JP5668753B2 - Secondary battery management system, battery system, secondary battery management method, and secondary battery management program - Google Patents

Description

  The present invention relates to a secondary battery management system, a battery system, a secondary battery management method, and a secondary battery management program for managing the state of a secondary battery mounted on an electric vehicle or the like.

  Examples of the electric vehicle equipped with the secondary battery include an electric vehicle and a hybrid vehicle equipped with both an internal combustion engine and a motor. In order to drive such an electric vehicle with electricity, it is necessary to charge the mounted secondary battery from an external charger. When charging the secondary battery, it is generally necessary to perform charge control in accordance with the characteristics unique to the battery.

  Moreover, when using a secondary battery for a long period of time, it is possible that charging / discharging is performed repeatedly. If charging / discharging is repeated, the performance of the secondary battery deteriorates, and depending on the deterioration conditions, the secondary battery may generate heat and ignite. It is necessary to monitor the deterioration status when using a secondary battery in order to avoid a great deal of damage to secondary battery users.

  Patent Document 1 describes a deterioration degree calculation device that determines deterioration of a battery mounted on an electric vehicle. In the device described in Patent Document 1, when a secondary battery mounted on an electric vehicle is charged by a power source outside the electric vehicle, a battery control unit (BCU: Battery Control Unit) mounted on the electric vehicle is based on current integration. The charge capacity and the capacity change due to the change in the open circuit voltage value are calculated, and the degree of deterioration is estimated by comparing these.

  Patent Document 2 describes a maintenance management method for a storage battery. In the management method described in Patent Document 2, the usage state of the storage battery is constantly monitored, and transmitted measurement data is received via a communication line and stored in a server. When a storage battery requiring maintenance management is specified, the management center automatically reports that fact to the user.

  Patent Document 3 describes a battery management system that centrally manages battery life. In the system described in Patent Document 3, the battery life is managed based on the number of times of reception of information indicating the end of charging of the battery.

  Patent Document 4 describes an in-vehicle information collection system that collects vehicle operation information. In the system described in Patent Document 4, information that is sequentially generated as the car is operated is temporarily stored, and the stored information is stored after a predetermined time has elapsed or whenever the accumulated amount exceeds a predetermined amount. Automatically transmit to DSRC (Dedicated Short Range Communication) OBE.

JP 2009-71986 JP 2003-123847 A JP 2008-79456 A JP 2008-129790 A

  However, when performing deterioration management of the secondary battery in the electric vehicle as in the arithmetic device described in Patent Document 1, since the memory capacity and processing performance are limited, for example, the time-dependent change in the degree of deterioration of the secondary battery, There was a problem that a large amount of data processing and complicated processing could not be performed. In addition, when a new analysis method is established, it is necessary to change software in each electric vehicle, which causes a problem of lack of flexibility.

  On the other hand, in the methods and systems described in Patent Literature 2 to Patent Literature 4, the measured data is transmitted to the server or the DSRC on-board device, and the data processing is performed on the server or the DSRC on-vehicle device side. It is possible to perform complicated processing. However, the maintenance management method described in Patent Document 2 constantly monitors the usage state of the storage battery. Therefore, when the storage battery to be managed is not always connected, there is a problem that the storage battery cannot be properly managed.

  Moreover, in the battery management system described in Patent Document 3, it is assumed that charging is always performed using a charger capable of measuring the number of times of charging and the connection time. Therefore, the number of times and time when the charging process is performed on a charger that does not have these functions are not considered. Therefore, when a plurality of chargers having different functions are used, there is a problem that the battery cannot be appropriately managed.

  In the system described in Patent Document 4, it is assumed that a device holding information can periodically transmit information to the external device by wireless communication. Therefore, there is a problem that a device that does not have such a wireless communication function cannot transmit retained information to an external device and cannot appropriately manage collected information.

  Then, an object of this invention is to provide the secondary battery management system, battery system, secondary battery management method, and secondary battery management program which can manage appropriately the state of the measured secondary battery.

  A secondary battery management system according to the present invention includes a battery system having a secondary battery and a charger that performs power supply processing to the secondary battery of the battery system, and the battery system measures information about the state of the secondary battery. Measurement information storage means for storing the measurement information, measurement information registration means for measuring the state of the secondary battery and storing the measurement information in the measurement information storage means, and whether the charger is connected to the communication network Connection determination means for determining whether the measurement information registration means transmits the measurement information stored in the measurement information storage means to the charger on the condition that the charger is connected to the communication network. Features.

  The battery system according to the present invention includes a secondary battery, measurement information storage means for storing measurement information that is information obtained by measuring the state of the secondary battery, and measuring the state of the secondary battery and measuring the measurement information in the measurement information storage means. Measurement information registration means for storing information, and connection determination means for determining whether or not a charger for performing power supply processing to the secondary battery is connected to the communication network, and the measurement information registration means is connected to the charger. The measurement information stored in the measurement information storage means is transmitted to the charger on the condition that it is connected to a communication network.

  In the secondary battery management method according to the present invention, the battery system having the secondary battery measures the state of the secondary battery, and the battery system measures the measurement information that is information indicating the state of the secondary battery measured. The battery information is stored in the measurement information storage means, and the battery system determines whether or not a charger that performs power supply processing to the secondary battery of the battery system is connected to the communication network. The measurement information stored in the measurement information storage means is transmitted to the charger on the condition that it is connected to the charger.

  A secondary battery management program according to the present invention is a secondary battery management applied to a computer having a secondary battery and having measurement information storage means for storing measurement information which is information obtained by measuring the state of the secondary battery. A battery charger for performing a measurement information registration process for measuring a state of a secondary battery in a computer and storing the measurement information in a measurement information storage unit, and a power supply process for the secondary battery in a communication network. The connection determination process for determining whether or not it is connected is executed, and the measurement information stored in the measurement information storage means is charged in the measurement information registration process on the condition that the charger is connected to the communication network. It is characterized by making it transmit to a device.

  According to the present invention, the measured state of the secondary battery can be appropriately managed.

