State sensor device for secondary battery

Abstract

To provide a state sensor device of a secondary battery capable of easily coping with an increase in the lineup of secondary batteries mountable in a vehicle.SOLUTION: A state sensor device for a secondary battery mounted in a vehicle comprises an auxiliary device, a secondary battery for supplying power to the auxiliary device, and a vehicle controller for controlling travel. The state sensor device includes: a sensor for measuring a first state quantity including current and voltage of the secondary battery; and a controller for calculating a second state quantity relating to the capacity of the secondary battery based on an output of the sensor and type information corresponding to the type of the secondary battery, and communicating with the vehicle controller. The controller is configured to be able to determine the type information of the secondary battery even when information indicating the type of the secondary battery is not received from the vehicle controller.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a state sensor device for a storage battery mounted on a vehicle. [Background technology]

[0002] Patent Document 1 describes a system for determining the type of storage battery.

[0003] In general, a vehicle is equipped with a storage battery that supplies power to auxiliary devices, a status sensor device that monitors the status of the storage battery, and a vehicle controller that controls driving. The formula for calculating the state quantity of the storage battery may differ depending on the type of storage battery.

[0004] Conventionally, information on the type of storage battery is stored in a vehicle controller and transmitted from the vehicle controller to a status sensor device. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 10-090379 Summary of the Invention [Problem to be solved by the invention]

[0006] A change in the vehicle specifications may increase the lineup of storage batteries that can be installed in the vehicle. In a configuration in which information on the type of storage battery is transmitted from the vehicle controller to the status sensor device, when the type of storage battery is changed, the vehicle controller must also be changed to a configuration corresponding to the changed type of storage battery. Alternatively, the data of the vehicle controller must be rewritten to correspond to the changed type of storage battery. If an increase in the lineup of storage batteries results in both vehicle controllers that are compatible with the lineup and vehicle controllers that are not compatible with the lineup coexisting, parts management becomes complicated in the vehicle manufacturing process.

[0007] An object of the present invention is to provide a storage battery status sensor device that can easily accommodate an increase in the lineup of storage batteries that can be mounted on vehicles. [Means for solving the problem]

[0008] The storage battery state sensor device according to the present invention comprises: A storage battery state sensor device mounted on a vehicle including an auxiliary device, a storage battery that supplies power to the auxiliary device, and a vehicle controller that controls driving, A sensor that measures a first state quantity including a current and a voltage of the storage battery; a controller that calculates a second state quantity related to a capacity of the storage battery based on an output of the sensor and type information according to the type of the storage battery, and communicates with the vehicle controller; Equipped with The controller is configured to be able to determine the type information even when information indicating the type of the storage battery is not received from the vehicle controller. Effect of the Invention

[0009] According to the present invention, it is possible to provide a storage battery state sensor device that can easily accommodate an increase in the lineup of storage batteries that can be mounted on a vehicle, even if the lineup increases. [Brief description of the drawings]

[0010] [Figure 1] 1 is a block diagram showing a configuration of a vehicle equipped with a storage battery state sensor device according to an embodiment of the present invention; [Diagram 2] FIG. 2 is a block diagram showing the state sensor device of FIG. 1; [Diagram 3] FIG. 4 is a diagram showing first map data stored in a controller. [Figure 4] FIG. 4 is a diagram showing learning map data stored in a controller. [Diagram 5] 1 is a graph showing an example of a change pattern of voltage and current for identifying the type of storage battery. [Figure 6]4 is a flowchart illustrating an example of a control process executed by a controller. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

[0012] FIG. 1 is a block diagram showing the configuration of a vehicle equipped with a storage battery state sensor device according to an embodiment of the present invention.

[0013] 1 includes drive wheels 2, an engine 10 that is an internal combustion engine capable of driving the drive wheels 2, a traction motor 12 that can drive the drive wheels 2, a high-voltage battery 14 that supplies power for driving to the traction motor 12, an inverter 16 that converts power between the high-voltage battery 14 and the traction motor 12, a vehicle controller 21 that controls driving, a start motor 18 that starts the engine 10, a restart motor 19 that restarts the engine 10, a storage battery 20 that supplies power to the auxiliary equipment, and a status sensor device 23 that monitors the status of the storage battery 20. The vehicle controller 21, the start motor 18, and the restart motor 19 correspond to the auxiliary equipment. In this specification, the auxiliary equipment means electrical equipment other than the traction motor 12 that operates with power from the storage battery 20.

