Control device

Abstract

A server (control device) according to the present invention is provided with a communication device (acquisition unit) that acquires information relating to the amount of power required to move from an EVSE (charger) to each of a plurality of electric vehicles. The server is provided with a processor that controls the EVSE to charge each of the plurality of electric vehicles. The processor performs charging control (first charging control) so that the amount of charge of each of the plurality of electric vehicles reaches the required amount of charge, and then performs charging control (second charging control) for charging each of the plurality of electric vehicles.

Description

Technical Field

[0001] The present disclosure relates to a control device. Background Art

[0002] Japanese Patent Application Laid-Open No. 2018-191471 discloses a charging control method for sequentially charging batteries of multiple pure electric vehicles using a charger. Summary of the invention

[0003] Although there is no clear description in the above-mentioned Japanese Patent Laid-Open No. 2018-191471, when charging multiple pure electric vehicles in sequence, the charge amount of the pure electric vehicle charged later may be limited before the storage amount of the pure electric vehicle charged first reaches a specified value (e.g., fully charged). In this case, it is considered that the pure electric vehicle charged later is not charged sufficiently and cannot move to its own location (charging location). In addition, it is considered that there are pure electric vehicles among the pure electric vehicles that want to be charged further than the amount of electricity required to move to their own location.

[0004] The present disclosure has been made to solve the above-mentioned problems, and an object thereof is to provide a control device capable of further increasing the storage amount of electric vehicles while ensuring at least a charge amount sufficient for each of a plurality of electric vehicles to move to its own location.

[0005] A control device according to one aspect of the present disclosure is a control device that controls charging of a plurality of electric vehicles by a charger.

[0006] The control device has:

[0007] an acquisition unit that acquires information related to a required amount of electricity required to move from the charger to respective locations of the plurality of electric vehicles; and

[0008] The processor controls the charger to charge each of the plurality of electric vehicles.

[0009] The processor executes first charging control so that the power storage amount of each of the plurality of electric vehicles reaches a first target value based on the required power, and the processor executes second charging control for charging at least one of the plurality of electric vehicles after the first charging control.

[0010] The control device of one aspect of the present disclosure performs a first charging control as described above, so that the power storage amount of each of the plurality of electric vehicles reaches a first target value based on the required power. Moreover, after the first charging control, the control device performs a second charging control for charging at least one of the plurality of electric vehicles. Thus, the charging amount can be ensured by the first charging control so that the power storage amount of each of the plurality of electric vehicles at least reaches the first target value, and the power storage amount of at least one electric vehicle is made higher than the first target value by the second charging control. Therefore, the power storage amount of the electric vehicles can be further increased while at least the charging amount of each of the plurality of electric vehicles is ensured to enable them to move to their own locations.

[0011] In the control device of the above aspect, preferably, when the plurality of electric vehicles are included in the plurality of charging vehicles charged in the second charging control, the processor performs control such that the charging power distributed from the charger to each of the plurality of charging vehicles in the second charging control is equal. If so configured, the plurality of charging vehicles can be charged equally by the second charging control.

[0012] Here, the charger includes a charging connector connected to a charging port provided at each of the plurality of electric vehicles. In the control device of the above-mentioned one aspect, preferably, when the plurality of electric vehicles include the plurality of charging vehicles to be charged in the second charging control, the processor preferentially charges the charging vehicle to which the charging connector is connected earlier among the plurality of charging vehicles in the second charging control. If so configured, the storage amount of the charging vehicle to which the charging connector is connected earlier can be preferentially increased through the second charging control.

[0013] Here, it is assumed that each of the plurality of electric vehicles is set to be charged by the second charging control until the stored amount reaches a second target value greater than the first target value. In the control device of the above-mentioned one aspect, preferably, when the plurality of electric vehicles include a plurality of charging vehicles charged in the second charging control, the processor preferentially charges the charging vehicle in the second charging control that has a large difference between the stored amount after the first charging control and the second target value among the plurality of charging vehicles. If so configured, it is possible to easily make the stored amount of each of the plurality of charging vehicles close to the second target value.

[0014] In the control device of the above aspect, preferably, when the plurality of electric vehicles include the plurality of charging vehicles charged in the second charging control, the processor preferentially charges the charging vehicle with an earlier scheduled departure time from the charger among the plurality of charging vehicles in the second charging control. If so configured, it is possible to prevent the charging vehicle with an earlier scheduled departure time from being insufficiently charged.

