Battery monitoring program, recording medium, and battery monitoring system

Abstract

The battery monitoring program (P1) is a program for causing the processor (1) to implement a function of setting a usage condition (U) of the secondary battery (2) on the basis of a deterioration factor (F) of the secondary battery (2). A battery monitoring system (100) for monitoring a secondary battery (2) is provided with a use condition setting unit (104) for setting a use condition (U) of the secondary battery (2) on the basis of a deterioration factor (F) of the secondary battery (2).

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of Japanese application No. 2022-180268, filed on November 10, 2022, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present disclosure relates to techniques for monitoring batteries. Background Art

[0004] Patent document 1 below discloses a technology for utilizing an array of electric energy storage devices such as a battery pack (storage battery pack). In this technology, for example, battery packs are classified based on battery characteristics, and multiple battery packs having the same battery characteristics are used simultaneously at the destination of use. Battery characteristics include usage period, resistance, remaining capacity, estimated life, etc. According to this technology, by using multiple battery packs having the same battery characteristics simultaneously, it is possible to expect to maximize the battery performance of each battery pack.

[0005] Patent Document 1: Japanese Patent Application No. 2017-509867

[0006] The battery pack has a plurality of secondary batteries. The secondary batteries have degradation factors. Therefore, even if a plurality of secondary batteries having the same battery performance are used at the beginning, as in the technology described in Patent Document 1, if the degradation factors of the plurality of secondary batteries are different, the battery performance (lifespan) of the plurality of secondary batteries will also deviate due to continued use. Therefore, there is a problem that it is difficult to use the secondary batteries efficiently. Summary of the invention

[0007] The present disclosure provides a battery monitoring technology that is effective for efficiently using a secondary battery.

[0008] One aspect of the present disclosure is a battery monitoring program for causing a processor to implement a function of setting a usage condition of a secondary battery based on a deterioration factor of the secondary battery.

[0009] Another aspect of the present disclosure is a recording medium on which the battery monitoring program is recorded in a readable manner.

[0010] Another embodiment of the present disclosure is a battery monitoring system for monitoring a secondary battery, comprising:

[0011] The use condition setting unit sets a use condition of the secondary battery based on a deterioration factor of the secondary battery.

[0012] According to the above-mentioned aspects, the life of the secondary battery can be extended, the operation rate can be improved, and the secondary battery can be used efficiently.

[0013] In addition, the reference numerals in parentheses described in the claims indicate the corresponding relationship with specific elements described in the embodiments described later, and do not limit the technical scope of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above-mentioned object and other objects, features and advantages of the present disclosure will become more apparent through the following detailed description which will be described with reference to the accompanying drawings. The accompanying drawings are as follows:

[0015] Figure 1 This is a block diagram showing the configuration of the battery monitoring system according to the first embodiment.

[0016] Figure 2 This is a diagram showing a flowchart of the use condition setting control of the battery monitoring system according to the first embodiment.

[0017] Figure 3 This is a block diagram showing the configuration of a battery monitoring system according to the second embodiment.

[0018] Figure 4 This is a block diagram showing the configuration of a battery monitoring system according to a third embodiment.

[0019] Figure 5 This is a block diagram showing the configuration of a battery monitoring system according to a fourth embodiment.

[0020] Figure 6 This is a block diagram showing the configuration of a battery monitoring system according to a fifth embodiment.

[0021] Figure 7 This is a block diagram showing the configuration of a battery monitoring system according to a sixth embodiment.

[0022] Figure 8 This is a block diagram showing the configuration of a battery monitoring system according to a seventh embodiment.

[0023] Fig. 9 This is a block diagram showing the configuration of a battery monitoring system according to an eighth embodiment.

[0024] Fig.10 This is a block diagram showing the configuration of a battery monitoring system according to a ninth embodiment.

[0025] Fig.11 This is a block diagram showing the configuration of a battery monitoring system including a display program. DETAILED DESCRIPTION

[0026] Hereinafter, the battery monitoring technology according to the above-mentioned embodiment will be described in detail with reference to the drawings.

[0027] (Implementation Method 1)

[0028] like Figure 1As shown, the battery monitoring system 100 of the first embodiment is a system for monitoring the secondary battery 2 constituting the storage battery mounted on the vehicle 10 such as an electric vehicle and a hybrid vehicle. The secondary battery 2 is a battery pack formed by combining a plurality of battery cells. The secondary battery 2 forms a so-called "battery pack" together with the BMU (Battery Management Unit), and the BMU includes a monitoring data acquisition unit 101, a degradation degree inspection unit 102, a degradation factor determination unit 103, a use condition setting unit 104, and a battery control unit 105 to be described later. In addition, the secondary battery 2 (battery pack) can be a replaceable (cassette) battery that can be detachably mounted on the vehicle 10, or it can be a fixed battery that can be non-detachably mounted on the vehicle 10.

[0029] The battery monitoring system 100 includes a monitoring data acquisition unit 101, a degradation degree inspection unit 102, a degradation factor determination unit 103, a use condition setting unit 104, a battery control unit 105, and a use condition display unit 106 as its components. The functions of these components are executed by the processors 1 (processors 1A, 1B) provided in the battery pack on the vehicle 10 side and the charging station 20, respectively.

