JP2023137817A - Management device and information processing method - Google Patents

Abstract

To prevent batteries from running out while suppressing a main battery of a vehicle from being exhausted by asking a user whether supplementary charging is possible from the main battery to a sub battery, and then performing supplementary charging.SOLUTION: A management device manages the remaining power of a sub-battery of a vehicle that includes a main battery and the sub-battery. The management device acquires remaining power information of the sub-battery at the time when the vehicle starts parking. The management device predicts a remaining power drop timing at which the remaining power of the sub-battery falls below a threshold while the vehicle is parked, based on the acquired remaining power information. The management device transmits, to a user terminal, an inquiry as to whether to perform supplementary charging of the sub-battery using power of the main battery at a timing earlier than the predicted remaining power drop timing.SELECTED DRAWING: Figure 4

Description

The present invention relates to a management device and an information processing method.

In recent years, in order to ensure that more people have access to affordable, reliable, sustainable, and advanced energy, secondary batteries that contribute to energy efficiency, and vehicles equipped with secondary batteries, have been introduced. Research and development regarding charging and power supply is being carried out.

Patent Document 1 discloses that for a vehicle whose power is turned off, such as when the vehicle is parked, an instruction to charge the auxiliary battery is given based on the stored state of the auxiliary battery without constantly monitoring the vehicle state. The technology has been disclosed. In addition, Patent Document 2 discloses that in order to be able to grasp the charging status and control the charging current to electric vehicles even when out and about, the main electrical circuit from the smart meter is branched to connect the electric vehicle charging device and residential distribution board. A technology has been disclosed for notifying the charging status of a mobile terminal by communicating with the mobile terminal.

JP 2021-83157 Publication Japanese Patent Application Publication No. 2018-182853

By the way, in the technology related to charging and supplying secondary batteries and vehicles equipped with secondary batteries, supplementary charging of the sub-battery is performed using power from the main battery, but supplementary charging is required frequently to prevent the battery from dying. If this is done, the problem is that the power of the main battery will be consumed and the driving distance (AER) will decrease.

In order to solve the above-mentioned problems, this application aims to suppress battery depletion while suppressing the consumption of the vehicle's main battery by asking the user whether supplementary charging is possible from the main battery to the sub-battery and then performing supplementary charging. This is the purpose. This in turn contributes to energy efficiency.

According to the invention,
A management device that manages the remaining amount of the sub-battery of a vehicle having a main battery and a sub-battery,
Remaining amount information acquisition means for acquiring remaining amount information of the sub-battery at the time when the vehicle starts parking;
Prediction means for predicting a timing at which the remaining capacity of the sub-battery decreases below a threshold while the vehicle is parked, based on the remaining capacity information;
Transmitting means for transmitting, to a user terminal, an inquiry as to whether or not to perform supplementary charging of the sub-battery using the power of the main battery at a timing before the remaining power reduction timing predicted by the prediction means;
Provided is a management device comprising:

According to the present invention, by performing supplementary charging after inquiring the user as to whether supplementary charging from the main battery to the sub-battery is possible, it is possible to suppress battery depletion while suppressing consumption of the vehicle's main battery. .

FIG. 1 is a diagram illustrating an example of a sub-battery remaining amount management system according to an embodiment of the present invention. FIG. 2 is a block diagram showing an example of the hardware configuration of a server that is a management device. FIG. 1 is a block diagram showing an example of a hardware configuration of a vehicle. FIG. 3 is a diagram illustrating an example of a GUI displayed on a terminal according to an embodiment. 5 is a flowchart illustrating an example of processing by a management device according to an embodiment.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. Note that the following embodiments do not limit the claimed invention, and not all combinations of features described in the embodiments are essential to the invention. Two or more features among the plurality of features described in the embodiments may be arbitrarily combined. In addition, the same or similar configurations are given the same reference numerals, and duplicate explanations will be omitted.