It is a block diagram which shows the example of the secondary battery management system in the 1st Embodiment of this invention. It is a block diagram which shows the other example of the secondary battery management system in the 1st Embodiment of this invention. It is a block diagram which shows the example which detailed the battery system. It is a block diagram which shows the other example which detailed the battery system. 3 is a block diagram showing an example in which the first charger 5 is detailed. FIG. It is a block diagram which shows the example which detailed the 2nd charger. It is a block diagram which shows the example which detailed the secondary battery management server. It is a block diagram which shows the example which detailed the vehicle owner management server. FIG. 6 is a sequence diagram illustrating an example of an operation when the charger 5 is connected to the battery system 2. FIG. 6 is a sequence diagram showing an example of an operation when the charger 7 is connected to the battery system 2. It is a sequence diagram which shows the example of operation | movement in the case of connecting the charger 5 to the battery system 2 in the state in which the charge log is accumulate | stored. It is a block diagram which shows the example which detailed the charger in 2nd embodiment. It is a sequence diagram which shows the example of operation | movement in the case of connecting the charger 5 in the operation mode which does not charge. It is a block diagram which shows the example of the minimum structure of the secondary battery management system by this invention. It is a block diagram which shows the example of the minimum structure of the battery system by this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Embodiment 1. FIG.
The secondary battery management system according to the present invention includes a battery system having a secondary battery, and a charger that is connected to the battery system and performs a power supply process to the secondary battery. In the secondary battery management system according to the first embodiment of the present invention, the battery system is either a charger that can communicate with another device via a communication network, or a charger that does not communicate with another device. It shall be connected to a charger. Hereinafter, a case where the battery system is connected to a charger that can communicate with another device and a case where the battery system is connected to a charger that does not communicate with another device will be described separately.

  First, a configuration in the case where the battery system in the present embodiment is connected to a charger that can communicate with other devices via a communication network will be described. FIG. 1 is a block diagram showing an example of a secondary battery management system in the first embodiment of the present invention. The secondary battery management system illustrated in FIG. 1 includes a battery system 2 and a charger 5. The battery system 2 is mounted on the electric vehicle 1. Further, power is supplied to the charger 5 from a first commercial power source 6 (hereinafter referred to as a commercial power source 6).

  The charger 5 and the battery system 2 are connected by a power supply line 3 a and a communication line 4. The charger 5 supplies power to the battery system 2 through the power supply line 3a. The charger 5 communicates with the battery system 2 via the communication line 4. Here, the information indicating the charging procedure is information used in preparation for charging performed between the charger 5 and the battery system 2 until charging is started. Hereinafter, a process in which information representing the charging procedure is transmitted and received between the charger 5 and the battery system 2 is referred to as a charging preparation process. The contents of the charging preparation process will be described later.

  In the following description, a case where the power supply line (that is, the feeder line 3a) and the communication line (that is, the communication line 4) are separated will be described. However, the power supply line and the communication line may not be separated and may be a single line. When power supply and communication are performed using one line, for example, a communication signal may be superimposed on the power line.

  The charger 5 is connected to the secondary battery management server 9 and the vehicle owner management server 10 via the communication network 99.

  The secondary battery management server 9 manages secondary battery information. Specifically, the secondary battery management server 9 manages the secondary battery in association with the electric vehicle 1 on which the secondary battery is mounted. Further, the secondary battery management server 9 is information for specifying a server (specifically, the vehicle owner management server 10) for managing information related to the owner of the electric vehicle 1 (hereinafter referred to as owner management server specification). Information). Examples of the owner management server specifying information include address information of the server. However, the owner management server specifying information is not limited to server address information.

  The vehicle owner management server 10 manages information related to the owner of the electric vehicle 1. The vehicle owner management server 10 manages, for example, contact information of the owner of the electric vehicle 1.

  This embodiment demonstrates the case where the server which manages the information of a secondary battery, and the server which manages the information regarding the owner of the electric vehicle 1 are implement | achieved by another apparatus. However, these servers may be realized by different devices or may be realized by the same device. When these servers are realized by the same device, the device does not have to manage the owner management server specifying information.

  Next, a configuration when the battery system in the present embodiment is connected to a charger that does not communicate with other devices will be described. FIG. 2 is a block diagram showing another example of the secondary battery management system in the first embodiment of the present invention. The secondary battery management system illustrated in FIG. 2 includes a battery system 2 and a charger 7. The battery system 2 is mounted on the electric vehicle 1, and power is supplied to the charger 7 from a second commercial power source 8 (hereinafter referred to as a commercial power source 8). The secondary battery management system illustrated in FIG. It is the same. The charger 7 supplies power to the battery system 2 through the power supply line 3b.

  In the following description, a charger that includes the communication line 4 and can communicate with other devices via a communication network is referred to as a first charger (or a first charger 5). A charger that does not include a communication line with the battery system 2 and does not communicate with other devices is referred to as a second charger (or second charger 7).

  FIG. 3 is a block diagram illustrating a detailed example of the battery system 2 illustrated in FIG. 1. That is, the battery system 2 illustrated in FIG. 3 shows an example in the case of being connected to the first charger 5. The battery system 2 in the present embodiment includes a secondary battery 11, a control unit 12, a measurement unit 13, a storage unit 14, a communication unit 15, a storage unit 16, and an in-vehicle charger 17.

  The measurement part 13 measures a charging condition. Specifically, the measurement unit 13 measures the state of the secondary battery such as a current value, a voltage value, and a temperature while the secondary battery is being charged. However, the state of the secondary battery which the measurement part 13 measures is not limited to the said content. Hereinafter, information representing the state of the secondary battery measured by the measurement unit 13 is referred to as a charging log. Note that the charging log includes information for identifying the measured secondary battery (hereinafter referred to as secondary battery identification information). The charging log includes the date and time at the time of charging, the voltage value, current value and temperature of the secondary battery at the time of charging, the state of the secondary battery at the start and completion of charging, and the like. However, the charging log may not include all of these information. Then, the measurement unit 13 stores the measured charging log in the storage unit 14.

  The measurement unit 13 may collect a charge log in a state where the electric vehicle 1 on which the battery system 2 is mounted is activated, or may collect a charge log in a stopped state. Moreover, the measurement part 13 may extract | collect a charge log in the state of both the state in which the electric vehicle 1 carrying the battery system 2 is starting, and the state which has stopped.

  In general, the battery deteriorates not only when the electric vehicle 1 is started but also when it is stopped (stored), and the degree of deterioration depends on the temperature during storage. Therefore, not only when the electric vehicle 1 is activated, but also when the electric vehicle 1 is stopped, it is possible to grasp the battery deterioration status in more detail by collecting the charge log together with the temperature at the time of storage. .

  The accumulation unit 14 stores information (that is, a charge log) that represents the state of the secondary battery measured by the measurement unit 13. The accumulation unit 14 is realized by a memory or the like, for example.

