Charging management system and charging management method for electric vehicles at charging facilities

Abstract

To provide a management system for electric vehicles in charging facility capable of improving the utilization rate of electric vehicles provided in electric vehicle rental service.SOLUTION: The charging management system for electric vehicles in charging facility charges electric cars up to a charge complete SOC at a charging station with one or multiple charging devices, and moves the charged electric car that has been charged to the charge complete SOC from the charging station to a waiting area where vehicles waiting to be rented are parked. In response to the fact that the number of charged electric cars waiting in the waiting area has become less than the predetermined number, the charge management system switches the charge complete SOC to a value lower than the value when the number of charged electric cars is more than the predetermined number.SELECTED DRAWING: Figure 7

Description

[Technical field]

[0001] The present disclosure relates to a charging management system and a charging management method for electric vehicles in a charging facility suitable for use in electric vehicle rental services such as car sharing services and car rental services. [Background technology]

[0002] Patent Document 1 discloses a technology for improving the operating rate of electric vehicles in car sharing services or car rental services that lend out electric vehicles by skillfully scheduling charging using a rapid charger and charging using a normal charger. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2014-039409 A Summary of the Invention [Problem to be solved by the invention]

[0004] In an electric vehicle rental service, it is necessary to charge returned electric vehicles so that they can be rented out again. However, since charging takes time according to the charging capacity, if electric vehicles are always charged to a fully charged state, the operating rate of electric vehicles will decrease, and there is a risk of a shortage of vehicles available for rental. The above conventional technology has room for improvement in terms of improving the operating rate of electric vehicles.

[0005] The present disclosure has been made in view of the above-mentioned problems and has an object to provide a technique that can improve the operation rate of electric vehicles provided in an electric vehicle rental service. [Means for solving the problem]

[0006] The present disclosure provides a charging management system for electric vehicles in a charging facility. The charging facility includes a charging station where one or more charging devices are installed, and a waiting area where vehicles waiting to be rented are parked. The charging management system of the present disclosure is configured to perform the following: - Charging electric vehicles at charging stations up to the full SOC - Moving a fully charged electric vehicle that has been charged to the charging completion SOC from the charging station to a waiting area. When the number of charged electric vehicles waiting in the waiting area falls below a certain number, the charging completion SOC is changed to a value lower than the value when the number of charged electric vehicles is greater than the certain number.

[0007] The charging management system of the present disclosure may be further configured to, in response to the return of a returning electric vehicle having a higher SOC than a charging electric vehicle being charged at the charging site when the charging site is full, replace the charging electric vehicle with the returned electric vehicle. In this case, the charging electric vehicle having the lowest SOC may be replaced with the returned electric vehicle. The charging management system of the present disclosure may further be configured to, in response to an availability of a charging site, move the charged electric vehicle having the lowest SOC from the waiting site to the charging site.

[0008] The present disclosure provides a method for managing charging of electric vehicles in a charging facility. The charging facility includes a charging station where one or more charging devices are installed, and a waiting area where vehicles waiting to be rented are parked. The charging management method of the present disclosure includes the following steps. - Charging electric vehicles at charging stations up to the full SOC - Moving a fully charged electric vehicle that has been charged to the charging completion SOC from the charging station to a waiting area. When the number of charged electric vehicles waiting in the waiting area falls below a certain number, the charging completion SOC is changed to a value lower than the value when the number of charged electric vehicles is greater than the certain number. Effect of the Invention

[0009] According to the charging management system and charging management method for electric vehicles at a charging facility disclosed herein, when the number of charged electric vehicles waiting at the waiting area decreases, the charging completion SOC when charging electric vehicles at the charging area is lowered. When the charging completion SOC is lowered, charging is completed in a short time, so that charged electric vehicles can be supplied to the waiting area more quickly. In other words, the operation rate of electric vehicles provided for the electric vehicle rental service can be improved. [Brief description of the drawings]