A management device according to an embodiment of the present invention manages the remaining amount of a sub-battery of a vehicle that includes a main battery and a sub-battery. In particular, the management device according to the present embodiment acquires the remaining amount information of the sub-battery at the time when the vehicle starts parking, and based on the obtained remaining amount information, the remaining amount of the sub-battery decreases below a threshold value while the vehicle is parked. Predict the timing when the remaining amount will decrease. Next, the management device transmits, to the user terminal, an inquiry as to whether or not to perform supplementary charging of the sub-battery using the power of the main battery at a timing before the predicted timing of the remaining power drop. In this embodiment, the management device is a server that acquires various information from the vehicle and predicts the timing when the remaining battery level will decrease; however, this is just an example, and the configuration is not limited to this. do not have.

[system]
Hereinafter, with reference to FIG. 1, a system including a management device according to this embodiment will be described. FIG. 1 shows a management system that is managed by a management device (server) 100 according to this embodiment and sets the timing for supplementary charging of a vehicle 110. The management device according to this embodiment is a server 100, which is communicably connected to a vehicle 110 via a network 120. Further, in this embodiment, the server 100 connects to a terminal 130 (user terminal) owned by a user 135 of the vehicle 110 via the network 120, and sends an inquiry to the terminal 130 as to whether or not to perform supplementary charging of the sub-battery. Send.

FIG. 2 is a block diagram showing an example of the hardware configuration of the server 100 according to this embodiment. The server 100 includes a processing section 201, a storage section 202, and a communication section 203. The processing unit 201 is a processor represented by a CPU, and executes a program stored in the storage unit 202. The storage unit 202 is a storage device such as a RAM, ROM, or hard disk. Communication unit 203 includes a wired or wireless communication interface that can communicate with vehicle 110 or terminal 130 via a communication network.

The storage unit 202 stores various data in addition to programs executed by the processing unit 201. The program may be installed on the server 100 from a storage medium such as a CD-ROM. In the example of FIG. 2, a database (DB) 221 is illustrated as data stored in the storage unit 202. The DB 221 is a DB in which information about the vehicle 110 is registered, and the DB 221 may be called a vehicle DB. The vehicle 110 and the terminal 130 owned by the user 135 of the vehicle 110 are registered in the DB 221 in association with each other. In this embodiment, an inquiry as to whether or not to perform sub-battery charging for the vehicle 110 is transmitted to the terminal 130 associated with the vehicle 110. Here, the number of terminals 130 associated with vehicle 110 is not particularly limited, and one terminal 130 may be associated with a plurality of vehicles 110. The DB 221 can store various information regarding the vehicle, such as information regarding the sub-battery 313 of the vehicle 110.

FIG. 3 is a block diagram showing an example of the hardware configuration of the server 100 according to this embodiment. The vehicle 110 according to the present embodiment is a vehicle that is driven by an electric motor 315 and includes a main battery 311 and a sub-battery 313 that are secondary batteries. The vehicle 110 according to the present embodiment includes a main battery 311, a converter 312, a sub-battery 313, a control section 314, a motor 315, an ECU 316, and a communication section 317 as onboard devices.

The main battery 311 is a power source for driving the motor 315 of the vehicle, and in this embodiment, the sub-battery 313 is supplementally charged using the power of the main battery 311. The voltage of the main battery 311 may be, for example, 150V or more, 200V or more, 250V or more, or 280V or more. Further, the voltage of the main battery may be 450V or less, 400V or less, or 300V or less.

The sub-battery 313 is a battery that functions as a power source for an electrical system including an ECU (Electronic Control Unit) including a PCU (Power Control Module) or auxiliary equipment such as audio. The sub-battery 313 according to this embodiment is a battery with a lower voltage output than the main battery 311, and its voltage is, for example, 12V. However, the voltage of the sub-battery 313 can be any voltage depending on the controlling ECU, and may be, for example, 100V, or may be about the same voltage as the main battery. By using a sub-battery with an output of 12V, it becomes possible to employ a conventional ECU that is driven by a 12V battery. The vehicle 110 equipped with such a sub-battery 313 may be, for example, an electric vehicle or a hybrid vehicle additionally equipped with an engine. In this embodiment, the description will be given assuming that the vehicle 110 is an electric vehicle (BEV, Battery Electric Vehicle) whose motor is driven by a battery.

