Information processing device, information processing method, and information processing system

Abstract

To reduce labor for visualizing the capacity deterioration state of a battery.SOLUTION: An information processing device 1 includes an acquisition unit 131 that acquires a battery usage history and a vehicle driving history in a battery-driven vehicle, an estimating unit 132 that estimates the battery capacity deterioration state on the basis of the usage history and driving history, and an output unit 133 that outputs information on the battery capacity deterioration state estimated by the estimation unit 132. The acquisition unit 131 further acquires weather information indicating the a weather condition of a location where the vehicle is located, and the estimation unit further estimates the capacity degradation state of the battery on the basis of the weather information.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to an information processing device, an information processing method, and an information processing system. [Background technology]

[0002] In recent years, the demand for battery-powered vehicles has increased. Patent Document 1 discloses a technology for displaying the degree of deterioration of a battery according to the number of times it has been charged and its internal resistance value. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2004-144628 A Summary of the Invention [Problem to be solved by the invention]

[0004] The capacity deterioration state of the battery can be visualized by installing the device according to Patent Document 1 in a vehicle. However, since the device needs to be installed in the vehicle, there is a problem in that installation and maintenance of the device are time-consuming.

[0005] Therefore, the present invention has been made in consideration of these points, and aims to provide, as an example, an information processing device, an information processing method, and an information processing system that can reduce the effort required to visualize the capacity degradation state of a battery. [Means for solving the problem]

[0006] An information processing device according to a first aspect of the present invention has an acquisition unit that acquires a usage history of a battery in a battery-powered vehicle and a driving history of the vehicle, an estimation unit that estimates a capacity degradation state of the battery based on the usage history and the driving history, and an output unit that outputs information regarding the capacity degradation state of the battery estimated by the estimation unit.

[0007] The acquisition unit may further acquire weather information indicating weather conditions at a location where the vehicle is located, and the estimation unit may further estimate a capacity degradation state of the battery based on the weather information.

[0008] The output unit may output warning information as information relating to the capacity degradation state of the battery when a numerical value based on the capacity degradation state of the battery estimated by the estimation unit exceeds a predetermined threshold.

[0009] The estimation unit may estimate a first state which is a current capacity degradation state of the battery and a second state which is a capacity degradation state of the battery at a predetermined point in the future, and the output unit may output warning information as information regarding the capacity degradation state of the battery when a difference between a numerical value based on the first state and a numerical value based on the second state exceeds a predetermined threshold.

[0010] The information processing device may further have a memory unit that stores information indicating the required capacity of the battery when the user uses the vehicle for a specified purpose, and the estimation unit may estimate a future capacity degradation state, which is the capacity degradation state of the battery after the user uses the vehicle for the specified purpose, and the output unit may output information indicating whether the user can use the vehicle for the specified purpose as information regarding the capacity degradation state of the battery based on the relationship between a numerical value based on the future capacity degradation state and a numerical value based on the required capacity of the battery stored in the memory unit.

[0011] An information processing method according to a second aspect of the present invention includes the steps of: acquiring a usage history of a battery in a battery-powered vehicle and a driving history of the vehicle, executing the steps of estimating a capacity degradation state of the battery based on the usage history and the driving history, and outputting information relating to the estimated capacity degradation state of the battery.

[0012] An information processing system according to a third aspect of the present invention is an information processing system having a vehicle powered by a battery and an information processing device that presents information indicating the capacity degradation state of the battery, wherein the information processing device has an acquisition unit that acquires a usage history of the battery in the vehicle and a driving history of the vehicle from the vehicle, an estimation unit that estimates the capacity degradation state of the battery based on the usage history and the driving history, and an output unit that transmits information regarding the capacity degradation state of the battery estimated by the estimation unit to the vehicle, and the vehicle has a display unit that displays the information regarding the capacity degradation state of the battery. Effect of the Invention

