Control device

Abstract

The invention provides a control device. The control device controls a vehicle provided with an electricity storage device and a power converter. The power converter is formed so as to be able to charge the power storage device using power from the outside of the vehicle and / or discharge power from the power storage device to the outside of the vehicle. The control device includes a CPU and a memory that stores a process executed by a processor. The CPU controls the power supply device so as to reach a target SOC set by a user of the vehicle at a predetermined departure time. The CPU causes the power supply device to charge and / or discharge within a range higher than the lower limit SOC when the vehicle does not depart after the elapse of the predetermined departure time.

Description

Technical Field

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

[0002] The vehicle described in Japanese Patent Application Laid-Open No. 2021-177697 includes a power storage device, which is configured to be charged with power supplied from a power station. Furthermore, the vehicle can set a scheduled departure time and implement timer charging to complete charging before the scheduled departure time. Summary of the invention

[0003] In recent years, research has been conducted to effectively utilize the surplus power in home appliances by charging the vehicle-mounted power storage device during the time period when the power generated by renewable energy is at its peak. In addition, research has also been conducted to use the power in the vehicle's power storage device to compensate for the power consumption in home appliances when the vehicle is connected to a power station.

[0004] On the other hand, in the above-mentioned vehicle, if the vehicle is connected to the power station even after the scheduled departure time has passed, charging and discharging with the power station cannot be performed.

[0005] Therefore, there is a problem that the power storage device of the vehicle cannot be charged with the remaining power in the equipment at home, etc. even if the vehicle is connected to the power station after the scheduled departure time. In addition, there is a problem that the power storage device of the vehicle cannot be supplied to the equipment at home, etc. even if the vehicle is connected to the power station after the scheduled departure time.

[0006] The present disclosure has been made in view of the above-mentioned problems and aims to provide a control device for controlling a vehicle so that at least one of charging or discharging can be performed with an external device or the like when the vehicle is connected to a power station after a scheduled departure time has passed.

[0007] The control device involved in the present disclosure is a control device for controlling a vehicle.

[0008] The vehicle includes a power storage device and a power supply device.

[0009] The power supply device is configured to be capable of at least one of charging the power storage device with power from outside the vehicle and discharging the power from the power storage device to outside the vehicle.

[0010] The control device includes a processor and a memory storing a process executed by the processor.

[0011] The processor controls the power supply device so that the target SOC set by a user of the vehicle is achieved at a scheduled departure time.

[0012] The processor causes the power supply device to at least one of charge or discharge within a range higher than a lower limit SOC set by the user of the vehicle when the vehicle has not started before the scheduled departure time has passed.

[0013] According to the control device according to the present disclosure, when the vehicle is connected to the power station after the scheduled departure time has passed, at least one of charging and discharging can be performed with an external device or the like. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Features, advantages, and technical and industrial significance of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings, in which like reference numerals represent like elements, and in which:

[0015] Figure 1 This is a diagram schematically showing the overall configuration of an electric power system including a vehicle according to the first embodiment.

[0016] Figure 2 This is a diagram showing an example of the usable SOC range and the time transition of the SOC.

[0017] Figure 3 This is a flowchart executed by the ECU 15 , the power station 20 , the power equipment 30 , the server 70 , and the user terminal 80 .

[0018] Figure 4 It is shown Figure 3 A flowchart subsequent to the process shown.

[0019] Figure 5 This is a flowchart explaining in detail the command selection method related to the power utilization control in S17. DETAILED DESCRIPTION

[0020] The embodiments of the present disclosure will be described with reference to the accompanying drawings. In the drawings referred to below, the same or corresponding components are denoted by the same reference numerals.

[0021] Figure 1 The figure schematically shows the overall configuration of a power system including a vehicle according to Embodiment 1. Power system 1 includes a vehicle 10 , a power station 20 , power equipment 30 , a system power supply 40 , a switchboard 50 , a load device 60 , a server 70 , and a user terminal 80 .

[0022] The vehicle 10 and the power station 20 are electrically connectable via a charging cable. The vehicle 10 is a vehicle of a certain user and is configured to be plug-in chargeable, and includes, for example, a hybrid electric vehicle, a battery electric vehicle, and the like.