[0010] [Figure 1] 1 is a schematic diagram of a charging facility to which a charging management system according to an embodiment of the present disclosure is applied. [Diagram 2] 1 is a block diagram showing a configuration of a charge management system according to an embodiment of the present disclosure. FIG. [Diagram 3] 1 is a schematic diagram for explaining switching of a charge completion SOC executed by a charge management system according to an embodiment of the present disclosure. FIG. [Figure 4] 1 is a schematic diagram for explaining switching of a charge completion SOC executed by a charge management system according to an embodiment of the present disclosure. FIG. [Diagram 5] 1 is a schematic diagram for explaining a charge vehicle switching instruction executed by a charge management system according to an embodiment of the present disclosure; FIG. [Figure 6] FIG. 2 is a schematic diagram for explaining a recharging instruction for a charged vehicle executed by a charging management system according to an embodiment of the present disclosure. [Figure 7] 4 is a flowchart for explaining a charge management method according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, the embodiments of the present disclosure will be described with reference to the drawings. However, when the number, quantity, amount, range, etc. of each element is mentioned in the embodiments shown below, the idea of ​​the present disclosure is not limited to the mentioned number unless it is specifically stated or clearly specified in principle. Furthermore, the structures etc. described in the embodiments shown below are not necessarily essential to the idea of ​​the present disclosure unless it is specifically stated or clearly specified in principle.

[0012] 1. Configuration of charging facilities and charging management system FIG. 1 is a schematic diagram of a charging facility 100 to which a charging management system 40 according to an embodiment of the present disclosure is applied. The charging facility 100 is a facility that charges electric vehicles 2 provided for a rental service to a state where they can be rented out, and keeps electric vehicles 2 waiting to be rented out. The rental service of this embodiment is, for example, a car sharing service. The electric vehicles 2 provided for the rental service are EVs having a rechargeable battery, specifically, BEVs and PHEVs. However, it is assumed that the electric vehicles 2 provided for the rental service of this embodiment have the same specifications, including the battery capacity and charging output.

[0013] The charging facility 100 includes a return site 10 where returned electric vehicles 2 are temporarily parked, a charging site 20 where the electric vehicles 2 are charged, and a waiting site 30 where electric vehicles 2 waiting to be rented are parked. The charging site 20 includes a plurality of charging parking slots 22 in which charging devices 24 are provided. The charging devices 24 provided in the charging parking slots 22 may be of a contact type that connects a cable to the electric vehicle 2 to charge, or may be of a non-contact type that transmits power wirelessly from a power transmission coil on the ground side to a power receiving coil on the electric vehicle 2 side. The charging devices 24 may be quick charging devices or normal charging devices. The waiting site 30 includes a plurality of waiting parking slots 32.

[0014] The waiting parking slots 32 are provided in the same number as the electric vehicles 2 provided in the rental service. In this embodiment, ten waiting parking slots 32 are provided in the waiting area 30. Meanwhile, the number of charging parking slots 22 is less than the number of waiting parking slots 32. Ideally, if the charging parking slots 22 are provided in the same number as the electric vehicles 2 provided in the rental service, the waiting area 30 is not necessary. However, in order to do so, it is necessary to prepare charging devices 24 in the same number as the electric vehicles 2, which increases the facility cost. Therefore, in the charging facility 100, the charging parking slots 22 are dedicated to charging, and the electric vehicles that have completed charging are moved to the waiting parking slots 32, thereby enabling operation with a small number of charging devices 24. In this embodiment, three charging parking slots 22 are provided in the charging area 20.

[0015] The charging management system 40 of this embodiment performs charging management of the electric vehicles 2 in the charging facility 100 as described above. The charging management system 40 includes a management device 42 and a storage device 44. The management device 42 is a computer capable of communicating with the electric vehicles 2 in the charging facility 100 via wireless communication. The management device 42 manages the SOC (State Of Charge) of each electric vehicle 2 in the charging facility 100 and the parking location of each electric vehicle 2. The storage device 44 is a storage device built into or external to the management device 42, or a data server connected to the management device 42 via a network.

[0016] 2 is a block diagram showing a configuration of the charge management system 40. A management device 42 constituting the charge management system 40 includes at least one processor 42a (hereinafter simply referred to as processor 42a) and at least one memory 42b (hereinafter simply referred to as memory 42b) coupled to the processor 42a. At least one program 42c (hereinafter simply referred to as program 42c) executable by the processor 42a is stored in the memory 42b.

[0017] The program 42c includes a program that causes the management device 42 to manage the SOC of the electric vehicle 2 in the charging facility 100. When the program is executed by the processor 42a, the management device 42 (processor 42a) executes each process of switching the charging completion SOC, issuing an instruction to switch the charging vehicle, and issuing an instruction to recharge the charged vehicle.

