WO2021261042A1 - 制御方法、制御装置及び制御プログラム - Google Patents

制御方法、制御装置及び制御プログラム Download PDF

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Publication number
WO2021261042A1
WO2021261042A1 PCT/JP2021/012329 JP2021012329W WO2021261042A1 WO 2021261042 A1 WO2021261042 A1 WO 2021261042A1 JP 2021012329 W JP2021012329 W JP 2021012329W WO 2021261042 A1 WO2021261042 A1 WO 2021261042A1
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WIPO (PCT)
Prior art keywords
battery
soc value
vehicle
discharge
information
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2021/012329
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English (en)
French (fr)
Japanese (ja)
Inventor
隆司 阪田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Intellectual Property Corp of America
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Panasonic Intellectual Property Corp of America
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Filing date
Publication date
Application filed by Panasonic Intellectual Property Corp of America filed Critical Panasonic Intellectual Property Corp of America
Priority to CN202180007674.2A priority Critical patent/CN114846719A/zh
Priority to JP2022532311A priority patent/JP7661329B2/ja
Priority to EP21828010.5A priority patent/EP4175120A4/en
Publication of WO2021261042A1 publication Critical patent/WO2021261042A1/ja
Priority to US17/856,714 priority patent/US12485793B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L55/00—Arrangements for supplying energy stored within a vehicle to a power network, i.e. vehicle-to-grid [V2G] arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B60L58/14—Preventing excessive discharging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/16—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH]
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/008—Registering or indicating the working of vehicles communicating information to a remotely located station
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
    • G07C5/0808—Diagnosing performance data
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
    • G07C5/0816—Indicating performance data, e.g. occurrence of a malfunction
    • G07C5/0825—Indicating performance data, e.g. occurrence of a malfunction using optical means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network
    • H02J13/12—Monitoring network conditions, e.g. electrical magnitudes or operational status
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for AC mains or AC distribution networks
    • H02J3/28—Arrangements for balancing of the load in networks by storage of energy
    • H02J3/32—Arrangements for balancing of the load in networks by storage of energy using batteries or super capacitors with converting means
    • H02J3/322—Arrangements for balancing of the load in networks by storage of energy using batteries or super capacitors with converting means the battery being on-board an electric or hybrid vehicle, e.g. vehicle to grid arrangements [V2G], power aggregation, use of the battery for network load balancing, coordinated or cooperative battery charging
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/80—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including monitoring or indicating arrangements
    • H02J7/82—Control of state of charge [SOC]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/549—Current
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2250/00—Driver interactions
    • B60L2250/16—Driver interactions by display
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2260/00—Operating Modes
    • B60L2260/40—Control modes
    • B60L2260/46—Control modes by self learning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2260/00—Operating Modes
    • B60L2260/40—Control modes
    • B60L2260/50—Control modes by future state prediction
    • B60L2260/54—Energy consumption estimation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y04S20/242—Home appliances

Definitions

  • This disclosure relates to a technology for discharging a vehicle battery to an electric device outside the vehicle.
  • V2H Vehicle to Home
  • V2B Vehicle to Building
  • a battery in consideration of reduction of electricity charges and suppression of deterioration of the battery of an electric vehicle, a battery can be used at predetermined time intervals such as midnight time zone and activity time zone.
  • a technique for controlling charging / discharging of a battery of an electric vehicle by setting different target values for charging / discharging in advance is disclosed.
  • the present disclosure has been made in view of the above problems, and an object of the present disclosure is to suppress deterioration of the battery of the vehicle by carefully considering the past usage history of the vehicle by each user.
  • the control method is a control method of a charging / discharging device for charging / discharging a battery of a vehicle, in which a computer acquires the current SOC value of the battery and described the above.
  • the acquired model is obtained by acquiring historical information on the past power consumption of the vehicle and learning the relationship between the past power consumption of the vehicle and the required power consumption when the vehicle is used next time.
  • the prediction information regarding the required power amount is acquired, and it is determined whether or not the current SOC value is larger than the predetermined optimum SOC value for suppressing the deterioration of the battery.
  • the target value of the SOC value of the battery at the time of discharging the battery is calculated based on the current SOC value, the optimum SOC value and the predicted information.
  • the control information instructing the battery to discharge the electric device outside the vehicle until the SOC value of the battery reaches the target value is output to the charging / discharging device.
  • the charge / discharge of the battery is controlled on a rule basis by using a predetermined target value in consideration of suppressing the deterioration of the battery. Therefore, there is a possibility that the deterioration of the battery cannot be suppressed by carefully considering the past usage history of the vehicle by each user. For example, in the prior art, even in a time zone in which it is easily predicted that the user will use the vehicle for a long time in consideration of the user's past vehicle usage history, the target value corresponding to the time zone is used. The battery is charged and discharged. As a result, the electric power required to use the vehicle for a long time cannot be obtained from the battery, which may cause a problem that the vehicle cannot be used as desired by the user.
  • the present inventor has devised the following aspects of the present disclosure as a result of diligent studies on suppressing deterioration of the battery of the vehicle by carefully considering the past usage history of the vehicle by each user. I came to do it.