[0013] According to the present invention, for example, it is possible to reduce the effort required for visualizing the capacity degradation state of a battery. [Brief description of the drawings]

[0014] [Figure 1] FIG. 1 is a diagram for explaining an overview of an information processing system. [Diagram 2] FIG. 1 is a diagram illustrating a configuration of an information processing device. [Diagram 3] FIG. 2 illustrates an example of a configuration of a history management database. [Figure 4] 10 is a flowchart showing a flow of processing in the information processing device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] [Outline of Information Processing System S] FIG. 1 is a diagram for explaining an overview of an information processing system S. The information processing system S is a system used to present the state of a battery B installed in a vehicle V to a user. The user includes a manager of the vehicle V and a user of the vehicle V. The manager of the vehicle V is, for example, a leasing company, but is not limited to this, and may be an individual or corporation that introduces and uses the vehicle V from the leasing company, a rental company, a purchaser who purchases the vehicle V, etc. The information processing system S has a vehicle V and an information processing device 1.

[0016] The vehicle V is an electric vehicle powered by a battery B such as a lithium ion secondary battery. The vehicle V has various sensors for collecting historical information regarding the use of the vehicle V, and a communication unit for connecting to the network N, and transmits the historical information collected by the various sensors via the communication unit to an information processing device 1 described below.

[0017] The history information includes the usage history of battery B and the driving history of vehicle V. The usage history of battery B includes, for example, information indicating the charging and discharging cycles of battery B, the amount of power consumed, and information such as electricity cost. The information indicating the charging and discharging cycles of battery B includes, for example, the discharging period and the charging period, but is not limited to this and may further include the amount of power discharged and the amount of power charged. The usage history of battery B may further include the charging method (for example, quick charging or normal charging).

[0018] The driving history of the vehicle V is, for example, information indicating the travel route of the vehicle V based on position information. The driving history of the vehicle V may further include speed information indicating the speed at which the vehicle V traveled and the number of times the vehicle V suddenly accelerated. The information indicating the route of the vehicle V may be generated by the vehicle V based on the position information, or may be generated based on the position information acquired from the vehicle V by the information processing device 1.

[0019] The vehicle V further includes a display unit (for example, a car navigation display) that displays various information. The vehicle V displays information acquired from the information processing device 1 via the communication unit, for example, on the display unit.

[0020] The information processing device 1 is a computer that presents information related to the capacity degradation state of battery B (hereinafter referred to as "status-related information"). The status-related information may be information indicating the capacity degradation state of battery B (e.g., the degradation rate or maximum capacity of battery B), or may be information expressing the capacity degradation state of battery B with a predetermined index (e.g., an evaluation expressed by alphabets or numbers). The vehicle V is provided with vehicle identification information for identifying the vehicle V, and the information processing device 1 manages the history information acquired from the vehicle V in association with the vehicle identification information of the vehicle V.

[0021] The information processing device 1 may be provided outside the vehicle V (for example, in a company of an administrator of the information processing device 1) or inside the vehicle V. When the information processing device 1 is provided inside the vehicle V, it may be a device that is physically connected to the vehicle V, or it may be a terminal that is not physically connected to the vehicle V (for example, a smartphone, a tablet terminal, etc.).

[0022] In recent years, vehicles V having a communication unit as described above, so-called connected cars, have appeared, and various manufacturers are developing these products. In connected cars, various information can be collected in real time, so it is desirable to estimate the capacity degradation state of the battery B using such information to present to the user. Therefore, the information processing system S estimates the capacity degradation state of the battery B based on history information on the use of the vehicle V, which is information that can be obtained from the vehicle V in real time.

[0023] Specifically, first, when the information processing device 1 acquires history information from the vehicle V, it estimates the capacity degradation state of battery B based on the acquired history information. Although details will be described later, the information processing device 1 estimates the capacity degradation state of battery B based on the relationship between how battery B is used, indicated by the history information, and the degradation characteristics of battery B. Then, the information processing device 1 outputs state-related information based on the estimated capacity degradation state of battery B.

