Battery management system and battery management method

Abstract

This battery management system (1) comprises: a battery-capacity-dividing unit (11) that virtually divides the capacity of a battery (62) mounted on a mobile body (60) into a prescribed number of regions; a capacity-change-receiving unit (12) that receives a capacity change request for requesting a change in the capacity of a first region allocated to a first user (U1); a capacity change adjustment unit (13) that, when a capacity change request is received, determines whether a capacity change is possible according to the capacity change request for a second region allocated to a second user (U2) other than the first user (U1); and a region capacity change unit (14) that changes the capacity of the first region and the second region according to the capacity change request when it is determined that the capacity change of the second region is possible according to the capacity change request.

Description

[Technical field]

[0001] The present invention relates to a battery management system and a battery management method. [Background technology]

[0002] Conventionally, a device has been proposed that virtually divides and manages the capacity of a battery installed in an electric vehicle into a first area used for transmitting and receiving power to and from power equipment connected to a power grid, and a second area used by the vehicle user, and displays the remaining capacity in the second area on the vehicle's meter (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2020 / 148850 Summary of the Invention [Problem to be solved by the invention]

[0004] The above-mentioned conventional technology does not mention changing the ratio in which the battery capacity is divided between the vehicle user and the power equipment, and there is room for improvement to make more effective use of batteries installed in moving objects such as vehicles. The present invention has been made in view of the above background, and has an object to provide a battery management system and a battery management method that can support more effective use of batteries installed in a mobile object. [Means for solving the problem]

[0005] As a first aspect for achieving the above-mentioned object, there is a battery management system including: a battery capacity division unit for virtually dividing the capacity of a battery mounted on a mobile body into a predetermined number of regions and individually allocating the regions to the predetermined number of users, thereby enabling each user to use the battery within the range of the region allocated to each user; a capacity change receiving unit for receiving a capacity change request requesting a change in the capacity of a first region, which is the region allocated to a first user who is one of the predetermined number of users; a capacity change adjustment unit for determining whether or not a capacity change can be made in response to the capacity change request for a second region, which is the region allocated to a second user other than the first user among the predetermined number of users, when the capacity change request is received by the capacity change receiving unit; and a region capacity change unit for changing the capacities of the first region and the second region in response to the capacity change request when it is determined by the capacity change adjustment unit that a capacity change of the second region in response to the capacity change request is possible.

[0006] In the above battery management system, the capacity change adjustment unit may be configured to determine that a capacity change of the second area is possible in response to the capacity change request when the capacity change request satisfies a predetermined acceptance condition for a capacity change of the second area by the second user.

[0007] In the above battery management system, the acceptance condition may be set so that when the request made by the capacity change request is to increase the capacity of the first area, the first user provides the second user with a specified compensation for the reduction in capacity of the second area in response to the capacity change request.

[0008] In the battery management system, the acceptance condition may be set such that the content of the capacity change request is a change in the capacity of the first region limited to a predetermined period or less.

[0009] The above battery management system may be configured to include an outside temperature recognition unit that recognizes the outside temperature near the mobile body, a power consumption prediction unit that predicts the power consumption of equipment mounted on the mobile body based on the outside temperature recognized by the outside temperature recognition unit, and a capacity change application unit that submits a capacity change request to the capacity change acceptance unit when a fluctuation in the power consumption predicted by the power consumption prediction unit becomes equal to or greater than a predetermined value.

[0010] In the above battery management system, the first user may be a user of the mobile body, and the configuration may include a capacity change display unit that displays, when the capacity of the first area is changed by the area capacity change unit, a first display unit provided on the mobile body that displays the charging state of the first area, or a second display unit of a communication terminal used by the first user, that displays that the capacity of the first area has been changed.

[0011] As a second aspect for achieving the above object, there is provided a battery management method executed by a computer, the battery management method including: a battery capacity division step for virtually dividing the capacity of a battery mounted on a mobile body into a predetermined number of regions and individually allocating the regions to the predetermined number of users, thereby enabling each user to use the battery within the range of the regions allocated to each user; a capacity change acceptance step for accepting a capacity change request for requesting a change in the capacity of a first region, which is the region allocated to a first user who is one of the predetermined number of users; a capacity change adjustment step for determining whether or not a capacity change can be made in response to the capacity change request for a second region, which is the region allocated to a second user other than the first user among the predetermined number of users, when the capacity change request is accepted by the capacity change acceptance step; and a region capacity change step for changing the capacities of the first region and the second region in response to the capacity change request when it is determined by the capacity change adjustment step that a capacity change of the second region in response to the capacity change request is possible. Effect of the Invention

