JP2016201247A - Battery deterioration degree monitoring device and battery deterioration degree monitoring method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a battery deterioration degree monitoring device for monitoring predicted date and time when a battery deterioration degree reaches a predetermined battery deterioration degree.SOLUTION: A battery deterioration degree monitoring device 6 includes a reception unit 612, a storage unit 62, a calculation unit 63, and a transmission unit 611. The reception unit 612 receives from a charger 3 a parameter value acquired on the basis of a current value supplied to a battery 212 from the charger 3, and acquisition date and time of the parameter value. The storage unit 62 stores the parameter value and the acquisition date and time. The calculation unit 63 calculates a deterioration prediction line of the battery 212 by using the parameter value and the acquisition date and time, and calculates predicted date and time when a deterioration degree of the battery 212 reaches a predetermined value by using the deterioration prediction line. The transmission unit 611 transmits data of the predicted date and time.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a battery deterioration degree monitoring apparatus and a battery deterioration degree monitoring method.

  In a vehicle using an electric motor such as an electric forklift, a hybrid car, or an electric vehicle, it is desired to accurately monitor the degree of deterioration of the mounted secondary battery. In the following description, the secondary battery may be simply referred to as a battery.

  As a method for monitoring the degree of battery deterioration, there is a method for monitoring based on the amount of battery discharge. However, the battery mounted on the vehicle is discharged during acceleration and traveling of the vehicle, and is charged by regeneration when the vehicle is decelerated and stopped. Therefore, since the amount of battery discharge changes depending on how the user uses the vehicle, it is difficult to accurately monitor the degree of battery deterioration based on the amount of battery discharge.

Moreover, as a method for monitoring the degree of battery deterioration, for example, a method for monitoring based on the amount of charge of a battery is known as in Patent Documents 1 to 3 described below.
In Patent Literature 1, the server device accumulates charging information such as the number of times of charging received from the charger or the accumulated charging current as charging information of each battery, and estimates the degree of deterioration of each battery from the accumulated charging information. When the difference in the degree of deterioration of each battery is equal to or greater than a predetermined threshold, the server device generates a notification screen that prompts replacement of the battery between the electric vehicles, and transmits the generated notification screen to the user client device.

  In Patent Document 2, the charging device calculates the constant current charging capacity rate of the battery based on the constant current charging time from the start of charging until the voltage change is detected, and determines the degree of battery capacity deterioration. When it is determined that the battery has reached the cycle life, the charging device notifies the user of an alarm.

  In Patent Document 3, the charge management device measures the number of times the battery is charged by the charging device. If the measurement count is equal to or greater than the guaranteed charge count, the charge management device notifies the user that the replacement of the battery is urged.

JP 2015-27223 A Japanese Patent Laid-Open No. 11-329512 JP 2013-186156 A

  However, Patent Documents 1 to 3 described above only monitor whether or not a predetermined battery deterioration level has been reached when data used for monitoring the battery deterioration level is obtained. That is, Patent Documents 1 to 3 do not monitor the predicted date and time when a predetermined battery deterioration level is reached based on already obtained data.

  An object of one aspect of the present invention is to provide a battery deterioration monitoring device that monitors a predicted date and time when a predetermined battery deterioration is reached.

The battery deterioration monitoring apparatus which is one form which concerns on this invention contains a receiving part, a memory | storage part, a calculation part, and a transmission part.
The receiving unit receives the parameter value acquired based on the current value supplied to the battery from the charger and the acquisition date and time of the parameter value from the charger. The storage unit stores the parameter value and the acquisition date / time. The calculation unit calculates a battery deterioration prediction line using the parameter value and the acquisition date and time, and uses the deterioration prediction line to calculate a prediction date and time when the battery deterioration degree reaches a predetermined value. A transmission part transmits the data of prediction date.

  According to the battery deterioration monitoring apparatus according to one aspect of the present invention, it is possible to monitor the predicted date and time when a predetermined battery deterioration is reached.

It is a figure which shows the structural example of the battery degradation degree monitoring system according to embodiment. It is a figure which shows an example of the management table according to embodiment. It is a figure which shows an example of the prediction display of the battery deterioration degree according to embodiment. It is a figure which shows the exemplary flow of the battery deterioration degree monitoring method according to embodiment.