[0023] The vehicle 10 includes a power storage device 11 , a connector 12 , a power converter 13 , a power output device 14 , a home energy management system (ECU) 15 , a communication device 16 , a human machine interface (HMI) device 17 , a charging relay 18 , and a system main relay (SMR) 19 .

[0024] The vehicle 10 can charge the power storage device 11 using the power supplied from the power station 20 . The vehicle 10 can also discharge the power of the power storage device 11 to the power station 20 .

[0025] The power storage device 11 is a chargeable and dischargeable secondary battery. The connector 12 can be connected to a connector 22 provided at the top end of a power cable 21 of a power station 20 .

[0026] 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 station 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. In addition, the power converter 13 converts the power discharged from the power storage device 11 into power that can be received by the power station 20, and supplies power to the power station 20. The power converter 13 includes, for example, a bidirectional AC / DC converter.

[0027] The power output device 14 uses the electric power stored in the power storage device 11 to generate the driving force of the vehicle 10. Specifically, the power output device 14 generates the driving force of the vehicle 10 according to the driving command signal from the ECU 15, and outputs the generated driving force to the driving wheels of the vehicle 10. In addition, the power output device 14 discharges when receiving the power generation command signal from the ECU 15, and supplies the electric power to the power storage device 11.

[0028] The vehicle 10 has a plurality of sensors for detecting various physical quantities necessary for controlling the vehicle 10, such as a monitoring sensor for detecting the state (voltage, current, temperature, etc.) of the power storage device 11. Each of these sensors outputs the detection result to the ECU 15. In addition, the vehicle 10 accumulates data on the power cost of the power charged to the power storage device 11. The accumulated data is output to the ECU 15. The price of the power accumulated in the power storage device 11 is calculated based on the data.

[0029] The ECU 15 has a central processing unit (CPU) and a memory (read only memory (ROM) and random access memory (RAM), etc.) 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 with the communication devices 25, 74, and 83 of the power station 20, the power equipment 30, the server 70, and the user terminal 80 respectively provided outside the vehicle by wireless or wired means via the communication device 16.

[0030] The communication device 16 is an interface for communicating with equipment outside the vehicle (power station 20, power equipment 30, server 70, user terminal 80, etc.) The communication device 16 sends information transmitted from the ECU 15 to the equipment outside the vehicle, or transmits information received from the equipment outside the vehicle to the ECU 15.

[0031] The HMI device 17 is a device that provides various information to the user of the vehicle 10 or accepts operations from the user of the vehicle 10. The HMI device 17 includes a display including a touch panel, a speaker, and the like.

[0032] The power station 20 is a facility for charging and discharging the vehicle 10. The power station 20 includes a power cable 21, a connector 22, a relay 23, a controller 24, and a communication device 25. The power station 20 is electrically connected to the switchboard 50 via the PCU 32.

[0033] One end of the power cable 21 is connected to the relay 23, and the other end is provided with a connector 22. When power is supplied to or received 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 the controller 24.

[0034] 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 the energy of sunlight. The solar panel 31 is electrically connected to the PCU 32. The solar panel 31 generates direct current by receiving sunlight, and supplies the generated direct current to the PCU 32.

[0035] The PCU 32 includes various power conversion devices (not shown), a control device, and a communication device 36. The control device includes a CPU 34 and a memory 35. The PCU 32 converts the DC current supplied from the solar panel 31 into AC current, adjusts the voltage and frequency of the power of the power storage device 11, and supplies it to the power storage device 11, the system power supply 40, and the load device 60 via the power station 20 and the switchboard 50. Alternatively, the PCU 32 adjusts the frequency and voltage of the power of the power storage device 11 supplied via the power station 20, and supplies it to the system power supply 40. The communication device 36 is formed to be able to communicate with the communication device 16 of the vehicle 10 in a wireless or wired manner.

[0036] System power supply 40 is a commercial power source supplied from a power company. System power supply 40 supplies power to power storage device 11 and load device 60 via switchboard 50. Switchboard 50 converts the voltage of power supplied from system power supply 40 into a low voltage so that load device 60 and the like can use it.

[0037] The load device 60 is any electric device that operates by receiving electric power from the switchboard 50. The load device 60 is, for example, a household electric appliance or an industrial manufacturing facility.