[0012] According to the battery management system, it is possible to support more effective use of the battery mounted on the mobile object. [Brief description of the drawings]

[0013] [Figure 1] FIG. 1 is an explanatory diagram of a manner in which a battery of a vehicle is managed by a battery management system. [Diagram 2] FIG. 2 is a configuration diagram of the battery management system. [Diagram 3] FIG. 3 is an explanatory diagram of a manner in which the capacity of each region of the battery is changed. [Figure 4] FIG. 4 is a first display example of the remaining charge amount when the capacity of the first area assigned to the vehicle user is changed. [Diagram 5] FIG. 5 is a second display example of the remaining charge amount when the capacity of the first area assigned to the vehicle user is changed. [Figure 6] FIG. 6 is a flowchart of a process for changing the capacity of the first area allocated to a vehicle user. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] [1. How the battery management system manages the vehicle battery] 1, a management mode of a battery 62 of a vehicle 60 by the battery management system 1 of this embodiment will be described. As shown in a balloon 65, the battery management system 1 virtually divides a capacity Ca of a battery 62 mounted on a vehicle 60 into a first region C1 and a second region C2, and allocates the first region C1 to a vehicle user U1 and the second region C2 to a power provider U2.

[0015] As a result, the battery management system 1 enables the vehicle user U1 to use the battery 62 in the range of the first area C1 and the power provider U2 to use the battery 62 in the range of the second area C2, supporting more effective use of the battery 62. The vehicle 60 corresponds to a moving body in the present disclosure, the vehicle user U1 corresponds to a first user in the present disclosure, and the power provider U2 corresponds to a second user in the present disclosure. Note that the capacity of the battery 62 may be divided into three or more areas and allocated to three or more users.

[0016] Vehicle 60 is an electrically powered vehicle (electric vehicle, plug-in hybrid vehicle, etc.) that uses battery 62 as a drive source, and is connected to charging / discharging equipment 51 provided in a house 50 such as the home of vehicle user U1 via a charging / discharging cable 52. Battery 62 is charged by power supplied from charging / discharging equipment 51 via charging / discharging cable 52, and also supplies power to charging / discharging equipment 51.

[0017] The charging / discharging facility 51 is connected to a plurality of power generation facilities 200 operated by the power company U2 ​​via the power grid 100, and supplies generated power from the power generation facilities 200 to the power grid 100. In addition, a battery 62 is charged with surplus generated power via the charging / discharging facility 51, and when the supply of generated power to the power grid 100 is insufficient, discharged power from the battery 62 is supplied to the power grid 100. The power generation facility 200 generates power using a solar panel 201.

[0018] The battery management system 1 communicates with a vehicle control device 61, a charging / discharging facility 51, a communication terminal 70 used by a vehicle user U1, a management system 210 of an electric power company U2, a weather information server 310, and the like, via a communication network 300. The communication terminal 70 is an in-vehicle communication device including a smartphone, a mobile phone, a tablet terminal, a notebook computer, a desktop computer, a car navigation device, or the like.

[0019] The battery management system 1 transmits ratio instruction information Dvr that instructs the vehicle control device 61 to set a ratio between the first region C1 and the second region C2 of the battery 62 (setting the capacity of each region), based on the ratio instruction information Dvr. The vehicle control device 61 controls the capacity of the battery 62 based on the ratio instruction information Dvr so that the first region C1 is subject to use by the vehicle user U1 (discharging and regenerative charging associated with power consumption in the vehicle 60, and charging from the charging / discharging equipment 51 based on the operation of the vehicle user U1), and the second region C2 is subject to use by the power company U2 ​​(charging as a buffer for power generated by the power generation equipment 200, and discharging associated with power supply to the power grid 100).

[0020] Furthermore, the battery management system 1 executes a process of changing the capacities of the first area C1 and the second area C2 of the battery 62 based on external factors such as a request from the vehicle user U1, a request from the electric power provider U2, and the outside air temperature near the vehicle 60 provided by the weather information server 310. For example, when capacity change request information Ccr requesting an increase in the capacity of the first area C1 is received from the communication terminal 70 of the vehicle user U1, the battery management system 1 determines whether or not the acceptance condition is satisfied based on the acceptance condition information Awc transmitted from the management system 210 of the electric power provider U2.

