CN116964825A - Battery control system and battery control method - Google Patents

Battery control system and battery control method Download PDF

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Publication number
CN116964825A
CN116964825A CN202280019169.4A CN202280019169A CN116964825A CN 116964825 A CN116964825 A CN 116964825A CN 202280019169 A CN202280019169 A CN 202280019169A CN 116964825 A CN116964825 A CN 116964825A
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CN
China
Prior art keywords
battery pack
user
abnormality
control system
battery
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202280019169.4A
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Chinese (zh)
Inventor
远矢正一
安藤圣师
吉松昂洋
阿部孝义
丰永智彦
児岛慎二
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Panasonic Intellectual Property Management Co Ltd
Original Assignee
Panasonic Intellectual Property Management Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Panasonic Intellectual Property Management Co Ltd filed Critical Panasonic Intellectual Property Management Co Ltd
Publication of CN116964825A publication Critical patent/CN116964825A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Abstract

A battery control system (100) is provided with: a battery pack (110) including a battery (111) and one or more sensors (113) for detecting abnormalities; and an information processor (120) which, when an abnormality is detected by one or more sensors (113), notifies a user of the battery pack (110) of a confirmation request concerning the abnormality, acquires a confirmation result for the confirmation request from the user, and notifies the user of an action recommended to the user based on the confirmation result.

Description

Battery control system and battery control method
Technical Field
The present disclosure relates to a battery control system and the like that performs abnormality-related control of a battery pack.
Background
Patent document 1 proposes a battery pack having a protection function for stopping a charge/discharge function of the battery pack so that the battery pack cannot be used when an excessive external impact such as a drop is applied to the battery pack. In addition, the battery pack is also called a battery pack.
Prior art literature
Patent literature
Patent document 1: japanese patent laid-open No. 2009-117163
Disclosure of Invention
Problems to be solved by the invention
However, even if an impact is applied to the battery pack, an abnormality that causes a failure does not actually occur in the battery pack, and the battery pack can be continuously used in some cases. In such a case, the use of the battery pack is stopped, which may prevent the effective use of the battery pack.
Accordingly, the present disclosure provides a battery control system and the like capable of suppressing unnecessary stop of use of a battery pack.
Solution for solving the problem
A battery control system according to an embodiment of the present disclosure includes: a battery pack including a battery and one or more sensors for detecting abnormality; and an information processor that, when the abnormality is detected by the one or more sensors, notifies a user of the battery pack of a confirmation request concerning the abnormality, acquires a confirmation result for the confirmation request from the user, and notifies the user of an action recommended to the user based on the confirmation result.
Further, a battery control method according to an aspect of the present disclosure is a battery control method performed by a battery control system, in which, when an abnormality is detected by one or more sensors of a battery pack including a battery and one or more sensors for detecting the abnormality, a confirmation request concerning the abnormality is notified to a user of the battery pack, a confirmation result for the confirmation request is acquired from the user, and an action recommended to the user is notified to the user based on the confirmation result.
ADVANTAGEOUS EFFECTS OF INVENTION
The battery control system and the like according to one embodiment of the present disclosure can suppress unnecessary stop of use of the battery pack.
Drawings
Fig. 1 is a block diagram showing the structure of a battery control system in the embodiment.
Fig. 2 is a conceptual diagram showing an external appearance of the battery control system in the embodiment.
Fig. 3 is a block diagram showing a specific configuration example of the battery control system in the embodiment.
Fig. 4 is a flowchart showing an example of the operation of the battery control system according to the embodiment.
Fig. 5 is a conceptual diagram showing an example of information notified by the battery control system in the embodiment.
Fig. 6 is a data diagram showing a confirmation item or the like in the case where an impact is detected by the battery control system in the embodiment.
Fig. 7 is a data diagram showing a confirmation item or the like in the case where a temperature abnormality is detected by the battery control system in the embodiment.
Fig. 8 is a data diagram showing a confirmation item or the like in the case where an electrical abnormality is detected by the battery control system in the embodiment.
Fig. 9 is a conceptual diagram showing an example of information notified when the number of times of detection of an abnormality is equal to or greater than a threshold value by the battery control system according to the embodiment.
Fig. 10 is a conceptual diagram showing an example of information notified by the battery control system in the embodiment when the use of the battery pack is forcibly stopped.
Fig. 11 is a conceptual diagram showing an example of information notified by the battery control system in the embodiment when the usage capacity of the battery pack decreases.
Detailed Description
For example, if an abnormality is detected in a battery pack mounted with a lithium ion battery or the like, immediately stopping the use of the battery pack may prevent effective use of the battery pack. Therefore, when an abnormality of the battery pack is detected, the battery control system in the present embodiment notifies the user of the battery pack of a confirmation request, and notifies the user of an action recommended to the user based on the confirmation result. Thereby, the battery control system can suppress unnecessary stop of the use of the battery pack.