[0030] The charging station 20 is a device configured to be able to perform at least a charging operation of the secondary battery 2 mounted on the vehicle 10. In the charging station 20, the charging operation can be performed on the secondary battery 2 that is still mounted on the vehicle 10, or the charging operation can be performed on the secondary battery 2 that is removed from the vehicle 10. In addition, the charged secondary battery 2 can be used again in the vehicle 10, can be used in another vehicle, or can be reused in a secondary utilization destination different from the vehicle 10. In addition, a device that performs a replacement operation of the secondary battery 2 can be added to the charging station 20, or the charging station 20 can be replaced by a replacement station that can perform at least a replacement operation of the secondary battery 2.

[0031] The functions of each component of the battery monitoring system 100 are implemented by the battery monitoring program P1. The battery monitoring program P1 is a program for enabling the processor 1 to at least realize the functions of obtaining the monitoring data X of the secondary battery, checking the degree of degradation of the secondary battery 2 based on the monitoring data X, determining the degradation factor F of the secondary battery 2 based on the monitoring data X, setting the use condition U of the secondary battery 2 based on the inspection result R of the degree of degradation and the degradation factor, and displaying the use condition U. Preferably, the battery monitoring program P1 is recorded in a readable manner on the recording medium 40 as needed. The "recording" mentioned here can also be referred to as "storage". As the recording medium 40, various media such as memory type, disk type, and tape type can be used.

[0032] In addition, in the drawings related to the present embodiment, the recording medium 40 is recorded independently of the vehicle 10, the charging station 20, and the battery monitoring server 30 described later. However, the recording medium 40 is included in at least one of these components. In the drawings, the recording medium 40 is recorded independently of the above-mentioned components to avoid complicated recording or limited display of the recording location of the battery monitoring program.

[0033] The "processor 1" mentioned here broadly includes a processing device that is responsible for data calculation, conversion, program execution, control of other devices, etc. among the components of the computer. Typically, the processor 1 is composed of a CPU (Central Processing Unit) that controls the entire computer, or an MPU (Micro Processing Unit) that integrates some functions of the CPU.

[0034] In this embodiment, the functions of the monitoring data acquisition unit 101, the degradation degree inspection unit 102, the degradation factor determination unit 103, the use condition setting unit 104, and the battery control unit 105 are executed by the processor 1A mounted in the BMU in the battery pack. The function of the use condition display unit 106 is executed by the processor 1B mounted in the charging station 20.

[0035] In addition, how to distribute the multiple components (functional elements) of the battery monitoring system 100 to the vehicle 10 and the charging station 20 is not limited to Figure 1 It can be appropriately changed according to the situation.

[0036] The monitoring data acquisition unit 101 has a function of acquiring monitoring data X of the secondary battery 2. These data may be data directly sensed from the secondary battery 2, or data after the sensed data is converted into historical information by a control unit or the like. As monitoring data X, for example, time series data such as voltage, charge and discharge current, SOC (State Of Charge), battery temperature, ambient temperature around the battery, cumulative charging time, cumulative discharge time, cumulative current, AC impedance, etc. can be used. In addition, as monitoring data of the assembled battery, for example, time series data such as the total voltage of the assembled battery, the maximum and / or minimum voltage of the secondary battery in the assembled battery, battery temperature, SOC, etc. can be used. The "voltage" mentioned here includes open circuit voltage and closed circuit voltage. The monitoring data acquisition unit 101 can be a sensor that can detect the monitoring data X to be acquired, for example, a voltage sensor, a current sensor, a temperature sensor, etc., and calculates and acquires SOC based on these values.

[0037] The degradation degree inspection unit 102 has a function of inspecting the degradation degree of the secondary battery 2 based on the monitoring data X acquired by the monitoring data acquisition unit 101. According to the degradation degree inspection unit 102, when an evaluation parameter such as the capacity and internal resistance of the secondary battery 2 is selected from the monitoring data X, the degradation degree is calculated according to the value of the evaluation parameter. Then, an inspection result R indicating whether the degradation degree exceeds a preset threshold is derived. When the degradation degree exceeds the threshold, an inspection result R indicating that the secondary battery 2 has deteriorated to a predetermined level is obtained. In contrast, when the degradation degree is below the threshold, an inspection result R indicating that the degradation degree of the secondary battery 2 is low is obtained.

[0038] The degradation factor determination unit 103 has a function of determining the degradation factor F based on the monitoring data X. The degradation factor determination unit 103 includes a feature extraction unit 103a and an analysis unit 103b. The feature extraction unit 103a extracts the feature Y used in the analysis unit 103b from the monitoring data X. Preferably, the feature Y is at least one of the cumulative information of the parameter obtained as the monitoring data X, the change information of the parameter, and the concurrent frequency information of multiple parameters. As parameters, typically, voltage, SOC, temperature, current, etc. can be listed. The analysis unit 103b uses the feature Y extracted by the feature extraction unit 103a to perform analysis processing to derive the degradation factor F.

