種の情報を出力するとともに、利用者による入力操作を受け付ける。ＨＭＩ２０は、例えば、ＨＵＤ（Head Up Display）およびメーター表示部などの各種の表示装置（タッチパネルであってもよい）、スピーカなどを備える。ＧＮＳＳ受信機２２は、例えば、ＧＮＳＳ衛星（ＧＰＳ（Global Positioning System）衛星など）から到来する電波に基づいて、電動バイク２００の位置を測位する。 The HMI 20 outputs various information to the user of the electric motorcycle 200 and accepts input operations by the user. The HMI 20 includes various display devices (which may be a touch panel) such as a HUD (Head Up Display) and a meter display unit, as well as a speaker. The GNSS receiver 22 locates the position of the electric motorcycle 200 based on radio waves received from a GNSS satellite (such as a GPS (Global Positioning System) satellite).
　［５．評価装置の構成］
　図４は、評価装置４００のシステム構成の一例を示す図である。評価装置４００は、例えば、記憶部４１０と、通信部４２０と、表示部４４０と、情報取得部４５０と、評価部４６０と、通知部４７０と、を備える。これらの構成要素は、例えば、ＣＰＵ（Central Processing Unit）などのハードウェアプロセッサがプログラム（ソフトウェア）を実行することにより実現される。これらの構成要素のうち一部または全部は、ＬＳＩ（Large Scale Integration）やＡＳＩＣ（Application Specific Integrated Circuit）、ＦＰＧＡ（Field-Programmable Gate Array）、ＧＰＵ（Graphics Processing Unit）などのハードウェア（回路部；circuitryを含む）によって実現されてもよいし、ソフトウェアとハードウェアの協働によって実現されてもよい。プログラムは、予めＨＤＤやＳＳＤ、フラッシュメモリなどの記憶装置（非一過性の記憶媒体を備える記憶装置）に格納されていてもよいし、ＤＶＤやＣＤ－ＲＯＭなどの着脱可能な記憶媒体（非一過性の記憶媒体）に格納されており、記憶媒体がドライブ装置に装着されることでインストールされてもよい。 5. Configuration of evaluation device
FIG. 4 is a diagram showing an example of a system configuration of the evaluation device 400. The evaluation device 400 includes, for example, a storage unit 410, a communication unit 420, a display unit 440, an information acquisition unit 450, an evaluation unit 460, and a notification unit 470. These components are realized by, for example, a hardware processor such as a CPU (Central Processing Unit) executing a program (software). Some or all of these components may be realized by hardware (including circuitry) such as an LSI (Large Scale Integration), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a GPU (Graphics Processing Unit), or may be realized by cooperation between software and hardware. The program may be stored in advance in a storage device such as an HDD, SSD, or flash memory (a storage device having a non-transient storage medium), or may be stored in a removable storage medium such as a DVD or CD-ROM (a non-transient storage medium), and may be installed by mounting the storage medium in a drive device.
　記憶部４１０は、例えば、ＨＤＤやＳＳＤ、フラッシュメモリなどの不揮発性の記憶装置を含む。記憶部４１０は、評価装置４００の動作に関する各種情報の格納領域として使用される。記憶部４１０は、例えば、上述の特性情報４１１と、外観情報４１２と、第１評価情報４１３と、第２評価情報４１４と、評価基準情報４１５と、を記憶する。 The storage unit 410 includes, for example, a non-volatile storage device such as an HDD, SSD, or flash memory. The storage unit 410 is used as a storage area for various information related to the operation of the evaluation device 400. The storage unit 410 stores, for example, the above-mentioned characteristic information 411, appearance information 412, first evaluation information 413, second evaluation information 414, and evaluation criteria information 415.
　通信部４２０は、評価装置４００を通信ネットワークＮＷに接続する通信インターフェースである。通信部４２０は、通信ネットワークＮＷを介してバッテリ交換ステーション３００、利用者端末装置５００、評価者端末装置６００と通信可能である。 The communication unit 420 is a communication interface that connects the evaluation device 400 to the communication network NW. The communication unit 420 can communicate with the battery exchange station 300, the user terminal device 500, and the evaluator terminal device 600 via the communication network NW.
　表示部４４０は、ＣＲＴ（Cathode Ray Tube）ディスプレイや液晶ディスプレイ、有機ＥＬ（Electro-Luminescence）ディスプレイ等の表示装置を用いて構成される。表示部４４０には任意の情報が表示されてよい。 The display unit 440 is configured using a display device such as a CRT (Cathode Ray Tube) display, a liquid crystal display, or an organic EL (Electro-Luminescence) display. Any information may be displayed on the display unit 440.
　情報取得部４５０は、通信部４２０を介してバッテリ交換ステーション３００から対象バッテリ１００のバッテリ情報を取得するとともに、取得したバッテリ情報に基づいて特性情報４１１を生成して記憶部４１０に保存する。上述のとおり、情報取得部４５０は、バッテリ情報に対して各種の統計処理や分析処理を行うことにより特性情報４１１を生成する。特性情報４１１は、対象バッテリ１００について、電気的特性に基づく評価項目（以下「第１評価項目」という。）の評価を可能にする情報であればよい。 The information acquisition unit 450 acquires battery information of the target battery 100 from the battery exchange station 300 via the communication unit 420, and generates characteristic information 411 based on the acquired battery information and stores it in the memory unit 410. As described above, the information acquisition unit 450 generates characteristic information 411 by performing various statistical and analytical processes on the battery information. The characteristic information 411 may be any information that enables evaluation of evaluation items based on electrical characteristics (hereinafter referred to as "first evaluation items") for the target battery 100.
