KR20130001269A - Charge control device - Google Patents

Abstract

A charge control device for controlling the amount of charge when charging a plurality of vehicles each equipped with a storage battery, comprising: a schedule creation unit for creating a schedule for charging the storage batteries of the plurality of vehicles, and a schedule created by the schedule creation unit. Therefore, the charging control apparatus provided with the control part which opens and closes the charging path | route to the said some vehicle, and turns on / off charging of each said vehicle. The schedule preparation unit creates the schedule such that the schedule preparation unit charges up to a charge amount obtained by subtracting a predetermined margin amount from a target charge amount for each vehicle.

Description

Charge control unit {CHARGE CONTROL DEVICE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a charge control device for controlling charging of a storage battery mounted in a vehicle such as an electric vehicle.

Background Art In recent years, vehicles such as electric vehicles and plug-in hybrid vehicles equipped with storage batteries and motors have become widespread. In addition, since a plurality of vehicles are charged at the same time in a collective house or a business establishment, the power consumption combined with other load devices exceeds the specified value, and the daytime breaker of the power distribution board may trip (interrupt electricity). On the other hand, it is not preferable to increase the facility to prevent tripping of the breaker by the overload current, or increase the contract power with the power company as the power used increases.

In contrast, in the conventional example described in Patent Document 1, the power storage state of the power storage device when each vehicle is connected to an external power source is detected, and the estimated power consumption and the start time are detected for each of the plurality of vehicles. Based on the detected power storage state and estimated power consumption amount, the necessary charging power amount is calculated. Based on the required charging amount and departure time, the charging schedule for each vehicle and the charging power amount is determined. Control of charging the power storage device is performed.

That is, according to the conventional example described in Patent Document 1, the charging schedule relating to the charging time and the charging power amount of each vehicle is determined from the required charging amount and departure time of each vehicle, and based on the charging schedule, Charging prevents tripping of the weekly breaker by overload current without increasing contract power with the utility.

However, in the conventional example of Patent Document 1, since the charging schedule for charging a plurality of vehicles one at a time is not a charging schedule for simultaneously charging a plurality of vehicles, the charging amount of the vehicle whose charging order is late is extremely short It may be discarded. Then, the user of each vehicle is dissatisfied with the amount of charge of the vehicle.

Japanese Patent Laid-Open Publication No. 2009-136109

This invention is made | formed in view of the said subject, Comprising: It provides the charge control apparatus which can simultaneously charge a plurality of vehicles, and can suppress a user's dissatisfaction, preventing the increase of contract power, the trip of the breaker, etc. at the same time.

The charge control device of the present invention is a charge control device for controlling the charge amount when charging the storage batteries of a plurality of vehicles each equipped with storage batteries using electric power supplied from a power system to a building. A power measuring unit for measuring electric power supplied to the building, a schedule preparing unit for creating a schedule for charging the storage batteries of the plurality of vehicles, and all of the plurality of vehicles according to the schedule created in the schedule preparing unit; And a control unit for opening and closing a charging path to some of the vehicles to turn on and off the charging of the respective vehicles, wherein the schedule preparation unit determines a difference between the maximum power received from the electric power system and the electric power measured by the electric power measuring unit. It distributes to each said vehicle by time slot, and predetermined | prescribed by the target charge amount for each said vehicle. There is provided a charging control device for creating the schedule for charging up to the charging amount minus the margin amount.

In this charge control device, it is preferable that the schedule preparation unit sets the allowances in all the vehicles to the same value.

In this charge control device, there is provided a remaining amount information acquiring unit for acquiring information on the remaining amount of the storage battery of the vehicle from the vehicle, wherein the schedule preparation unit includes the remaining amount of the storage battery and the target charging amount for each vehicle based on the information. It is preferable to set the margin amount at a constant ratio with respect to the difference between.

In this charge control device, it is preferable that the schedule preparation unit sets the allowable amount at a constant rate with respect to the target charge amount for each vehicle.

