ABSTRACT
Abstract
A battery management system includes a battery status acquisition unit for acquiring, as secondary battery data, identification data that specifies and identifies the secondary battery and electrical characteristic data that indicates electrical characteristics of the secondary battery when connected, when charging or when discharging, a battery capacity authentication unit for calculating a chargeable capacity of the secondary battery based on the electrical characteristic data and authenticating the chargeable capacity as an authentication capacity and, a battery management database unit provided in the management server for recording the identification data in association with the authentication capacity, a user management database for recording user data related to a user of the secondary battery in association with the identification data, and a user data modification unit for modifying the association between the user data and the identification data.
Description
TECHNICAL FIELD
The present invention relates to a battery management system, a battery management method, and a program.
BACKGROUND ART
In recent years, there is a growing use of electric vehicles, hybrid cars, and electric motorcycles using electric power as a power source for mobile vehicles (e.g., automobiles, motorcycles) and converting the power supplied from a secondary battery into kinetic energy. Further, the adoption rate of power-assisted bicycles using electric power as an auxiliary power source of the bicycle is also increasing.
Because these mobile vehicles use the electric power stored in the secondary battery mounted on the mobile vehicles, their travel distance is determined by the chargeable capacity of the secondary battery. In order to increase the travel distance of the mobile vehicle, it is effective to increase the capacity by increasing the size of the secondary battery. However, there is a problem that the increase in the weight of the secondary battery lowers energy efficiency. Thus, there is proposed a battery replacement method for extending travel distance by detachably mounting a secondary battery to a mobile vehicle and replacing the secondary battery having reduced chargeable capacity with a fully charged one.
With this battery replacement method, plural secondary batteries are charged and stored in a battery station, a user brings a mobile vehicle and replaces a used secondary battery, and a battery replacement fee or lease charge can be collected. Further, the replaced used secondary battery is fully charged at the battery station and replaced and used again by a subsequent user. However, the chargeable capacity of the secondary battery is known to deteriorate according to the environment and history of its usage. Even if the secondary battery is fully charged, the chargeable capacity is lower compared to that when it was new. Therefore, with such battery replacement method, battery management becomes necessary in view of the deterioration of the secondary battery.
For example, Patent Document 1 describes an operation server connected to a battery replacement device via a network server to manage deterioration by measuring the number of times the secondary battery was charged and removing any secondary battery charged for a predetermined number of times from those that are lendable.
RELATED ART DOCUMENTS
Patent Documents
Patent Document 1: Patent Publication No. 6708805
SUMMARY OF THE INVENTION
Problem to be Solved by the Invention
With the conventional art described in Cited Document 1, although the lower limit of the chargeable capacity of a lendable secondary battery can be set by the operation server, the user cannot grasp the actual chargeable capacity or travel distance of the rechargeable battery that has been lent. Therefore, it is difficult for the user to continue running beyond the capacity of the set lower limit, and the battery had to be replaced even when there is surplus of remaining electric power of the secondary battery. Further, since there are individual differences in the secondary battery depending on the manufacturing conditions and usage conditions, it is difficult to accurately grasp the chargeable capacity by way of the deterioration management based on the number of times of charging.
Further, even in applications where the travel distance of the mobile vehicle assumed by the user is short and a small amount of remaining electricity is enough, only a secondary battery exceeding the lower limit set by the operation server is can be lent. Thus, it is difficult to sufficiently make effective use of the secondary battery.
In view of the above-described conventional problems, it is an object of the present invention to provide a battery management system, a battery management method, and a program capable of appropriately using a secondary battery according to the deterioration and chargeable capacity of the secondary battery.
Means for Solving the Problem
In order to solve the above-mentioned problems, the battery management system according to the present invention performs charging and discharging of a secondary battery connected to a battery station and manages the secondary battery with a management server communicably connected to the battery station. The battery management system is characterized by including a battery status acquisition unit that acquires, as secondary battery data, identification data that specifies and identifies the secondary battery and electrical characteristic data that indicates electrical characteristics of the secondary battery when connected, when charging or when discharging, a battery capacity authentication unit that calculates a chargeable capacity of the secondary battery based on the electrical characteristic data and authenticates the chargeable capacity as an authentication capacity, a battery management database unit provided in the management server and records the identification data in association with the authentication capacity, a user management database that records user data related to a user of the secondary battery in association with the identification data, and a user data modification unit that modifies the association between the user data and the identification data.