　評価部４６０は、特性情報４１１に基づいて第１評価項目を評価し、その評価結果を第１評価情報４１３として記憶部４１０に保存する。より具体的には、評価部４６０は、特性情報４１１を、第１評価項目についての評価基準を示す評価基準情報４１５と比較することにより、第１評価項目を評価する。さらに、評価部４６０は、第１評価情報４１３および第２評価情報４１４について総合的な評価を行うことにより、対象バッテリ１００についての最終的な評価結果を決定して利用者端末装置５００に送信する。 The evaluation unit 460 evaluates the first evaluation item based on the characteristic information 411 and stores the evaluation result in the storage unit 410 as first evaluation information 413. More specifically, the evaluation unit 460 evaluates the first evaluation item by comparing the characteristic information 411 with evaluation criteria information 415 that indicates the evaluation criteria for the first evaluation item. Furthermore, the evaluation unit 460 performs a comprehensive evaluation of the first evaluation information 413 and the second evaluation information 414 to determine a final evaluation result for the target battery 100 and transmits it to the user terminal device 500.
　なお、最終的な評価結果を利用者端末装置５００に送信することは、最終的な評価結果を出力することの一例である。最終的な評価結果の出力態様は、利用者端末装置５００への送信であってもよいし、表示部４４０による表示であってもよいし、記憶部４１０への記録であってもよい。これらのほか、最終的な評価結果の出力態様は、当該評価結果を示す音声の出力であってもよいし、それ以外の態様の情報出力であってもよい。 Note that transmitting the final evaluation result to the user terminal device 500 is an example of outputting the final evaluation result. The output mode of the final evaluation result may be transmission to the user terminal device 500, display by the display unit 440, or recording in the memory unit 410. In addition to these, the output mode of the final evaluation result may be the output of a sound indicating the evaluation result, or other types of information output.
　通知部４７０は、利用者Ｕ向けの通知を利用者端末装置５００に送信する。例えば、通知部４７０は、利用者Ｕに対して対象バッテリ１００について外観情報の提供を依頼する通知を送信する。例えば、この通知は、利用者Ｕが、自身で使用済みのバッテリ１００を評価対象としてバッテリ共用システム１に供給した際に、評価装置４００が当該バッテリ１００についての外観情報が取得されていないことを検知した場合に通知されてもよい。この場合、利用者Ｕは、利用者端末装置５００がカメラ機能を有していれば、利用者端末装置５００で対象バッテリ１００の外観を撮像し、その画像データを評価装置４００に送信してもよい。なお、対象バッテリ１００の撮像を利用者Ｕに依頼する場合、通知部４７０は、状態評価に必要な画像データが取得されるように、利用者端末装置５００に、利用者の撮像操作を支援する情報を表示させてもよい。例えば、対象バッテリ１００の特定部位が画面上の特定位置に表示された状態で撮像されるようにするためのガイド表示などがなされてもよい。 The notification unit 470 transmits a notification for the user U to the user terminal device 500. For example, the notification unit 470 transmits a notification to the user U requesting the provision of appearance information about the target battery 100. For example, this notification may be sent when the user U supplies a used battery 100 to the battery sharing system 1 as an evaluation target, and the evaluation device 400 detects that appearance information about the battery 100 has not been acquired. In this case, if the user terminal device 500 has a camera function, the user U may capture an image of the appearance of the target battery 100 with the user terminal device 500 and transmit the image data to the evaluation device 400. When requesting the user U to capture an image of the target battery 100, the notification unit 470 may cause the user terminal device 500 to display information to assist the user in the image capture operation so that image data necessary for the state evaluation is acquired. For example, a guide display may be displayed so that an image is captured with a specific part of the target battery 100 displayed at a specific position on the screen.
　図５は、第１評価項目の一例を示す図である。図５は、第１評価項目として、（１）充放電可否、（２）ダメージ履歴、（３）充放電履歴有無、（４）劣化曲線分布、（５）引取時ＳＯＨ、に関する評価項目を例示するものである。各評価項目には、特性情報をもとに認識され得るバッテリ１００の電気的特性について、評価基準となる値と評価値との対応関係が定義されている。例えば、図５の例は、各評価項目の評価値を高評価から順にＡ～Ｅの５段階で表したものである。例えば、評価装置４００は、このような評価基準を示す評価基準情報４１５を予め記憶部４１０に保持しており、特性情報４１１を評価基準情報４１５と比較することにより、第１評価項目についての評価結果（第１評価結果）を得ることができる。 FIG. 5 is a diagram showing an example of the first evaluation item. FIG. 5 shows examples of the first evaluation items, including evaluation items related to (1) whether charging and discharging is possible, (2) damage history, (3) presence or absence of charging and discharging history, (4) deterioration curve distribution, and (5) SOH at time of collection. For each evaluation item, a correspondence between an evaluation criterion value and an evaluation value is defined for the electrical characteristics of the battery 100 that can be recognized based on the characteristic information. For example, the example of FIG. 5 shows the evaluation value of each evaluation item in five levels, A to E, in order from the highest evaluation. For example, the evaluation device 400 stores evaluation criterion information 415 indicating such evaluation criteria in advance in the storage unit 410, and can obtain an evaluation result (first evaluation result) for the first evaluation item by comparing the characteristic information 411 with the evaluation criterion information 415.
