Battery monitoring program, recording medium, and battery monitoring system

Abstract

To provide a battery monitoring technique effective for efficiently using a secondary battery.SOLUTION: The battery monitoring program P7 is a program for causing the processor 1 to implement a function of acquiring the monitoring data X of the secondary battery 2, a function of inspecting the degree of degradation of the secondary battery 2 based on the acquired monitoring data X, a function of identifying the degradation factor F based on the acquired monitoring data X, and a function of setting the condition of use U of the secondary battery 2 based on the inspection result R of the degree of degradation, the degradation factor F, and at least one of the operating status of the electric vehicle 10 and the energy management status of the electric power system or the facility.SELECTED DRAWING: Figure 8

Description

[Technical Field]

[0001] The present disclosure relates to techniques for monitoring batteries. [Background technology]

[0002] Patent Document 1 listed below discloses a technology that uses an array of electric energy storage devices such as battery packs. In this technology, for example, battery packs are classified based on their battery characteristics, and multiple battery packs with the same battery characteristics are used simultaneously at a destination. Battery characteristics include the period of use, electrical resistance, remaining capacity, estimated life, etc. According to this technology, by using multiple battery packs with the same battery characteristics simultaneously, it is expected that the battery performance of each battery pack can be maximized. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Special Publication No. 2017-509867 Summary of the Invention [Problem to be solved by the invention]

[0004] A battery pack contains multiple secondary batteries. These secondary batteries have factors that cause them to deteriorate. Therefore, even if multiple secondary batteries with the same battery performance are used, as in the technology described in Patent Document 1, for example, if the factors that cause the multiple secondary batteries to deteriorate are different, continued use will result in variations in the battery performance (lifespan) of the multiple secondary batteries. This has led to the problem that it is difficult to use secondary batteries efficiently.

[0005] The present disclosure seeks to provide a battery monitoring technique that is effective for efficient use of secondary batteries. [Means for solving the problem]

[0006] One aspect of the present disclosure is a battery monitoring program for causing a processor to realize the following functions: acquiring monitoring data of a secondary battery; inspecting the degree of deterioration of the secondary battery based on the acquired monitoring data; identifying a cause of the deterioration based on the acquired monitoring data; and setting usage conditions of the secondary battery based on the inspection results of the degree of deterioration, the cause of the deterioration, and at least one of an operating status of a vehicle and an energy management status of a power system or a facility; is located.

[0007] Another aspect of the present disclosure is a recording medium on which the battery monitoring program is readably recorded; is located.

[0008] Yet another aspect of the present disclosure is a method for manufacturing a semiconductor device comprising: A battery monitoring system for monitoring a secondary battery, a monitoring data acquisition unit that acquires monitoring data of the secondary battery; a deterioration level inspection unit that inspects the deterioration level of the secondary battery based on the monitoring data acquired by the monitoring data acquisition unit; a degradation factor identification unit that identifies a degradation factor based on the monitoring data acquired by the monitoring data acquisition unit; a usage condition setting unit that sets usage conditions (U) of the secondary battery based on the inspection result of the deterioration degree, the deterioration factor, and at least one of an operating status of the vehicle and an energy management status of a power system or a facility; is located. [Effects of the Invention]

[0009] According to the above-described aspects, the life of the secondary battery can be extended, the operating rate can be increased, and the secondary battery can be used efficiently.

[0010] Note that the symbols in parentheses in the claims indicate the correspondence with the specific means described in the embodiments described below, and do not limit the technical scope of the present disclosure. [Brief explanation of the drawings]

[0011] The above and other objects, features and advantages of the present disclosure will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: [Figure 1] FIG. 1 is a block diagram showing the configuration of a battery monitoring system according to a first embodiment of the present invention; [Figure 2] FIG. 2 is a flowchart showing a usage condition setting control by the battery monitoring system of the first embodiment; [Figure 3] FIG. 3 is a block diagram showing the configuration of a battery monitoring system according to a second embodiment of the present invention; [Figure 4] FIG. 4 is a block diagram showing the configuration of a battery monitoring system according to a third embodiment; [Figure 5] FIG. 5 is a block diagram showing the configuration of a battery monitoring system according to a fourth embodiment; [Figure 6] FIG. 6 is a block diagram showing the configuration of a battery monitoring system according to a fifth embodiment; [Figure 7] FIG. 7 is a block diagram showing the configuration of a battery monitoring system according to a sixth embodiment; [Figure 8] FIG. 8 is a block diagram showing a configuration of a battery monitoring system according to the first embodiment; [Figure 9] FIG. 9 is a block diagram showing the configuration of a battery monitoring system according to a second embodiment; [Figure 10] FIG. 10 is a block diagram showing a configuration of a battery monitoring system according to a third embodiment; [Figure 11] FIG. 11 is a block diagram showing the configuration of a battery monitoring system including a display program. DETAILED DESCRIPTION OF THE INVENTION

[0012] The battery monitoring technology according to the above-described embodiment will be described in detail below with reference to the drawings.