The charge control device may further include an operation input accepting section for accepting an operation input of a user using the vehicle, wherein the schedule generating section sets the target charge amount based on an operation input accepted by the operation input accepting section desirable.

In this charge control device, it is preferable that the schedule generation unit sets the charge capacity of the storage battery of each vehicle as the target charge amount for each vehicle.

In this charge control device, it is preferable to include a storage unit for storing the target charge amount for each vehicle, and the schedule generation unit generates the schedule using the target charge amount stored in the storage unit.

In this charge control device, each of the vehicles includes a storage unit for storing the performance of the past charge amount, and the schedule generation unit sets the target charge amount based on the past charge amount stored in the storage unit. It is preferable.

In this charge control apparatus, it is preferable that the charge control apparatus further includes a storage unit that stores the priority assigned to each vehicle, and the schedule generation unit generates the schedule based on the priority stored in the storage unit.

In this charge control device, the storage unit stores a plurality of types of priorities assigned to each vehicle, and the schedule generation unit generates the schedules based on the plurality of types of priorities stored in the storage unit. It is preferable.

In this charge control device, an operation input accepting unit for accepting an operation input of a user who uses the vehicle, a storage unit for storing the performance of past charge amounts for each of the vehicles, and an information presenting unit for presenting information to the user And the schedule generation unit sets the target charge amount based on the operation input received by the operation input acceptor, and estimates a ratio between the charge amount obtained by subtracting the margin amount from the target charge amount and the target charge amount, It is preferable to present the ratio in the information presentation section.

In this charge control device, it is provided with an information presenting unit for presenting information to a user who uses the vehicle, wherein the schedule generating unit presents the information about the schedule to the information presenting unit in response to a request from the user. desirable.

The objects and features of the present invention will become apparent from the following description of the preferred embodiments given in conjunction with the accompanying drawings.
1A is a diagram illustrating a configuration of a charging system including Embodiment 1 of a charging control device according to the present invention.
1B is a block diagram showing Embodiment 1 of a charge control device according to the present invention.
2A and 2B are explanatory views for explaining the relationship between the charging capacity, the target charging amount, the remaining amount, and the remaining amount of the vehicle in the first embodiment.
3A and 3B are explanatory diagrams for explaining the time interval and the maximum power in the first embodiment.
4A and 4B are explanatory diagrams of a usage form for each user according to the first embodiment.
FIG. 5 is a diagram showing an objective function and a constraint condition for determining an amount of allowance when generating a schedule in Embodiment 1. FIG.
FIG. 6 is a diagram showing an objective function and a restriction condition for determining a margin amount at the time of generating a schedule in the first embodiment.
7A, 7B and 7C are explanatory diagrams of schedule generation in the second embodiment.
8A and 8B are explanatory diagrams of schedule generation in the second embodiment.

Embodiments of the present invention will now be described in more detail with reference to the accompanying drawings, which form a part of this specification. The same or similar parts throughout the drawings are given the same reference numerals and redundant description thereof will be omitted.

 (Embodiment 1)

The system structure of the charging system 100 containing the charging control apparatus CT of this embodiment is shown in FIG. 1A. In the description of the present specification, a charging system includes a plurality of vehicles (eg, electric vehicles, plug-in hybrid vehicles, electric motorcycles, etc.) each equipped with a storage battery (not shown) in a building BD such as a collective house or an establishment. It describes as charging for (EV). However, the charging system of the present invention is applicable to, for example, a charging only facility.

In the building BD, a light line to which AC power is supplied from a commercial AC power system AC is branched from the main distribution board MB and the sub-distribution board SB, respectively. Although the illustration is omitted, a box of the main distributor MB houses a weekly breaker and a plurality of branch breakers. A load device (a lighting device, an air conditioner, or the like) in the building BD, Power is supplied. Similarly, the daytime breaker and many branch breakers are accommodated in the box of the sub distribution board SB. The branch breaker of the sub distribution board SB is composed of remote control breakers RBi (i = 1, 2, ..., n) capable of remote control and is connected to a plurality of outlets CSi (i) through a plurality of remote control breakers RBi i = 1, 2, ..., n). And the charging cable Lx used as a power supply path to the vehicle EV is connected to these some outlet CSi freely.