[0015] According to the present disclosure, it is possible to further increase the storage amount of the electric vehicles while ensuring at least a charge amount sufficient for each of the plurality of electric vehicles to move to its own location. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The features, advantages, technical and industrial significance of exemplary embodiments of the present invention are described below in conjunction with the accompanying drawings, in which like reference numerals represent like elements, wherein:

[0017] Figure 1 It is a diagram showing the configuration of a system according to one embodiment.

[0018] Figure 2 It is a block diagram showing the functional features of a processor according to one embodiment.

[0019] Figure 3 It is a timing chart showing control in the system according to one embodiment.

[0020] Figure 4 It is a timing chart showing control in a system according to a first modified example of an embodiment.

[0021] Figure 5 It is a timing chart showing control in a system according to a second modification example of one embodiment.

[0022] Figure 6 It is a timing chart showing control in a system according to a third modified example of one embodiment. DETAILED DESCRIPTION

[0023] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and their description will not be repeated.

[0024] Figure 1 1 is a diagram showing the structure of a system 1 of the present embodiment. The system 1 includes a server 100, a management server 210, an electric vehicle supply equipment (EVSE) 220, and a plurality of electric vehicles 10. It should be noted that the server 100 and the EVSE 220 are examples of a “control device” and a “charger”, respectively, in the present disclosure.

[0025] The electric vehicle 10 includes, for example, a plug-in hybrid electric vehicle (PHEV), a battery electric vehicle (BEV), or a fuel cell electric vehicle (FCEV).

[0026] The electric vehicle 10 includes a battery 11, a communication unit 12, and an insertion port 13. The battery 11 stores electric power for driving the electric vehicle 10. The communication unit 12 is configured to be able to communicate with a server 100 (a communication device 130 described later). In addition, the electric vehicle 10 is configured to be connected to the insertion port 13 via a charging connector 221 described later, and can be electrically connected to the EVSE 220. It should be noted that the connection between the charging connector 221 and the electric vehicle 10 (insertion port 13) is sometimes referred to as a plug connection below. In addition, the insertion port 13 is an example of a "charging port" disclosed in the present invention.

[0027] EVSE 220 is a vehicle power supply device. EVSE 220 is installed in a parking lot of accommodation facility 200, for example. Figure 1 In the figure, only one EVSE 220 is shown for simplicity, but in reality, a plurality of EVSEs 220 are provided. The EVSE 220 includes a charging connector 221. When the charging connector 221 is connected to the electric vehicle 10 (the inlet 13), the electric vehicle 10 is charged from the EVSE 220.

[0028] The electric power stored in the power storage device 201 of the accommodation facility 200 is supplied to the battery 11 of the electric vehicle 10 through the EVSE 220. The electric power of the power storage device 201 is also consumed when home appliances and the like are used in the accommodation facility 200.

[0029] In addition, power is supplied from a power system (not shown) to the power storage device 201. In addition, power may be supplied from a solar power generation system (not shown) installed in the accommodation facility 200 to the power storage device 201. In addition, power may be supplied from the electric vehicle 10 to the power storage device 201 via the EVSE 220.

[0030] The management server 210 manages the power state of the power storage device 201 of the accommodation facility 200. The management server 210 manages the power (kW) consumed from the power storage device 201 by charging the electric vehicle 10, etc. Here, the upper limit value (kW) of the power that can be taken out from the power storage device 201 per unit time is predetermined by the contract. Hereinafter, the above-mentioned upper limit value is sometimes referred to as the contracted power. The management server 210 calculates the surplus power per unit time that can be taken out from the power storage device 201 based on the relationship between the above-mentioned upper limit value (contracted power) and the consumed power. The information of the calculated surplus power is sent from the management server 210 to the server 100 (the communication device 130 described later). In addition, the above-mentioned surplus power can also be calculated in the server 100.

[0031] The server 100 controls charging of a plurality of electric vehicles 10 using the EVSE 220. The server 100 includes a processor 110, a storage device 120, and a communication device 130. The communication device 130 is an example of an "acquisition unit" in the present disclosure.

[0032] The processor 110 controls the charging of each of the plurality of electric vehicles 10 by the EVSE 220. Figure 3 To be described later.