  • the control method is a control method of a charging / discharging device for charging / discharging a battery of a vehicle, in which a computer acquires the current SOC value of the battery and the past power consumption in the vehicle. To acquire the historical information regarding the amount, and input the acquired historical information into the trained model that has learned the relationship between the past power consumption of the vehicle and the required power amount when the vehicle is used next time. Then, the prediction information regarding the required power amount is acquired, it is determined whether or not the current SOC value is larger than the predetermined optimum SOC value for suppressing the deterioration of the battery, and the current SOC value is the said.
  • the target value of the SOC value of the battery when the battery is discharged is calculated based on the current SOC value, the optimum SOC value, and the predicted information, and the SOC value of the battery is calculated. Is to output to the charging / discharging device the control information instructing to discharge from the battery to the electric device outside the vehicle until the target value is reached.
  • historical information about the past power consumption in the vehicle is input to the trained model which learned the relationship between the past power consumption of the vehicle and the required power amount when the vehicle is used next time.
  • the forecast information regarding the required electric energy when the vehicle is used next time is acquired.
  • the battery when the current SOC value is larger than the optimum SOC value, the battery to the vehicle until the SOC value of the battery reaches the target value calculated based on the current SOC value, the optimum SOC value and the prediction information.
  • the control information instructing the discharge to the external electric device is output to the charging / discharging device.
  • the SOC value of the battery takes into consideration the past power consumption of the vehicle by each user in detail.
  • the battery can be discharged to an electric device outside the vehicle until the target value calculated in the above is reached.
  • the history information input to the trained model further includes information indicating the past date and time of use of the vehicle, and the prediction information includes prediction indicating the date and time when the vehicle will be used next. Date and time information may be included.
  • historical information including further information indicating the past date and time of use of the vehicle is input to the trained model, and the prediction information acquired from the trained model indicates the date and time when the vehicle will be used next. Includes predicted date and time information.
  • the determination it is further determined whether or not the unused time, which is the time from the present to the date and time indicated by the predicted date and time information, is longer than the predetermined time, and in the calculation, the current SOC value is determined. May be calculated when it is determined that is larger than the optimum SOC value and the unused time is longer than the predetermined time.
  • the battery discharges the electric device outside the vehicle. Therefore, in this embodiment, when it is considered that the unused time is shorter than the predetermined time and the deterioration of the battery does not proceed due to not using the battery, the battery is discharged to the electric device outside the vehicle. Can be avoided. As a result, in this embodiment, it is possible to prevent the deterioration of the battery from being promoted by discharging the battery to the electric device outside the vehicle in such a case.
  • the required SOC value capable of covering the required electric energy is calculated based on the prediction information, and when the optimum SOC value is larger than the required SOC value, the optimum SOC is calculated.
  • the value may be calculated as the target value.
  • the battery when the optimum SOC value is larger than the required SOC value, the battery is discharged from the battery to the electric device outside the vehicle until the SOC value of the battery reaches the optimum SOC value. Therefore, in this aspect, the battery can be discharged until the required amount of electric power can be covered the next time the vehicle is used and the deterioration of the battery can be suppressed.
  • the required SOC value capable of covering the required power amount is calculated based on the prediction information, and when the optimum SOC value is equal to or less than the required SOC value, it is determined in advance.
  • the charge / discharge pattern having the minimum deterioration degree of the battery is selected based on the current SOC value, the optimum SOC value, and the required SOC value, and the charge / discharge pattern is selected according to the selected charge / discharge pattern.
  • the target value may be calculated.
  • the optimum SOC value when the optimum SOC value is equal to or less than the required SOC value, electricity from the battery to the outside of the vehicle is obtained until the SOC value of the battery becomes a target value corresponding to the charge / discharge pattern with the minimum degree of deterioration of the battery.
  • the device is discharged. Therefore, in this embodiment, if the battery is discharged to the optimum SOC value and the required power amount cannot be covered the next time the vehicle is used, the target value according to the charge / discharge pattern in which the degree of deterioration of the battery is the minimum. It is possible to discharge the battery to the extent that the deterioration of the battery can be suppressed as much as possible.
  • the battery in the above embodiment, when the required SOC value is larger than the optimum SOC value and the current SOC value, the battery is charged to the required SOC value immediately before the next vehicle is used.
  • One charge / discharge pattern, and a second charge / discharge pattern of discharging the battery to the optimum SOC value immediately after the present time and then charging the battery to the required SOC value immediately before the vehicle is used.
  • the charge / discharge pattern with the minimum deterioration degree of the battery is selected and the first charge / discharge pattern is selected
  • the current SOC value is calculated as the target value
  • the second charge / discharge pattern is used.
  • the optimum SOC value may be calculated as the target value.
  • the current SOC value is the target. It is calculated as a value, and when the charge / discharge pattern with the minimum deterioration degree of the battery is the second charge / discharge pattern, the optimum SOC value is calculated as the target value.
  • the minimum charge / discharge pattern is described. As you can see, immediately after the present time, the battery can be not charged or discharged or the battery can be discharged to the optimum SOC value. As a result, this aspect can suppress the deterioration of the battery as much as possible by the time the vehicle is used next time.
  • the battery in the calculation, when the required SOC value is larger than the optimum SOC value and smaller than the current SOC value, the battery is discharged to the optimum SOC value immediately after the present time, and then the battery is discharged to the optimum SOC value.
  • a second charge / discharge pattern that charges the battery to the required SOC value immediately before the vehicle is used, and a third charge / discharge pattern that does not charge / discharge the battery until the vehicle is used next.
  • the degree of deterioration of the battery is the smallest.
