Vehicle charging system

Abstract

To improve usability when setting up timer charging.SOLUTION: In a vehicle charging system, an input device accepts an input operation regarding a scheduled departure time of a vehicle from a user of the vehicle, a setting unit sets a charging target SOC indicating a charging target of an SOC of a power storage device based on the scheduled departure time accepted by the input device, a charging control unit controls charging of the power storage device by a power supply facility such that the SOC of the power storage device becomes the charging target SOC by the scheduled departure time, and a storage device stores information on the actual departure time of the vehicle and information on a setting history of the charging target SOC in association with each other. The setting unit performs statistical processing on the information stored in the storage device to acquire a reference time that is an expected value of the departure time and a reference SOC that is an expected value of the charging target SOC. The setting unit sets the charging target SOC by changing the reference SOC according to a time difference between the scheduled departure time accepted by the input device and the reference time.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present disclosure relates to a charging system for a vehicle equipped with a power storage device.

Background Art

[0002] Japanese Patent Application Laid-Open No. 2022-146415 (Patent Document 1) discloses a charge control device that charges a battery mounted on a vehicle with electric power supplied from an external power source. Based on history information indicating the usage status and charging status of the battery, the charge control device determines the pattern of the charging cycle that most approximates the user's charging habit among the patterns of a plurality of charging cycles, and causes a display unit to display the charge completion SOC, the charge start SOC, and the allowable lower limit SOC according to the determined pattern of the charging cycle. When the charge completion SOC is set to be lower according to the user's operation, the charge control device controls the battery to charge based on the set charge completion SOC.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Regarding the charging behavior of the user, there is timer charging in which the scheduled departure time of the vehicle for the next time is set and the charging of the battery is completed by the scheduled departure time. According to the above charge control device, the charge completion SOC in timer charging is displayed according to the pattern of the charging cycle determined from the charging habit of the user's timer charging.

[0005] However, when the user wants to perform timer charging that is different from their charging habit, for example, when the scheduled departure time of the vehicle next time is different from the usual departure time, the charging plan for timer charging cannot be changed. Also, although the usage status of the battery may change as the scheduled departure time of the vehicle changes, the completion SOC of charging cannot be set to accommodate the change in the usage status of the battery.

[0006] For this, it may be considered that the user sets the completion SOC of charging each time together with the scheduled departure time of the vehicle, but this will increase the user's effort. Also, for some users, it may not be easy to set an appropriate completion SOC of charging in anticipation of the usage status of the battery. As a result, there is a concern that the usability when setting timer charging will be reduced.

[0007] The present disclosure has been made to solve the above problems, and an object of the present disclosure is to improve the usability when setting timer charging for a vehicle equipped with a power storage device.

Means for Solving the Problems

[0008] A vehicle charging system according to an aspect of the present disclosure includes a vehicle equipped with a power storage device, a power supply facility configured to charge the power storage device from outside the vehicle, an input device, a setting unit, a charging control unit, and a storage device. The input device receives an input operation regarding the scheduled departure time of the vehicle from a user of the vehicle. The setting unit sets a charging target SOC indicating a charging target of the SOC of the power storage device based on the scheduled departure time received by the input device. The charging control unit controls the charging of the power storage device by the power supply facility so that the SOC of the power storage device reaches the charging target SOC by the scheduled departure time. The storage device stores information regarding the actual results of the departure time of the vehicle and information regarding the setting history of the charging target SOC in association with each other. The setting unit obtains a reference time that is an expected value of the departure time and a reference SOC that is an expected value of the charging target SOC by statistically processing the information stored in the storage device. The setting unit sets the charging target SOC by changing the reference SOC according to the time difference between the scheduled departure time received by the input device and the reference time.

[0009] According to the above configuration, the charging target SOC in timer charging is automatically set according to the user input regarding the next scheduled departure time of the vehicle, so that it is not necessary for the user to input the charging target SOC, and the user's labor is reduced. In addition, since the charging target SOC is set based on the scheduled departure time using the reference time and the reference SOC derived from the information on the usage record of the vehicle and the setting history of the charging target SOC, the charging target SOC can be appropriately set in anticipation of the usage status of the power storage device during the next driving. Therefore, the usability when setting the timer charging can be improved.