  The communication unit 15 communicates with the charger 5 via the communication line 4.

  The memory | storage part 16 hold | maintains temporarily the control parameter at the time of charge. The control parameter at the time of charging is information determined by the control unit 12 based on the state of the secondary battery at the time of charging, such as a current value at the time of charging. The control parameters at the time of charging are determined based on, for example, the remaining amount and temperature of the secondary battery. However, the method for determining the control parameter at the time of charging is not limited to the above method.

  The in-vehicle charger 17 converts power from the charger and supplies power to the secondary battery. The on-vehicle charger 17 is realized by, for example, an AC / DC converter. It is assumed that the current supplied from the charger 5 illustrated in FIG. 3 does not need to be converted. Therefore, the on-vehicle charger 17 is not used in the battery system 2 illustrated in FIG. As described above, when it is not necessary to convert the current, the battery system 2 may not include the in-vehicle charger 17. The on-vehicle charger 17 may not be included in the battery system 2 and may be realized by hardware different from the battery system 2.

  The control unit 12 controls charging / discharging of the secondary battery 11. Specifically, the control unit 12 measures the voltage of the secondary battery 11, the ambient temperature, the current value at the time of charging, etc., and controls the charging / discharging of the secondary battery 11 according to the value or the charger. Generates control information to be transmitted. The control information includes conditions such as a current value necessary for power supply (hereinafter referred to as power supply conditions) in addition to a charge start instruction and charge stop processing for the secondary battery 5.

  Furthermore, the control unit 12 determines whether or not the charger is connected to the communication network. When the charger is connected to the communication network, the control unit 12 transmits the charging log stored in the storage unit 14 to the charger.

  When the control unit 12 determines that the charger is connected to the communication network, the control unit 12 does not store the charge log measured with respect to the measurement unit 13 in the storage unit 14 but stores the charge log measured by the measurement unit 13. You may transmit to a charger as it is. That is, in this case, the control unit 12 transmits at least one of the charging log stored in the storage unit 14 and the charging log measured by the measuring unit 13 to the charger.

  Note that the control unit 12 determines whether the charger is connected to the communication network by checking whether the charger is connected to the communication network using a predefined communication protocol. Also good. For example, when a charger is connected to the battery system 2, the control unit 12 transmits a signal according to a defined communication protocol, and when a response to the signal is returned, the communication unit 12 communicates with the charger. It may be determined that it is connected to the network.

  In the example shown in FIG. 3, the charger 5 is connected to a communication network. Therefore, the control unit 12 transmits the charge log stored in the storage unit 14 to the charger 5.

  When the charger is not connected to the communication network, the charging log stored in the storage unit 14 is not transmitted. In such a case, for example, when the electric vehicle 1 is activated, the control unit 12 may determine whether or not to transmit a charge log (update request) from the amount of charge log stored in the storage unit 14. When it is determined that the charging log needs to be transmitted, the control unit 12 may display the fact on a display (not shown) mounted on the electric vehicle 1 to notify the driver.

  Next, the case where the battery system 2 is connected to the second charger 7 will be described. FIG. 4 is a block diagram illustrating a detailed example of the battery system 2 illustrated in FIG. The configuration of the battery system 2 is the same as that shown in FIG.

  However, the second charger 7 is a charger in which the communication unit 15 is not connected to the communication line and does not communicate with other devices. Further, it is assumed that the current supplied from the second charger 7 illustrated in FIG. 4 needs to be converted. Therefore, in the battery system 2 illustrated in FIG. 4, after the on-vehicle charger 17 is connected to the second charger 7 via the feeder line 3 b and the current fed from the second charger 7 is converted, The current is supplied to the secondary battery 11.

  FIG. 5 is a block diagram illustrating a detailed example of the first charger 5 illustrated in FIG. 1. The first charger 5 includes a power supply unit 18, a control unit 19, and a communication unit 20.

  The power supply unit 18 converts the AC power of the commercial power supply 6 into DC power, adjusts the output level, and outputs it to the battery system 2. Specifically, the power supply unit 18 outputs a direct current to the battery system 2 based on the output level adjusted by the control unit 19.

  The control unit 19 adjusts the output level of the power supply unit 18. Specifically, when receiving a power supply condition together with a power supply instruction from the battery system 2, the control unit 19 adjusts the output level based on the power supply condition. For example, when the current value for charging is received from the battery system 2 as the power supply condition, the control unit 19 adjusts the current value by changing the resistance value of a constant current circuit (not shown). However, the method of adjusting the output level is not limited to the method of changing the resistance value of the low current circuit. The control unit 19 may adjust the output level of the power supply unit 18 using a widely known method.

  The communication unit 20 communicates with the battery system 2 or the secondary battery management server 9.

  FIG. 6 is a block diagram illustrating a detailed example of the second charger 7 illustrated in FIG. 4. The second charger 7 includes a power supply unit 21.

  The power supply unit 21 outputs the AC power of the commercial power supply 8 to the battery system 2 while changing the connector shape. That is, the power supply unit 21 is formed with a connector for connecting to the commercial power supply 8 and the battery system 2, and the power supply unit 21 converts the alternating current from the commercial power supply 8 connected to one connector to the other connector. Is output to the battery system 2.

  FIG. 7 is a block diagram showing an example in which the secondary battery management server 9 is detailed. The secondary battery management server 9 includes a battery management unit 22, a communication unit 23, a storage unit 24, an analysis unit 25, and a notification unit 26.

  The battery management unit 22 holds an identifier of the secondary battery 11 (that is, secondary battery identification information) and information on the electric vehicle 1 on which the secondary battery 11 is mounted. The information on the electric vehicle 1 includes information that can identify the electric vehicle 1 and owner management server specifying information (for example, address information of a server that manages information on the electric vehicle 1). The identifier of the secondary battery 11 and the information on the electric vehicle 1 are stored in advance in the battery management unit 22 by the user or the like.

  Note that the secondary battery may be reused. Therefore, the battery management unit 22 may store the address information of the server that manages the reuse status when the secondary battery is reused, instead of the address information of the vehicle owner management server 10. In this case, it is possible to trace until the secondary battery is discarded by referring to the information stored in the server that manages the reuse status.

  The communication unit 23 communicates with the charger 5.

  The storage unit 24 stores the information provided from the charger 5. Specifically, the storage unit 24 stores the charge log received by the charger 5 from the battery system 2 for each secondary battery identification information. However, the content stored in the storage unit 24 is not limited to the charge log.