  • the optimum SOC value is calculated as the target value, and when the third charge / discharge pattern is selected, the current SOC value is set to the target value.
  • the required SOC value may be calculated as the target value.
  • the required SOC value is larger than the optimum SOC value but smaller than the current SOC value, and the charge / discharge pattern with the minimum degree of deterioration of the battery is the second charge / discharge pattern, it is optimal.
  • the SOC value is calculated as the target value.
  • the charge / discharge pattern with the minimum degree of deterioration of the battery is the third charge / discharge pattern
  • the current SOC value is calculated as the target value.
  • the charge / discharge pattern with the minimum degree of deterioration of the battery is the fourth charge / discharge pattern
  • the required SOC value is calculated as the target value.
  • the required power amount can be covered without charging the battery, but when the battery is discharged to the optimum SOC value in order to suppress the deterioration of the battery, charging is required to cover the required power amount.
  • the battery can be discharged to the required SOC value or the optimum SOC value without charging / discharging the battery immediately after the present time according to the minimum charge / discharge pattern.
  • this aspect can suppress the deterioration of the battery as much as possible by the time the vehicle is used next time.
  • the charge / discharge pattern includes at least one of a first period in which the battery is not charged / discharged and a second period in which the battery is charged or discharged, and the deterioration of the battery in the first period is included.
  • the degree is calculated by the product of the first period and a predetermined first deterioration coefficient associated with the current SOC value, and the degree of deterioration of the battery in the second period is that of the battery in the second period. It may be calculated by multiplying the charge amount or the discharge amount by a predetermined second deterioration coefficient associated with the type of the battery.
  • the degree of deterioration of the battery in the first period in which the battery included in the charge / discharge pattern is not charged / discharged is calculated by the product of the first period and the predetermined first deterioration coefficient associated with the current SOC value. Will be done.
  • the degree of deterioration of the battery in the second period of charging or discharging the battery included in the charge / discharge pattern is a predetermined second deterioration coefficient associated with the amount of charge or discharge of the battery in the second period and the type of battery. It is calculated by the product of and.
  • the degree of deterioration of the battery in each charge / discharge pattern including at least one of the first period and the second period can be appropriately calculated.
  • the battery is not charged / discharged or discharged immediately after the present time, so that the battery is used until the next vehicle is used. Can be suppressed as much as possible from deterioration.
  • control information in the output, before the output of the control information, information inquiring whether or not to perform the discharge indicated by the control information is transmitted to the communication terminal owned by the user of the vehicle, and the control information is transmitted.
  • the control information may be output when the information indicating that the indicating discharge is to be performed is returned from the communication terminal.
  • the information inquiring whether or not to perform the discharge indicated by the control information is transmitted to the communication terminal owned by the user of the vehicle, and the information indicating that the discharge indicated by the control information is performed.
  • Control information is output when is returned from the communication terminal. Therefore, in this aspect, when the user gives permission to perform the discharge indicated by the control information, the discharge indicated by the control information can be performed. This makes it possible to prevent the battery from having an SOC value that is not intended by the user the next time the user uses the vehicle.
  • the control information before the output of the control information, an input of an SOC value equal to or more than the target value and less than the current SOC value is received, and the battery is discharged to the accepted SOC value.
  • the control information is replaced with the information indicating that the discharge mode is selected.
  • Information indicating that the battery may be discharged in the discharging mode may be output to the charging / discharging device.
  • the SOC value is equal to or more than the target value input to the communication terminal and is less than the current SOC value.
  • the battery is discharged.
  • the present disclosure can also be realized as a control program for causing a computer to execute each characteristic configuration included in the control method according to the above-described one aspect, or as a control device operated by this control program.
  • a control program can be distributed via a computer-readable non-temporary recording medium such as a CD-ROM or a communication network such as the Internet.
  • FIG. 1 is an overall configuration diagram of the vehicle discharge system 1.
  • the vehicle discharge system 1 is a system that controls discharge from the battery 41 of the vehicle 4 to the external electric device 32 of the vehicle 4.
  • the vehicle discharge system 1 includes a building 3, a charge / discharge device 5, a vehicle 4, and a communication terminal 9 owned by a user who has contracted to use the electric power supplied by the electric power system 8. , A server 2 (control device).
  • the building 3 includes, for example, a house in which the user resides and a business establishment and a factory owned by the user.
  • the building 3 includes a distribution board 31 and an electric device 32.
  • the distribution board 31 distributes the electric power supplied from the electric power system 8 to the electric device 32 and the charging / discharging device 5.
  • the electric device 32 operates with the electric power distributed by the distribution board 31.
  • the electric device 32 includes an operation panel 321 provided with a touch panel and a display, a television and an air conditioner (not shown), and the like.
  • the operation panel 321 displays the information acquired from the external device and the predetermined operation screen on the display via the communication device 322 described later, and transmits the information input to the operation screen by the user using the touch panel to the external device. ..
  • the electric device 32 includes a communication device 322 such as a router used when the operation panel 321 or the like communicates via a network 7 such as a LAN (Local Area Network), the Internet, and a telephone line network. ..
  • a communication device 322 such as a router used when the operation panel 321 or the like communicates via a network 7 such as a LAN (Local Area Network), the Internet, and a telephone line network. ..
  • a network 7 such as a LAN (Local Area Network), the Internet, and a telephone line network.
  • the charging / discharging device 5 is electrically connected to the distribution board 31.