[0013] (Reference form 1) As shown in FIG. 1 , a battery monitoring system 100 of the first embodiment is a system for monitoring a secondary battery 2 that constitutes a battery mounted on a vehicle 10, such as an electric vehicle or a hybrid vehicle. The secondary battery 2 is an assembled battery formed by combining a plurality of battery cells. The secondary battery 2, together with a BMU (Battery Management Unit), forms a so-called "battery pack," which includes a monitoring data acquisition unit 101, a deterioration level inspection unit 102, a deterioration factor identification unit 103, a usage condition setting unit 104, and a battery control unit 105, all of which will be described later. The secondary battery 2 (battery pack) may be a replaceable (cartridge-type) battery that is removably mounted on the vehicle 10, or may be a fixed battery that is non-removably mounted on the vehicle 10.

[0014] The battery monitoring system 100 includes, as its components, a monitoring data acquisition unit 101, a deterioration level inspection unit 102, a deterioration factor identification unit 103, a usage condition setting unit 104, a battery control unit 105, and a usage condition display unit 106. The functions of these components are executed by processors 1 (processors 1A and 1B) provided in the battery pack of the vehicle 10 and in the charging station 20, respectively.

[0015] The charging station 20 is a facility configured to be capable of at least charging the secondary battery 2 mounted on the vehicle 10. At this charging station 20, the charging operation may be performed on the secondary battery 2 that is still mounted on the vehicle 10, or on the secondary battery 2 that has been removed from the vehicle 10. After charging, the secondary battery 2 may be used again in the vehicle 10, or in another vehicle, or may be reused in a secondary use destination other than the vehicle 10. Furthermore, the charging station 20 may be provided with additional equipment for replacing the secondary battery 2, or the charging station 20 may be replaced with an exchange station that is capable of at least replacing the secondary battery 2.

[0016] The functions of each component of the battery monitoring system 100 are realized by a battery monitoring program P1. This battery monitoring program P1 is a program that causes the processor 1 to perform at least the following functions: acquire secondary battery monitoring data X; inspect the degree of deterioration of the secondary battery 2 based on the monitoring data X; identify a deterioration factor F of the secondary battery 2 based on the monitoring data X; set usage conditions U for the secondary battery 2 based on the deterioration level inspection result R and the deterioration factor; and display the usage conditions U. This battery monitoring program P1 is preferably readably recorded on a recording medium 40 as needed. Here, "recording" can also be referred to as "storing." Various types of recording medium 40 can be used, such as memory type, disk type, and tape type.

[0017] In the drawings relating to this embodiment, the recording medium 40 is depicted separately from 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. The reason for depicting the recording medium 40 separately from the above-mentioned components in the drawings is to avoid a cumbersome or limited display of the storage location of the battery monitoring program.

[0018] The term "processor 1" here broadly encompasses the processing devices that perform data calculations and conversions, execute programs, control other devices, etc. Typically, processor 1 is configured with a CPU (Central Processing Unit) that controls the entire computer, or an MPU (Micro Processing Unit) that integrates some of the functions of the CPU.

[0019] In this embodiment, the functions of the monitoring data acquisition unit 101, the deterioration level inspection unit 102, the deterioration factor identification unit 103, the usage condition setting unit 104, and the battery control unit 105 are executed by a processor 1A mounted on the BMU in the battery pack. The function of the usage condition display unit 106 is executed by a processor 1B mounted on the charging station 20.

[0020] The allocation of the multiple components (functional elements) of the battery monitoring system 100 between the vehicle 10 and the charging station 20 is not limited to that shown in FIG. 1, and can be changed appropriately as needed.

[0021] The monitoring data acquisition unit 101 has a function of acquiring monitoring data X of the secondary battery 2. This may be data sensed directly from the secondary battery 2, or data obtained after the sensed data has been converted into history information by a control unit or the like. The monitoring data X may be time-series data such as voltage, charge / discharge current, SOC (State of Charge), battery temperature, ambient temperature around the battery, accumulated charge time, accumulated discharge time, accumulated current, and AC impedance. Furthermore, the monitoring data of the battery pack may be time-series data such as the total voltage of the battery pack, the maximum and / or minimum voltage of the secondary batteries in the battery pack, battery temperature, and SOC. The term "voltage" here includes open-circuit voltage and closed-circuit voltage. The monitoring data acquisition unit 101 may be a sensor capable of detecting the monitoring data X to be acquired, such as a voltage sensor, a current sensor, or a temperature sensor, and the SOC is calculated and acquired based on these values.