[0014] The storage battery 20 outputs a voltage (12V, 24V, etc.) lower than the voltage of the high voltage battery 14. The storage battery 20 may be a lead battery, a lithium ion secondary battery, etc., but the material, etc. are not particularly limited. As the storage battery 20, multiple types of storage batteries with different characteristics and capacities can be used.

[0015] The status sensor device 23 includes a sensor 231 (current sensor, voltage sensor, temperature sensor, etc.) that measures a first state quantity of the storage battery 20, a controller 232 that calculates a second state quantity of the storage battery 20, and a communication unit 233 that performs communication. The first state quantity is a state quantity of the storage battery 20 that can be directly measured, such as current, voltage, temperature, etc. The second state quantity is a state quantity related to the capacity of the storage battery 20 that can be estimated from the first state quantity or its history, such as SOC (State Of Charge) and internal resistance. The second state quantity calculated by the controller 232 may include other state quantities, such as a deterioration level (SOH: State of Health).

[0016] The status sensor device 23 is configured so as to be fixable to the electrode portion of the storage battery 20, as shown in FIG.

[0017] The communication unit 233 can communicate with the vehicle controller 21 via, for example, a Local Interconnect Network (LIN). The controller 232 sends information on the second state quantity to the vehicle controller 21 via the communication unit 233. The information on the second state quantity may be, for example, information on the second state quantity itself, information indicating which stage the second state quantity is in, or response information such as whether the second state quantity is equal to or greater than a designated value.

[0018] The vehicle controller 21 performs drive control of the engine 10 and the traction motor 12 in response to the driving operation. This drive control generates power or braking force for the drive wheels 2 in response to the driving operation. The vehicle controller 21 also performs control to switch between running using the power of the engine 10 and running using only the power of the traction motor 12 (hereinafter referred to as "EV mode") in response to the driving conditions. In the EV mode, the engine 10 is stopped. Furthermore, while running using the power of the engine 10, the vehicle controller 21 performs idling stop control to stop idling of the engine 10 in response to the driving conditions, such as a temporary stop, during running using the power of the engine 10.

[0019] The vehicle controller 21 executes the transition to the EV mode in which the engine 10 is stopped and the execution of the idling stop control by determining whether the conditions are satisfied. The conditions include a condition based on the second state quantity managed by the state sensor device 23. For example, when determining whether to transition to the EV mode, the vehicle controller 21 communicates with the state sensor device 23 and determines whether the storage battery 20 has the second state quantity that allows the engine 10 to be restarted. If the second state quantity is not satisfied, the vehicle controller 21 does not execute the transition to the EV mode even if other conditions are satisfied. On the other hand, if the storage battery 20 has the second state quantity and the other conditions are satisfied, the vehicle controller 21 transitions to the EV mode. The vehicle controller 21 also performs a similar determination as to whether to execute the idling stop control. By performing such a determination process, it is possible to prevent the engine 10 from being unable to be restarted due to insufficient capacity of the storage battery 20 when restarting the engine 10 after transitioning to the EV mode. Similarly, when restarting the engine 10 after the idling stop control, it is possible to prevent the engine 10 from being unable to be restarted due to insufficient capacity of the storage battery 20.

[0020] <Identifying the type of storage battery> At the manufacturing stage of the vehicle 100, the type of the storage battery 20 is selected in advance, and the storage battery 20 of that type is installed in the vehicle 100. A lineup of multiple types of the storage battery 20 may be prepared at the manufacturing stage of an initial lot of the vehicle 100. Furthermore, at the manufacturing stage of a different lot, a different type of storage battery 20 may be added to the lineup. Also, when the storage battery 20 is replaced at a dealer's factory, it may be replaced with a storage battery 20 of a different type from the previous one from the multiple lineups.

[0021] Identification information indicating the type of the storage battery 20 is registered in advance in the vehicle controller 21 in correspondence with the lineup of the storage battery 20. Then, at the stage at which the storage battery 20 is mounted in the vehicle 100, that is, at the manufacturing stage or when the storage battery is replaced at a dealer's factory, an operator sets in the vehicle controller 21 which of the multiple lineups of storage battery 20 is mounted. With this setting, the vehicle controller 21 transmits the identification information indicating the type of the storage battery 20 to the controller 232 of the status sensor device 23 via communication when the system of the vehicle 100 is started up.

