controller

Abstract

To provide a controller capable of further increasing a power storage amount of each of electric vehicles, while acquiring at least a charge amount with which each of the plurality of electric vehicles can move to an own site.SOLUTION: A server 100 (controller) comprises a communication device 130 (acquisition part) for acquiring information about a necessary power amount required for moving from an EVSE 220 (charger) to a site 20 of each of a plurality of electric vehicles 10. The server 100 comprises a processor 110 for controlling charging of each of the plurality of electric vehicles 10 with the EVSE 220. The processor 110 executes charge control (second charge control) for charging each of the plurality of electric vehicles 10, after executing charge control (first charge control) in such a manner that a power storage amount of each of the plurality of electric vehicles 10 reaches the necessary power amount.SELECTED DRAWING: Figure 3

Description

[Technical field]

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

[0002] Japanese Patent Laid-Open Publication No. 2018-191471 (Patent Document 1) discloses a charging control method for sequentially charging the batteries of a plurality of electric vehicles using a charger. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2018-191471 A Summary of the Invention [Problem to be solved by the invention]

[0004] Although not specified in the above Patent Document 1, when multiple electric vehicles are charged in sequence, there is a risk that the charge amount of the electric vehicle that is charged later will be limited until the stored power amount of the electric vehicle that is charged first reaches a predetermined value (for example, fully charged). In this case, it is considered that the electric vehicle that is charged later will not be sufficiently charged and will not be able to move to its own base (charging base). In addition, it is considered that there are electric vehicles that wish to be charged with more power than is required to move to their own base.

[0005] The present disclosure has been made to solve the above-mentioned problems, and has as its objective to provide a control device that can further increase the amount of stored electricity in multiple electric vehicles while ensuring at least an amount of charge that enables each of the electric vehicles to travel to its own base. [Means for solving the problem]

[0006] 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, and includes an acquisition unit that acquires information regarding a required amount of power required for each of the plurality of electric vehicles to move from the charger to a base station, and a processor that controls charging of each of the plurality of electric vehicles by the charger. The processor executes a first charging control so that the amount of stored power in each of the plurality of electric vehicles reaches a first target value based on the required amount of power, and executes a second charging control to charge at least one of the plurality of electric vehicles after the first charging control.

[0007] As described above, the control device according to one aspect of the present disclosure executes a first charge control so that the amount of stored power in each of the multiple electric vehicles reaches a first target value based on the required amount of power, and executes a second charge control to charge at least one of the multiple electric vehicles after the first charge control. As a result, the first charge control ensures a charge amount such that the amount of stored power in each of the multiple electric vehicles reaches at least the first target value, while the second charge control makes it possible to make the amount of stored power in at least one electric vehicle even higher than the first target value. Therefore, it is possible to further increase the amount of stored power in the electric vehicles while ensuring at least a charge amount that enables each of the multiple electric vehicles to travel to its own base.

[0008] In the control device according to the above aspect, preferably, when the plurality of electric vehicles includes a plurality of charging vehicles that are charged in the second charging control, the processor performs control to equalize charging power allocated from the charger to each of the plurality of charging vehicles in the second charging control. With this configuration, the plurality of charging vehicles can be charged evenly by the second charging control.

[0009] Here, the charger includes a charging connector that is connected to a charging port provided on each of the multiple electric vehicles. In the control device according to the above aspect, preferably, when the multiple electric vehicles include multiple charging vehicles that are charged under the second charging control, the processor preferentially charges, in the second charging control, a charging vehicle that has had its charging connector connected earlier among the multiple charging vehicles. With this configuration, the amount of stored electricity in the charging vehicle that has had its charging connector connected earlier can be preferentially increased by the second charging control.

[0010] Here, it is assumed that each of the multiple charging vehicles is set to be charged by the second charging control until the stored power amount reaches a second target value that is larger than the first target value. In the control device according to the above aspect, preferably, when the multiple electric vehicles include multiple charging vehicles that are charged by the second charging control, the processor preferentially charges, in the second charging control, a charging vehicle among the multiple charging vehicles that has a large difference between the stored power amount after the first charging control and the second target value. With this configuration, the stored power amount of each of the multiple charging vehicles can be easily brought close to the second target value.

