Control apparatus

Abstract

To provide a vehicle capable of at least one of charging and discharging with an external facility when the vehicle is connected to a power station after a scheduled departure time has passed.SOLUTION: A vehicle 10 controlled by a control apparatus includes a power storage device 11 and a power conversion device 13. The power conversion device 13 is configured to be capable of at least one of charging the power storage device 11 using power from outside the vehicle and discharging power from the power storage device 11 to the outside of the vehicle. The control apparatus includes a CPU 72 and a memory 73 that stores processes executed by a processor. A CPU 72 controls a power supply device so that a target SOC set by a user of the vehicle 10 is reached at scheduled departure time. If the vehicle 10 has not departed even after the scheduled departure time has passed, the CPU 72 causes the power supply device to perform at least one of charging and discharging in a range higher than a lower limit SOC.SELECTED DRAWING: Figure 1

Description

[Technical field]

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

[0002] The vehicle described in JP 2021-177697 A is equipped with a power storage device and is configured to be able to charge the power storage device with power supplied from a power station. Furthermore, the vehicle is capable of setting a scheduled departure time and performing timer charging to complete charging by the scheduled departure time. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-177697 Summary of the Invention [Problem to be solved by the invention]

[0004] In recent years, there has been a study on the effective use of surplus electricity in facilities such as homes by charging an on-board power storage device during times when the power output of renewable energy power generation is at its peak. In addition, there has been a study on using the power stored in the on-board power storage device to compensate for the power consumption in facilities such as homes when the vehicle is connected to a power station.

[0005] On the other hand, in the above-mentioned vehicle, when the vehicle is connected to the power station even after the scheduled departure time has passed, charging / discharging between the vehicle and the power station is not possible.

[0006] Therefore, even if the vehicle is connected to the power station after the scheduled departure time has passed, the problem arises that the surplus power in the facility such as the house cannot be charged to the power storage device of the vehicle. Also, even if the vehicle is connected to the power station after the scheduled departure time has passed, the problem arises that the power in the power storage device of the vehicle cannot be supplied to the facility such as the house.

[0007] The present disclosure has been made in consideration of the above-mentioned problems, and its purpose is to provide a control device that controls a vehicle so that it can perform at least one of charging and discharging with external equipment, etc. when the vehicle is connected to a power station after the scheduled departure time has passed. [Means for solving the problem]

[0008] The control device according to the present disclosure is a control device for controlling a vehicle, the vehicle including a power storage device and a power supply device, the power supply device being configured to be capable of at least one of charging the power storage device using power from outside the vehicle and discharging power from the power storage device to outside the vehicle, the control device including a processor and a memory for storing processing executed by the processor, the processor controls the power supply device to achieve a target SOC set by a user of the vehicle at a scheduled departure time, and if the vehicle has not departed when the scheduled departure time has passed, the processor causes the power supply device to perform at least one of charging and discharging within a range higher than a lower limit SOC set by the user of the vehicle. Effect of the Invention

[0009] According to the control device of the present disclosure, when the vehicle is connected to a power station after the scheduled departure time has passed, at least one of charging and discharging can be performed with external equipment, etc. [Brief description of the drawings]

[0010] [Figure 1]1 is a diagram showing roughly the overall configuration of a power system including a vehicle according to a first embodiment. [Diagram 2] FIG. 2 is a diagram showing an example of an SOC usable range and a time transition of the SOC. [Diagram 3] 1 is a flow diagram executed by the ECU 15, the power stand 20, the power equipment 30, the server 70, and the user terminal 80. [Figure 4] FIG. 4 is a flow diagram showing a continuation of the flow shown in FIG. [Diagram 5] 11 is a flow chart for explaining in detail a command selection method relating to power utilization control in step S17. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present disclosure will now be described with reference to the accompanying drawings, in which the same or corresponding components are designated by the same reference numerals.

[0012] 1 is a diagram illustrating a schematic diagram of an overall configuration of a power system including a vehicle according to embodiment 1. Power system 1 includes vehicle 10, power stand 20, power equipment 30, a power grid 40, a distribution board 50, a load device 60, a server 70, and a user terminal 80.