[0010] Preferably, when the time difference between the scheduled departure time and the reference time is equal to or less than a predetermined threshold, the setting unit sets the charging target SOC to the reference SOC. When the scheduled departure time coincides with the reference time, by determining that the charging target SOC also coincides with the reference SOC, the charging target SOC can be automatically set to an appropriate value reflecting the user's vehicle usage habit and the execution habit of timer charging.

[0011] Preferably, when the time difference between the scheduled departure time and the reference time is greater than the threshold value, the setting unit sets: (1) when the scheduled departure time is earlier than the reference time, the target charge SOC to a value higher than the reference SOC, and (2) when the scheduled departure time is later than the reference time, the target charge SOC to a value lower than the reference SOC. According to this, even when the scheduled departure time deviates from the reference time, the target charge SOC can be set to an appropriate value in view of the usage status of the power storage device.

[0012] Preferably, the setting unit obtains the reference time by statistically processing information on the actual departure times on the same day of the week as the scheduled departure time. Thereby, a reference time based on the user's vehicle usage habits can be obtained.

[0013] Preferably, the setting unit obtains the reference SOC by statistically processing information on the setting history of the target charge SOC on the same day of the week or in the same time zone as the scheduled departure time. Thereby, a reference SOC based on the user's execution habits of timer charging can be obtained.

[0014] Preferably, the vehicle charging system further includes a notification device that notifies the user of the target charge SOC set by the setting unit. The input device is configured to receive a user input for changing the target charge SOC. The setting unit changes the setting of the target charge SOC in response to the user input. According to this, the user can appropriately change the target charge SOC according to the next vehicle driving plan.

Advantages of the Invention

[0015] According to the present disclosure, the usability when setting the timer charging of a vehicle equipped with a power storage device can be improved.

Brief Description of the Drawings

[0016]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Embodiments for Carrying Out the Invention

[0017] 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 denoted by the same reference numerals, and the description thereof will not be repeated.

[0018] <Configuration of Vehicle> FIG. 1 is a diagram showing a configuration example of a vehicle to which a vehicle charging system according to the present embodiment is applied. As shown in FIG. 1, the vehicle 50 includes a battery 130 that stores traveling power, an inlet 110, a charger / discharger 120, monitoring modules 121 and 131, a traveling drive unit 140, an ECU (Electronic Control Unit) 150, an HMI (Human Machine Interface) 160, a navigation system (hereinafter also referred to as "NAVI") 170, and a communication device 180.

[0019] The battery 130 is, for example, a secondary battery such as a lithium-ion battery or a nickel-metal hydride battery, or an electric double layer capacitor. The battery 130 corresponds to an example of a "power storage device". The vehicle 50 may be an electric vehicle that can travel using only the power stored in the battery 130, or a plug-in hybrid vehicle that can travel using both the power stored in the battery 130 and the output of an engine.

[0020] The monitoring module 131 monitors the state of the battery 130. The monitoring module 131 includes various sensors for detecting the state of the battery 130 (such as voltage, current, and temperature), and outputs the detection results to the ECU 150. The ECU 150 can obtain the state of the battery 130 (such as voltage, current, temperature, SOC (State Of Charge), and internal resistance) based on the output of the monitoring module 131.

[0021] The EVSE (Electric Vehicle Supply System) 40 is a power supply facility for a vehicle. The EVSE 40 includes a power supply circuit 41. A charging cable 42 is connected to the EVSE 40. The charging cable 42 has a connector 43 at its tip and has power lines inside.

[0022] The inlet 110 is configured such that the connector 43 of the charging cable 42 can be connected. When the connector 43 of the charging cable 42 is connected to the inlet 110, the vehicle 50 and the EVSE 40 are electrically connected, and it becomes possible to supply power from the EVSE 40 to the vehicle 50 through the charging cable 42. As a result, external charging (that is, charging of the battery 130 with power from outside the vehicle) becomes possible in the vehicle 50.