[0018] A database 46 is stored in the storage device 44 constituting the charging management system 40. The database 46 records the SOC of each electric vehicle 2 in the charging facility 100. The database 46 also records the parking location of each electric vehicle 2. The management device 42 periodically acquires the latest SOC from each electric vehicle 2 in the charging facility 100 by wireless communication and updates the SOC stored in the database 46. Also, the management device 42 updates the parking location stored in the database 46 based on the position information of the electric vehicle 2 in the charging facility 100. The SOC and parking location of each electric vehicle 2 stored in the database 46 are used by the management device 42 in the processes of switching the charging completion SOC, issuing an instruction to switch the charging vehicle, and issuing an instruction to recharge the charged vehicle.

[0019] 2.Charging management system functions The functions of the charge management system 40 will be described below with reference to FIGS.

[0020] 3 and 4 are schematic diagrams for explaining switching of the charging completion SOC, which is one of the processes executed by the charging management system 40. The charging completion SOC is the SOC at which it is determined that charging of the electric vehicle 2 is completed when the electric vehicle 2 is charged by the charging device 24. Therefore, the charging completion SOC is the upper limit of the SOC of the electric vehicle 2. The charging completion SOC is set in the electric vehicle 2 by communication from the charging management system 40. The charging management system 40 switches the value of the charging completion SOC between a normal value and an emergency response value depending on the number of charged electric vehicles 2 waiting in the waiting area 30.

[0021] The normal value of the charge completion SOC is set to a value that allows the battery of the electric vehicle 2 to be used efficiently while suppressing deterioration. In this embodiment, as an example, the normal value of the charge completion SOC is set to 90%. When the number of charged electric vehicles 2 waiting in the waiting area 30 exceeds a first predetermined number, the charge management system 40 sets the charge completion SOC to the normal value. The first predetermined number is set, for example, to a number that can withstand the demand for rental of electric vehicles 2, that is, the maximum number of vehicles that may be rented out at the same time. In this embodiment, as an example, the first predetermined number is set to 5 vehicles.

[0022] In the example shown in Fig. 3, the number of charged electric vehicles 2 waiting in the waiting area 30 is six, which is more than the first predetermined number. Therefore, the charging completion SOC is set to a normal value of 90%. When the SOC of an electric vehicle 2 being charged in the charging area 20 reaches 90%, charging from the charging device 24 is stopped. The charged electric vehicle 2 that has been charged to an SOC of 90% is moved from the charging parking slot 22 in the charging area 20 to a waiting parking slot 32 in the waiting area 30.

[0023] In the example shown in FIG. 4, the number of charged electric vehicles 2 waiting in the waiting area 30 is three, which is less than the first predetermined number. In this case, the charge management system 40 switches the value of the charge completion SOC from the normal value to an emergency response value. The emergency response value is set to a value lower than the normal value. By lowering the charge completion SOC, charging of the electric vehicles 2 is completed in a short time. If the time until charging of the electric vehicles 2 is completed is shortened, electric vehicles 2 that can be provided for the rental service can be supplied to the waiting area 30 more quickly. In other words, the availability rate of electric vehicles 2 provided for the rental service can be improved.

[0024] The lower the charging completion SOC, the shorter the time until the charging of the electric vehicle 2 is completed. However, if the charging completion SOC is excessively low, a mileage that can withstand the user's use cannot be ensured. For this reason, a lower limit mileage that can withstand the user's use is estimated based on the usage distance declared by the user, the distance calculated from the usage time declared by the user, the average usage distance of the user, etc., and the SOC that can ensure the lower limit mileage is set as the emergency response value of the charging completion SOC. In this embodiment, as an example, the emergency response value of the charging completion SOC is 70%. In the example shown in FIG. 4, when the SOC of the electric vehicle 2 being charged in the charging site 20 reaches 70%, charging from the charging device 24 is stopped. The charged electric vehicle 2 that has been charged to SOC 70% is moved from the charging parking slot 22 in the charging site 20 to the waiting parking slot 32 in the waiting site 30.

[0025] Next, a charge vehicle exchange instruction, which is one of the processes executed by the charge management system 40, will be described with reference to FIG.

