Battery secondary utilization support device, in-vehicle terminal, user terminal, battery secondary utilization support system, and battery secondary utilization support method

Abstract

The present invention provides a battery secondary use assistance device for assisting a user of a vehicle equipped with a secondary battery in providing the secondary battery for secondary use. Specifically, this battery secondary use assistance device comprises: a degradation history data generation unit that acquires use tendency information relating to the vehicle or secondary battery via communication, and uses the acquired use tendency information to generate degradation history data indicating progression of degradation of the secondary battery from a predetermined reference time to the present; a battery state data generation unit that uses the degradation history data to calculate a predicted battery state quantity representing the state of the secondary battery at a predetermined initial use end time or secondary use start time, and generates predicted battery state data including the predicted battery state quantity; a user-provided data generation unit that generates user-provided data on the basis of the predicted battery state data; and a data output unit that outputs the user-provided data to a user terminal operated by the user and / or an in-vehicle terminal mounted on the vehicle.

Description

[Technical Field]

[0001] The present invention relates to a battery secondary utilization support device, an in-vehicle terminal, a user terminal, a battery secondary utilization support system, and a battery secondary utilization support method. [Background technology]

[0002] In recent years, systems have been developed to allow users of electric vehicles (EVs) or hybrid electric vehicles (HEVs) to sell the rechargeable batteries installed in their vehicles when they relinquish them, and provide them to designated reuse destinations (secondary use destinations). In this system, the secondary use destination (such as for stationary power supply or mobile power supply) is determined based on the state of the rechargeable battery at the time when its primary use as an in-vehicle battery ends.

[0003] As described above, by providing the rechargeable batteries used in vehicles after their primary use to designated secondary users, the need for storage power in each secondary use application can be met while reducing the amount of rechargeable batteries that are discarded. For this reason, it is desirable to widely disseminate the system for supplying the above-mentioned rechargeable batteries used in vehicles to secondary users.

[0004] One way to promote the system is to encourage primary users, such as vehicle users, to provide (sell) secondary batteries to secondary users. From this perspective, a technology is known that estimates the degradation state of the secondary battery, which is directly related to the battery's value when it is provided to a secondary user.

[0005] WO2021 / 193006A1 discloses a battery reuse support system that estimates the battery's degradation state at the time of planned sale, based on the battery's degradation state during vehicle use (primary use), determines multiple product types (each secondary use destination) in which the battery can be installed based on the estimated degradation state, calculates the transaction price (predicted selling price) for each product type, and notifies the user. [Overview of the Initiative]

[0006] However, WO2021 / 193006A1 calculates the battery degradation state at the planned sale date based on a predetermined, uniform degradation curve. As a result, the estimated battery degradation state obtained may deviate from the actual value, and the reliability of the predicted sale price ultimately notified to the user may not be ensured.

[0007] In particular, the period from the time when users are notified of the predicted resale price while they are still using their vehicles until the batteries are removed from the vehicles and provided to secondary users is expected to span several years to a decade. Therefore, there are concerns that the estimated battery degradation state, calculated based on a uniform degradation curve, will deviate significantly from the actual value, leading to a substantial decrease in the reliability of the predicted resale price notified to users. As a result, the effectiveness of encouraging users to provide secondary batteries to secondary users may be diminished.

[0008] Therefore, the present invention aims to more effectively encourage users to provide secondary batteries to secondary use sites, thereby reducing the amount of battery waste by encouraging further secondary use.

[0009] According to one aspect of the present invention, a battery secondary utilization support device is provided that assists users of vehicles equipped with secondary batteries in providing secondary batteries for secondary use. This battery secondary utilization support device includes: a degradation history data generation unit that generates degradation history data showing the degradation progression of a secondary battery from a predetermined reference time to the present based on usage trend information of the vehicle or secondary battery; a battery state data generation unit that calculates a predicted battery state amount representing the state of the secondary battery at a predetermined time of primary use completion or secondary use commencement based on the degradation history data and generates predicted battery state data including the predicted battery state amount; a user-provided data generation unit that generates user-provided data based on the predicted battery state data; and a data output unit that outputs the user-provided data to a user terminal operated by the user and / or an in-vehicle terminal installed in the vehicle. [Brief explanation of the drawing]

[0010] [Figure 1]Figure 1 is a block diagram showing the main configuration of the battery secondary utilization support system common to each embodiment. [Figure 2] Figure 2 is a block diagram showing the details of each component of the battery secondary utilization support system according to the first embodiment. [Figure 3] Figure 3 is a flowchart illustrating the details of the processing performed by the battery secondary utilization support device of the first embodiment. [Figure 4A] Figure 4A is a flowchart illustrating the details of predictive battery state data generation according to the first embodiment. [Figure 4B] Figure 4B illustrates an example of the calculation results for predicted battery state variables. [Figure 4C] Figure 4C shows an example of a predicted degradation profile tailored to each user. [Figure 5] Figure 5 is a flowchart illustrating the details of user-provided data generation according to the first embodiment. [Figure 6] Figure 6 is a block diagram showing the details of each component of the battery secondary utilization support system according to the second embodiment. [Figure 7] Figure 7 is a flowchart illustrating the details of the processing performed by the battery secondary utilization support device of the second embodiment. [Figure 8] Figure 8 is a flowchart illustrating the details of predictive battery state data generation according to the second embodiment. [Figure 9] Figure 9 is a flowchart illustrating the details of user-provided data generation according to the second embodiment. [Figure 10] Figure 10 shows an example of how user-provided data is displayed according to the second embodiment. [Figure 11] Figure 11 shows an example of how user-provided data is displayed according to the third embodiment. [Figure 12] Figure 12 shows an example of calculating the predicted selling price according to the fourth embodiment. [Figure 13] Figure 13 shows an example of how user-provided data is displayed according to the fourth embodiment. [Modes for carrying out the invention]

[0011] The embodiments of the present invention will be described below with reference to the drawings.

[0012] [First Embodiment] Figure 1 is a diagram illustrating the configuration of the battery secondary utilization support system 10 according to this embodiment. Figure 2 is a block diagram detailing each component of the battery secondary utilization support system 10. The battery secondary utilization support system 10 of this embodiment is configured as a system for generating information to encourage each user U (U1, U2, ... Un) of each vehicle V (V1, V2... Vn in Figure 1) equipped with an on-board secondary battery to provide secondary utilization (reuse) of the secondary battery, and for providing said information to each user U. In this embodiment, each vehicle V is assumed to be an electric vehicle or hybrid vehicle equipped with an on-board secondary battery.

[0013] In particular, the battery secondary utilization support system 10 mainly comprises a battery secondary utilization support device 20, user terminals UT (UT1, UT2...UTn) used for operation by each user U, and on-board terminals VT (VT1, VT2...VTn) installed in each vehicle V.

[0014] The battery secondary utilization support device 20 is connected to user terminals T and in-vehicle terminals VT via a predetermined network 100, enabling mutual communication. The network 100 consists of various hardware and communication protocols that enable communication between the battery secondary utilization support device 20, each user terminal UT, and each in-vehicle terminal VT. In particular, the communication function between each user terminal UT and the battery secondary utilization support device 20 is realized by various communication protocols such as TCP / IP for wide-area network communication. Furthermore, the communication function between the in-vehicle terminal VT and the battery secondary utilization support device 20 is realized by various communication protocols for realizing so-called telematics (mobile communication systems).

[0015] The following describes the details of each component of the battery secondary utilization support system 10. In the following, to clarify that the description represents any one of the users U (U1, U2...Un), the sign "k" (k = any integer between 1 and n) will be used as appropriate. The same applies to each user terminal UT (UT1, UT2...UTn), each vehicle V (V1, V2...Vn), and the in-vehicle terminal VT (VT1, VT2...VTn).

[0016] <Battery secondary usage support device 20> The battery secondary utilization support device 20 is comprised of a computer equipped with various arithmetic / control devices, storage devices, and input / output devices, and which stores a program for executing desired arithmetic and control processing in its storage device. The battery secondary utilization support device 20 receives a request from the user terminal UTk and obtains information on the usage trends of the vehicle Vk or secondary battery used by user Uk, as well as vehicle location information, from the in-vehicle terminal VTk. Based on this information, the battery secondary utilization support device 20 generates predicted battery state data for the secondary battery corresponding to user Uk. Furthermore, the battery secondary utilization support device 20 generates user-provided data for the secondary battery from the predicted battery state data and outputs it to the user terminal UTk.

[0017] More specifically, the battery secondary utilization support device 20 includes an on-board battery management server 21, a battery status data generation unit 22, a user-provided data generation unit 23, a data output unit 24, a user management DB 25, a secondary utilization destination DB 26, and a market price DB 27.

[0018] The on-board battery management server 21 is a server for managing each secondary battery installed in the vehicle Vk. In particular, when the on-board battery management server 21 of this embodiment receives a request signal from the user terminal UTk requesting the presentation of user-provided data, it refers to the user management DB 25 to identify the vehicle Vk and on-board terminal VTk associated with the user ID included in the request signal. Furthermore, the on-board battery management server 21 obtains usage trend information for the vehicle Vk or the secondary batteries installed in the vehicle Vk by communicating with the identified on-board terminal VTk.

[0019] Here, the vehicle Vk usage trend information includes parameters that suggest the usage trends of vehicle Vk that may affect the degradation progression of the secondary battery to date, such as the frequency of driving of vehicle Vk, the distance traveled, and / or the time spent stopped or the time the start switch was turned off. In addition, the secondary battery usage trend information includes parameters that suggest the usage trends of the secondary battery that may affect the degradation progression of the secondary battery to date, such as the number of charge / discharge cycles, the average temperature, and / or the time spent in a non-charge / discharge state.