As shown in FIG. 1B, the charging control device CT includes a schedule generation unit 1, a control unit 2, a power measurement unit 3, a storage unit 4, an operation input reception unit 5, and an information presentation unit 6. ). The power measurement unit 3 includes power (power used) consumed by a load device in the building BD through the main distribution board MB, and power charged to the vehicle EV through the sub-distribution board SB (charging power). Measure separately. However, the measurement result of the electric power measuring part 3 is memorize | stored in the memory | storage part 4 via the schedule generation part 1. As shown in FIG.

The storage section 4 is constituted by an electrically rewritable nonvolatile semiconductor memory such as a flash memory and stores various information related to a schedule and a vehicle EV to be described later in addition to the measurement result of the power measuring section 3 I remember it. The operation input reception unit 5 has an input device such as a keyboard, a touch panel, or an IC card reader, and accepts various operation inputs input by the input device and transfers them to the schedule generation unit 1. The information presenting section 6 has a display device such as a liquid crystal monitor, and presents various information to the user by displaying a character or an image on the display device. However, the information presenting unit 6 may include a speaker and present the information by sounding the speaker.

The schedule generation unit 1 creates a schedule for charging the storage batteries of the plurality of vehicles EV. The control unit 2 remotely controls the remote control breaker RBi of the sub distribution board SB via the control line L2 in accordance with the schedule created by the schedule creating unit 1, The charging path is opened and closed individually to turn on and off the charging of each vehicle EV. Moreover, the control part 2 also has a function which detects the connection state of each outlet CSi and the charging cable Lx, and delivers the detection result of the connection state for each outlet CSi to the schedule generation | generation part 1; Doing. In addition, an identification code (user ID) unique to a user who uses each vehicle EV is assigned, and the schedule generator 1 identifies each vehicle EV by the user ID. The ID numbers 1, 2, ..., M of the user ID are stored (registered) in the storage unit 4 of the charge control device CT. In addition, the schedule generation unit 1, the control unit 2, and the power measurement unit 3 include hardware such as a CPU (central processing unit) and a memory, and software for processing the units 1 to 3 (program). It consists of).

As described in the related art, the maximum power that can be received in the main distribution board MB and the sub distribution board SB of the building BD is usually determined by the contract power with the power company. However, when a power generation facility such as a photovoltaic power generation system or a fuel cell system is installed in a building BD, the maximum power is determined by the power obtained by adding power generated by the power generation facility to the contract power with the power company. In the description of the present specification, however, in order to simplify the description, the contract power with the electric power company is used as the maximum power. The information (maximum power value) of the maximum power of the building BD is stored in the storage unit 4 of the charge control device CT.

As shown in Fig. 3, the schedule generation unit 1 divides 24 hours starting at 12:00 noon into hourly time frames (frames), and frames 1 to 24 are divided into 24 frames in total. In addition to assigning numbers (see Fig. 3A), the maximum power in each frame is divided into a plurality of cells (8 columns vertically in the illustrated example). In principle, however, the frame is preferably divided in units of 30 minutes or less (preferably 10 minutes). However, in the present embodiment, the frames are divided in units of one hour for the sake of simplicity. Further, in the present embodiment, the power amount of one cell corresponds to 2 [kWh]. In Fig. 3B, a column corresponding to the amount of power supplied to the load device in the building BD via the main distribution board MB is hatched. Therefore, the white space which is not hatched in FIG. 3B corresponds to the amount of power available for charging the vehicle EV through the sub-distribution board SB. For example, as shown in Fig. 3B, in a time zone of 12 hours to 13:00 (frame number is 1 frame), the amount of power (= 2 x 6 = 12 [kWh]) for 6 cells is a load device. (= 2 x 2 = 4 [kWh]) for the remaining two spaces becomes an amount of electric power usable for charging the vehicle EV within a range not exceeding the maximum electric power. However, since the power used after the schedule creation time is originally unclear, the schedule generator 1 predicts the power used in each time frame (frame) based on past performance, season, weather, etc. of the power used. The schedule is generated using the prediction result.