The sub-battery 313 according to this embodiment supplies power to the electrical system of the vehicle 110 as described above. The sub-battery 313 supplies power to the control unit 314, which is the control system of the vehicle 110, so if the remaining charge of the sub-battery 313 drops too much, the control system will stop and instructions will no longer be sent to the various electrical systems ( (Hereinafter, this phenomenon will be referred to as "depleted battery.") Battery exhaustion can be prevented by supplementary charging of the sub-battery 313 using power from the main battery 311, but if supplementary charging is performed more frequently than necessary, the power of the main battery 311 will be consumed and the mileage (AER) will decrease. Resulting in. In this embodiment, by performing supplementary charging of the sub-battery 313 using the power of the main battery 311 at the supplementary charging timing set by the server 100, depletion of the main battery is suppressed and battery depletion is suppressed. Converter 312 is, for example, a DC/DC converter, and reduces the current stored in main battery 311 to a predetermined voltage and supplies it to various on-vehicle devices including sub-battery 313.

In the present embodiment, the communication unit 317 transmits to the server 100 information on the remaining amount of the sub-battery at the time when the vehicle starts parking. Here, the start of parking of the vehicle is defined as the timing when the ignition of the vehicle 110 is turned off, but it may also be the timing when an operation is performed to keep the vehicle stationary, such as when the parking brake is used. There are no particular limitations. The communication unit 317 transmits the remaining amount information of the sub-battery as an SOC (State of Charge) value. The remaining amount information may also be expressed with reference to voltage and temperature, for example. Hereinafter, when it is simply expressed as "remaining amount information", it refers to the remaining amount information of the sub-battery 313.

The control unit 314 is, for example, a PCU, and receives power from the sub-battery 313 to control the electrical system of the vehicle. The control unit 314 according to the present embodiment may control supplementary charging of the sub-battery, may control the motor 315, and may control the ECU 316. Alternatively, the control unit 314 may be implemented as an ECU dedicated to supplementary charging of the sub-battery, and the ECU 316 may control other vehicles. In this embodiment, the control unit 314 controls supplementary charging of the sub-battery at a timing according to an instruction from the server 100.

The ECU 316 is a variety of electrical systems installed in the vehicle 110, such as an audio system or an air conditioner. The communication unit 317 transmits and receives data to and from the server 100 via the network 120.

In the management system illustrated in FIG. 1, the server 100 predicts the timing at which the battery of the vehicle 110 will run out, based on the remaining amount information of the sub-battery 313 at the time when the vehicle 110 starts parking. The server 100 sets a threshold value for the remaining amount of the sub-battery 313, and estimates the timing at which the remaining amount is predicted to fall below the threshold value as the timing at which the battery runs out (remaining amount drop timing). The processing performed by the server 100 will be described below as being performed by the processing unit 201 shown in FIG. 2.

The threshold value used to determine whether or not the battery will run out can be set according to the user's desired conditions, but it is assumed that it is set in the range of 10% to 30% using SOC, for example. Further, the threshold value of the remaining amount information may be set based on the predicted temperature information, taking into consideration the charging efficiency depending on the temperature of the battery. The predicted temperature information here may be temperature forecast information, the outside temperature of the vehicle at the time of parking, or the battery temperature after a sufficient period of time has passed since parking. good. The server 100 can set the threshold value of the remaining amount information high, assuming that the lower the expected temperature information, the worse the charging efficiency becomes.

The server 100 can calculate the above-mentioned remaining power reduction timing based on the remaining power information of the sub-battery 313 and the power consumption amount (discharge amount) due to the dark current of the sub-battery 313. The amount of discharge due to dark current of the sub-battery 313 during standby may be set in advance based on the type of the vehicle 110, for example, and calculated based on various electrical components such as a car navigation device or a drive recorder included in the vehicle 110. or may be obtained from past consumption records. For example, by periodically acquiring the remaining amount information from the vehicle 110, the server 100 can calculate the consumption amount such that the remaining amount information decreases by 1% in SOC per day. This amount of discharge may be statistically calculated from the amount of discharge during parking during a predetermined period (for example, one month).