[0039] The use condition setting unit 104 has a function of setting the use condition U of the secondary battery 2 based on the inspection result R of the degradation degree inspection unit 102 and the degradation factor F derived by the analysis unit 103b. Examples of the use condition U of the secondary battery 2 include charging conditions, input / output conditions, SOC use conditions, temperature adjustment conditions, use application conditions, use area conditions, use order conditions, and battery combination conditions.

[0040] The battery control unit 105 has a function of controlling the secondary battery 2 based on the usage condition U set by the usage condition setting unit 104 .

[0041] The use condition display unit 106 has a function of displaying the use condition U set by the use condition setting unit 104. It is preferable that the use condition U is displayed on a screen of a desktop or notebook personal computer (PC), a tablet terminal, a mobile terminal, or the like.

[0042] In the present embodiment, the location where the use condition display unit 106 is provided is not limited to the charging station 20. The use condition display unit 106 may be provided in place of or in addition to the charging station 20, for example, at a secondary use destination of the secondary battery 2.

[0043] Next, refer to Figure 2 The use condition setting control of the battery monitoring system 100 is described below. Figure 2 Each step from step S1 to step S5 realizes the use condition setting control. In addition, one or more steps may be added to these steps as needed, or a plurality of steps may be appropriately merged.

[0044] like Figure 2 As shown, step S1 is performed by monitoring data acquisition unit 101 (refer to Figure 1 ) is a step of acquiring monitoring data X of the secondary battery 2. According to step S1, the monitoring data X of the secondary battery 2 is acquired. Step S2 is a step of obtaining the monitoring data X of the secondary battery 2 by the degradation degree inspection unit 102 (refer to Figure 1 ) A step of inspecting the degree of degradation of the secondary battery 2 based on the monitoring data X acquired in step S1. In step S2, an inspection result R of the degree of degradation of the secondary battery 2 is derived based on the detailed inspection as described above.

[0045] Step S3 is performed by the degradation factor determination unit 103 (refer to Figure 1 ) is performed to determine the degradation factor F of the secondary battery 2 by analytical processing. According to this step S3, the degradation factor F of the secondary battery 2 is determined. The "degradation factor F" mentioned here refers to the feature quantity Y that is a factor causing the degradation of the secondary battery 2 among the multiple feature quantities Y. In addition, the number of degradation factors F determined by the analytical processing is not particularly limited, and one or more degradation factors F can be determined. In the case of multiple degradation factors F, the main factor with the highest influence among these multiple degradation factors F can be used as the degradation factor F.

[0046] In step S3, first, the feature extraction unit 103a (see Figure 1 ) extracts feature quantity Y from monitoring data X. Then, the analysis unit 103b derives degradation factor F based on the extracted feature quantity Y. In addition, step S3 may be performed after step S2, before step S2, or simultaneously and in parallel with step S2.

[0047] As an example of the analysis method at this time, the damage amount is defined as the value obtained by multiplying the feature amount Y by the degree of influence of the feature amount Y on the degradation of the secondary battery 2. The damage amounts of a plurality of feature amounts Y are calculated and compared, and the feature amount Y with the largest damage amount can be identified as the degradation factor F.

[0048] In this analysis method, the influence of each feature quantity Y is pre-set according to the characteristics of the degraded battery. For example, the degradation degree of each of the multiple degraded batteries is set as the target variable and each feature quantity Y is set as the explanatory variable, and multivariate analysis is performed to perform modeling, and the contribution (importance) of the obtained feature quantity Y to the model is used as the influence of the feature quantity Y. In addition, it is preferred to set each feature quantity Y as a standardized explanatory variable so that the contribution (importance) of each feature quantity Y can be fairly compared.

[0049] Step S4 is a step of setting the use condition of the secondary battery 2 by the use condition setting unit 104. In step S4, the use condition U of the secondary battery 2 is set based on both the inspection result R derived in step S2 and the degradation factor F identified in step S3.

[0050] Here, the use condition U is exemplified. It is preferable to appropriately set the use condition U as follows in the case where the battery pack is fixed to the vehicle 10 (hereinafter referred to as "Case 1"), the case where an operation service using multiple vehicles 10 is adopted (hereinafter referred to as "Case 2"), the case where the battery pack is replaceable with respect to the vehicle 10 (hereinafter referred to as "Case 3"), and the case where the battery pack is reused at a secondary use destination different from the vehicle 10 (hereinafter referred to as "Case 4"), respectively.

[0051] <Case 1>

[0052] As the usage condition U in the case of Example 1, typically, charging conditions, input / output conditions, SOC usage conditions, and temperature control conditions can be set. In order to prevent the degradation of the determined degradation factor F from progressing, regarding the charging conditions, for example, a condition such as reducing the current value when charging the secondary battery 2 or increasing the upper limit voltage can be adopted. Regarding the input / output conditions, for example, a condition such as reducing the upper limit of the input / output of the secondary battery 2 can be adopted. Regarding the SOC usage conditions, for example, a condition such as reducing the SOC usage range of the secondary battery 2 can be adopted. Regarding the temperature control conditions, for example, a condition such as increasing the cooling capacity of the secondary battery 2 or increasing the heating capacity can be adopted. Since which usage condition to change is determined based on the degradation factor F, excessive restriction of battery performance can be avoided.