[0023] The charger 120 is disposed between the inlet 110 and the battery 130. The charger 120 includes a relay for switching the connection / disconnection of the power path from the inlet 110 to the battery 130, and a power converter (such as a bidirectional converter). The power converter converts the power received by the inlet 110 into power suitable for charging the battery 130 (that is, power for external charging) and outputs it to the battery 130. The relay and the power converter are controlled by the ECU 150.

[0024] The monitoring module 121 monitors the state of the charger 120. The monitoring module 121 includes various sensors for detecting the state of the charger 120 (such as the voltage and current input / output to the power converter), and outputs the detection results to the ECU 150.

[0025] The traveling drive unit 140 includes a PCU (Power Control Unit) and an MG (Motor Generator), and drives the vehicle 50 using the electric power stored in the battery 130. The PCU includes a power converter, an SMR (System Main Relay), and a control device. The control device controls the power converter and the relay according to an instruction from the ECU 150. The MG is, for example, a three-phase AC motor generator, and is driven by the PCU to rotate the drive wheels W. The MG supplies the regenerated electric power to the battery 130. The SMR switches the connection / disconnection of the power path from the battery 130 to the PCU.

[0026] The ECU 150 includes a processor 151, a RAM (Random Access Memory) 152, a storage device 153, and a timer 154. For the processor 151, for example, a CPU (Central Processing Unit) is adopted. The RAM 152 functions as a working memory that temporarily stores data processed by the processor 151. The timer 154 is configured to notify the processor 151 of the arrival of the set time.

[0027] The storage device 153 includes, for example, a ROM (Read Only Memory) and a non-volatile memory. In addition to the program, information used in the program is stored in the storage device 153. By the processor 151 executing the program stored in the storage device 153, various controls by the ECU 150 are executed. These various controls are not limited to being executed by software, and can also be executed by dedicated hardware.

[0028] The information stored in the memory device 153 includes information regarding the usage history of the vehicle 50, information regarding the execution history of external charging, and information regarding the usage plan of the vehicle 50. The usage history of the vehicle 50 includes the driving history of the vehicle 50 (for example, the departure time, driving route, and driving time of the vehicle 50). The execution history of external charging includes the charging location, the specifications of the power supply equipment installed at the charging location, and the execution history of timer charging. Timer charging refers to performing external charging so that the SOC of the battery 130 reaches the target SOC by the scheduled departure time of the vehicle 50. In order to avoid a situation where the SOC of the battery 130 is low at the departure of the vehicle 50, the charging of the battery 130 is controlled by the processor 151 so that the SOC reaches the target SOC at the scheduled departure time. The execution history of timer charging includes the setting history of the target SOC for charging.

[0029] The usage plan of the vehicle 50 includes the driving plan of the vehicle 50 (for example, the scheduled departure time and driving route of the vehicle 50), and the charging plan of the battery 130 (for example, the target SOC for charging).

[0030] The HMI 160 includes an input device and a display device. The HMI 160 may include a touch panel display. The HMI 160 may include a meter panel and / or a head-up display. The HMI 160 may include a smart speaker that accepts voice input. The user can register the above-described usage plan of the vehicle 50 in the memory device 153 using the HMI 160. The HMI 160 corresponds to an example of an "input device" and a "notification device".

[0031] NAVI170 includes a touch panel display, a GPS (Global Positioning System) module, a processor, and a memory device. The memory device stores map information. The touch panel display receives input from a user and displays a map and other information. NAVI170 receives signals from GPS satellites and uses the received signals to detect the position of the vehicle 50. NAVI170 performs route search to find the optimal route from the current position of the vehicle 50 to the destination with reference to the map information. NAVI170 corresponds to an example of an "input device" and a "notification device".