[0020] The in-vehicle battery management server 21, based on the acquired usage trend information, determines a predetermined reference time t0 (especially the initial usage start time such as the product shipment date or vehicle purchase date t 1s ) generates degradation history data showing the progression of the secondary battery's degradation state from the time of purchase to the present. In particular, the degradation history data includes a history of parameter changes that suggest the progression of the degradation state (health status) up to the present, according to how user Uk has used the vehicle Vk. For example, the onboard battery management server 21 calculates the history of changes in the secondary battery's SOH (State Of Health) as the progression of the degradation state. Here, SOH is defined as the ratio (capacity maintenance rate) of the current battery capacity (full charge capacity) to the initial (new) battery capacity (full charge capacity). Note that a configuration may also be adopted to calculate the history of changes in parameters other than SOH that suggest the degradation state (such as internal resistance). The onboard battery management server 21 then adds the user ID and desired purchase time t included in the above request signal to the generated degradation history data. bs The data is linked and transmitted to the battery status data generation unit 22.

[0021] The battery status data generation unit 22 generates data at the desired trading time t bs And based on the degradation history data, at the predetermined end of the first use period 1e Or at the start of secondary use 2e Predicted battery state variable A represents the state of the secondary battery. k The predicted battery state quantity A is calculated and predicted battery state data including the predicted battery state quantity is generated. k is at the start of secondary use. 2eIt is calculated as an estimated value of the state quantity of the secondary battery that can affect the selectable secondary use destination Su or the selling price. Note that the predicted battery state quantity A k Examples of the predicted battery state quantity A 2e include the SOH and average internal resistance of the secondary battery at the start time t of secondary use. Further, the battery state data generation unit 22 generates predicted battery state data including the predicted battery state quantity A k Then, the battery state data generation unit 22 associates the user ID and the desired trading time t bs with the generated predicted battery state data and transmits it to the user-provided data generation unit 23. Details of the processing in the battery state data generation unit 22 will be described later.

[0022] Based on the vehicle position information and the predicted battery state data acquired from the in-vehicle terminal VTk, the user-provided data generation unit 23 calculates the predicted selling price sp of the secondary battery at the start time t 2e of the secondary use. Here, the predicted selling price sp means a predicted value of the selling price (salvage value) of the secondary battery at the set start time t 2e of the secondary use. Further, the user-provided data generation unit 23 generates user-provided data including the calculated predicted selling price sp, associates the user ID with the user-provided data, and transmits it to the data output unit 24. Details of the processing in the user-provided data generation unit 23 will be described later.

[0023] The data output unit 24 outputs the user-provided data to the user terminal UTk associated with the user ID. The data output unit 24 may have a so-called SaaS (Software as a Service) function that displays the predicted selling price sp and other necessary information included in the user-provided data on the display screen of the user terminal UTk in a desired display mode.

[0024] The user management DB 25 is a database that stores and associates the user ID uniquely assigned to the user terminal UTk with the vehicle ID uniquely assigned to the vehicle Vk and the in-vehicle terminal VTk used by the user Uk.

[0025] The secondary use destination DB26 is a database that stores information about secondary use destinations Su (the location where the secondary battery was provided and its intended use) according to the battery's condition. The location where the secondary battery was provided refers to the location where the secondary battery was delivered (transported) when secondary use began. The intended use refers to the specific use of the secondary battery during secondary use (e.g., for stationary power supply, mobile power supply, and for use in mobile devices).

[0026] The market price DB27 is a database that stores battery transaction prices according to battery condition, secondary use destination (Su), and sale timing. In particular, the battery transaction prices stored in the market price DB27 are determined by applying adjustments to a base transaction price determined by the battery condition and secondary use, based on market fluctuations such as increases and decreases in demand according to the sale timing.

[0027] <User terminal> The user terminal UTk is a terminal operated by user Uk, and consists of a mobile device such as a smartphone or tablet, or a personal computer such as a laptop or desktop computer.

[0028] In particular, when the user terminal UTk detects an input operation requesting user-provided data from user Uk, it receives a predetermined user ID and the desired trading time specified by user Uk. bs A request signal including the above is generated and transmitted to the battery secondary utilization support device 20. The user terminal UTk is also equipped with a display device (display screen) for displaying the predicted selling price sp and other necessary information included for user provision received from the battery secondary utilization support device 20 in a predetermined manner, according to a program stored in its own memory area or through processing by the battery secondary utilization support device 20.

[0029] <In-vehicle terminals> The in-vehicle terminal VTk is an in-vehicle computer mounted on the vehicle Vk that provides information necessary for the battery secondary utilization support device 20. In particular, the in-vehicle terminal VTk of this embodiment includes a telematics communication device 31 and a vehicle position providing device 32.

[0030] The telematics communication device 31 is a device for realizing telematics communication between vehicle Vk and other vehicles V, and between vehicle Vk and the battery secondary utilization support device 20. In particular, in response to a command from the on-board battery management server 21, the telematics communication device 31 outputs data obtained from sensors (not shown) mounted on vehicle Vk and / or from communication with other vehicles V to the battery secondary utilization support device 20 as usage trend information for vehicle Vk.

[0031] Furthermore, the vehicle position provision device 32 is implemented by a function for detecting the position of the vehicle Vk (such as a GPS system), and various hardware and software for transmitting the detected position as vehicle position information to the battery secondary utilization support device 20. The specific processes performed by the battery secondary utilization support device 20 will be described in more detail below.

[0032] Figure 3 is a flowchart illustrating the details of the processing performed by the battery secondary utilization support device 20.

[0033] In step S100, the in-vehicle battery management server 21 obtains the user ID from the user terminal UTk. The battery status data generation unit 22 also obtains the desired buy / sell time from the user terminal UTk. bs Obtain it.

[0034] In step S200, the in-vehicle battery management server 21 acquires usage trend information for the vehicle Vk from the in-vehicle terminal VTk. The user-provided data generation unit 23 also acquires vehicle location information from the in-vehicle terminal VTk.

[0035] In step S300, the on-board battery management server 21 generates degradation history data based on the acquired usage trend information. In particular, the degradation history data in this embodiment includes cycle degradation history data representing the progression of cycle degradation of the secondary battery from reference time t0 to the present, and storage degradation history data representing the progression of storage degradation of the secondary battery from reference time t0 to the present. The on-board battery management server 21 generates cycle degradation history data by referring to the driving frequency (driving time, etc.) of vehicle Vk included in the usage trend information. The on-board battery management server 21 also generates storage degradation history data by referring to the stopping frequency (stopping time, etc.) of vehicle Vk included in the usage trend information.

[0036] In step S400, the battery status data generation unit 22 generates the desired trading time t bs Based on the degradation history data, predictive battery status data is generated.

[0037] Figure 4A is a flowchart illustrating the details of predictive battery state data generation according to this embodiment.

[0038] First, the battery status data generation unit 22 generates data at the desired time of sale. bs And based on degradation history data, the degradation profile P at the time of primary use TO1k (t) is calculated (S410). Here, the degradation profile P during primary use is calculated. TO1k (t) refers to the period from the reference time t0 through the present to the time when the initial use ends t 1e This refers to a function that represents the degradation progression of the secondary battery according to the usage patterns of the vehicle Vk by user Uk up to that point. Also, at the end of primary use t 1e This refers to the point at which user Uk's use of the vehicle Vk (secondary battery) ends. In particular, the end of primary use t 1e This is defined as the point in time when the secondary battery is removed from the vehicle Vk (secondary battery) after the user Uk has completed procedures such as the sale contract for the vehicle Vk. For the sake of simplicity, the desired sale time t will be used below. bs and at the end of the initial use 1eThey will be treated as matching, but the period between the completion of procedures such as the sales contract and the actual time when the secondary battery is removed from the vehicle Vk will be taken into consideration, and the desired sale time t bs Add the relevant period to the end of the initial use period. 1e It is also permissible to define it.

[0039] More specifically, the battery status data generation unit 22 generates data from the reference time t0 to the end of primary use time t based on the cycle degradation history data included in the degradation history data. 1e Cycle degradation profile P represents the progression of cycle degradation up to that point. C1k (t) is calculated. Note that the cycle degradation profile P C1k (t) refers to the period from the reference time t0 to the end of the first use period t 1e This is a function that represents the progression of cycle degradation of the secondary battery up to a certain point in time. In particular, the battery state data generation unit 22 assumes that the cycle degradation progression from the reference time t0 to the present, as defined by the cycle degradation history data, will be maintained from the present onward, and sets the cycle degradation progression to the point at the end of primary use t 1e The function obtained by extending it to the cycle degradation profile P C1k We will find it as (t).

[0040] Furthermore, the battery status data generation unit 22 generates data from the reference time t0 to the end of primary use time t based on the stored degradation history data included in the degradation history data. 1e Storage degradation profile P represents the progression of storage degradation up to that point. S1k (t) is calculated. Note that the storage degradation profile P S1k (t) refers to the period from the reference time t0 to the end of the first use period t 1e This is a function that represents the progression of storage degradation of a secondary battery up to a certain point in time. In particular, the battery state data generation unit 22 assumes that the progression of storage degradation from the reference time t0 to the present, as defined in the storage degradation history data, will be maintained from the present onward, and sets the storage degradation progression to the point at the end of primary use t 1e Save the degraded profile P of the function obtained by extending it to this point. S1k We will find it as (t).