Hereinafter, embodiments will be described in detail with reference to the drawings.
FIG. 1 is a diagram illustrating a configuration example of a battery deterioration monitoring system according to the embodiment. As shown in FIG. 1, the battery deterioration monitoring system 1 includes a vehicle 2, a charger 3, an access communication network 4, the Internet 5, a server device 6, and terminal devices 7 (7a to 7c). In FIG. 1, one vehicle 2, one charger 3, and three terminal devices 7 a to 7 c are shown, but the number of vehicles 2, chargers 3, and terminal devices 7 is as follows. Each may be arbitrary.

  The vehicle 2 is, for example, an electric forklift, a hybrid car, or an electric car. The vehicle 2 includes a battery pack 21. The battery pack 21 includes a battery control unit (ECU (Electronic Control Unit)) 211 and a battery 212.

The battery 212 is a secondary battery, for example, a lithium ion battery.
A battery control unit (ECU) 211 monitors and controls the state of the battery 212. For example, the battery control unit (ECU) 211 acquires state information of the battery 212 at predetermined time intervals from the start of charging to the end of charging.

  Specifically, for example, the battery control unit (ECU) 211 acquires the charge capacity of the battery 212 as the state information of the battery 212. The acquired charge capacity is the capacity currently stored in the battery 212, and is the sum of the remaining capacity at the start of charging and the charge amount (integrated current amount) from the charge start time to the current time. The battery control unit (ECU) 211 acquires the remaining capacity of the battery 212 at the start of charging. Further, the battery control unit (ECU) 211 detects the current value supplied from the charger 3 to the battery 212, and integrates the detected current value during the charging time from the charging start time to the current time. The charge amount (integrated current amount) at the current date and time is acquired. The battery control unit (ECU) 211 acquires the charge capacity at the current date and time by adding the acquired charge amount (integrated current amount) to the remaining capacity at the start of charging. As described above, the charging capacity is a parameter value acquired based on the current value supplied from the charger 3 to the battery 212. As will be described later, the acquired parameter value is used for monitoring the deterioration degree of the battery 212.

  Depending on the configuration of the battery deterioration level monitoring system 1, the battery control unit (ECU) 211 may acquire the charge amount (integrated current amount) of the battery 212 as the state information of the battery 212. As can be understood from the above description, the charge amount (integrated current amount) is a parameter value acquired based on the current value supplied from the charger 3 to the battery 212.

The battery control unit (ECU) 211 transmits an ID (Identification Data) of the battery 212, status information (for example, parameter value), and status information acquisition date and time to the charger 3.
The charger 3 is a device that charges the battery 212. The charger 3 includes a communication unit 31, a charge control unit (ECU) 32, and a charging circuit 33. The communication unit 31 includes a communication control unit (ECU) 311 and a communication module 312.

  The charging control unit (ECU) 32 receives the ID of the battery 212, status information (for example, parameter value), and status information acquisition date and time from the battery control unit (ECU) 211 connected via the connector. The charging control unit (ECU) 32 controls the charging operation of the charging circuit 33 based on the received state information. The charging circuit 33 charges the battery 212 connected through the connector according to the control of the charging control unit (ECU) 32.

  Further, the charge control unit (ECU) 32 acquires operation information of the charger 3. For example, the charge control unit (ECU) 32 acquires the state flag of the charger 3 at the acquisition date and time of parameter values such as the charge capacity and the charge amount (integrated current amount). The state flag is an example of operation information of the charger 3 and represents an operation state of the charger 3 such as charging or waiting. For example, in the CCCV (Constant Current-Constant Voltage) charging method, when the charging circuit 33 starts supplying a predetermined current, the charging control unit (ECU) 32 changes the state flag from standby to charging. Thereafter, when the terminal voltage of the battery 212 decreases to a current value that reaches a predetermined value and the charging circuit 33 stops supplying the current, the charging control unit (ECU) 32 changes the state flag from charging to standby. As described above, the status flag is a parameter value acquired based on the current value supplied from the charger 3 to the battery 212.

  The charge control unit (ECU) 32 outputs the ID of the battery 212, the state information, the acquisition date and time of the state information, and the operation information of the charger 3 to the communication control unit (ECU) 311. For example, the charge control unit (ECU) 32 outputs the ID of the battery 212, the parameter value, and the acquisition date and time of the parameter value to the communication control unit (ECU) 311. The parameter value to be output is, for example, one or more of a charge capacity, a charge amount (integrated current amount), and a status flag.

  A communication control unit (ECU) 311 controls data communication with the server device 6 via the communication module 312. For example, the communication control unit (ECU) 311 controls the communication module 312 to transmit the input ID of the battery 212, the parameter value, and the acquisition date and time of the parameter value to the server device 6.