The server 100 sets a supplementary charging timing for supplementary charging of the sub-battery 313 using the power of the main battery 311 prior to the timing for reducing the remaining power. For example, the server 100 may set supplementary charging timing based on the remaining amount information, and in addition to the remaining amount information, the server 100 may also set supplementary charging timing based on information on elements related to the battery charging speed, such as temperature information or battery deterioration information. The charging timing may also be set. The server 100 according to the present embodiment may set supplementary charging timing based on the temperature forecast, for example, so that supplementary charging is performed with priority to timing when the temperature is high. Since it is considered that charging can be performed with sufficient efficiency when the temperature is 0°C or higher, the server 100 may set the supplementary charging timing at the timing when the temperature becomes 0°C or higher. The supplementary charging timing may be set based on a desired temperature. Additionally, the server 100 starts supplementary charging on a day when charging can be performed efficiently, such as during the day of the day when the temperature is the highest (maximum or average) within a predetermined period (for example, one week) during which temperature information is acquired. The supplementary charging timing may be set so that On the other hand, charging may be adversely affected if the temperature becomes extremely high, such as when the temperature in the engine room exceeds 60°C, so if the temperature remains at 35°C for a specified period of time (for example, 6 hours). Supplementary charging timing may not be set at a timing when a predetermined high temperature condition is predicted to be met, such as not performing supplementary charging on days when the temperature is predicted to exceed the predetermined high temperature condition.

For this purpose, the server 100 can obtain a temperature forecast for the parking area after the vehicle 110 starts parking. In this embodiment, the server 100 is communicably connected to a weather forecast server (not shown) that performs weather forecasts, and receives weather forecast information including temperature forecasts for a predetermined period for each region from the weather forecast server. shall be obtained. However, if the temperature forecast in the parking area of the vehicle 110 can be obtained, there is no need to use the weather forecast server; for example, the server 100 may predict the temperature, or the temperature stored in the vehicle 110 may be Forecast information may be obtained. Here, the minimum temperature for each day (or for a predetermined period) is used as the temperature forecast, but the average temperature, maximum temperature, etc. may be used depending on the purpose.

The server 100 transmits to the terminal 130 an inquiry as to whether to perform supplementary charging (confirmation of supplementary charging). The terminal 130 that has received the supplementary charging execution confirmation displays a display for confirming whether the user 135 has an intention to carry out supplementary charging, and obtains a user input as to whether or not to carry out supplementary charging.

FIG. 4 is a diagram illustrating an example of a GUI of a user notification screen displayed by the terminal 130 that has received the supplementary charging implementation confirmation in this embodiment. A message 402, a message 403, and a confirmation button 404 are displayed on the display screen 401 of the terminal 130. The message 402 is a display that informs the user of the date when the battery will run out (remaining power reduction timing). In the example of FIG. 4, the message 402 displays that the vehicle may not be able to start due to the battery running out in 10 days. has been done. Furthermore, a message 403 is a display that informs the user of the mileage that changes when supplementary charging is performed, and in the example of FIG. 4, it is displayed that the mileage will change from 300 km to 280 km before and after supplementary charging. In this way, the server 100 may transmit information regarding supplementary charging together with confirmation of supplementary charging implementation. Terminal 130 obtains user input through confirmation button 404 and transmits the selection result to server 100. Note that the display in FIG. 4 is an example; for example, only the confirmation button 404 is displayed on the notification bar displayed by a swipe operation on the touch panel, allowing input, and tapping the corresponding location on the notification bar displays the screen shown in FIG. 4. The entire information may be displayed.

Here, if it is determined that there is an intention to perform supplementary charging according to the selection result of user 135, server 100 transmits an instruction to start supplementary charging at that supplementary charging timing to vehicle 110. I can do it. Here, server 100 may transmit a start instruction at the complementary charging timing to cause vehicle 110 to start supplementary charging, or transmit information indicating the complementary charging timing to vehicle 110, and control unit 314 may Supplementary charging may be started at the supplementary charging timing.

Note that the server 100 can set the timing of transmitting the supplementary charging implementation confirmation to the terminal 130 based on the timing of the decrease in the remaining amount. For example, the server 100 may send the supplementary charging implementation confirmation at the same time as the timing when the remaining battery level decreases, or may send it a predetermined period of time (for example, 10 days as shown in message 402 in FIG. 4) before the user Any settings may be made as long as the timing allows confirmation.

Furthermore, server 100 does not cause vehicle 110 to perform supplementary charging if there is no input from the user regarding confirmation of supplementary charging. However, supplementary charging may be performed even when input from the user cannot be confirmed.