Here, as shown in FIG. 2A, the remaining amount of the battery mounted in each vehicle EV is A [kWh], the target charge amount is B [kWh], and the full charge capacity of the battery (hereinafter, simply referred to as “charging capacity”). 3B) of the maximum power and the used electric power is set to be the time zone (for example, a time zone) in the time zone, For each vehicle EV connected to the sub-distribution panel SB, and charging to the charging amount (= BE) by subtracting the predetermined allowance E from the target charging amount B for each vehicle EV. Create a schedule. Originally, it is preferable to fully charge the storage batteries of all vehicles EV to the charging capacity C, but it is difficult due to the relationship between the number of vehicles EV and the maximum power and charging time. On the other hand, when each vehicle EV as in the prior art is sequentially charged, the amount of charge of the late order vehicle EV is greatly insufficient, resulting in dissatisfaction of the user. Here, in order to suppress the user's uncomfortable feeling even when charging can not be performed while charging as many vehicles EV as possible, the target amount of charge B required by the user of each vehicle EV is set to a predetermined amount It charges up to the amount (differential) which subtracted E), and divides the shortfall with respect to target charge amount B equally to each user. For example, in this embodiment, the clearance amount E in all the vehicle EV is set to the same value (refer FIG. 2B).

Next, the procedure of schedule creation by the schedule generation part 1 is demonstrated.

When the vehicle EV arrives at the building BD, the vehicle EV and the outlet CSi are connected to the charging cable Lx by the user. This user inputs his ID number, the starting time (planned time), and the target charge amount B, respectively, using the operation input receiving part 5 of the charge control apparatus CT. The operation input reception unit 5 receives the operation input of the ID number, the departure time, and the target filling amount B, and delivers it to the schedule generation unit 1. For the target charge amount B, the next scheduled driving distance [km] is input, and the schedule generating unit 1 is used for the fuel consumption rate [km / kWh] and the estimated driving distance [km] of the vehicle EV. , It is also possible to calculate the target charged amount B [kWh].

On the other hand, the control unit 2 detects that the charging cable Lx is connected to the receptacle CSi and notifies the schedule generating unit 1 of the connection. The schedule generation unit 1 associates the time (arrival time), the departure time, and the target amount of charge B notified from the control unit 2 with respect to the ID number received from the operation input reception unit 5, It is stored in 41 (refer FIG. 4A). Here, data is transferred between the vehicle EV and the control unit 2 via the charging cable Lx, and information (remaining amount A) relating to the remaining amount of the battery mounted on the vehicle EV is supplied to the control unit 2) can be obtained. The schedule generating unit 1 stores the remaining amount A of the battery obtained from the vehicle EV by the remaining amount information obtaining unit 21 of the control unit 2 in the storage unit 4 in association with the ID number. In addition, in the storage unit 4, as shown in FIG. 4A, the arrival time, departure time, target charge amount B, and remaining amount A of each user's ID number and the vehicle EV used by each user are determined. Information (hereinafter, referred to as "charge reservation information") is stored in a data table.

The schedule generator 1 replaces the arrival time and the departure time with the frame numbers 1 to 24 of the frame, and replaces the target charge amount B and the remaining amount A with the number of cells corresponding to the power amount. By this, as shown in Fig. 4B, the charge reservation information of the storage unit 4 is converted. For example, the arrival time in charge reservation information before conversion of the first ID number is 18: 0, the departure time is 7: 0 of the next day, the target charge amount B is 20 [kWh], and the remaining amount A is The frame number of the arrival time and the departure time of the charge reservation information after conversion are 7 and 20, respectively, and the number of the boxes of the target charged amount B 'and the remaining amount A' is 10 and 4, respectively do.