[0033] In the storage device 120, in addition to the program executed by the processor 110, information used in the program (for example, mapping, mathematical formulas, and various parameters) is stored. In the storage device 120, information of a plurality of registered electric vehicles 10, information of each registered user, information of the registered EVSE 220, and information of the registered management server 210 are distinguished and stored by identification information (ID).

[0034] The communication device 130 includes various communication I / Fs. The communication device 130 is controlled by the processor 110. The communication device 130 is configured to be able to communicate with the management server 210 and each of the plurality of electric vehicles 10 (communication unit 12).

[0035] The communication device 130 receives information related to the required power from each of the plurality of electric vehicles 10. The required power refers to the power required for each electric vehicle 10 to move from the EVSE 220 to the location 20 (at Figure 1 The communication device 130 receives information related to the required power from the electric vehicle 10 when the electric vehicle 10 is connected to the EVSE 220 or arrives at the accommodation facility 200. In addition, in the present embodiment, the required power refers to the size of the state of charge (SOC) required to move from the EVSE 220 to the location 20. In addition, the required power in the present embodiment is an example of the "first target value based on the required power" of the present disclosure.

[0036] The information related to the required power may include, for example, at least one of the location information of the location 20, the information of the power consumption when moving from the location 20 to the EVSE 220, the information of the travel distance from the location 20 to the EVSE 220, the information of the catalog value of the power consumption of the electric vehicle, and the information of the change amount of the SOC when moving from the location 20 to the EVSE 220. The processor 110 (the required power calculation unit 111 described later) calculates the required power of each electric vehicle 10 based on the information related to the required power. In addition, the processor 110 may also obtain the required power calculated in the electric vehicle 10 through the communication device 130.

[0037] like Figure 2As shown, the processor 110 includes a required power calculation unit 111, a remaining power determination unit 112, a charging plan setting unit 113, and a charging instruction unit 114. The required power calculation unit 111, the remaining power determination unit 112, the charging plan setting unit 113, and the charging instruction unit 114 respectively represent software that modularizes the functional features of the processor 110. Each function will be described later.

[0038] Processor 110 (required power calculation unit 111) calculates the required power of each of the plurality of electric vehicles 10 based on the required power information received from communication device 130. The calculated required power information may be stored in storage device 120 in association with information (ID) of electric vehicle 10.

[0039] The processor 110 (the remaining power determination unit 112) determines whether there is remaining power that can be used to charge the electric vehicle 10. Specifically, the processor 110 (the remaining power determination unit 112) performs the above prediction based on the remaining power (kW) of the power that can be taken out from the power storage device 201 per unit time. For example, if the above remaining power (kW) is less than the reference value of the charging power (kW) of the electric vehicle 10 per unit time, it is determined that there is no remaining power. In addition, the above remaining power (kW) can also be calculated in the server 100. In addition, the above determination can also be made without using the above reference value. For example, when the above remaining power (kW) is less than the charging power (maximum output) of the electric vehicle 10 that has been newly plugged in, it can be determined that there is no remaining power.

[0040] The processor 110 (charging plan setting unit 113) sets a charging plan for each of the plurality of electric vehicles 10. The processor 110 (charging plan setting unit 113) sets the charging plan based on the required power calculated by the required power calculation unit 111 and the determination result of the remaining power determination unit 112. Details will be described later.

[0041] The processor 110 (charging instruction unit 114) generates a command signal for instructing at least one of the electric vehicle 10 and the EVSE 220 to charge. The command signal is transmitted to at least one of the electric vehicle 10 and the EVSE 220 via the communication device 130. Based on the command signal, charging between the electric vehicle 10 and the EVSE 220 is controlled.

[0042] Here, in the conventional system, when charging a plurality of electric vehicles in sequence, the charge amount of the later charged electric vehicle may be limited until the storage amount of the first charged electric vehicle reaches a predetermined value (e.g., fully charged). In this case, it is considered that the later charged electric vehicle is not fully charged and cannot move to its own location (charging location). In addition, it is considered that there are electric vehicles that want to be charged more than the amount of electricity required to move to their own location.

[0043] Therefore, in this embodiment, the server 100 performs charging control (first charging control) so that the power storage amount of each of the plurality of electric vehicles 10 reaches the required power, and after the first charging control, performs charging control (second charging control) for further charging each of the plurality of electric vehicles 10. Figure 3 The timing diagram is used to illustrate this.

[0044] Charging control sequence

[0045] Next, we will refer to Figure 3 The charging control procedure of the server 100 , the management server 210 , and the electric vehicle 10 will be described.