The embodiments are described in detail below with reference to the drawings. Further, the embodiments described below each show a general or specific example. The numerical values, shapes, materials, components, arrangement positions and connection modes of the components, order of operations, and the like shown in the following embodiments are examples, and are not intended to limit the scope of the present disclosure. Among the constituent elements in the following embodiments, constituent elements not described in the independent claims will be described as arbitrary constituent elements.
In the following description, charge and discharge may be referred to as at least one of charge and discharge.
Fig. 1 is a block diagram showing the structure of a battery control system in the present embodiment. As shown in fig. 1, the battery control system 100 includes a battery pack 110 and an information processor 120. In addition, the battery pack 110 includes a battery 111 and one or more sensors 113. The battery pack 110 may be rented to the user or sold to the user.
The storage battery 111 is a battery that can be charged and discharged, and is also called a secondary battery. The battery 111 may be an aggregate of a plurality of unit cells.
The one or more sensors 113 are sensors that detect the state of the battery pack 110, respectively. The one or more sensors 113 may be sensors for detecting abnormality of the battery pack 110, respectively.
For example, the one or more sensors 113 may include an acceleration sensor for detecting an impact on the battery pack 110. In addition, the one or more sensors 113 may include a temperature sensor for detecting temperature abnormality in the battery pack 110. The one or more sensors 113 may include at least one of a current sensor and a voltage sensor for detecting an electrical abnormality in the battery pack 110.
The information processor 120 is a processing circuit that performs information processing. The information processor 120 may be included in the battery pack 110 or may be included in a device different from the battery pack 110. In the case where the information processor 120 is a device different from the battery pack 110, the information processor 120 and the battery pack 110 may be capable of communicating with each other.
In addition, the information processor 120 may be constituted by a plurality of processing circuits. Further, a part of the plurality of processing circuits may be included in the battery pack 110, and the other part of the plurality of processing circuits may be included in a device different from the battery pack 110.
Specifically, when an abnormality is detected by one or more sensors 113, the information processor 120 notifies the user of the battery pack 110 of a confirmation request concerning the abnormality. Also, the information processor 120 acquires a confirmation result for the confirmation request from the user. Further, the information processor 120 notifies the user of the action recommended to the user according to the confirmation result. The information processor 120 may be provided with an input/output interface for notifying the user of information and acquiring information from the user.
The recommended action to the user may be a stop of the use of the battery pack 110 or a continuous use of the battery pack 110. In addition, the information processor 120 may inform the user of the usage method of the battery pack 110 as an action recommended to the user. Here, notifying the usage method as the action recommended to the user may be notifying an action corresponding to the usage method as the action recommended to the user.
Fig. 2 is a conceptual diagram showing an external appearance of the battery control system 100 shown in fig. 1. In fig. 2, battery pack 110, charge/discharge device 130, and information terminal 140 are shown as a plurality of components included in battery control system 100.
The charge/discharge device 130 is a device for charging and discharging the battery pack 110. For example, the charge/discharge device 130 charges the battery pack 110 with electric power supplied from the electric power system. The charge/discharge device 130 supplies electric power obtained by discharging the battery pack 110 to other devices such as household electrical appliances. The charge/discharge device 130 may be provided with an output terminal such as an AC outlet or a USB terminal to supply electric power to other devices such as home appliances.
The information terminal 140 is a terminal device that performs information processing. The information terminal 140 may be a computer having a memory, a processor, and an input/output interface.
Further, the battery pack 110 and the information terminal 140 may communicate with each other by wireless or the like. In addition, the information terminal 140 may include the information processor 120, and may function as the information processor 120. In fig. 2, the smart phone is shown as the information terminal 140, but the information terminal 140 is not limited to the smart phone, and may be a personal computer or a tablet terminal. In addition, the information terminal 140 is used by a user of the battery pack 110.
For example, the information terminal 140 may be used to confirm the state of the battery pack 110. The State Of the battery pack 110 may include a State Of Charge (SOC) Of the battery pack 110. Also, the state of the battery pack 110 may include information about an abnormality of the battery pack 110. The specific manner of abnormality is described later.
In fig. 2, battery pack 110, charge/discharge device 130, and information terminal 140 are shown as a plurality of components included in battery control system 100. However, the charge/discharge device 130 and the information terminal 140 may not be included in the battery control system 100. For example, the charge and discharge device 130 may be included in a different charge and discharge system from the battery control system 100. In addition, in the case where the information processor 120 is included in the battery pack 110, the information terminal 140 may not be included in the battery control system 100.
Fig. 3 is a block diagram showing a specific configuration example of the battery control system 100 shown in fig. 2. In the configuration example of fig. 3, the battery pack 110 includes a battery 111, a communicator 112, one or more sensors 113, and a controller 114. The charge/discharge device 130 includes a discharge power supply circuit 131, a controller 132, and a charge power supply circuit 133.
The communicator 112 is a processing circuit for performing communication. For example, the communicator 112 communicates with the information terminal 140 by wireless. The communicator 112 may communicate with the server 150 via the information terminal 140, or may communicate with the server 150 without via the information terminal 140.