[0013] The vehicle 10 and the power station 20 are configured to be electrically connectable via a charging cable. The vehicle 10 is a user's vehicle and may be configured to enable plug-in charging, and may be, for example, a hybrid vehicle, an electric vehicle, or the like.

[0014] Vehicle 10 has a power storage device 11, a connector 12, a power converter 13, a power output device 14, an ECU (Home Energy Management System) 15, a communication device 16, an HMI (Human Machine Interface) device 17, a charging relay 18, and an SMR (System Main Relay) 19.

[0015] The vehicle 10 is capable of charging the power storage device 11 using power supplied from the power station 20. The vehicle 10 is also capable of discharging the power of the power storage device 11 to the power station 20.

[0016] The power storage device 11 is a chargeable and dischargeable secondary battery. The connector 12 is connectable to a connector 22 provided at the tip of a power cable 21 of a power station 20.

[0017] The power converter 13 is a power supply device controlled by a control signal from the ECU 15. The power converter 13 converts the power supplied from the power stand 20 into power that can be charged by the power storage device 11, and supplies the power to the power storage device 11, thereby charging the power storage device 11. The power converter 13 also converts the power discharged from the power storage device 11 into power that can be received by the power stand 20, and supplies the power to the power stand 20. The power converter 13 includes, for example, a bidirectional AC / DC converter.

[0018] The power output device 14 generates driving force for the vehicle 10 by using the electric power stored in the power storage device 11. Specifically, the power output device 14 generates driving force for the vehicle 10 based on a drive command signal from the ECU 15, and outputs the generated driving force to the drive wheels of the vehicle 10. In addition, when the power output device 14 receives a power generation command signal from the ECU 15, it discharges and supplies the electric power to the power storage device 11.

[0019] Vehicle 10 has a plurality of sensors that detect various physical quantities necessary for controlling vehicle 10, such as monitoring sensors that detect the state (voltage, current, temperature, etc.) of power storage device 11. Each of these sensors outputs the detection results to ECU 15. Vehicle 10 also accumulates data on the electricity price of the electricity charged to power storage device 11. This accumulated data is output to ECU 15. Based on this data, the price of the electricity stored in power storage device 11 is calculated.

[0020] The ECU 15 has a CPU (Central Processing Unit) and memory (such as a ROM (Read Only Memory) and a RAM (Random Access Memory)) not shown, and controls each device of the vehicle 10 based on information recorded in the memory and information from each sensor. The ECU 15 communicates wirelessly or wired through the communication device 16 with communication devices 25, 74, and 83 provided in the power stand 20, the power equipment 30, the server 70, and the user terminal 80, respectively, outside the vehicle.

[0021] The communication device 16 is an interface for communicating with devices outside the vehicle (such as the power station 20, the power equipment 30, the server 70, and the user terminal 80). The communication device 16 transmits information transmitted from the ECU 15 to the devices outside the vehicle and transmits information received from the devices outside the vehicle to the ECU 15.

[0022] The HMI device 17 is a device that provides various information to the user of the vehicle 10 and receives operations from the user of the vehicle 10. The HMI device 17 includes a display equipped with a touch panel, a speaker, and the like.

[0023] The power stand 20 is a facility where the vehicle 10 can charge and discharge electricity. The power stand 20 includes a power cable 21, a connector 22, a relay 23, a controller 24, and a communication device 25. The power stand 20 is electrically connected to a distribution board 50 via a PCU 32.

[0024] One end of the power cable 21 is connected to the relay 23, and the other end is provided with a connector 22. When supplying power to the vehicle 10 or receiving power from the vehicle 10, the connector 22 of the power cable 21 is connected to the connector 12 of the vehicle 10, and the relay 23 is closed. The opening and closing operation of the relay 23 is controlled by a controller 24.

[0025] The power equipment 30 includes a solar panel 31 and a PCU 32. The solar panel 31 is a power generation equipment that generates electricity using solar energy. The solar panel 31 is electrically connected to the PCU 32. The solar panel 31 receives sunlight to generate direct current and supplies the generated direct current to the PCU 32.