[0053] <Case 2>

[0054] As the use condition U in the case 2, typically, a use purpose condition, a use area condition, and a use order condition can be set. Regarding the use purpose condition, for example, a condition can be adopted in which each vehicle 10 equipped with the secondary battery 2 is allocated according to the use of the required driving distance, or according to the use of the input and output power required by the secondary battery 2, or according to the use of the operating time required by the secondary battery 2, so that the degradation factor F is balanced. Regarding the use area condition, for example, a condition can be adopted in which each vehicle 10 equipped with the secondary battery 2 is allocated according to the ambient temperature of the region, or according to the driving distance required in the use area, or according to the use of the input and output power required by the secondary battery 2 in the use area, or according to the operating time required by the secondary battery 2 in the use area, so that the degradation factor F is balanced. Regarding the use order condition, for example, a condition can be adopted in which the order of charging the secondary battery 2 or the order of use is determined in order to balance the degradation factor F.

[0055] <Case 3>

[0056] As the use condition U in the case 3, typically, a use purpose condition, a use area condition, a use order condition, and a battery combination condition can be set. Regarding the use purpose condition, for example, a condition can be adopted in which each vehicle 10 equipped with the secondary battery 2 is allocated according to the use of the required driving distance, or according to the use of the input and output power required by the secondary battery 2, or according to the use of the operation time required by the secondary battery 2 so that the degradation factor F is balanced. Regarding the use area condition, for example, a condition can be adopted in which each vehicle 10 equipped with the secondary battery 2 is allocated according to the ambient temperature of the region, or according to the driving distance required in the use area, or according to the use of the input and output power required by the secondary battery 2 in the use area, or according to the operation time required by the secondary battery 2 in the use area so that the degradation factor F is balanced. Regarding the use order condition, for example, a condition can be adopted in which the order of charging the secondary battery 2 or the order of use is determined so that the degradation factor F is balanced. Regarding the battery combination condition, a condition can be adopted in which, when a plurality of secondary batteries 2 are mounted on the vehicle 10, a plurality of secondary batteries 2 are combined so that, for example, the degradation factor F is consistent.

[0057] A specific example of the relationship between the degradation factor F and the use condition U in the above-mentioned cases 1 to 3 is described. For example, when high temperature or high SOC is the degradation factor F, the use condition U corresponding to the degradation factor F can be to place the secondary battery 2 in a normal temperature or low temperature area, or to improve the cooling performance of the secondary battery 2, or to reduce the SOC variation center. In addition, when low temperature or large current is the degradation factor F, the use condition U corresponding to the degradation factor F can be to place the secondary battery 2 in a normal temperature or high temperature area, or to improve the temperature rise performance of the secondary battery 2, or to limit the input performance at low temperature. In addition, when the degradation factor F is that the average SOC is high or the SOC variation width is large, the use condition U corresponding to the degradation factor F can be to place the secondary battery 2 in an area with less frequent use, or to use the secondary battery 2 only when the vehicle 10 travels a short distance, or to limit the SOC variation width. In addition, such a relationship between the degradation factor F and the use condition U is only an example relationship and is not limited to these relationships.

[0058] In addition, in the case of a replaceable secondary battery 2, a specific charging station 20 where the secondary battery 2 is to be arranged can be determined from a plurality of charging stations 20 based on the degradation factor F thereof. In this case, it is preferable to classify the plurality of charging stations 20 so that each charging station 20 becomes a destination for the arrangement of secondary batteries 2 having the same or the same type of degradation factor F. Thus, the charging station 20 as the destination for the arrangement of the secondary battery 2 can be determined in such a way that the degradation factor F is balanced. In addition, the classification of the plurality of charging stations 20 can be performed in advance or in real time based on the information of the plurality of secondary batteries 2.

[0059] <Case 4>

[0060] As the use condition U in the case 4, for example, the following conditions can be adopted: when the degradation factor F is balanced by placement use, the secondary battery 2 is allocated to reuse; in the case of reuse, the secondary battery 2 is allocated to balance the degradation factor F by considering the use purpose of reuse and the characteristics of the use area; in the case of modification, when the degradation factor F is balanced by changing the use purpose and the use area, the secondary battery 2 is allocated to modification. The use purpose change of modification considers from EV (electric vehicle) to HV (hybrid vehicle), or from long-distance use to short-distance use, etc.

[0061] Step S5 is performed by using the use condition display unit 106 (refer to Figure 1 ) is a step of displaying the usage condition U set in step S4. According to step S5, the usage condition U of the secondary battery 2 is displayed on the usage condition display unit 106. In this embodiment, since the usage condition display unit 106 is provided at the charging station 20, the usage condition U can be confirmed at the charging station 20.

[0062] According to the first embodiment, the following effects are achieved.

[0063] In the first embodiment, a process of setting the use condition U of the secondary battery 2 is performed based on at least the degradation factor F of the secondary battery 2. Therefore, it is possible to prevent the secondary battery 2 from rapidly deteriorating due to a specific degradation mechanism. As a result, the life of the secondary battery 2 can be extended, the operation rate can be improved, and the secondary battery 2 can be used efficiently.