The controller 114 is a processing circuit that controls the operation of the battery pack 110. For example, the controller 114 may control input and output of information about the communicator 112, the sensor 113, and the like. In addition, the controller 114 of the battery pack 110 may communicate with the controller 132 of the charge-discharge device 130 by wired or wireless means. Also, the controller 114 of the battery pack 110 may control the charge and discharge of the battery 111 in cooperation with the controller 132 of the charge and discharge device 130, and the like.
In addition, the controller 114 may limit the use of the battery pack 110 by controlling the charge and discharge of the battery 111. The usage restriction of the battery pack 110 may include a stop of the use of the battery pack 110, or may include a decrease in the usable capacity of the battery pack 110.
The discharge power supply circuit 131 is a circuit for supplying electric power obtained by discharging the battery pack 110 to an external device. Specifically, the discharge power supply circuit 131 converts dc power obtained by discharging the battery pack 110 into ac power, and supplies the ac power to an external device.
The controller 132 is a processing circuit that controls the operation of the charge/discharge device 130. For example, the controller 132 controls the discharging operation of the discharging power supply circuit 131 and the charging operation of the charging power supply circuit 133. In addition, the controller 132 of the charge and discharge device 130 may control the charge and discharge of the battery pack 110. Specifically, the controller 132 of the charge-discharge device 130 may control the charge and discharge of the battery 111 in cooperation with the controller 114 or the like of the battery pack 110.
The charging power supply circuit 133 is a circuit for supplying electric power supplied from the electric power system to the battery pack 110 to charge the battery pack 110. Specifically, the charging power supply circuit 133 converts ac power supplied from the power system into dc power, and supplies the dc power to the battery pack 110.
The server 150 is a device that performs information processing, and can also be expressed as a server device. The server 150 may be a computer having a memory and a processor.
For example, the information terminal 140 and the server 150 may be capable of communicating with each other. The server 150 may communicate with the battery pack 110 via the information terminal 140, or may communicate with the battery pack 110 without via the information terminal 140. In addition, the server 150 may include the information processor 120, and may function as the information processor 120. In addition, the server 150 may include a portion of the information processor 120, and may function as a portion of the information processor 120.
In addition, for example, information of the battery pack 110 and information of the information terminal 140 may be managed in the server 150. Specifically, the information of the battery pack 110 may be held in the server 150 in association with the information of the information terminal 140. The information of the battery pack 110 may include identification information and communication address information of the battery pack 110. In addition, the information of the information terminal 140 may include identification information and communication address information of the information terminal 140.
In addition, for example, the server 150 may periodically acquire information indicating the state of the battery pack 110 via the information terminal 140. Specifically, the server 150 may periodically acquire the detection results of the one or more sensors 113 of the battery pack 110 via the information terminal 140.
Fig. 4 is a flowchart showing an example of the operation of the battery control system 100 shown in fig. 3. First, the use of the battery pack 110 is started by the user (S101). Then, for example, the detection result of one or more sensors 113 is transmitted to the server 150 via the communicator 112 or the like. Then, the server 150 determines whether or not an abnormality is detected by one or more sensors 113 (S102). If no abnormality is detected (no in S102), the user continues to use the battery pack 110 (S103).
When an abnormality is detected (yes in S102), the information terminal 140 notifies the user of an abnormality detection message and a confirmation request (S104). In this case, for example, the server 150 notifies the user of an abnormality detection message and a confirmation request via the information terminal 140.
Then, the state concerning the abnormality detected in the battery pack 110 is confirmed by the user who has accepted the notification of the confirmation request (S105). Then, the confirmation result is acquired in the information terminal 140 (S106). At this time, for example, the server 150 acquires the confirmation result via the information terminal 140.
The server 150 determines whether or not there is an abnormality that would cause a failure based on the result of the confirmation (S107). If it is determined that there is an abnormality that causes a failure (yes in S107), the information terminal 140 notifies the user of a stop request (S110). In this case, for example, the server 150 notifies the user of the stop-use request via the information terminal 140.
If it is determined that there is no abnormality that causes a failure (no in S107), server 150 counts up the number of times the abnormality is detected (S108). Then, the server 150 determines whether or not the number of detections is equal to or greater than a threshold value (S109). When it is determined that the number of times of detection is equal to or greater than the threshold value (yes in S109), the information terminal 140 notifies the user of a stop request (S110). In this case, for example, the server 150 notifies the user of the stop-use request via the information terminal 140.
When it is determined that the number of times of probing is not equal to or greater than the threshold value (no in S109), the information terminal 140 notifies the user of the use guidance (S111). In this case, for example, the server 150 notifies the user of the use guidance via the information terminal 140. The use guide may include a meaning that the battery pack 110 can be continuously used, or may include an appropriate use method of the battery pack 110. Thereafter, the battery pack 110 is continuously used (S103).