  The analysis unit 25 analyzes the state of the secondary battery based on the charge log stored in the storage unit 24. For example, the analysis unit 25 compares past charge logs and analyzes the deterioration state of the secondary battery based on the change with time of the charge logs. The analysis unit 25 may use, for example, a binary value indicating “with / without secondary battery deterioration” as the analysis result, or may use a fine particle size value such as “degradation degree of 30%” as the analysis result.

  Hereinafter, another method in which the analysis unit 25 analyzes the state of the secondary battery will be described. First, the analysis unit 25 extracts the past charge log history stored in the storage unit 24 based on the secondary battery identification information included in the charge log notified from the battery system 2, and extracts the extracted charge log. From this history, a battery voltage curve (charging characteristic curve) is generated. And the analysis part 25 determines the state of a secondary battery by comparing the charge log which the measurement part 13 measured, and the produced | generated battery voltage curve. For example, the analysis unit 25 refers to the slope value of the battery voltage curve under the same condition (for example, when the voltage value and the current value are the same) from the past charging log having the same secondary battery identification information, and You may perform deterioration determination by comparing.

  Furthermore, the analysis unit 25 periodically inspects whether or not the charge log is registered. Specifically, when the charging log is not stored in the storage unit 24 for a period longer than a predetermined period, the analyzing unit 25 may set the analysis result as “no charging log is recorded for a predetermined period”.

  The notification unit 26 notifies the vehicle owner management server 10 of the analysis result analyzed by the analysis unit 25.

  FIG. 8 is a block diagram showing an example in which the vehicle owner management server 10 is detailed. The vehicle owner management server 10 includes an owner management unit 27, a communication unit 28, a vehicle management unit 29, and a determination unit 30.

  The owner management unit 27 stores the identifier of the electric vehicle 1 and information on the owner who owns the electric vehicle 1. For example, the owner management unit 27 stores the contact information of the owner as the owner information.

  The communication unit 28 communicates with the secondary battery management server 10.

  The vehicle management unit 29 stores the analysis result analyzed by the secondary battery management server 9 for each vehicle. For example, the vehicle management unit 29 may store a binary value indicating “with / without secondary battery deterioration” as an analysis result, or may store a fine granularity value such as “deterioration degree 30%”. Good.

  The determination unit 30 determines whether to notify the owner based on the information stored in the vehicle management unit 29. Note that conditions for determining whether notification is possible are determined in advance, and the determination unit 30 determines whether notification is possible depending on whether the condition is satisfied.

  For example, when the analysis result is represented by a binary value indicating “with / without secondary battery deterioration” and the condition for notification is defined as “when there is secondary battery deterioration”, the determination unit 30 Depending on this condition, it may be determined whether notification is possible. In addition, when the analysis result is expressed as a ratio indicating the degree of deterioration and the condition of notification availability is defined as “when the degree of deterioration exceeds 70%,” the determination unit 30 performs notification according to this condition. You may judge whether it is possible.

  Furthermore, if the notification availability condition is defined as “when the charge log has not been updated for a predetermined period”, the determination unit 30 has received the notification of the above contents from the secondary battery management server 9 as a determination result. It may be determined whether or not notification is possible. However, the conditions for determining whether notification is possible are not limited to the above-described contents. For example, a condition corresponding to the characteristics of the battery system may be determined in advance.

  In addition, the owner management part 27 and the vehicle management part 29 are implement | achieved by the magnetic disk etc., for example.

  The control unit 12 and the measurement unit 13 are realized by a CPU of a computer that operates according to a program (secondary battery management program). For example, the program may be stored in the storage unit 16 of the battery system 2, and the CPU may read the program and operate as the control unit 12 and the measurement unit 13 according to the program. Further, the control unit 12 and the measurement unit 13 may be realized by dedicated hardware, respectively.

  Next, the operation will be described. First, the case where the 1st charger 5 provided with the communication line 4 is connected to the battery system 2 is demonstrated. FIG. 9 is a sequence diagram illustrating an example of an operation when the charger 5 having a communication function is connected to the battery system 2 in the first embodiment.

  When the electric vehicle 1 is connected to the charger 5, processing such as connection recognition and notification of charging capability is performed between the battery system 2 and the charger 5 as charge preparation processing (step S1). Specifically, the control unit 12 determines whether or not the charger 5 is connected to the communication network, and performs a confirmation process as to whether or not the charger 5 is connected to each other. In addition, as a charge preparation process, the control unit 12 of the battery system 2 notifies the charger 5 of information indicating the presence or absence of log accumulation, and whether the control unit 19 of the charger 5 can collect logs. Or notify the battery system 2. However, the charge preparation process is not limited to these contents.

  In the example illustrated in FIG. 9, it is assumed that the charger 5 can collect logs and the battery system 2 does not accumulate logs. In this case, for example, when the control unit 12 of the battery system 2 notifies the charger 5 that there is no log accumulation, the control unit 19 of the charger 5 recognizes that there is no log accumulation in the battery system 2. (Step S2).

  When the battery system 2 notifies the charger 5 of a power supply condition and a power supply start instruction (step S3), the charger 5 starts power supply based on the instructed condition (step S4, step S5). When the power supply is started, the battery system 2 monitors the charging status during charging and collects a charging log (step S6). When the state of charge becomes a desired state, the battery system 2 notifies the charger 5 of a power supply stop instruction (step S7), and the charger 5 stops power supply (step S8).

  When the power feeding is stopped, the control unit 12 of the battery system 2 notifies the charger 5 together with the secondary battery identification information (step S9), and the control unit 19 of the charger 5 further provides the information. Next battery management server 9 is notified (step S10).

  In addition, when the protocol when the battery system 2 transmits the charging log to the charger 5 and the protocol when transmitting the charging log from the charger 5 to the secondary battery management server 9 are different, the charger 5 serves as a gateway. It may work. Further, for example, when the charging log is transmitted from the battery system 2 to the charger 5 according to the IP protocol, and further the charging log is transmitted from the charger 5 to the secondary battery management server 9 according to the protocol, the charger 5 May operate as a router.

  When the secondary battery management server 9 receives the charge log, the analysis unit 25 stores the charge log for each secondary battery identification information. And the analysis part 25 analyzes the change with time of a charge log by comparing the past charge logs (step S11).

  Next, the analysis unit 25 searches the information stored in the vehicle management unit 29 for the address of the vehicle owner management server 10 in which the information of the electric vehicle 1 on which the secondary battery is mounted is registered ( Step S12). And the analysis part 25 notifies an analysis result with respect to the searched vehicle owner management server 10 (step S13).