[0038] The server 70 is formed by 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 performed by the control device 71 are executed by software processing, that is, the CPU 72 reads out a program stored in the memory 73. Various controls performed by the control device 71 are not limited to software processing, and can also be processed by dedicated hardware (electronic circuit).

[0039] The communication device 74 of the server 70 can communicate with the communication device 16 of the vehicle 10 wirelessly, for example. The communication device 74 can obtain weather information, power price information, etc. via a communication network such as the Internet. In addition, the power price information is provided from the server of the management company that manages the system power supply 40.

[0040] In addition, the server 70 stores the charge and discharge history information indicating the past charge and discharge times of the vehicle 10 and the electricity charges during the past charge and discharge in the memory 73 .

[0041] The user terminal 80 is a communication terminal that can be carried by a user of the vehicle 10 , such as a smartphone, etc. The user terminal 80 includes a control device 81 , an HMI device 82 , and a communication device 83 .

[0042] 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 the information stored in the memory, the content 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 or accepts the user's operation. The communication device 83 can communicate with the communication device 16 of the vehicle 10 in a wireless manner. Various functions of the power system 1 formed as described above are described.

[0043] The on-vehicle 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 power from the power storage device to a load device, and adjusting the power supply and demand balance.

[0044] The user of the vehicle 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 refers to control to make the state of charge (SOC) of the power storage device 11 reach the target SOC at the scheduled departure time. In timer charging, in order to suppress the situation where the SOC of the power storage device of the vehicle will decrease when setting off, the vehicle is charged in a manner that makes the power storage device reach the target SOC at the scheduled departure time. The target SOC can be a value set by the user or a value set by default. In addition, the scheduled departure time can be a time arbitrarily set by the user or a time estimated based on the actual usage performance of the vehicle.

[0045] On the other hand, it is expected that the user will not use the vehicle even if the scheduled departure time comes. In this case, in order to maintain the set target SOC at departure even after the scheduled departure time has passed, the vehicle may fail to effectively utilize the power in the power storage device.

[0046] Therefore, the vehicle 10 involved in this embodiment 1 has a structure for suppressing the occurrence of the above-mentioned situation. Specifically, the vehicle 10 is provided with a power converter 13 for making the power storage device 11 chargeable and dischargeable. When the power converter 13 is connected to the power station 20 via the power cable 21, the vehicle 10 implements power utilization control within the SOC usable range arbitrarily set by the user of the power storage device 11. The SOC usable range is composed of the values ​​of the lower limit SOC and the upper limit SOC. The lower limit SOC is below the target SOC, and the upper limit SOC is set to a value greater than the target SOC.

[0047] The ECU 15 of the vehicle 10 instructs the power station 20 via the communication devices 16 and 25 so that the power utilization control can be performed within the SOC usable range. The power station 20 opens and closes the relay 23 according to the control instruction of the ECU 15.

[0048] With such a configuration, even if a user does not use the vehicle 10 after the scheduled departure time t10 of the vehicle 10 has passed, it is possible to perform power utilization control within the usable SOC range using the power storage device 11 .

[0049] The target SOC, upper limit SOC, and lower limit SOC values ​​are set by default in the ECU 15. Alternatively, the user of the vehicle 10 may set them in advance through the user terminal 80. The values ​​set to the user terminal 80 via the HMI device 82 are reflected in the ECU 15 through communication between the communication device 83 and the communication device 16.

[0050] In the above embodiment, an example of a method in which the power system 1 includes the power equipment 30 and the distribution board 50 is shown, but the present disclosure is not limited to this. For example, the power system 1 may also have the function of a home energy management service (HEMS). Specifically, the power of the system power supply 40 is supplied to the load device 60 via a smart meter through a distribution board corresponding to the HEMS. The power equipment 30 has a HEMS controller. The HEMS controller is formed to be able to communicate with the distribution board corresponding to the HEMS, the load device 60, and the PCU 32. Thus, the HEMS controller can obtain information about each electrical machine and control the operation of each load device 60.