In this embodiment, the user is notified by the screen display as shown in FIG. 4 upon confirming the implementation of supplementary charging, but if the user is to be notified, it is limited to this mode. Not allowed. For example, the server 100 may send a voice inquiry to the terminal 130, or may control the terminal 130 to simultaneously perform a vibration or lighting process. By giving a notification using an automated voice over the telephone, the user can confirm the notification more reliably.

FIG. 5 is a flowchart illustrating an example of a process for managing the remaining amount of the sub-battery 313 performed by the processing unit 201 of the server 100 according to the present embodiment. In this embodiment, when the vehicle 110 is parked and the ignition is turned off, the process shown in FIG. The processing according to FIG. 5 is realized, for example, by the CPU of the processing unit 201 reading a program held in the ROM or the storage unit 202 into the RAM and executing it.

In S501, the server 100 acquires various information including sub-battery remaining amount information from the vehicle 110. Here, the server 100 acquires the remaining amount information as the SOC. In S502, the server 100 predicts the timing at which the sub-battery 313 will be charged based on the remaining capacity information acquired in S501. The server 100 according to the present embodiment predicts the timing at which the sub-battery 313 will go up using the information stored in the DB 221 that indicates the amount of discharge due to the dark current of the vehicle 110. Information indicating the amount of discharge due to the dark current of the vehicle 110 may be acquired from the vehicle 110.

In S503, the server 100 obtains the weather forecast. The server 100 according to this embodiment acquires the weather forecast corresponding to the parking area of the vehicle 110 from the weather forecast server, and refers to the temperature forecast included in the weather forecast. Here, the server 100 may acquire the location information where the vehicle 110 is parked in S501 as the parking area, or may set the area corresponding to the vehicle 110 stored in the DB 221 as the parking area.

In S504, the server 100 sets the supplementary charging timing for supplementary charging of the sub-battery 313 based on the temperature forecast acquired in S503. For example, the server 100 determines that the start timing for supplementary charging is during the day (for example, 12:00 noon) of the day with the highest minimum temperature within the predetermined period of the acquired temperature forecast (here, one week). . Further, for example, the server 100 calculates the start timing of supplementary charging such that supplementary charging is completed at the date and time when the battery is exhausted based on the temperature forecast, and the lowest temperature before the calculated timing is the start timing of supplementary charging. The supplementary charging may be started during the day on the day when the threshold value satisfying the condition is exceeded.

In S505, the server 100 sends an inquiry to the user terminal as to whether to perform supplementary charging. Here, the server 100 transmits a supplementary charging implementation confirmation to the terminal 130 associated with the vehicle from which the remaining amount has been acquired. In S506, the server 100 obtains information indicating whether supplementary charging of the sub-battery is to be performed, which is input by the user into the terminal 130 and is a response to the inquiry sent in S505.

In S507, the server 100 determines whether to perform supplementary charging based on the information acquired in S506. If the input to perform supplementary charging is obtained in S506, the process advances to S508, and if not, the process ends. In S508, server 100 instructs vehicle 110 to start supplementary charging. As described above, server 100 may transmit a start instruction to vehicle 110 at the start timing of supplementary charging, or may transmit an instruction including information indicating the start timing to vehicle 110 before the start timing. good.

According to such processing, the timing at which the battery will run out is predicted according to the remaining capacity of the sub-battery, and before that timing, the user is asked whether it is possible to supplementally charge the sub-battery from the main battery, and then the supplementary charge is performed. By performing charging, it is possible to suppress the main battery of the vehicle from being exhausted and from running out of battery power.

Note that although the processing shown in FIG. 4 according to the present embodiment has been described as being performed by the server 100, part or all of this processing may be performed by the vehicle 110. That is, the control unit of the vehicle 110 can acquire each piece of information, set the supplementary charging timing, and perform supplementary charging control. Further, instead of the server 100, an information communication terminal or the like held by the administrator may perform similar processing. In this case, a CPU (not shown) incorporated in the information communication terminal executes the selection process by loading a selection process program recorded in a storage device such as an HDD into a RAM or the like. Here, the selection processing program executed by the CPU may be installed in the storage device of the information communication terminal via a storage medium such as a CD-ROM.