  The communication module 312 transmits / receives various data to / from the server device 6 under the control of the communication control unit (ECU) 311. For example, the communication module 312 transmits the ID of the battery 212, the parameter value, and the acquisition date and time of the parameter value to the server device 6 via the access communication network 4 and the Internet 5 according to control by the communication control unit (ECU) 311. .

  The access communication network 4 is a communication network for accessing the Internet 5. For example, a wireless communication network according to a predetermined communication standard such as LTE (Long Term Evolution), or a wired line such as a digital subscriber line or an optical line It is a communication network. The Internet 5 is an example of a wide area network (WAN (Wide Area Network)).

  The server device 6 is a computer as an example of a battery deterioration monitoring device according to the embodiment. The server device 6 includes a communication interface 61, a storage unit 62, and a calculation unit 63. The communication interface 61 includes a transmission unit 611 and a reception unit 612.

  The communication interface 61 is a device for the server device 6 to transmit / receive various data to / from the charger 3 and the terminal device 7 via the Internet 5. For example, the receiving unit 612 receives various data transmitted from the charger 3. For example, the transmission unit 611 transmits various data calculated by the calculation unit 63 to the terminal device 7.

  The storage unit 62 is, for example, a main storage device such as a RAM (Random Access Memory), or an auxiliary storage device such as a magnetic disk, an optical disk, or a flash memory. For example, the storage unit 62 stores the ID of the battery 212, the parameter value, and the acquisition date and time of the parameter value received by the receiving unit 612 from the charger 3 in the management table.

  FIG. 2 is a diagram illustrating an example of a management table according to the embodiment. In the example illustrated in FIG. 2, the parameter value acquisition date and time, the ID of the battery 212, and the charge capacity and state flag as parameter values are stored in the management table. As shown in FIG. 2, the parameter value is stored in the storage unit 62 in association with the acquisition date and time of the parameter value.

  The storage unit 62 stores the acquisition date and time, the ID of the battery 212, and the parameter value in the management table every time the receiving unit 612 receives from the charger 3. In the example shown in FIG. 2, the history of charging from the acquisition date “2015.3.13 11:00” to the acquisition date “2015.3.13 12:00” and the next charge starting from the acquisition date “2015.3.14 13:30” The history for is recorded.

  The calculation unit 63 is, for example, a processor such as a CPU (Central Processing Unit). The calculation unit 63 calculates a deterioration prediction line of the battery 212 using the parameter value and the acquisition date / time stored in the storage unit 62. The deterioration prediction line is a line indicating prediction of the time transition of the battery deterioration degree. For example, the calculation unit 63 calculates a deterioration prediction line (regression line) using the least square method based on the parameter value and the acquisition date and time stored in the storage unit 62.

  Specifically, when the parameter value is a charge capacity or a charge amount (integrated current amount), the deterioration degree of the battery 212 is expressed using the total charge amount of the battery 212 as an evaluation criterion. The total amount of charge is a value obtained by integrating the amount of charge over time. The calculation unit 63 calculates a deterioration prediction line related to the total charge amount.

  In the example shown in FIG. 2, the charge capacity is stored as the parameter value. The calculation unit 63 calculates the charge amount (integrated current amount) by subtracting the remaining capacity at the start of charging from the charge capacity, and then calculates the total charge amount. In the example shown in FIG. 2, the remaining capacity at the acquisition date “2015.03.13 11:00” is 10 Ah. The charging amount (accumulated current amount) at the acquisition date “2015.03.13 11:02” is 1 Ah (11-10 Ah), and the total charging amount is 1 Ah. The charge amount (integrated current amount) at the acquisition date “2015.03.13 11:59” is 20 Ah (30-10 Ah), and the total charge amount is 20 Ah. Further, the remaining capacity at the acquisition date “2015.03.13 11:30” is 15 Ah, and the total charge at this point is 20 Ah. The charge amount (accumulated current amount) at the acquisition date “2015.03.14 13:32” is 1 Ah (16-15 Ah), and the total charge amount is 21 Ah (20 + 1 Ah). The calculation unit 63 calculates a deterioration prediction line based on the total charge amount for each acquisition date and time thus obtained.