[0051] Figure 2 : is a diagram showing an example of the usable SOC range and the time transition of the SOC. Line k1 represents the target SOC. Line k2 represents the upper limit SOC of the usable SOC range, and line k3 represents the lower limit SOC of the usable SOC range. In addition, in the present embodiment, the ranges of the target SOC, the upper limit SOC, and the lower limit SOC are, for example, 60%, 90%, and 40%. Line L1 represents the time transition of the actual SOC. Figure 2 , illustrating the time lapse of line L1.

[0052] Time t10 to time t11 indicates a time period for timer charging. Time t11 is a scheduled departure time of the vehicle 10. The vehicle 10 is charged so that the SOC of the power storage device 11 reaches the target SOC at time t11.

[0053] The time from time t11 to time t12 represents the waiting time of the vehicle. The lower limit SOC of the vehicle 10 waits until time t12 passes to maintain the target SOC. In addition, during the waiting time, power is required to maintain the startup state of the ECU 15, etc. Therefore, by setting the waiting time to about 15 minutes, for example, the power consumption in the ECU 15 is suppressed from becoming excessive.

[0054] Time t12 to time t15 indicates a time period during which the vehicle 10 implements power utilization control. Specifically, in the time period from time t12 to time t13, surplus power is generated by utilizing the power generation of the solar panel, and the power storage device 11 is charged via the power station 20. Thereafter, when the SOC reaches the upper limit SOC of line k2, the power supply from the power station 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 station 20. At time t15, the user of the vehicle 10 starts to use the vehicle 10. The electrical connection between the vehicle 10 and the power station 20 is released by using the vehicle 10, and the power utilization control of the vehicle 10 ends.

[0055] The user of the vehicle 10 sets the waiting time of the vehicle 10 in advance using the user terminal 80. Specifically, the value set to the user terminal 80 via the HMI device 82 is reflected to the ECU 15 through the communication between the communication device 83 and the communication device 16. The waiting time may be set by default in the ECU 15 or may not be required.

[0056] Figure 3 This is a flowchart executed by the ECU 15 , the power station 20 , the power equipment 30 , the server 70 , and the user terminal 80 . Figure 4 It is shown Figure 3 A flowchart subsequent to the process shown.

[0057] In S1, the ECU 15 determines whether the timer charging is completed. Specifically, in the present embodiment, it is determined whether the scheduled departure time has passed.

[0058] If the scheduled departure time has not passed (No in S1), the process of S1 is repeated. If the scheduled departure time has passed (Yes in S1), it is determined in S3 whether the vehicle 10 has departed.

[0059] When the vehicle 10 has started (YES in S3), the process proceeds to step 9. On the other hand, when the vehicle 10 has not started, the ECU 15 maintains the charging relay 18 on in S5.

[0060] In S7, the ECU 15 determines whether the vehicle 10 has passed the predetermined waiting time. The waiting time refers to a certain period starting from the scheduled departure time. The user may arbitrarily set the predetermined period via the HMI device 82 of the user terminal 80. In addition, in the 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 actually departs. If the waiting time has not passed ("No" in S7), the process returns to S3, and the ECU 15 repeats the process again. On the other hand, if the waiting time has passed ("Yes" in S7), in S9, the ECU 15 sends a vehicle status notification of the vehicle 10 to the server 70. The vehicle status notification includes information on whether the vehicle 10 has departed and information on the SOC of the power storage device 11 indicating the current status. In addition, the vehicle status notification may include information indicating the start time of charging and discharging.

[0061] In S11, the server 70 determines whether the vehicle status notification is received. If the server 70 does not receive the vehicle status notification from the ECU 15 ("No" in S11), S11 is repeated. If the server 70 receives the vehicle status notification from the ECU 15 ("Yes" in S11), the process moves to S15.

[0062] In S15, the server 70 acquires information via the communication device 74. The information includes weather information in the area where the solar panel 31 is installed.

[0063] In S17, server 70 selects a command related to power utilization control. As for the command, any one of a controllable command (charging), a controllable command (discharging), a control suspension command, or a control stop command is selected.

[0064] Figure 5 This is a flowchart explaining in detail the command selection method related to the power utilization control in S17.

[0065] In S201, the server 70 determines whether the vehicle has started. This determination is made based on the information included in the vehicle status notification received from the ECU 15 in S11. If the server 70 determines that the vehicle has started ("Yes" in S201), the server 70 selects a control stop command in S209. If the server 70 determines that the vehicle has not started ("No" in S201), the process moves to S202.