[0011] In the control device according to the above aspect, preferably, when the plurality of electric vehicles includes a plurality of charging vehicles that are charged in the second charging control, the processor, in the second charging control, preferentially charges a charging vehicle that has an earlier scheduled departure time from the charger among the plurality of charging vehicles. With this configuration, it is possible to prevent the charging of the charging vehicle that has an earlier scheduled departure time from being insufficiently performed. Effect of the Invention

[0012] According to the present disclosure, it is possible to further increase the amount of stored electricity in a plurality of electric vehicles while ensuring at least an amount of charge that enables each of the electric vehicles to travel to its own base. [Brief description of the drawings]

[0013] [Figure 1] FIG. 1 is a diagram illustrating a configuration of a system according to an embodiment. [Diagram 2] FIG. 2 is a block diagram illustrating functional features of a processor according to one embodiment. [Diagram 3] FIG. 11 is a sequence diagram showing control in a system according to an embodiment. [Figure 4] FIG. 11 is a sequence diagram showing control in a system according to a first modified example of an embodiment. [Diagram 5] FIG. 11 is a sequence diagram showing control in a system according to a second modified example of an embodiment. [Figure 6] FIG. 13 is a sequence diagram showing control in a system according to a third modified example of an embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are designated by the same reference characters and the description thereof will not be repeated.

[0015] 1 is a diagram showing the configuration of a system 1 according to this embodiment. The system 1 includes a server 100, a management server 210, an EVSE (Electric Vehicle Supply Equipment) 220, and a plurality of electric vehicles 10. The server 100 and the EVSE 220 are examples of the "control device" and the "charger" of the present disclosure, respectively.

[0016] 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).

[0017] The electric vehicle 10 includes a battery 11, a communication unit 12, and an inlet 13. The battery 11 stores 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 below). The electric vehicle 10 is also configured to be able to be electrically connected to the EVSE 220 by connecting a charging connector 221 described below to the inlet 13. Note that, hereinafter, connecting the charging connector 221 to the electric vehicle 10 (inlet 13) may be referred to as being plugged in. Note that the inlet 13 is an example of a "charging port" in this disclosure.

[0018] EVSE220 refers to a vehicle power supply facility. EVSE220 is installed, for example, in a parking lot of accommodation facility 200. For simplification, only one EVSE220 is shown in FIG. 1, but in reality, multiple EVSE220 are installed. EVSE220 includes a charging connector 221. With charging connector 221 connected to electric vehicle 10 (inlet 13), charging is performed from EVSE220 to electric vehicle 10.

[0019] Electric power stored in a 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 power of the power storage device 201 is also consumed when home appliances and the like are used in the accommodation facility 200.

[0020] The power storage device 201 is supplied with power from a power grid (not shown). The power storage device 201 may be supplied with power from a solar power generation system (not shown) installed in the accommodation facility 200. The power storage device 201 may be supplied with power from the electric vehicle 10 through the EVSE 220.

[0021] 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, an upper limit value (kW) of power per unit time that can be extracted from the power storage device 201 is determined in advance by contract. Hereinafter, the above upper limit value may be referred to as contracted power. The management server 210 calculates the surplus power per unit time that can be extracted from the power storage device 201 from the relationship between the above upper limit value (contracted power) and the power consumption. Information on the calculated surplus power is transmitted from the management server 210 to the server 100 (communication device 130 described later). The above surplus power may be calculated in the server 100.

[0022] 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 the "acquisition unit" of the present disclosure.

[0023] The processor 110 controls charging by the EVSE 220 of each of the multiple electric vehicles 10. Details will be described later with reference to FIG.

[0024] The storage device 120 stores information used by the programs (for example, maps, formulas, and various parameters) in addition to the programs executed by the processor 110. The storage device 120 stores information on a plurality of registered electric vehicles 10, information on each registered user, information on registered EVSEs 220, and information on registered management servers 210, which are distinguished by identification information (ID).

[0025] 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 multiple electric vehicles 10 (communication units 12).