[0026] The PCU 32 has various electric power conversion devices (not shown), a control device, and a communication device 36. The control device has a CPU 34 and a memory 35. The PCU 32 converts the direct current supplied from the solar panel 31 into alternating current, adjusts the voltage and frequency of the power to the power storage device 11, the system power supply 40, and the load device 60 via the power stand 20 and the distribution board 50. Alternatively, the PCU 32 adjusts the frequency and voltage of the power of the power storage device 11 supplied via the power stand 20, and supplies it to the system power supply 40. The communication device 36 is configured to be able to communicate with the communication device 16 of the vehicle 10 wirelessly or via a wire.

[0027] The system power supply 40 is a commercial power supply supplied by an electric power company. The system power supply 40 supplies power to the power storage device 11 and the load device 60 via a distribution board 50. The distribution board 50 converts the voltage of the power supplied from the system power supply 40 into a low voltage that can be used by the load device 60 and the like.

[0028] The load device 60 is any electrical device that operates by receiving power from the distribution board 50. The load device 60 is, for example, a household electrical appliance or a commercial manufacturing facility.

[0029] The server 70 is formed from a control device 71 and a communication device 74. The control device 71 has a CPU 72, a memory 73, and input / output ports for inputting and outputting various signals. Various controls executed by the control device 71 are software processes, that is, executed by the CPU 72 reading out a program stored in the memory 73. Various controls by the control device 71 are not limited to software processes, and may be processed by dedicated hardware (electronic circuits).

[0030] The communication device 74 of the server 70 is capable of wireless communication with, for example, the communication device 16 of the vehicle 10. The communication device 74 can acquire information such as weather information and electricity charges via a communication network such as the Internet. The information such as electricity charges is provided by a server of a management company that manages the system power source 40.

[0031] The server 70 also stores in the memory 73 charge / discharge history information indicating the past charge / discharge times of the vehicle 10 and the electricity fees for the past charge / discharge times.

[0032] The user terminal 80 is a communication terminal, such as a smartphone, that can be carried by the user of the vehicle 10. The user terminal 80 includes a control device 81, an HMI device 82, and a communication device 83.

[0033] The control device 81 includes a CPU and a memory, not shown. The control device 81 controls the HMI device 82 and the communication device 83 of the user terminal 80 based on information stored in the memory, contents input to the HMI device 82 of the user terminal 80, etc. The HMI device 82 is a device that provides various information to the user and accepts operations from the user. The communication device 83 is capable of wireless communication with the communication device 16 of the vehicle 10. Various functions using the power system 1 formed as described above will be described.

[0034] The on-board power storage device can implement power utilization control, which includes at least one of charging the power storage device with surplus power from a solar panel or the like, supplying the power of the power storage device to a load device, and adjusting the balance between power supply and demand.

[0035] A vehicle user permits power utilization control of the power storage device during a time period when the vehicle is not in use, for example, before the departure time of the vehicle. Timer charging control is control that makes the SOC (Stock of Charge) of the power storage device 11 reach a target SOC at the scheduled departure time. In timer charging, in order to prevent a situation in which the SOC of the power storage device of the vehicle has decreased at the time of departure, the vehicle is charged so that the power storage device reaches the target SOC at the scheduled departure time. The target SOC may be a value set by the user or a value set by default. The scheduled departure time may be a time arbitrarily set by the user or a time estimated from the usage history of the vehicle.

[0036] On the other hand, it is expected that the user will not use the vehicle even when the scheduled departure time arrives. In this case, the vehicle may not be able to effectively utilize the power in the power storage device in order to maintain the target SOC set at the time of departure even after the scheduled departure time has passed.

[0037] Therefore, vehicle 10 according to the first embodiment has a configuration for preventing the above-mentioned situation from occurring. Specifically, vehicle 10 includes a power converter 13 for enabling power storage device 11 to charge and discharge. When power converter 13 is connected to power stand 20 via power cable 21, vehicle 10 performs power utilization control within an SOC usable range arbitrarily set by the user of power storage device 11. The SOC usable range is made up of a lower limit SOC and an upper limit SOC. The lower limit SOC is equal to or lower than a target SOC, and the upper limit SOC is set to a value greater than the target SOC.