[0066] In S202, the server 70 determines whether the control period has been exceeded. The control period refers to a predetermined period starting from the start of control, during which power utilization control is performed. The predetermined period is preset in the server. Alternatively, the user may arbitrarily set the period in advance.

[0067] If the server 70 determines that the control period has expired (No in S202), the server 70 selects a control stop command in S209. If the server 70 determines that the control period has not expired (No in S202), the flow moves to S203.

[0068] In S203, the server 70 determines whether the current state of the SOC of the power storage device 11 is within the SOC setting range. This determination is made based on the information included in the vehicle state notification received from the ECU 15 in S11. When the server 70 determines that the state of the SOC of the power storage device 11 is not within the SOC setting range ("No" in S203), the server 70 selects a control stop instruction in S208. When the server 70 determines that the state of the SOC of the power storage device 11 is within the SOC setting range ("Yes" in S203), the process transfers to S204.

[0069] In S204, the server 70 determines whether there is surplus power in the power device 30. This determination is made based on the information obtained in S15. Specifically, in this embodiment, when it is determined to be sunrise time based on weather information, calendar, and time in the area where the solar panel 31 is installed, and the weather is clear, the server 70 determines that there is surplus power.

[0070] If the server 70 determines that there is surplus power (YES in S204), the server 70 selects a controllable command (charging) in S206. If the server 70 determines that there is no surplus power (NO in S204), the flow moves to S205.

[0071] In S205, the server 70 determines whether the price of the power supplied from the system power supply 40 is higher than the price of the power stored in the power storage device 11. When the server 70 determines that the price of the power supplied from the system power supply 40 is higher than the price of the power stored in the power storage device 11, the server 70 determines that the control instruction (discharge) is possible in S207. When the server 70 determines that the price of the power supplied from the system power supply 40 is not higher than the price of the power stored in the power storage device 11, the server 70 selects the control suspension instruction in S208.

[0072] Return to Figure 3 , showing an example of the processing. In S19, the server 70 sends the control command selected by the server 70 in S17 to the ECU 15.

[0073] In S21, the ECU 15 determines whether the control command received from the server 70 in S19 is a controllable command. If the ECU 15 determines that it is not a controllable command, the flow moves to S23.

[0074] In S23, the ECU 15 stops driving the power utilization control, and in S25, the ECU 15 turns off the charging relay 18. If the power utilization control is stopped, the state is maintained. Specifically, the ECU 15 stops controlling the power output device 14 and turns off the charging relay 18. Then, the process moves to S47.

[0075] In S27, the ECU 15 sends a control command to the communication devices 25 and 36 of the power equipment 30 and the power station 20. The controllable command sent by the ECU 15 includes any information on charging or discharging.

[0076] In S29, the power device 30 determines whether a controllable command is received from the ECU 15. If a controllable command is not received (No in S29), the process of S29 is repeated. If a controllable command is received (Yes in S29), in S31, the power device 30 performs driving accompanied by power utilization control.

[0077] Specifically, when the controllable command received in S29 includes charging information, power equipment 30 is driven to charge power storage device 11. Specifically, CPU 34 of power equipment 30 controls PCU 32 to supply power generated by solar panel 31 to power storage device 11.

[0078] If the controllable command received in S29 includes discharge information, power equipment 30 drives to discharge power storage device 11. Specifically, CPU 34 of power equipment 30 controls PCU 32 to supply the power discharged from power storage device 11 to switchboard 50.

[0079] In S33, the power station 20 determines whether a controllable command is received from the ECU 15. If a controllable command is not received (No in S33), the process of S33 is repeated. If a controllable command is received (Yes in S33), the power station 20 turns on the relay 23 in S33. The above control is performed in the same manner regardless of charging and discharging.

[0080] In S37, the ECU 15 sends a control start notification to the user terminal 80. In S39, the user terminal 80 determines whether the control start notification is received from the ECU 15. If the control start notification is not received ("No" in S39), the user terminal 80 repeats the process of S39. If the control start notification is received ("Yes" in S39), the process moves to S41.