[0026] The communication device 130 receives information on the required amount of power from each of the multiple electric vehicles 10. The required amount of power means the amount of power required for each electric vehicle 10 to move from the EVSE 220 to the base 20 (the home of the user of each electric vehicle 10 in FIG. 1). The communication device 130 receives information on the required amount of power from the electric vehicle 10 when the electric vehicle 10 is connected to the EVSE 220 or arrives at the accommodation facility 200. Note that in this embodiment, the required amount of power is the magnitude of the SOC (State Of Charge) required to move from the EVSE 220 to the base 20. Note that the required amount of power according to this embodiment is an example of the "first target value based on the required amount of power" of the present disclosure.

[0027] The information on the required amount of power may include, for example, at least one of the following: location information of base 20, information on the power consumption when moving from base 20 to EVSE 220, information on the distance traveled from base 20 to EVSE 220, information on the catalog value of the power consumption of the electric vehicle, and information on the amount of change in SOC when moving from base 20 to EVSE 220. Processor 110 (required power calculation unit 111 described below) calculates the amount of power required by each electric vehicle 10 based on the above information on the required amount of power. Processor 110 may acquire the required amount of power calculated for electric vehicle 10 via communication device 130.

[0028] 2, the processor 110 includes a required power calculation unit 111, a power margin determination unit 112, a charging plan setting unit 113, and a charging command unit 114. Each of the required power calculation unit 111, the power margin determination unit 112, the charging plan setting unit 113, and the charging command unit 114 represents software in which functional features of the processor 110 are divided into blocks. Each function will be described later.

[0029] The processor 110 (required power calculation unit 111) calculates the amount of power required for each of the multiple electric vehicles 10 based on the information on the required amount of power received by the communication device 130. The information on the calculated required amount of power may be stored in the storage device 120 in association with information (ID) of the electric vehicle 10.

[0030] The processor 110 (power margin determination unit 112) determines whether or not there is a margin in the power that can be used to charge the electric vehicle 10. Specifically, the processor 110 (power margin determination unit 112) makes the above prediction based on the margin (kW) of power per unit time that can be extracted from the power storage device 201. For example, if the margin (kW) is smaller than a reference value of the charging power (kW) per unit time of the electric vehicle 10, it is determined that there is no margin in the power. The margin (kW) may be calculated in the server 100. The above determination may be made without using the reference value. For example, if the margin (kW) is smaller than the charging power (maximum output) of the newly plugged-in electric vehicle 10, it may be determined that there is no margin in the power.

[0031] The processor 110 (charging plan setting unit 113) sets a charging plan for each of the multiple electric vehicles 10. The processor 110 (charging plan setting unit 113) sets the charging plan based on the amount of required power calculated by the required power calculation unit 111 and the determination result by the power margin determination unit 112. Details will be described later.

[0032] The processor 110 (charging command unit 114) generates a command signal for commanding 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. Charging between the electric vehicle 10 and the EVSE 220 is controlled based on the command signal.

[0033] In a conventional system, when multiple electric vehicles are charged in sequence, there is a risk that the charge amount of the electric vehicle that is charged later will be limited until the amount of stored power of the electric vehicle that is charged first reaches a predetermined value (for example, fully charged). In this case, the electric vehicle that is charged later may not be sufficiently charged and may not be able to move to its own base (charging base). In addition, it is thought that there may be electric vehicles among the electric vehicles that wish to be charged with more power than is required to move to their own base.

[0034] Therefore, in this embodiment, the server 100 executes charging control (first charging control) so that the amount of stored power in each of the multiple electric vehicles 10 reaches the required amount of power, and executes charging control (second charging control) to further charge each of the multiple electric vehicles 10 after the first charging control. Details will be described with reference to the sequence diagram in FIG.

[0035] (Charging control sequence) Next, a charging control sequence by the server 100, the management server 210, and the electric vehicle 10 will be described with reference to FIG.

[0036] In step S20, each of the multiple electric vehicles 10 transmits information related to the required amount of power to the server 100 (communication device 130).

[0037] In step S30, the management server 210 transmits information on the power reserve (kW) per unit time that can be extracted from the power storage device 201 to the server 100 (communication device 130). The information on the reserve includes at least one of the current value of the reserve and a predicted value of the reserve after a predetermined time (e.g., 10 minutes). The process of step S30 is executed periodically at predetermined time intervals (e.g., every minute).

[0038] In step S10, the server 100 (required power calculation unit 111) calculates the amount of power required for each electric vehicle 10 based on the information transmitted from each electric vehicle 10 in step S20. The process of step S10 is executed every time information on the amount of power required is transmitted from an electric vehicle 10.