[0021] Then, when the capacity change request satisfies the acceptance condition, the battery management system 1 changes the capacities of the first region C1 and the second region C2 in response to the capacity change request, and transmits ratio instruction information Dvr instructing the capacity change to the vehicle control device 61. Upon receiving the ratio instruction information Dvr, the vehicle control device 61 reflects the change in the capacities of the first region C1 and the second region C2 in the charge / discharge control of the battery 62, and displays on the display unit 63 a message indicating that the capacity of the first region C1 has increased.

[0022] In addition, for ease of explanation, FIG. 1 shows one vehicle user U1 and one power provider U2, but the battery management system 1 performs similar adjustment processing for multiple vehicle users and multiple power providers regarding the divided use of batteries installed in multiple vehicles.

[0023] [2. Battery Management System Configuration] The configuration of the battery management system will be described with reference to Fig. 2 to Fig. 5. With reference to Fig. 2, the battery management system 1 is a computer system including a processor 10, a memory 30, a communication unit 40, etc. The communication unit 40 communicates with a vehicle control device 61, a communication terminal 70 used by a vehicle user U1, a management system 210 of an electric power company U2, a weather information server 310, etc., via a communication network 300.

[0024] The memory 30 stores a control program 31 of the battery management system 1, division ratio data 32 indicating the division ratio setting (setting of the capacity of each area) between the first area C1 and the second area C2 of the battery 62, and acceptance condition data 33 indicating the acceptance conditions for changing the capacity of the second area C2 presented by the electric power provider U2.

[0025] By reading and executing the control program 31, the processor 10 functions as a battery capacity division unit 11, a capacity change acceptance unit 12, a capacity change adjustment unit 13, an area capacity change unit 14, an outside temperature recognition unit 15, a power consumption prediction unit 16, a capacity change application unit 17, and a capacity change display unit 18.

[0026] The process executed by the battery capacity dividing unit 11 corresponds to a battery capacity dividing step in the battery management method of the present disclosure, the process executed by the capacity change accepting unit 12 corresponds to a capacity change accepting step in the battery management method of the present disclosure, the process executed by the capacity change adjusting unit 13 corresponds to a capacity change adjusting step in the battery management method of the present disclosure, and the process executed by the area capacity changing unit 14 corresponds to an area capacity changing step in the battery management method of the present disclosure.

[0027] As described above, the battery capacity division unit 11 virtually divides the capacity Ca of the battery 62 mounted on the vehicle 60 into a first region C1 allocated to the vehicle user U1 and a second region C2 allocated to the electric power provider U2, and stores division ratio data 32 indicating the division ratio in the memory 30. In addition, the battery capacity division unit 11 transmits division instruction information Dvr to the vehicle control device 61 to instruct the use of the battery 62 divided into the first region C1 and the second region C2.

[0028] The capacity change receiving unit 12 receives capacity change request information Ccr transmitted from the communication terminal 70 used by the vehicle user U1, and receives a request from the vehicle user U1 to change the capacity of the first region C1. The capacity change adjusting unit 13 receives acceptance condition information Awc transmitted from the management system 210 of the electric power business operator U2, and recognizes the acceptance conditions for the capacity change of the second region C2 set by the electric power business operator U2.

[0029] As the acceptance conditions, for example, the following first acceptance condition and second acceptance condition are set. First acceptance condition: A predetermined compensation corresponding to the reduction in capacity of the second region C2 is provided from the vehicle user U1 to the electric power provider U2. Second acceptable condition: The period during which the capacity of the second region C2 is reduced is limited to a predetermined period (such as several days) or less.

[0030] The capacity change adjustment unit 13 stores acceptable condition data 33 indicating the acceptable conditions in the memory 30. When a capacity change request for the first area C1 is accepted by the capacity change acceptance unit 12, the capacity change adjustment unit 13 determines whether or not the capacity of the second area C2 can be changed in response to the capacity change request. Specifically, when the capacity change request satisfies the first acceptable condition or the second acceptable condition, the capacity change adjustment unit 13 determines that the capacity of the second area C2 can be changed in response to the capacity change request.

[0031] Furthermore, if the capacity change request does not satisfy the first acceptance request and the second acceptance condition, the capacity change adjustment unit 13 transmits capacity change request information to the management system 210 and inquires of the power company U2 ​​about whether or not the capacity of the second region C2 can be changed in response to the capacity change request. Then, when capacity change acceptance information permitting the change of the capacity of the second region C2 in response to the capacity change request is received from the management system 210, the capacity change adjustment unit 13 determines that the capacity of the second region C2 can be changed in response to the capacity change request.