[0022] 3 is a diagram showing first map data stored in the controller. The first map data M1 shows a correspondence relationship between identification information (e.g., an identification number) indicating the type of the storage battery 20 and characteristic parameters according to the type of the storage battery 20. The characteristic parameters are parameters used when calculating the second state quantity.

[0023] For example, the controller 232 of the state sensor device 23 calculates the SOC, which is one of the second state quantities, using the characteristic parameters E and F according to the following formula (1). SOC[%]=E × OCV + F (1) Here, the characteristic parameters E and F are coefficients, and have different values ​​depending on the type of the storage battery 20. OCV is the open circuit voltage of the storage battery 20.

[0024] When the controller 232 receives identification information indicating the type of the storage battery from the vehicle controller 21, the controller 232 can obtain the characteristic parameters E and F by comparing the identification information with the first map data M1. The values ​​of the characteristic parameters E and F correspond to the type of the storage battery 20, and the controller 232 can accurately calculate the second state quantity of the storage battery 20 by using the characteristic parameters.

[0025] In the above example, the characteristic parameters E and F for calculating the SOC from the open circuit voltage are shown as the characteristic parameters for calculating the second state quantity. However, the characteristic parameters are not limited to these examples. The characteristic parameters may include various parameters used for calculating the second state quantity.

[0026] <Identifying the type of storage battery without relying on the vehicle controller> In this embodiment, during the manufacturing stage of the vehicle 100 or when replacing the storage battery 20 at a dealer's factory, it is possible to install a type of storage battery 20 in the vehicle 100 whose identification information is not registered in the vehicle controller 21.

[0027] When mounting the storage battery 20, the worker may set the type of storage battery 20 in the vehicle controller 21 to none or to a storage battery 20 that is not in the lineup. With this setting, when the system of the vehicle 100 is started up, the vehicle controller 21 does not transmit identification information indicating the type of storage battery 20 to the status sensor device 23. When the identification information is not provided from the vehicle controller 21 and the controller 232 of the status sensor device 23 does not store the type information of the storage battery when the system is started up, the controller 232 transitions to a learning mode and determines the type information of the storage battery.

[0028] The type information of the storage battery determined by the controller 232 in the learning mode is a characteristic parameter (the above-mentioned characteristic parameters E, F, etc.) according to the type of the storage battery 20. Note that the type information is not limited to the characteristic parameters, and may be identification information representing the type of the storage battery 20. In this case, the controller 232 may obtain the above characteristic parameters using the identification information and the first map data M1. The following describes a case where the type information determined by the controller 232 is a characteristic parameter.

[0029] <Map data for learning> Fig. 4 is a diagram showing learning map data stored in the controller, and Fig. 5 is a diagram showing an example of a change pattern of voltage and current for identifying the type of storage battery.

[0030] The controller 232 of the status sensor device 23 includes learning map data M2. The learning map data M2 is data indicating the correspondence between index values ​​indicating a change pattern of the first status value obtained when discharging or charging the storage battery 20 under specific conditions and characteristic parameters according to the type of the storage battery 20.

[0031] The specific condition is, for example, a condition that the storage battery 20 continues to output a predetermined current from a fully charged state. The fully charged state is a state in which the voltage of the storage battery 20 is at the fully charged voltage. As the predetermined current, for example, a current obtained by summing the operating current of the control system and the current for driving a heater, a fan, or the like can be used. As an index value indicating the above change pattern, a time required for the voltage to reach a predetermined voltage by discharging a predetermined current, or a voltage value when discharging a predetermined current for a predetermined time can be used. As the index value, any value that can represent a change pattern may be used.

[0032] The graph in Fig. 5 shows the voltage change patterns when three types of storage batteries 20 are discharged under the above-mentioned specific conditions. As shown in the graph, even when discharging under the same conditions, the times t1, t2, and t3 until the voltage reaches the designated voltage VX differ depending on the type of storage battery 20. Similarly, even when discharging under the same conditions, the voltages V1, V2, and V3 at the timing when the designated time tX has elapsed from the start of discharging differ depending on the type of storage battery 20. Therefore, by comparing these index values, the type of storage battery 20 can be identified.