[0039] In step S11, the server 100 (power margin determination unit 112) determines whether the power margin in the power storage device 201 has changed (or is predicted to change). Specifically, the server 100 executes the process of step S11 based on the information on the power margin transmitted in step S30. The case where the power margin changes is considered to be a case where the number of electric vehicles 10 to be charged has changed (is predicted to change) or the amount of power usage in the accommodation facility 200 has changed (is predicted to change). Note that the prediction of the number of electric vehicles 10 to be charged may be performed based on the reservation status of charging, history information of past charging, etc. Also, the prediction of the amount of power usage in the accommodation facility 200 may be performed based on history information of past power usage, etc. If it is determined that there is a change in the power margin (Yes in S11), the process proceeds to step S12. If it is determined that there is no change in the power margin (No in S11), the process ends.

[0040] In step S12, the server 100 (power margin determination unit 112) determines whether or not there is a margin in the power storage device 201. If there is no margin (Yes in S12), the process proceeds to step S13. If there is a margin (No in S12), the process ends.

[0041] In step S13, the server 100 (charging command unit 114) preferentially executes (continues) charging of the electric vehicle 10 that was plugged in earlier, and stops charging of the electric vehicle 10 that was plugged in later. For example, the contracted power of the power storage device 201 is 10 kW. The charging power (maximum output) of the electric vehicles 10 is 3 kW, 2 kW, 2 kW, 3 kW, etc., starting from the electric vehicle 10 that was plugged in earlier. In this case, the first to fourth vehicles, whose total charging power is 10 kW or less, are charged, and charging of the fifth and subsequent vehicles is stopped (put into a charging standby state).

[0042] In step S14, the server 100 (charging command unit 114) stops charging the electric vehicle 10 whose SOC has reached the required power amount. Furthermore, the server 100 (charging command unit 114) starts charging the electric vehicles 10 waiting to be charged by the amount of the increase in the remaining power caused by the stopping of the charging of the electric vehicle 10. Charging of the electric vehicles 10 waiting to be charged is also started preferentially starting from the electric vehicle 10 that was plugged in first.

[0043] In step S15, the server 100 (processor 110) determines whether the stored power amount of all of the electric vehicles 10 has reached the required power amount. If the stored power amount of all of the electric vehicles 10 has reached the required power amount (Yes in S15), the process proceeds to step S16. If there is an electric vehicle 10 whose stored power amount has not reached the required power amount (No in S15), the process returns to step S14. The charging control in steps S13 to S15 is an example of a "first charging control" in the present disclosure.

[0044] In step S16, the server 100 (the charging command unit 114) executes charging control so that charging power is distributed evenly to all the electric vehicles 10. Specifically, when the contracted power of the power storage device 201 is 10 kW and five electric vehicles 10 are plugged in, the charging power of each electric vehicle 10 is set to 2 kW. If an electric vehicle 10 is present whose upper limit of charging power is restricted due to a relatively high SOC or the like, the charging power of each of the other multiple (assumed to be N) electric vehicles 10 is set to (contracted power-above upper limit) / N (kW). If a plurality of electric vehicles 10 are present whose upper limit of charging power is restricted, the charging power of each of the other multiple electric vehicles 10 is set to (contracted power-sum of above upper limit) / N (kW). Each of the multiple electric vehicles 10 to which charging is performed in step S16 is an example of the "charging vehicle" of the present disclosure.

[0045] In step S17, the server 100 (charging command unit 114) stops charging the electric vehicle 10 that has reached full charge. Charging of the electric vehicle 10 for which a target value for the charge amount (e.g., SOC=80%) has been set in advance is stopped when the amount of stored electricity reaches the target value. The charging control in steps S16 and S17 is an example of the "second charging control" in the present disclosure. Also, full charge (target value) is an example of the "second target value" in the present disclosure.

[0046] In step S18, the server 100 (processor 110) determines whether all of the electric vehicles 10 have been charged to full charge (target value). If all of the electric vehicles 10 have been charged to full charge (target value) (Yes in S18), the process ends. If there is an electric vehicle 10 that has not been charged to full charge (target value) (No in S18), the process returns to step S16.