After the notification of the stop-use request, the server 150 determines whether the stop-use request is ignored (S112). For example, when the server 150 is notified of the stop use from the user via the information terminal 140 after the notification of the stop use request, it may be determined that the stop use request is not ignored. Further, when the server 150 detects that the battery pack 110 is being charged or discharged by one or more sensors 113 or the like after the notification of the stop request, it may be determined that the stop request is ignored.
When the use stop request is ignored (yes in S112), the use of the battery pack 110 is restricted (S113). Specifically, in this case, the server 150 controls the charge and discharge of the battery pack 110 via the information terminal 140 or the like, thereby restricting the use of the battery pack 110. That is, server 150 may forcibly stop the use of battery pack 110 or may reduce the usable capacity of battery pack 110.
For example, the controller 114 of the battery pack 110 obtains an instruction of the use restriction of the battery pack 110 from the server 150 via the communicator 112 and the information terminal 140 of the battery pack 110, and the like. Then, the controller 114 of the battery pack 110 controls the charge and discharge of the battery 111 according to the instruction of the use restriction. Thereby restricting the use of the battery pack 110.
In addition, in the case where the stop-use request is ignored, the server 150 may register the user in the blacklist and collect a fine to the user.
If the use stop request is not ignored (no in S112), the information terminal 140 notifies the thank you (S114). Specifically, in this case, the server 150 notifies the user of the thank you via the information terminal 140. Also in this case, the server 150 may guide the user to purchase a new battery pack 110. In addition, in this case, the server 150 registers the user in the partner list and provides rewards to the user.
In the above-described operation, the server 150 performs a determination process or the like. However, all or a part of the plurality of processes performed by the server 150 may be performed by the information terminal 140 instead of the server 150, or may be performed by the controller 114 or the like of the battery pack 110 instead of the server 150.
The processes shown in fig. 4 are divided into a first stage, a second stage, and a third stage. In the first stage, in the case of detecting an abnormality, a confirmation request of a state related to the abnormality is notified to the user. In the second stage, when it is determined that there is an abnormality that causes a failure based on the confirmation result, the user is notified of the stop-use request. In the third stage, in the case where the use of the battery pack 110 is continued after the use request is stopped, the use of the battery pack 110 is restricted.
In the second stage, if it is determined that there is no abnormality that would cause a failure based on the result of the confirmation, the operation is continued. However, when the same number of times equal to or greater than the abnormality threshold is repeatedly detected, the user is notified of the stop request. In the third stage, when the use is stopped according to the use stop request, cooperation is thanked, guidance for purchasing a new product is performed, and the like.
According to the above-described operation, unnecessary stop of use of the battery pack 110 can be suppressed.
In the above-described operation, when it is determined that there is no abnormality that causes a failure based on the result of the confirmation, the battery control system 100 counts up the number of times of detection. However, the battery control system 100 may count the number of probing times in an accumulated manner before the notification of the confirmation request and the acquisition of the confirmation result are made. Further, when the number of times of detection is equal to or greater than the threshold value, the battery control system 100 may notify the user of the stop-use request without notifying the confirmation request and acquiring the confirmation result.
The threshold value for the number of detections may be determined individually according to the type, level, and the like of the anomaly. For example, the larger the level of an abnormality is, the smaller the value may be applied to the threshold value of the number of detections detected for the abnormality.
In the above-described operation, battery control system 100 notifies the user of a confirmation request each time an abnormality is detected. However, in place of such processing, the battery control system 100 may notify the user of the confirmation request when the number of times the abnormality is detected is equal to or greater than the threshold value.
For example, the battery control system 100 may notify the user of the confirmation request in the case where the number of times of detection of the abnormality is detected is the first threshold or more. Further, the battery control system 100 may notify the user of the stop-use request when the number of times of detection of the abnormality is detected is equal to or greater than a second threshold value that is greater than the first threshold value.
In addition, the stop use request may be notified in the case where the confirmation request is ignored. Alternatively, the notification of the stop-use request may be omitted and the use of the battery pack 110 may be restricted in the case where the confirmation request is ignored.
Fig. 5 is a conceptual diagram showing an example of information notified by the battery control system 100 shown in fig. 3. First, when an abnormality is detected, the battery control system 100 notifies the user of information on the upper left of fig. 5. That is, in this case, battery control system 100 notifies the user of an abnormality detection message that an abnormality of battery pack 110 is detected. Next, the battery control system 100 notifies the user of a plurality of questions as shown in the upper right of fig. 5. That is, the battery control system 100 notifies the user of the confirmation request.
When the plurality of answers to the plurality of questions include a yes answer, battery control system 100 notifies the user of the stop request as shown in the lower left of fig. 5. On the other hand, when the answer "yes" is not included among the plurality of answers to the plurality of questions, battery control system 100 notifies the user that battery pack 110 can be used continuously as shown in the lower right of fig. 5. At this time, the battery control system 100 may notify the user of the proper usage method of the battery pack 110.