[0026] As described above, the number of charging parking slots 22 in the charging site 20 is smaller than the number of electric vehicles 2 provided for the rental service. For this reason, the charging parking slots 22 may become full with electric vehicles 2 being charged. In that case, a newly returned electric vehicle 2 must wait at the return site 10 until a charging parking slot 22 becomes available. However, in order to improve the utilization rate of electric vehicles 2 provided for the rental service, it is necessary to supply electric vehicles 2 that can be provided for the rental service to the waiting site 30 as quickly as possible.

[0027] Therefore, in order to give priority to an electric vehicle 2 that completes charging sooner and is able to use the charging parking frame 22, the charging management system 40 replaces the newly returned electric vehicle 2 that is being charged with the returned electric vehicle 2 if the SOC of the newly returned electric vehicle 2 is higher than the SOC of the electric vehicle 2 that is being charged. By performing such a replacement, the time until charging is completed can be shortened compared to continuing to charge the electric vehicle 2 with a lower SOC. In other words, the operating rate of the electric vehicles 2 provided for the rental service can be improved.

[0028] However, the swapping of electric vehicles 2 is performed when there is an insufficient number of charged electric vehicles 2 waiting in the waiting area 30. If there is no shortage of charged electric vehicles 2, swapping of electric vehicles 2 is not performed in order to reduce unnecessary operations as much as possible. When the number of charged electric vehicles 2 waiting in the waiting area 30 is equal to or less than a second predetermined number, the charging management system 40 issues an instruction to swap the charging vehicles. It is preferable that the second predetermined number is equal to or less than the first predetermined number. In this embodiment, as an example, the second predetermined number is set to five, the same as the first predetermined number.

[0029] In the example shown in Fig. 5, three electric vehicles 2B, 2C, and 2D are being charged at the charging site 20. Assume that a new electric vehicle 2A is returned there. At the time of return of the electric vehicle 2A, the SOCs of the electric vehicles 2B, 2C, and 2D being charged are 40%, 65%, and 30%, respectively, whereas the SOC of the returned electric vehicle 2A is 60%. In this case, the electric vehicle 2 can be supplied to the waiting site 30 more quickly by prioritizing the charging of the electric vehicle 2A rather than continuing to charge the electric vehicle 2B or the electric vehicle 2D.

[0030] In order to prioritize charging of electric vehicle 2A, either electric vehicle 2B or electric vehicle 2D, which has a lower SOC than electric vehicle 2A, may be used for replacement. However, taking into consideration the charging completion time of the electric vehicle that will be fully charged next after electric vehicle 2A, it is preferable to replace electric vehicle 2A with the electric vehicle with the lower SOC. In the example shown in FIG. 5, the charge management system 40 issues an instruction to replace returned electric vehicle 2A with electric vehicle 2D, which has the lowest SOC, among electric vehicles 2B and 2D, which have lower SOCs than returned electric vehicle 2A. This makes it possible to shorten the time until charging is completed of the electric vehicle that will be fully charged next after electric vehicle 2A.

[0031] Next, a process of issuing an instruction to recharge a charged vehicle, which is one of the processes executed by the charge management system 40, will be described with reference to FIG.

[0032] As described above, in this embodiment, when the number of charged electric vehicles 2 waiting in the waiting area 30 falls below the first predetermined number, the charge completion SOC is switched from the normal value to the emergency response value. For this reason, the charged electric vehicles 2 may include an electric vehicle 2 with a lower SOC than the other electric vehicles 2. Even if an electric vehicle 2 is fully charged, the SOC of the electric vehicle 2 decreases little by little due to natural discharge while waiting in the waiting area 30. However, from the viewpoint of user satisfaction in the rental service, it is desirable to rent an electric vehicle 2 that is as close to fully charged as possible to a user.

[0033] Therefore, when a sufficient number of charged electric vehicles 2 are waiting in the waiting area 30 and there are vacant charging parking slots 22 in the charging area 20, the charging management system 40 issues an instruction to recharge the charged electric vehicles 2. Specifically, when the number of charged electric vehicles 2 waiting in the waiting area 30 exceeds a third predetermined number, the charging management system 40 issues a recharge instruction. It is preferable that the third predetermined number is equal to or greater than the first predetermined number. In this embodiment, as an example, the third predetermined number is five, which is the same as the first predetermined number. The electric vehicle 2 to be recharged is the electric vehicle 2 having the lowest SOC among the electric vehicles waiting in the waiting area 30.