With the battery management system of the present invention, it is possible to appropriately use a secondary battery by accurately grasping the deterioration and chargeable capacity of the secondary battery because the chargeable capacity of the secondary battery is calculated and the chargeable capacity is authenticated as an authentication capacity based on electrical characteristic data acquired from the secondary battery.
Further, according to one aspect of the present invention, the user data modification unit modifies the association of the user data and the identification data based on the authentication capacity.
Further, according to one aspect of the present invention, there is further provided a user terminal communicably connected to the battery station or the management server. The user data modification unit modifies the association between the user data and the identification data based on an input result from the user terminal.
Further, according to one aspect of the present invention, there is further provided a distribution server communicably connected to the management serve. The distribution server includes a presentation unit that presents the authentication capacity of the secondary battery identified by the identification data to another user, and a receiving unit that receives acquisition offer data from the other user. The user data modification unit modifies the association between the user data and the identification data based on the acquisition offer data.
Further, according to one aspect of the present invention, the electrical characteristic data includes one of a full charge voltage, a full discharge voltage, an open circuit voltage, a closed circuit voltage, a charge characteristic, a discharge characteristic, an internal resistance, a temperature characteristic, a load characteristic, a cyclic use history data, or impedance.
Further, according to one aspect of the present invention, the battery management database records plural acquisition times and dates of the electrical characteristic data in association with the identification data. The battery capacity authentication unit authenticates the authentication capacity based on a temporal change of the electrical characteristic data.
Further, the battery management method according to the present invention is characterized by including a battery status acquisition step for acquiring secondary battery data including identification data that specifies and identifies a secondary battery and electrical characteristic data that indicates electrical characteristics of the secondary battery when connected, when charging or when discharging, a battery capacity authentication step for calculating a chargeable capacity of the secondary battery based on the electrical characteristic data and authenticating the chargeable capacity as an authentication capacity, a battery data management step for recording the identification data in association with the authentication capacity, a user management step for recording user data related to a user of the secondary battery in association with the identification data, and a user data modification step for modifying the association between the user data and the identification data.
Further, the program according to the present invention causes a computer to perform procedures including a battery status acquisition procedure for acquiring secondary battery data including identification data that specifies and identifies a secondary battery and electrical characteristic data that indicates electrical characteristics of the secondary battery when connected, when charging or when discharging, a battery capacity authentication procedure for calculating a chargeable capacity of the secondary battery based on the electrical characteristic data and authenticating the chargeable capacity as an authentication capacity, a battery data management procedure for recording the identification data in association with the authentication capacity, a user management procedure for recording user data related to a user of the secondary battery in association with the identification data, and a user data modification procedure for modifying the association between the user data and the identification data.
Effects of the Invention
The present invention can provide a battery management system, a battery management method, and a program that enables appropriate use of a secondary battery according to the deterioration and chargeable capacity of the secondary battery.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a block diagram schematically illustrating a configuration of a battery management system 100 according to the first embodiment.
FIG. 2 is a block diagram schematically illustrating a configuration of a battery 40 to be managed by a battery management system 100 according to the first embodiment.
FIG. 3 is a schematic diagram illustrating an example of the usage of a battery management system 100 according to the first embodiment.
FIG. 4 is a flowchart illustrating a procedure of a battery management method according to the first embodiment.
FIG. 5 is a block diagram schematically illustrating a configuration of a battery management system 110 according to the second embodiment.
FIG. 6 is a flowchart showing a procedure of battery distribution with a battery management method according to the second embodiment.
FIG. 7 is a schematic diagram illustrating an outline of an autonomous type battery station 10 according to the third embodiment.
FIG. 8 is a schematic diagram illustrating an outline of a battery replacement area 1000 according to the fourth embodiment.
MODES FOR CARRYING OUT THE INVENTION
First Embodiment
Hereinafter, embodiments of the present invention are described in detail with reference to the drawings. The same or equivalent components, members, and processes illustrated in the respective drawings are denoted by the same reference numerals, and duplicate descriptions are omitted as appropriate. FIG. 1 is a block diagram schematically illustrating a configuration of a battery management system 100 according to this embodiment. As illustrated in FIG. 1 , a battery management system 100 includes a battery station 10 , a management server 20 , and a user terminal 30 , each of which is connected to each other to be able to perform data communication.