In addition, here, in the case where the answer of "yes" is included, the battery control system 100 notifies the user of the stop use request. However, depending on the content of the question, the battery control system 100 may notify the user of the stop use request in the case of a answer of no. In addition, the battery control system 100 may notify the user of a more detailed question according to the answer to the question. Also, the battery control system 100 may inform the user of a more detailed usage method.
For example, in the case where it is recognized that the battery pack 110 is used in a high-temperature environment from the answer of the question, the battery control system 100 may notify the user that the battery pack 110 is not used in the high-temperature environment as the use method. In the case where it is recognized by the answer of the question that the appropriate product is not used as the charge and discharge device 130, the battery control system 100 may notify the user of the use of the appropriate product as the charge and discharge device 130 as the use method.
Fig. 6 is a data diagram showing a confirmation item or the like in the case where an impact is detected by the battery control system 100 shown in fig. 3. For example, in the case where the impact is detected, the battery control system 100 notifies the user of "abnormal impact is detected in good month×day in the battery pack of product number ≡ζ". "this anomaly detection message". Further, the battery control system 100 notifies the user of a confirmation request including the confirmation item of fig. 6.
Specifically, the confirmation items include items for confirming abnormal appearance, abnormal temperature, off-flavor, abnormal noise, abnormal terminal portion, and the like with respect to the battery pack 110. The battery control system 100 notifies the user of the stop use request in the case where an affirmative answer is received with respect to any of these confirmation items, that is, in the case where an affirmative result is obtained with respect to the detected abnormality which is an abnormality that would cause a malfunction.
In addition, the threshold value of the detection number of times detected for a medium impact is 5, and the threshold value of the detection number of times detected for a large impact is 2. The threshold is a threshold used in the determination (S109) of whether or not the number of detections in fig. 4 is equal to or greater than the threshold. That is, in the case where an impact smaller than the reference is detected 5 times or more, the battery control system 100 notifies the user of the stop use request. In addition, when an impact greater than the reference is detected 2 times or more, the battery control system 100 notifies the user of a stop use request.
Fig. 7 is a data diagram showing a confirmation item or the like in the case where a temperature abnormality is detected by the battery control system 100 shown in fig. 3. When the temperature abnormality is detected, the battery control system 100 notifies the user that "the temperature abnormality is detected in the battery pack having the product number of ≡ζ ∈v. "this anomaly detection message". Further, the battery control system 100 notifies the user of a confirmation request including the confirmation item of fig. 7.
Specifically, the confirmation items include items for confirming abnormal appearance, abnormal temperature, off-flavor, abnormal noise, abnormal terminal portion, and the like with respect to the battery pack 110. When the temperature abnormality is detected, the confirmation items include items for confirming abnormality in the model, abnormality in the appearance, abnormality in the temperature, abnormal smell, abnormal sound, abnormality in the terminal portion, and the like of the charge/discharge device 130. In this case, the confirmation items include items for confirming abnormality of the use environment of the battery pack 110.
The battery control system 100 notifies the user of the stop use request in the case where an affirmative answer is received with respect to any of these confirmation items, that is, in the case where an affirmative result is obtained with respect to the detected abnormality which is an abnormality that would cause a malfunction.
In addition, the threshold value of the detection number of times for which the temperature abnormality is detected is 2. The threshold is a threshold used in the determination (S109) of whether or not the number of detections in fig. 4 is equal to or greater than the threshold. That is, in the case where the temperature abnormality is detected 2 times or more, the battery control system 100 notifies the user of the stop use request.
Fig. 8 is a data diagram showing a confirmation item or the like in the case where an electrical abnormality is detected by the battery control system 100 shown in fig. 3. In the case where the electric abnormality is detected, the battery control system 100 notifies the user of "electric abnormality is detected in the battery pack having the product number of ∈ζ in case of good month x day. "this anomaly detection message". Further, the battery control system 100 notifies the user of a confirmation request including the confirmation item of fig. 8.
Specifically, the confirmation items include items for confirming abnormal appearance, abnormal temperature, off-flavor, abnormal noise, abnormal terminal portion, and the like with respect to the battery pack 110. When an electrical abnormality is detected, the confirmation items include items for confirming abnormality in the model, abnormality in the appearance, abnormality in the temperature, abnormal smell, abnormal sound, abnormality in the terminal portion, and the like of the charge and discharge device 130. In this case, the confirmation items include items for confirming abnormality of the use environment of the battery pack 110.
The battery control system 100 notifies the user of the stop use request in the case where an affirmative answer is received with respect to any of these confirmation items, that is, in the case where an affirmative result is obtained with respect to the detected abnormality which is an abnormality that would cause a malfunction.
In addition, the threshold value for the number of detection times that the electrical abnormality is detected is 2. The threshold is a threshold used in the determination (S109) of whether or not the number of detections in fig. 4 is equal to or greater than the threshold. That is, in the case where the electrical abnormality is detected 2 times or more, the battery control system 100 notifies the user of the stop use request.
In fig. 6 to 8, values shown as thresholds for the number of detections are examples. The threshold for the number of detections is not limited to these examples. For example, the threshold value for the number of times of detection may be determined according to the type, grade, or the like of the abnormality, or may not be determined according to the type, grade, or the like of the abnormality.