[0046] In S20 , each of the plurality of electric vehicles 10 transmits information on the required electric power to the server 100 (communication device 130 ).

[0047] In S30, the management server 210 transmits information about the remaining power (kW) of the power that can be taken out of the power storage device 201 per unit time to the server 100 (communication device 130). The remaining power information includes at least one of the current remaining power value and the predicted value of the remaining power after a predetermined time (for example, 10 minutes). The process of S30 is periodically performed at predetermined time intervals (for example, every 1 minute).

[0048] In S10, server 100 (required power calculation unit 111) calculates the required power of each electric vehicle 10 based on the information transmitted from each electric vehicle 10 in S20. The process of S10 is executed every time information on the required power is transmitted from an electric vehicle 10.

[0049] In S11, the server 100 (the remaining power determination unit 112) determines whether the remaining power in the power storage device 201 has changed (or is predicted to change). Specifically, the server 100 executes the process of S11 based on the information on the remaining power transmitted in S30. The remaining power changes in the case where the number of electric vehicles 10 to be charged changes (is predicted to change), the case where the amount of power used in the accommodation facility 200 changes (is predicted to change), etc. are considered. In addition, the number of electric vehicles 10 to be charged can also be predicted based on the reservation status of charging, the history information of past charging, etc. In addition, the amount of power used in the accommodation facility 200 can also be predicted based on the history information of past power usage, etc. If it is determined that the remaining power has changed (Yes in S11), the process proceeds to S12. If it is determined that the remaining power has not changed (No in S11), the process ends.

[0050] In S12, the server 100 (remaining power determination unit 112) determines whether there is no remaining power in the power storage device 201. If there is no remaining power (Yes in S12), the process proceeds to S13. If there is remaining power (No in S12), the process ends.

[0051] In S13, the server 100 (charging instruction unit 114) preferentially executes (continues) charging in the electric vehicle 10 that has been connected to the plug earlier, and stops charging in the electric vehicle 10 that has been connected to the plug later. For example, the contracted power of the power storage device 201 is set to 10kW. The charging power (maximum output) from the electric vehicle 10 that has been connected to the plug earlier is 3kW, 2kW, 2kW, 2kW, 3kW, etc. In this case, the first to fourth vehicles whose total charging power is less than 10kW are charged, and the charging of the fifth and subsequent vehicles is stopped (becoming a charging waiting state).

[0052] In S14, the server 100 (charging command unit 114) stops charging of the electric vehicle 10 whose SOC reaches the required power. Furthermore, the server 100 (charging command unit 114) starts charging of the electric vehicle 10 that is waiting for charging in accordance with the increase in remaining power due to the stop of charging of the electric vehicle 10. The charging of the electric vehicle 10 that is waiting for charging is also started with priority from the electric vehicle 10 that was connected to the plug earlier.

[0053] In S15, the server 100 (processor 110) determines whether the power storage amount of all electric vehicles 10 has reached the required power. If the power storage amount of all electric vehicles 10 has reached the required power (Yes in S15), the process proceeds to S16. If there is an electric vehicle 10 whose power storage amount has not reached the required power (No in S15), the process returns to S14. In addition, the charging control from S13 to S15 is an example of the "first charging control" of the present disclosure.

[0054] In S16, the server 100 (charging instruction unit 114) performs charging control in a manner that evenly distributes charging power to all electric vehicles 10. Specifically, when the contracted power of the power storage device 201 is 10 kW and 5 electric vehicles 10 are connected to the plug, the charging power of each electric vehicle 10 is set to 2 kW. In addition, in the case where there is an electric vehicle 10 whose upper limit value of charging power is limited due to a relatively high SOC, etc., the charging power of each of the other multiple (set to N) electric vehicles 10 is set to (contracted power-the above upper limit value) / N (kW). In the case where there are multiple electric vehicles 10 whose upper limit values ​​of charging power are limited, the charging power of each of the other multiple electric vehicles 10 is set to (contracted power-the sum of the above upper limit values) / N (kW). In addition, the multiple electric vehicles 10 charged in S16 are each an example of a "charging vehicle" disclosed in the present invention.

[0055] In S17, the server 100 (charging instruction unit 114) stops charging the electric vehicle 10 that has reached full charge. The charging of the electric vehicle 10, for which a target value of the charge amount is preset (e.g., SOC=80%), stops when the stored electricity amount reaches the target value. In addition, the charging control of S16 and S17 is an example of the "second charging control" of the present disclosure. In addition, full charge (target value) is an example of the "second target value" of the present disclosure.