  When the vehicle owner management server 10 receives the analysis result from the secondary battery management server 9, the determination unit 30 determines whether or not to notify the vehicle owner of the necessity for maintenance of the secondary battery (step). S14). If it determines with notifying, the determination part 30 will search the owner of the electric vehicle 1 from the owner management part 27 (step S15). Then, the retrieved contact information is notified of the content indicating the necessity of maintenance for the secondary battery (step S16).

  For example, the control unit (not shown) of the vehicle owner management server 10 may notify the retrieved contact information by e-mail. Alternatively, document notification may be performed manually to the searched contact. However, the method of performing notification is not limited to these methods.

  Next, the case where the 2nd charger 7 which is not provided with the communication line is connected to the battery system 2 is demonstrated. FIG. 10 is a sequence diagram illustrating an example of an operation when the charger 7 having no communication function is connected to the battery system 2 in the first embodiment.

  When the electric vehicle 1 is connected to the charger 7, the control unit 12 determines whether or not the charger 7 is connected to the communication network. Here, since the charger 7 is not connected to the communication network, the charging log is not transmitted. Thereafter, the charger 7 starts to supply power to the battery system 2 (step S21, step S22). Since there is no communication line between the battery system 2 and the charger 7, the state during charging is monitored and a charge log is accumulated (step S23). Thereafter, when the charging state of the secondary battery is in a desired state, the charger 7 stops power feeding (step S24). Thereafter, when only the charger 7 is used, the charging log is continuously accumulated in the accumulating unit 14 by repeating the processes of steps S21 to S24 between the electric vehicle 1 and the charger 7.

  On the other hand, the analysis unit 25 of the secondary battery management server 9 periodically inspects whether or not the charge log is updated (step S31). When the charge log is not updated for a certain period, the analysis unit 25 identifies a secondary battery for which no charge log is updated, and the address of the vehicle owner management server 10 that manages information on the electric vehicle equipped with the secondary battery. Is retrieved from the battery management unit 22 (step S32). And the analysis part 25 notifies the test result with respect to the electric vehicle to the searched vehicle owner management server 10 (step S33). For example, the analysis unit 25 notifies the vehicle owner management server 10 that manages the electric vehicle of the inspection result that the charging log of the electric vehicle does not exist for a certain period of time.

  When the vehicle owner management server 10 receives the inspection result from the secondary battery management server 9, the determination unit 30 determines whether to notify the vehicle owner of a charge log upload request or the like (step S34). If it determines with notifying, the determination part 30 will search the owner of the electric vehicle 1 from the owner management part 27 (step S35). Then, a notification indicating the necessity of uploading the charging log or the like is sent to the searched contact (step S36).

  For example, the control unit (not shown) of the vehicle owner management server 10 may notify the retrieved contact information by e-mail. Alternatively, document notification may be performed manually to the searched contact. However, the method of performing notification is not limited to these methods.

  Next, the operation when the battery system 2 is accumulating the charge log and the charger (that is, the first charger 5) including the communication line 4 is connected to the battery system 2 will be described. FIG. 11 is a sequence diagram illustrating an example of an operation when a charger having a communication function is connected to the battery system 2 in a state where a charge log is accumulated in the first embodiment.

  When the electric vehicle 1 is connected to the charger 5, processing such as connection recognition and notification of charging capability is performed between the battery system 2 and the charger 5 as charge preparation processing (step S1). In the example shown in FIG. 11, it is assumed that the charger 5 can collect logs and the battery system 2 has log accumulation. In this case, for example, when the control unit 12 of the battery system 2 notifies the charger 5 that there is log accumulation, the control unit 19 of the charger 5 recognizes that there is log accumulation in the battery system 2. (Step S41).

  When the battery system 2 notifies the charger 5 of a power supply condition and a power supply start instruction (step S3), the charger 5 starts power supply based on the instructed condition (step S4, step S5). When the power supply is started, the battery system 2 monitors the charging status during charging and collects a charging log (step S6). At the same time, the battery system 2 notifies the charger 5 of the past charge log using, for example, the available bandwidth of the communication line being charged (step S42). When the charger 5 receives the past charge log, the control unit 19 notifies the secondary battery management server 9 of the received charge log (step S43).

  Thereafter, the process from when the power supply stop instruction is given by the battery system 2 to when the owner of the electric vehicle 1 is notified is the same as the process from step S7 to step S16 in FIG.

  As described above, according to the present embodiment, the measurement unit 13 built in the electric vehicle 1 measures the charging characteristics such as the voltage and current when the secondary battery 11 is charged. Further, the control unit 12 determines whether or not the communication network can be used, and if possible, provides the measured information to a predetermined server. On the other hand, when the communication network cannot be used, the control unit 12 temporarily stores the charge log in the storage unit 14 in the electric vehicle 11 and stores the charge log in the stored charge log server when the communication network can be used. provide. By doing in this way, since it becomes possible to collect continuously the charging characteristic of the secondary battery 11 mounted in the electric vehicle 1 with a server, the state of the measured secondary battery can be managed appropriately.

  Furthermore, in this embodiment, since the charger 5 performs communication processing, the server on the communication network continuously collects the charging log of the electric vehicle 1 without adding a new network interface to the electric vehicle 1. It becomes possible. In addition, when communication is not possible, the charge log is stored in the storage unit 14, so that the charge log of the electric vehicle 1 can be continuously collected even if the battery system is not always connected to the communication network. Furthermore, since the charging log of the secondary battery is continuously collected, the deterioration state of the secondary battery can be appropriately estimated. Therefore, since it becomes possible to prompt the user to check the secondary battery, an improvement in safety can be expected.

Embodiment 2. FIG.
Next, the secondary battery management system in the second embodiment of the present invention will be described. This embodiment demonstrates the case where the charger which can switch between the state which performs charge, and the state which does not charge is connected to a battery system. In the present embodiment, it is assumed that the charger can communicate with other devices via a communication network.

  That is, the configuration of the secondary battery management system and the battery system in the present embodiment is the same as the configuration illustrated in FIGS. 1 and 3, and thus the description of the function of each configuration is omitted.

  FIG. 12 is a block diagram illustrating a detailed example of the charger 5 in the present embodiment. The charger 5 in this embodiment includes a power supply unit 18, a control unit 19, a communication unit 20, and an input unit 31. That is, it differs from the first embodiment in that the charger 5 includes the input unit 31.