[0022] The deterioration level inspection unit 102 has a function of inspecting the deterioration level of the secondary battery 2 based on the monitoring data X acquired by the monitoring data acquisition unit 101. When an evaluation parameter such as the capacity or internal resistance of the secondary battery 2 is selected from the monitoring data X, the deterioration level inspection unit 102 calculates the deterioration level from the value of the evaluation parameter. Then, an inspection result R indicating whether or not the deterioration level exceeds a preset threshold is derived. If the deterioration level exceeds the threshold, the inspection result R indicates that the secondary battery 2 has deteriorated to a predetermined level. On the other hand, if the deterioration level is equal to or less than the threshold, the inspection result R indicates that the deterioration level of the secondary battery 2 is low.

[0023] The degradation factor identification unit 103 has a function of identifying a degradation factor F based on monitoring data X. The degradation factor identification unit 103 includes a feature extraction unit 103a and an analysis unit 103b. The feature extraction unit 103a extracts a feature Y to be used in the analysis unit 103b from the monitoring data X. The feature Y is preferably at least one of integrated information of a parameter acquired as the monitoring data X, parameter variation information, and simultaneous frequency information of multiple parameters. Typical parameters include voltage, SOC, temperature, and current. The analysis unit 103b performs an analysis process using the feature Y extracted by the feature extraction unit 103a to derive the degradation factor F.

[0024] The usage condition setting unit 104 has a function of setting usage conditions U of the secondary battery 2 based on the inspection result R by the deterioration degree inspection unit 102 and the deterioration factors F derived by the analysis unit 103b. Examples of the usage conditions U of the secondary battery 2 include charging conditions, input / output conditions, SOC usage conditions, temperature adjustment conditions, usage application conditions, usage region conditions, usage order conditions, and battery combination conditions.

[0025] The battery control unit 105 has a function of controlling the secondary battery 2 based on the use conditions U set by the use condition setting unit 104 .

[0026] The use condition display unit 106 has a function of displaying the use conditions U set by the use condition setting unit 104. The use conditions U are preferably displayed on the screen of each device such as a desktop or notebook personal computer (PC), a tablet terminal, or a mobile terminal.

[0027] In this embodiment, the location where the usage condition display unit 106 is provided is not limited to the charging station 20. Instead of or in addition to the charging station 20, the usage condition display unit 106 may be provided at a secondary usage destination of the secondary battery 2, for example.

[0028] Next, the use condition setting control by the battery monitoring system 100 will be described with reference to Fig. 2. This use condition setting control is achieved by sequentially executing steps S1 to S5 in Fig. 2. Note that one or more steps may be added to these steps as necessary, or multiple steps may be appropriately integrated.

[0029] As shown in FIG. 2, step S1 is a step in which monitoring data acquisition unit 101 (see FIG. 1) acquires monitoring data X of secondary battery 2. According to step S1, monitoring data X of secondary battery 2 is acquired. Step S2 is a step in which deterioration level of secondary battery 2 is inspected by deterioration level inspection unit 102 (see FIG. 1) based on the monitoring data X acquired in step S1. According to step S2, inspection result R of the deterioration level of secondary battery 2 is derived according to the detailed inspection as described above.

[0030] Step S3 is a step in which the deterioration factor F of the secondary battery 2 is identified through an analysis process by the deterioration factor identification unit 103 (see FIG. 1). According to this step S3, the deterioration factor F of the secondary battery 2 is identified. Here, the "deterioration factor F" refers to the feature amount Y, among the multiple feature amounts Y, that is the factor that caused the secondary battery 2 to deteriorate. Note that the number of deterioration factors F identified through the analysis process is not particularly limited, and one or multiple deterioration factors F may be identified. When there are multiple deterioration factors F, the main factor with the greatest influence among these multiple deterioration factors F may be determined to be the deterioration factor F.

[0031] In step S3, first, a feature quantity Y is extracted from the monitoring data X by the feature quantity extraction unit 103a (see FIG. 1). Then, a deterioration factor F is derived by the analysis unit 103b from the extracted feature quantity Y. Note that step S3 may be executed subsequent to step S2, or may be executed before step S2, or may be executed simultaneously with step S2.

[0032] As an example of an analysis method for this case, 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 deterioration of the secondary battery 2. The damage amounts for the multiple feature amounts Y are calculated and compared, and the feature amount Y with the greatest damage amount can be identified as the deterioration factor F.

[0033] In this analysis method, the degree of influence of each feature value Y is set in advance based on the characteristics of the degraded battery. For example, the degradation levels of multiple degraded batteries are set as the objective variable, and each feature value Y is set as an explanatory variable, and a model is created by performing multivariate analysis. The contribution (importance) of the resulting feature value Y to this model is taken as the influence of that feature value Y. Note that it is desirable to set each feature value Y as a standardized explanatory variable so that the contribution (importance) of each feature value Y can be compared fairly.

[0034] Step S4 is a step in which the use condition setting unit 104 sets the use conditions of the secondary battery 2. According to step S4, the use conditions U of the secondary battery 2 are set based on both the inspection result R derived in step S2 and the deterioration factor F identified in step S3.