[0024] In this way, the information processing system S can visualize the capacity degradation state of the battery B. This allows the information processing system S to omit the installation of a device for visualizing the capacity degradation state of the battery B and the maintenance work of the device. As a result, the information processing system S can reduce the effort required by the user to visualize the capacity degradation state of the battery B.

[0025] Furthermore, by outputting the capacity degradation state of battery B estimated by the information processing system S using information obtainable in real time from vehicle V, the user can grasp the change in the capacity degradation state of battery B. For example, the manager of vehicle V can determine whether it is better to replace battery B with a new battery B based on the capacity degradation state of battery B. Also, for example, the user of vehicle V can determine whether to continue using vehicle V or to switch to another vehicle V based on the capacity degradation state of battery B. As a result, the user can easily manage vehicle V. The configuration of the information processing device 1 will be described below.

[0026] [Configuration of information processing device 1] 2 is a diagram showing a configuration of the information processing device 1. The information processing device 1 has a communication unit 11, a storage unit 12, and a control unit 13. The control unit 13 has an acquisition unit 131, an estimation unit 132, and an output unit 133.

[0027] The communication unit 11 is an interface for connecting to the network N, and is configured to include, for example, a LAN (Local Area Network) controller. The storage unit 12 is a storage medium such as a ROM (Read Only Memory), a RAM (Random Access Memory), and a hard disk. The storage unit 12 stores a program executed by the control unit 13. The storage unit 12 stores a history management database that manages history information of the vehicle V.

[0028] Fig. 3 is a diagram showing an example of the configuration of a history management database. The history management database shown in Fig. 3 stores vehicle identification information, an acquisition date, a usage history of battery B (discharging and charging period, discharging and charging, charging method, power consumption, and electricity cost), and a driving history of vehicle V in association with each other. The acquisition date is the date on which the history information was acquired, but is not limited to this and may be the date and time when the history information was acquired. The discharging and charging period indicates the period of discharging or the period of charging. The charging method is quick charging and normal charging, but may also include charging by regenerative braking as shown in Fig. 3.

[0029] 2, the control unit 13 is, for example, a CPU (Central Processing Unit). The control unit 13 executes a program stored in the storage unit 12 to function as an acquisition unit 131, an estimation unit 132, and an output unit 133.

[0030] The acquisition unit 131 acquires history information including a usage history of the battery B in the vehicle V and a driving history of the vehicle V from the vehicle V via the communication unit 11. Specifically, the acquisition unit 131 acquires the history information of the vehicle V in association with vehicle identification information corresponding to the vehicle V. The acquisition unit 131 acquires the history information from the vehicle V, for example, at predetermined intervals (for example, every hour, every day, etc.). Upon acquiring the history information, the acquisition unit 131 associates the vehicle identification information, the history information, and the acquisition date on which the history information was acquired, and stores them in the history management database.

[0031] The estimation unit 132 estimates the capacity degradation state of battery B based on the history information. Specifically, the estimation unit 132 estimates the capacity degradation state of battery B based on the history information including the history information acquired by the acquisition unit 131 and stored in the history management database in association with the vehicle identification information acquired by the acquisition unit 131. The estimation unit 132 estimates the capacity degradation state of battery B based on, for example, all the history information acquired from vehicle V by the acquisition unit 131 in the past.

[0032] For example, the estimation unit 132 estimates a capacity degradation state indicating a higher degree of degradation of battery B as the amount of power consumption included in the usage history of battery B is larger, and estimates a capacity degradation state indicating a lower degree of degradation of battery B as the amount of power consumption is smaller. In addition, the estimation unit 132 estimates a capacity degradation state indicating a higher degree of degradation of battery B as the power consumption included in the usage history of battery B is smaller, and estimates a capacity degradation state indicating a lower degree of degradation of battery B as the power consumption is larger.