  Further, when the parameter value is a state flag, the deterioration degree of the battery 212 is represented by the number of times of charging the battery 212 as an evaluation criterion. The number of times of charging is a value obtained by integrating the number of times of charging by the charger 3 over time. The calculation unit 63 calculates a deterioration prediction line related to the total number of times of charging.

  In the example shown in FIG. 2, a status flag is stored as a parameter value. The calculation unit 63 integrates the number of times the state flag has changed from standby (“0”) to charging (“1”). In the example shown in FIG. 2, the number of times of charging at the acquisition date “2015.03.13 11:01” is one, and the number of times of charging at the acquisition date “2015.03.14 13:31” is two (1 + 1 times). . The calculation unit 63 calculates a deterioration prediction line based on the number of times of charging for each acquisition date and time thus obtained.

  The calculation unit may calculate one prediction date and time by calculating one deterioration prediction line corresponding to one evaluation criterion such as the total charge amount or the number of times of charging. The calculation unit 63 may calculate a plurality of deterioration prediction lines corresponding to a plurality of evaluation criteria such as the total charge amount and the number of times of charge, and may calculate a plurality of prediction dates and times.

  For example, when the user repeatedly uses the battery 212 such that the battery 212 is charged up to the upper limit threshold of the charge capacity when the charge capacity reaches the lower limit threshold, the deterioration degree of the battery 212 is monitored only by the total charge amount. May be. In addition, when the user repeatedly uses the battery 212 such that the battery 212 is charged in a state where the charge capacity is not sufficiently reduced, the deterioration degree of the battery 212 is replaced with the total charge amount or instead of the total charge amount. It may be monitored by the number of times of charging. The calculation unit 63 may be configured to select an evaluation criterion for the degree of battery deterioration depending on how the battery 212 is used. According to such a configuration, the degree of battery deterioration can be accurately monitored according to how the battery 212 is used by the user.

  In addition, in business vehicles 2 such as forklifts, there are cases where specific dates and times such as weekends and holidays are not used for the vehicles 2. Therefore, for the battery 212 mounted on such a vehicle 2, the calculation unit 63 may calculate a deterioration prediction line after excluding a specific date and time when the vehicle 2 is not used. According to such a calculation method, the accuracy of the deterioration prediction line can be increased.

  The calculation unit 63 uses the calculated deterioration prediction line to calculate a prediction date and time when the battery deterioration degree reaches a preset value. The place value to be set is, for example, one or more of a value indicating low degree deterioration, a value indicating high degree deterioration, and a value indicating a collection target. The value indicating the low degree of deterioration is, for example, a value at which the full charge capacity of the battery 212 starts to decrease, and the value indicating the high degree of deterioration, for example, is desirably replaced with the battery 212 due to a decrease in the full charge capacity of the battery 212. Value. Further, the value indicating the collection target is, for example, a value at which the full charge capacity further decreases and the battery 212 is desirably collected.

  The calculation unit 63 may calculate the deterioration prediction line after converting the battery deterioration degree for each acquisition date and time into a percentage in which the place set as described above is set to 100%. According to such a configuration, the battery deterioration degree can be expressed in the same unit (%) that is easy to understand intuitively, regardless of which of the total charge amount and the number of times of charging is used as the evaluation criterion. In this configuration, the calculation unit 63 calculates the predicted date and time when the battery deterioration degree reaches 100%, using the calculated deterioration prediction line.

  Thus, according to the battery deterioration level monitoring apparatus according to the embodiment, it is possible to monitor the predicted date and time when the predetermined battery deterioration level is reached. In addition, according to the battery deterioration monitoring device according to the embodiment, since the accumulation and analysis of various data related to battery deterioration are performed by the battery deterioration monitoring device, the processing cost of a battery-side device such as a battery control unit (ECU) Can be reduced.

  The transmission unit 611 transmits the predicted date and time data calculated by the calculation unit 63 to the terminal device 7. The terminal device 7 is, for example, a personal computer having a communication function, a mobile phone called a smartphone, or a portable information terminal device called a tablet.

  For example, when the set place value is a value indicating a low degree of deterioration, the transmission unit 611 transmits the predicted date and time data to the terminal device 7 a used by the battery 212 or the dealer of the vehicle 2. For example, when the set place value is a value indicating altitude degradation or a value indicating a collection target, the transmission unit 611 transmits the predicted date and time data to the terminal device 7b used by the user of the vehicle 2 in addition to the terminal device 7a. Send. Regardless of the set value, the transmission unit 611 may transmit the predicted date / time data as described above to the battery device 212 or the terminal device 7c used by the manufacturer of the vehicle 2.