[0035] Here, an example of the use condition U will be given. The use condition U is preferably set appropriately as follows for each of the following cases: when the battery pack is fixed to the vehicle 10 (hereinafter referred to as "Case 1"), when an operation service for operating multiple vehicles 10 is adopted (hereinafter referred to as "Case 2"), when the battery pack is replaceable with respect to the vehicle 10 (hereinafter referred to as "Case 3"), and when the battery pack is reused at a secondary use destination other than the vehicle 10 (hereinafter referred to as "Case 4").

[0036] <Case 1> As the use conditions U in case 1, typically, charging conditions, input / output conditions, SOC use conditions, and temperature adjustment conditions can be set. To prevent the deterioration of the identified deterioration factor F from progressing, the charging conditions can be, for example, conditions that reduce the current value during charging of the secondary battery 2 or increase the upper limit voltage. The input / output conditions can be, for example, conditions that reduce the upper limit of input / output of the secondary battery 2. The SOC use conditions can be, for example, conditions that narrow the SOC use range of the secondary battery 2. The temperature adjustment conditions can be, for example, conditions that increase the cooling capacity or the heating capacity of the secondary battery 2. Since which use conditions should be changed is determined according to the deterioration factor F, it is possible to avoid restricting battery performance more than necessary.

[0037] <Case 2> As the use conditions U in case 2, typically, a use application condition, a use area condition, and a use order condition can be set. As the use application condition, a condition can be adopted in which the vehicles 10 equipped with the secondary batteries 2 are allocated, for example, based on the required driving distance, the required input / output power of the secondary batteries 2, or the required operating time of the secondary batteries 2, so as to level out the deterioration factor F. As the use area condition, a condition can be adopted in which the vehicles 10 equipped with the secondary batteries 2 are allocated, for example, based on the environmental temperature of the region, the required driving distance in the region of use, the required input / output power of the secondary batteries 2 in the region of use, or the required operating time of the secondary batteries 2, so as to level out the deterioration factor F. As the use order condition, a condition can be adopted in which the order of charging the secondary batteries 2 or the order of use of the secondary batteries 2 is determined, so as to level out the deterioration factor F.

[0038] <Case 3> The use conditions U for Case 3 can typically be set to include a use application condition, a use area condition, a use order condition, and a battery combination condition. Regarding the use application condition, it is possible to adopt conditions such as allocating the vehicles 10 equipped with the secondary batteries 2 based on the required driving distance, the required input / output power of the secondary batteries 2, or the required operating time of the secondary batteries 2 so as to equalize the deterioration factor F. Regarding the use area condition, it is possible to adopt conditions such as allocating the vehicles 10 equipped with the secondary batteries 2 based on the local ambient temperature, the required driving distance of the use area, the required input / output power of the secondary batteries 2, or the required operating time of the secondary batteries 2 so as to equalize the deterioration factor F. Regarding the use order condition, it is possible to adopt conditions such as determining the order in which the secondary batteries 2 are charged or used so as to equalize the deterioration factor F. Regarding the battery combination condition, when multiple secondary batteries 2 are installed in a vehicle 10, it is possible to adopt conditions such as combining multiple secondary batteries 2 so as to equalize the deterioration factor F.

[0039] Specific examples of the relationship between the deterioration factor F and the usage condition U for the above cases 1 to 3 will be described below. For example, if the deterioration factor F is a high temperature or a high SOC, the usage condition U corresponding to this deterioration factor F can be installing the secondary battery 2 in a room-temperature or low-temperature region, improving the cooling performance of the secondary battery 2, or lowering the SOC fluctuation center. If the deterioration factor F is a low temperature or a large current, the usage condition U corresponding to this deterioration factor F can be installing the secondary battery 2 in a room-temperature or high-temperature region, improving the temperature rise performance of the secondary battery 2, or limiting the input performance at low temperatures. If the deterioration factor F is a high average SOC or a large SOC fluctuation range, the usage condition U corresponding to this deterioration factor F can be installing the secondary battery 2 in an area where it is used infrequently, using the secondary battery 2 only when the vehicle 10 is traveling short distances, or limiting the SOC fluctuation range. Note that these relationships between the deterioration factor F and the usage condition U are merely exemplary and are not limited to these relationships.

[0040] Furthermore, in the case of a replaceable secondary battery 2, a specific charging station 20 to which this secondary battery 2 should be placed can be determined from among multiple charging stations 20 based on the deterioration factor F. In this case, it is preferable to classify the multiple charging stations 20 so that each charging station 20 is a location for secondary batteries 2 having the same or similar deterioration factor F. This makes it possible to determine the charging station 20 to which the secondary battery 2 should be placed so that the deterioration factor F is leveled out. Note that the classification of the multiple charging stations 20 may be performed in advance, or may be performed in real time based on information on the multiple secondary batteries 2.