　（１）充放電可否
　図５の例において、「充放電可否」の評価項目は、バッテリ１００が充放電可能か否かにより対象バッテリ１００の劣化状態を評価するものである。図５は、充放電可能の評価値を最高評価の「Ａ」とし、充放電不可の評価値を最低評価の「Ｅ」として二段階評価とした例である。 (1) Possibility of charging/discharging In the example of Fig. 5, the evaluation item of "possibility of charging/discharging" evaluates the deterioration state of the target battery 100 based on whether the battery 100 can be charged/discharged. Fig. 5 shows an example of a two-stage evaluation in which the evaluation value of the battery being chargeable/dischargeable is the highest evaluation of "A" and the evaluation value of the battery not being chargeable/dischargeable is the lowest evaluation of "E."
　（２）ダメージ履歴
　図５の例において、「ダメージ履歴」の評価項目は、バッテリ１００におけるダメージ履歴の有無をもとに対象バッテリ１００の劣化状態を評価するものである。例えば、ダメージ履歴の有無は、バッテリ情報にダメージ発生を示すエラーコードが含まれるか否かによって判定可能である。これにより、評価部４６０は、例えば、バッテリ１００に対する衝撃の有無や、温度異常の有無、電流異常または電圧異常の有無などを認識することができる。図５は、ダメージ履歴が「無し」の場合の評価値を最高評価の「Ａ」とし、ダメージ履歴が「有り」の場合の評価値を最低評価の「Ｅ」として二段階評価とした例である。 (2) Damage History In the example of FIG. 5, the evaluation item of "damage history" evaluates the deterioration state of the target battery 100 based on the presence or absence of a damage history in the battery 100. For example, the presence or absence of a damage history can be determined based on whether or not an error code indicating the occurrence of damage is included in the battery information. This allows the evaluation unit 460 to recognize, for example, the presence or absence of an impact on the battery 100, the presence or absence of a temperature abnormality, the presence or absence of a current abnormality or a voltage abnormality, etc. FIG. 5 shows an example of a two-stage evaluation in which the evaluation value when there is "no damage history" is the highest evaluation of "A" and the evaluation value when there is "yes" to the damage history is the lowest evaluation of "E."
　（３）充放電履歴、劣化曲線分布、引取時ＳＯＨ
　図５の例において、「充放電履歴」は、バッテリ１００における充放電履歴の有無に基づく評価項目である。例えば、充放電履歴の有無は、バッテリ情報に含まれる電流値や電圧値の時系列データを参照することにより判定可能である。図５の例は、充放電時のＳＯＣ変化量が最大値のＸ１％以上である充放電履歴が有るか否かによって対象バッテリ１００の劣化状態を評価するものである。 (3) Charge/discharge history, deterioration curve distribution, SOH at time of collection
In the example of Fig. 5, "charge/discharge history" is an evaluation item based on the presence or absence of a charge/discharge history in the battery 100. For example, the presence or absence of a charge/discharge history can be determined by referring to time-series data of current values and voltage values included in the battery information. The example of Fig. 5 evaluates the deterioration state of the target battery 100 based on whether or not there is a charge/discharge history in which the amount of SOC change during charging/discharging is equal to or greater than X1% of the maximum value.
　また、図５の例において「劣化曲線分布」は、対象バッテリ１００の劣化度合いの分布に基づく評価項目である。ここで、劣化曲線は、対象バッテリ１００の劣化度合いの推移を示す曲線であり、バッテリ情報に含まれる各種測定値の時系列データによって認識され得る。評価部４６０は、対象バッテリ１００の劣化曲線を認識し、それと同等の劣化度合いを有するバッテリ１００が全体のどの程度の割合で分布しているか判定する。例えば、バッテリ１００が有する劣化曲線と、当該バッテリ１００の全体に占める分布の状況との対応関係を示す分布情報が基準情報４１５の一部として予め記憶部４１０に格納されている場合、評価部４６０は、対象バッテリ１００の劣化曲線と分布情報とを突き合わせることにより、対象バッテリ１００の分布状況を認識することができる。図５の例は、対象バッテリ１００の劣化曲線が「上位Ｙ１％」、「中間Ｙ２％」、「下位Ｙ３％」のうちのどの分布に該当するかによって対象バッテリ１００の劣化状態を評価するものである。なお、分布情報は、バッテリ共用システム１側に引き取られて評価対象となったバッテリ１００について得られたものであってもよいし、市場に投入された同種のバッテリ１００について得られたものであってもよい。 5, the "deterioration curve distribution" is an evaluation item based on the distribution of the degree of deterioration of the target battery 100. Here, the deterioration curve is a curve showing the transition of the degree of deterioration of the target battery 100, and can be recognized by time series data of various measured values included in the battery information. The evaluation unit 460 recognizes the deterioration curve of the target battery 100 and determines the percentage of the batteries 100 having the same degree of deterioration as the deterioration curve of the target battery 100 in the total distribution. For example, if distribution information showing the correspondence between the deterioration curve of the battery 100 and the distribution status of the entire battery 100 is stored in the storage unit 410 in advance as part of the reference information 415, the evaluation unit 460 can recognize the distribution status of the target battery 100 by matching the deterioration curve of the target battery 100 with the distribution information. The example of FIG. 5 evaluates the deterioration state of the target battery 100 depending on which distribution the deterioration curve of the target battery 100 falls into among "top Y1%", "middle Y2%", and "bottom Y3%". The distribution information may be obtained for batteries 100 that have been accepted by the battery sharing system 1 and are the subject of evaluation, or may be obtained for batteries 100 of the same type that have been released onto the market.