The schedule generating section 1 further reduces the amount of spare area E as much as possible and calculates the amount of spare area in all users (vehicle EV) based on the estimated charging reservation information after the conversion and the above- In order to make (E) uniform (preferably the same), the control part 2 prepares the schedule for turning on / off each remote control breaker RBi.

More specifically, as shown in Fig. 5, an optimal solution that minimizes the objective function (the total sum of the allowance amounts E in all the vehicles EV) under a predetermined constraint condition is obtained. That is, It is available. However, since the analysis method of such an optimization problem is conventionally well-known, detailed description is abbreviate | omitted.

The schedule generating unit 1 determines the charging amount of each vehicle EV by subtracting the margin amount E from the target charging amount B and determines the amount of power available for charging in each time frame so as to fill the charging amount A schedule is assigned to each vehicle EV.

As described above, in the charge control device CT of the present embodiment, the difference between the maximum electric power receivable from the electric power system AC and the electric power measured by the electric power measuring part 3 is distributed to each vehicle EV In addition, since the schedule generator 1 generates a schedule for charging up to the charge amount obtained by subtracting the predetermined allowance E from the target charge amount B for each vehicle EV, the increase in the contract power, the trip of the week breaker It is possible to simultaneously prevent the dissatisfaction of the user while simultaneously charging the plurality of vehicles EV. In particular, since the shortage (remaining amount E) with respect to the requested charge amount (target charge amount B) is the same in all the vehicles EV, dissatisfaction of the user of each vehicle EV can be suppressed.

By the way, it is not necessary to necessarily set the clearance amount E in all the vehicles EV (user) to the same value. For example, the margin amount E may be set at a constant rate with respect to the difference (= B-A) between the remaining amount A of the storage battery and the target charge amount B of each vehicle EV. In this case, since the vehicle EV having a smaller amount of charge (= B-A) is actually required, the amount E of the vehicle is also reduced, which can further reduce the user's dissatisfaction. In this case, as shown in FIG. 6, the schedule generation part 1 may create a schedule using the optimal solution obtained by changing a part of the restriction conditions shown in FIG.

Alternatively, the margin amount E may be set at a constant ratio with respect to the target filling amount B. In this case, as the vehicle EV having a smaller demand amount (target charging amount B) has a smaller amount E, the user's dissatisfaction can be further reduced. In this case, the optimal solution may be obtained by setting the remaining amount A 'to zero in the restriction conditions shown in FIG.

In addition, it is assumed that the charging control device CT cannot acquire the target charging amount B due to a user's input missing or the like. In such a case, the surplus amount E may be set using the charge capacity C of each vehicle EV instead of the target charge amount B. FIG. In this case, the setting of the margin amount E and the generation of the schedule may be performed by substituting the target charge amount B 'under any one of the above-mentioned limitation conditions with the charge capacity C' to obtain an optimal solution.

Here, depending on the vehicle model, the control part 2 of the charge control apparatus CT may not be able to acquire the information of the residual amount A of a storage battery from the vehicle EV. In such a case, the remaining amount A may be regarded as zero, and the remaining amount E may be set. In this case, the setting of the margin amount E and the generation of the schedule may be performed by finding the optimum solution by setting the remaining amount A 'under any one of the above-mentioned limitation conditions to zero. In addition, in the charge control apparatus CT of this embodiment, since the control part 2 only turns on / off the charge path according to a schedule, the full charge (charging) is so that the vehicle EV with many residual amounts A of a storage battery is large. The capacity C is increased).