  The transmission of the predicted date / time data may be performed immediately after the predicted date / time is calculated. The transmission of the predicted date and time data may be performed when the terminal device 7 accesses a website managed by the server device 6. In the latter case, a predicted date and time is displayed on a predetermined page in a website managed by the server device 6 on a display device (not shown) provided in the terminal device 7 such as a liquid crystal display.

Thus, according to the battery deterioration level monitoring apparatus according to the embodiment, it is possible to notify a desired target person of the predicted date and time when the predetermined battery deterioration level is reached.
When the deterioration level of the battery 212 is already equal to or higher than the predetermined value at the current date and time (the latest acquisition date and time of the parameter value), the transmission unit 611 has already set the deterioration level of the battery 212 to the predetermined value instead of the predicted date and time data. Advice information indicating that it has been reached may be transmitted to the terminal device 7. In this case, the calculation unit 63 may not calculate the deterioration prediction line.

  The transmission unit 611 may transmit the degradation prediction line data to the terminal device 7 together with the prediction date / time data. The terminal device 7 displays the deterioration prediction line and the prediction date and time on a display device (not shown) based on each received data.

  Furthermore, the transmission unit 611 may transmit the degradation measurement line data to the terminal device 7 together with the prediction date and time and the degradation prediction line data. The deterioration actual measurement line is a line obtained by connecting the actual measurement values of the battery deterioration degree calculated from the parameter values stored in the storage unit 62 for each acquisition date and time. The deterioration measurement line is calculated by the calculation unit 63. The terminal device 7 displays a deterioration measurement line, a deterioration prediction line, and a prediction date and time on a display device (not shown) based on each received data.

  FIG. 3 is a diagram illustrating an example of a prediction display of the battery deterioration degree according to the embodiment. In the example illustrated in FIG. 3, the degree of deterioration of the battery 212 is represented by the total charge amount and the number of times of charge. The vertical axis represents the total amount of charge (%) and the number of times of charging (%), and the horizontal axis represents the date and time. The terminal device 7 displays a deterioration actual measurement line, a deterioration prediction line, a current date and time, a prediction date and time, and a battery deterioration degree 100% for each of the total charge amount and the number of times of charging. In FIG. 3, the deterioration actual measurement line is indicated by a solid line, and the deterioration prediction line is indicated by a one-dot chain line. The current date / time corresponds to the latest acquisition date / time stored in the storage unit 62.

  Next, the calculation unit 63 calculates the difference between the predicted date and time and the current date and time. When the calculated difference is equal to or less than the predetermined value, the transmission unit 611 transmits advice information regarding the use of the battery 212 to the terminal device 7.

  For example, when the set value is a value indicating low degree of deterioration, the transmission unit 611 gives advice information that prompts inspection of the battery 212, a plan for replacement time of the battery 212, or periodic inspection of the vehicle 2 to the terminal device 7a. Send to. For example, when the set place is a value indicating the high degree of deterioration, the transmission unit 611 transmits advice information for suggesting the replacement time of the battery 212 to the terminal device 7a, and the replacement time of the battery 212 is exchanged with the dealer. Advice information for prompting consultation is transmitted to the terminal device 7b. For example, when the set value is a value indicating a collection target, the transmission unit 611 transmits advice information that prompts immediate replacement of the battery 212 to the terminal devices 7a and 7b. Note that the transmission unit 611 may transmit the advice information as described above to the terminal device 7c, regardless of the set value as described above.

The terminal device 7 displays advice information on a display device (not shown). The advice information may be displayed on a pop-up of a display page as shown in FIG.
As described above, the server device 6 notifies the desired terminal device 7 of the advice information regarding the use of the battery when the time to reach the predetermined battery deterioration level is approaching. For this reason, according to the battery deterioration degree monitoring apparatus according to the embodiment, the battery user or the like can appropriately manage the battery according to the notified advice information.

  An example of the battery deterioration monitoring method according to the embodiment will be described with reference to FIG. FIG. 4 is a diagram illustrating an exemplary flow of the battery deterioration degree monitoring method according to the embodiment. The battery deterioration degree monitoring method according to the embodiment is executed by the server device 6 described above. As described above, the server device 6 is a computer as an example of the battery deterioration monitoring device according to the embodiment.