[0047] The charging by the server 100 (the charging command unit 114) is executed based on the charging plan set in the charging plan setting unit 113.

[0048] As described above, in this embodiment, the server 100 (processor 110) executes charging control (first charging control) so that the amount of stored power in each of the multiple electric vehicles 10 reaches the required amount of power, and executes charging control (second charging control) to further charge each of the multiple electric vehicles 10 after the first charging control. Thereby, the amount of stored power in each of the multiple electric vehicles 10 can be made at least equal to the required amount of power by the first charging control. As a result, it is possible to prevent the electric vehicle 10 from being unable to return to its own base due to insufficient charging. Furthermore, since the second charging control is executed even after the first charging control, the amount of stored power in each electric vehicle 10 can be made higher than the required amount of power. Moreover, since the first charging control automatically charges at least up to the required amount of power, it is possible to omit the user's effort to set a set value such as the amount of charge in advance.

[0049] In this embodiment, after charging is performed until the amount of stored power in each of the multiple electric vehicles 10 reaches the required power amount, the server 100 (processor 110) performs control to equalize the charging power allocated to each of the multiple electric vehicles 10. This makes it possible to prevent differences in the amount of stored power from occurring among the electric vehicles 10.

[0050] In the above embodiment, an example has been shown in which charging power is evenly distributed in charging after the amount of stored power in each of the electric vehicles 10 reaches the required amount of power, but the present disclosure is not limited to this. Modifications are shown in each of Figs. 4 to 6.

[0051] In the modification shown in FIG. 4, the process of step S116 is executed instead of the process of step S16 (see FIG. 3) in the above embodiment. In step S116, the electric vehicle 10 that was plugged in earlier is preferentially charged. For example, the contracted power of the power storage device 201 is 10 kW, and the charging power (maximum output) of the electric vehicles 10 from the earliest plugged in is 3 kWh, 2 kW, 2 kW, 2 kW, 3 kW, and so on. In this case, the first to fourth vehicles, whose total charging power is 10 kW or less, are charged, and charging of the fifth and subsequent vehicles is stopped (put into a charging standby state). The other steps are the same as those of the above embodiment.

[0052] In the modified example shown in FIG. 5, the process of step S216 is executed instead of the process of step S16 (see FIG. 3) in the above embodiment. In step S216, the electric vehicle 10 having a large difference between the amount of stored power (required amount of power) after step S15 and the fully charged state (target value) is charged preferentially. For example, the contracted power of the power storage device 201 is 10 kW, and the charging power (maximum output) of the electric vehicles 10 is 3 kWh, 2 kW, 2 kW, 3 kW, and so on, starting from the electric vehicle 10 having the largest difference. In this case, the first to fourth vehicles having a total charging power of 10 kW or less are charged, and charging of the fifth and subsequent vehicles is stopped (put into a charging standby state). The other steps are the same as those of the above embodiment.

[0053] In the modification shown in FIG. 6, the process of step S316 is executed instead of step S16 (see FIG. 3) in the above embodiment. In step S316, the electric vehicle 10 with the earliest scheduled departure time from the EVSE 220 is charged preferentially. For example, the contracted power of the power storage device 201 is 10 kW, and the charging power (maximum output) of the electric vehicles 10 is 3 kWh, 2 kW, 2 kW, 3 kW, and so on, starting from the electric vehicle 10 with the earliest scheduled departure time. In this case, the first to fourth vehicles with a total charging power of 10 kW or less are charged, and charging of the fifth and subsequent vehicles is stopped (set to a charging standby state). The other steps are the same as those of the above embodiment.

[0054] In the above embodiment, as shown in Fig. 3, when it is determined in step S12 that the power storage device 201 has no spare power, the process in step S13 and thereafter is executed, but the present disclosure is not limited to this. The process in step S13 and thereafter may be executed without executing the determination process in step S12 (and S11).

[0055] In the above embodiment, after the amount of stored power in each of the multiple electric vehicles 10 reaches the required amount of power, each of the multiple electric vehicles 10 is further charged to full charge (target value), but the present disclosure is not limited to this. Only one of the multiple electric vehicles 10 may be charged to full charge (target value).