[0033] The estimation unit 132 estimates the capacity degradation state of battery B based on the relationship between how battery B is used, as indicated by the history information, and the degradation characteristics of battery B. Battery B has an appropriate temperature range (for example, a range from 20 degrees to 30 degrees), and when the temperature of battery B exceeds at least the appropriate temperature range, degradation of battery B progresses. For example, the more the number of discharge and charge cycles of battery B, i.e., the higher the density of discharge and charge in a certain period of time, the higher the degree of heat generation may be.

[0034] The estimation unit 132 may estimate the capacity degradation state of battery B based on such degradation characteristics of battery B. Specifically, the estimation unit 132 estimates the capacity degradation state of battery B based on the number of discharge and charge cycles indicated by the usage history of battery B. For example, the estimation unit 132 estimates a capacity degradation state indicating a higher degree of degradation of battery B as the number of discharge and charge cycles increases, and estimates a capacity degradation state indicating a lower degree of degradation of battery B as the number of discharge and charge cycles decreases.

[0035] The higher the power output of battery B, the higher the degree of heat generation may be. For example, when battery B is charged by quick charging, the degree of heat generation may be higher when battery B is charged by normal charging. Therefore, the estimation unit 132 estimates the capacity degradation state of battery B based on the charging method included in the usage history of battery B. For example, in the charging method included in the usage history of battery B, the estimation unit 132 estimates a capacity degradation state indicating a higher degree of degradation of battery B when the number of quick charging operations is greater, and estimates a capacity degradation state indicating a lower degree of degradation of battery B when the number of quick charging operations is smaller.

[0036] To go into a little more detail, factors that affect the temperature state that leads to battery degradation include, for example, outside air temperature information (high or low temperature) rather than the battery temperature itself, speed information (high or low speed, and the duration) and sudden acceleration information (whether there was sudden acceleration), and road inclination information (continuous uphill, frequent), etc., as driving modes. For example, when driving on a general road and when driving on a highway, the former has a larger fluctuation in speed, the amount of output power is larger, and the degree of heat generation may be higher. Also, for example, when the road on which the vehicle is traveling is uphill, the former may output a larger amount of power and the degree of heat generation may be higher than when the road on which the vehicle is traveling is flat or downhill. Also, for example, when driving at a high speed and when driving at a low speed, the former may output a larger amount of power and the degree of heat generation may be higher. Also, for example, when the vehicle V accelerates suddenly, a large amount of power is output, so if sudden acceleration occurs frequently, the degree of heat generation may be higher. Therefore, the estimation unit 132 may estimate the capacity degradation state of battery B based on at least one of the driving route indicated by the driving history of vehicle V, the speed information included in the driving history of vehicle V, and the number of times vehicle V has suddenly accelerated, which are included in the driving history of vehicle V.

[0037] For example, the estimation unit 132 estimates the capacity degradation state of the battery B such that the degree of degradation of the battery B increases as the ratio of driving on general roads decreases and the ratio of driving on expressways increases in the driving route, and the degree of degradation of the battery B decreases as the ratio of driving on general roads increases and the ratio of driving on expressways decreases in the driving route. In addition, the estimation unit 132 estimates the capacity degradation state of the battery B such that the degree of degradation of the battery B increases as the distance traveled uphill increases in the driving route, and the degree of degradation of the battery B decreases as the distance traveled uphill decreases in the driving route. In addition, the estimation unit 132 estimates the capacity degradation state of the battery B such that the degree of degradation of the battery B increases as the time traveled at high speed increases, and the degree of degradation of the battery B decreases as the time traveled at high speed decreases. Furthermore, the estimation unit 132 estimates the capacity degradation state of battery B such that the greater the number of times the vehicle V has suddenly accelerated, the higher the degree of degradation of battery B, and estimates the capacity degradation state of battery B such that the smaller the number of times the vehicle V has suddenly accelerated, the lower the degree of degradation of battery B. In this way, the information processing device 1 can improve the accuracy of estimating the capacity degradation state of battery B.