  The input unit 31 inputs an operation state (hereinafter referred to as an operation mode) of the designated charger. The operation mode is selected from an operation mode in which charging is performed and an operation mode in which charging is not performed. The input unit 31 is realized by, for example, a switch that specifies an operation mode.

  The control unit 19 operates according to the operation mode of the charger input by the input unit 31. Specifically, the control part 19 performs the charge preparation process according to the necessity of charge. For example, when an operation mode in which charging is not performed is selected, the control unit 19 suppresses power output.

  Note that the power supply unit 18 and the communication unit 20 are the same as those in the first embodiment, and a description thereof will be omitted.

  Next, the operation will be described. FIG. 13 is a sequence diagram illustrating an example of an operation when the charger 5 is connected in an operation mode in which charging is not performed.

  Before connecting the electric vehicle 1 and the charger 5, the operation mode of the charger is selected (step S51). Hereinafter, a case where an operation mode in which charging is not performed is selected will be described.

  When the electric vehicle 1 is connected to the charger 5 in a state where the operation mode in which charging is not performed is specified, a charge preparation process is executed between the battery system 2 and the charger 5 (step S52). In addition, when the operation mode in which charging is not performed is selected, it is only necessary to suppress the power output. Therefore, in the charging execution process in the present embodiment, as in the first embodiment, the battery system 2 and the charger 5 are not connected. Thus, the same processing as step S1 illustrated in FIG. 9 may be executed.

  Specifically, the control unit 12 determines whether or not the charger 5 is connected to the communication network, and performs a confirmation process as to whether or not the charger 5 is connected to each other. In addition, as a charge preparation process, the control unit 12 of the battery system 2 notifies the charger 5 of information indicating the presence or absence of log accumulation, and whether the control unit 19 of the charger 5 can collect logs. Or notify the battery system 2.

  In the example illustrated in FIG. 13, it is assumed that the charger 5 can collect logs and the battery system 2 has log accumulation. In this case, for example, when the control unit 12 of the battery system 2 notifies the charger 5 that there is no log accumulation, the control unit 19 of the charger 5 recognizes that there is log accumulation in the battery system 2. (Step S41).

  When the charging preparation process is completed, the battery system 2 notifies the charger 5 of the past charging log using the communication line (step S42). When the charger 5 receives the past charge log, the control unit 19 notifies the secondary battery management server 9 of the received charge log (step S43).

  Thereafter, the process until the secondary battery management server 9 analyzes the charging log, transmits the analysis result to the vehicle owner management server 10 and notifies the owner is performed in step S11 in FIG. 9 and FIG. To the process up to step S16.

  Note that when the charging mode is selected in step S51, the process illustrated in FIG. 9 described in the first embodiment is performed.

  Next, the minimum configuration of the present invention will be described. FIG. 14 is a block diagram showing an example of the minimum configuration of the secondary battery management system according to the present invention. FIG. 15 is a block diagram showing an example of the minimum configuration of the battery system according to the present invention.

  The secondary battery management system illustrated in FIG. 14 includes a battery system 80 (for example, the battery system 2) having the secondary battery 81 (for example, the secondary battery 11), and a power supply process to the secondary battery 81 of the battery system 80. And a charger 90 (for example, charger 5).

  The battery system 80 measures the state of the secondary battery 81 and the measurement information storage means 82 (for example, the storage unit 14) that stores the measurement information (for example, the charge log) that is the information obtained by measuring the state of the secondary battery 81. Then, a measurement information registration unit 83 (for example, the measurement unit 13) that stores the measurement information in the measurement information storage unit 82, and a connection determination unit 84 (for example, that determines whether or not the charger 90 is connected to the communication network). And a control unit 12).

  The measurement information registration unit 83 transmits the measurement information stored in the measurement information storage unit 82 to the charger 90 on the condition that the charger 90 is connected to the communication network.

  The battery system illustrated in FIG. 15 is a battery system 80 (for example, battery system 2) having a secondary battery 81 (for example, the secondary battery 11). The contents of the measurement information storage means 82, the measurement information registration means 83, and the connection determination means 84 are the same as the contents shown in FIG.

  With such a configuration, the measured state of the secondary battery can be appropriately managed.

  In addition, the measurement information registration unit 83 may transmit the measured measurement information to the charger 90 without being stored in the measurement information storage unit 82 on the condition that the charger 90 is connected to the communication network. .

  Further, the battery system 80 is mounted on a moving body (for example, the electric vehicle 1), and the measurement information registration unit 83 measures the state of the secondary battery 81 and stores the measurement information while the moving body is not activated. Measurement information may be stored in the means 82. By doing in this way, it becomes possible to grasp | ascertain the deterioration condition of a battery in detail.

  Moreover, you may provide the secondary battery state management means (for example, secondary battery management server 9) which manages the state of the secondary battery 81 via a communication network. In this case, the charger 90 may include measurement information transmission means (for example, the control unit 12) that transmits measurement information received from the battery system 80 to the secondary battery state management means. And the secondary battery state management means identifies the management means (for example, vehicle owner management server 10) which manages the moving body for every moving body (for example, electric vehicle 1) which mounts the secondary battery 81. Based on the management means identification information storage means (for example, the battery management unit 22) for storing the management means identification information (for example, the address of the vehicle owner management server 10), which is information, and the measurement information received from the charger 90, Based on the management means identification information stored in the management means identification information storage means, the analysis means 25 for analyzing the state of the secondary battery and the mobile body management means for managing the mobile body on which the secondary battery to be analyzed is mounted. An analysis result transmission unit (for example, a notification unit 26) that identifies and transmits an analysis result by the analysis unit to the specified mobile body management unit may be included. With such a configuration, it is possible to appropriately analyze the state of the secondary battery mounted for each moving body.

  Moreover, you may provide the mobile body management means (for example, vehicle owner management server 10) which manages the mobile body (for example, electric vehicle 1) which mounts the secondary battery 81. FIG. Then, based on the analysis result received from the analysis result transmitting unit, the mobile unit management unit determines whether or not to notify the owner of the mobile unit equipped with the secondary battery 81 to be analyzed (notification necessity determination unit ( For example, the determination unit 30) may be included. With such a configuration, it is possible to appropriately determine whether or not to notify the owner of the mobile body of the state of the secondary battery mounted for each mobile body.