[0064] In particular, in the first embodiment, the use condition U is set based on both the inspection result R of the degree of degradation and the degradation factor F. Therefore, compared with the case where the use condition U is set based only on the inspection result R of the degree of degradation, the following effects are achieved. That is, if the use condition U is set based only on the inspection result R of the degree of degradation, it is necessary to uniformly impose use restrictions on multiple parameters involved in the use of the secondary battery 2, but by adding the degradation factor F, the number of parameters subject to use restrictions can be reduced, and a more optimal use condition U for the secondary battery 2 can be proposed.

[0065] Hereinafter, other embodiments related to the above-mentioned Embodiment 1 will be described with reference to the drawings. In other embodiments, the same elements as those of the above-mentioned Embodiment 1 are denoted by the same reference numerals, and description of the same elements will be omitted.

[0066] (Implementation Method 2)

[0067] like Figure 3 As shown, the battery monitoring system 200 of the second embodiment is different from the battery monitoring system 100 of the first embodiment in that a degradation degree inspection unit 102, a degradation factor determination unit 103, and a use condition setting unit 104 are provided in a battery monitoring server 30 instead of a battery pack on the vehicle 10 side. The battery monitoring server 30 is a device for providing a monitoring service for the secondary battery 2. In addition, the battery monitoring server 30 may be provided in conjunction with the charging station 20 or may be provided at a location away from the charging station 20.

[0068] The functions of the components of the battery monitoring system 200 are implemented by the battery monitoring program P2. The battery monitoring program P2 is a program for causing the processors 1 (processors 1A, 1B, 1C) of the battery pack, the charging station 20, and the battery monitoring server 30 respectively provided on the vehicle 10 to implement the same functions as the battery monitoring program P1 of Embodiment 1. The battery monitoring program P2 is preferably recorded in a readable manner on the recording medium 40 as needed.

[0069] The other configuration and control are the same as those of the first embodiment.

[0070] According to the second embodiment, the functions of the degradation degree inspection unit 102 , the degradation factor identification unit 103 , and the use condition setting unit 104 are executed on the battery monitoring server 30 side, thereby reducing the processing load on the battery pack compared to the first embodiment.

[0071] Other than that, the same effects as those of the first embodiment are achieved.

[0072] (Implementation method 3)

[0073] like Figure 4 As shown in FIG. 1 , the battery monitoring system 300 of the embodiment is different from the battery monitoring system 200 of the second embodiment in that a monitoring data accumulation unit 101a is added to the battery pack on the vehicle 10 side, and a degradation degree inspection unit 102, a degradation factor determination unit 103, a use condition setting unit 104, and a use condition display unit 106 are provided at the charging station 20 instead of the battery monitoring server 30. The monitoring data accumulation unit 101a has a function of accumulating the monitoring data X acquired by the monitoring data acquisition unit 101 before outputting the monitoring data to the degradation degree inspection unit 102 and the degradation factor determination unit 103 of the charging station 20.

[0074] The functions of the components of the battery monitoring system 300 are implemented by the battery monitoring program P3. The battery monitoring program P3 is a program for causing the processor 1 (processor 1A, 1B) to implement the same functions as the battery monitoring program P2 of Embodiment 2. The battery monitoring program P3 is preferably recorded in a recording medium 40 in a readable manner as required.

[0075] The other configuration and control are the same as those in the second embodiment.

[0076] According to the third embodiment, the monitoring data X temporarily accumulated in the monitoring data storage unit 101a can be output to the charging station 20 side when the vehicle 10 or the battery pack arrives at the charging station 20. Alternatively, the monitoring data X temporarily accumulated in the monitoring data storage unit 101a can be always output to the charging station 20 side through the data transmission and reception function between the vehicle 10 side and the charging station 20 side. In addition, according to the third embodiment, the functions executed on the battery monitoring server 30 side in the case of the second embodiment can be concentrated on the charging station 20 side.

[0077] Other than that, the same effects as those of the second embodiment are achieved.

[0078] (Implementation 4)

[0079] like Figure 5As shown, the battery monitoring system 400 of the fourth embodiment is different from the battery monitoring system 200 of the second embodiment in that a degradation degree inspection unit 102 and a degradation factor identification unit 103 are provided in the battery pack on the vehicle 10 side instead of the battery monitoring server 30. The battery monitoring system 400 is suitable for use in the case of using an operation service for operating a plurality of vehicles 10.

[0080] The functions of the components of the battery monitoring system 400 are implemented by the battery monitoring program P4. The battery monitoring program P4 is a program for causing the processor 1 (processors 1A, 1B, 1C) to implement the same functions as the battery monitoring program P2 of Embodiment 2. The battery monitoring program P4 is preferably recorded in a recording medium 40 in a readable manner as required.

[0081] In this embodiment, the use condition display unit 106 is not limited to the charging station 20. Instead of or in addition to the charging station 20, the use condition display unit 106 may be provided at a secondary use destination of the secondary battery 2 or at a manager of an operation service that operates a plurality of vehicles 10.

[0082] The other configuration and control are the same as those in the second embodiment.