[0038] The estimation unit 132 may estimate the capacity degradation state of battery B using a machine learning model. The machine learning model is, for example, a model trained with teacher data including history information and information indicating the capacity degradation state of battery B when the vehicle V is used in a manner indicated by the history information, and outputs information indicating the capacity degradation state of battery B when the history information is input. The estimation unit 132 estimates the capacity degradation state of battery B by, for example, inputting the history information into the machine learning model to obtain information indicating the capacity degradation state of battery B output by the machine learning model. The estimation unit 132 executes a process of estimating the capacity degradation state of battery B, for example, every time the acquisition unit 131 acquires history information.

[0039] As described above, the higher the temperature, the higher the degree of heat generation of battery B may be, so the estimation unit 132 may estimate the capacity degradation state of battery B further based on weather information. Specifically, first, the acquisition unit 131 further acquires weather information indicating the weather conditions at the location where the vehicle V is present. Then, the estimation unit 132 estimates the capacity degradation state of battery B based on the history information and the weather information.

[0040] For example, the estimation unit 132 estimates the capacity degradation state of battery B such that the longer the period during which the temperature at the location of vehicle V, which is indicated by the weather information, exceeds the appropriate temperature range for battery B, the higher the degree of degradation of battery B, and the shorter the period, the lower the degree of degradation of battery B. In this way, the information processing device 1 can improve the accuracy of estimating the capacity degradation state of battery B.

[0041] The output unit 133 outputs state-related information based on the capacity deterioration state of the battery B estimated by the estimation unit 132. Specifically, the output unit 133 presents the state-related information to a user via the communication unit 11. For example, the output unit 133 transmits the state-related information to a terminal (not shown) used by an administrator of the vehicle V via the communication unit 11. The output unit 133 may transmit the state-related information to the vehicle V via the communication unit 11 and cause the display unit of the vehicle V to display the information.

[0042] The information processing device 1 may output warning information when the degree of deterioration of battery B is high. The warning information is, for example, information indicating that deterioration of battery B is progressing. Specifically, the output unit 133 outputs the warning information as state-related information when a numerical value based on the capacity deterioration state of battery B estimated by the estimation unit 132 exceeds a predetermined threshold. The numerical value based on the capacity deterioration state of battery B is, for example, the rate at which battery B has deteriorated. The predetermined threshold is, for example, set in advance in the information processing device 1.

[0043] The output unit 133 may output, together with the warning information, information on factors that have increased the degree of deterioration of battery B as the state-related information. For example, first, the estimation unit 132 estimates the capacity deterioration state of battery B based on a plurality of deterioration factors that may cause deterioration of battery B, including the number of charge / discharge cycles, the number of quick charges in the charging method, the percentage of driving on expressways, the amount of power consumption, and the electricity cost. Then, the output unit 133 outputs information on factors that have caused a relatively high degree of deterioration of battery B among the plurality of factors.

[0044] For example, the output unit 133 outputs information regarding the factor that has caused the highest degree of deterioration of the battery B among the multiple factors. For example, the output unit 133 outputs information regarding the above factors to the user of the vehicle V, such as information showing advice for reducing the degree of deterioration of the battery B (for example, information recommending that the charging method be normal charging or that sudden acceleration be suppressed).

[0045] The output unit 133 may output warning information when the deterioration of the battery B is faster than predicted. Specifically, first, the estimation unit 132 estimates a first state, which is the current capacity deterioration state of the battery B, and a second state, which is the capacity deterioration state of the battery B at a predetermined time in the future. Then, the output unit 133 outputs warning information as state-related information when the difference between the numerical value based on the first state and the numerical value based on the second state exceeds a predetermined threshold. In this way, the information processing device 1 can make the user recognize that the degree of deterioration of the battery B is high.