  Moreover, the mobile body management means may be provided with an owner information storage means (for example, the owner management section 27) that stores information on the owner who owns the mobile body. Based on the information stored in the holder information storage means, the notification destination of the mobile body is notified on the condition that the notification necessity determination section determines that the mobile body owner needs to be notified. And the owner may be notified. With such a configuration, it becomes possible to notify the owner of the mobile body equipped with the secondary battery according to the state of the secondary battery.

  In addition, the measurement information registration means, as measurement information, information indicating the date and time at the time of charging, information indicating the voltage value, current value and temperature of the secondary battery at the time of charging, and the secondary battery at the start and completion of charging At least one piece of information indicating the state may be transmitted to the charger 90 together with information for identifying the secondary battery.

  The battery system 80 and the charger 90 are connected using an information communication interface (for example, the communication line 4) that is an interface for communicating information representing the charging procedure (for example, information transmitted and received in the charging preparation process). It may be.

  In addition, the battery system 80 may include a charging control unit (for example, the control unit 12) that controls charging of the secondary battery 81. Moreover, the charger 90 may be provided with an input means (for example, the input unit 31) for inputting the designated operating state of the charger. Then, when the charging control unit inputs an operation state indicating that the input unit does not charge (for example, an operation mode in which charging is not performed), the charging control unit suppresses charging of the secondary battery, and the measurement information registration unit 83 The measurement information may be transmitted to the charger 90 via the information communication interface.

  In addition, although a part or all of said embodiment can be described also as the following additional remarks, it is not restricted to the following.

(Additional remark 1) It has the battery system which has a secondary battery, and the charger which performs the electric power feeding process to the secondary battery of the said battery system, The said battery system is the measurement information which is the information which measured the state of the secondary battery Measurement information storage means for storing, measurement information registration means for measuring the state of the secondary battery and storing the measurement information in the measurement information storage means, and whether or not the charger is connected to a communication network A connection determination unit for determining, and the measurement information registration unit transmits the measurement information stored in the measurement information storage unit to the charger on the condition that the charger is connected to a communication network. A secondary battery management system.

(Supplementary note 2) The measurement information registration means transmits the measured measurement information to the charger without storing it in the measurement information storage means on the condition that the charger is connected to the communication network. Next battery management system.

(Additional remark 3) The said battery system is mounted in a mobile body, and a measurement information registration means measures the state of a secondary battery, and memorize | stores measurement information in a measurement information storage means, even if the mobile body is not starting. The secondary battery management system according to appendix 1 or appendix 2.

(Additional remark 4) The secondary battery state management means which manages the state of a secondary battery via a communication network is provided, and a charger transmits the measurement information received from the battery system to the secondary battery state management means. An information transmission means, wherein the secondary battery state management means stores management means identification information, which is information for identifying the management means for managing the mobile body, for each mobile body equipped with the secondary battery. Information storage means, analysis means for analyzing the state of the secondary battery based on the measurement information received from the charger, and mobile body management means for managing the mobile body equipped with the secondary battery to be analyzed, From the supplementary note 1 including the analysis result transmitting means for specifying the management means identification information stored in the management means identification information storage means and transmitting the analysis result by the analysis means to the specified mobile management means Rechargeable battery management system according to any one of serial 3.

(Additional remark 5) It has the mobile body management means which manages the mobile body which mounts a secondary battery, The said mobile body management means mounts the secondary battery of analysis object based on the analysis result received from the analysis result transmission means The secondary battery management system according to supplementary note 4, including notification necessity determination means for determining whether notification is required to the owner of the mobile body that has been performed.

(Supplementary Note 6) The mobile body management means includes a holder information storage means for storing information of the holder who holds the mobile body, and the notification necessity determination means determines that notification is required to the mobile body owner. The secondary battery management system according to appendix 5, wherein the notification destination of the owner of the mobile object is specified based on the information stored in the owner information storage means and the owner is notified on the condition .

(Supplementary note 7) Measurement information registration means, as measurement information, information indicating the date and time at the time of charging, information indicating the voltage value, current value and temperature of the secondary battery at the time of charging, secondary at the start and completion of charging The secondary battery management system according to any one of supplementary notes 1 to 6, wherein at least one piece of information indicating the state of the battery is transmitted to the charger together with information for identifying the secondary battery.

(Supplementary note 8) The secondary battery according to any one of supplementary note 1 to supplementary note 7, wherein the battery system and the charger are connected using an information communication interface that is an interface for communicating information representing a charging procedure. Management system.

(Supplementary note 9) The battery system includes a charge control unit that controls charging of the secondary battery, the charger includes an input unit that inputs an operation state of the designated charger, and the charge control unit includes Supplementary note 8 that suppresses charging of the secondary battery when the input unit inputs an operation state indicating that charging is not performed, and the measurement information registration unit transmits the measurement information to the charger via the information communication interface. The secondary battery management system described.

(Supplementary Note 10) Secondary battery, measurement information storage means for storing measurement information that is information obtained by measuring the state of the secondary battery, and measuring the state of the secondary battery and measuring the measurement information in the measurement information storage means Measurement information registration means for storing information, and connection determination means for determining whether or not a charger that performs power supply processing to the secondary battery is connected to a communication network, and the measurement information registration means includes: A battery system, wherein the measurement information stored in the measurement information storage means is transmitted to the charger on the condition that the charger is connected to a communication network.

(Supplementary note 11) The battery according to supplementary note 10, wherein the measurement information registration unit transmits the measured measurement information to the charger without storing the measurement information in the measurement information storage unit on condition that the charger is connected to the communication network. system.

(Additional remark 12) The battery system which has a secondary battery measures the state of a secondary battery, The measurement information which is the information which shows the state of the secondary battery which the said battery system measured to measurement information measurement information storage means Storing, and determining whether the battery system is connected to a communication network or not, and the battery system connects the charger to the communication network. On the condition that the measurement information is stored, the measurement information stored in the measurement information storage means is transmitted to the charger.

(Supplementary note 13) The secondary battery management method according to supplementary note 12, wherein the measured measurement information is transmitted to the charger without being stored in the measurement information storage means on condition that the charger is connected to the communication network.

(Supplementary note 14) A secondary battery management program applied to a computer having a secondary battery and having measurement information storage means for storing measurement information which is information obtained by measuring the state of the secondary battery, A charger for performing a measurement information registration process for measuring a state of the secondary battery in the computer and storing the measurement information in the measurement information storage unit, and a power supply process for the secondary battery is connected to a communication network. The measurement information stored in the measurement information storage means is executed on the condition that the charger is connected to a communication network in the measurement information registration process. A secondary battery management program, characterized by causing a charger to transmit.