　また、図５の例において「引取時ＳＯＨ」は、対象バッテリ１００がバッテリ共用システム１側に引き取られたときのＳＯＨ（States Of Health）の値に基づく評価項目である。図５の例は、ＳＯＨの値が「Ｚ１％以上」、「Ｚ２％以上Ｚ１％未満」、「Ｚ３％以上Ｚ２％未満」、「Ｚ４％以上Ｚ３％未満」、「Ｚ４％未満」のうちのどれに該当するかによって劣化度合いを評価するものである。 In the example of Figure 5, "SOH at time of collection" is an evaluation item based on the value of the SOH (States of Health) when the target battery 100 is collected by the battery sharing system 1. The example of Figure 5 evaluates the degree of deterioration depending on whether the SOH value falls into one of the following categories: "Z1% or more," "Z2% or more but less than Z1%," "Z3% or more but less than Z2%," "Z4% or more but less than Z3%," or "Less than Z4%."
　図５は、これらの３つの評価項目の組み合わせによって評価値を判定する例を示すものである。例えば、「充放電履歴」についてＸ１％以上の充放電履歴を有し、「劣化曲線分布」が上位Ｙ１％に該当し、「引取時ＳＯＨ」がＺ１％以上である場合の評価値を最高評価の「Ａ」とするものである。このように、バッテリ１００の劣化状態の評価は、個別の評価項目ごとに評価値が判定されてもよいし、複数の評価項目の組み合わせに対して評価値が判定されてもよい。 FIG. 5 shows an example of determining the evaluation value by a combination of these three evaluation items. For example, the evaluation value is the highest evaluation of "A" when the "charge/discharge history" is X1% or more, the "deterioration curve distribution" is in the top Y1%, and the "SOH at time of collection" is Z1% or more. In this way, the evaluation of the degraded state of the battery 100 may be performed by determining an evaluation value for each individual evaluation item, or may be performed for a combination of multiple evaluation items.
　図６は、第２評価項目の一例を示す図である。上述のとおり、第２評価項目は、バッテリ１００の外観情報に基づく劣化度合いの評価項目である。図６は、対象バッテリ１００の少なくとも筐体部および接続部１４０に破損がないと認められる場合の評価値を最高評価の「Ａ」とし、対象バッテリ１００に少なくとも機能面に影響する破損はないと認められる場合の評価値を中評価の「Ｃ」とし、対象バッテリ１００に機能面に影響する破損があると認められる場合の評価値を最低評価の「Ｅ」とした例である。 FIG. 6 is a diagram showing an example of the second evaluation item. As described above, the second evaluation item is an evaluation item of the degree of deterioration based on the appearance information of the battery 100. FIG. 6 shows an example in which the evaluation value is set to the highest evaluation of "A" when it is determined that there is no damage to at least the casing and the connection part 140 of the target battery 100, the evaluation value is set to a medium evaluation of "C" when it is determined that there is no damage to the target battery 100 that affects at least the functionality, and the evaluation value is set to the lowest evaluation of "E" when it is determined that there is damage to the target battery 100 that affects the functionality.
　評価装置４００において、評価部４６０は、対象バッテリ１００の劣化状態について、図５および図６に例示したような外観情報および特性情報に基づく複数の評価項目の評価結果を総合的に評価して、最終的な評価結果を決定、出力するものである。 In the evaluation device 400, the evaluation unit 460 comprehensively evaluates the evaluation results of multiple evaluation items based on the appearance information and characteristic information as exemplified in Figures 5 and 6 regarding the deterioration state of the target battery 100, and determines and outputs the final evaluation result.
　［６．バッテリの劣化状態評価］
　図７は、評価装置４００が対象バッテリ１００の状態評価を行う処理の流れの一例を示すフローチャートである。まず、評価装置４００において、情報取得部４５０が、対象バッテリ１００のバッテリ情報をバッテリ交換ステーション３００から取得し、取得したバッテリ情報をもとに特性情報４１１を生成して記憶部４１０に格納する（ステップＳ１０１）。ここで、対象バッテリ１００は、例えば、利用者Ｕが利用者端末装置５００を介して評価装置４００に指定するものとする。 [6. Battery Degradation State Evaluation]
7 is a flowchart showing an example of a process flow in which the evaluation device 400 evaluates the state of the target battery 100. First, in the evaluation device 400, the information acquisition unit 450 acquires battery information of the target battery 100 from the battery exchange station 300, generates characteristic information 411 based on the acquired battery information, and stores it in the storage unit 410 (step S101). Here, the target battery 100 is assumed to be specified in the evaluation device 400 by, for example, a user U via a user terminal device 500.
　続いて、情報取得部４５０が、対象バッテリ１００の外観情報４１２を取得して記憶部４１０に格納する（ステップＳ１０２）。例えば、情報取得部４５０は、カメラＣから対象バッテリ１００の外観が撮像された画像データを取得し、対象バッテリ１００の識別情報と対応づけて外観情報４１２として管理する。 Then, the information acquisition unit 450 acquires the appearance information 412 of the target battery 100 and stores it in the storage unit 410 (step S102). For example, the information acquisition unit 450 acquires image data of the appearance of the target battery 100 from the camera C, and manages it as the appearance information 412 in association with the identification information of the target battery 100.
　続いて、評価部４６０が、ステップＳ１０１で取得された特性情報４１１に基づいて、対象バッテリ１００について、電気的特性に基づく第１評価項目についての評価を行い、その評価結果を第１評価情報４１３として記憶部４１０に保存する（ステップＳ１０３）。 Then, the evaluation unit 460 evaluates the target battery 100 for a first evaluation item based on electrical characteristics, based on the characteristic information 411 acquired in step S101, and stores the evaluation result in the memory unit 410 as first evaluation information 413 (step S103).