[0056] In S18, the server 100 (processor 110) determines whether all electric vehicles 10 have been charged to reach full charge (target value). If all electric vehicles 10 have been charged to reach full charge (target value) (Yes in S18), the process ends. If there is an electric vehicle 10 that has not been charged to reach full charge (target value) (No in S18), the process returns to S16.

[0057] Furthermore, charging by the server 100 (charging instruction unit 114 ) is performed based on the charging plan set in the charging plan setting unit 113 .

[0058] As described above, in the present embodiment, the server 100 (processor 110) performs charging control (first charging control) in such a manner that the power storage amount of each of the plurality of electric vehicles 10 reaches the required power, and after the first charging control, performs charging control (second charging control) for further charging each of the plurality of electric vehicles 10. Thus, through the first charging control, the power storage amount of each of the plurality of electric vehicles 10 can be at least greater than the required power. As a result, it is possible to prevent the electric vehicle 10 from being unable to return to its own location due to insufficient charging. Moreover, since the second charging control is also performed after the first charging control, the power storage amount of each electric vehicle 10 can be higher than the required power. In addition, through the first charging control, at least the required power is automatically charged, so the user can omit the effort of presetting setting values ​​such as the charging amount.

[0059] In the present embodiment, server 100 (processor 110 ) performs charging until each of electric vehicles 10 has a required amount of power, and then performs control to distribute charging power equally to each of electric vehicles 10 . This can suppress differences in power storage between electric vehicles 10 .

[0060] In the above embodiment, an example is shown in which the charging power is evenly distributed during charging after the storage power of each electric vehicle 10 reaches the required power, but the present disclosure is not limited to this. Figures 4 to 6 Modification examples are shown in FIG.

[0061] exist Figure 4 In the modified example shown, instead of S16 (see Figure 3 ) and execute the process of S116. In S116, the electric vehicle 10 with an earlier plug connection timing is charged first. For example, the contracted power of the power storage device 201 is 10kW and the charging power (maximum output) is 3kWh, 2kW, 2kW, 2kW, 3kW... from the electric vehicle 10 with an earlier plug connection order. In this case, the first to fourth vehicles with a total charging power of less than 10kW are charged, and the charging of the fifth and subsequent vehicles is stopped (becoming a charging waiting state). The other steps are the same as the above-mentioned embodiment.

[0062] exist Figure 5 In the modified example shown, instead of S16 (see Figure 3) and execute the processing of S216. In S216, the electric vehicle 10 with a large difference between the stored power (required power) after S15 and the fully charged (target value) is charged first. For example, the contracted power of the power storage device 201 is 10kW and the charging power (maximum output) from the electric vehicle 10 with a large difference is 3kWh, 2kW, 2kW, 2kW, 3kW... In this case, the first to fourth units whose total charging power is less than 10kW are charged, and the charging of the fifth and subsequent units is stopped (becoming a charging waiting state). The other steps are the same as the above-mentioned embodiment.

[0063] exist Figure 6 In the modified example shown, instead of S16 (see Figure 3 ) and execute the processing of S316. In S316, priority is given to charging the electric vehicle 10 that has an earlier scheduled departure time from EVSE220. For example, the contracted power of the power storage device 201 is 10kW and the charging power (maximum output) from the electric vehicle 10 with an earlier scheduled departure time is 3kWh, 2kW, 2kW, 2kW, 3kW... In this case, the first to fourth vehicles whose total charging power is less than 10kW are charged, and the charging of the fifth and subsequent vehicles is stopped (becoming a charging waiting state). The other steps are the same as the above-mentioned embodiment.

[0064] In the above embodiment, if Figure 3 Although the example in which the processing after S13 is executed when it is determined in S12 that the power storage device 201 has no remaining power is shown, the present disclosure is not limited thereto. The processing after S13 may be executed without executing the determination processing of S12 (and S11).

[0065] In the above embodiment, after the storage capacity of each of the plurality of electric vehicles 10 reaches the required capacity, the plurality of electric vehicles 10 are further charged to full capacity (target value), but the present disclosure is not limited thereto. Only one of the plurality of electric vehicles 10 may be charged to full capacity (target value).