[0038] The ECU 15 of the vehicle 10 issues instructions to the power station 20 via the communication devices 16, 25 so as to implement power utilization control within the SOC usable range. The power station 20 opens and closes the relay 23 in accordance with the control instructions from the ECU 15.

[0039] With this configuration, even if a situation occurs in which the user is not using vehicle 10 after scheduled departure time t10 of vehicle 10 has passed, power utilization control can be performed using power storage device 11 within the SOC usable range.

[0040] The target SOC, upper limit SOC, and lower limit SOC values ​​are set as defaults in the ECU 15. Alternatively, the user of the vehicle 10 may set them in advance using the user terminal 80. The values ​​set in the user terminal 80 through the HMI device 82 are reflected in the ECU 15 by communication between the communication device 83 and the communication device 16.

[0041] In the above embodiment, the power system 1 includes the power equipment 30 and the distribution board 50, but the present disclosure is not limited thereto. For example, the power system 1 may include a function of a Home Energy Management Service (HEMS). Specifically, the power of the power system 40 is supplied to the load device 60 via a smart meter and a distribution board compatible with the HEMS. The power equipment 30 includes a HEMS controller. The HEMS controller is configured to be able to communicate with the HEMS-compatible distribution board, the load device 60, and the PCU 32. This allows the HEMS controller to acquire information on each electrical device and control the operation of each load device 60.

[0042] FIG. 2 is a diagram showing an example of the SOC usable range and the time transition of the SOC. Line k1 indicates the target SOC. Line k2 indicates the upper limit SOC of the SOC usable range, and line k3 indicates the lower limit SOC of the SOC usable range. In this embodiment, the target SOC, upper limit SOC, and lower limit SOC ranges are, for example, 60%, 90%, and 40%. Line L1 indicates the time transition of the actual SOC. The time transition of line L1 will be described with reference to FIG. 2.

[0043] The period from time t10 to time t11 indicates a time period for timer charging. Time t11 is a scheduled departure time for vehicle 10. Vehicle 10 is charged so that the SOC of power storage device 11 reaches a target SOC at time t11.

[0044] The period from time t11 to time t12 indicates the standby time of the vehicle. The lower limit SOC of the vehicle 10 is maintained at the target SOC until time t12. During the standby time, power is required to keep the ECU 15 and other components activated. Thus, by setting the standby time to, for example, about 15 minutes, the power consumption of the ECU 15 is prevented from becoming excessive.

[0045] Time t12 to time t15 indicate a time period during which the vehicle 10 is performing power utilization control. Specifically, in the time period from time t12 to time t13, surplus power is generated by power generation by the solar panel, and the power storage device 11 is charged via the power stand 20. Thereafter, when the SOC reaches the upper limit SOC of line k2, power supply from the power stand 20 to the vehicle 10 is stopped until time t14. In the time period from time t14 to time t15, the power storage device 11 supplies power to the system power supply 40 and the load device 60 via the power stand 20. At time t15, the user of the vehicle 10 starts using the vehicle 10. Due to the use of the vehicle 10, the electrical connection between the vehicle 10 and the power stand 20 is released, and the power utilization control of the vehicle 10 ends.

[0046] The standby time of the vehicle 10 is set in advance by the user of the vehicle 10 via the user terminal 80. Specifically, the value set in the user terminal 80 through the HMI device 82 is reflected in the ECU 15 by communication between the communication device 83 and the communication device 16. The standby time may be set as a default in the ECU 15, and is not essential.

[0047] Fig. 3 is a flow diagram executed by the ECU 15, the power station 20, the power equipment 30, the server 70, and the user terminal 80. Fig. 4 is a flow diagram showing a continuation of the flow shown in Fig. 3.

[0048] In step S1, the ECU 15 determines whether or not timer charging is completed. Specifically, in this embodiment, it determines whether or not the scheduled departure time has passed.

[0049] If the scheduled departure time has not passed (No in step S1), the process of S1 is repeated. If the scheduled departure time has passed (YES in step S1), it is determined in step S3 whether the vehicle 10 has departed.