[0032] The communication device 180 includes various communication I / Fs. The ECU 150 communicates with a communication device outside the vehicle 50 through the communication device 180. The communication devices outside the vehicle 50 include the EVSE 40, the server 30, and the user terminal 80 described later. The ECU 150 transmits information stored in the memory device 153 (information related to the usage history of the vehicle 50, information related to the execution history of external charging, and information related to the usage plan of the vehicle 50) to the server 30 through the communication device 180.

[0033] <Configuration of Vehicle Charging System> FIG. 2 is a diagram showing a schematic configuration of a vehicle charging system according to the present embodiment. As shown in FIG. 2, the vehicle charging system 1 includes a server 30, an EVSE 40, a vehicle 50, and a user terminal 80.

[0034] The user terminal 80 corresponds to an example of a "terminal device" carried by a user of the vehicle 50. In the example of FIG. 2, the user terminal 80 is a smartphone, but any terminal device can be adopted. Predetermined application software (hereinafter simply referred to as "app") is installed in the user terminal 80. The user terminal 80 can exchange various information with the communication device 180 mounted on the server 30 and the vehicle 50 through the above app. The user can operate the app through, for example, the touch panel display of the user terminal 80. In addition, the touch panel display of the user terminal 80 can notify the user of information.

[0035] The server 30 is configured to be communicable with each of the vehicle 50 and the user terminal 80. The server 30 includes a control device 31, a storage device 32, and a communication device 33. The control device 31 includes a processor, performs predetermined information processing, and controls the communication device 33.

[0036] The storage device 32 stores programs executed by the control device 31 and various information used by the programs. The various information includes information received from the ECU 150 of the vehicle 50 (information regarding the usage history of the vehicle 50, information regarding the execution history of external charging, and information regarding the usage plan of the vehicle 50).

[0037] The communication device 33 includes various communication I / Fs. The control device 31 communicates with the communication devices 180 of the user terminal 80 and the vehicle 50 through the communication device 33 and receives information. The server 30 updates the information in the storage device 32 based on the received information.

[0038] <Timer charging of the battery> Next, the timer charging of the battery 130 will be described. In the present embodiment, the user can set a charging plan regarding the timer charging of the battery 130 by operating the user terminal 80, the HMI 160, or the NAVI 170. Hereinafter, an example in which the user operates the user terminal 80 to set a charging plan will be described.

[0039] FIG. 3 is a diagram showing an example of a charging plan setting screen displayed on the touch panel display of the user terminal 80. As shown in FIG. 3, the setting screen includes an operation unit 200, a setting bar 210, display bars 212 and 214, and buttons 216 and 218.

[0040] The operation unit 200 receives user input regarding the next usage schedule of the vehicle 50. The next usage schedule of the vehicle 50 includes the scheduled departure date and scheduled departure time of the next vehicle 50. The user can set the scheduled departure date and scheduled departure time of the next vehicle 50 by operating the operation unit 200.

[0041] The display bar 212 is displayed on the setting bar 210 and displays the current SOC of the battery 130 by the length of the bar. The display bar 214 is displayed on the setting bar 210 and displays the set value of the charging target SOC in the next timer charging by the length of the bar.

[0042] In the present embodiment, based on the next usage schedule (scheduled departure date and scheduled departure time) of the vehicle 50 received by the operation unit 200, the charging target SOC is automatically set, and a display bar 214 indicating the set value of the charging target SOC is displayed on the setting bar 210. According to this, the user can save the trouble of inputting the charging target SOC. The method for setting the charging target SOC will be described in detail later.

[0043] The button 216 is a button that allows the user to change the setting of the charging target SOC displayed on the setting bar 210. After the user performs an operation of touching the button 216, the user can change the charging target SOC by performing an operation of touching the right end of the display bar 214 and sliding it in the left-right direction.

[0044] The button 218 is a button for completing the usage schedule of the vehicle 50 and the setting of the charging target SOC. The user can confirm each setting by performing an operation of touching the button 218.

[0045] (Setting of Charging Target SOC) FIG. 4 is a flowchart showing an example of a process for setting a charging target SOC in timer charging. A series of processes shown in the flowchart of FIG. 4 are executed by the user terminal 80 and the server 30 when the user sets a charging plan using the user terminal 80. The server 30 corresponds to an embodiment of the "setting unit".