[0041] Furthermore, the battery status data generation unit 22 generates a cycle degradation profile P C1k(t) and storage degradation profile P S1k (t) is integrated to create a primary use degradation profile P TO1k (t) is calculated. Note that the degradation profile P during primary use TO1k (t) refers to the period from the reference time t0 to the end of the first use period t 1e This function represents the progression of total degradation (cycle degradation + storage degradation) up to a certain point.

[0042] Next, the battery status data generation unit 22 generates a storage degradation profile P S2k (t) is calculated (S420). Here, storage degradation profile P S2k (t) refers to the time when the initial use ends. 1e When starting secondary use from t 2e Storage period until [t 1e ,t 2e This function represents the progression of storage degradation of a secondary battery in [a specific time period]. It also represents the time t when secondary use begins. 2e This refers to the date or time when the secondary battery, removed from the vehicle Vk after its primary use has ended, is actually provided to the secondary use recipient Su. Furthermore, the storage period [t 1e ,t 2e ] refers to the time when the initial use ends. 1e When starting secondary use from t 2e This refers to the period during which the rechargeable battery is stored in its designated location.

[0043] More specifically, the battery status data generation unit 22 generates the battery status data for the planned storage period [t 1e ,t 2e Based on the length of the storage area and parameters that suggest the environment at the planned storage location (such as storage temperature or humidity), the storage degradation profile P S2k Perform the operation on (t).

[0044] Furthermore, the battery status data generation unit 22 generates a primary use degradation profile P TO1k (t) and storage degradation profile P S2k By integrating (t), the time from the reference time t0 to the end of the first use period t 1e After that, when secondary use begins 2e Predicted degradation profile P represents the degradation progression specific to user UK up to that point.Uk Find (t) (S430).

[0045] Figure 4B shows the predicted degradation profile P Uk This is a diagram illustrating an example of (t). As shown in the diagram, according to the above calculation, from a predetermined reference time t0, through the present and the time of primary use, to the start of secondary use t 2e Predicted degradation profile P represents the transition of the degradation state of a secondary battery up to that point. Uk (t) can be determined.

[0046] Figure 4C shows the predicted degradation profile P, which is determined for each different user U1, U2, and U3. U1 ,P U2 ,P U3 An example is shown. As illustrated, the above calculation is performed based on various inputs (such as usage trend information) that are determined for each user U1, U2, U3 (each user ID), resulting in each predicted degradation profile P having a unique shape for each user U1, U2, U3. U1 ,P U2 ,P U3 It is possible to find this.

[0047] In the examples shown in Figures 4B and 4C, the predicted degradation profile P is calculated assuming the state of health (SOH) as the state of the secondary battery. Uk (t) is shown. On the other hand, the predicted degradation profile P Uk (t) may also be calculated as a profile of any parameter (e.g., internal resistance) that may suggest a degradation state other than SOH.

[0048] Returning to Figure 4A, the battery status data generation unit 22 generates the predicted degradation profile P Uk (See (t) when secondary use begins t 2e The state variables of a secondary battery (predicted battery state variable A) k ) is calculated (S440). Predicted battery state A k is at the start of secondary use. 2e This is an estimate of the degradation state of a secondary battery. In particular, it is an estimated value of the predicted battery state variable A. k The predicted degradation profile P is a function of time (period).Uk It can be calculated as the value at the start time t of secondary use on (t). 2e and can be calculated as a value.

[0049] For example, when the predicted degradation profile P Uk (t) is defined as the SOH profile of the secondary battery, the predicted battery state quantity A k is the SOH of the secondary battery at the start time t of secondary use (hereinafter, also referred to as "predicted SOH") 2e and is calculated. Also, when the predicted degradation profile P Uk (t) is defined as the internal resistance profile of the secondary battery, the predicted battery state quantity A k is the internal resistance of the secondary battery at the start time t of secondary use (hereinafter, also referred to as "predicted internal resistance") 2e and is calculated.

[0050] Furthermore, the battery state data generation unit 22 generates predicted battery state data including the calculated predicted battery state quantity A k . For example, the battery state data generation unit 22 generates data groups composed of the user ID, the predicted degradation profile P Uk (t), and the predicted battery state quantity A k as the predicted battery state data.

[0051] Returning to FIG. 3, in step S500, the user-provided data generation unit 23 calculates the predicted resale price sp of the secondary battery at the start time t of secondary use based on the predicted battery state data 2e and generates user-provided data including the predicted resale price sp.

[0052] FIG. 5 is a flowchart for explaining the details of generating user-provided data.

[0053] As shown in the figure, the user-provided data generation unit 23 refers to the secondary use destination DB26 based on the predicted battery state data (particularly, the predicted battery state quantity A k ) and extracts secondary use destination candidates Su [m] (m is an arbitrary natural number) (S510). For example, the user-provided data generation unit 23 uses the predicted battery state quantity Ak Compare the predicted battery state quantity A with the reference range of the battery state quantity determined for each secondary use destination Su recorded in the secondary use destination DB26. k Extract one or more secondary use destinations Su whose predicted battery state quantity A is included in the reference range as secondary use destination candidates Su. [m] It should be noted that this reference range is preferably stored in the secondary use destination DB26 in advance as part of the information of the secondary use destination Su.

[0054] Next, the user-provided data generation unit 23 refers to the market price DB27 and, for each of the extracted secondary use destination candidates Su [m] at the start time t of secondary use 2e calculate the estimated transaction price vt of the secondary battery according to the predicted battery state quantity A k at that time (S520). That is, each estimated transaction price vt [m] is determined as an estimated value of the transaction price of the secondary battery at the start time t of secondary use in consideration of the market price according to the predicted battery state quantity A [m] k 2e

[0055] Furthermore, the user-provided data generation unit 23 calculates the transportation cost tc required for transporting the secondary battery from the primary use location Pu to the secondary use destination candidate Su [m] for each of the secondary use destination candidates Su [m] (S530). [m]

[0056] More specifically, the user-provided data generation unit 23 first estimates the primary use location Pu of the secondary battery based on the vehicle position information acquired from the in-vehicle terminal VTk. For example, the user-provided data generation unit 23 generates an area within a predetermined range including the location where the vehicle Vk mainly exists from the vehicle position information, and estimates the location of the facility within the area where the secondary battery can be removed from the vehicle Vk as the primary use location Pu. Furthermore, the user-provided data generation unit 23, from information such as the distance between the primary use location Pu and the location of the secondary use destination candidate Su [m] at the place of supply, for each secondary use destination candidate Su [m] ​​​Transportation cost per tc [m] Perform the calculation.

[0057] Next, the user-provided data generation unit 23 generates a secondary use candidate Su [m] Each estimated transaction price vt [m] and the respective transportation costs tc [m] From this, the final predicted selling price sp of the secondary battery is calculated (S540). More specifically, the user-provided data generation unit 23 calculates each estimated transaction price vt [m] from each transportation cost tc [m] Each value obtained by subtracting (vt (1) -tc (1) ,vt (2) -tc (2) The maximum value among the ...) is determined as the predicted selling price sp of the secondary battery. Then, the user-provided data generation unit 23 generates user-provided data including the obtained predicted selling price sp (S550).

[0058] Returning to Figure 3, in step S600, the data output unit 24 outputs (transmits) the generated user-provided data to the user terminal UTk or the in-vehicle terminal VTk.

[0059] Furthermore, the user terminal UTk or the in-vehicle terminal VTk displays the user-provided data in a predetermined manner on the display device (display screen) of the user terminal UTk or the in-vehicle terminal VTk.

[0060] The effects and benefits of the configuration of the battery secondary utilization support device 20 of this embodiment, as described above, will now be explained.

[0061] According to this embodiment, a battery secondary utilization support device 20 is provided that assists a user Uk of a vehicle Vk equipped with a secondary battery in providing the secondary battery for secondary use. This battery secondary utilization support device 20 includes a degradation history data generation unit (on-board battery management server 21) that generates degradation history data showing the degradation progress of the secondary battery from a predetermined reference time t0 to the present based on the vehicle Vk or secondary battery usage trend information, and a battery secondary utilization start time t based on the degradation history data. 2e Predicted battery state variable A represents the state of the secondary battery.k The predicted battery state A is calculated and calculated. k The system includes a battery status data generation unit 22 that generates predicted battery status data including the following, a user-provided data generation unit 23 that generates user-provided data based on the predicted battery status data, and a data output unit 24 that outputs the user-provided data to a user terminal UTk operated by user Uk.

[0062] This enables the implementation of a logic that takes into account the vehicle Vk or secondary battery usage patterns specific to user Uk, predicts the battery state when the secondary battery is provided to the secondary use destination Su, and provides user Uk with information obtained from the predicted battery state. Therefore, the reliability of the information to be provided to user Uk can be ensured, and user Uk can be more encouraged to provide secondary batteries to the secondary use destination Su. As a result, the supply of secondary batteries to the secondary use destination Su can be further activated, and the amount of battery waste can be reduced.