[0056] In the above embodiment and the modified example shown in Fig. 4, an example has been shown in which the electric vehicle 10 that is plugged in first is given priority for charging, but the present disclosure is not limited to this. For example, when the electric vehicle 10 performs contactless charging, the above priority may be determined based on the timing when the electric vehicle 10 stops in a charging area. Also, the above priority may be determined based on the timing when the electric vehicle 10 arrives at a parking lot or the like of the accommodation facility 200.

[0057] In the above embodiment, an example has been described in which the base 20 is the home of the user of the electric vehicle 10, but the present disclosure is not limited to this. The base may be a facility where the electric vehicle 10 was previously charged. In addition, the base may be a charging facility that is closest to the EVSE 220.

[0058] In the above embodiment, an example has been shown in which each of the multiple electric vehicles 10 is charged up to the required amount of power, but the present disclosure is not limited to this. For example, each of the multiple electric vehicles 10 may be charged up to a value obtained by adding a predetermined amount of power to the required amount of power (for example, SOC corresponding to the required amount of power + 10%). In this case, the above value obtained by adding the predetermined amount of power to the required amount of power is an example of the "first target value" of the present disclosure.

[0059] In the above embodiment, an example has been described in which the EVSE 220 (power storage device 201) is provided in the accommodation facility 200, but the present disclosure is not limited to this. The EVSE 220 (power storage device 201) may be provided in a facility other than the accommodation facility 200 (for example, a theme park, a shopping mall, etc.).

[0060] In the above embodiment, an example has been shown in which charging of an electric vehicle 10 whose stored power amount reaches the required power amount relatively early is stopped until the stored power amounts of all of the electric vehicles 10 reach the required power amount, but the present disclosure is not limited to this. For example, charging of an electric vehicle 10 whose stored power amount reaches the required power amount relatively early may be resumed before the stored power amounts of all of the electric vehicles 10 reach the required power amount.

[0061] In the above embodiment, an example has been described in which the charging control is executed based on the power state (presence or absence of reserve power) of the power storage device 201, but the present disclosure is not limited to this. The charging control may be executed based on the power state (presence or absence of reserve power) of the power grid that supplies power to the EVSE 220.

[0062] In the above embodiment, an example has been shown in which the presence or absence of a power surplus is determined based on the relationship between the power that can be extracted per unit time from the power storage device 201 (contracted power) and the total amount of charging power for each of the electric vehicles 10, but the present disclosure is not limited to this. For example, the presence or absence of a power surplus may be determined based on the amount of surplus power stored in the power storage device 201.

[0063] The embodiments disclosed herein should be considered to be illustrative and not restrictive in all respects. The scope of the present disclosure is defined by the claims, not by the description of the embodiments described above, and is intended to include all modifications within the meaning and scope of the claims. [Explanation of symbols]

[0064] 10 electric vehicle (charging vehicle), 13 inlet (charging port), 20 base, 100 server (control device), 110 processor, 130 communication device (acquisition unit), 220 EVSE (charger), 221 charging connector.

Claims

1. A control device for controlling charging of a plurality of electric vehicles by a charger, an acquisition unit that acquires information regarding an amount of power required for the plurality of electric vehicles to move from the charger to each of the base stations; a processor that controls charging of each of the plurality of electric vehicles by the charger; The processor, A first charging control is executed so that an amount of stored power of each of the plurality of electric vehicles reaches a first target value based on the required amount of power, The control device executes, after the first charging control, a second charging control for charging at least one of the plurality of electric vehicles.

2. When the plurality of electric vehicles includes a plurality of charging vehicles that are charged under the second charging control, The control device according to claim 1 , wherein the processor performs control in the second charging control to equalize charging power allocated from the charger to each of the plurality of charging vehicles.

3. 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 includes a plurality of charging vehicles that are charged under the second charging control, The control device according to claim 1 , wherein, in the second charging control, the processor preferentially charges a vehicle among the plurality of vehicles that has had the charging connector connected earlier.

4. each of the plurality of electric vehicles is set to be charged by the second charging control until the stored power amount reaches a second target value that is greater than the first target value; When the plurality of electric vehicles includes a plurality of charging vehicles that are charged under the second charging control, 2 . The control device according to claim 1 , wherein, in the second charging control, the processor preferentially charges, among the plurality of vehicles, a vehicle having a large difference between the stored power amount after the first charging control and the second target value.

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

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