[0046] In the figure, the processes executed by the user terminal 80 are shown on the left side, and the processes executed by the server 30 are shown on the right side. Each step is realized by software processing by a processor in the user terminal 80 and a control device 31 of the server 30, but may also be realized by an electronic circuit (hardware) arranged in the user terminal 80 and the server 30.

[0047] In step (hereinafter simply referred to as "S") 01, in response to receiving a charging plan setting request from the user, the user terminal 80 causes a charging plan setting screen (FIG. 3) to be displayed on the touch panel display. In a certain situation, the user terminal 80 causes a charging plan setting screen (FIG. 3) to be displayed in response to the user starting an application installed in advance.

[0048] In S02, the user terminal 80 determines whether it has received a user input regarding the next usage schedule (departure scheduled date and departure scheduled time) of the vehicle 50. If the user terminal 80 has received a user input regarding the next usage schedule of the vehicle 50 (when the determination in S02 is YES), the user terminal 80 transmits information (departure scheduled date and departure scheduled time) regarding the next usage schedule of the vehicle 50 to the server 30 in S03.

[0049] In S11, the server 30 determines whether it has received information regarding the next usage schedule of the vehicle 50 (scheduled departure date and scheduled departure time) from the user terminal 80. When the server 30 has received information regarding the next usage schedule of the vehicle 50 (scheduled departure date and scheduled departure time) (when the determination in S11 is YES), the server 30 obtains a reference time and a reference SOC based on the information stored in the storage device 32 in S12. The reference time is an expected value of the departure time of the vehicle 50. The reference SOC is an expected value of the charging target SOC in timer charging.

[0050] FIG. 5 is a diagram for explaining the information stored in the storage device 32 of the server 30. The information stored in the storage device 32 includes information regarding the driving history of the vehicle 50 and the execution history of timer charging received from the ECU 150 of the vehicle 50. As shown in FIG. 5, the storage device 32 stores the information regarding the actual results of the departure time of the vehicle 50 and the information regarding the setting history of the charging target SOC in association with each other.

[0051] FIG. 5 shows the time zones including the actual results of the departure date and the actual results of the departure time of the vehicle 50. The length of each time zone can be arbitrarily set. FIG. 5 further shows the set value of the charging target SOC in the immediately preceding timer charging for each departure date. The period during which the driving history of the vehicle 50 and the execution history of timer charging are stored in the storage device 32 can be set to an arbitrary length. In a certain aspect, the length of the period can be set in consideration of the fact that the usage pattern of the vehicle 50 changes according to changes in the user's living environment (residence, climate, workplace, etc.).

[0052] The server 30 obtains the reference time by statistically processing the information shown in FIG. 5. For example, the server 30 obtains the reference time by statistically processing the actual results of the departure time on the same day of the week as the next scheduled departure date of the vehicle 50. The reference time can be, for example, a time zone including the average value or the mode value of the actual results of the departure time on the same day of the week as the scheduled departure date.

[0053] Further, the server 30 obtains the reference SOC by statistically processing the information shown in FIG. 5. In a certain scenario, the server 30 obtains the reference SOC by statistically processing the setting history of the charging target SOC on the same day of the week as the scheduled departure date of the next vehicle 50. The reference SOC can be, for example, the average value or the mode value of the setting values of the charging target SOC on the same day of the week.

[0054] In another scenario, the server 30 obtains the reference SOC by statistically processing the setting history of the charging target SOC in the same time period as the scheduled departure time of the next vehicle 50. The reference SOC can be, for example, the average value or the mode value of the setting values of the charging target SOC in the same time period.

[0055] Next, the server 30 compares the reference time obtained in S12 with the scheduled departure time of the next vehicle 50, and determines whether the scheduled departure time matches the reference time. For example, the server 30 calculates the time difference between the reference time and the scheduled departure time, and determines that the scheduled departure time matches the reference time if the magnitude of the time difference is less than or equal to a predetermined threshold. If the time difference is greater than the threshold, the server 30 further determines whether the scheduled departure time is earlier or later than the reference time.