　例えば、評価部４６０は、図５で説明したように、電気的特性に基づく１以上の評価項目のそれぞれについて、対象バッテリ１００の状態が各評価項目で想定される候補値のいずれに該当するかを判定し、該当した候補値またはそれらの組み合わせに応じて評価値を決定する。 For example, as described in FIG. 5, the evaluation unit 460 determines whether the state of the target battery 100 corresponds to one of the candidate values assumed for each evaluation item based on the electrical characteristics, and determines the evaluation value according to the corresponding candidate value or a combination of the candidate values.
　また、一方で、ステップＳ１０２で取得された外観情報４１２は、評価者端末装置６００を介して評価者Ｖによって参照される。評価者Ｖは、外観情報４１２として管理されている対象バッテリ１００の画像データを参照し、対象バッテリ１００の外観情報に基づく第２評価項目についての評価を行い、その評価結果を評価装置４００に登録する（ステップＳ１０４）。一方、評価装置４００では、例えば、情報取得部４５０が評価者端末装置６００から第２評価項目についての評価結果を取得し、第２評価情報４１４として記憶部４１０に保存する。 On the other hand, the appearance information 412 acquired in step S102 is referenced by the evaluator V via the evaluator terminal device 600. The evaluator V references the image data of the target battery 100 managed as the appearance information 412, performs an evaluation of the second evaluation item based on the appearance information of the target battery 100, and registers the evaluation result in the evaluation device 400 (step S104). On the other hand, in the evaluation device 400, for example, the information acquisition unit 450 acquires the evaluation result of the second evaluation item from the evaluator terminal device 600 and stores it in the storage unit 410 as second evaluation information 414.
　例えば、評価者Ｖは、図６で説明したように、バッテリ１００について外観から認識され得る劣化要因に基づく評価項目について、対象バッテリ１００の状態が想定される候補値のいずれに該当するかを判定し、該当した候補値に応じて評価値を決定する。 For example, as described in FIG. 6, evaluator V determines which of the possible candidate values corresponds to the state of the target battery 100 for an evaluation item based on deterioration factors that can be recognized from the appearance of the battery 100, and determines the evaluation value according to the corresponding candidate value.
　続いて、評価部４６０は、ステップＳ１０３で取得した第１評価情報４１３およびステップＳ１０４で取得した第２評価情報４１４に基づいて、対象バッテリ１００の状態について総合的な評価結果を決定する（ステップＳ１０５）。評価部４６０は、対象バッテリ１００の状態について決定した総合的な評価結果を利用者Ｕの利用者端末装置５００に送信する（ステップＳ１０６）。 Then, the evaluation unit 460 determines an overall evaluation result for the state of the target battery 100 based on the first evaluation information 413 acquired in step S103 and the second evaluation information 414 acquired in step S104 (step S105). The evaluation unit 460 transmits the overall evaluation result determined for the state of the target battery 100 to the user terminal device 500 of the user U (step S106).
　例えば、評価部４６０は、第１評価結果および第２評価結果に含まれる複数の評価項目についての評価結果のうち、評価が最も低い評価項目の評価結果を、対象バッテリ１００についての総合的な評価結果とする。例えば、図５の例において、（１）「充放電可否」について「Ａ」と評価され、（２）「ダメージ履歴」について「Ｅ」と評価され、（３）「充放電履歴」、（４）「劣化曲線分布」、（５）「引取時ＳＯＨ」の組み合わせについて「Ｃ」と評価された場合、評価部４６０は、最も評価が低い評価「Ｅ」を対象バッテリ１００の総合的な評価として決定する。 For example, the evaluation unit 460 determines the evaluation result of the evaluation item with the lowest evaluation among the evaluation results for the evaluation items included in the first evaluation result and the second evaluation result as the overall evaluation result for the target battery 100. For example, in the example of FIG. 5, if (1) "Whether or not charging/discharging is possible" is evaluated as "A", (2) "Damage history" is evaluated as "E", and the combination of (3) "Charge/discharge history", (4) "Deterioration curve distribution", and (5) "SOH at time of collection" is evaluated as "C", the evaluation unit 460 determines the lowest evaluation "E" as the overall evaluation of the target battery 100.
　なお、評価部４６０は、バッテリ１００の市場における供給状況に応じて、対象バッテリ１００の評価結果を補正するように構成されてもよい。例えば、評価部４６０は、バッテリ１００が市場において供給過多であると判定された場合には、より厳しい方向に評価結果を補正してもよい。この場合、評価部４６０は、例えば、補正前における総合的な評価結果が「Ｄ」評価であった場合、「Ｅ」評価に補正してもよい。また、評価部４６０は、総合的な評価を行う前の第１評価結果または第２評価結果に対して同様の補正を行ってもよい。なお、この場合、バッテリ１００の市場における供給状況を示す情報は、予め記憶部４１０に保存されていてもよいし、対象バッテリ１００の評価実施時や、任意のタイミングで外部の装置から取得され、更新されてもよい。 The evaluation unit 460 may be configured to correct the evaluation result of the target battery 100 according to the supply situation of the battery 100 in the market. For example, if the evaluation unit 460 determines that the battery 100 is in oversupply in the market, the evaluation unit 460 may correct the evaluation result to a more severe direction. In this case, if the overall evaluation result before the correction is a "D" rating, the evaluation unit 460 may correct it to an "E" rating. The evaluation unit 460 may also make a similar correction to the first evaluation result or the second evaluation result before the overall evaluation is performed. In this case, the information indicating the supply situation of the battery 100 in the market may be stored in the storage unit 410 in advance, or may be obtained and updated from an external device when the evaluation of the target battery 100 is performed or at any time.