[0050] If vehicle 10 has departed (YES in step S3), the flow proceeds to step 9. On the other hand, if vehicle 10 has not departed, ECU 15 keeps charging relay 18 ON in step S5.

[0051] In step S7, the ECU 15 judges whether or not the vehicle 10 has passed a predetermined waiting time. The waiting time is a fixed period starting from the scheduled departure time. The predetermined period may be arbitrarily set by the user through the HMI device 82 of the user terminal 80. Also, in past timer charging, the server 70 may set the predetermined period based on the difference between the scheduled departure time and the actual time when the vehicle 10 departed. If the waiting time has not passed (No in step S7), the flow returns to step S3, and the ECU 15 repeats the process again. On the other hand, if the waiting time has passed (Yes in step S7), in step S9, the ECU 15 transmits a vehicle state notification of the vehicle 10 to the server 70. The vehicle state notification includes information on whether the vehicle 10 has departed and information indicating the current SOC of the power storage device 11. Also, the vehicle state notification may include information indicating the start time of charging / discharging.

[0052] In step S11, the server 70 determines whether or not a vehicle state notification has been received. If the server 70 has not received the vehicle state notification from the ECU 15 (No in step S11), the server 70 repeats step S11. If the server 70 has received the vehicle state notification from the ECU 15 (YES in step S11), the flow proceeds to step S15.

[0053] In step S15, the server 70 acquires information via the communication device 74. The information includes weather information for the area in which the solar panel 31 is installed.

[0054] In step S17, the server 70 selects a command related to power utilization control. The command is selected from among a controllable command (charging), a controllable command (discharging), a control stop command, and a control stop command.

[0055] FIG. 5 is a flow chart for explaining in detail the command selection method related to the power utilization control in step S17.

[0056] In step S201, the server 70 judges whether the vehicle has departed. This judgment is based on information included in the vehicle state notification received from the ECU 15 in step S11. If the server 70 judges that the vehicle has departed (Yes in step S201), the server 70 selects a control stop command in step S209. If the server 70 judges that the vehicle has not departed (No in step S201), the flow proceeds to step S202.

[0057] In step S202, the server 70 determines whether the control period has expired. The control period is a predetermined period starting from the start of control, during which power utilization control is carried out. The predetermined period is set in the server in advance. Alternatively, the user may set it arbitrarily in advance.

[0058] If the server 70 determines that the control period has expired (No in step S202), the server 70 selects a control stop command in step S209. If the server 70 determines that the control period has not expired (No in step S202), the flow proceeds to step S203.

[0059] In step S203, the server 70 determines whether the current SOC state of the power storage device 11 is within the SOC set range. This determination is based on information included in the vehicle state notification received from the ECU 15 in step S11. If the server 70 determines that the SOC state of the power storage device 11 is not within the SOC set range (No in step S203), the server 70 selects a control stop command in step S208. If the server 70 determines that the SOC state of the power storage device 11 is within the SOC set range (Yes in step S203), the flow proceeds to step S204.

[0060] In step S204, the server 70 determines whether or not there is surplus power in the power facility 30. This determination is based on the information acquired in step S15. Specifically, in this embodiment, based on the weather information, calendar, and time of day in the area where the solar panel 31 is installed, if it is sunrise and the weather is fine, the server 70 determines that there is surplus power.

[0061] If the server 70 determines that there is surplus power (Yes in step S204), the server 70 selects a controllable command (charging) in step S206. If the server 70 determines that there is no surplus power (No in step S204), the flow proceeds to step S205.

[0062] In step S205, the server 70 determines whether or not the price of the power supplied from the system power source 40 is higher than the price of the power stored in the power storage device 11. If the server 70 determines that the price of the power supplied from the system power source 40 is higher than the price of the power stored in the power storage device 11, the server 70 determines to issue a control possible command (discharge) in step S207. If the server 70 determines that the price of the power supplied from the system power source 40 is not higher than the price of the power stored in the power storage device 11, the server 70 selects a control stop command in step S208.