[0034] In the example shown in FIG. 6, six charged electric vehicles 2H, 2J, 2K, 2L, 2M, and 2N, which is more than the third predetermined number, are waiting in the waiting area 30. The charging area 20 was full with three electric vehicles 2E, 2F, and 2G, but the charging of the electric vehicle 2F was completed and the electric vehicle 2F moved to the waiting parking frame 32 in the waiting area 30, so that the charging parking frame 22 becomes available. The charging management system 40 issues an instruction to move the electric vehicle 2H, which has the lowest SOC among the charged electric vehicles 2H, 2J, 2K, 2L, 2M, and 2N, to the charging parking frame 22 and recharge it. At this time, a normal value is set as the charging completion SOC for the electric vehicle 2H. This makes it possible to lend the electric vehicle 2H to a user in a state closer to full charge.

[0035] 3.Charging management method using the charging management system Next, the charging management method by the charging management system 40 described above will be described with reference to the flowchart in Fig. 7. First, the user returns the electric vehicle 2 to the return site 10 (step S101). Upon receiving the return of the electric vehicle 2, the charging management system 40 determines whether the number of charged electric vehicles 2 waiting in the waiting site 30 is equal to or less than a first predetermined number (step S102). If the number of waiting vehicles is equal to or less than the first predetermined number, the charging management system 40 sets the charging completion SOC to an emergency response value of 70% (step S103), and if the number of waiting vehicles is more than the first predetermined number, sets the charging completion SOC to a normal value of 90% (step S104).

[0036] Next, the charging management system 40 calculates the remaining number of charging parking frames 22 in the charging site 20 and determines whether there are any vacant charging parking frames 22 (step S105). If there are any vacant charging parking frames 22, the charging management system 40 moves the returned electric vehicle 2 to a vacant charging parking frame 22 (step S106). Then, according to the charging completion SOC set in step S103 or step S104, charging of the returned electric vehicle 2 is started (step S111).

[0037] When there is no vacant charging parking frame 22, the charging management system 40 determines whether the number of charged electric vehicles 2 waiting in the waiting area 30 is equal to or less than a second predetermined number (step S107). When the number of waiting vehicles is greater than the second predetermined number, the charging management system 40 instructs the returned electric vehicles 2 to wait for a charging parking frame 22 to become available (step S109).

[0038] If the number of waiting vehicles is equal to or less than the second predetermined number, the charge management system 40 compares the SOC of the returned electric vehicle 2 with the SOC of each electric vehicle 2 that is being charged. Then, it determines whether there is an electric vehicle 2 that is being charged and has a lower SOC than the returned electric vehicle 2 (step S108). If the SOC of any electric vehicle 2 that is being charged is higher than the SOC of the returned electric vehicle 2, it instructs the returned electric vehicle 2 to wait for a charging parking slot 22 to become available (step S109).

[0039] If the electric vehicles 2 being charged include an electric vehicle with a lower SOC than the returned electric vehicle 2, the charge management system 40 selects the electric vehicle 2 with the lowest SOC among them. Then, the charge management system 40 replaces the selected electric vehicle 2 being charged with the lowest SOC with the returned electric vehicle 2 (step S110). The charge management system 40 starts charging the returned electric vehicle 2 according to the charge completion SOC set in step S103 or step S104 (step S111).

[0040] In the electric vehicle 2 being charged, it is determined whether the SOC has reached the charging completion SOC set in step S103 or step S104 (step S112). Charging continues until the SOC reaches the charging completion SOC (step S113). When the SOC reaches the charging completion SOC, charging is completed, and the charging management system 40 moves the charged electric vehicle 2 from the charging parking slot 22 to the waiting parking slot 32 in the waiting area 30 (step S114).

[0041] Next, the charging management system 40 calculates the remaining number of charging parking frames 22 in the charging site 20 and determines whether there are any vacant charging parking frames 22 (step S115). If there are no vacant charging parking frames 22, the charging management system 40 leaves the charged electric vehicle 2 waiting in the waiting area 30 without doing anything.

[0042] If there is a vacant charging parking slot 22, the charge management system 40 determines whether the number of charged electric vehicles 2 waiting in the waiting area 30 is greater than a third predetermined number (step S116). If the number of waiting vehicles is equal to or less than the third predetermined number, the charge management system 40 allows the charged electric vehicles 2 to wait in the waiting area 30 without doing anything.