　このように構成された実施形態のバッテリ共用システム１によれば、評価装置４００が、バッテリ１００の評価において、電気的特性に基づく第１評価結果に加えて、バッテリ１００の外観から認識され得る劣化要因に基づく第２評価結果を取得し、これらを総合的に評価した結果を、対象バッテリ１００の最終的な評価結果として出力するので、バッテリ１００の残価値をより正確に評価することができる。 In the battery sharing system 1 of the embodiment configured in this manner, the evaluation device 400, in evaluating the battery 100, obtains a second evaluation result based on degradation factors that can be recognized from the external appearance of the battery 100 in addition to a first evaluation result based on the electrical characteristics, and outputs the result of a comprehensive evaluation of these as the final evaluation result of the target battery 100, so that the residual value of the battery 100 can be evaluated more accurately.
　＜変形例＞
　上記の実施形態では、評価者Ｖが評価者端末装置６００を用いて第２評価項目について評価を行い、その評価結果を評価装置４００に登録する場合について説明したが、第２評価項目についての評価は、評価装置４００によって機械的に行われてもよい。例えば、評価部４６０が、対象バッテリ１００について予め記憶されている基準画像と、外観情報４１２として取得された画像データとを比較し、その比較結果に基づいて第２評価結果を取得するように構成されてもよい。例えば、図６の例の場合、基準画像として、各候補値に対応する外観を有する各状態（ケースおよびコネクタに破損が無い状態、機能に影響する破損が無い状態、機能に影響する破損が有る状態）のバッテリ１００の画像データを取得しておき、対象バッテリ１００の外観を撮像した画像データを各基準画像と比較して各基準画像との類似度を計算し、最も類似度が高い基準画像に対応する候補値を採用するようにしてもよい。また、評価部４６０は、バッテリ１００の外観を撮像した画像データと各候補値との関係性を機械学習によって学習し、その学習結果として得られるニューラルネットワークなどの学習済みモデルを用いて、対象バッテリ１００の状態がどの候補値に該当するかを判定するように構成されてもよい。 <Modification>
In the above embodiment, the evaluator V uses the evaluator terminal device 600 to evaluate the second evaluation item and register the evaluation result in the evaluation device 400. However, the evaluation of the second evaluation item may be performed mechanically by the evaluation device 400. For example, the evaluation unit 460 may be configured to compare a reference image previously stored for the target battery 100 with image data acquired as the appearance information 412, and acquire the second evaluation result based on the comparison result. For example, in the case of the example of FIG. 6, image data of the battery 100 in each state (a state in which the case and connector are not damaged, a state in which there is no damage affecting the function, and a state in which there is damage affecting the function) having an appearance corresponding to each candidate value may be acquired as a reference image, and the image data obtained by capturing the appearance of the target battery 100 may be compared with each reference image to calculate the similarity with each reference image, and the candidate value corresponding to the reference image with the highest similarity may be adopted. In addition, the evaluation unit 460 may be configured to learn the relationship between image data capturing the exterior of the battery 100 and each candidate value through machine learning, and to determine which candidate value the state of the target battery 100 corresponds to using a trained model such as a neural network obtained as a result of the learning.
　上記の実施形態では、対象バッテリ１００がバッテリ共用サービスで使用されるバッテリ１００である場合を想定したが、これは、評価対象となるバッテリ１００がある程度共通しているほうが、劣化度合いに関する各種評価を行うのに都合がよいためである。例えば、評価対象となるバッテリ１００の種類が多い場合、その評価のために必要となる情報（例えば基準画像や評価基準情報など）の種類も多くなり煩雑である。しかしながら、評価対象となるバッテリ１００は必ずしも１種類である必要はない。対象バッテリ１００の種別を認識可能であり、評価に必要な情報が種別ごとに取得および管理される場合には、複数種類のバッテリ１００が評価対象とされてもよい。 In the above embodiment, it is assumed that the target battery 100 is a battery 100 used in a battery sharing service. This is because it is convenient to perform various evaluations regarding the degree of deterioration if the batteries 100 to be evaluated have a certain degree of commonality. For example, if there are many types of batteries 100 to be evaluated, the number of types of information required for the evaluation (e.g., reference images, evaluation reference information, etc.) also increases, making it cumbersome. However, the battery 100 to be evaluated does not necessarily have to be of one type. If it is possible to recognize the type of the target battery 100 and the information required for the evaluation is acquired and managed for each type, multiple types of batteries 100 may be evaluated.
　上記実施形態では、対象バッテリ１００の外観がカメラＣや利用者端末装置５００によって撮像される場合について説明したが、対象バッテリ１００の外観はバッテリ交換ステーション３００において撮像されてもよい。このために、バッテリ交換ステーション３００にカメラが備えられてもよい。この場合、バッテリ交換ステーション３００は、返却されたバッテリ１００の外観を撮像し、その画像データを評価装置４００に送信するように構成されてもよい。 In the above embodiment, a case has been described in which the external appearance of the target battery 100 is captured by the camera C or the user terminal device 500, but the external appearance of the target battery 100 may also be captured at the battery exchange station 300. For this purpose, the battery exchange station 300 may be equipped with a camera. In this case, the battery exchange station 300 may be configured to capture an image of the external appearance of the returned battery 100 and transmit the image data to the evaluation device 400.