[0063] In particular, the on-board battery management server 21 generates cycle degradation history data representing the progression of secondary battery cycle degradation from reference time t0 to the present by referring to the driving frequency of vehicle Vk included in the usage trend information, and generates storage degradation history data representing the progression of secondary battery storage degradation from reference time t0 to the present by referring to the stopping frequency of vehicle Vk included in the usage trend information. Then, the battery status data generation unit 22 generates data based on the cycle degradation history data from reference time t0 to the end of primary use t 1e Cycle degradation profile P represents the progression of cycle degradation up to that point. C1k (t) is generated, and based on the storage degradation history data, from the reference time t0 to the time of the end of primary use t 1e Storage degradation profile P represents the progression of storage degradation up to that point. S1k (t) is generated. Furthermore, the battery state data generation unit 22 generates the cycle degradation profile P C1k (t) and storage degradation profile P S1k Based on (t), from reference time t0 to the end of primary use time t 1e Primary use degradation profile P represents the total degradation progression of the secondary battery up to that point. TO1k (t) is generated, and the degradation profile P during primary use is generated.TO1k (t) Predicted battery state A k Perform the calculation.

[0064] This allows for more reliable prediction of battery state A. k A specific logic for achieving this is then implemented.

[0065] Furthermore, the battery status data generation unit 22 generates data at the end of the initial use. 1e When starting secondary use from t 2e Storage period until [t 1e ,t 2e Storage degradation profile P, which represents the progression of degradation in [ ] S2k (t) is calculated, and the degradation profile P during primary use is calculated. TO1k (t) and storage degradation profile P S2k Based on (t), predict battery state A k Perform the calculation.

[0066] This means that in addition to the primary use period of the secondary battery by user UK, the storage period until it is provided for secondary use [t 1e ,t 2e A more reliable predicted battery state A that also takes into account the progression of degradation in ] k A specific logic for achieving this is then implemented.

[0067] In particular, the battery status data generation unit 22 generates data based on the user Uk's desired trading time, which has been acquired in advance. bs Based on this, at the end of the initial use period 1e and at the start of secondary use 2e To define.

[0068] This allows for a specific desired trading time for user UK. bs Predicted battery state A according to the prediction A k This allows us to implement specific logic for performing calculations.

[0069] Furthermore, the user-provided data generation unit 23 generates the battery status data based on the predicted battery status data, at the start of secondary use. 2eThe system calculates the predicted selling price sp of secondary batteries and generates user-provided data that includes at least the predicted selling price sp.

[0070] This enables the realization of a specific logic that calculates the predicted selling price sp of the secondary battery at the time it is scheduled to be provided for secondary use, and provides (notifies) the user Uk of the information including the predicted selling price sp.

[0071] Furthermore, the battery secondary utilization support device 20 of this embodiment further includes a secondary utilization destination database (secondary utilization destination DB26) that stores information on secondary utilization destinations Su, and a market price database (market price DB27) that stores general battery transaction prices according to the battery condition and sale timing.

[0072] Furthermore, the user-provided data generation unit 23 refers to the secondary use destination DB 26 to generate predicted battery state data (especially predicted battery state quantity A) k ) from multiple potential secondary users Su [m] Extract the data and refer to the market price DB27 to extract each candidate for secondary use Su [m] Based on the predicted battery status data, the estimated transaction price for each secondary battery vt [m] Calculate and each estimated transaction price vt [m] The predicted selling price sp is calculated based on this (see Figure 5).

[0073] This allows for a predictive battery state A specific to user UK. k This enables the realization of a specific logic for determining the predicted selling price sp while taking into account the battery trading market price corresponding to the secondary use destination Su.

[0074] In particular, the user-provided data generation unit 23 estimates the primary use location Pu of the secondary battery from the vehicle Vk location information (vehicle location information), and refers to the secondary use destination DB 26 to determine each secondary use destination candidate Su from the primary use location Pu. [m] Transportation cost of secondary batteries to tc [m] Calculate and each estimated transaction price vt [m] from each transportation cost tc [m] The predicted selling price sp is determined from the value obtained by subtracting [a certain factor].

[0075] This allows for a predictive battery state A specific to user UK. k Therefore, the transaction price and transportation costs tc depending on the secondary user Su [m] A specific logic is implemented to determine the predicted selling price (sp) while taking these factors into consideration.

[0076] [Second Embodiment] The second embodiment will be described below. Elements similar to those in the first embodiment will be denoted by the same reference numerals, and their descriptions will be omitted.

[0077] Figure 6 is a block diagram detailing the configuration of each component of the battery secondary utilization support system 10 of this embodiment. As shown in Figure 6, in the battery secondary utilization support system 10 of this embodiment, only the user ID is included in the request signal transmitted by the user terminal UTk (when requesting a sale t bs (This is not included.)

[0078] Figure 7 is a flowchart illustrating the details of the processing performed by the battery secondary utilization support device 20. As shown in the figure, in the processing of the battery secondary utilization support device 20 of this embodiment, only the user ID is obtained from the user terminal UT, and the desired buying and selling time t bs The data is not acquired (S1000). Furthermore, in this embodiment, the processing content in the generation of predicted battery status data (S4000) and the generation of user-provided data (S5000) differs from that of the first embodiment.

[0079] Figure 8 shows the predicted battery state A according to this embodiment. k This is a flowchart that explains the details of the calculation.

[0080] First, the battery status data generation unit 22 generates a number of primary end-of-use candidate t 1e[μ] (μ is an arbitrary natural number) is set (S4100). More specifically, the battery status data generation unit 22 obtains several candidate buy / sell times according to a predetermined algorithm from information on the user Uk's wishes and the vehicle Vk's years of use, which have been acquired in advance, and selects the candidate t for the end of primary use. 1e[μ]The battery status data generation unit 22 generates a set number of candidate primary usage end times t. 1e[μ] Candidates for the start of secondary use, corresponding to each case t 2e[μ] It is determined (S4200).

[0081] Then, the battery status data generation unit 22 generates candidate t for the start of secondary use for each battery status. 2e[μ] For each, the predicted battery state A is calculated from the degradation history data of the secondary battery. k[μ] The calculation is performed (S4300). Note that each predicted battery state A k[μ] The calculation logic is based on the predicted battery state A described in the first embodiment. k This is similar to the calculation (S410~S440). Furthermore, the battery state data generation unit 22 generates each predicted battery state quantity A k[μ] and candidates at the end of each primary use 1e[μ] combination({A k[1] ,t 1e[1]},{A k[2] ,t 1e[2] Generates predicted battery status data including}...) (S4400).

[0082] Figure 9 is a flowchart illustrating the details of user-provided data generation (S5000) in this embodiment.

[0083] As shown in the figure, the user-provided data generation unit 23 refers to the secondary use destination DB 26 and generates a secondary use destination candidate Su from the predicted battery status data. [μ] Extracts (S5100). More specifically, the user-provided data generation unit 23 extracts each predicted battery state quantity A included in the predicted battery state data. k[μ] For each secondary battery, one secondary user Su capable of providing the secondary battery is designated as a secondary user candidate Su. [μ] Extract it as follows.

[0084] Next, the user-provided data generation unit 23 refers to the market price DB 27 and calculates each predicted battery state A k[μ] and potential secondary users Su [μ] For each combination, the estimated transaction price of each secondary battery vt [μ] The calculation is performed (S5200). Note that each estimated transaction price vt [μ]The calculation logic is the same as in the first embodiment (S520).

[0085] Furthermore, the user-provided data generation unit 23 generates each estimated transaction price vt [μ] Each transportation cost tc [μ] Find the estimated transaction price vt [μ] and the respective transportation costs tc [μ] Predicted selling price sp [μ] The calculation is performed (S5300). The specific calculation is the same as the calculation of the predicted selling price sp in the first embodiment (S530, S540).

[0086] Furthermore, the user-provided data generation unit 23 calculates each predicted selling price sp [μ] The highest selling price among them [M] Candidate t for the end of primary use linked to 1e[M] Recommended when selling re It is stored in a designated memory area (S5400).

[0087] Then, the user-provided data generation unit 23 generates data at the time of recommended sale. re It generates user-provided data including (S5500). In particular, the user-provided data generation unit 23 of this embodiment generates user-provided data at the time of recommended sale t re and the maximum selling price associated with it [M] And, when selling is recommended re Candidates at the end of each primary use other than 1e[μ] and each of the predicted selling prices (sp) associated with them [μ] This generates user-provided data, including the following:

[0088] Returning to Figure 7, the data output unit 24 outputs the generated user-provided data to the user terminal UTk. In particular, the data output unit 24 of this embodiment outputs the recommended sale time t to the user terminal UTk. re other candidates at the end of each primary use 1e[μ] This process displays the image in a different manner.

[0089] Figure 10 shows an example of how user-provided data is displayed on the user terminal UTk's display screen. In the example in Figure 10, the trend of the predicted selling price sp for each candidate at the time of sale is displayed on the user terminal UTk. In particular, the trend of the predicted selling price sp increases or decreases depending on the time of sale due to the deterioration of the secondary battery over time, as well as the influence of market prices depending on the secondary use destination Su. In this embodiment, the maximum selling price sp [M] (In the diagram, sp [3] Recommended selling time corresponding to t re Other candidates for sale (sp in the diagram) [1] , sp [2] , and sp [4] This is clearly distinguished from other options. This allows user UK to recognize the timing when it is possible to sell secondary batteries at a high price. In the example shown, the predicted selling price sp for the adjacent selling time (annual) is shown. [μ] The points are shown connected by straight lines, but each predicted selling price sp [μ] It is also acceptable to display this using only a plot.

[0090] The effects and benefits of the configuration of the battery secondary utilization support device 20 of this embodiment, as described above, will now be explained.

[0091] In this embodiment, the battery status data generation unit 22 generates a plurality of predetermined primary end-of-use candidate t 1e[μ] Candidate t for secondary use commencement, corresponding to the situation 2e[μ] For each, predict battery state A k[μ] Perform the calculation.