[0081] In S41, the user terminal 80 determines whether the control start notification received in S39 is the first time. If the control start notification is not the first time ("No" in S41), the process transfers to S61. If the control start notification is the first time ("Yes" in S41), in S43, the user terminal 80 notifies the user of the vehicle 10 using the HMI device 82 that the vehicle 10 has started the power utilization control.

[0082] In S45, the ECU 15 performs driving accompanied by power utilization control. Specifically, when the control command received in S21 includes charging information, the ECU 15 controls the power output device 14 to start charging the power storage device 11 via the power station 20 using the surplus power of the solar panel 31. On the other hand, when the control command received in S21 includes discharging information, the ECU 15 controls the power output device 14 to discharge the power of the power storage device 11 and supply it to the power equipment 30.

[0083] In S47, the ECU 15 determines whether the control instruction sent by the server 70 to the ECU 15 in S19 is a control stop instruction. If the ECU 15 does not receive the control stop instruction ("No" in S47), the process moves to S3. If the ECU 15 receives the control stop instruction ("Yes" in S47), the process moves to S49. In S49, the ECU 15 sends a control stop instruction to the power device 30 and the power station 20.

[0084] In S51, the power device 30 determines whether it has received a control stop command from the ECU 15. If the power device 30 has not received the control stop command (No in S51), the power device 30 repeats the process of S51. If the power device 30 has received the control stop command (Yes in S51), in S53, the power device 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.

[0085] In S55, the power station 20 determines whether it has received a control stop command from the ECU 15. If the power station 20 has not received the control stop command (No in S55), the power station 20 repeats the process of S55. If the power station 20 has received the control stop command (Yes in S55), in S57, the controller 24 turns off the relay 23, and the control process ends.

[0086] In 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 time when the charging and discharging is completed.

[0087] In S61, the user terminal 80 determines whether a completion notification is received from the ECU 15. If a completion notification is not received from the user terminal 80 (No in S61), the user terminal 80 repeats the process of S61. If a completion notification is received from the user terminal 80 (Yes in S61), in S63, the user terminal 80 notifies the user of the vehicle 10 of the completion of the power utilization control using the HMI device 82, and the control process of the user terminal 80 ends.

[0088] In S65, the server 70 determines whether it has received a completion notification from the ECU 15. If the completion notification is not received from the server 70 (No in S65), the server 70 repeats the process of S65. If the completion notification is received from the server 70 (Yes in S65), the control process of the server 70 ends.

[0089] As described above, in the present embodiment, the ECU 15 determines whether the vehicle 10 has not started even after the timer charging is completed, and after a predetermined waiting time has passed, notifies the server 70 of the vehicle status. The server 70 that has received the vehicle status selects a control instruction for power utilization control based on weather information obtained by the communication device 74, and instructs the ECU 15 to perform power utilization control. Thus, it is possible to suppress the charging and discharging of the power storage device 11 from being restricted during the period from the timer charging until the user starts the vehicle 10.

[0090] In the above embodiment, the power utilization control is performed within the SOC setting range, but the present disclosure is not limited thereto. For example, the power output device 14 may be controlled to be charged and discharged within a range higher than the lower limit SOC set by the user of the vehicle 10 .

[0091] In the above embodiment, the power storage device 11 is charged and discharged by power utilization control, but the present disclosure is not limited thereto. For example, the power storage device 11 may be charged or discharged.

[0092] In the above embodiment, the server 70 performs power utilization control, but the present disclosure is not limited thereto. For example, the ECU 15 may receive weather information or the like via the communication device 16 of the vehicle 10 to determine whether power utilization control is necessary.

[0093] In the above embodiment, an example is shown in which the necessity of the power utilization control instruction is determined by the weather information obtained by the server 70, but the present disclosure is not limited thereto. For example, the server 70 may also determine based on the power cost provided by the management company that manages the system power supply 40. Specifically, the server 70 obtains information on the power cost of the power stored in the power storage device 11 from the ECU 15. When the power cost of the power storage device 11 is lower than the power cost provided by the management company that manages the system power supply 40, the server 70 sends a power utilization control instruction 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 equipment 30.