　上記実施形態では、対象バッテリ１００についての総合的な評価結果が、利用者Ｕの利用者端末装置５００に出力される場合について説明したが、総合的な評価結果の出力先は評価者Ｖの評価者端末装置６００であってもよいし、バッテリ交換ステーション３００の表示部であってもよいし、評価装置４００の表示部であってもよい。また、上記実施形態では、利用者Ｕと評価者Ｖを別の人として説明したが、利用者Ｕと評価者Ｖは同じ人であってもよいし。 In the above embodiment, the case where the overall evaluation result for the target battery 100 is output to the user terminal device 500 of the user U has been described, but the output destination of the overall evaluation result may be the evaluator terminal device 600 of the evaluator V, the display unit of the battery exchange station 300, or the display unit of the evaluation device 400. Also, in the above embodiment, the user U and the evaluator V have been described as different people, but the user U and the evaluator V may be the same person.
　評価装置４００は、通知部４７０により利用者Ｕに対象バッテリ１００の撮像を依頼した場合、その依頼に応じて対象バッテリ１００の撮像を行って画像データを提供した利用者Ｕに対して所定のインセンティブを付与するインセンティブ付与部をさらに備えるように構成されてもよい。例えば、インセンティブ付与部は、バッテリ共用サービスにおいて使用できるポイントをインセンティブとして利用者Ｕに付与するものであってもよい。また、例えば、インセンティブ付与部は、バッテリ共用サービスの利用料を割り引く特典をインセンティブとして利用者Ｕに付与するものであってもよい。 The evaluation device 400 may be configured to further include an incentive granting unit that, when the notification unit 470 requests the user U to image the target battery 100, grants a predetermined incentive to the user U who images the target battery 100 in response to the request and provides the image data. For example, the incentive granting unit may grant points that can be used in the battery sharing service to the user U as an incentive. Also, for example, the incentive granting unit may grant a privilege of discounting the usage fee for the battery sharing service to the user U as an incentive.
　上記説明した実施形態は、以下のように表現することができる。
　バッテリの状態を評価するバッテリ状態評価装置が、
　コンピュータによって読み込み可能な命令（computer-readable instructions）を格納する１以上の記憶媒体（storage medium）と、
　前記１以上の記憶媒体に接続された１以上のプロセッサと、を備え、
　前記１以上のプロセッサが、前記コンピュータによって読み込み可能な命令を実行することにより、
　前記バッテリの電気的特性に関する第１情報と、前記バッテリの劣化の外的要因に関する第２情報とを取得し、
　前記取得部により取得された前記第１情報に基づく第１評価結果と、前記第２情報に基づく第２評価結果とに基づいて前記バッテリの状態について総合的な評価結果を出力する、
　バッテリ状態評価装置。 The above-described embodiment can be expressed as follows.
A battery state evaluation device for evaluating a state of a battery,
one or more storage media storing computer-readable instructions;
one or more processors coupled to the one or more storage media;
The one or more processors execute the computer readable instructions to
obtaining first information on an electrical characteristic of the battery and second information on an external cause of deterioration of the battery;
outputting a comprehensive evaluation result regarding the state of the battery based on a first evaluation result based on the first information acquired by the acquisition unit and a second evaluation result based on the second information;
Battery condition assessment device.
　以上、本発明を実施するための形態について実施形態を用いて説明したが、本発明はこうした実施形態に何等限定されるものではなく、本発明の要旨を逸脱しない範囲内において種々の変形および置換を加えることができる。 　Although the above describes the form for carrying out the present invention using an embodiment, the present invention is in no way limited to such an embodiment, and various modifications and substitutions can be made without departing from the spirit of the present invention.
１…バッテリ共用システム、１００…着脱式バッテリ、１２０…蓄電部、１３０…ＢＭＵ、１３１…測定センサ、１３２…記憶部、１４０…接続部、２００…電動バイク、１８…車両センサ、２０…ＨＭＩ、２２…ＧＮＳＳ受信機、２１０…バッテリ接続部、２２０…車両制御部、２３０…走行駆動力出力装置、３００…バッテリ交換ステーション、４００…評価装置、４１０…記憶部、４１１…特性情報、４１２…外観情報、４１３…第１評価情報、４１４…第２評価情報、４１５…評価基準情報、４２０…通信部、４４０…表示部、４５０…情報取得部、４６０…評価部、４７０…通知部、５００…利用者端末装置、６００…評価者端末装置 1...battery sharing system, 100...detachable battery, 120...power storage unit, 130...BMU, 131...measurement sensor, 132...storage unit, 140...connection unit, 200...electric bike, 18...vehicle sensor, 20...HMI, 22...GNSS receiver, 210...battery connection unit, 220...vehicle control unit, 230...driving force output device, 300...battery exchange station, 400...evaluation device, 410...storage unit, 411...characteristic information, 412...appearance information, 413...first evaluation information, 414...second evaluation information, 415...evaluation criteria information, 420...communication unit, 440...display unit, 450...information acquisition unit, 460...evaluation unit, 470...notification unit, 500...user terminal device, 600...evaluator terminal device

Claims (8)

  1. 　バッテリの状態を評価するバッテリ状態評価装置であって、
    　前記バッテリの電気的特性に関する第１情報と、前記バッテリの劣化の外的要因に関する第２情報とを取得する取得部と、
    　前記取得部により取得された前記第１情報に基づく第１評価結果と、前記第２情報に基づく第２評価結果とに基づいて前記バッテリの状態について総合的な評価結果を出力する評価部と、
    　を備えるバッテリ状態評価装置。     A battery state evaluation device for evaluating a battery state, comprising:
    an acquisition unit that acquires first information on electrical characteristics of the battery and second information on external factors of deterioration of the battery;
    an evaluation unit that outputs a comprehensive evaluation result regarding a state of the battery based on a first evaluation result based on the first information acquired by the acquisition unit and a second evaluation result based on the second information;
    A battery state assessment device comprising:
  2. 　前記評価部は、前記第１評価結果および前記第２評価結果に含まれる複数の評価項目についての評価結果のうち、評価が最も低い評価項目の評価結果を、前記バッテリについての総合的な評価結果とする、
    　請求項１に記載のバッテリ状態評価装置。     the evaluation unit determines an evaluation result of an evaluation item having a lowest evaluation among evaluation results for a plurality of evaluation items included in the first evaluation result and the second evaluation result as an overall evaluation result for the battery.