[0092] This allows for the prediction of battery state A for user UK, corresponding to multiple potential sale times. k[μ] The predicted battery state A is determined by defining the predicted battery state A k[μ] Based on this, it is possible to implement specific logic for generating user-provided data.

[0093] In particular, the battery status data generation unit 22 generates a predetermined number of primary end-of-use candidate t 1e[μ] Each predicted battery state A k[μ] The following calculations are performed for each predicted battery state A. k[μ] and candidates at the end of each primary use1e[μ] This generates predictive battery status data that includes combinations of these combinations.

[0094] The user-provided data generation unit 23 refers to the secondary use destination DB 26 and selects multiple secondary use destination candidates Su from the predicted battery status data. [μ] Extract the data and refer to the market price DB27 to determine each predicted battery state A. k[μ] and potential secondary users Su [μ] For each combination, the estimated transaction price of each secondary battery vt [μ] The calculation is performed. Furthermore, the user-provided data generation unit 23 calculates each estimated transaction price vt [μ] Each predicted selling price sp [μ] Calculate and each predicted selling price sp [μ] The highest selling price among them [M] Candidate t for the end of primary use linked to 1e[μ] Recommended when selling re Set as recommended sale time t re This generates user-provided data, including the above (see Figure 9).

[0095] This enables the implementation of a specific logic that estimates the optimal selling time for secondary batteries from among several potential selling times for user Uk, taking market fluctuations into consideration, and then provides (notifies) user Uk of that optimal selling time.

[0096] [Third Embodiment] The third embodiment will be described below. Elements similar to those in the first or second embodiment will be denoted by the same reference numerals, and their descriptions will be omitted.

[0097] In this embodiment, the battery secondary utilization support device 20 is based on the configuration of the second embodiment and further includes the desired buying and selling time of user Uk. bs The data is obtained. Then, in S4100 of Figure 8, the battery status data generation unit 22 generates the desired buying and selling time of user Uk. bs Based on this, candidate t at the end of initial use 1e[μ] The following is determined. In particular, the battery status data generation unit 22 determines the desired buying and selling time of user Uk. bsThis includes the timing for each unit period (e.g., every year) included within the predetermined period before and after, as well as each candidate for the end of primary use. 1e[μ] Let's assume that.

[0098] Furthermore, in S5500 of Figure 9, the user-provided data generation unit 23 generates the above-mentioned candidate t at the end of each primary use. 1e[μ] Recommended selling time t re The user-provided data generation unit 23 determines the recommended sale time t re and the maximum selling price associated with it [M] And, user UK's desired buy / sell time t bs and the associated predicted selling price sp [tbs] And, when selling is recommended re Or when you wish to buy or sell t bs Candidates at the end of each primary use other than 1e[μ] and each of the predicted selling prices (sp) associated with them [μ] This generates user-provided data, including the following:

[0099] Figure 11 shows an example of how user-provided data is displayed in this embodiment. In the illustrated example, the recommended sale time t re and desired buy / sell time t bs Each candidate at the time of sale including (candidate at the end of primary use) 1e[μ] For each of these, the predicted selling price sp [μ] This is displayed in a graph. In particular, the recommended selling time t re and desired buy / sell time t bs This is displayed separately from other selling timings. More specifically, the recommended selling time is displayed. re It displays this as text, and furthermore, the recommended selling time t re Maximum selling price associated with sp [M] (In the diagram, sp [3] ) is represented by a star-shaped plot. Furthermore, the desired trading time t bs Display the text and the desired buy / sell time t bs Predicted selling price sp [tbs] (In the diagram, sp [4] ) is represented by a circular plot. And, the predicted selling price sp at the time of sale. [μ] (In the diagram, sp[1] and sp [2] ) are represented by a square plot. In the example shown, the predicted selling price sp for adjacent sales (annual) [μ] The points are shown connected by straight lines, but each predicted selling price sp [μ] It is also acceptable to display this using only a plot.

[0100] The above display allows user UK to recognize when they can sell their rechargeable batteries for a higher price than their preferred selling time.

[0101] The effects and benefits of the configuration of the battery secondary utilization support device 20 of this embodiment, as described above, will now be explained.

[0102] According to this embodiment, the battery status data generation unit 22 generates the desired buying and selling time of user Uk, which has been acquired in advance. bs Based on the desired trading time t bs Multiple candidates for the end of primary use, including t 1e[μ] The user data generation unit 23 then sets the recommended sale time t re and the maximum selling price associated with it [M] , and the desired time of buying and selling t bs and the associated predicted selling price sp [tbs] Generate user-provided data that includes this data.

[0103] This enables the implementation of a specific logic to provide (notify) user UK of opportunities to sell their secondary batteries for a higher price than their preferred selling time.

[0104] [Fourth Embodiment] The fourth embodiment will be described below. Elements similar to those in the first to third embodiments will be denoted by the same reference numerals, and their descriptions will be omitted.

[0105] This embodiment assumes that the secondary battery is configured as a battery pack consisting of multiple modules. The market price DB27 stores the market price of the battery, specifically the market price of the pack when the secondary battery is sold in pack units, and the market price of the module when it is sold in module units.

[0106] The battery secondary utilization support device 20 of this embodiment then performs the following processes based on the processes described in the third embodiment.

[0107] Specifically, in S440 of Figure 4A, the battery status data generation unit 22 generates the battery status data at the start of secondary use. 2e The average SOH (hereinafter also referred to as "predicted average SOH"), lower limit SOH (hereinafter also referred to as "predicted lower limit SOH"), SOH uniformity (hereinafter also referred to as "predicted SOH uniformity"), average internal resistance (hereinafter also referred to as "predicted average internal resistance"), and SOH of each module to be sold (hereinafter also referred to as "predicted individual SOH") are used in the predicted battery state A. k It is calculated as follows.

[0108] Then, the user-provided data generation unit 23 first calculates the start time of secondary use based on the predicted average SOH. 2e The basic predicted pack trading price for secondary batteries is calculated. The specific calculation logic for the basic predicted pack trading price is as described in the third embodiment for each estimated trading price vt [μ] The calculation logic is the same as that shown in Figure 5 (S510, S520). However, in this embodiment, when calculating the basic predicted pack transaction price in S520, the pack market price in the market price DB27 is referenced.

[0109] Next, the user-provided data generation unit 23 compares the predicted average internal resistance with a predetermined judgment value. If the predicted average internal resistance is greater than the judgment value, the user-provided data generation unit 23 stores the basic predicted pack transaction price as the predicted pack transaction price in a predetermined storage area. On the other hand, if the predicted average internal resistance is less than or equal to the judgment value, the user-provided data generation unit 23 stores the corrected predicted pack transaction price, obtained by increasing the basic predicted pack transaction price, as the predicted pack transaction price in a predetermined storage area.

[0110] Next, the user-provided data generation unit 23 uses the predicted pack transaction price, the predicted lower limit of SOH, and the predicted SOH uniformity to determine the final estimated transaction price vt. [μ] Perform the calculation.

[0111] Specifically, the user-provided data generation unit 23 compares the predicted lower limit of SOH and the predicted SOH uniformity with predetermined judgment values. If both the predicted lower limit of SOH and the predicted SOH uniformity are equal to or greater than the predetermined judgment values, the user-provided data generation unit 23 sets the predicted pack transaction price as the final estimated transaction price vt. [μ] It is calculated as follows.

[0112] On the other hand, if at least one of the prediction lower limit SOH and the prediction SOH uniformity is smaller than the judgment value, the user-provided data generation unit 23 calculates the prediction module transaction price by reducing the prediction pack transaction price and then calculates the estimated transaction price vt. [μ] The calculation is performed as follows. In particular, the user-provided data generation unit 23 refers to the market price DB 27 to extract the module market price of modules that have a predicted individual SOH of a certain value or higher, and uses the said module market price as the predicted module transaction price.

[0113] Then, the user-provided data generation unit 23 generates the estimated transaction price vt, similar to the second embodiment. [μ] and the associated transportation costs tc [μ] From, the predicted selling price of secondary batteries [μ]The calculation is performed (S540). Therefore, according to this embodiment, the predicted selling price sp to be provided to user Uk is provided after appropriately considering whether pack-unit selling or module-unit selling is applicable. [μ] A concrete logic for defining this will be implemented.

[0114] Figure 12 shows the specific predicted selling price sp in this embodiment. [μ] This figure shows an example of the calculation image. In particular, Figure 12(a) shows a predetermined first sale candidate (for example, a candidate for the end of initial use t). 1e[3] ) Each battery state and transportation cost tc [3] This is shown. On the other hand, Figure 12(b) shows the above first candidate t at the time of sale. 1e[3] A candidate for the second sale after a predetermined period has elapsed (for example, a candidate for the end of the first use) 1e[6] ) Each battery state and transportation cost tc [6] This indicates that.

[0115] The first candidate for sale, shown in Figure 12(a), is t. 1e[3] Therefore, if both the predicted lower limit of SOH and the predicted SOH uniformity are above the judgment value, the estimated transaction price vt is based on the pack market price. [3] The following calculation will be performed. Furthermore, although the predicted average internal resistance has increased above a certain level, the predicted average SOH is above a certain level, so the estimated transaction price vt is calculated from the pack market price based on the corresponding secondary use Su (for example, stationary use rather than EV reuse). [3] The following calculation will be performed: and the transportation cost tc [3] Since it is below the level, the estimated transaction price vt [3] From the final predicted selling price sp [3] This will be determined.