Note that each process according to the present embodiment is performed when the vehicle 110 stops in a parking lot (that is, in a parking position where charging is not possible or when charging is forgotten), and the amount of charge of the battery decreases due to dark current. It is assumed that it will be carried out in the state. Although the present embodiment has been described on the assumption that supplementary charging of the sub-battery 313 is performed during such a stop, it is also conceivable that supplementary charging is performed, for example, while the vehicle is running. In such a case, power is supplied from the main battery 311 to the control unit 314 via the converter 312 while sub-battery 313 is supplementally charged. That is, the main battery may supply part or all of the power from the sub-battery in the above description depending on the situation.

[Summary of embodiments]
The above embodiments disclose at least the following management device and information processing method.

1. The management device (for example, 100) of the above embodiment is
A management device that manages the remaining capacity of a sub-battery of a vehicle (for example, 110) having a main battery (for example, 311) and a sub-battery (for example, 313),
Remaining amount information acquisition means (for example, 201) that acquires remaining amount information of the sub-battery at the time when the vehicle starts parking;
prediction means (for example, 201) that predicts a timing at which the remaining capacity of the sub-battery decreases below a threshold value while the vehicle is parked based on the remaining capacity information;
Transmitting means (e.g., transmitting means (for example , 201) and
Equipped with
According to this embodiment, it is possible to suppress battery depletion while suppressing consumption of the main battery of the vehicle.

2. In the management device of the above embodiment,
Further comprising a setting means for setting a supplementary charging timing for performing the supplementary charging (for example, S504) before the remaining amount reduction timing,
The transmitting means transmits the inquiry to the user terminal at a timing set based on the supplementary charging timing.
According to this embodiment, it is possible to send an inquiry to the user as to whether or not to perform supplementary charging before the set supplementary charging timing.

3. In the management device of the above embodiment,
further comprising a temperature forecast acquisition means for acquiring a temperature forecast for the parking area of the vehicle after the vehicle starts parking (for example, S503);
The setting means sets the supplementary charging timing based on the temperature forecast.
According to this embodiment, it is possible to set supplementary charging timing in consideration of changes in charging efficiency based on temperature.

4. In the management device of the above embodiment,
The setting means sets the supplementary charging timing with priority given to timing when the temperature is high.
According to this embodiment, supplementary charging can be performed at a timing that satisfies temperature conditions suitable for supplementary charging.

5. In the management device of the above embodiment,
The transmitting means transmits information regarding the supplementary charging to the user terminal along with the inquiry.
According to this embodiment, it is possible to have the user confirm information regarding supplementary charging before selecting whether supplementary charging is necessary.

6. In the management device of the above embodiment,
The information regarding the auxiliary charging is information indicating the timing of the reduction in the remaining amount, or the mileage of the vehicle that changes due to implementation of the auxiliary charging.
According to this embodiment, before selecting whether or not supplementary charging is necessary, it is possible for the user to confirm the expected battery depletion or the mileage that will be reduced by supplementary charging.

7. In the management device of the above embodiment,
The main battery is a power source for driving a motor of the vehicle,
The sub-battery is a battery with a lower voltage output than the main battery, and is a power source for electrical components of the vehicle.
According to this embodiment, it becomes possible to appropriately perform supplementary charging of the sub-battery of an electric vehicle.

8. The management device of the above embodiment is
communicably connected to an onboard device (for example, 107) of the vehicle;
An instructing means is provided for transmitting an instruction to start the supplementary charging to the on-vehicle device at a timing before the remaining amount reduction timing predicted by the estimating means (for example, S507).
According to this embodiment, it is possible to issue an instruction for supplementary charging from the management device side while suppressing consumption of the main battery of the vehicle.

9. In the management device of the above embodiment,
The remaining amount information acquisition means obtains the remaining amount information from the on-vehicle device.
According to this embodiment, it becomes possible to predict supplementary charging timing on the management device side based on the acquired remaining amount information.

10. In the management device of the above embodiment,
The management device is an on-vehicle device installed in the vehicle,
The management device includes:
The battery pack includes a control means for operating a charger for supplementary charging of the sub-battery at a timing earlier than the timing for reducing the remaining amount predicted by the prediction means.
According to this embodiment, the timing of supplementary charging can be set using the onboard device of the vehicle.