[0043] If the number of waiting vehicles is greater than the third predetermined number, the charge management system 40 moves the electric vehicle 2 with the lowest SOC among the charged electric vehicles 2 waiting in the waiting area 30 to an available charging parking slot 22 (step S117). Then, for the charged electric vehicle 2 returned to the charging parking slot 22, the charge completion SOC is set to a normal value and recharging is started (step S111).

[0044] 4. Other embodiments In the above embodiment, the charging completion SOC is switched depending on whether the number of waiting, charged electric vehicles 2 is equal to or less than the first predetermined number, but the threshold number for switching the charging completion SOC from the emergency response value to the normal value may be set to be greater than the threshold number for switching the charging completion SOC from the normal value to the emergency response value. For example, in the case where the charging completion SOC is switched from the normal value to the emergency response value when the number of waiting electric vehicles 2 falls to five or less as in the above embodiment, the charging completion SOC may be switched from the emergency response value to the normal value when the number of waiting electric vehicles 2 falls to seven or more. The same applies to the second predetermined number and the third predetermined number.

[0045] The charging facility 100 may be an automatic valet parking facility. In this case, the electric vehicle 2 automatically travels along a route from the return site 10 to the designated charging parking frame 22 and a route from the charging parking frame 22 to the designated waiting parking frame 32 based on various information, and is automatically parked in the designated charging parking frame 22 or the waiting parking frame 32. In addition, in the case of recharging a charged electric vehicle, the electric vehicle 2 automatically travels along a route from the waiting parking frame 32 to the designated charging parking frame 22 based on various information, and is automatically parked in the designated charging parking frame 22. The charging device 24 installed in the charging parking frame 22 is a charging device that can be charged without being manned, for example, a non-contact charging device that uses electromagnetic induction. The automatic traveling and automatic parking in the charging facility 100 are performed by a vehicle control system mounted on the electric vehicle 2. The vehicle control system is wirelessly connected to a charging management system 40 as an automatic valet parking system, and causes the electric vehicle 2 to automatically travel and park according to instructions from the charging management system 40. [Explanation of symbols]

[0046] 2 Electric vehicle 10 Return area 20 Charging station 22 Charging parking space 24 Charging device 30 Waiting area 32 Waiting parking space 40 Charging Management System 42 Management device 42b Memory 42c Program 44 Storage device 46 Databases 100 Charging facilities

Claims

1. A charging management system for electric vehicles in a charging facility, The charging facility includes a charging station having one or more charging devices installed therein, and a waiting area where vehicles waiting to be rented are parked; The charging management system includes: Charging the electric vehicle at the charging station to a full-charge SOC; moving a charged electric vehicle that has been charged to the charge completion SOC from the charging site to the waiting site; when the number of the charged electric vehicles waiting at the waiting area becomes equal to or less than a predetermined number, switching the charge completion SOC to a value lower than a value when the number of the charged electric vehicles is greater than the predetermined number. A charging management system for electric vehicles in a charging facility.

2. The charging management system for electric vehicles in a charging facility according to claim 1, When the charging station is full, in response to the return of a returning electric vehicle having a higher SOC than the electric vehicle being charged at the charging station, the charging electric vehicle is replaced with the returning electric vehicle. A charging management system for electric vehicles in a charging facility.

3. The charging management system for electric vehicles in a charging facility according to claim 2, The charging electric vehicle having the lowest SOC is replaced with the returning electric vehicle. A charging management system for electric vehicles in a charging facility.

4. The charging management system for electric vehicles in a charging facility according to any one of claims 1 to 3, In response to availability of a vacant charging station, the charged electric vehicle having the lowest SOC is moved from the waiting station to the charging station. A charging management system for electric vehicles in a charging facility.

5. A method for managing charging of an electric vehicle in a charging facility, comprising: The charging facility includes a charging station having one or more charging devices installed therein, and a waiting area in which vehicles waiting to be rented are parked; The charging management method includes: Charging the electric vehicle at the charging station to a full-charge SOC; moving a charged electric vehicle that has been charged to the charge completion SOC from the charging site to the waiting site; and when the number of the charged electric vehicles waiting at the waiting area becomes equal to or less than a predetermined number, switching the charge completion SOC to a value lower than a value when the number of the charged electric vehicles is greater than the predetermined number. A charging management method for an electric vehicle in a charging facility.

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