  • One end of the charging cable 51 is electrically connected to the charging / discharging device 5.
  • a vehicle 4 such as an electric vehicle equipped with a rechargeable / dischargeable battery 41 is electrically connected to the other end of the charging cable 51.
  • the charging / discharging device 5 has a built-in communication circuit (not shown) for communicating with an external device via the network 7.
  • the charging / discharging device 5 When the charging / discharging device 5 receives control information indicating an instruction to charge the battery 41 of the vehicle 4 to the target charge amount from the server 2 using the built-in communication circuit, the charging / discharging device 5 charges the battery 41 according to the control information. conduct. Specifically, the charging / discharging device 5 supplies the electric power of the target charge amount indicated by the control information distributed by the distribution board 31 to the battery 41 of the vehicle 4 via the charging cable 51.
  • the charging / discharging device 5 receives control information indicating an instruction to discharge a target discharge amount from the battery 41 of the vehicle 4 to the electric device 32 from the server 2 using the built-in communication circuit, the control information is received. According to this, the battery 41 is discharged to the external electric device 32 of the vehicle 4. Specifically, the charging / discharging device 5 transfers the electric power of the target discharge amount indicated by the control information charged in the battery 41 to the external electric device of the vehicle 4 via the charging cable 51 and the distribution board 31. Supply to 32.
  • the vehicle 4 includes, for example, a vehicle equipped with a chargeable / dischargeable battery 41 such as an electric vehicle, a hybrid vehicle, and an electric bicycle.
  • the vehicle 4 includes a battery 41, a storage unit 42, a communication unit 43, a sensor 44, a drive unit 45, and a control unit 40.
  • the battery 41 is composed of a rechargeable secondary battery such as a lithium ion battery.
  • the battery 41 is detachably connected to the charging cable 51 connected to the charging / discharging device 5.
  • the battery 41 is charged by the electric power supplied from the charging / discharging device 5 via the charging cable 51. Further, the battery 41 supplies the electric power charged in the battery 41 to the external electric device 32 of the vehicle 4 via the charging cable 51 under the control of the charging / discharging device 5.
  • the storage unit 42 is composed of a non-volatile memory in which a predetermined control program is stored and a memory such as a RAM for temporarily storing information.
  • the storage unit 42 stores various information related to the charge / discharge control of the battery 41.
  • the storage unit 42 stores historical information regarding the amount of power used in the past in the vehicle 4.
  • the history information includes information indicating the date and time of use of the vehicle 4 and the amount of power used by the battery 41 at the date and time of use.
  • the information indicating the date and time when the vehicle 4 is used includes information indicating the date and time when the vehicle 4 is used.
  • the information indicating the date and time of use of the vehicle 4 may include the date and time when the use of the vehicle 4 is finished.
  • the storage unit 42 stores the current SOC (System Of Charge) value (hereinafter, the current SOC value) of the battery 41.
  • the communication unit 43 is configured by a communication circuit for communicating with an external device such as a server 2 via a network 7.
  • the communication unit 43 outputs the information received from the external device to the control unit 40, and transmits the information input from the control unit 40 to the external device.
  • the sensor 44 is composed of an SOC sensor, a timer, an electric energy sensor, and the like, and detects the current SOC value of the battery 41, the current date and time, and the electric energy used by the battery 41.
  • the drive unit 45 is composed of a drive motor (not shown) or the like provided on the bottom surface of the main body of the vehicle 4 to control the direction and rotation of the wheels.
  • the control unit 40 is composed of a processor such as a CPU (Central Processing Unit).
  • the control unit 40 controls each unit of the vehicle 4 by executing a control program stored in the storage unit 42.
  • control unit 40 stores information indicating the current date and time detected by the sensor 44 when the vehicle 4 starts to be used in the storage unit 42 as information indicating the use date and time of the vehicle 4 included in the history information.
  • the control unit 40 periodically detects the current SOC value of the battery 41 by using the sensor 44 after the use of the vehicle 4 is started and until the use of the vehicle 4 is finished.
  • the control unit 40 periodically updates the current SOC value stored in the storage unit 42 according to the detected current SOC value.
  • the control unit 40 periodically detects the amount of power used by the battery 41 using the sensor 44 from the start of use of the vehicle 4 to the end of use of the vehicle 4. Further, the control unit 40 uses the information indicating the amount of electric power used in the history information stored in the storage unit 42, which includes the date and time when the vehicle 4 is started to be used as the information indicating the date and time when the vehicle 4 is used. It is updated periodically by the information indicating the cumulative value of the amount of power consumption detected from the date and time when the use of is started to the present.
  • control unit 40 When the control unit 40 receives the control information indicating the transmission instruction of the current SOC value transmitted from the server 2 by the communication unit 43, the control unit 40 transfers the information indicating the current SOC value stored in the storage unit 42 to the communication unit. 43 causes the server 2 to reply. Not limited to this, the control unit 40 may periodically transmit information indicating the current SOC value to the server 2 by the communication unit 43.
  • the control unit 40 transfers the history information stored in the storage unit 42 to the server 2 by the communication unit 43. Let me reply.
  • the communication terminal 9 is, for example, a smartphone, a tablet terminal, and / or a notebook computer owned by the user, and communicates various information with an external device via the network 7. Further, the communication terminal 9 includes a display and a touch panel (not shown). The communication terminal 9 displays the information received from the external device and the predetermined operation screen on the display, and transmits the information input to the operation screen by the user using the touch panel to the external device.