Fig. 9 is a conceptual diagram showing an example of information notified by the battery control system 100 shown in fig. 3 when the number of times of detection of an abnormality is equal to or greater than a threshold value. When the number of times of detection of the abnormality is equal to or greater than the threshold value, the battery control system 100 notifies the user of a stop request as shown in fig. 9.
For example, the use stop request shown in the lower left of fig. 5 is a use stop request notified when it is determined that there is an abnormality that causes a failure based on the result of the confirmation (yes in S107 of fig. 4). On the other hand, the use stop request shown in fig. 9 is a use stop request notified when the number of times of detection of an abnormality is equal to or greater than the threshold value (yes in S109 of fig. 4).
The message of the stop request to be notified when the number of times of detection that the abnormality is detected is equal to or greater than the threshold value is different from the message of the stop request to be notified when it is determined that there is an abnormality that causes a failure based on the confirmation result. In this way, the battery control system 100 can notify the user of appropriate information, and can prompt the user to perform appropriate actions.
Fig. 10 is a conceptual diagram showing an example of information notified by the battery control system 100 shown in fig. 3 when the use of the battery pack 110 is forcibly stopped. In the case where the request for stopping the use is ignored, the battery control system 100 may forcibly stop the use of the battery pack 110. In this case, the battery control system 100 may notify information as shown in fig. 10.
For example, battery control system 100 can prompt the user to purchase and replace battery pack 110 by forcibly stopping the use of battery pack 110.
Fig. 11 is a conceptual diagram showing an example of information notified by the battery control system 100 shown in fig. 3 when the usage capacity of the battery pack 110 decreases. In the case where the request for stopping use is ignored, the battery control system 100 may reduce the usable capacity of the battery pack 110. In this case, the battery control system 100 may notify information as shown in fig. 11.
For example, the battery control system 100 can reduce the risk of failure by reducing the usable capacity. Further, the battery control system 100 can promote the user to perform an appropriate operation such as purchasing and replacing the battery pack 110 by reducing the usable capacity.
The battery control system 100 can perform a process of reducing the usable capacity of the battery pack 110 and a process of forcibly stopping the use of the battery pack 110, with switching depending on the number of times, the type, the level, and the like of detection of the abnormality. Further, for example, when the first use stop request associated with the abnormality detection is ignored, the battery control system 100 may reduce the usable capacity of the battery pack 110. Further, in the case where the second request for stopping the use of the battery pack 110 accompanied by the newly detected abnormality is ignored, the battery control system 100 may forcibly stop the use of the battery pack 110.
As described above, the battery control system 100 according to one embodiment of the present disclosure is described in terms of the embodiment and the like, but the embodiment of the battery control system 100 is not limited to the embodiment and the like. The embodiment and the like may be modified as will occur to those skilled in the art, and a plurality of components in the embodiment and the like may be arbitrarily combined. For example, the processing performed by a specific component in the embodiment and the like may be performed by other components instead of the specific component. The order of the plurality of processes may be changed, or the plurality of processes may be executed in parallel.
In the above description, the impact, the temperature abnormality, and the electrical abnormality are shown as examples of the abnormality in the battery pack 110. However, the abnormalities in the battery pack 110 are not limited to these abnormalities. The battery control system 100 can handle other abnormalities in the same manner.
In addition, for example, the information processor 120 may be the information terminal 140, or may be included in the battery pack 110. Alternatively, a plurality of processing circuits constituting the information processor 120 may be arranged in a plurality of devices.
The battery control method including the steps performed by the respective components of the battery control system 100 may be executed by any device or system. That is, the battery control method may be performed by the battery control system 100, or may be performed by other devices or systems.
For example, the above-described battery control method may be executed by a computer system including a processor, a memory, an input/output circuit, and the like. At this time, a program for causing a computer system to execute the battery control method may be executed by the computer system. Furthermore, computer systems can sometimes be represented as computers alone.
In addition, the above-described program may be recorded in a non-transitory computer-readable recording medium. The recording medium may be an optical disk such as a CD-ROM, a magnetic disk such as a hard disk drive, an optical magnetic disk (MO), a semiconductor memory such as a flash memory, or other non-transitory computer readable recording medium. The program may be recorded in advance in the recording medium, or may be supplied to the recording medium via a communication network and recorded in the recording medium.
For example, the above-described battery control method may be executed by executing a program using hardware resources such as a processor, a memory, and an input/output circuit of a computer system. That is, the processor may acquire and calculate data from a memory, an input/output circuit, or the like, and output the calculation result to the memory, the input/output circuit, or the like, thereby executing the above-described battery control method. As a processor for executing the program, any kind of processor can be utilized.
The plurality of components included in the battery control system 100 and the like may be realized as dedicated or general-purpose circuits, respectively. These components may be realized as one circuit or a plurality of circuits.