[0083] According to the fourth embodiment, among the functions executed on the battery monitoring server 30 side in the second embodiment, all functions other than the function of the use condition setting unit 104 can be integrated into the battery pack on the vehicle 10 side.

[0084] Other than that, the same effects as those of the second embodiment are achieved.

[0085] (Implementation method 5)

[0086] like Figure 6 As shown, the battery monitoring system 500 of the fifth embodiment is different from the battery monitoring system 400 of the fourth embodiment in that a degradation degree inspection unit 102 and a degradation factor identification unit 103 are provided in the battery monitoring server 30 instead of the battery pack on the vehicle 10 side. The battery monitoring system 500 is suitable for use in the case of using an operation service that operates a plurality of vehicles 10.

[0087] The functions of the components of the battery monitoring system 500 are implemented by the battery monitoring program P5. The battery monitoring program P5 is a program for causing the processor 1 (processors 1A, 1B, 1C) to implement the same functions as the battery monitoring program P4 of Embodiment 4. The battery monitoring program P5 is preferably recorded in a recording medium 40 in a readable manner as required.

[0088] The other configuration and control are the same as those of the fourth embodiment.

[0089] According to the fifth embodiment, among the functions performed by the battery pack on the vehicle 10 side in the fourth embodiment, all functions other than the function of the monitoring data acquisition unit 101 can be centralized on the battery monitoring server 30 side.

[0090] According to the fifth embodiment, the functions of the degradation degree inspection unit 102 , the degradation factor identification unit 103 , and the use condition setting unit 104 are executed on the battery monitoring server 30 side, thereby reducing the processing load on the battery pack compared to the fourth embodiment.

[0091] Other than that, the same effects as those of the fourth embodiment are achieved.

[0092] (Implementation 6)

[0093] like Figure 7 As shown, the battery monitoring system 600 of the sixth embodiment is different from the battery monitoring system 500 of the fifth embodiment in that a monitoring data accumulation unit 101a is added to the battery pack on the vehicle 10 side, and a degradation degree inspection unit 102 and a degradation factor determination unit 103 are provided at the charging station 20 instead of the battery monitoring server 30. The monitoring data accumulation unit 101a has a function of accumulating the monitoring data X acquired by the monitoring data acquisition unit 101 before outputting the monitoring data X to the degradation degree inspection unit 102 and the degradation factor determination unit 103 of the battery monitoring server 30. The battery monitoring system 600 is preferably used in the case of using an operation service that operates a plurality of vehicles 10 or in the case of using a replaceable battery.

[0094] The functions of the components of the battery monitoring system 600 are implemented by the battery monitoring program P6. The battery monitoring program P6 is a program for causing the processor 1 (processors 1A, 1B, 1C) to implement the same functions as the battery monitoring program P5 of Embodiment 5. The battery monitoring program P6 is preferably recorded in a recording medium 40 in a readable manner as required.

[0095] The other configuration and control are the same as those of the fifth embodiment.

[0096] According to the sixth embodiment, among the functions executed on the battery monitoring server 30 side in the fifth embodiment, all functions other than the function of the use condition setting unit 104 can be integrated on the charging station 20 side.

[0097] Other than that, the same effects as those of the fifth embodiment are achieved.

[0098] (Implementation 7)

[0099] like Figure 8As shown, the battery monitoring system 700 of embodiment 7 is different from the battery monitoring system 500 of embodiment 5 in that a usage condition setting unit 104 is provided in the battery usage condition management server 50 instead of the battery monitoring server 30, and further includes a vehicle operation management server 60 and an energy control server 70.

[0100] In the battery use condition management server 50, the use condition setting unit 104 has a function of judging the best battery use based on the state of the secondary battery 2 (deterioration degree inspection result R, degradation factor F) obtained from the battery monitoring server 30, the request from the vehicle operation request unit 107a described later, and the request from the EM request unit 108a described later. In addition, the use condition setting unit 104 has a function of outputting the judgment result of the best battery use to the use condition display unit 106, and returning the judgment result to the vehicle operation management server 60 and the energy control server 70. These functions of the use condition setting unit 104 are executed by the processor 1D mounted on the battery use condition management server 50.

[0101] The vehicle operation management server 60 is provided with a vehicle operation status acquisition unit 107, a vehicle operation request unit 107a, and a vehicle operation instruction unit 107b. The vehicle operation status acquisition unit 107 has a function of acquiring the actual vehicle operation status from a manager or a management system of the vehicle operation status (hereinafter referred to as the "vehicle operation management unit"). The vehicle operation request unit 107a has a function of deriving a method for efficiently using the vehicle based on the actual vehicle operation status acquired by the vehicle operation status acquisition unit 107, and outputting a battery use requirement L for the operation to the use condition setting unit 104 of the battery use condition management server 50. The vehicle operation instruction unit 107b has a function of instructing or proposing the vehicle operation based on the optimal battery use judgment result N output by the use condition setting unit 104 to the vehicle operation management unit. The functions of the vehicle operation status acquisition unit 107, the vehicle operation request unit 107a, and the vehicle operation instruction unit 107b are executed by the processor 1E mounted on the vehicle operation management server 60.