[0033] The learning map data M2 can be created by determining the above relationship for each of the multiple types of storage batteries 20 in the lineup through testing or simulation. The above relationship is the relationship between the index value and the characteristic parameter when discharging or charging is performed under the above specific conditions for each type of storage battery 20. The learning map data M2 created in this manner is provided to the controller 232 in advance.

[0034] <Learning mode> In the learning mode, the controller 232 of the status sensor device 23 measures an index value when charging / discharging the storage battery 20 under the specific condition. For example, if the specific condition is discharging a predetermined current from a fully charged state, the following can be done. That is, in the manufacturing stage or when replacing the storage battery 20 at a dealer's factory, a worker installs the storage battery 20 in a fully charged state, and operates the vehicle 100 for a certain period of time (for example, about 10 to 20 minutes) so that a predetermined current is discharged. With such a specification, when the system is started after the storage battery 20 is installed, discharging is performed from the storage battery 20 under the specific condition. The controller 232 of the status sensor device 23 detects the current and voltage of the storage battery 20, confirms whether discharging is performed under the specific condition, and obtains the index value.

[0035] Then, after the index value is acquired, the controller 232 compares it with the learning map data M2 to acquire characteristic parameters (i.e., type information) corresponding to the type of the storage battery 20. Then, the controller 232 stores the type information and ends the learning mode. After the learning mode ends, the controller 232 can accurately calculate the second state quantity using the characteristic parameters corresponding to the type of the storage battery 20.

[0036] Once the learning mode has been executed, the controller 232 can calculate the second state quantity using the stored characteristic parameters. Therefore, even if the system of the vehicle 100 is subsequently shut down and restarted, the learning mode will not be executed again. On the other hand, if it is desired to execute the learning mode again, or if the storage battery 20 is changed to a different type again, a process of clearing the type information stored in the controller 232 is performed at the dealer's factory. This process allows the controller 232 to transition to the learning mode the next time it is started up.

[0037] <Variations in how to distinguish the type of battery> The method of determining the type information of the storage battery 20 in the learning mode is not limited to the above example. When the storage battery 20 is charged or discharged under various specific conditions, it reveals a change pattern of the first state quantity (voltage, current, temperature, etc.) according to the type. Therefore, various specific conditions can be defined, and learning map data M2 can be created that indicates a correspondence between an index value that indicates a change pattern of the first state quantity under each defined condition and the type information of the storage battery 20. The controller 232 can obtain the type information of the storage battery 20 by measuring the index value when charging or discharging is performed under the above specific conditions and comparing it with the learning map data M2.

[0038] Specifically, in consideration of the occurrence of fluctuations in current, the controller 232 may determine the type information from an integrated value of the output current of the storage battery 20 over a first hour (such as a specific time within a range of 10 to 15 minutes) from the fully charged state and an amount of voltage drop. Alternatively, the controller 232 may cause the storage battery 20 to discharge from the fully charged state and determine the type information from an integrated value of the output current when the amount of voltage drop reaches a specific value. In addition, the controller 232 may adopt various charge / discharge conditions, such as adopting a condition that a specific load (heater, fan, etc.) is pulse-driven as a specific charge / discharge condition. In addition, the controller 232 may determine the type information by adopting various index values, such as adopting a current value during pulse driving as an index value indicating a change pattern. Also, the controller 232 may calculate a plurality of different index values ​​and determine the type information based on the plurality of index values. Furthermore, the specific condition for performing charge / discharge may include a temperature condition, such as after being left for a specific time at a standard temperature of 15°C to 25°C. Furthermore, the controller 232 may use an index value indicating a temperature change pattern when determining the type information of the storage battery.

[0039] In the above example, in the learning mode, an operator at a manufacturing plant or a dealer's plant controls the operation of the vehicle 100 so that the storage battery 20 is charged or discharged under specific conditions. However, the learning mode may be performed when a user drives the vehicle 100. In this case, the controller 232 of the status sensor device 23 may continue to monitor the first status quantity of the storage battery 20 until the storage battery 20 is charged or discharged under the specific conditions. Then, when the storage battery 20 is charged or discharged under the specific conditions, the controller 232 may acquire an index value and compare it with the learning map data M2 to determine the type information of the storage battery 20.