The plurality of components included in the battery control system 100 and the like may be realized as an LSI (Large Scale Integration: large scale integrated circuit) which is an integrated circuit (IC: integrated Circuit). These constituent elements may be individually or partially or entirely monolithic. These components may be provided on one or more chips of one device or may be provided on a plurality of chips of a plurality of devices.
Further, an LSI is sometimes called a system LSI, a super LSI, or an ultra LSI, depending on the degree of integration. In addition, the integrated circuit may be implemented by a dedicated circuit or a general-purpose processor. A programmable FPGA (Field Programmable Gate Array: field programmable gate array) or a reconfigurable processor capable of reconfiguring the connection and setting of the internal circuit units may be used.
Further, if a technique of integrating circuits instead of LSI is developed by progress of semiconductor technology or other derived technology, it is needless to say that the integration of a plurality of components included in the battery control system 100 or the like may be performed by using the technique.
Finally, various modes of the battery control system 100 and the like are shown as examples. These modes can be appropriately combined. Any of the structures described in the above embodiments and the like may be added.
(first mode)
The battery control system 100 according to one embodiment of the present disclosure includes a battery pack 110 and an information processor 120. The battery pack 110 includes a battery 111 and one or more sensors 113 for detecting abnormalities. When an abnormality is detected by one or more sensors 113, the information processor 120 notifies the user of the battery pack 110 of a confirmation request concerning the abnormality. Also, the information processor 120 acquires a confirmation result for the confirmation request from the user. Further, the information processor 120 notifies the user of the action recommended to the user according to the confirmation result.
In this way, the battery control system 100 can prompt the user to confirm if an abnormality is detected. The battery control system 100 can prompt the user to perform an appropriate operation based on the confirmation result. Thus, the battery control system 100 can suppress unnecessary stop of the use of the battery pack 110.
(second mode)
For example, the one or more sensors 113 may include an acceleration sensor for detecting an impact on the battery pack 110 as an abnormality. Thereby, the battery control system 100 can detect an impact on the battery pack 110 as an abnormality. Further, the battery control system 100 can prompt the user to confirm when an impact is detected as an abnormality. Further, the battery control system 100 can prompt the user to perform an appropriate action based on the confirmation result concerning the impact.
(third mode)
For example, the one or more sensors 113 may include a temperature sensor for detecting a temperature anomaly in the battery pack 110. Thereby, the battery control system 100 can detect a temperature abnormality in the battery pack 110. Further, the battery control system 100 can prompt the user to confirm if the temperature abnormality is detected. Further, the battery control system 100 can prompt the user to perform an appropriate operation based on the result of the confirmation concerning the temperature abnormality.
(fourth mode)
For example, the one or more sensors 113 may include at least one of a current sensor and a voltage sensor for detecting an electrical abnormality in the battery pack 110. Thereby, the battery control system 100 can detect an electrical abnormality in the battery pack 110. Further, the battery control system 100 can prompt the user to confirm if an electrical abnormality is detected. Further, the battery control system 100 can prompt the user to perform an appropriate operation based on the result of the confirmation concerning the electrical abnormality.
(fifth mode)
For example, the information processor 120 may notify the user of the stop of the use of the battery pack 110 as the action recommended to the user in the case where the confirmation result indicates that the abnormality may cause a malfunction. In this way, the battery control system 100 can prompt the user to stop using the battery pack 110 when it is recognized from the confirmation result that the detected abnormality is an abnormality that may cause a malfunction. That is, the battery control system 100 can appropriately cause the battery pack 110 to stop being used.
(sixth mode)
For example, the information processor 120 may notify the user of continued use of the battery pack 110 as an action recommended to the user in the case where the confirmation result does not indicate that the abnormality may cause a malfunction. Thus, the battery control system 100 can prompt the user to continue using the battery pack 110 in the case where it is recognized from the confirmation result that the detected abnormality is not an abnormality that would cause a malfunction. That is, the battery control system 100 can appropriately promote continued use of the battery pack 110.
(seventh mode)
For example, when the number of times of detection that the abnormality is detected is equal to or greater than a threshold value, the information processor 120 may notify the user of the stop of the use of the battery pack 110 as the recommended action to the user.
Thus, the battery control system 100 can prompt the user to stop using the battery pack 110 regardless of the confirmation result when the number of times the abnormality is detected is large. In the case where the number of detection times at which the abnormality is detected is large, it is assumed that the battery pack 110 is used in a situation where a failure is likely to occur. The battery control system 100 can appropriately cause the stop of the use of the battery pack 110 in such a use condition.
(eighth mode)
For example, the threshold value for the number of times of detection of the abnormality may be determined according to at least one of the kind and the level of the abnormality. Thus, the battery control system 100 can appropriately promote the stop of the use of the battery pack 110 according to the number of times the abnormality is detected, the type and level of the abnormality, and the like, regardless of the result of the confirmation.
(ninth mode)
For example, the one or more sensors 113 may include an acceleration sensor for detecting an impact on the battery pack 110 as an abnormality. In addition, the information processor 120 may apply a first value to the threshold value in the case where the impact is of a first level. Also, the information processor 120 may apply a second value smaller than the first value to the threshold value in the case where the impact is of a second level larger than the first level.