The battery station 10 is externally supplied with electric power and is a device to be connected to the below-described battery (secondary battery) for charging, discharging, and permitting usage to a user. As illustrated in FIG. 1 , the <figure-callout id="10" label="battery station" filenames="US2024018680
TECHNICAL FIELD
The present invention relates to a battery management system, a battery management method, and a program.
BACKGROUND ART
In recent years, there is a growing use of electric vehicles, hybrid cars, and electric motorcycles using electric power as a power source for mobile vehicles (e.g., automobiles, motorcycles) and converting the power supplied from a secondary battery into kinetic energy. Further, the adoption rate of power-assisted bicycles using electric power as an auxiliary power source of the bicycle is also increasing.
Because these mobile vehicles use the electric power stored in the secondary battery mounted on the mobile vehicles, their travel distance is determined by the chargeable capacity of the secondary battery. In order to increase the travel distance of the mobile vehicle, it is effective to increase the capacity by increasing the size of the secondary battery. However, there is a problem that the increase in the weight of the secondary battery lowers energy efficiency. Thus, there is proposed a battery replacement method for extending travel distance by detachably mounting a secondary battery to a mobile vehicle and replacing the secondary battery having reduced chargeable capacity with a fully charged one.
With this battery replacement method, plural secondary batteries are charged and stored in a battery station, a user brings a mobile vehicle and replaces a used secondary battery, and a battery replacement fee or lease charge can be collected. Further, the replaced used secondary battery is fully charged at the battery station and replaced and used again by a subsequent user. However, the chargeable capacity of the secondary battery is known to deteriorate according to the environment and history of its usage. Even if the secondary battery is fully charged, the chargeable capacity is lower compared to that when it was new. Therefore, with such battery replacement method, battery management becomes necessary in view of the deterioration of the secondary battery.
For example, Patent Document 1 describes an operation server connected to a battery replacement device via a network server to manage deterioration by measuring the number of times the secondary battery was charged and removing any secondary battery charged for a predetermined number of times from those that are lendable.
RELATED ART DOCUMENTS
Patent Documents
Patent Document 1: Patent Publication No. 6708805
SUMMARY OF THE INVENTION
Problem to be Solved by the Invention
With the conventional art described in Cited Document 1, although the lower limit of the chargeable capacity of a lendable secondary battery can be set by the operation server, the user cannot grasp the actual chargeable capacity or travel distance of the rechargeable battery that has been lent. Therefore, it is difficult for the user to continue running beyond the capacity of the set lower limit, and the battery had to be replaced even when there is surplus of remaining electric power of the secondary battery. Further, since there are individual differences in the secondary battery depending on the manufacturing conditions and usage conditions, it is difficult to accurately grasp the chargeable capacity by way of the deterioration management based on the number of times of charging.
Further, even in applications where the travel distance of the mobile vehicle assumed by the user is short and a small amount of remaining electricity is enough, only a secondary battery exceeding the lower limit set by the operation server is can be lent. Thus, it is difficult to sufficiently make effective use of the secondary battery.
In view of the above-described conventional problems, it is an object of the present invention to provide a battery management system, a battery management method, and a program capable of appropriately using a secondary battery according to the deterioration and chargeable capacity of the secondary battery.
Means for Solving the Problem
In order to solve the above-mentioned problems, the battery management system according to the present invention performs charging and discharging of a secondary battery connected to a battery station and manages the secondary battery with a management server communicably connected to the battery station. The battery management system is characterized by including a battery status acquisition unit that acquires, as secondary battery data, identification data that specifies and identifies the secondary battery and electrical characteristic data that indicates electrical characteristics of the secondary battery when connected, when charging or when discharging, a battery capacity authentication unit that calculates a chargeable capacity of the secondary battery based on the electrical characteristic data and authenticates the chargeable capacity as an authentication capacity, a battery management database unit provided in the management server and records the identification data in association with the authentication capacity, a user management database that records user data related to a user of the secondary battery in association with the identification data, and a user data modification unit that modifies the association between the user data and the identification data.
With the battery management system of the present invention, it is possible to appropriately use a secondary battery by accurately grasping the deterioration and chargeable capacity of the secondary battery because the chargeable capacity of the secondary battery is calculated and the chargeable capacity is authenticated as an authentication capacity based on electrical characteristic data acquired from the secondary battery.
Further, according to one aspect of the present invention, the user data modification unit modifies the association of the user data and the identification data based on the authentication capacity.