[0102] The energy management server 70 is provided with an EM status acquisition unit 108, an EM requirement unit 108a, and an EM instruction unit 108b. Here, the phrase "energy management" is also conveniently referred to as "EM". The EM status acquisition unit 108 has a function of acquiring the actual energy management status from a manager or management system of the energy management status of the power system or facility (hereinafter referred to as "EM management unit"). The EM requirement unit 108a has a function of deriving a method for optimizing energy management based on the actual energy management status acquired by the EM status acquisition unit 108, and outputting a battery usage requirement M for the optimization to the usage condition setting unit 104 of the battery usage condition management server 50. The EM instruction unit 108b has a function of instructing or proposing energy management based on the optimal battery usage judgment result N output by the usage condition setting unit 104 to the EM management unit. The functions of the EM status acquisition unit 108, the EM requirement unit 108a, and the EM instruction unit 108b are executed by the processor 1F mounted on the energy management server 70.

[0103] The functions of the components of the battery monitoring system 700 are implemented by the battery monitoring program P7. The battery monitoring program P7 is a program for causing the processor 1 (processors 1A, 1B, 1C, 1D, 1E, 1F) to implement the same functions as the battery monitoring program P5 of Embodiment 5. The battery monitoring program P7 is preferably recorded in a readable manner on the recording medium 40 as needed.

[0104] The other configuration and control are the same as those of the fifth embodiment.

[0105] According to the seventh embodiment, in addition to the state of the secondary battery 2 , the operating state of the vehicle and the energy management state of the power system or facility are taken into consideration, and the optimal battery use can be determined based on these considerations.

[0106] Other than that, the same effects as those of the fifth embodiment are achieved.

[0107] In a modification example particularly related to the battery monitoring system 700 of the seventh embodiment, the use condition setting unit 104 of the battery use condition management server 50 may also concurrently perform the functions of the vehicle operation request unit 107a and the EM request unit 108a. In other modifications, the vehicle operation management unit may perform a part of the functions of the vehicle operation management server 60, or the EM management unit may perform a part of the functions of the energy management server 70. In other modifications, either the vehicle operation management server 60 or the energy management server 70 may be omitted.

[0108] (Implementation 8)

[0109] like Fig. 9As shown, the battery monitoring system 800 of the eighth embodiment is different from the battery monitoring system 700 of the seventh embodiment in that the monitoring data accumulation unit 101a is provided in the vehicle operation management server 60. The monitoring data accumulation unit 101a has a function of accumulating the monitoring data X acquired by the monitoring data acquisition unit 101 before outputting the monitoring data X to the degradation degree inspection unit 102 and the degradation factor determination unit 103 of the battery monitoring server 30.

[0110] The functions of the components of the battery monitoring system 800 are implemented by the battery monitoring program P8. The battery monitoring program P8 is a program for causing the processor 1 (processors 1A, 1B, 1C, 1D, 1E, 1F) to implement the same functions as the battery monitoring program P7 of Embodiment 7. The battery monitoring program P8 is preferably recorded in a recording medium 40 in a readable manner as needed.

[0111] The other configuration and control are the same as those of the seventh embodiment.

[0112] According to the eighth embodiment, the monitoring data X acquired by the monitoring data acquisition unit 101 can be accumulated on the vehicle operation management server 60 side.

[0113] Apart from this, the same effects as those of Implementation 7 are achieved.

[0114] (Implementation method 9)

[0115] like Fig.10 As shown, the battery monitoring system 900 of the ninth embodiment is different from the battery monitoring system 800 of the eighth embodiment in that a monitoring data accumulation unit 101a is provided in the charging station 20. The monitoring data accumulation unit 101a has a function of accumulating the monitoring data X acquired by the monitoring data acquisition unit 101 before outputting the monitoring data X to the degradation degree inspection unit 102 and the degradation factor determination unit 103 of the battery monitoring server 30.

[0116] The functions of the components of the battery monitoring system 900 are implemented by the battery monitoring program P9. The battery monitoring program P9 is a program for causing the processor 1 (processors 1A, 1B, 1C, 1D, 1E, 1F) to implement the same functions as the battery monitoring program P7 of Embodiment 7. The battery monitoring program P9 is preferably recorded in a recording medium 40 in a readable manner as needed.

[0117] The other configuration and control are the same as those of the seventh embodiment.

[0118] According to the ninth embodiment, the monitoring data X acquired by the monitoring data acquisition unit 101 can be accumulated on the charging station 20 side.

[0119] Apart from this, the same effects as those of Implementation 7 are achieved.

[0120] The present disclosure is described based on the above-mentioned embodiments, but it should be understood that the present disclosure is not limited to the above-mentioned methods and structures. The present disclosure also includes various modifications and variations within the same scope. In addition, various combinations and methods, even other combinations and methods that only include one element, more or less elements, are also included in the scope and thought range of the present disclosure. For example, the following methods that apply the above-mentioned methods can also be implemented.