[0116] On the other hand, the second candidate for sale, t, is shown in Figure 12(b). 1e[6] Therefore, the secondary battery has deteriorated to the point of view (SOH) uniformity below the acceptable value. For this reason, assuming sale of modules, the estimated transaction price vt [6] The following calculation will be performed: and the transportation cost tc [7] Since it is below the level, the estimated transaction price vt[6] From the final predicted selling price sp [6] This will be determined.

[0117] Furthermore, according to this embodiment, in the user terminal UTk, when recommended sale time t re , desired buy / sell time t bs , and other candidates for sale (candidates for the end of initial use t 1e[μ] Predicted selling price sp [μ] This can be displayed while reflecting fluctuations that occur across the transition timing between the selling price per pack and the selling price per module.

[0118] Figure 13 shows an example of how user-provided data is displayed in this embodiment. In the illustrated example, as the secondary battery deteriorates, a predetermined price change timing (in the figure, candidate t for the end of primary use) is displayed. 1e[4] ) It is assumed that the predicted lower limit of SOH and the predicted SOH uniformity will be less than or equal to the judgment value. Therefore, the candidate t at the end of the first use is 1e[4] In this case, the predicted selling price sp [μ] The calculation method switches from one based on selling in pack units to one based on selling in module units.

[0119] On the other hand, the above candidate at the end of primary use t 1e[4] From here on, the predicted selling price (sp) [μ] The calculation is based on the assumption of selling in module units. Therefore, it is possible to display a predicted selling price sp that reflects fluctuations across the timing of the switch between the pack-unit selling price and the module-unit selling price. Thus, for user Uk, the deterioration of the secondary battery according to their usage, along with fluctuations in market prices including pack-unit and module-unit selling, can be used to predict the selling price at their desired selling time. bs And recommended selling time t re It is possible to provide (notify) information on the transition of the predicted selling price sp over a predetermined period, including the period in question.

[0120] Furthermore, in the example shown in Figure 13, the recommended selling time t re is a candidate at the end of primary use 1e[4]The timing to take the highest price (in the diagram, candidate t for the end of the first use) 1e[3] ) is determined. Furthermore, the desired trading time of user UK t bs Candidates at the end of primary use 1e[4] Subsequent timings (in the diagram, t) 1e[6] ) is displayed as, and at the time of the desired transaction t bs Predicted selling price sp [6] This is displayed at a relatively low price based on the assumption of selling in module units. Therefore, according to the display in Figure 13, the user UK's desired selling time t bs The recommended selling time is earlier than the period when it is possible to sell in pack units and when it is possible to sell at a particularly high price. re This can be made explicit. This encourages users Uk to sell their secondary batteries (provide them to secondary users Su) as quickly as possible. As a result, it is possible to promote the provision of secondary batteries to secondary users Su when they can be sold in pack units, and the amount of module-level waste can be reduced.

[0121] Furthermore, with the above display configuration, even if the timing of selling secondary batteries reaches a point where it is not possible to sell them in pack units due to individual circumstances of user UK, the projected selling price sp based on module-unit sales will still be displayed. Therefore, even during periods when only module-unit sales are possible, it is possible to encourage user UK to sell their secondary batteries as quickly as possible, thereby reducing the total amount of battery waste, including the disposal of modules.

[0122] Although various embodiments of the present invention have been described above, the configurations described in each of the above embodiments represent only a part of the application examples of the present invention and are not intended to limit the technical scope of the present invention.

[0123] For example, in each of the above embodiments, the predicted degradation profile P Uk (t) is the primary use degradation profile P, which shows the degradation progression of the secondary battery during primary use. TO1k (t), and storage period [t 1e ,t 2eStorage degradation profile P, which shows the degradation progression of secondary batteries during storage. S2k An example of calculation based on (t) was explained. On the other hand, the time of the end of the first use t 1e When starting secondary use from t 2e Storage period such as a short period until [t 1e ,t 2e If the effects of degradation during ] are small, the degradation profile P during primary use TO1k (t) is used directly to predict the degradation profile P Uk A configuration (t) may be adopted to simplify the calculation logic. In this case, the time t when secondary use begins 2e Instead, at the end of the initial use 1e Predicted degradation profile P Uk (t) is the value of the predicted battery state A k It can be calculated as follows.

[0124] Furthermore, in each of the above embodiments, an example was described in which the battery secondary utilization support device 20 outputs user-provided data to the user terminal UTk. However, a configuration in which the battery secondary utilization support device 20 outputs user-provided data to the in-vehicle terminal VTk, or a configuration in which it outputs to both the user terminal UTk and the in-vehicle terminal VTk, may also be adopted. In addition, a configuration in which the processing in the battery secondary utilization support device 20 described in each embodiment is executed by the user terminal UTk or the in-vehicle terminal VTk, or a configuration in which the processing is distributed and executed by at least two of the battery secondary utilization support device 20, the user terminal UTk, and the in-vehicle terminal VTk, may also be adopted.

[0125] More specifically, the initial disclosure scope of this application includes a user terminal device (user terminal UTk) that supports the provision of a secondary battery for secondary use by a user Uk of a vehicle Vk equipped with a secondary battery. In particular, this user terminal UTk includes a degradation history data generation unit that generates degradation history data showing the degradation progression of the secondary battery from a predetermined reference time t0 to the present based on usage trend information of the vehicle Vk or the secondary battery, and a predetermined primary use end time t based on the degradation history data. 1e Or at the start of secondary use 2e Predicted battery state variable A represents the state of the secondary battery.k The system includes a battery state data generation unit 22 that calculates and generates predicted battery state data including the predicted battery state quantity, a user-provided data generation unit 23 that generates user-provided data based on the predicted battery state data, and a user-provided data display unit (display processor and display, etc.) that displays predetermined information by referring to the user-provided data.

[0126] Furthermore, the scope of disclosure in the original application includes an in-vehicle terminal device (in-vehicle terminal VTk) installed in a vehicle Vk equipped with a secondary battery, which supports the provision of the secondary battery for secondary use by the user Uk of the vehicle Vk. In particular, this in-vehicle terminal VTk includes a degradation history data generation unit that generates degradation history data showing the degradation progress of the secondary battery from a predetermined reference time t0 to the present based on usage trend information of the vehicle Vk or the secondary battery, and a unit that generates degradation history data based on the degradation history data, which sets a predetermined primary use end time t 1e Or at the start of secondary use 2e Predicted battery state variable A represents the state of the secondary battery. k The predicted battery state A is calculated and calculated. k The system includes a battery status data generation unit 22 that generates predicted battery status data including the following, a user-provided data generation unit 23 that generates user-provided data based on the predicted battery status data, and a user-provided data display unit (display processor and in-vehicle display, etc.) that displays predetermined information by referring to the user-provided data.

[0127] Furthermore, the initial disclosure of this application includes a battery secondary utilization support system 10 that assists each user U (U1, U2, Un) of each vehicle V (V1, V2, Vn), each of which is equipped with a secondary battery, in providing secondary batteries for secondary use. In particular, this battery secondary utilization support system 10 comprises a battery secondary utilization support device 20, each user terminal UT, and each on-board terminal VT, which are interconnected and able to communicate with each other via a predetermined network 100, and a processing device composed of any one or two or more of the battery secondary utilization support device 20, each user terminal UT, and each on-board terminal VT.

[0128] The processing device includes a degradation history data generation unit that generates degradation history data showing the degradation progression of the secondary battery from a predetermined reference time t0 to the present based on the vehicle Vk or secondary battery usage trend information, and a processing unit that generates degradation history data based on the degradation history data at a predetermined primary end time t 1e Or at the start of secondary use 2e Predicted battery state variable A represents the state of the secondary battery. k The predicted battery state A is calculated and calculated. k The system includes a battery status data generation unit 22 that generates predicted battery status data including the following, a user-provided data generation unit 23 that generates user-provided data based on the predicted battery status data, and a user-provided data display unit that displays a predetermined information on the display units of each user terminal UT and / or each in-vehicle terminal VT by referring to the user-provided data.

[0129] Furthermore, the scope of disclosure in the initial filing of this application includes a battery secondary utilization support method that assists a user Uk of a vehicle Vk equipped with a secondary battery in providing the secondary battery for secondary use. This battery secondary utilization support method includes a degradation history data generation step that generates degradation history data showing the degradation progression of the secondary battery from a predetermined reference time t0 to the present based on usage trend information of the vehicle Vk or the secondary battery, and a step that generates degradation history data based on the degradation history data at a predetermined primary utilization end time t 1e Or at the start of secondary use 2e Predicted battery state variable A represents the state of the secondary battery. k The predicted battery state A is calculated and calculated. k The process includes: a battery status data generation step that generates predicted battery status data including; a user-provided data generation step that generates user-provided data based on the predicted battery status data; and a data output step that outputs the user-provided data to a user terminal UTk operated by user Uk and / or an in-vehicle terminal VTk mounted on a vehicle Vk.

[0130] Furthermore, the initial disclosure scope of this application includes a battery secondary utilization support program for assisting a user Uk of a vehicle Vk equipped with a secondary battery in providing the secondary battery for secondary use, and a computer-readable storage medium on which the battery secondary utilization support program is stored.

[0131] In particular, this battery secondary use support program causes the computer to (i) generate degradation history data showing the degradation progress of the secondary battery from a predetermined reference time t0 to the present based on vehicle Vk or secondary battery usage trend information, and (ii) based on the degradation history data, a predetermined primary use end time t 1e Or at the start of secondary use 2e Predicted battery state variable A represents the state of the secondary battery. k The calculation is performed, and the predicted battery state A k (iii) Generates predicted battery status data including (iii) User-provided data based on the predicted battery status data, and (iv) Refers to the user-provided data and causes the display units of each user terminal UT and / or each in-vehicle terminal VT to perform a predetermined display.