[0041] <Case 4> As the usage condition U for Case 4, for example, it is possible to assign the secondary battery 2 to reuse when the deterioration factor F is leveled out through stationary use, or to assign the secondary battery 2 to reuse so that the deterioration factor F is leveled out in consideration of the intended use and the characteristics of the area of ​​use in the case of reuse, or to assign the secondary battery 2 to rebuilding when the deterioration factor F is leveled out by changing the intended use or area of ​​use in the case of rebuilding. Possible changes in the intended use of a rebuilt battery include changing from an EV (electric vehicle) to an HV (hybrid vehicle) or from long-distance use to short-distance use.

[0042] Step S5 is a step in which the use conditions U set in step S4 are displayed on the use conditions display unit 106 (see FIG. 1). According to step S5, the use conditions U of the secondary battery 2 are displayed on the use conditions display unit 106. In this embodiment, since the use conditions display unit 106 is provided in the charging station 20, the use conditions U can be confirmed at the charging station 20.

[0043] According to the first embodiment, the following effects are achieved.

[0044] In the first embodiment, a process is executed to set the usage conditions U of the secondary battery 2 based on at least the deterioration factors F of the secondary battery 2. This makes it possible to prevent the secondary battery 2 from rapidly deteriorating due to a specific deterioration mechanism. As a result, the life of the secondary battery 2 can be extended, the operating rate can be increased, and the secondary battery 2 can be used efficiently.

[0045] In particular, in the first embodiment, the usage conditions U are set based on both the deterioration level inspection result R and the deterioration factors F. Therefore, compared to when the usage conditions U are set based only on the deterioration level inspection result R, the following advantageous effects are achieved. That is, when the usage conditions U are set based only on the deterioration level inspection result R, it is necessary to uniformly impose usage restrictions on multiple parameters related to the use of the secondary battery 2, but by adding the deterioration factors F, it is possible to narrow down the number of parameters to which usage restrictions are imposed, and it becomes possible to propose more optimal usage conditions U for the secondary battery 2.

[0046] Hereinafter, other embodiments related to the above-described embodiment 1 will be described with reference to the drawings. In the other embodiments, the same elements as those in the above-described embodiment 1 are designated by the same reference numerals, and the description of the same elements will be omitted.

[0047] (Reference form 2) 3 , the battery monitoring system 200 of the second embodiment differs from the battery monitoring system 100 of the first embodiment in that the deterioration level inspection unit 102, the deterioration factor identification unit 103, and the usage condition setting unit 104 are provided in the battery monitoring server 30 instead of in the battery pack of the vehicle 10. The battery monitoring server 30 is a facility for providing a monitoring service for the secondary battery 2. The battery monitoring server 30 may be installed adjacent to the charging station 20, or may be installed in a location remote from the charging station 20.

[0048] The functions of each component of the battery monitoring system 200 are realized by a battery monitoring program P2. This battery monitoring program P2 is a program for causing the processors 1 (processors 1A, 1B, 1C) provided in the battery pack of the vehicle 10, the charging station 20, and the battery monitoring server 30 to realize functions similar to those of the battery monitoring program P1 of the first embodiment. This battery monitoring program P2 is preferably readably recorded on a recording medium 40 as needed.

[0049] The other configurations and controls are the same as those of the first embodiment.

[0050] According to reference form 2, by executing the functions of the deterioration level inspection unit 102, the deterioration cause identification unit 103, and the usage condition setting unit 104 on the battery monitoring server 30 side, the processing load on the battery pack can be reduced compared to reference form 1.

[0051] In addition, the same effects as those of the first embodiment are achieved.

[0052] (Reference form 3) 4, the battery monitoring system 300 of the embodiment differs from the battery monitoring system 200 of the reference embodiment in that a monitoring data accumulation unit 101a is added to the battery pack on the vehicle 10 side, and a deterioration level inspection unit 102, a deterioration cause identification unit 103, a usage condition setting unit 104, and a usage condition display unit 106 are provided in 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 data to the deterioration level inspection unit 102 and the deterioration cause identification unit 103 of the charging station 20.

[0053] The functions of each component of the battery monitoring system 300 are realized by a battery monitoring program P3. This battery monitoring program P3 is a program for causing the processor 1 (processors 1A and 1B) to realize functions similar to those of the battery monitoring program P2 of the reference form 2. This battery monitoring program P3 is preferably readably recorded on the recording medium 40 as needed.

[0054] The other configurations and controls are the same as those of the second embodiment.

[0055] According to the third embodiment, the monitoring data X temporarily stored in the monitoring data storage unit 101a can be output to the charging station 20 when the vehicle 10 or the battery pack arrives at the charging station 20. Alternatively, the monitoring data X temporarily stored in the monitoring data storage unit 101a can be constantly output to the charging station 20 by a data transmission / reception function between the vehicle 10 and the charging station 20. Furthermore, according to the third embodiment, the functions executed by the battery monitoring server 30 in the second embodiment can be consolidated on the charging station 20.

[0056] In addition, the same effects as those of the second embodiment are achieved.