By the way, it is assumed that the charging control device CT cannot acquire the information of the starting time, the target charging amount B, and the remaining amount A due to the user's input missing or the like. Alternatively, when the user's usage type (departure time, arrival time, travel distance, etc.) is almost determined, when the user inputs information such as the target charging amount B (every day), it takes a lot of hands. It is preferable that information input can be omitted. Here, each user registers in advance the information of his use form (departure time, arrival time, travel distance, etc.) in the charge control apparatus CT, and the schedule generation part 1 of the usage form registered beforehand is shown here. You can create a schedule based on the information. Alternatively, based on the history (history) of the usage form (departure time, arrival time, target amount of charge, etc.) of the user stored in the storage unit 42 instead of registering the information of the usage form of the user, The generation unit 1 may generate a schedule. For example, an average value of past departure time, arrival time, target amount of charge, and the like may be obtained and the average value may be used.

Here, the schedule generating section 1 sets the target amount of charge B based on the operation input accepted by the operation input accepting section 5 and sets the charge amount (= It is preferable to estimate the ratio (attainment rate: (BE) / B × 100 [%]) between the BE) and the target filling amount B, and to present the estimated achievement rate to the information presenting section 6. That is, when the user inputs the target filling amount B, the reference (achieve rate) of how much is actually charged is presented to the user from the information presenting unit 6, so that the user reviews the target filling amount B again, By knowing the achievement rate in advance, the user's dissatisfaction can be reduced.

In addition, while the control unit 2 is controlling the remote control breaker RBi according to the schedule, the schedule generation unit 1 may provide information about the schedule, for example, the amount of charge (remaining amount) of each vehicle EV or the like. It is preferable to appropriately present the estimated time of end of charging, abnormality of charging, past charging performance, etc. from the information presenting section 6 to the user, for example, at the request of the user. This improves the convenience for the user.

 (Embodiment 2)

Since the configurations of the charging control device CT and the charging system of the present embodiment are the same as those of the first embodiment, the same reference numerals are given to the common constituent elements, and illustration and description are omitted.

The charging control device CT of the present embodiment stores in the storage unit 43 the priority assigned to each vehicle EV (actually, for each user of each vehicle EV), and stores the storage unit 43. , The schedule generating section 1 generates a schedule based on the priority stored in the scheduling section 1.

For example, a plurality of kinds of charging conditions in which the basic charge and the unit price are different are set, and one of the plurality of charging conditions is determined for each user as an electric charge of electric power necessary for charging the battery of the vehicle EV, Priority according to the charging condition as shown in FIG. 7A is set. In the example of illustration, there are three types of charging conditions (S1, S2, S3) in order of the basic rate and the unit price, and the first to third priority for these three types of charging conditions (S1, S2, S3). The ranking is assigned.

7B, when the charging conditions S1, S3, and S3 are determined for the users 1, 2, and 3, the schedule generating unit 1 generates a schedule The sum of the priority levels of the power sources is denominator, and the coefficient (E ') of the user's power supply amount is multiplied by a coefficient having the numerical value of the priority for each user. Therefore, as the vehicle EV of a user having a higher priority (lower value), the margin amount becomes smaller and the charging amount increases.

In addition, the schedule may be generated in consideration of not only the charging conditions but also the priority based on the arrival time. At this time, weighting (priority ratio) may be set for two types of priorities of the charging condition and the arrival time. For example, as shown in FIG. 8A, the priority ratio of the charging condition is 0.4 based on the arrival time. The priority ratio of priority is 0.6. However, the sum of the priority ratios of each kind is set to one.

For example, each vehicle EV of the user of the first, second, and third user IDs arrives in the seventh, eighth, and ninth frames, respectively, and the charging conditions of each user are S1, S3, Assume S3. At this time, as shown in Fig. 8B, the schedule generation unit 1 uses the sum of the numerical values of the priority of all the users for the charging condition as the denominators, and the coefficients having the numerical value of the priority for each user as the numerator. The value obtained by multiplying the value multiplied by 0.4 of the first ratio with the sum of the numerical values of the frames at the arrival time of all users as the denominator, and the coefficient of the numerical value of the frames at the arrival time for each user as the numerator, multiplied by the value of the first ratio 0.6 The sum is multiplied by the total amount E 'of the user reserves. Therefore, the higher the charging condition priority and the faster the arrival time of the vehicle EV of the user, the smaller the margin amount is and the charging amount is increased.