[0056] When the scheduled departure time is earlier than the reference time (YES determination in S13), the server 30 sets the charging target SOC in the next timer charging to a value higher than the reference SOC in S14. In S14, the server 30 assumes that the vehicle 50 has traveled for a time corresponding to the time difference between the reference time and the scheduled departure time, and calculates the amount of electric power required for this travel. This amount of electric power can be calculated, for example, by calculating the distance that the vehicle 50 can travel in the above time, and calculating from the calculated travelable distance and the electricity cost of the vehicle 50. The travelable distance of the vehicle 50 can be calculated from the travel history of the vehicle 50 stored in the storage device 32 or the driving mode (vehicle speed) of the vehicle 50. The server 30 sets the charging target SOC by adding the calculated amount of electric power to the reference SOC.

[0057] On the other hand, when the scheduled departure time is later than the reference time (when the determination in S15 is YES), the server 30 sets, in S16, the charging target SOC in the next timer charging to a value lower than the reference SOC. In S16, in contrast to S14, the server 30 assumes that the vehicle 50 is not running for a time corresponding to the time difference between the reference time and the scheduled departure time, and calculates the amount of electric power required for this running. Then, the server 30 sets the charging target SOC by subtracting the calculated amount of electric power from the reference SOC.

[0058] When the scheduled departure time coincides with the reference time (when the determination in S15 is NO), the server 30 sets, in S17, the charging target SOC in the next timer charging to the reference SOC.

[0059] When the charging target SOC is set by any of S14, S16, and S17, the server 30 transmits, in S18, the set charging target SOC to the user terminal 80. Further, the server 30 transmits, in S19, the set value of the charging target SOC to the ECU 150 of the vehicle 50 in association with the next scheduled departure date and scheduled departure time of the vehicle 50. Thereby, the ECU 150 of the vehicle 50 controls the charging of the battery 130 so that the SOC of the battery 130 reaches the charging target SOC by the scheduled departure time on the next scheduled departure date. The ECU 150 corresponds to an embodiment of the "charge control unit".

[0060] After the user terminal 80 transmits the information (scheduled departure date and scheduled departure time) regarding the next use plan of the vehicle 50 to the server 30 in S03, it determines, in S04, whether or not it has received the set value of the charging target SOC from the server 30. When receiving the set value of the charging target SOC (when the determination in S04 is YES), the user terminal 80 displays, in S05, a display bar 214 indicating the set value of the charging target SOC on the setting bar 210 of the charge plan setting screen (Figure 3).

[0061] As described above, according to the vehicle charging system according to the present embodiment, the charging target SOC in the next timer charging is automatically set according to the user input regarding the next vehicle usage plan (departure date and scheduled departure time). As a result, since it is not necessary for the user to input the charging target SOC, the user's labor is reduced. Further, since the charging target SOC is set based on the scheduled departure time using the reference time and reference SOC derived from information regarding the driving history of the vehicle and the execution history of timer charging, while reflecting the user's vehicle usage habits and timer charging execution habits, the charging target SOC can be appropriately set in anticipation of the usage status of the battery 130 during the next drive. Therefore, the usability when setting the timer charging can be improved.

[0062] <Other Embodiments> (1) In the above-described embodiment, the configuration in which the charging target SOC in the timer charging is automatically set according to the next vehicle 50 usage plan (scheduled departure date and scheduled departure time) and is displayed on the charging plan setting screen (FIG. 3) of the user terminal 80 has been described. However, the user can appropriately change the set charging target SOC by touching the button 216 on the charging plan setting screen.

[0063] FIG. 6 is a flowchart showing another example of the process of setting the charging target SOC in the timer charging. The flowchart shown in FIG. 6 is obtained by adding the processes of S06, S07, S20, and S21 to the flowchart shown in FIG. 4. Note that S1 to S17 of the processes executed by the server 30 are the same as those in FIG. 4, and thus the description thereof is omitted.