[0032] The region capacity change unit 14 changes the capacities of the first region C1 and the second region C2 in response to the capacity change request when the capacity change adjustment unit 13 determines that the capacity of the second region C2 can be changed in response to the capacity change request. In response to this change, the battery capacity division unit 11 updates the division ratio data 32 to data indicating the changed division ratio of the first region C1 and the second region C2, and transmits division instruction information Dvr to the vehicle control device 61 to instruct the use of the battery 62 according to the changed division ratio.

[0033] The outside air temperature recognition unit 15 recognizes the outside air temperature near the vehicle 60 based on weather information near the parking position of the vehicle 60 provided by the weather information server 310, or verified temperature information by an outside air temperature sensor equipped in the vehicle 60 and transmitted from the vehicle control device 61. The power consumption prediction unit 16 predicts the power consumption of devices (such as an air conditioner and a cooling device for temperature management of the battery 62) equipped in the vehicle 60 based on the outside air temperature near the vehicle 60 recognized by the outside air temperature recognition unit 15. For example, the power consumption prediction unit 16 predicts that when the outside air temperature is low, below a predetermined temperature, power consumption will increase for heating by the air conditioner.

[0034] When the amount of fluctuation in power consumption predicted by the power consumption prediction unit 16 becomes equal to or greater than a predetermined value, the capacity change request unit 17 submits a capacity change request to the capacity change reception unit 12 to request a change in the capacity of the first region C1 according to the amount of fluctuation in power consumption. Here, the amount of fluctuation in power consumption is the amount of fluctuation in a certain period such as one day or several days, and the application for capacity change may be a request to increase the first region C1 during a period when power consumption is high, such as several winter months.

[0035] 3 shows an example in which the capacity of the first region C1 is increased and the capacity of the second region C2 is decreased from the normal use setting of A1 during a period in which the power consumption of the devices of the vehicle 60 increases in winter while the amount of power generated by the solar panel 201 decreases. Also, A3 shows an example in which the vehicle user U1 transmits capacity change request information Ccr for increasing the capacity of the first region C1 from the communication terminal 70 to the battery management system 1 when traveling far away in the vehicle 60, and in response, the capacity of the first region C1 is increased to the full capacity Ca of the battery 62.

[0036] The capacity change display unit 18 transmits display change information to the vehicle control device 61, the display change information instructing the display device 61 to display that the capacity of the first area C1 has been changed by the area capacity change unit 14. Upon receiving the display change information, the vehicle control device 61 displays on the display unit 63 provided in the vehicle 60 a message indicating that the capacity of the first area C1 has been changed.

[0037] Fig. 4 and Fig. 5 show display examples when the first area C1 is changed. Fig. 4 shows a display example in which the capacity of the first area C1 is displayed, and is switched from X1 kWh shown in A4 to X2 kWh shown in A5. Fig. 5 shows a display example in which the size of the display area is changed, and when the capacity of the first area C1 is increased, the size of the display area for the remaining amount of electricity is expanded from the size shown in A6 to the size shown in A7.

[0038] [3. Processing changes to the capacity of the first area] A procedure for changing the capacity of the first region C1 executed by the battery management system 1 in the situation shown in FIGS. 1 and 2 will be described according to the flowchart shown in FIG.

[0039] By loop processing of steps S1 and S2 in FIG. 6, the capacity change receiving unit 12 advances to step S2 when, in step S1, it receives capacity change request information Ccr from the communication terminal 70 of the vehicle user U1, or when, in step S10, the fluctuation in power consumption predicted by the power consumption prediction unit 16 becomes equal to or exceeds a predetermined value and an application for a capacity change is made.

[0040] In step S2, the capacity change adjustment unit 13 judges whether the capacity change request information Ccr or the content of the capacity change request by the capacity change application satisfies the first or second acceptable condition presented by the power company U2. If the content of the capacity change request satisfies the first or second acceptable condition, the capacity change adjustment unit 13 proceeds to step S20, and if the content of the capacity change request does not satisfy the first or second acceptable condition, the capacity change adjustment unit 13 proceeds to step S3.