Claims

1. A battery secondary utilization support device that assists users of vehicles equipped with secondary batteries in providing the secondary batteries for secondary use, A degradation history data generation unit generates degradation history data showing the degradation progression of the secondary battery from a predetermined reference time to the present, based on usage trend information of the vehicle or the secondary battery. A battery state data generation unit calculates a predicted battery state quantity that represents the state of the secondary battery at a predetermined time, such as the end of primary use or the start of secondary use, based on the aforementioned degradation history data, and generates predicted battery state data that includes the predicted battery state quantity. A user-provided data generation unit generates user-provided data based on the predicted battery status data, The system includes a data output unit that outputs the user-provided data to a user terminal operated by the user and / or an in-vehicle terminal installed in the vehicle, The aforementioned deterioration history data generation unit, By referring to the vehicle's mileage included in the usage trend information, cycle degradation history data representing the progression of the secondary battery's cycle degradation from the reference point to the present is generated. By referring to the vehicle's stopping frequency included in the usage trend information, storage degradation history data is generated that represents the progression of storage degradation of the secondary battery from the reference time to the present. The aforementioned battery status data generation unit, Based on the cycle degradation history data, a cycle degradation profile is calculated that represents the progression of cycle degradation from the reference time to the end of the first use period. Based on the aforementioned preservation deterioration history data, a preservation deterioration profile is calculated that represents the progression of preservation deterioration from the reference time to the end of the initial use period. Based on the cycle degradation profile and the storage degradation profile, a primary use degradation profile is calculated that represents the total degradation progression of the secondary battery from the reference time to the end of primary use. A storage degradation profile is calculated that represents the progression of storage degradation of the secondary battery during the storage period from the end of the primary use to the start of the secondary use. Based on the primary use degradation profile and the storage degradation profile, the predicted battery state is calculated. Battery secondary usage support device.

2. A battery secondary utilization support device according to claim 1, The aforementioned battery status data generation unit, Based on the user's desired buying and selling time obtained in advance, the end time of the first use and the start time of the second use are determined. Battery secondary usage support device.

3. A battery secondary utilization support device according to claim 1, The aforementioned battery status data generation unit, For each of the predetermined candidates for the start of secondary use corresponding to a set of primary use end times, the predicted battery state is calculated. Battery secondary usage support device.

4. A battery secondary utilization support device that assists users of vehicles equipped with secondary batteries in providing the secondary batteries for secondary use, A degradation history data generation unit generates degradation history data showing the degradation progression of the secondary battery from a predetermined reference time to the present, based on usage trend information of the vehicle or the secondary battery. A secondary use database that stores information on secondary use destinations, A market price database that stores typical battery transaction prices according to battery condition and time of sale, A battery state data generation unit calculates a predicted battery state quantity that represents the state of the secondary battery at a predetermined time, such as the end of primary use or the start of secondary use, based on the aforementioned degradation history data, and generates predicted battery state data that includes the predicted battery state quantity. A user-provided data generation unit generates user-provided data based on the predicted battery status data, The system includes a data output unit that outputs the user-provided data to a user terminal operated by the user and / or an in-vehicle terminal installed in the vehicle, The user-provided data generation unit is: Based on the predicted battery status data, the predicted selling price of the secondary battery at the start of secondary use is calculated. The user-provided data is generated, which includes at least the predicted selling price. The aforementioned battery status data generation unit, The system calculates each predicted battery state corresponding to a predetermined number of candidates for the end of primary use, The predicted battery state data is generated, which includes each of the predicted battery state quantities and each of the candidates for the end of primary use. The user-provided data generation unit is: Referencing the aforementioned secondary use database, multiple candidate secondary use locations are extracted from the predicted battery status data. Referencing the market price database, the estimated transaction price of the secondary battery is calculated for each combination of the predicted battery state and the candidate secondary use destination. The respective predicted selling prices corresponding to each estimated transaction price are calculated, The maximum selling price among each predicted selling price is linked to one of the aforementioned initial usage termination candidates, which is set as the recommended selling time. The user-provided data, including the recommended sale time, is generated. Battery secondary usage support device.

5. A battery secondary utilization support device according to claim 4, The aforementioned battery status data generation unit, Based on the user's desired trading time obtained in advance, a number of candidate times for the end of the initial use, including the desired trading time, are set. The user-provided data generation unit is: The user-provided data is generated, including the recommended selling time and the maximum selling price associated therewith, as well as the desired selling time and the predicted selling price associated therewith. Battery secondary usage support device.

6. A battery secondary utilization support device according to claim 5, The user-provided data generation unit is: The primary use site of the secondary battery is estimated from the location information of the vehicle, The transportation cost of the secondary battery from the primary use site to each of the candidate secondary use sites is calculated. The predicted selling price is determined from the value obtained by subtracting the respective transportation costs from each of the estimated transaction prices. Battery secondary usage support device.

7. A battery secondary utilization support device that assists users of vehicles equipped with a secondary battery configured as a battery pack consisting of multiple modules in providing the secondary battery for secondary use, A degradation history data generation unit generates degradation history data showing the degradation progression of the secondary battery from a predetermined reference time to the present, based on usage trend information of the vehicle or the secondary battery. A battery state data generation unit calculates a predicted battery state quantity that represents the state of the secondary battery at a predetermined time, such as the end of primary use or the start of secondary use, based on the aforementioned degradation history data, and generates predicted battery state data that includes the predicted battery state quantity. A user-provided data generation unit generates user-provided data based on the predicted battery status data, The system includes a data output unit that outputs the user-provided data to a user terminal operated by the user and / or an in-vehicle terminal installed in the vehicle, The aforementioned battery status data generation unit, The average degradation state and the lower limit degradation state of each module constituting the battery pack are calculated as the predicted battery state quantities. The user-provided data generation unit is: Based on the average degradation state, the predicted pack transaction price of the secondary battery at the end of primary use or the start of secondary use is calculated. By referring to the comparison result between the lower limit degradation state and a predetermined judgment value, either the predicted pack transaction price or the predicted module transaction price obtained by correcting the predicted pack transaction price is calculated as the predicted selling price of the secondary battery at the start of secondary use. The user-provided data is generated, which includes at least the predicted selling price. Battery secondary usage support device.

8. A user terminal device that supports the provision of secondary battery reuse by users of vehicles equipped with secondary batteries, A degradation history data generation unit generates degradation history data showing the degradation progression of the secondary battery from a predetermined reference time to the present, based on usage trend information of the vehicle or the secondary battery. A battery state data generation unit calculates a predicted battery state quantity that represents the state of the secondary battery at a predetermined time, such as the end of primary use or the start of secondary use, based on the aforementioned degradation history data, and generates predicted battery state data that includes the predicted battery state quantity. A user-provided data generation unit generates user-provided data based on the predicted battery status data, The system includes a user-provided data display unit that displays a predetermined information by referring to the user-provided data, The aforementioned deterioration history data generation unit, By referring to the vehicle's mileage included in the usage trend information, cycle degradation history data representing the progression of the secondary battery's cycle degradation from the reference point to the present is generated. By referring to the vehicle's stopping frequency included in the usage trend information, storage degradation history data is generated that represents the progression of storage degradation of the secondary battery from the reference time to the present. The aforementioned battery status data generation unit, Based on the cycle degradation history data, a cycle degradation profile is calculated that represents the progression of cycle degradation from the reference time to the end of the first use period. Based on the aforementioned preservation deterioration history data, a preservation deterioration profile is calculated that represents the progression of preservation deterioration from the reference time to the end of the initial use period. Based on the cycle degradation profile and the storage degradation profile, a primary use degradation profile is calculated that represents the total degradation progression of the secondary battery from the reference time to the end of primary use. A storage degradation profile is calculated that represents the progression of storage degradation of the secondary battery during the storage period from the end of the primary use to the start of the secondary use. Based on the primary use degradation profile and the storage degradation profile, the predicted battery state is calculated. User terminal device.

9. An in-vehicle terminal device installed in a vehicle equipped with a secondary battery, which supports the provision of secondary use of the secondary battery by the user of the vehicle, A degradation history data generation unit generates degradation history data showing the degradation progression of the secondary battery from a predetermined reference time to the present, based on usage trend information of the vehicle or the secondary battery. A battery state data generation unit calculates a predicted battery state quantity that represents the state of the secondary battery at a predetermined time, such as the end of primary use or the start of secondary use, based on the aforementioned degradation history data, and generates predicted battery state data that includes the predicted battery state quantity. A user-provided data generation unit generates user-provided data based on the predicted battery status data, The system includes a user-provided data display unit that displays a predetermined information by referring to the user-provided data, The aforementioned deterioration history data generation unit, By referring to the vehicle's mileage included in the usage trend information, cycle degradation history data representing the progression of the secondary battery's cycle degradation from the reference point to the present is generated. By referring to the vehicle's stopping frequency included in the usage trend information, storage degradation history data is generated that represents the progression of storage degradation of the secondary battery from the reference time to the present. The aforementioned battery status data generation unit, Based on the cycle degradation history data, a cycle degradation profile is calculated that represents the progression of cycle degradation from the reference time to the end of the first use period. Based on the aforementioned preservation deterioration history data, a preservation deterioration profile is calculated that represents the progression of preservation deterioration from the reference time to the end of the initial use period. Based on the cycle degradation profile and the storage degradation profile, a primary use degradation profile is calculated that represents the total degradation progression of the secondary battery from the reference time to the end of primary use. A storage degradation profile is calculated that represents the progression of storage degradation of the secondary battery during the storage period from the end of the primary use to the start of the secondary use. Based on the primary use degradation profile and the storage degradation profile, the predicted battery state is calculated. In-vehicle terminal device.