[0063] 3, an example of the process will be described. In step S19, the server 70 transmits to the ECU 15 the control command selected by the server 70 in step S17.

[0064] In step S21, the ECU 15 determines whether or not the control command received from the server 70 in step S19 is a controllable command. If the ECU 15 determines that the control command is not a controllable command, the flow proceeds to step S23.

[0065] In step S23, ECU 15 stops driving the electric power utilization control, and in step S25, ECU 15 turns off charging relay 18. If the electric power utilization control has already been stopped, this state is maintained. Specifically, ECU 15 stops control of power output device 14 and turns off charging relay 18. After that, the flow proceeds to step S47.

[0066] In step S27, the ECU 15 transmits a control command to the power facility 30 and the communication devices 25, 36 of the power station 20. The control command transmitted by the ECU 15 includes information on either charging or discharging.

[0067] In step S29, the electric power equipment 30 determines whether or not a controllable command has been received from the ECU 15. If the controllable command has not been received (No in step S29), the process of step S29 is repeated. If the controllable command has been received (Yes in step S29), in step S31, the electric power equipment 30 performs driving associated with the power utilization control.

[0068] Specifically, when the controllable command received in step S29 includes charging information, the power equipment 30 is driven to charge the power storage device 11. More specifically, the CPU 34 of the power equipment 30 controls the PCU 32 to supply the power generated by the solar panel 31 to the power storage device 11.

[0069] Furthermore, when the controllable command received in step S29 includes information on discharging, the power equipment 30 drives the power storage device 11 to discharge. In detail, the CPU 34 of the power equipment 30 controls the PCU 32 to supply the power discharged by the power storage device 11 to the distribution board 50.

[0070] In step S33, the power stand 20 determines whether or not a controllable command has been received from the ECU 15. If the controllable command has not been received (No in step S33), the process of step S33 is repeated. If the controllable command has been received (Yes in step S33), the power stand 20 turns on the relay 23 in step S33. The above control is the same regardless of charging or discharging.

[0071] In step S37, the ECU 15 transmits a control start notification to the user terminal 80. In step S39, the user terminal 80 determines whether or not the control start notification has been received from the ECU 15. If the control start notification has not been received (No in step S39), the user terminal 80 repeats the process of step S39. If the control start notification has been received (Yes in step S39), the flow proceeds to step S41.

[0072] In step S41, the user terminal 80 determines whether the control start notification received in step S39 is the first one. If the control start notification is not the first one (No in step S41), the flow proceeds to step S61. If the control start notification is the first one (Yes in step S41), in step S43, the user terminal 80 notifies the user of the vehicle 10 via the HMI device 82 that the vehicle 10 has started power utilization control.

[0073] In step S45, ECU 15 performs driving associated with power utilization control. Specifically, if the control command received in step S21 contains charging information, ECU 15 controls power output device 14 to start charging power storage device 11 through power stand 20 with surplus power from solar panel 31. On the other hand, if the control command received in step S21 contains discharging information, ECU 15 controls power output device 14 to discharge power from power storage device 11 and supply it to power facility 30.

[0074] In step S47, the ECU 15 determines whether the control command transmitted by the server 70 to the ECU 15 in step S19 is a control stop command. If the ECU 15 has not received the control stop command (No in step S47), the flow proceeds to step S3. If the ECU 15 has received the control stop command (Yes in step S47), the flow proceeds to step S49. In step S49, the ECU 15 transmits the control stop command to the power facility 30 and the power stand 20.

[0075] In step S51, the electric power equipment 30 determines whether or not it has received a control stop command from the ECU 15. If the electric power equipment 30 has not received the control stop command (No in step S51), the electric power equipment 30 repeats the process of step S51. If the electric power equipment 30 has received the control stop command (Yes in step S51), in step S53, the electric power equipment 30 stops driving associated with the power utilization control in accordance with the control stop command from the CPU 34, and the control process ends.

[0076] In step S55, the power stand 20 determines whether or not a control stop command has been received from the ECU 15. If the power stand 20 has not received the control stop command (No in step S55), the power stand 20 repeats the process of step S55. If the power stand 20 has received the control stop command (Yes in step S55), in step S57, the controller 24 turns off the relay 23, and the control process ends.