11. The information processing method of the above embodiment includes:
An information processing method performed by a management device (for example, 100) that manages the remaining amount of the sub-battery of a vehicle having a main battery and a sub-battery,
a remaining amount information obtaining step (for example, S501) of obtaining remaining amount information of the sub-battery at the time when the vehicle starts parking;
a prediction step (for example, S502) of predicting a timing at which the remaining capacity of the sub-battery decreases below a threshold value while the vehicle is parked based on the remaining capacity information;
A transmitting step (for example, transmitting an inquiry to a user terminal as to whether or not to perform supplementary charging of the sub-battery using the power of the main battery at a timing before the remaining power reduction timing predicted in the predicting step) , S505) and
Equipped with
According to this embodiment, it is possible to suppress battery depletion while suppressing consumption of the main battery of the vehicle.

Although the embodiments of the invention have been described above, the invention is not limited to the above embodiments, and various modifications and changes can be made within the scope of the gist of the invention.

201: Processing unit, 202: Storage unit, 203: Communication unit

Claims (11)

A management device that manages the remaining amount of the sub-battery of a vehicle having a main battery and a sub-battery,
Remaining amount information acquisition means for acquiring remaining amount information of the sub-battery at the time when the vehicle starts parking;
Prediction means for predicting a timing at which the remaining capacity of the sub-battery decreases below a threshold while the vehicle is parked, based on the remaining capacity information;
Transmitting means for transmitting, to a user terminal, an inquiry as to whether or not to perform supplementary charging of the sub-battery using the power of the main battery at a timing before the remaining power reduction timing predicted by the prediction means;
A management device comprising: Further comprising a setting means for setting a supplementary charge timing for performing the supplementary charge before the remaining amount reduction timing,
The management device according to claim 1, wherein the transmitting means transmits the inquiry to the user terminal at a timing set based on the supplementary charging timing. Further comprising a temperature forecast acquisition means for acquiring a temperature forecast for the parking area of the vehicle after the vehicle starts parking,
The management device according to claim 2, wherein the setting means sets the supplementary charging timing based on the temperature forecast. 4. The management device according to claim 3, wherein the setting means sets the supplementary charging timing with priority given to a timing when the temperature is high. 5. The management device according to claim 1, wherein the transmitting means transmits information regarding the supplementary charging to the user terminal together with the inquiry. 6. The management device according to claim 5, wherein the information regarding the supplementary charge is information indicating the timing of the reduction in the remaining amount, or a mileage of the vehicle that changes due to implementation of the supplementary charge. The main battery is a power source for driving a motor of the vehicle,
The sub-battery is a battery with a lower voltage output than the main battery, and is a power source for electrical components of the vehicle.
The management device according to any one of claims 1 to 3, characterized in that: The management device is communicably connected to an onboard device of the vehicle,
The management device includes:
comprising an instructing means for transmitting an instruction to start the supplementary charging to the on-vehicle device at a timing before the remaining amount reduction timing predicted by the predicting means;
The management device according to any one of claims 1 to 7, characterized in that: 9. The management device according to claim 8, wherein the remaining amount information acquisition means obtains the remaining amount information from the on-vehicle device. The management device is an on-vehicle device installed in the vehicle,
The management device includes:
comprising a control means for activating a charger for supplementary charging of the sub-battery at a timing earlier than the timing at which the remaining power decreases predicted by the prediction means;
The management device according to any one of claims 1 to 7, characterized in that: An information processing method performed by a management device that manages the remaining amount of the sub-battery of a vehicle having a main battery and a sub-battery, the method comprising:
a remaining amount information obtaining step of obtaining remaining amount information of the sub-battery at the time when the vehicle starts parking;
a prediction step of predicting a timing at which the remaining capacity of the sub-battery decreases below a threshold while the vehicle is parked based on the remaining capacity information;
a transmitting step of transmitting to a user terminal an inquiry as to whether or not to perform supplementary charging of the sub-battery using the power of the main battery at a timing before the remaining power reduction timing predicted in the prediction step;
An information processing method comprising:

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