Further, according to one aspect of the present invention, there is further provided a user terminal communicably connected to the battery station or the management server. The user data modification unit modifies the association between the user data and the identification data based on an input result from the user terminal.
Further, according to one aspect of the present invention, there is further provided a distribution server communicably connected to the management serve. The distribution server includes a presentation unit that presents the authentication capacity of the secondary battery identified by the identification data to another user, and a receiving unit that receives acquisition offer data from the other user. The user data modification unit modifies the association between the user data and the identification data based on the acquisition offer data.
Further, according to one aspect of the present invention, the electrical characteristic data includes one of a full charge voltage, a full discharge voltage, an open circuit voltage, a closed circuit voltage, a charge characteristic, a discharge characteristic, an internal resistance, a temperature characteristic, a load characteristic, a cyclic use history data, or impedance.
Further, according to one aspect of the present invention, the battery management database records plural acquisition times and dates of the electrical characteristic data in association with the identification data. The battery capacity authentication unit authenticates the authentication capacity based on a temporal change of the electrical characteristic data.
Further, the battery management method according to the present invention is characterized by including a battery status acquisition step for acquiring secondary battery data including identification data that specifies and identifies a secondary battery and electrical characteristic data that indicates electrical characteristics of the secondary battery when connected, when charging or when discharging, a battery capacity authentication step for calculating a chargeable capacity of the secondary battery based on the electrical characteristic data and authenticating the chargeable capacity as an authentication capacity, a battery data management step for recording the identification data in association with the authentication capacity, a user management step for recording user data related to a user of the secondary battery in association with the identification data, and a user data modification step for modifying the association between the user data and the identification data.
Further, the program according to the present invention causes a computer to perform procedures including a battery status acquisition procedure for acquiring secondary battery data including identification data that specifies and identifies a secondary battery and electrical characteristic data that indicates electrical characteristics of the secondary battery when connected, when charging or when discharging, a battery capacity authentication procedure for calculating a chargeable capacity of the secondary battery based on the electrical characteristic data and authenticating the chargeable capacity as an authentication capacity, a battery data management procedure for recording the identification data in association with the authentication capacity, a user management procedure for recording user data related to a user of the secondary battery in association with the identification data, and a user data modification procedure for modifying the association between the user data and the identification data.
Effects of the Invention
The present invention can provide a battery management system, a battery management method, and a program that enables appropriate use of a secondary battery according to the deterioration and chargeable capacity of the secondary battery.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a block diagram schematically illustrating a configuration of a battery management system 100 according to the first embodiment.
FIG. 2 is a block diagram schematically illustrating a configuration of a battery 40 to be managed by a battery management system 100 according to the first embodiment.
FIG. 3 is a schematic diagram illustrating an example of the usage of a battery management system 100 according to the first embodiment.
FIG. 4 is a flowchart illustrating a procedure of a battery management method according to the first embodiment.
FIG. 5 is a block diagram schematically illustrating a configuration of a battery management system 110 according to the second embodiment.
FIG. 6 is a flowchart showing a procedure of battery distribution with a battery management method according to the second embodiment.
FIG. 7 is a schematic diagram illustrating an outline of an autonomous type battery station 10 according to the third embodiment.
FIG. 8 is a schematic diagram illustrating an outline of a battery replacement area 1000 according to the fourth embodiment.
MODES FOR CARRYING OUT THE INVENTION
First Embodiment
Hereinafter, embodiments of the present invention are described in detail with reference to the drawings. The same or equivalent components, members, and processes illustrated in the respective drawings are denoted by the same reference numerals, and duplicate descriptions are omitted as appropriate. FIG. 1 is a block diagram schematically illustrating a configuration of a battery management system 100 according to this embodiment. As illustrated in FIG. 1 , a battery management system 100 includes a battery station 10 , a management server 20 , and a user terminal 30 , each of which is connected to each other to be able to perform data communication.
The battery station 10 is externally supplied with electric power and is a device to be connected to the below-described battery (secondary battery) for charging, discharging, and permitting usage to a user. As illustrated in FIG. 1 , the battery station 10 includes a data communication unit 11 , a battery connection unit 12 , a charge/ discharge unit 13 , a battery management unit 14 , an operation unit 15 , and a display unit 16 . The configuration of the battery station 10 is not limited in particular. It may be a device with a large housing that is installed in a public area or a small size device that is installed in each home.