  • the server 2 controls the discharge from the battery 41 of the vehicle 4 to the external electric device 32 of the vehicle 4 by communicating with the vehicle 4, the charging / discharging device 5 and the communication terminal 9 via the network 7.
  • the server 2 includes a storage unit 21, a communication unit 22, and a control unit 20.
  • the storage unit 21 is composed of a non-volatile memory in which a predetermined control program is stored and a memory such as a RAM for temporarily storing information.
  • the storage unit 21 stores various information related to control for causing the charging / discharging device 5 to discharge the battery 41 of the vehicle 4.
  • the storage unit 21 stores a learned model 211 that has learned the relationship between the past power consumption of the vehicle 4 and the required power consumption when the vehicle 4 is used next time.
  • the trained model 211 also learns the relationship between the past date and time of use of the vehicle 4 and the date and time when the vehicle 4 is used next. The details of the trained model 211 will be described later.
  • the storage unit 21 stores a predetermined optimum SOC value for suppressing deterioration of the battery 41.
  • the optimum SOC value is set to the SOC value when the deterioration of the battery 41 is most suppressed, for example, based on an experimental value or the like.
  • the optimum SOC value is not limited to this, and a predetermined representative value within the range such as at least the center value in the range of the SOC value capable of suppressing deterioration of the battery 41 may be set as the optimum SOC value. ..
  • the charge / discharge pattern defines a procedure for charging / discharging the battery 41, and includes at least one of a first period in which the battery 41 is not charged / discharged and a second period in which the battery 41 is charged or discharged. The details of the charge / discharge pattern will be described later.
  • the storage unit 21 stores various coefficients used for calculating the degree of deterioration of the battery 41.
  • the coefficients are used to calculate the first deterioration coefficient used for calculating the deterioration degree of the battery 41 in the first period in which the battery 41 is not charged and discharged, and the deterioration degree of the battery 41 in the second period in which the battery 41 is charged or discharged.
  • the second deterioration factor is included.
  • the first deterioration coefficient is a coefficient that differs depending on the current SOC value of the battery 41.
  • the storage unit 21 stores a plurality of first deterioration coefficients in association with a plurality of current SOC values.
  • the second deterioration coefficient is a coefficient that differs depending on the type of the battery 41 such as a lithium ion battery and a nickel hydrogen battery.
  • the storage unit 21 stores a plurality of second deterioration coefficients in association with the types of the plurality of batteries 41.
  • the communication unit 22 is configured by a communication circuit for communicating with an external device such as a vehicle 4.
  • the communication unit 22 outputs the information received from the external device to the control unit 20, and transmits the information input from the control unit 20 to the external device.
  • the control unit 20 is composed of a microcomputer equipped with a CPU and the like.
  • the control unit 20 controls the operation of each unit of the server 2 by executing the control program stored in the storage unit 21.
  • control unit 20 executes the control program stored in the storage unit 21, and in particular, the learning unit 200, the first acquisition unit 201, the second acquisition unit 202, the third acquisition unit 203, and the determination unit 204. , Functions as a calculation unit 205 and an output unit 206.
  • History information regarding the past power consumption in the vehicle 4 is input to the learning unit 200.
  • the history information includes information indicating the date and time of use of the vehicle 4 in the past and the amount of power used by the battery 41 at the date and time of use.
  • the learning unit 200 uses the input history information to perform machine learning such as deep learning using a neural network, thereby performing the past usage date and time of the vehicle 4, the amount of power used at the usage date and time, and then the vehicle.
  • a trained model 211 that has learned the relationship between the date and time when 4 is used and the amount of power required when the vehicle 4 is used at that date and time is created and stored in the storage unit 21.
  • the learning unit 200 uses the first history information as an explanatory variable and the second time. Machine learning is performed using the history information of. As a result, the learning unit 200 predicts the date and time when the vehicle 4 will be used next and the amount of electric power required when the vehicle 4 is used at that date and time when the history information for one time is input.
  • the trained model 211 can also be created in units of days of the week instead of units of date and time.
  • the history information may include information indicating the day of the week when the vehicle 4 is used and the amount of power used by the battery 41 on that day of the week.
  • the first acquisition unit 201 Details of the first acquisition unit 201, the second acquisition unit 202, the third acquisition unit 203, the determination unit 204, the calculation unit 205, and the output unit 206 will be described later.
  • FIG. 2 is a flowchart showing an example of a control operation in which the charging / discharging device 5 discharges the battery 41 of the vehicle 4.
  • the first acquisition unit 201 acquires the current SOC value of the battery 41 (step S101). Specifically, in step S101, the first acquisition unit 201 controls the communication unit 22 to transmit the control information indicating the current SOC value transmission instruction to the vehicle 4. In response to this, as described above, when the information indicating the current SOC value is returned from the vehicle 4, the first acquisition unit 201 sends the information indicating the current SOC value of the returned vehicle 4 to the communication unit 22. Get through.
  • the second acquisition unit 202 acquires historical information regarding the past power consumption in the vehicle 4 (step S102). Specifically, in step S102, the second acquisition unit 202 controls the communication unit 22 to transmit the control information indicating the transmission instruction of the history information to the vehicle 4. In response to this, when the history information is returned from the vehicle 4 as described above, the second acquisition unit 202 acquires the returned history information via the communication unit 22.
  • the history information acquired in step S102 is input to the learning unit 200.