[0041] In step S3, the capacity change adjustment unit 13 transmits capacity change request information Ccr to the management system 210 of the electric power business operator U2 to inquire whether the capacity of the second region C2 can be changed in response to the capacity change request. In the following step S4, when the capacity change adjustment unit 13 receives capacity change acceptance information from the management system 210 of the electric power business operator U2 that accepts the change in the capacity of the second region C2 in response to the capacity change request, the capacity change adjustment unit 13 proceeds to step S20.

[0042] On the other hand, if the capacity change acceptance information is not received, the capacity change adjustment unit 13 proceeds to step S5 and transmits capacity change impossibility information to the communication terminal 70 of the vehicle user U1 notifying that the first area C1 cannot be changed in response to the capacity change request. As a result, a notification that the capacity change of the first area C1 is not possible is displayed on the display unit of the communication terminal 70.

[0043] In step S20, the area capacity change unit 14 changes the capacities of the first area C1 and the second area C2 based on the capacity change request. In the following step S21, the battery capacity division unit 11 transmits division instruction information Dvr instructing the division ratio corresponding to the capacities of the first area C1 and the second area C2 changed by the area capacity change unit 14 to the vehicle control device 61. As a result, the control of the battery 62 by the vehicle control device 61 is changed to one based on the changed division ratio.

[0044] In the next step S22, the capacity change display unit 18 transmits display change information to the vehicle control device 61 to instruct the vehicle control device 61 to change the display of the remaining charge amount in accordance with the capacity change in the first area C1. The vehicle control device 61 that has received the display change information changes the display mode of the remaining charge amount in the first area C1 as described above with reference to Figs. 4 and 5.

[0045] In the next step S23, the capacity change display unit 18 transmits capacity change implementation information to the communication terminal 70 of the vehicle user U1, notifying the user that the capacity of the first area C1 has been changed. The communication terminal 70, which has received the capacity change implementation information, displays on the display unit of the communication terminal 70 a message notifying the user that the capacity of the first area C1 has been changed. This notifies the user U1 that the capacity of the first area C1 has been changed.

[0046] [4. Other embodiments] In the above embodiment, a vehicle 60 is shown as a moving body of the present disclosure, but the moving body of the present disclosure may be any body equipped with a battery that is charged and discharged by a charging and discharging facility, and may also be an aircraft, a ship, etc.

[0047] In the above embodiment, a case has been described in which the change in the capacity of the second area C2 allocated to the electric power business operator U2 is adjusted in response to a request from the vehicle user U1 to change the capacity of the first area C1. As another embodiment, a case in which the change in the capacity of the first area C1 by the vehicle user U1 is adjusted in response to a request from the electric power business operator U2 to change the capacity of the second area C2 can also be handled by a similar process. In this case, the electric power business operator U2 is the first user of the present disclosure, and the vehicle user U1 is the second user of the present disclosure.

[0048] As one of the conditions for accepting the capacity change request in the first region C1 by the vehicle user U1 exemplified in the above embodiment, or as a condition in addition to the above-mentioned conditions for acceptance, a condition may be set in which one user sharing the battery 62 inquires of other users as to whether or not the capacity change request is acceptable, and a response that the capacity change is permitted is obtained from the other users. This allows the capacity change to be flexibly and reliably adjusted.

[0049] In the above embodiment, the vehicle 60 is provided with an outside temperature recognition unit 15, a power consumption prediction unit 16, and a capacity change application unit 17, and the capacity of the first area C1 is changed based on the power consumption of the equipment provided in the vehicle 60. However, the outside temperature recognition unit 15, the power consumption prediction unit 16, and the capacity change application unit 17 may be omitted.

[0050] In the above embodiment, a capacity change display unit 18 is provided, and when the capacity of the first area C1 is changed, the display unit 63 of the vehicle 60 or the display unit of the communication terminal 70 displays that the capacity of the first area C1 has been changed. However, the capacity change display unit 18 may be omitted in a configuration.

[0051] In the above embodiment, the battery management system 1 of the present disclosure is configured as a computer system that communicates with the vehicle 60 equipped with the battery 62. In another embodiment, the battery management system may be configured as a function of the vehicle control device 61. In this case, the configuration is such that communication is performed between the vehicle control device 61, the communication terminal 70 of the vehicle user U1, and the management system 210 of the electric power provider U2.