    The battery state evaluation device according to claim 1 .
  3. 　前記取得部は、前記バッテリの外観を撮像した画像データを前記第２情報として取得し、
    　前記評価部は、前記画像データに基づいて登録された第２評価結果と、前記バッテリの電気的特性に基づいて評価された第１評価結果とに基づいて前記総合的な評価結果を出力する、
    　請求項１に記載のバッテリ状態評価装置。     The acquisition unit acquires image data of an external appearance of the battery as the second information,
    the evaluation unit outputs the comprehensive evaluation result based on the second evaluation result registered based on the image data and the first evaluation result evaluated based on the electrical characteristics of the battery.
    The battery state evaluation device according to claim 1 .
  4. 　前記評価部は、予め記憶されている基準画像と、前記取得部により取得した前記画像データとを比較した結果に基づいて前記外的要因に関する第２評価結果を取得し、前記第２評価結果と、前記バッテリの電気的特性に基づいて評価された第１評価結果とに基づいて前記総合的な評価結果を出力する、
    　請求項３に記載のバッテリ状態評価装置。     the evaluation unit acquires a second evaluation result regarding the external factors based on a result of comparing a pre-stored reference image with the image data acquired by the acquisition unit, and outputs the comprehensive evaluation result based on the second evaluation result and a first evaluation result evaluated based on the electrical characteristics of the battery.
    The battery state evaluation device according to claim 3 .
  5. 　前記第２情報としての画像データが取得されていない場合、前記バッテリの利用者に前記画像データの取得を依頼する通知を行う通知部をさらに備える、
    　請求項３に記載のバッテリ状態評価装置。     a notification unit that notifies a user of the battery to request acquisition of the image data when the image data as the second information has not been acquired,
    The battery state evaluation device according to claim 3 .
  6. 　前記評価部は、前記バッテリの市場における供給状況に応じて前記評価結果を補正する、
    　請求項１に記載のバッテリ状態評価装置。     The evaluation unit corrects the evaluation result according to a supply status of the battery in the market.
    The battery state evaluation device according to claim 1 .
  7. 　バッテリの状態を評価するバッテリ状態評価装置が、
    　前記バッテリの電気的特性に関する第１情報と、前記バッテリの劣化の外的要因に関する第２情報とを取得し、
    　取得した前記第１情報および前記第２情報に基づいて前記バッテリの状態について総合的な評価結果を出力する、
    　バッテリ状態評価方法。     A battery state evaluation device for evaluating a state of a battery,
    obtaining first information on an electrical characteristic of the battery and second information on an external cause of deterioration of the battery;
    outputting a comprehensive evaluation result regarding the state of the battery based on the acquired first information and second information;
    Battery condition assessment method.
  8. 　バッテリの状態を評価するバッテリ状態評価装置に、
    　前記バッテリの電気的特性に関する第１情報と、前記バッテリの劣化の外的要因に関する第２情報とを取得させ、
    　取得した前記第１情報および前記第２情報に基づいて前記バッテリの状態について総合的な評価結果を出力させる、
    　プログラム。     A battery state evaluation device for evaluating a battery state,
    obtaining first information on an electrical characteristic of the battery and second information on an external cause of deterioration of the battery;
    outputting a comprehensive evaluation result regarding the state of the battery based on the acquired first information and second information;
    program.
PCT/JP2023/033200 2022-09-28 2023-09-12 Battery condition evaluation device, battery condition evaluation method, and program WO2024070662A1 (en)

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JP2004200012A (en) * 2002-12-19 2004-07-15 Matsushita Electric Ind Co Ltd Electrolyte leakage test method, test device, and battery
JP2013214264A (en) * 2012-03-30 2013-10-17 Yuji Hisamatsu Handling method for used automobile decomposed component
WO2021029031A1 (en) * 2019-08-14 2021-02-18 本田技研工業株式会社 Selecting device, selecting method, and program
WO2021149673A1 (en) * 2020-01-24 2021-07-29 株式会社Ｇｓユアサ Determination device, deterioration determination system, work assistance device, deterioration determination method, and computer program
CN113255746A (en) * 2021-05-14 2021-08-13 国网甘肃省电力公司经济技术研究院 New energy electric vehicle retired power battery grade screening method based on decision tree

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004200012A (en) * 2002-12-19 2004-07-15 Matsushita Electric Ind Co Ltd Electrolyte leakage test method, test device, and battery
JP2013214264A (en) * 2012-03-30 2013-10-17 Yuji Hisamatsu Handling method for used automobile decomposed component
WO2021029031A1 (en) * 2019-08-14 2021-02-18 本田技研工業株式会社 Selecting device, selecting method, and program
WO2021149673A1 (en) * 2020-01-24 2021-07-29 株式会社Ｇｓユアサ Determination device, deterioration determination system, work assistance device, deterioration determination method, and computer program
CN113255746A (en) * 2021-05-14 2021-08-13 国网甘肃省电力公司经济技术研究院 New energy electric vehicle retired power battery grade screening method based on decision tree

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