The data communication unit 11 is a part that performs data communication with the outside of the battery station 10 . The configuration of the data communication unit 11 is not limited in particular. It may be provided by wired connection or wireless connection. The communication protocol applied is not limited in particular, and a publicly known communication protocol may be used. Further, a publicly known data communication path may be used as the path for allowing the data communication unit 11 to perform data communication, such as an optical fiber network, a satellite communication network, a telephone line network, or a mobile communication network.
The battery connection unit 12 is a part that ensures at least electrical connection with the below-described battery. By connecting the battery to the battery connection unit 12 , electric power can be exchanged between the battery station 10 and the battery. Further, the battery connection unit 12 preferably includes a locking mechanism or the like for restricting the attachment and detachment of the battery. Although FIG. 1 illustrates an example in which a single battery connection unit 12 is provided in the battery station 10 , plural battery connection units 12 may be provided in the battery station 10 .
The charge/ discharge unit 13 is a part that performs charging and discharging of the battery by controlling the exchange of electric power between the battery connected to the battery connection unit 12 . Here, the âcharging and discharging of the batteryâ includes performing a charging operation by supplying electric power to at least the battery, but may also include performing a discharging operation in which power is extracted by consuming the power stored in the battery. The power extracted in the discharging operation of the battery may be supplied to the outside of the battery station 10 from an output unit provided separately.
The battery management unit 14 is a part that stores, for example, data of the battery connected to the battery connection unit 12 and the operation status of the charge/ discharge unit 13 . In addition, the battery management unit 14 controls the removal of the battery 40 from the battery connection unit 12 along with controlling the charge/discharge operation by the charge/ discharge unit 13 .
The operation unit 15 is an input device that allows a user or an operator to control the operation of the battery station 10 . The configuration of the operation unit 15 is not limited in particular. For example, a publicly known device such as a lever, a button, a dial, a mouse, a keyboard or a touch-panel type input device may be used. The user or the operator operates the operation unit 15 to remove the battery, perform charging and discharging operations of the battery, select an action from presented options, and perform a fee payment operation or the like.
The display unit 16 is a part that displays data managed by the battery management unit 14 and options for action selection. A publicly known image display device may be used. The specific configuration of the display unit 16 is not limited in particular. For example, a publicly known type such as a liquid crystal display device or an organic EL display device may be used. In a case where a touch-panel type input device is used as the operation unit 15 , a display function of the display unit 16 may be installed into the operation unit 15 .
The management server 20 is a data processing device connected to plural battery stations 10 and plural user terminals 30 in a data communicable manner and manages batteries according to a predetermined procedure. As illustrated in FIG. 1 , the management server 20 includes a data communication unit 21 , a battery status acquisition unit 22 , a battery capacity authentication unit 23 , a battery management database unit 24 , a user management database unit 25 , and a user data modification unit 26 .
The data communication unit 21 is a part that performs data communication with the outside of the management server 20 . The configuration of the data communication unit 21 is not limited in particular. It may be provided by wired connection or wireless connection. The communication protocol applied is not limited in particular, and a publicly known communication protocol may be used. Further, a publicly known data communication path may be used as the path for allowing the data communication unit 21 to perform data communication, such as an optical fiber network, a satellite communication network, a telephone line network, or a mobile communication network.
The battery status acquisition unit 22 is a part that acquires data of the battery connected to the battery connection unit 12 as secondary battery data. The secondary battery data includes identification data that specifies and identifies the connected battery and electrical characteristic data indicating the electrical characteristics of the battery when connected, when charging, or when discharging. The acquisition of the secondary battery data by the battery status acquisition unit 22 is performed by acquiring data regarding the status and operation of the battery connection unit 12 , the charge/ discharge unit 13 , and the battery management unit 14 transmitted from the data communication unit 11 to the data communication unit 21 . FIG. 1 illustrates an example in which the battery status acquisition unit 22 is provided in the management server 20 . However, the battery status acquisition unit 22 may be provided in the battery station 10 . In such a case, the secondary battery data acquired by the battery status acquisition unit 22 is transmitted from the data communication unit 11 to the management server 20 via the data communication unit 21 .
The battery capacity authentication unit 23 is a part that calculates the chargeable capacity of the battery based on the electrical characteristic data included in the secondary battery data acquired by the battery status acquisition unit 22 and authenticates the calculated capacity as authentication capacity. Here, the chargeable capacity indicates the amount of electric power that can be extracted from full charge to full discharge when full charge and full discharge of the battery are set.