  • the learning unit 200 creates a learned model 211 using the input history information and stores it in the storage unit 21 as described above.
  • the third acquisition unit 203 inputs the history information corresponding to the latest usage date and time acquired in step S102 into the trained model 211, thereby relating to the required electric energy when the vehicle 4 is used next time.
  • Acquire prediction information (step S103).
  • the prediction information includes information that is predicted by the trained model 211 and indicates the date and time when the vehicle 4 is used next and the required electric energy when the vehicle 4 is used at that date and time.
  • the determination unit 204 determines whether or not the current SOC value acquired in step S101 is equal to or higher than the optimum SOC value stored in the storage unit 21 (step S104).
  • step S104 When it is determined in step S104 that the current SOC value is not equal to or higher than the optimum SOC value (NO in step S104), the control unit 20 ends the discharge control operation.
  • the SOC value is currently smaller than the optimum SOC value and the battery 41 is considered to be deteriorated even if the battery 41 is left unused, the battery 41 is prevented from being discharged. As a result, it is avoided that the deterioration of the battery 41 is accelerated by discharging the battery 41.
  • step S104 when the determination unit 204 determines that the current SOC value is equal to or higher than the optimum SOC value (YES in step S104), it is the time from the present until the next date and time when the vehicle 4 is used. It is determined whether or not the time is longer than the predetermined time (step S105).
  • the determination unit 204 acquires information (hereinafter, predicted date / time information) that is included in the prediction information acquired in step S103 and indicates the date and time when the vehicle 4 will be used next.
  • the determination unit 204 calculates the time from the present to the date and time indicated by the acquired predicted date and time information as the unused time, and determines whether or not the calculated unused time is longer than the predetermined time.
  • the predetermined time is, for example, based on an experimental value or the like, when the battery 41 whose SOC value is not the optimum SOC value is left unused, from the time when the leaving is started until the battery 41 deteriorates. It is set to the required time (for example, 24 hours).
  • step S105 When it is determined in step S105 that the unused time is not longer than the predetermined time (NO in step S105), the control unit 20 ends the discharge control operation.
  • the control unit 20 ends the discharge control operation.
  • the deterioration of the battery 41 is accelerated by discharging the battery 41. Further, by discharging the battery 41, it is possible to avoid hindering the user from using the vehicle 4.
  • step S105 when it is determined in step S105 that the unused time is longer than the predetermined time (YES in step S105), the calculation unit 205 is stored in the current SOC value and storage unit 21 acquired in step S101. Based on the optimum SOC value and the prediction information acquired in step S103, the target value of the SOC value of the battery 41 when the battery 41 is discharged is calculated (step S106). The details of step S106 will be described later.
  • the output unit 206 generates control information instructing the battery 41 to discharge to the external electric device 32 of the vehicle 4 until the SOC value of the battery 41 reaches the target value calculated in step S106 (. Step S107). Specifically, the output unit 206 calculates the result of subtracting the current SOC value acquired in step S101 from the target value calculated in step S106 as the target discharge amount to be discharged from the battery 41 to the electric device 32. Then, the output unit 206 generates information indicating an instruction to discharge the target discharge amount from the battery 41 of the vehicle 4 to the electric device 32 as control information.
  • the output unit 206 inquires to the user of the vehicle 4 whether or not to permit the discharge indicated by the control information generated in step S107 (step S108).
  • step S108 the output unit 206 controls the communication unit 22 to inquire whether or not to perform the discharge indicated by the control information generated in step S107 (hereinafter referred to as inquiry information). It is transmitted to the communication terminal 9 owned by the user of.
  • the output unit 206 acquires information indicating that the discharge indicated by the control information returned from the communication terminal 9 is not performed after the transmission of the inquiry information until a predetermined time elapses, via the communication unit 22. Suppose you did. In this case, the output unit 206 determines that the user of the vehicle 4 has not permitted the discharge indicated by the control information (NO in step S108). Further, when the communication unit 22 does not receive the reply from the communication terminal 9 when a predetermined time has elapsed after the transmission of the inquiry information, the output unit 206 causes the user of the vehicle 4 to discharge the discharge indicated by the control information. (NO in step S108). In these cases, the control unit 20 ends the discharge control operation.
  • the output unit 206 acquires the information indicating that the control information returned from the communication terminal 9 is to perform the discharge via the communication unit 22, the user of the vehicle 4 performs the discharge indicated by the control information. It is determined that the permission has been granted (YES in step S108).
  • the output unit 206 transmits the control information generated in step S107 to the charging / discharging device 5 (step S109).
  • the charging / discharging device 5 receives the control information transmitted in step S109, the charging / discharging device 5 discharges the battery 41 to the external electric device 32 of the vehicle 4 according to the control information (step S110).
  • the charging / discharging device 5 transfers the electric power of the target discharge amount indicated by the control information charged in the battery 41 via the charging cable 51 and the distribution board 31. , Supply to the external electric device 32 of the vehicle 4.
  • FIG. 3 is a flowchart showing an example of a process of calculating a target value of the SOC value of the battery 41 when the battery 41 is discharged.
  • step S106 when the calculation unit 205 starts step S106 (FIG. 2), the calculation unit 205 can cover the required electric energy when the vehicle 4 is used next time based on the prediction information acquired in step S103. A possible required SOC value is calculated (step S201).