[0064] When the charging target SOC is displayed on the charging plan setting screen (FIG. 3) by S05, the user terminal 80 determines in S06 whether or not a user operation for changing the charging target SOC has been received. When a user operation for changing the charging target SOC has been received (YES determination in S06), the user terminal 80 transmits the changed charging target SOC to the server 30 by S07.

[0065] After the server 30 transmits the charging target SOC to the user terminal 80 in S18, in S20, it determines whether or not a set value of the charging target SOC has been received from the user terminal 80. When the set value of the charging target SOC is received from the user terminal 80 (when the determination in S20 is YES), the server 30 changes the charging target SOC to the received charging target SOC by any one of S14, S16, and S17 in S21. Then, the server 30 transmits the set value of the charging target SOC to the ECU 150 of the vehicle 50 in association with the scheduled departure date and scheduled departure time of the next vehicle 50 in S19.

[0066] Note that when the charging target SOC is changed according to a user operation, the information stored in the storage device 32 of the server 30 (see FIG. 5) is updated. Thereby, the change in the current charging target SOC can be reflected in the setting of the charging target SOC in the timer charging after the next time.

[0067] (2) In the above-described embodiment, the configuration in which the server 30 sets the charging target SOC according to a user operation on the user terminal 80 has been described. However, the ECU 150 of the vehicle 50 or the user terminal 80 may be configured to set the charging target SOC. In this case, the ECU 150 or the user terminal 80 functions as a "setting unit".

[0068] The embodiments disclosed this time should be considered to be illustrative in all respects and not restrictive. The scope of the present disclosure is shown not by the description of the above-described embodiments but by the claims, and it is intended that all modifications within the meaning and scope equivalent to the claims are included.

Explanation of Signs

[0069] 1 Charging system, 30 Server, 31 Control device, 32 Storage device, 33 Communication device, 40 EVSE, 50 Vehicle, 80 User terminal, 110 Inlet, 120 Charger / discharger, 130 Battery, 140 Travel drive unit, 150 ECU, 180 Communication device.

Claims

1. A vehicle equipped with a power storage device, A power supply facility configured to charge the power storage device from outside the vehicle, An input device that receives an input operation from a user of the vehicle regarding a scheduled departure time of the vehicle, A setting unit that sets a charging target SOC indicating a charging target of the SOC of the power storage device based on the scheduled departure time received by the input device, A charging control unit that controls charging of the power storage device by the power supply facility so that the SOC of the power storage device reaches the charging target SOC by the scheduled departure time, A storage device that stores information related to the actual departure time of the vehicle and information related to the setting history of the charging target SOC in association with each other, The setting unit, By statistically processing the information stored in the storage device, obtains a reference time that is an expected value of the departure time and a reference SOC that is an expected value of the charging target SOC, A vehicle charging system that sets the charging target SOC by changing the reference SOC according to the time difference between the scheduled departure time received by the input device and the reference time.

2. When the time difference between the scheduled departure time and the reference time is equal to or less than a predetermined threshold, the setting unit sets the charging target SOC to the reference SOC. The vehicle charging system according to Claim 1.

3. When the time difference between the scheduled departure time and the reference time is greater than the threshold, the setting unit, When the scheduled departure time is earlier than the reference time, sets the charging target SOC to a value higher than the reference SOC, When the scheduled departure time is later than the reference time, sets the charging target SOC to a value lower than the reference SOC. The vehicle charging system according to Claim 2.

4. The setting unit obtains the reference time by statistically processing information related to the actual departure time on the same day of the week as the scheduled departure time. The vehicle charging system according to any one of Claims 1 to 3.

5. The setting unit obtains the reference SOC by statistically processing information related to the setting history of the charging target SOC on the same day of the week or in the same time zone as the scheduled departure time. The vehicle charging system according to any one of Claims 1 to 3.

6. Further includes a notification device that notifies the user of the charging target SOC set by the setting unit, The input device is configured to receive a user input for changing the charging target SOC, The setting unit changes the setting of the charging target SOC according to the user input. The vehicle charging system according to any one of claims 1 to 3.

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