[0121] In the above-described embodiment, the case where the use condition U is displayed is exemplified, but the process of displaying the use condition U may be omitted as needed. The program used in this case may be a program for causing the processor 1 to at least realize the function of acquiring the monitoring data X of the secondary battery, the function of checking the degree of degradation of the secondary battery 2 based on the monitoring data X, the function of determining the degradation factor F based on the monitoring data X when it is determined that the secondary battery 2 is degraded based on the inspection result R of the degree of degradation, and the function of setting the use condition U of the secondary battery 2 based on the degradation factor F.

[0122] In the above-described embodiment, the case where the use condition U is set based on both the inspection result R of the degree of degradation of the secondary battery 2 and the degradation factor F is exemplified, but instead of this, the degree of degradation of the secondary battery 2 is not inspected and the use condition U is set based only on the degradation factor F of the secondary battery 2. The program used in this case only needs to be a program for causing the processor 1 to at least realize the function of setting the use condition U of the secondary battery 2 based on the degradation factor F of the secondary battery 2.

[0123] In the above embodiment, the monitoring data X of the secondary battery 2 is acquired and the use condition U is set according to the degradation factor F determined based on the monitoring data X. However, the use condition U may be directly set according to the degradation factor F determined in advance instead.

[0124] <Display program>

[0125] The battery monitoring program described in this embodiment includes a display program P10 described as a technical idea described later (see Fig.11 ). Alternatively, the display program P10 may be independent and not included in the battery monitoring program. The display program P10 is recorded in a non-migratable storage medium of the charging station 20. The display program P10 displays information to the user through the use condition display unit 106 of the charging station 20.

[0126] In addition, the display program P10 can also be downloaded from a cloud server or the like to a user's desktop or notebook personal computer (PC), tablet terminal, mobile terminal or other holding device 50. Furthermore, the display program P10 can also display information to the user through the screen of the holding device 50. In such a case, for example Fig.11 The display unit 51 shown corresponds to the screen of the held device 50. In addition, the display program P10 may be stored in a cloud server.

[0127] [Technical Thought 1]

[0128] A display program (P10) is used to enable a processor (1) to realize a function of causing a display unit (51) to display a degradation factor (F) of a secondary battery (2) and a usage condition (U) of the secondary battery.

[0129] [Technical Thoughts 2]

[0130] According to the display program described in the technical idea 1, the processor is configured to realize a function of causing the display unit to display the monitoring data (X) of the secondary battery for specifying the deterioration factor of the secondary battery.

[0131] [Technical Thought 3]

[0132] According to the display program described in the technical idea 1 or the technical idea 2, the processor realizes a function of causing the display unit to display the inspection result (R) of the degree of degradation of the secondary battery.

Claims

1. A battery monitoring program (P1, P2, P3, P4, P5, P6, P7, P8, P9), wherein: The invention is used to enable a processor (1) to realize a function of setting a usage condition (U) of the secondary battery based on a degradation factor (F) of the secondary battery (2).

2. The battery monitoring program according to claim 1, wherein: The invention is used to make the processor (1) realize the function of acquiring the monitoring data (X) of the secondary battery and the function of determining the degradation factor based on the acquired monitoring data.

3. The battery monitoring program according to claim 2, wherein: The invention is used to make the processor (1) realize the function of checking the degradation degree of the secondary battery based on the acquired monitoring data, and the function of setting the use condition based on the detection result of the degradation degree and the degradation factor.

4. The battery monitoring program according to claim 3, wherein: Used to enable the processor (1) to implement: a function of checking a degree of degradation of the secondary battery based on the acquired monitoring data; and A function of setting the use condition based on at least one of the inspection result of the degradation degree, the degradation factor, the operation status of the vehicle, and the energy management status of the power system or facility.

5. The battery monitoring program according to claim 1, wherein: It is used to enable the processor (1) to realize the function of displaying the above-mentioned usage conditions that are set.

6. A recording medium (40), wherein: The battery monitoring program according to any one of claims 1 to 5 is recorded in a readable manner.

7. A battery monitoring system (100, 200, 300, 400, 500, 600, 700, 800, 900) for monitoring a secondary battery (2), wherein: A use condition setting unit (104) is provided for setting a use condition (U) of the secondary battery based on a degradation factor (F) of the secondary battery.

8. The battery monitoring system according to claim 7, wherein: The invention comprises a monitoring data acquisition unit (101) for acquiring monitoring data (X) of the secondary battery, and a degradation factor determination unit (103) for determining the degradation factor based on the monitoring data acquired by the monitoring data acquisition unit.

9. The battery monitoring system according to claim 8, wherein: A degradation degree inspection unit (102) is provided, which inspects the degradation degree of the secondary battery based on the monitoring data acquired by the monitoring data acquisition unit, The use condition setting unit sets the use condition based on a result (R) of inspection of the degree of degradation by the degree of degradation inspection unit and the degradation factor determined by the degradation factor determination unit.

10. The battery monitoring system according to claim 9, wherein: The usage condition setting unit sets the usage condition based on at least one of the inspection result (R) of the degradation degree by the degradation degree inspection unit, the degradation factor determined by the degradation factor determination unit, the operating condition of the vehicle, and the energy management condition of the power system or facility.

11. The battery monitoring system according to any one of claims 7 to 10, wherein: A use condition display unit (106) is provided, which displays the use condition set by the use condition setting unit.

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