As a result, battery control system 100 can promote the stop of battery pack 110 regardless of the result of confirmation even if the number of times a relatively large impact is detected is small.
(tenth mode)
For example, the information processor 120 may limit the use of the battery pack 110 in a case where the battery pack 110 is continuously used after notifying the user of the stop use of the battery pack 110 as the recommended action to the user. Specifically, in this case, the information processor 120 may limit the use of the battery pack 110 by controlling at least one of the charge and discharge of the battery pack 110.
Thus, the battery control system 100 can restrict the use of the battery pack 110 in the case where the use is continued after the stop of the use is recommended. Thus, the battery control system 100 can suppress damage due to failure of the battery pack 110.
(eleventh mode)
For example, the information processor 120 may inform the user of the usage method of the battery pack 110 as an action recommended to the user according to the confirmation result. Thereby, the battery control system 100 can prompt the user to make proper use of the battery pack 110.
(twelfth mode)
The battery control method according to one embodiment of the present disclosure is a battery control method performed by the battery control system 100. In the battery control method, when an abnormality is detected by one or more sensors 113 of the battery pack 110 including the battery 111 and one or more sensors 113 for detecting an abnormality, the following process is performed.
First, a confirmation request regarding abnormality is notified to the user of the battery pack 110 (S104). After that, a confirmation result for the confirmation request is acquired from the user (S106). Then, the action recommended to the user is notified to the user based on the confirmation result (S110, S111).
In this way, the user can be prompted to confirm when an abnormality is detected. Further, the user can be prompted to perform an appropriate action based on the confirmation result. Thus, unnecessary stop of use of the battery pack 110 can be suppressed.
Description of the reference numerals
100: a battery control system; 110: a battery pack; 111: a storage battery; 112: a communicator; 113: a sensor; 114. 132: a controller; 120: an information processor; 130: a charge-discharge device; 131: a discharge power supply circuit; 133: a charging power supply circuit; 140: an information terminal; 150: and a server.

Claims (12)

1. A battery control system is provided with:
a battery pack including a battery and one or more sensors for detecting abnormality; and
and an information processor that, when the abnormality is detected by the one or more sensors, notifies a user of the battery pack of a confirmation request concerning the abnormality, acquires a confirmation result for the confirmation request from the user, and notifies the user of an action recommended to the user based on the confirmation result.
2. The battery control system of claim 1, wherein,
The one or more sensors include an acceleration sensor for detecting an impact on the battery pack as the abnormality.
3. The battery control system according to claim 1 or 2, wherein,
the one or more sensors include a temperature sensor for detecting a temperature abnormality in the battery pack as the abnormality.
4. The battery control system according to any one of claims 1 to 3, wherein,
the one or more sensors include at least one of a current sensor and a voltage sensor for detecting an electrical abnormality in the battery pack as the abnormality.
5. The battery control system according to any one of claims 1 to 4, wherein,
the information processor notifies the user of the stop of the use of the battery pack as the action recommended to the user, in the case where the confirmation result indicates that the abnormality may cause a malfunction.
6. The battery control system according to any one of claims 1 to 5, wherein,
the information processor notifies the user of continued use of the battery pack as the action recommended to the user, in a case where the confirmation result does not indicate that the abnormality may cause a malfunction.
7. The battery control system according to any one of claims 1 to 6, wherein,
the information processor notifies the user of the stop of the use of the battery pack as the action recommended to the user when the number of times the abnormality is detected is equal to or greater than a threshold value.
8. The battery control system of claim 7, wherein the battery control system comprises a battery control system,
the threshold value is determined according to at least one of the type and the level of the abnormality.
9. The battery control system according to claim 7 or 8, wherein,
the one or more sensors include an acceleration sensor for detecting an impact on the battery pack as the abnormality,
the information processor applies a first value to the threshold value in the case where the impact is of a first level, and applies a second value smaller than the first value to the threshold value in the case where the impact is of a second level greater than the first level.
10. The battery control system according to any one of claims 1 to 9, wherein,
the information processor restricts use of the battery pack by controlling at least one of charge and discharge of the battery pack in a case where the use of the battery pack is continued after the stop of the use of the battery pack is notified to the user as the action recommended to the user.
11. The battery control system according to any one of claims 1 to 10, wherein,
the information processor notifies the user of the method of use of the battery pack as the action recommended to the user according to the confirmation result.
12. A battery control method is performed by a battery control system, in which,
when the abnormality is detected by the one or more sensors of a battery pack including a battery and one or more sensors for detecting the abnormality, a confirmation request concerning the abnormality is notified to a user of the battery pack, a confirmation result for the confirmation request is acquired from the user, and an action recommended to the user is notified to the user according to the confirmation result.
CN202280019169.4A 2021-03-23 2022-03-14 Battery control system and battery control method Pending CN116964825A (en)

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