[0040] In addition, when the user executes the process of the learning mode while driving the vehicle 100, the controller 232 of the state sensor device 23 may notify the vehicle controller 21 of information that the learning mode is incomplete. Based on the notification, the vehicle controller 21 may change the conditions for determining whether to transition to the EV mode and whether to execute the idling stop control to conditions in which the margin of the second state amount (e.g., SOC) is large. That is, if the learning mode has been completed, transition may be possible when the second state amount (e.g., SOC) is equal to or greater than the first threshold, whereas if the learning mode has not been completed, transition may be possible when the second state amount (e.g., SOC) is equal to or greater than the second threshold. Here, the second threshold is a value greater than the first threshold. When the type information is indefinite, there is a possibility that the error included in the second state amount (e.g., SOC) estimated by the state sensor device 23 may be large. However, according to the above control, the vehicle controller 21 can transition to the EV mode or the idling stop control with a margin of the second state amount (e.g., SOC). Therefore, it is possible to reduce the difficulty in restarting the engine 10 thereafter.

[0041] <Control processing> Next, a description will be given of an example of a control process executed by the controller 232 of the status sensor device 23. Fig. 6 is a flowchart showing the control process.

[0042] The control process is started by the controller 232 when the system of the vehicle 100 is started. When the control process is started, the controller 232 first performs an initialization process to set initial values ​​to control variables (step S1). Note that, when type information of the storage battery 20 is stored in the memory unit 232a of the controller 232, the type information is not erased even when the power of the controller 232 is turned off, and is not erased by the initialization process of step S1.

[0043] Next, the controller 232 performs a receiving process to determine whether identification information of the storage battery 20 is sent from the vehicle controller 21 (step S2). If the identification information is sent, the controller 232 compares the identification information with the first map data M1 and acquires characteristic parameters corresponding to the identification information. The controller 232 then sets the characteristic parameters as characteristic parameters for calculating the second state quantity (step S3). Thereafter, the controller 232 repeats a process of monitoring the first state quantity and the second state quantity of the storage battery 20 (step S4) and a process of communicating with the vehicle controller 21 (step S5).

[0044] On the other hand, if the identification information is not received in step S2, the controller 232 determines whether the learning mode has been completed (step S6). Here, the controller 232 may perform the determination in step S6 based on whether type information is stored in the storage unit 232a. As a result, if the learning mode has been completed, the controller 232 acquires characteristic parameters from the type information in the storage unit 232a and sets them as characteristic parameters for calculating the second state quantity (step S7). Then, the controller 232 shifts the process to the loop process of steps S4 and S5.

[0045] On the other hand, if the determination result in step S6 is incomplete, the controller 232 switches the operation mode to the learning mode (step S8). That is, the process of the learning mode is executed. In the learning mode, the controller 232 first monitors whether charging / discharging has been performed under specific conditions based on the value of the sensor 231. Then, when charging / discharging has been performed under the specific conditions, the controller 232 obtains the index value at that time and compares it with the learning map data M2. Then, through this comparison, the controller 232 obtains type information (specifically, characteristic parameters) of the storage battery 20.

[0046] When the learning mode process is completed, the controller 232 stores the type information in the storage unit 232a (step S9), and sets the type information as a characteristic parameter for calculating the second state quantity (step S10). Then, the controller 232 shifts the process to the loop process of steps S4 and S5.

[0047] The above-described control process realizes the operation of the state sensor device 23 after the storage battery 20 is mounted at a manufacturing factory or after the storage battery 20 is replaced at a dealer's factory.

[0048] The above-mentioned control processing program is stored in a non-transient storage medium (non-transient computer readable medium) such as the storage unit 232a of the controller 232. The controller 232 may be configured to read the program stored in a portable non-transient storage medium and execute the program. The above-mentioned portable non-transient storage medium may store the above-mentioned control processing program.

[0049] As described above, according to the state sensor device 23 of the storage battery 20 of this embodiment, even if identification information indicating the type of the storage battery 20 is not received from the vehicle controller 21, the controller 232 of the state sensor device 23 is configured to be able to determine the type information of the storage battery 20. Therefore, even if the lineup of the storage battery 20 is increased, it is possible to reduce the complication of having to rewrite the data of the vehicle controller 21. Furthermore, it is possible to reduce the complication of having vehicle controllers 21 compatible with the new lineup and vehicle controllers 21 that are not compatible with the new lineup coexisting in the inventory of the vehicle controller 21.