[0052] 2 is a schematic diagram showing the functional configuration of the battery management system 1 divided according to main processing contents in order to facilitate understanding of the present invention, and the configuration of the battery management system 1 may be divided in other ways. Furthermore, the processing of each component may be executed by one hardware unit or by multiple hardware units. Furthermore, the processing of each component shown in FIG. 6 may be executed by one program or by multiple programs.

[0053] [5. Configuration supported by the above embodiment] The above embodiment is a specific example of the following configuration.

[0054] (Configuration 1) A battery management system comprising: a battery capacity division unit that virtually divides the capacity of a battery mounted on a mobile object into a predetermined number of regions and assigns the regions individually to the predetermined number of users, thereby enabling each user to use the battery within the range of the region assigned to each user; a capacity change receiving unit that receives a capacity change request to request a change of the capacity of a first region, which is the region assigned to a first user who is one of the predetermined number of users; a capacity change adjustment unit that, when the capacity change request is received by the capacity change receiving unit, determines whether or not a capacity change can be made in response to the capacity change request for a second region, which is the region assigned to a second user other than the first user among the predetermined number of users; and a region capacity change unit that changes the capacities of the first region and the second region in response to the capacity change request when it is determined by the capacity change adjustment unit that a capacity change of the second region in response to the capacity change request is possible. According to the battery management system of configuration 1, the capacity change adjustment unit determines whether or not the capacity of the first area assigned to the first user can be changed, and the area capacity change unit changes the capacity of the first area, thereby supporting more effective use of the battery installed in the mobile object.

[0055] (Configuration 2) A battery management system as described in Configuration 1, wherein the capacity change adjustment unit determines that the capacity of the second area can be changed in accordance with the capacity change request when the capacity change request satisfies a predetermined acceptance condition for a capacity change of the second area by the second user. According to the battery management system of configuration 2, by setting in advance the acceptance conditions for the capacity change of the second area, it is possible to quickly change the capacity of the battery area in response to a capacity change request.

[0056] (Configuration 3) A battery management system as described in Configuration 2, wherein the acceptance condition is set such that when the request made by the capacity change request is to increase the capacity of the first area, the first user provides the second user with a specified compensation for the reduction in capacity of the second area in response to the capacity change request. According to the battery management system of configuration 3, by providing a predetermined compensation to the second user, it is possible to quickly increase the capacity of the first area and decrease the capacity of the second area in response to a capacity change request.

[0057] (Configuration 4) A battery management system according to configuration 2 or 3, wherein the acceptance condition is set such that the content of the capacity change request is a change in the capacity of the first region limited to a predetermined period or less. According to the battery management system of configuration 4, when the change in capacity of the first area due to a capacity change request occurs in a short period of time, the capacities of the first area and the second area can be changed quickly without having to perform a process of obtaining consent from the second user.

[0058] (Configuration 5) A battery management system according to any one of configurations 1 to 4, comprising: an outside temperature recognition unit that recognizes the outside temperature near the mobile body; a power consumption prediction unit that predicts the power consumption of an equipment mounted on the mobile body based on the outside temperature recognized by the outside temperature recognition unit; and a capacity change application unit that submits a capacity change request to the capacity change reception unit when a fluctuation in the power consumption predicted by the power consumption prediction unit becomes greater than or equal to a predetermined value. According to the battery management system of configuration 5, when the power consumption of equipment (air conditioners, battery cooling and heating devices, etc.) whose power consumption is expected to change in accordance with changes in the outside air temperature near the mobile body reaches or exceeds a predetermined value, the capacities of the first and second areas can be efficiently changed without waiting for a request from the first user to change the capacity of the first area.

[0059] (Configuration 6) The first user is a user of the mobile body, and the battery management system is described in any one of configurations 1 to 5, and is equipped with a first display unit provided on the mobile body that displays the charging state of the first area when the capacity of the first area is changed by the area capacity change unit, or a capacity change display unit that displays that the capacity of the first area has been changed by a second display unit of a communication terminal used by the first user. According to the battery management system of configuration 6, the first user can be notified that the capacity of the first area has been changed by displaying a message on a first display unit provided in the mobile object or a second display unit of the communication terminal.