10. A battery secondary utilization support system that assists each user of a vehicle equipped with a secondary battery in providing the secondary battery for secondary use, A battery secondary utilization support device, each user terminal, and each in-vehicle terminal are connected to each other via a predetermined network, enabling mutual communication. The system comprises a battery secondary utilization support device, each of the user terminals, and each of the in-vehicle terminals, or a processing device comprising two or more of these, The aforementioned processing apparatus is A degradation history data generation unit generates degradation history data showing the degradation progression of the secondary battery from a predetermined reference time to the present, based on usage trend information of the vehicle or the secondary battery. A battery state data generation unit calculates a predicted battery state quantity that represents the state of the secondary battery at a predetermined time, such as the end of primary use or the start of secondary use, based on the aforementioned degradation history data, and generates predicted battery state data that includes the predicted battery state quantity. A user-provided data generation unit generates user-provided data based on the predicted battery status data, The system includes a user-provided data display unit that displays a predetermined information on the display units of each user terminal and / or each in-vehicle terminal by referring to the user-provided data, The aforementioned deterioration history data generation unit, By referring to the vehicle's mileage included in the usage trend information, cycle degradation history data representing the progression of the secondary battery's cycle degradation from the reference point to the present is generated. By referring to the vehicle's stopping frequency included in the usage trend information, storage degradation history data is generated that represents the progression of storage degradation of the secondary battery from the reference time to the present. The aforementioned battery status data generation unit, Based on the cycle degradation history data, a cycle degradation profile is calculated that represents the progression of cycle degradation from the reference time to the end of the first use period. Based on the aforementioned preservation deterioration history data, a preservation deterioration profile is calculated that represents the progression of preservation deterioration from the reference time to the end of the initial use period. Based on the cycle degradation profile and the storage degradation profile, a primary use degradation profile is calculated that represents the total degradation progression of the secondary battery from the reference time to the end of primary use. A storage degradation profile is calculated that represents the progression of storage degradation of the secondary battery during the storage period from the end of the primary use to the start of the secondary use. Based on the primary use degradation profile and the storage degradation profile, the predicted battery state is calculated. Battery secondary utilization support system.

11. A battery secondary utilization support system according to claim 10, The user-provided data generation unit is: Based on the predicted battery status data, the predicted selling price of the secondary battery at the start of secondary use is calculated. The user-provided data is generated, which includes at least the predicted selling price. The aforementioned battery status data generation unit, The system calculates each predicted battery state corresponding to a predetermined number of candidates for the end of primary use, The predicted battery state data is generated, which includes each of the predicted battery state quantities and each of the candidates for the end of primary use. The user-provided data generation unit is: By referring to the secondary use destination database which stores information on secondary use destinations, multiple candidate secondary use destinations are extracted from the predicted battery status data. By referring to a market price database that stores general battery transaction prices corresponding to battery condition and sale timing, the estimated transaction price of the secondary battery is calculated for each combination of the predicted battery condition and the candidate secondary use destination. The respective predicted selling prices corresponding to each estimated transaction price are calculated, The maximum selling price among each predicted selling price is linked to one of the aforementioned initial usage termination candidates, which is set as the recommended selling time. The user-provided data, including the recommended sale time, is generated. Battery secondary utilization support system.

12. A battery secondary utilization support system according to claim 11, The aforementioned battery status data generation unit, Based on the user's desired trading time obtained in advance, a number of candidate times for the end of the initial use, including the desired trading time, are set. The user-provided data generation unit is: The user-provided data is generated, including the recommended selling time and the maximum selling price associated therewith, as well as the desired selling time and the predicted selling price associated therewith. Battery secondary utilization support system.

13. A battery secondary utilization support system according to claim 12, The user-provided data generation unit is: The primary use site of the secondary battery is estimated from the location information of the vehicle, The transportation cost of the secondary battery from the primary use site to each of the candidate secondary use sites is calculated. The predicted selling price is determined from the value obtained by subtracting the respective transportation costs from each of the estimated transaction prices. Battery secondary utilization support system.

14. A battery secondary utilization support system according to claim 10, The aforementioned secondary battery is configured as a battery pack consisting of multiple modules, The aforementioned battery status data generation unit, The average degradation state and the lower limit degradation state of each module constituting the battery pack are calculated as the predicted battery state quantities. The user-provided data generation unit is: Based on the average degradation state, the predicted pack transaction price of the secondary battery at the end of primary use or the start of secondary use is calculated. By referring to the comparison result between the lower limit degradation state and a predetermined judgment value, either the predicted pack transaction price or the predicted module transaction price obtained by correcting the predicted pack transaction price is calculated as the predicted selling price of the secondary battery at the start of secondary use. The user-provided data is generated, which includes at least the predicted selling price. Battery secondary utilization support system.

15. A battery secondary utilization support method that assists users of vehicles equipped with secondary batteries in providing the secondary batteries for secondary use, A degradation history data generation step generates degradation history data showing the degradation progression of the secondary battery from a predetermined reference time to the present, based on usage trend information of the vehicle or the secondary battery. A battery state data generation step that calculates a predicted battery state quantity representing the state of the secondary battery at a predetermined time, such as the end of primary use or the start of secondary use, based on the aforementioned degradation history data, and generates predicted battery state data including the predicted battery state quantity. A user-provided data generation step that generates user-provided data based on the predicted battery state data, The process includes a data output step of outputting the user-provided data to a user terminal operated by the user and / or an in-vehicle terminal installed in the vehicle, In the aforementioned degradation history data generation process, By referring to the vehicle's mileage included in the usage trend information, cycle degradation history data representing the progression of the secondary battery's cycle degradation from the reference point to the present is generated. By referring to the vehicle's stopping frequency included in the usage trend information, storage degradation history data is generated that represents the progression of storage degradation of the secondary battery from the reference time to the present. In the aforementioned battery state data generation process, Based on the cycle degradation history data, a cycle degradation profile is calculated that represents the progression of cycle degradation from the reference time to the end of the first use period. Based on the aforementioned preservation deterioration history data, a preservation deterioration profile is calculated that represents the progression of preservation deterioration from the reference time to the end of the initial use period. Based on the cycle degradation profile and the storage degradation profile, a primary use degradation profile is calculated that represents the total degradation progression of the secondary battery from the reference time to the end of primary use. A storage degradation profile is calculated that represents the progression of storage degradation of the secondary battery during the storage period from the end of the primary use to the start of the secondary use. Based on the primary use degradation profile and the storage degradation profile, the predicted battery state is calculated. How to support secondary battery usage.

16. A battery secondary utilization support method according to claim 15, In the user-provided data generation process, Based on the predicted battery status data, the predicted selling price of the secondary battery at the start of secondary use is calculated. The user-provided data is generated, which includes at least the predicted selling price. In the aforementioned battery state data generation process, The system calculates each predicted battery state corresponding to a predetermined number of candidates for the end of primary use, The predicted battery state data is generated, which includes each of the predicted battery state quantities and each of the candidates for the end of primary use. In the user-provided data generation process, By referring to the secondary use destination database which stores information on secondary use destinations, multiple candidate secondary use destinations are extracted from the predicted battery status data. By referring to a market price database that stores general battery transaction prices corresponding to battery condition and sale timing, the estimated transaction price of the secondary battery is calculated for each combination of the predicted battery condition and the candidate secondary use destination. The respective predicted selling prices corresponding to each estimated transaction price are calculated, The maximum selling price among each predicted selling price is linked to one of the aforementioned initial usage termination candidates, which is set as the recommended selling time. The user-provided data, including the recommended sale time, is generated. How to support secondary battery usage.

17. A battery secondary utilization support method according to claim 16, In the aforementioned battery state data generation process, Based on the user's desired trading time obtained in advance, a number of candidate times for the end of the initial use, including the desired trading time, are set. In the user-provided data generation process, The user-provided data is generated, including the recommended selling time and the maximum selling price associated therewith, as well as the desired selling time and the predicted selling price associated therewith. How to support secondary battery usage.

18. A battery secondary utilization support method according to claim 17, In the user-provided data generation process, The primary use site of the secondary battery is estimated from the location information of the vehicle, The transportation cost of the secondary battery from the primary use site to each of the candidate secondary use sites is calculated. The predicted selling price is determined from the value obtained by subtracting the respective transportation costs from each of the estimated transaction prices. How to support secondary battery usage.

19. A battery secondary utilization support method according to claim 15, The aforementioned secondary battery is configured as a battery pack consisting of multiple modules, In the aforementioned battery state data generation process, The average degradation state and the lower limit degradation state of each module constituting the battery pack are calculated as the predicted battery state quantities. In the user-provided data generation process, Based on the average degradation state, the predicted pack transaction price of the secondary battery at the end of primary use or the start of secondary use is calculated. By referring to the comparison result between the lower limit degradation state and a predetermined judgment value, either the predicted pack transaction price or the predicted module transaction price obtained by correcting the predicted pack transaction price is calculated as the predicted selling price of the secondary battery at the start of secondary use. The user-provided data is generated, which includes at least the predicted selling price. How to support secondary battery usage.

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