[0046] Incidentally, when the lease period of the vehicle V has elapsed, the user needs to decide whether or not to continue the lease of the vehicle V. In an electric vehicle, the degree of deterioration of the battery B can be an important factor in deciding whether or not to continue the lease. Therefore, the information processing device 1 may output, as status-related information, information that allows the user to decide whether or not to re-lease the vehicle V.

[0047] For example, the storage unit 12 stores information indicating the required capacity of the battery B when a user (a user of the vehicle V) uses the vehicle V for a predetermined purpose. The predetermined purpose may be, for example, use as a business vehicle in a company, use as a shuttle vehicle, or use as a means of transportation for travel in a private home.

[0048] In this case, first, the estimation unit 132 estimates a future capacity degradation state, which is a capacity degradation state of the battery B after the user of the vehicle V uses the vehicle V for a predetermined purpose. Then, the output unit 133 outputs information indicating whether the user of the vehicle V can use the vehicle V for the predetermined purpose as state-related information, based on the relationship between a numerical value based on the future capacity degradation state and a numerical value based on the required capacity of the battery B stored in the storage unit 12.

[0049] For example, when the numerical value based on the future capacity degradation state is smaller than the numerical value based on the required capacity of battery B stored in memory unit 12, output unit 133 outputs information indicating that the user can use vehicle V for a predetermined purpose, and when the numerical value based on the future capacity degradation state is larger than the numerical value based on the required capacity of battery B stored in memory unit 12, output unit 133 outputs information indicating that the user cannot use vehicle V for a predetermined purpose. In this way, the user can easily determine whether or not to continue leasing vehicle V.

[0050] [Processing of information processing device 1] Next, a description will be given of the flow of processing by the information processing device 1. Fig. 4 is a flowchart showing the flow of processing by the information processing device 1. This processing starts when the acquisition unit 131 acquires history information from the vehicle V (S1).

[0051] The estimation unit 132 estimates the capacity degradation state of battery B based on the history information including the history information acquired by the acquisition unit 131 and stored in the history management database in association with the vehicle identification information acquired by the acquisition unit 131 in association with the historical information (S2). Then, the output unit 133 outputs state-related information based on the capacity degradation state of battery B estimated by the estimation unit 132 (S3).

[0052] [Effects of this embodiment] As described above, the information processing device 1 estimates the capacity degradation state of battery B based on the history information acquired from vehicle V, and outputs state-related information based on the estimated capacity degradation state of battery B. In this way, the information processing device 1 can visualize the capacity degradation state of battery B. This allows the information processing device 1 to save the installation of a device for visualizing the capacity degradation state of battery B and the maintenance work of the device. As a result, the information processing system S can reduce the effort required by the user to visualize the capacity degradation state of battery B.

[0053] In addition, the information processing device 1 outputs the capacity degradation state of the battery B estimated using information obtainable in real time from the vehicle V, so that the user can grasp the change in the capacity degradation state of the battery B. As a result, the user can easily manage the vehicle V.

[0054] Although the present invention has been described above using the embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments, and various modifications and changes are possible within the scope of the gist of the present invention. For example, all or part of the device can be configured by distributing or integrating functionally or physically in any unit. In addition, new embodiments resulting from any combination of multiple embodiments are also included in the embodiments of the present invention. The effect of the new embodiment resulting from the combination combines the effect of the original embodiment. [Explanation of symbols]

[0055] 1. Information processing device 11 Communications Department 12 Storage section 13 Control section 131 Acquisition Department 132 Estimation Department 133 Output section B. Battery V Vehicle S Information Processing System