[0066] In the above-mentioned embodiments and Figure 4 In the modification shown, an example is shown in which the electric vehicle 10 connected to the plug earlier is charged first, but the present disclosure is not limited to this. For example, when the electric vehicle 10 is charged contactlessly, the priority mentioned above may be determined based on the timing when the electric vehicle 10 stops in the charging area. In addition, the priority mentioned above may be determined based on the timing when the electric vehicle 10 arrives at the parking lot of the accommodation facility 200, etc.

[0067] In the above embodiment, the example where the location 20 is the home of the user of the electric vehicle 10 is shown, but the present disclosure is not limited thereto. The location may also be a facility where the electric vehicle 10 was last charged. In addition, the location may also be a chargeable facility closest to the EVSE 220.

[0068] In the above embodiment, an example of charging the plurality of electric vehicles 10 to the required power is shown, but the present disclosure is not limited thereto. For example, the plurality of electric vehicles 10 may be charged to a value obtained by adding a predetermined power to the required power (for example, SOC corresponding to the required power + 10%). In this case, the above value obtained by adding the predetermined power to the required power is an example of the "first target value" of the present disclosure.

[0069] In the above embodiment, the EVSE 220 (power storage device 201 ) is installed in the accommodation facility 200 , but the present disclosure is not limited thereto. The EVSE 220 (power storage device 201 ) may be installed in facilities other than the accommodation facility 200 (eg, theme parks and shopping malls).

[0070] In the above embodiment, an example is shown in which the charging of the electric vehicle 10 whose storage capacity reaches the required power earlier is stopped until the storage capacity of all the electric vehicles 10 reaches the required power, but the present disclosure is not limited to this. For example, the charging of the electric vehicle 10 whose storage capacity reaches the required power earlier may be restarted before the storage capacity of all the electric vehicles 10 reaches the required power.

[0071] In the above embodiment, the charging control is performed based on the power state (whether there is spare power) of the power storage device 201 , but the present disclosure is not limited thereto. The charging control may be performed based on the power state (whether there is spare power) of the power system supplying power to the EVSE 220 .

[0072] In the above embodiment, an example is shown in which the presence or absence of remaining power is determined based on the relationship between the power that can be taken out from the power storage device 201 per unit time (contracted power) and the total amount of charging power of each electric vehicle 10, but the present disclosure is not limited thereto. For example, the presence or absence of remaining power may also be determined based on the remaining amount of electricity stored in the power storage device 201.

[0073] The embodiments disclosed herein are illustrative in all aspects and should not be construed as restrictive. The scope of the present disclosure is indicated by the claims rather than the description of the embodiments described above, and is intended to include all modifications within the meaning and scope equivalent to the claims.

Claims

1. A control device, the control device controlling a charger to charge a plurality of electric vehicles, the control device comprising: an acquisition unit that acquires information related to a required amount of electricity required to move from the charger to respective locations of the plurality of electric vehicles; as well as A processor controls the charger to charge each of the plurality of electric vehicles, wherein: The processor performs a first charging control in such a manner that the storage amount of each of the plurality of electric vehicles reaches a first target value, the first target value being based on the required amount of electricity, and The processor performs a second charging control for charging at least one of the plurality of electric vehicles after the first charging control.

2. The control device according to claim 1, wherein: When the plurality of electric vehicles include a plurality of charging vehicles charged in the second charging control, the processor performs control so that charging power distributed from the charger to each of the plurality of charging vehicles in the second charging control is equalized.

3. The control device according to claim 1, wherein: The charger includes a charging connector connected to a charging port provided on each of the plurality of electric vehicles. When the plurality of electric vehicles include a plurality of charging vehicles charged in the second charging control, the processor preferentially charges a charging vehicle to which the charging connector is connected earlier among the plurality of charging vehicles in the second charging control.

4. The control device according to claim 1, wherein: Each of the plurality of electric vehicles is set to be charged by the second charging control until the stored amount reaches a second target value greater than the first target value, When the plurality of electric vehicles include a plurality of charging vehicles charged in the second charging control, the processor preferentially charges, in the second charging control, a charging vehicle among the plurality of charging vehicles having a large difference between the storage amount after the first charging control and the second target value.

5. The control device according to claim 1, wherein: When the plurality of electric vehicles include a plurality of charging vehicles charged in the second charging control, the processor preferentially charges a charging vehicle having an earlier scheduled departure time from the charger among the plurality of charging vehicles in the second charging control.

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