[0050] Furthermore, according to the state sensor device 23 of the storage battery 20 of this embodiment, the controller 232 determines type information of the storage battery 20 based on the output of the sensor 231. That is, the controller 232 can determine the type information of the storage battery 20 by using a configuration originally provided in the state sensor device 23, and it is possible to reduce new components that need to be added for the determination.

[0051] Furthermore, according to the state sensor device 23 of the storage battery 20 of this embodiment, the controller 232 has learning map data M2 indicating the correspondence between the type information and an index value indicating a change pattern of the first state quantity (specifically, voltage) when the storage battery 20 is discharged under a specific condition. Therefore, the controller 232 can easily determine the type information by using the learning map data M2.

[0052] Furthermore, according to the state sensor device 23 of the storage battery 20 of this embodiment, the controller 232 acquires type information of the storage battery 20 based on a voltage change pattern accompanying discharging from full charge. The condition of discharging from full charge can be easily satisfied at the manufacturing stage of the vehicle 100 or when replacing the storage battery 20 at a dealer's factory. Furthermore, according to the condition of discharging from full charge, the storage battery 20 will show a voltage change pattern according to its type, and the controller 232 can accurately determine the type of the storage battery 20.

[0053] Furthermore, according to the status sensor device 23 of the storage battery 20 of this embodiment, the controller 232 has a memory unit 232a that stores type information, and switches the operation mode to the learning mode when type information is not stored in the memory unit 232a. Therefore, the controller 232 of the status sensor device 23 is prevented from repeatedly executing the learning mode process on the same storage battery 20, and the efficiency of the controller 232 can be improved.

[0054] The above describes an embodiment of the present invention. However, the present invention is not limited to the above embodiment. For example, in the above embodiment, when identification information of the storage battery 20 is registered in the vehicle controller 21, the vehicle controller 21 notifies the controller 232 of the status sensor device 23 of the identification information. However, the process of notifying the controller 232 of the identification information from the vehicle controller 21 may be omitted altogether. Furthermore, regardless of the type of storage battery 20 mounted, the controller 232 of the status sensor device 23 may be configured to determine the type information of the storage battery 20.

[0055] In the above embodiment, the vehicle 100 is an HEV (Hybrid Electric Vehicle), but the vehicle may be an engine vehicle or an EV (Electric Vehicle). Other details shown in the embodiment may be modified as appropriate without departing from the spirit of the invention. [Explanation of symbols]

[0056] 2 Drive wheels 10 Engine 12. Drive motor 14 High Voltage Battery 16 Inverter 18 Starting motor 19 Restart motor 20. Storage Battery 21 Vehicle Controller 23 Status Sensor Device 231 Sensors 232 Controller 232a Storage section 233 Communications Department M1 1st map data M2 Learning map data 100 vehicles

Claims

1. A storage battery state sensor device mounted on a vehicle including an auxiliary device, a storage battery that supplies power to the auxiliary device, and a vehicle controller that controls driving, A sensor that measures a first state quantity including a current and a voltage of the storage battery; a controller that calculates a second state quantity related to a capacity of the storage battery based on an output of the sensor and type information according to the type of the storage battery, and communicates with the vehicle controller; Equipped with A storage battery status sensor device, characterized in that the controller is configured to be able to determine the type information even when information indicating the type of the storage battery is not received from the vehicle controller.

2. 2. The storage battery state sensor device according to claim 1, wherein the controller determines the type information based on an output from the sensor.

3. the type information includes a characteristic parameter for calculating the second state quantity, 3. The storage battery state sensor device according to claim 2, wherein the controller has map data indicating a correspondence between an index value indicating a change pattern of the first state quantity and the type information.

4. 2. The storage battery state sensor device according to claim 1, wherein the controller determines the type information based on a change pattern of voltage accompanying discharging from a full charge state in the storage battery.

5. The operation modes of the controller include a learning mode in which the type information is determined and stored; 2. The storage battery state sensor device according to claim 1, wherein the controller switches the operation mode to a learning mode when the type information is not stored.

Images