[0057] (Reference form 4) 5, the battery monitoring system 400 of Reference Form 4 differs from the battery monitoring system 200 of Reference Form 2 in that the deterioration level inspection unit 102 and the deterioration cause identification unit 103 are provided in the battery pack of the vehicle 10 instead of in the battery monitoring server 30. This battery monitoring system 400 is preferably used when using an operation service that operates multiple vehicles 10.

[0058] The functions of each component of the battery monitoring system 400 are realized by a battery monitoring program P4. This battery monitoring program P4 is a program for causing the processor 1 (processors 1A, 1B, 1C) to realize functions similar to those of the battery monitoring program P2 of Reference Form 2. This battery monitoring program P4 is preferably readably recorded on the recording medium 40 as needed.

[0059] In this embodiment, the location where the use condition display unit 106 is provided 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 user of the secondary battery 2 or on the administrator side of an operation service that operates a plurality of vehicles 10, for example.

[0060] The other configurations and controls are the same as those of the second embodiment.

[0061] According to the fourth embodiment, all of the functions executed by the battery monitoring server 30 in the second embodiment, except for the function of the usage condition setting unit 104, can be integrated into the battery pack on the vehicle 10 side.

[0062] In addition, the same effects as those of the second embodiment are achieved.

[0063] (Reference form 5) 6, the battery monitoring system 500 of Reference Form 5 differs from the battery monitoring system 400 of Reference Form 4 in that the deterioration level inspection unit 102 and the deterioration cause identification unit 103 are provided in the battery monitoring server 30 instead of in the battery pack on the vehicle 10 side. This battery monitoring system 500 is preferably used when using an operation service that operates multiple vehicles 10.

[0064] The functions of each component of the battery monitoring system 500 are realized by a battery monitoring program P5. This battery monitoring program P5 is a program for causing the processor 1 (processors 1A, 1B, 1C) to realize functions similar to those of the battery monitoring program P4 of Reference Form 4. This battery monitoring program P5 is preferably readably recorded on the recording medium 40 as needed.

[0065] The other configurations and controls are the same as those of the fourth embodiment.

[0066] According to the fifth embodiment, all of the functions executed by the battery pack on the vehicle 10 side in the fourth embodiment, except for the function of the monitoring data acquisition unit 101, can be consolidated on the battery monitoring server 30 side.

[0067] According to reference form 5, by executing the functions of the deterioration level inspection unit 102, the deterioration cause identification unit 103, and the usage condition setting unit 104 on the battery monitoring server 30 side, the processing load on the battery pack can be reduced compared to reference form 4.

[0068] In addition, the same effects as those of the fourth embodiment are achieved.

[0069] (Reference form 6) 7, the battery monitoring system 600 of the sixth embodiment differs from the battery monitoring system 500 of the fifth embodiment in that a monitoring data storage unit 101a is added to the battery pack on the vehicle 10 side, and the deterioration level inspection unit 102 and the deterioration factor identification unit 103 are provided in the charging station 20 instead of the battery monitoring server 30. The monitoring data storage unit 101a has a function of storing the monitoring data X acquired by the monitoring data acquisition unit 101 before outputting the data to the deterioration level inspection unit 102 and the deterioration factor identification unit 103 of the battery monitoring server 30. This battery monitoring system 600 is suitable for use when using an operation service that operates multiple vehicles 10 or when operating replaceable batteries.

[0070] The functions of each component of the battery monitoring system 600 are realized by a battery monitoring program P6. This battery monitoring program P6 is a program for causing the processor 1 (processors 1A, 1B, 1C) to realize functions similar to those of the battery monitoring program P5 of the fifth embodiment. This battery monitoring program P6 is preferably readably recorded on the recording medium 40 as needed.

[0071] The other configurations and controls are the same as those of the fifth embodiment.

[0072] According to the sixth embodiment, all of the functions executed by the battery monitoring server 30 in the fifth embodiment, except for the function of the use condition setting unit 104, can be integrated on the charging station 20 side.

[0073] In addition, the same effects as those of the fifth embodiment are achieved.

[0074] (Embodiment 1) As shown in Figure 8, the battery monitoring system 700 of embodiment 1 differs from the battery monitoring system 500 of reference embodiment 5 in that the usage condition setting unit 104 is provided in the battery usage condition management server 50 instead of the battery monitoring server 30, and in that it further includes a vehicle operation management server 60 and an energy management management server 70.

[0075] In the battery use condition management server 50, the use condition setting unit 104 has a function of determining optimal battery use based on the state of the secondary battery 2 (deterioration level inspection result R, deterioration factor F) acquired from the battery monitoring server 30, a request from a vehicle operation request unit 107a (described later), and a request from an energy management request unit 108a (described later). The use condition setting unit 104 also has a function of outputting the determination result of optimal battery use to the use condition display unit 106, and returning the determination result to the vehicle operation management server 60 and the energy management server 70. These functions of the use condition setting unit 104 are executed by a processor 1D mounted on the battery use condition management server 50.