The battery management database unit 24 is a database that records the identification data assigned to each battery in association with the authentication capacity calculated and authenticated by the battery capacity authentication unit 23 . The user management database unit 25 is a database that records the user data related to the user of the battery in association with the identification data assigned to each battery. The user data modification unit 26 is a part that modifies the association between the user data and the identification data based on the below-described various data and records it in the user management database unit 25 .
The user terminal 30 is a data device operated by a user of the battery and is data-communicably connected to the battery station 10 and the management server 20 for performing data display and operation input. The user terminal 30 corresponds to the user terminal in the present invention. As illustrated in FIG. 1 , the user terminal 30 includes a data communication unit 31 , an input/ output unit 32 , a display unit 33 , and a storage unit 34 . The configuration of the user terminal 30 is not limited in particular. For example, publicly known devices such as a portable telephone terminal device, a portable computer device, or a stationary type computer device may be used. Further, the user terminal 30 may be combined with the battery station 10 to form a single unit or integrated with a mobile object that is driven by the battery 40 .
The data communication unit 31 is a part that performs data communication with the outside of the user terminal 30 . The configuration of the data communication unit 31 is not limited in particular. It may be provided by wired connection or wireless connection. The communication protocol applied is not limited in particular, and a publicly known communication protocol may be used. Further, a publicly known data communication path may be used as the path for allowing the data communication unit 31 to perform data communication, such as an optical fiber network, a satellite communication network, a telephone line network, or a mobile communication network.
The input/ output unit 32 is a device for allowing the user to input a predetermined command and outputting data. The configuration of the input/ output unit 32 is not limited in particular. For example, a publicly known device such as a lever, a button, a dial, a mouse, a keyboard, a touch-panel type input device, a speaker, or an indicator may be used.
The display unit 33 is an image display device for presenting an image or character data to the user. The specific configuration of the display unit 33 is not limited in particular. For example, a publicly known device such as a liquid crystal display device or an organic EL display device may be used. In a case where a touch-panel type input device is used as the input/ output unit 32 , a display function of the display unit 33 may be installed in the input/ output unit 32 .
The storage unit 34 is a storage device that includes a recording medium capable of reading and writing data for recording data to be exchanged via the data communication unit 31 or a program enabling the user terminal 30 to execute a predetermined procedure. As the recording medium included in the storage unit 34 , a publicly known device such as a magnetic recording medium, a magneto-optical recording medium, an optical recording medium, or a nonvolatile storage device may be used.
The functions of the respective parts of the above-described battery station 10 , the management server 20 , and the user terminal 30 are realized by executing a predetermined program by hardware which performs a predetermined operation, a central processing unit (CPU: Central Processing Unit), and a storage device.
FIG. 2 is a block diagram schematically illustrating a configuration of a battery 40 that is managed by the battery management system 100 according to this embodiment. As illustrated in FIG. 2 , the battery 40 includes a secondary battery cell 41 , a BMS (Battery Management System) 42 , a station connection unit 43 , a storage unit 44 , and a data communication unit 45 . The battery 40 of this embodiment is to be connected to the battery connection portion 12 of the battery station 10 , charged/discharged, removed from the battery station 10 , and mounted on a mobile object for supplying electric power to the mobile object. The battery 40 corresponds to the secondary battery of the present invention.
The secondary battery cell 41 is a member that is packaged with, for example, electrolyte that accumulates and releases electric charges by an electrochemical reaction, positive and negative electrodes, and a separator. The battery 40 includes plural secondary battery cells 41 that are connected in series or parallel to each other to obtain a desired output. The electrolyte included in the secondary battery cell 41 is not limited in particular. For example, publicly known materials such as various lithium-ion batteries, nickel metal hydride batteries, or nickel zinc batteries may be used. Further, the electrolyte may be a liquid or a solid.
The BMS 42 is a member electrically connected to the outside of the battery 40 and to the secondary battery cell 41 for controlling the charging and discharging of the secondary battery cell 41 . The BMS 42 measures a voltage value and a current value of each of the secondary battery cells 41 , records data such as their charging history and discharging history, and controls the connection with outside and the secondary battery cells 41 based on the data.
The station connection unit 43 is a part that ensures at least electrical connection with the battery connection unit 12 of the battery station 10 . By connecting the station connection unit 43 to the battery connection unit 12 , electric power can be exchanged between the battery station 10 and the battery. Further, it is preferable for the station connection unit 43 to have a mechanically connecting part that corresponds to a locking mechanism provided in the battery connection unit 12 .