(Supplementary note 15) Supplementary note 14 causes the computer to transmit the measured measurement information to the charger without storing it in the measurement information storage means on the condition that the charger is connected to the communication network in the measurement information registration process. The described secondary battery management program.

  Although the present invention has been described with reference to the embodiments and examples, the present invention is not limited to the above embodiments and examples. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention.

  This application claims the priority on the basis of the JP Patent application 2010-101224 for which it applied on April 26, 2010, and takes in those the indications of all here.

  The present invention is suitably applied to a secondary battery management system that manages the state of a secondary battery mounted on an electric vehicle or the like.

DESCRIPTION OF SYMBOLS 1 Electric vehicle 2 Battery system 3a, 3b Feeding line 4 Communication line 5 1st charger 6 1st commercial power supply 7 2nd charger 8 Second commercial power supply 9 Secondary battery management server 10 Vehicle owner management server 11 Secondary battery 12 Control unit (battery system 2)
13 Measurement unit 14 Storage unit 15 Communication unit (Battery system 2)
16 memory | storage part 17 vehicle-mounted charger 18 power supply part (1st charger 5)
19 Control unit (first charger 5)
20 Communication unit (first charger 5)
21 Power supply (second charger 7)
22 battery management unit 23 communication unit (secondary battery management server 9)
24 storage unit 25 analysis unit 26 notification unit 27 owner management unit 28 communication unit (vehicle owner management server 10)
29 Vehicle management part 30 Judgment part 31 Input part

Claims (15)

A battery system having a secondary battery;
A charger for performing a power supply process to the secondary battery of the battery system,
The battery system includes:
Measurement information storage means for storing measurement information which is information obtained by measuring the state of the secondary battery;
Measurement information registration means for measuring the state of the secondary battery and storing the measurement information in the measurement information storage means,
Connection determination means for determining whether or not the charger is connected to a communication network,
The secondary battery management characterized in that the measurement information registration means transmits the measurement information stored in the measurement information storage means to the charger on condition that the charger is connected to a communication network. system. The secondary battery management according to claim 1, wherein the measurement information registration means transmits the measured measurement information to the charger without being stored in the measurement information storage means on the condition that the charger is connected to the communication network. system. The battery system is mounted on a moving body,
3. The secondary battery management system according to claim 1, wherein the measurement information registration unit measures the state of the secondary battery and stores the measurement information in the measurement information storage unit even when the moving body is not activated. A secondary battery state management means for managing the state of the secondary battery via a communication network;
The charger
Measurement information transmission means for transmitting measurement information received from the battery system to the secondary battery state management means,
The secondary battery state management means includes
Management means identification information storage means for storing management means identification information, which is information for identifying management means for managing the mobile object, for each mobile object equipped with a secondary battery;
Based on the measurement information received from the charger, analysis means for analyzing the state of the secondary battery;
The mobile body management means for managing the mobile body on which the secondary battery to be analyzed is mounted is identified based on the management means identification information stored in the management means identification information storage means, and the identified mobile body management means The secondary battery management system according to any one of claims 1 to 3, further comprising an analysis result transmission unit that transmits an analysis result by the analysis unit. A mobile unit management means for managing a mobile unit equipped with a secondary battery is provided.
The mobile management means
5. The secondary battery according to claim 4, further comprising a notification necessity determination unit that determines necessity of notification to a holder of the mobile body equipped with the secondary battery to be analyzed based on the analysis result received from the analysis result transmission unit. Management system. The mobile body management means includes a holder information storage means for storing information of a holder who holds the mobile body,
The notification necessity determination means is based on the information stored in the owner information storage means on the condition that it is determined that notification is required to the owner of the mobile object. The secondary battery management system according to claim 5, which identifies and notifies the holder. Measurement information registration means, as measurement information, information indicating the date and time of charging, information indicating the voltage value, current value and temperature of the secondary battery at the time of charging, and the state of the secondary battery at the start and completion of charging. The secondary battery management system according to any one of claims 1 to 6, wherein at least one piece of information indicated is transmitted to a charger together with information for identifying a secondary battery. The secondary battery management system according to any one of claims 1 to 7, wherein the battery system and the charger are connected using an information communication interface that is an interface for communicating information representing a charging procedure. . Battery system
A charging control means for controlling charging of the secondary battery;
The charger
Comprising an input means for inputting an operating state of a designated charger;
The charging control unit suppresses charging to the secondary battery when the input unit inputs an operating state indicating that charging is not performed,
The secondary battery management system according to claim 8, wherein the measurement information registration means transmits the measurement information to the charger via the information communication interface. A secondary battery,
Measurement information storage means for storing measurement information which is information obtained by measuring the state of the secondary battery;
Measurement information registration means for measuring the state of the secondary battery and storing measurement information in the measurement information storage means;
Connection determination means for determining whether or not a charger for performing power supply processing to the secondary battery is connected to a communication network;
The battery information system characterized in that the measurement information registration means transmits the measurement information stored in the measurement information storage means to the charger on the condition that the charger is connected to a communication network. The battery system according to claim 10, wherein the measurement information registration unit transmits the measured measurement information to the charger without storing the measurement information in the measurement information storage unit on the condition that the charger is connected to the communication network. A battery system having a secondary battery measures the state of the secondary battery,
The battery system stores measurement information that is information indicating the state of the measured secondary battery in the measurement information measurement information storage means,
The battery system determines whether or not a charger for performing power supply processing to the secondary battery of the battery system is connected to a communication network;
A secondary battery management method, wherein the battery system transmits the measurement information stored in the measurement information storage means to the charger on the condition that the charger is connected to a communication network. . The secondary battery management method according to claim 12, wherein the measured measurement information is transmitted to the charger without being stored in the measurement information storage means on condition that the charger is connected to the communication network. A secondary battery management program applied to a computer having a secondary battery and having measurement information storage means for storing measurement information which is information obtained by measuring the state of the secondary battery,
In the computer,
A measurement information registration process for measuring the state of the secondary battery and storing the measurement information in the measurement information storage means; and
A connection determination process for determining whether or not a charger that performs a power supply process to the secondary battery is connected to a communication network;
In the measurement information registration process, on the condition that the charger is connected to a communication network, the measurement information stored in the measurement information storage means is transmitted to the charger. Management program. On the computer,
The secondary battery management according to claim 14, wherein in the measurement information registration process, the measured measurement information is transmitted to the charger without being stored in the measurement information storage means on the condition that the charger is connected to the communication network. program.

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