  When the server device 6 starts a series of battery deterioration level monitoring processing (step S1), the receiving unit 612 receives the ID of the battery 212, the parameter value, and the acquisition date and time of the parameter value from the charger 3 (step S2). As described above, the parameter value is, for example, one or more of a charge capacity, a charge amount, and a status flag. The storage unit 62 stores the received ID of the battery 212, the parameter value, and the acquisition date and time in the management table (step S3).

  The calculation unit 63 calculates a deterioration prediction line using the parameter value and the acquisition date / time stored in the storage unit 62 (step S4). As described above, the deterioration prediction line is calculated using, for example, the least square method. The calculation unit 63 calculates the predicted date and time when the degree of deterioration of the battery 212 reaches the desired value using the calculated deterioration prediction line (step S5). Further, the calculation unit 63 calculates the difference between the calculated predicted date and time and the current date and time (the latest acquisition date and time stored in the storage unit 62).

  When the calculated difference exceeds the value (“NO” in step S6), the transmission unit 611 transmits each data of the deterioration prediction line and the prediction date and time to the terminal device 7 (step S7). Note that the transmission unit 611 may transmit only the data of the predicted date and time to the terminal device 7.

  On the other hand, when the calculated difference is equal to or smaller than the predetermined value (“YES” in step S6), the transmission unit 611 transmits advice information to the terminal device 7 together with each data of the deterioration prediction and the prediction date and time (step S8). Note that the transmission unit 611 may transmit only the prediction date data and advice information to the terminal device 7. Moreover, the advice information transmitted may differ according to the place set with respect to the battery deterioration degree.

If the transmission process by the transmission part 611 is made, the server apparatus 6 will complete | finish a series of battery deterioration monitoring processes (step S9).
Thus, according to the battery deterioration level monitoring method according to the embodiment, it is possible to monitor the predicted date and time when a predetermined battery deterioration level is reached. In addition, according to the battery deterioration monitoring method according to the embodiment, since the storage and analysis of data relating to battery deterioration is performed by the server device, the processing cost of a battery-side device such as a battery control unit (ECU) can be reduced.

  The present invention is not limited to the above embodiments, and various improvements and modifications can be made without departing from the scope of the present invention.

1 Battery Deterioration Monitoring System 2 Vehicle 21 Battery Pack 211 Battery Control Unit (ECU)
212 battery 3 charger 31 communication unit 311 communication control unit (ECU)
312 Communication module 32 Charging control unit (ECU)
33 charging circuit 4 access communication network 5 internet 6 server device 61 communication interface 611 transmission unit 612 reception unit 62 storage unit 63 calculation units 7, 7a, 7b, 7c terminal device

Claims (6)

A parameter value acquired based on a current value supplied to the battery from the charger, and a reception unit that receives the acquisition date and time of the parameter value from the charger;
A storage unit for storing the parameter value and the acquisition date and time;
A calculation unit that calculates a deterioration prediction line of the battery using the parameter value and the acquisition date and time, and calculates a prediction date and time when the degree of deterioration of the battery reaches a predetermined value using the deterioration prediction line;
A battery deterioration degree monitoring apparatus comprising: a transmission unit that transmits data of the predicted date and time. The battery deterioration monitoring device according to claim 1,
The transmitter is a battery deterioration monitoring device that further transmits advice information regarding the use of the battery when a difference between the predicted date and time and a current date and time is equal to or less than a predetermined value. The battery deterioration monitoring device according to claim 1 or 2,
The parameter value is a charge capacity of the battery,
The said calculation part is a battery deterioration degree monitoring apparatus which calculates the said deterioration prediction line regarding the total charge amount of the said battery using the said charge capacity. The battery deterioration monitoring device according to any one of claims 1 to 3,
The parameter value is a status flag of the charger,
The said calculation part is a battery deterioration degree monitoring apparatus which calculates the said deterioration prediction line regarding the frequency | count of charge of the said battery using the said state flag. The battery deterioration monitoring device according to any one of claims 1 to 4,
The transmission unit is a battery deterioration monitoring apparatus that further transmits data of the deterioration prediction line. A battery deterioration monitoring method executed by a computer,
The parameter value acquired based on the current value supplied to the battery from the charger, and the acquisition date and time of the parameter value are received from the charger,
Storing the parameter value and the acquisition date and time;
Calculate the battery deterioration prediction line using the parameter value and the acquisition date and time,
Using the deterioration prediction line, calculate the predicted date and time when the degree of deterioration of the battery reaches a value,
A battery deterioration monitoring method for transmitting data of the predicted date and time.

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