[0076] 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 an actual vehicle operation status from a vehicle operation status manager or management system (hereinafter referred to as a "vehicle operation management unit"). The vehicle operation request unit 107a has a function of deriving a method for efficiently operating a vehicle based on the actual vehicle operation status acquired by the vehicle operation status acquisition unit 107, and outputting a battery use request 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 to the vehicle operation management unit vehicle operation based on the optimal battery use determination result N output by the use condition setting unit 104. The functions of the vehicle operation status acquisition unit 107, the vehicle operation request unit 107a, and the vehicle operation instruction unit 107b are each executed by a processor 1E installed in the vehicle operation management server 60.

[0077] The energy management server 70 is provided with an energy management status acquisition unit 108, an energy management request unit 108a, and an energy management instruction unit 108b. Here, the term "energy management" is also referred to as "energy management" for convenience. The energy management 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 a power grid or facility (hereinafter referred to as the "energy management management unit"). The energy management request unit 108a has a function of deriving a method for optimizing energy management based on the actual energy management status acquired by the energy management status acquisition unit 108, and outputting a battery usage request M aimed at the optimization to the usage condition setting unit 104 of the battery usage condition management server 50. The energy management instruction unit 108b has a function of instructing or proposing energy management to the energy management management unit based on the optimal battery usage determination result N output by the usage condition setting unit 104. The functions of the energy management status acquisition unit 108, the energy management request unit 108a, and the energy management instruction unit 108b are executed by a processor 1F mounted on the energy management server 70.

[0078] The functions of each component of the battery monitoring system 700 are realized by a battery monitoring program P7. This battery monitoring program P7 is a program for causing the processor 1 (processors 1A, 1B, 1C, 1D, 1E, 1F) to realize functions similar to those of the battery monitoring program P5 of the fifth embodiment. This battery monitoring program P7 is preferably readably recorded on the recording medium 40 as needed.

[0079] The other configurations and controls are the same as those of the fifth embodiment.

[0080] According to the first embodiment, it is possible to determine optimal battery usage by taking into consideration the state of the secondary battery 2, as well as the operating status of the vehicle and the energy management status of the power system or facility.

[0081] In addition, the same effects as those of the fifth embodiment are achieved.

[0082] In a modified example particularly related to the battery monitoring system 700 of the first embodiment, the functions of the vehicle operation request unit 107a and the energy management request unit 108a may be performed by the usage condition setting unit 104 of the battery usage condition management server 50. In another modified example, a vehicle operation management unit may perform some of the functions of the vehicle fleet management server 60, and an energy management unit may perform some of the functions of the energy management server 70. In yet another modified example, either the vehicle fleet management server 60 or the energy management server 70 may be omitted.

[0083] (Embodiment 2) 9, the battery monitoring system 800 of the second embodiment differs from the battery monitoring system 700 of the first embodiment in that a monitoring data accumulation unit 101a is provided in the vehicle fleet 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 data to the deterioration level inspection unit 102 and the deterioration cause identification unit 103 of the battery monitoring server 30.

[0084] The functions of each component of the battery monitoring system 800 are realized by a battery monitoring program P8. This battery monitoring program P8 is a program for causing the processor 1 (processors 1A, 1B, 1C, 1D, 1E, 1F) to realize functions similar to those of the battery monitoring program P7 of embodiment 1. This battery monitoring program P8 is preferably readably recorded on the recording medium 40 as needed.

[0085] The other configurations and controls are the same as those in the first embodiment.

[0086] According to the second embodiment, the monitoring data X acquired by the monitoring data acquisition unit 101 can be accumulated on the vehicle operation management server 60 side.

[0087] In addition, the same effects as those of the first embodiment are achieved.

[0088] (Embodiment 3) 10 , the battery monitoring system 900 of the third embodiment differs from the battery monitoring system 800 of the third embodiment in that a monitoring data storage unit 101a is provided in the charging station 20. The monitoring data storage unit 101a has a function of storing the monitoring data X acquired by the monitoring data acquisition unit 101 before outputting the data to the deterioration level inspection unit 102 and the deterioration cause identification unit 103 of the battery monitoring server 30.

[0089] The functions of the components of the battery monitoring system 900 are realized by a battery monitoring program P9. This battery monitoring program P9 is a program for causing the processor 1 (processors 1A, 1B, 1C, 1D, 1E, 1F) to realize functions similar to those of the battery monitoring program P7 of embodiment 1. This battery monitoring program P9 is preferably readably recorded on the recording medium 40 as needed.

[0090] The other configurations and controls are the same as those in the first embodiment.

[0091] According to the third embodiment, the monitoring data X acquired by the monitoring data acquisition unit 101 can be accumulated on the charging station 20 side.

[0092] In addition, the same effects as those of the first embodiment are achieved.

[0093] Although the present disclosure has been described based on the above-described embodiments, it is understood that the present disclosure is not limited to these forms and structures. The present disclosure also encompasses various modifications and modifications within the scope of equivalents. In addition, various combinations and forms, as well as other combinations and forms including only one element, more than one element, or less than one element, are also within the scope and spirit of the present disclosure. For example, the following forms can be implemented by applying the above-described forms.