The storage unit 44 is a storage device that includes a recording medium capable of reading and writing data for recording data to be exchanged via the data communication unit 45 or identification data for identifying each of the batteries 40 . As the recording medium included in the storage unit 44 , a publicly known device such as a magnetic recording medium, a magneto-optical recording medium, an optical recording medium, or a nonvolatile storage device may be used.
The data communication unit 45 is a part that performs communication of data acquired by the BMS 42 or data recorded in the storage unit 44 with the battery station 10 connected via the station connection unit 43 . Further, a wired or wireless communication device may be used as the <figure-callout
CLAIMS
Claims ( 20 )
1 . A battery management system for performing charging and discharging of a secondary battery connected to a battery station and managing the secondary battery with a management server communicably connected to the battery station, the battery management system comprising:
a battery status acquisition unit configured to acquire, as secondary battery data, identification data that specifies and identifies the secondary battery and electrical characteristic data that indicates electrical characteristics of the secondary battery when connected, when charging or when discharging; a battery capacity authentication unit configured to calculate a chargeable capacity of the secondary battery based on the electrical characteristic data and authenticate the chargeable capacity as an authentication capacity; a battery management database unit provided in the management server and configured to record the identification data in association with the authentication capacity; a user management database configured to record user data related to a user of the secondary battery in association with the identification data; and a user data modification unit configured to modify the association between the user data and the identification data.
2 . The battery management system according to claim 1 ,
wherein the user data modification unit is configured to modify the association between the user data and the identification data based on the authentication capacity.
3 . The battery management system according to claim 1 ,
further comprising: a user terminal communicably connected to the battery station or the management server, wherein the user data modification unit is configured to modify the association between the user data and the identification data based on an input result from the user terminal.
4 . The battery management system according to claim 1 ,
further comprising: a distribution server communicably connected to the management server;
wherein the distribution server includes a presentation unit configured to present the authentication capacity of the secondary battery identified by the identification data to another user, and a receiving unit configured to receive acquisition offer data from the other user,
wherein the user data modification unit is configured to modify the association between the user data and the identification data based on the acquisition offer data.
5 . The battery management system according to claim 1 ,
wherein the electrical characteristic data includes one of a full charge voltage, a full discharge voltage, an open circuit voltage, a closed circuit voltage, a charge characteristic, a discharge characteristic, an internal resistance, a temperature characteristic, a load characteristic, a cyclic use history data, or impedance.
6 . The battery management system according to claim 1 ,
wherein the battery management database is configured to record a plurality of acquisition times and dates of the electrical characteristic data in association with the identification data, wherein the battery capacity authentication unit is configured to authenticate the authentication capacity based on a temporal change of the electrical characteristic data.
7 . A battery management method comprising:
a battery status acquisition step for acquiring secondary battery data including identification data that specifies and identifies a secondary battery and electrical characteristic data that indicates electrical characteristics of the secondary battery when connected, when charging or when discharging; a battery capacity authentication step for calculating a chargeable capacity of the secondary battery based on the electrical characteristic data and authenticating the chargeable capacity as an authentication capacity; a battery data management step for recording the identification data in association with the authentication capacity; a user management step for recording user data related to a user of the secondary battery in association with the identification data; and a user data modification step for modifying the association between the user data and the identification data.
8 . A non-transitory computer readable recording medium on which a battery management program is recorded, the battery management program comprising:
a battery status acquisition procedure for acquiring secondary battery data including identification data that specifies and identifies a secondary battery and electrical characteristic data that indicates electrical characteristics of the secondary battery when connected, when charging or when discharging; a battery capacity authentication procedure for calculating a chargeable capacity of the secondary battery based on the electrical characteristic data and authenticating the chargeable capacity as an authentication capacity; a battery data management procedure for recording the identification data in association with the authentication capacity; a user management procedure for recording user data related to a user of the secondary battery in association with the identification data; and a user data modification procedure for modifying the association between the user data and the identification data.
9 . The battery management system according to claim 2 ,
further comprising: a user terminal communicably connected to the battery station or the management server,
wherein the user data modification unit is configured to modify the association between the user data and the identification data based on an input result from the user terminal.
10 . The battery management system according to claim 2 ,
further comprising: a distribution server communicably connected to the management server;
wherein the distribution server includes a presentation unit configured to present the authentication capacity of the secondary battery identified by the identification data to another user, and a receiving unit configured to receive acquisition offer data from the other user,
wherein the user data modification unit is configured to modify the association between the user data and the identification data based on the acquisition offer data.