  • the calculation unit 205 has a SOC value of the battery 41 corresponding to the required electric energy when the vehicle 4 is used next, which is indicated by the prediction information, and a predetermined margin SOC value. Calculate the sum as the required SOC value.
  • the predetermined margin SOC value is defined as a margin so that the battery 41 can cover the required electric energy, that is, in order to reliably discharge the required electric energy from the battery 41. This is the set SOC value.
  • the predetermined margin SOC value may or may not be set to 0.
  • the calculation unit 205 determines whether or not the optimum SOC value stored in the storage unit 21 is larger than the required SOC value calculated in step S201 (step S202).
  • step S202 when the calculation unit 205 determines that the optimum SOC value is larger than the required SOC value (YES in step S202), the calculation unit 205 calculates the optimum SOC value as the target value (step S203).
  • step S107 the result of subtracting the current SOC value acquired in step S101 from the optimum SOC value which is the target value is calculated as the target discharge amount, and the battery 41 of the vehicle 4 is transferred to the electric device 32. Control information indicating an instruction to discharge the target discharge amount is generated.
  • step S110 the target discharge amount is discharged from the battery 41 of the vehicle 4 to the electric device 32.
  • the SOC value of the battery 41 becomes the optimum SOC value, and the deterioration of the battery 41 is suppressed.
  • step S202 when the calculation unit 205 determines that the optimum SOC value is equal to or less than the required SOC value (NO in step S202), the calculation unit 205 performs the processing after step S210. As a result, the calculation unit 205 selects and selects the charge / discharge pattern with the minimum deterioration degree of the battery 41 from the plurality of predetermined charge / discharge patterns based on the current SOC value, the optimum SOC value, and the required SOC value. The target value is calculated according to the charged / discharged pattern.
  • step S202 when the calculation unit 205 determines that the optimum SOC value is equal to or less than the required SOC value (NO in step S202), the required SOC value calculated in step S201 is larger than the current SOC value. Whether or not it is determined (step S210).
  • the calculation unit 205 indicates the predicted date and time information included in the forecast information acquired in step S103 (FIG. 2), and the forecast information indicates the next date and time when the vehicle 4 is used, and then the vehicle 4. It is determined whether or not the battery 41 needs to be charged in order to supply the required electric energy from the battery 41 when the battery 41 is used.
  • step S210 when the calculation unit 205 determines that the required SOC value is larger than the current SOC value (YES in step S210), the calculation unit 205 needs the SOC value of the battery 41 at the date and time when the vehicle 4 is used next.
  • the first charge / discharge pattern and the second charge / discharge pattern to be set to the SOC value are selected (step S211).
  • FIG. 4 is a diagram showing an example of the first charge / discharge pattern G11 and the second charge / discharge pattern G12.
  • the horizontal axis shows the elapsed time from the present time
  • the vertical axis shows the SOC value of the battery 41.
  • 0 indicates the current time
  • T indicates from the current time to the date and time when the vehicle 4 is used next, which is indicated by the predicted date and time information included in the forecast information acquired in step S103 (FIG. 2).
  • Qn indicates the required SOC value
  • Qc indicates the current SOC value
  • Qo indicates the optimum SOC value.
  • the first charge / discharge pattern G11 does not charge / discharge the battery 41 until immediately before the next vehicle 4 is used, and reaches the required SOC value Qn immediately before the next vehicle 4 is used. It is a charge / discharge pattern for charging the battery 41.
  • the second charge / discharge pattern G12 the battery 41 is discharged to the optimum SOC value Qo immediately after the present time, and then the battery 41 is not charged / discharged until just before the next vehicle 4 is used, and then the vehicle 4 is charged / discharged. It is a charge / discharge pattern that charges the battery 41 to the required SOC value Qn immediately before it is used.
  • the calculation unit 205 determines, among the first charge / discharge pattern G11 and the second charge / discharge pattern G12 selected in step S211, the charge / discharge pattern that minimizes the deterioration degree of the battery 41 (step S212). ..
  • step S212 the calculation unit 205 determines the degree of deterioration of the battery 41 in the first period in which the battery 41 is not charged or discharged, and a predetermined first deterioration coefficient in which the first period and the current SOC value Qc are associated with each other. Calculated by the product of and. Further, the calculation unit 205 determines the degree of deterioration of the battery 41 in the second period of charging / discharging the battery 41, the amount of charging / discharging of the battery 41 in the second period, and a predetermined second deterioration associated with the type of the battery 41. Calculated as a product with a coefficient.
  • the calculation unit 205 calculates the deterioration degree D1 of the battery 41 in the first charge / discharge pattern G11 by using the following equation (1).
  • D1 T1 x K1 [Qc] + (Qn-Qc) x K2 [Li] ... (1)
  • T1 indicates the first period in which the battery 41 is not charged or discharged.
  • the first period T1 included in the first charge / discharge pattern G11 corresponds to the period from the present time to the time t3 shown in FIG. However, the first period T1 may be approximated by the period (T-0) from the present until the next vehicle 4 is used.
  • K1 [Qc] indicates the first deterioration coefficient currently associated with the SOC value Qc.
  • Li indicates that the type of the battery 41 is a lithium ion battery
  • K2 [Li] indicates a second deterioration coefficient associated with the lithium ion battery.
  • the calculation unit 205 calculates the deterioration degree D2 of the battery 41 in the second charge / discharge pattern G12 by using the following equation (2).