[0094] In the above embodiment, the case where the use conditions U are displayed has been exemplified, but the process of displaying the use conditions U may be omitted as necessary. In this case, it is sufficient for the program used to cause the processor 1 to realize at least the following functions: acquiring monitoring data X of the secondary battery; inspecting the deterioration level of the secondary battery 2 based on the monitoring data X; identifying a deterioration factor F based on the monitoring data X when it is determined that the secondary battery 2 has deteriorated based on the deterioration level inspection result R; and setting the use conditions U of the secondary battery 2 based on the deterioration factor F.

[0095] In the above embodiment, an example has been given of a case where the usage conditions U are set based on both the inspection result R of the deterioration level of the secondary battery 2 and the deterioration factors F, but instead, the usage conditions U may be set based only on the deterioration factors F of the secondary battery 2 without inspecting the deterioration level of the secondary battery 2. In this case, it is sufficient for the program used to enable the processor 1 to at least realize the function of setting the usage conditions U of the secondary battery 2 based on the deterioration factors F of the secondary battery 2.

[0096] In the above embodiment, an example is given of a case where monitoring data X of the secondary battery 2 is acquired and the usage conditions U are set from the deterioration factors F identified from this monitoring data X, but instead, the usage conditions U may be set directly from the deterioration factors F identified in advance.

[0097] <Display program> The battery monitoring program described in this embodiment includes at least a part of a display program P10 (see FIG. 11), which will be described later as a technical concept. Alternatively, the display program P10 may not be included in the battery monitoring program but may be a separate program. The display program P10 is recorded in a non-transitory storage medium of the charging station 20. The display program P10 displays information to the user on the usage conditions display unit 106 of the charging station 20.

[0098] Furthermore, this display program P10 may be downloaded from a cloud server or the like to a user's owned device 50, such as a desktop or notebook personal computer (PC), a tablet terminal, or a mobile terminal. The display program P10 may then display information to the user on the screen of the owned device 50. In such a case, for example, the display unit 51 shown in FIG. 11 corresponds to the screen of the owned device 50. The display program P10 may be stored on a cloud server.

[0099] [Technical thought 1] A display program (P10) for causing the processor (1) to realize a function of displaying the deterioration factors (F) of the secondary battery (2) and the usage conditions (U) of the secondary battery on the display unit (51). [Technical thought 2] A display program according to Technical Idea 1, which causes a processor to realize a function of displaying monitoring data (X) of the secondary battery on the display unit in order to identify the cause of deterioration of the secondary battery. [Technical thought 3] A display program according to Technical Idea 1 or Technical Idea 2, for causing a processor to realize a function of displaying the inspection result (R) of the deterioration level of the secondary battery on the display unit. [Explanation of symbols]

[0100] 1 (1A, 1B, 1C)...processor, 2...secondary battery, 40...recording medium, 50...owned device, 51...display unit, 100, 200, 300, 400, 500, 600...battery monitoring system, 101...monitoring data acquisition unit, 102...deterioration level inspection unit, 103...deterioration factor identification unit, 104...usage condition setting unit, 106...usage condition display unit, P1, P2, P3, P4, P5, P6...battery monitoring program, P10...display program, F...deterioration factor, R...deterioration level inspection result, U...usage conditions, X...monitoring data

Claims

1. A battery monitoring program (P7, P8, P9) for causing a processor (1) to realize the following functions: acquiring monitoring data (X) of a secondary battery (2); inspecting the degree of deterioration of the secondary battery based on the acquired monitoring data; identifying a deterioration factor (F) based on the acquired monitoring data; and setting usage conditions (U) of the secondary battery based on the inspection results of the degree of deterioration, the deterioration factor, and at least one of the vehicle operating status and the energy management status of the power system or facility.

2. 2. The battery monitoring program according to claim 1, which causes a processor (1) to realize a function of displaying the set use conditions.

3. A recording medium (40) on which the battery monitoring program according to claim 1 or 2 is readably recorded.

4. A battery monitoring system for monitoring a secondary battery (2), a monitoring data acquisition unit (101) that acquires monitoring data (X) of the secondary battery; a deterioration level inspection unit (102) that inspects the deterioration level of the secondary battery based on the monitoring data acquired by the monitoring data acquisition unit; a deterioration factor identification unit (103) that identifies a deterioration factor (F) based on the monitoring data acquired by the monitoring data acquisition unit; a usage condition setting unit (104) that sets usage conditions (U) of the secondary battery based on the inspection result of the deterioration degree, the deterioration factor, and at least one of an operating status of the vehicle and an energy management status of the power system or facility. Battery monitoring system (700, 800, 900).

5. 5. The battery monitoring system according to claim 4, further comprising a use condition display unit (106) that displays the use conditions set by the use condition setting unit.

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