[0060] (Configuration 7) A battery management method executed by a computer, comprising: a battery capacity division step for virtually dividing a capacity of a battery mounted on a mobile body into a predetermined number of regions and individually allocating the regions to the predetermined number of users, thereby enabling each user to use the battery within the range of the region allocated to each user; a capacity change receiving step for accepting a capacity change request requesting a change of the capacity of a first region, which is the region allocated to a first user who is any one of the predetermined number of users; a capacity change adjustment step for determining whether or not a capacity change can be made in response to the capacity change request for a second region, which is the region allocated to a second user other than the first user among the predetermined number of users, when the capacity change request is accepted by the capacity change accepting step; and a region capacity change step for changing the capacities of the first region and the second region in response to the capacity change request when it is determined by the capacity change adjustment step that a capacity change of the second region in response to the capacity change request is possible. By executing the battery management method of configuration 7 by a computer, the same effects as those of the battery management system of configuration 1 can be obtained. [Explanation of symbols]

[0061] 1...battery management system, 10...processor, 11...battery capacity division section, 12...capacity change reception section, 13...capacity change adjustment section, 14...area capacity change section, 15...outside temperature recognition section, 16...power consumption prediction section, 17...capacity change application section, 18...capacity change display section, 30...memory, 31...control program, 32...division ratio data, 33...acceptance condition data, 40...communication section, 50...house, 51...charging / discharging equipment, 52...charging / discharging cable, 60...vehicle (mobile body), 61...vehicle control device, 62...battery, 63...vehicle display section, 70...communication terminal, 100...power grid, 200...power generation equipment, 201...solar panel, 210...power company management system, 300...communication network, 310...weather information server, U1...vehicle user (first user), U2...power company (second user), C1...first area, C2...second area.

Claims

1. a battery capacity division unit that virtually divides a capacity of a battery mounted on a mobile object into a predetermined number of regions and assigns the regions individually to the predetermined number of users, thereby enabling each user to use the battery within the range of the region assigned to each user; a capacity change receiving unit that receives a capacity change request for requesting a change in the capacity of a first area, which is the area allocated to a first user who is any one of the predetermined number of users; a capacity change adjustment unit that, when the capacity change request is received by the capacity change receiving unit, determines whether or not to change the capacity of a second area, which is the area allocated to a second user other than the first user among the predetermined number of users, in response to the capacity change request; a region capacity change unit that changes the capacities of the first region and the second region in response to the capacity change request when the capacity change adjustment unit determines that the capacity change of the second region in response to the capacity change request is possible; A battery management system comprising:

2. The capacity change adjustment unit determines that the capacity of the second area can be changed in response to the capacity change request when the capacity change request satisfies a preset condition for allowing the second user to change the capacity of the second area. The battery management system of claim 1 .

3. The acceptance condition is set such that, when the request made by the capacity change request is to increase the capacity of the first area, the first user provides the second user with a predetermined compensation for the reduction in the capacity of the second area in response to the capacity change request. The battery management system of claim 2 .

4. The acceptance condition is set such that the content of the capacity change request is a change in the capacity of the first area limited to a predetermined period or less. The battery management system according to claim 2 or 3.

5. an outside temperature recognition unit that recognizes an outside temperature near the moving object; a power consumption prediction unit that predicts power consumption of a device mounted on the moving object based on the outside air temperature recognized by the outside air temperature recognition unit; a capacity change request unit that requests the capacity change request to the capacity change receiving unit when a fluctuation amount of the power consumption predicted by the power consumption prediction unit becomes equal to or greater than a predetermined value; Equipped The battery management system according to any one of claims 1 to 4.

6. the first user is a user of the moving object, and a capacity change display unit that displays, when the capacity of the first area is changed by the area capacity change unit, a first display unit that is provided on the mobile body and displays a charging state of the first area, or a second display unit of a communication terminal used by the first user, that displays that the capacity of the first area has been changed. The battery management system according to any one of claims 1 to 5.

7. 1. A computer-implemented method for battery management, comprising: a battery capacity division step of virtually dividing a capacity of a battery mounted on a mobile object into a predetermined number of regions and allocating the regions individually to the predetermined number of users, thereby enabling each user to use the battery within the range of the region allocated to each user; a capacity change receiving step of receiving a capacity change request for requesting a change in the capacity of a first area, which is the area allocated to a first user who is any one of the predetermined number of users; a capacity change adjustment step of determining whether or not a capacity change can be made in response to the capacity change request for a second area, which is the area allocated to a second user other than the first user among the predetermined number of users, when the capacity change request is accepted by the capacity change acceptance step; an area capacity changing step of changing capacities of the first area and the second area in response to the capacity change request when it is determined by the capacity change adjustment step that the capacity change of the second area is possible in response to the capacity change request; 23. A battery management method comprising:

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