11 . The battery management system according to claim 3 ,
further comprising: a distribution server communicably connected to the management server;
wherein the distribution server includes a presentation unit configured to present the authentication capacity of the secondary battery identified by the identification data to another user, and a receiving unit configured to receive acquisition offer data from the other user,
wherein the user data modification unit is configured to modify the association between the user data and the identification data based on the acquisition offer data.
12 . The battery management system according to claim 9 ,
further comprising: a distribution server communicably connected to the management server;
wherein the distribution server includes a presentation unit configured to present the authentication capacity of the secondary battery identified by the identification data to another user, and a receiving unit configured to receive acquisition offer data from the other user,
wherein the user data modification unit is configured to modify the association between the user data and the identification data based on the acquisition offer data.
13 . The battery management system according to claim 2 ,
wherein the electrical characteristic data includes one of a full charge voltage, a full discharge voltage, an open circuit voltage, a closed circuit voltage, a charge characteristic, a discharge characteristic, an internal resistance, a temperature characteristic, a load characteristic, a cyclic use history data, or impedance.
14 . The battery management system according to claim 3 ,
wherein the electrical characteristic data includes one of a full charge voltage, a full discharge voltage, an open circuit voltage, a closed circuit voltage, a charge characteristic, a discharge characteristic, an internal resistance, a temperature characteristic, a load characteristic, a cyclic use history data, or impedance.
15 . The battery management system according to claim 4 ,
wherein the electrical characteristic data includes one of a full charge voltage, a full discharge voltage, an open circuit voltage, a closed circuit voltage, a charge characteristic, a discharge characteristic, an internal resistance, a temperature characteristic, a load characteristic, a cyclic use history data, or impedance.
16 . The battery management system according to claim 9 ,
wherein the electrical characteristic data includes one of a full charge voltage, a full discharge voltage, an open circuit voltage, a closed circuit voltage, a charge characteristic, a discharge characteristic, an internal resistance, a temperature characteristic, a load characteristic, a cyclic use history data, or impedance.
17 . The battery management system according to claim 2 ,
wherein the battery management database is configured to record a plurality of acquisition times and dates of the electrical characteristic data in association with the identification data, wherein the battery capacity authentication unit is configured to authenticate the authentication capacity based on a temporal change of the electrical characteristic data.
18 . The battery management system according to claim 3 ,
wherein the battery management database is configured to record a plurality of acquisition times and dates of the electrical characteristic data in association with the identification data, wherein the battery capacity authentication unit is configured to authenticate the authentication capacity based on a temporal change of the electrical characteristic data.
19 . The battery management system according to claim 4 ,
wherein the battery management database is configured to record a plurality of acquisition times and dates of the electrical characteristic data in association with the identification data, wherein the battery capacity authentication unit is configured to authenticate the authentication capacity based on a temporal change of the electrical characteristic data.
20 . The battery management system according to claim 5 ,
wherein the battery management database is configured to record a plurality of acquisition times and dates of the electrical characteristic data in association with the identification data, wherein the battery capacity authentication unit is configured to authenticate the authentication capacity based on a temporal change of the electrical characteristic data.
US18/287,781
2021-05-14
2022-03-29
Battery management system, battery management method, and program
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Battery management system, battery management method and program
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Battery management system, battery management method, and program
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Battery management system, battery management method, and program
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Toyota Jidosha Kabushiki Kaisha
Server
CN121545262A
( en )
*
2026-01-16
2026-02-17
æ¹åå¯çµç§ææéå ¬å¸
A management method and system for intelligent battery swapping cabinets
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Rechargeable battery vending machine and its management method
JPH11150809A
( en )
*
1997-09-15
1999-06-02
Honda Motor Co Ltd
Battery rental system
JP6345291B1
( en )
2017-03-22
2018-06-20
æ¬ç°æç å·¥æ¥æ ªå¼ä¼ç¤¾
Information processing apparatus, program, and information processing method
JP6844859B2
( en )
2018-09-05
2021-03-17
æ±æ´ã·ã¹ãã æ ªå¼ä¼ç¤¾
Battery reuse support system
2021
2021-05-14
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JP2021082809A
patent/JP7760145B2/en
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US18/287,781
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2026-02-17
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A management method and system for intelligent battery swapping cabinets
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