As described above, if the schedule generating unit 1 generates a schedule based on one or a plurality of kinds of priorities, the user's complaints can be further reduced.

While the preferred embodiments of the present invention have been described above, the present invention is not limited to these specific embodiments, and various changes and modifications can be made without departing from the scope of the following claims, which are also within the scope of the present invention. something to do.

Claims (13)

A charge control device that controls the amount of charge when charging a plurality of vehicles each equipped with a storage battery,
A schedule preparation unit for preparing a schedule for charging the storage batteries of the plurality of vehicles;
A control section for opening and closing the charging paths to the plurality of vehicles in accordance with the schedule created by the schedule preparation unit, and turning on / off charging of the respective vehicles.
And,
And the schedule preparation unit creates the schedule such that the schedule creation unit charges up to a charge amount obtained by subtracting a predetermined margin amount from a target charge amount for each vehicle.
The method of claim 1,
Further comprising a power measuring unit for measuring the amount of power consumed by the load device other than the vehicle,
And the schedule preparation unit distributes the difference between the maximum power that can be received from the power system and the power measured by the power measurement unit to the respective vehicles for each time period. The method of claim 2,
The schedule preparation unit sets the allowances in all the vehicles to the same value.
The method of claim 2,
A remaining amount information acquiring unit for acquiring information on the remaining amount of the storage battery of the vehicle from the vehicle;
And the schedule preparation unit sets the allowable amount at a constant ratio with respect to the difference between the remaining amount of storage battery for each vehicle and the target charge amount based on the information.
The method of claim 2,
And the schedule preparation unit sets the allowable amount at a constant rate with respect to the target charge amount for each vehicle.
6. The method according to any one of claims 2 to 5,
Further comprising an operation input receiving unit for receiving the operation input of the user using the vehicle,
And the schedule generating unit sets the target charging amount based on the operation input received by the operation input receiving unit.
6. The method according to any one of claims 2 to 5,
And the schedule generating unit sets the charging capacity of the storage battery of each vehicle as the target charging amount for each vehicle.
8. The method according to any one of claims 2 to 7,
And a storage unit for storing the target charge amount for each vehicle,
And the schedule generation unit generates the schedule using the target charge amount stored in the storage unit.
8. The method according to any one of claims 2 to 7,
And a storage unit for storing the performance of the past charge amount for each vehicle,
And the schedule generation unit sets the target charge amount based on the past performance of the charge amount stored in the storage unit.
The method according to any one of claims 2 to 9,
A storage section for storing priorities assigned to each of the vehicles,
And the schedule generation unit generates the schedule based on the priority stored in the storage unit.
11. The method of claim 10,
The storage unit stores a plurality of types of priority assigned to each vehicle,
And the schedule generation unit generates the schedule based on the plurality of types of priorities stored in the storage unit.
6. The method according to any one of claims 2 to 5,
An operation input reception unit that receives operation inputs of a user who uses the vehicle;
A storage unit for storing the performance of the past charge amount for each vehicle;
Information presenting unit for presenting information to the user
Further comprising:
The schedule generation unit sets the target charging amount based on the operation input received by the operation input receiving unit, estimates a ratio between the charging amount obtained by subtracting the margin amount from the target charging amount and the target charging amount, and calculates the ratio. A charging control device characterized by being presented to the information presentation unit.
12. The method according to any one of claims 2 to 11,
An information presenting unit for presenting information to a user who uses the vehicle;
And the schedule generating unit presents the information about the schedule to the information presenting unit in response to a request from the user.

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