Claims

1. a storage unit that stores, for each application in which a battery-driven vehicle is used, information indicating a required capacity of the battery that is required when the vehicle is used for that application; An acquisition unit that acquires a usage history of the battery in the vehicle and a driving history of the vehicle; an estimation unit that estimates a future capacity degradation state of the battery, which is a capacity degradation state of the battery after a user has used the vehicle for a predetermined purpose, as a capacity degradation state of the battery based on the usage history and the driving history; an output unit that outputs, as information regarding the capacity degradation state of the battery estimated by the estimation unit, information indicating that the user can use the vehicle for the specified purpose when a numerical value based on a future capacity degradation state of the battery is smaller than a numerical value based on the required capacity of the battery corresponding to the specified purpose among the information indicating the required capacity of the battery stored in the memory unit, and outputs information indicating that the user cannot use the vehicle for the specified purpose when the numerical value based on the future capacity degradation state of the battery is larger than a numerical value based on the required capacity of the battery corresponding to the specified purpose among the information indicating the required capacity of the battery stored in the memory unit; An information processing device having the above configuration.

2. The acquisition unit further acquires meteorological information indicating a weather condition at a location where the vehicle is located, The estimation unit further estimates a capacity deterioration state of the battery based on the weather information. The information processing device according to claim 1 .

3. the output unit outputs warning information as information regarding the capacity degradation state of the battery when a numerical value based on the capacity degradation state of the battery estimated by the estimation unit exceeds a predetermined threshold value.

3. The information processing device according to claim 1 or 2.

4. The estimation unit estimates a first state which is a current capacity degradation state of the battery and a second state which is a capacity degradation state of the battery at a predetermined time in the future; The output unit outputs warning information as information regarding a capacity degradation state of the battery when a difference between the value based on the first state and the value based on the second state exceeds a predetermined threshold. The information processing device according to claim 1 .

5. A system for controlling a vehicle powered by a battery, the system being executed by a computer having a memory unit that stores, for each application in which the vehicle is used, information indicating a required capacity of the battery that would be required if the vehicle were used for that application. acquiring a usage history of the battery in the vehicle and a driving history of the vehicle; estimating a future capacity degradation state of the battery, which is a capacity degradation state of the battery after a user uses the vehicle for a predetermined purpose, as a capacity degradation state of the battery based on the usage history and the driving history; outputting information indicating that the user can use the vehicle for the specified purpose when a numerical value based on the future capacity degradation state of the battery is smaller than a numerical value based on the required capacity of the battery corresponding to the specified purpose among the information indicating the required capacity of the battery stored in the memory unit, as information regarding the estimated capacity degradation state of the battery; and outputting information indicating that the user cannot use the vehicle for the specified purpose when the numerical value based on the future capacity degradation state of the battery is larger than a numerical value based on the required capacity of the battery corresponding to the specified purpose among the information indicating the required capacity of the battery stored in the memory unit; An information processing method comprising the steps of:

6. An information processing system having a vehicle driven by a battery and an information processing device that presents information indicating a capacity deterioration state of the battery, The information processing device includes: a storage unit that stores, for each use of the vehicle, information indicating a required capacity of the battery that is required when the vehicle is used for that use; an acquisition unit that acquires a usage history of the battery in the vehicle and a driving history of the vehicle from the vehicle; an estimation unit that estimates a future capacity degradation state of the battery, which is a capacity degradation state of the battery after a user has used the vehicle for a predetermined purpose, as a capacity degradation state of the battery based on the usage history and the driving history; an output unit that outputs information indicating that the user can use the vehicle for the specified purpose when a numerical value based on a future capacity degradation state of the battery, as information regarding the capacity degradation state of the battery estimated by the estimation unit, is smaller than a numerical value based on the required capacity of the battery corresponding to the specified purpose among the information indicating the required capacity of the battery stored in the memory unit, and transmits information to the vehicle indicating that the user cannot use the vehicle for the specified purpose if the numerical value based on the future capacity degradation state of the battery is larger than a numerical value based on the required capacity of the battery corresponding to the specified purpose among the information indicating the required capacity of the battery stored in the memory unit; having The vehicle is A display unit that displays information regarding a capacity deterioration state of the battery. Information processing system.

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