[0094] In the above embodiment, in the power utilization control, the power storage device 11 is charged using the surplus power of the solar panel 31 of the power equipment 30, but the present disclosure is not limited to this. For example, the power equipment 30 may also have a power generation device that can generate power using renewable energy and supply power to the load device 60. Renewable energy refers to wind power, geothermal energy, hydropower, biomass, etc.

[0095] In the above embodiment, an example is shown in which the server 70 determines that there is surplus power based on the weather information obtained by the server 70 and instructs the ECU 15 to control the power utilization, but the present disclosure is not limited to this. For example, the ECU 15 can also obtain information from the HEMS to determine whether there is surplus power. In addition, the information from the HEMS refers to the power generation of the solar panel 31, the power consumption of the load device 60, the amount of power supplied from the system power supply 40, the power cost of the power supplied from the system power supply 40, the power selling price of the power generated by the solar panel 31, etc. In addition, the surplus power in this case refers to the power that remains even if the power generated by the solar panel 31 is supplied to the load device 60.

[0096] In the above embodiment, in S202 , the server 70 determines to stop the power utilization control when the vehicle is starting. However, various conditions can be adopted as the case of stopping the power utilization control.

[0097] For example, the case where the number of operations of the charging relay 18 exceeds a predetermined number, the case where the degree of degradation indicating the degradation state of the power storage device 11 exceeds a predetermined value, and the case where the cumulative charge and discharge time of the power converter 13 exceeds a predetermined value may be considered. If at least one of these conditions is met, it may be determined that the power utilization control is stopped.

[0098] The case where the power utilization control is not implemented when the number of operations of the charging relay 18 is greater than the predetermined number of times is described. The ECU 15 stores information indicating the number of operations of the charging relay 18. In addition, the vehicle state notification in the above S9 includes information indicating the number of operations of the charging relay 18. In addition, when the server 70 determines that the number of operations of the charging relay 18 is greater than the predetermined value, it determines to stop the power utilization control.

[0099] The case where the power utilization control is not performed when the degree of degradation indicating the degradation state of the power storage device 11 becomes greater than a predetermined value is described. The ECU 15 calculates the degree of degradation indicating the degradation state of the power storage device 11 and stores information indicating the degree of degradation of the power storage device 11. In addition, the vehicle state notification in S9 includes information indicating the degree of degradation of the power storage device 11. In addition, when the server 70 determines that the degree of degradation indicating the degradation state of the power storage device 11 is greater than a predetermined value, it determines to stop the power utilization control.

[0100] The following describes a case where the power utilization control is stopped when the cumulative charge and discharge time of the power converter 13 becomes longer than a predetermined value. The ECU 15 stores information indicating the cumulative charge and discharge time of the power converter 13. Furthermore, the vehicle state notification in S9 includes information indicating the cumulative charge and discharge time of the power converter 13. Furthermore, when the server 70 determines that the cumulative charge and discharge time of the power converter 13 is longer than a predetermined value, it determines to stop the power utilization control.

[0101] The embodiments disclosed herein are to be considered in all respects as illustrative and non-restrictive. The scope of the present disclosure is indicated by the claims, and all modifications within the meaning and scope equivalent to the claims are intended to be included.

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 with power from outside the vehicle and discharging the power from the power storage device to outside the vehicle. The control device includes a processor and a memory storing 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 is achieved at a scheduled departure time. The processor causes the power supply device to at least one of charge or discharge within a range higher than a lower limit SOC set by the user of the vehicle when the vehicle has not started before the scheduled departure time has passed.

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

3. The control device according to claim 1, wherein: The electric power equipment includes a power generation device that can generate electric power using renewable energy and supply the electric power to an electric load. The control device causes the power supply device to charge the power storage device when it is determined that surplus power is generated in the power generation device.

4. The control device according to any one of claims 1 to 3, wherein: The vehicle further includes a relay provided in a circuit between the power supply device and the power storage device. The processor turns on the relay from the scheduled departure time.

5. The control device according to claim 4, wherein: The processor does not implement power utilization control in any of the following situations: the number of operations of the relay becomes greater than a predetermined number of times, the degree of degradation indicating the degradation state of the power storage device becomes greater than a predetermined value, and the cumulative charge and discharge time of charging and discharging of the power supply device becomes greater than a predetermined value.

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