[0077] In step S59, the ECU 15 provides a completion notification to the user terminal 80 and the server 70. The completion notification may include information indicating the charging / discharging end time.

[0078] In step S61, the user terminal 80 determines whether or not a completion notification has been received from the ECU 15. If a completion notification has not been received from the user terminal 80 (No in step S61), the user terminal 80 repeats the process of step S61. If a completion notification has been received from the user terminal 80 (Yes in step S61), in step S63, the user terminal 80 notifies the user of the vehicle 10 of the completion of power utilization control via the HMI device 82, and the control process of the user terminal 80 ends.

[0079] In step S65, the server 70 determines whether or not a completion notification has been received from the ECU 15. If the completion notification has not been received from the server 70 (No in step S65), the server 70 repeats the process of step S65. If the completion notification has been received from the server 70 (Yes in step S65), the control process of the server 70 ends.

[0080] As described above, in this embodiment, ECU 15 determines that vehicle 10 has not departed even after timer charging is completed, and notifies server 70 of the vehicle state after a predetermined waiting time has elapsed. Server 70, which has received the vehicle state, selects a control command for power utilization control based on weather information acquired by communication device 74, and commands ECU 15 to control power utilization. This makes it possible to prevent restrictions on charging and discharging of power storage device 11 from being imposed until the user departs vehicle 10 after timer charging.

[0081] In the above embodiment, the power utilization control is performed within the SOC setting range, but the present disclosure is not limited to this. For example, the power output device 14 may be controlled to charge and discharge within a range higher than the lower limit SOC set by the user of the vehicle 10.

[0082] In the above embodiment, the power storage device 11 is charged and discharged by the power utilization control, but the present disclosure is not limited to this. For example, the power storage device 11 may be configured to be capable of at least one of charging and discharging.

[0083] In the above embodiment, the power utilization control is performed by the server 70, but the present disclosure is not limited to this. For example, the ECU 15 may receive weather information or the like through the communication device 16 of the vehicle 10 to determine whether or not to implement the power utilization control.

[0084] In the above embodiment, the necessity of the power utilization control command is determined based on the weather information acquired by the server 70, but the present disclosure is not limited to this. For example, the server 70 may make the determination based on the power rate provided by the management company that manages the grid power source 40. Specifically, the server 70 acquires information on the power rate of the power stored in the power storage device 11 from the ECU 15. When the power rate of the power storage device 11 is lower than the power rate provided by the management company that manages the grid power source 40, the server 70 transmits a power utilization control command to the ECU 15, and the ECU 15 discharges the power storage device 11 and supplies it to the load device 60 connected to the power facility 30.

[0085] In the above embodiment, in the power utilization control, charging of the power storage device 11 is started by using surplus power from the solar panel 31 of the power facility 30, but the present disclosure is not limited to this. For example, the power facility 30 may be capable of generating power using renewable energy and may include a power generation device that supplies power to the load device 60. The renewable energy includes wind power, geothermal power, hydroelectric power, biomass, and the like.

[0086] In the above embodiment, the server 70 determines that there is surplus power based on the weather information acquired by the server 70 and issues a power utilization control command to the ECU 15, but the present disclosure is not limited to this. For example, the ECU 15 may acquire information from the HEMS to determine the presence or absence of surplus power. The information from the HEMS includes the amount of power generated by the solar panel 31, the amount of power consumed by the load device 60, the amount of power supplied from the grid power source 40, the power rate for the power supplied from the grid power source 40, and the selling price of the power generated by the solar panel 31. The surplus power in this case is the power that remains surplus even after the power generated by the solar panel 31 is supplied to the load device 60.

[0087] In the above embodiment, in step S202, the server 70 determines that the power utilization control is to be stopped when the vehicle departs, but various conditions can be adopted for stopping the power utilization control.

[0088] For example, it may be determined to stop power utilization control when at least one of the following conditions is met: the number of times charging relay 18 has been activated exceeds a predetermined number; the degree of deterioration indicating the deterioration state of storage device 11 exceeds a predetermined value; or the accumulated charge / discharge time of charging and discharging power converter 13 exceeds a predetermined value.

[0089] A case will be described where power utilization control is not implemented when the number of times that charging relay 18 has been activated is equal to or greater than a predetermined number. ECU 15 stores information indicating the number of times that charging relay 18 has been activated. The vehicle state notification in step S9 above includes information indicating the number of times that charging relay 18 has been activated. When server 70 determines that the number of times that charging relay 18 has been activated is equal to or greater than a predetermined value, it determines to stop power utilization control.

[0090] A case will be described where power utilization control is not implemented when the degradation level indicating the degradation state of the power storage device 11 is equal to or greater than a predetermined value. The ECU 15 calculates the degradation level indicating the degradation state of the power storage device 11, and stores information indicating the degradation level of the power storage device 11. The vehicle state notification in the above step S9 includes information indicating the degradation level of the power storage device 11. When the server 70 determines that the degradation level indicating the degradation state of the power storage device 11 is equal to or greater than a predetermined value, it determines to stop the power utilization control.

[0091] A case will be described where power utilization control is stopped when the accumulated charge / discharge time of charging and discharging of the power converter 13 becomes equal to or greater than a predetermined value. The ECU 15 stores information indicating the accumulated charge / discharge time of charging and discharging of the power converter 13. The vehicle state notification in step S9 includes information indicating the accumulated charge / discharge time of charging and discharging of the power converter 13. When the server 70 determines that the accumulated charge / discharge time of charging and discharging of the power converter 13 is equal to or greater than a predetermined value, it determines to stop the power utilization control.

[0092] 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 scope of the claims, and it is intended to include all modifications within the scope and meaning equivalent to the scope of the claims. [Explanation of symbols]

[0093] 1 Power system, 10 Vehicle, 11 Energy storage device, 12, 22 Connector, 13 Power converter, 14 Power output device, 16, 25, 36, 74, 83 Communication device, 17, 82 Device, 18 Charging relay, 20 Power stand, 21 Power cable, 23 Relay, 24 Controller, 30 Power equipment, 31 Solar panel, 35, 73 Memory, 40 System power supply, 50 Distribution board, 60 Load device, 70 Server, 71, 81 Control device, 80 User terminal.

Claims

1. A control device for controlling a vehicle, The vehicle includes a power storage device and a power supply device. the power supply device is configured to be capable of at least one of charging the power storage device using electric power from outside the vehicle and discharging electric power from the power storage device to outside the vehicle; The control device includes a processor and a memory that stores a process executed by the processor. The processor controls the power supply device so that the target SOC set by a user of the vehicle becomes the target SOC at the scheduled departure time, The processor, when the vehicle has not departed when the scheduled departure time has passed, causes the power supply device to perform at least one of charging and discharging in a range higher than a lower limit SOC set by the user of the vehicle.

2. the power supply device is configured to be capable of at least one of charging the power storage device using electric power from an electric power facility provided outside the vehicle and discharging electric power from the power storage device to the electric power facility, The power equipment is connected to an equipment having at least one power load; 2. The control device according to claim 1, wherein when an electricity price for the electricity consumed by the power load is higher than an electricity price for the electricity charged to the power storage device, the processor causes the power supply device to discharge the electricity from the power storage device to the power equipment.

3. The power facility includes a power generation device capable of generating power using renewable energy and supplying power to the electrical load; The control device according to claim 1 , wherein the control device causes the power supply device to charge the power storage device when the control device determines that surplus power is being generated in the power generation device.

4. The vehicle further includes a relay provided in an electric circuit between the power supply device and the power storage device, The control device according to claim 1 , wherein the processor turns on the relay from the scheduled departure time onward.

5. The processor, When the number of times the relay is activated is equal to or greater than a predetermined number of times, A deterioration degree indicating a deterioration state of the power storage device becomes equal to or greater than a predetermined value; When the integrated charge / discharge time of the power supply device becomes equal to or greater than a predetermined value, The control device according to claim 4, wherein in any one of the above cases, the power utilization control is not performed.

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