  • D2 (Qc-Qo) x K2 [Li] + T1 x K1 [Qc] + (Qn-Qo) x K2 [Li] ...
  • T1 indicates the first period in which the battery 41 is not charged or discharged.
  • the first period T1 included in the second charge / discharge pattern G12 is the period (t2-) from the time when the time t1 has elapsed from the present time to the time when the time t2 has elapsed from the present time, as shown in FIG. Corresponds to t1).
  • the first period T1 may be approximated by the period (T-0) from the present until the next vehicle 4 is used.
  • K1 [Qc] and K2 [Li] are the first deterioration coefficient associated with the current SOC value Qc and the second deterioration coefficient associated with the lithium ion battery, as in the equation (1).
  • the method for calculating the degree of deterioration of the battery 41 in each charge / discharge pattern described above is merely an example, and the degree of deterioration of the battery 41 in each charge / discharge pattern may be calculated by another calculation method.
  • step S212 when the calculation unit 205 determines that the charge / discharge pattern that minimizes the deterioration of the battery 41 is the first charge / discharge pattern G11 (first in step S212), the current SOC value Qc is set to the battery. It is calculated as a target value of the SOC value of the battery 41 when the 41 is discharged (step S213).
  • step S107 which is the result of subtracting the current SOC value Qc acquired in step S101 from the current SOC value Qc which is the target value, is calculated as the target discharge amount.
  • the output unit 206 since it is not necessary to discharge the battery 41 to the electric device 32, the output unit 206 does not perform the processing after step S108 (FIG. 2), and the control unit 20 ends the discharge control operation.
  • the battery 41 of the vehicle 4 is not discharged to the electric device 32, and as shown in the first charge / discharge pattern G11 (FIG. 4), the battery 41 is left uncharged immediately after the present time. ..
  • step S107 the output unit 206 generates control information indicating an instruction to discharge the electric device 32 from the battery 41 of the vehicle 4 to the electric device 32 with a target discharge amount of 0, and the output unit 206 generates control information in step S108. Subsequent processing may be performed.
  • step S110 the battery 41 of the vehicle 4 is discharged to the electric device 32 with a target discharge amount of 0. That is, in reality, the battery 41 of the vehicle 4 is not discharged to the electric device 32, and as shown in the first charge / discharge pattern G11 (FIG. 4), the battery 41 is not charged / discharged immediately after the present time. Be left alone.
  • step S212 when the calculation unit 205 determines that the charge / discharge pattern that minimizes the deterioration of the battery 41 is the second charge / discharge pattern G12 (second in step S212), the calculation unit 205 determines the optimum SOC value Qo. , Calculated as a target value of the SOC value of the battery 41 when the battery 41 is discharged (step S214).
  • step S107 the result of subtracting the current SOC value Qc acquired in step S101 from the optimum SOC value Qo which is the target value is calculated as the target discharge amount, and the electric device is calculated from the battery 41 of the vehicle 4.
  • Control information indicating an instruction to discharge the target discharge amount to 32 is generated.
  • step S110 as shown in the second charge / discharge pattern G12 (FIG. 4)
  • electricity is supplied from the battery 41 until the SOC value of the battery 41 reaches the optimum SOC value Qo. Discharge to the device 32 is performed.
  • step S210 when the calculation unit 205 determines that the required SOC value is currently equal to or less than the SOC value (NO in step S210), the required SOC is the SOC value of the battery 41 at the date and time when the vehicle 4 is used next.
  • a second charge / discharge pattern, a third charge / discharge pattern, and a fourth charge / discharge pattern to be set to the value or the current SOC value are selected (step S215).
  • FIG. 5 is a diagram showing an example of a second charge / discharge pattern G22, a third charge / discharge pattern G23, and a fourth charge / discharge pattern G24.
  • the horizontal axis shows the elapsed time from the present time
  • the vertical axis shows the SOC value of the battery 41.
  • 0 indicates the current time
  • T indicates from the current time to the date and time when the forecast date and time information included in the forecast information acquired in step S103 (FIG. 2) is used next.
  • Qn indicates the required SOC value
  • Qc indicates the current SOC value
  • Qo indicates the optimum SOC value.
  • the battery 41 is discharged to the optimum SOC value Qo immediately after the present time, and then the battery 41 is charged / discharged until just before the next vehicle 4 is used.
  • it is a charge / discharge pattern in which the battery 41 is charged to the required SOC value Qn immediately before the vehicle 4 is used.
  • the third charge / discharge pattern G23 is a charge / discharge pattern in which the battery 41 is not charged / discharged until the vehicle 4 is used next.
  • the fourth charge / discharge pattern G24 is a charge / discharge pattern in which the battery 41 is discharged to the required SOC value Qn immediately after the present time, and the battery 41 is not charged / discharged until the vehicle 4 is used next.
  • the calculation unit 205 will charge / discharge the battery 41 to the minimum degree of deterioration among the second charge / discharge pattern G22, the third charge / discharge pattern G23, and the fourth charge / discharge pattern G24 selected in step S215.
  • the pattern is determined (step S216).
  • step S216 the calculation unit 205 assigns the degree of deterioration of the battery 41 in the first period in which the battery 41 is not charged / discharged to the first period and the current SOC value Qc, as in step S212. It is calculated by the product of the first deterioration coefficient of. Further, the calculation unit 205 determines the degree of deterioration of the battery 41 in the second period of charging / discharging the battery 41, the amount of charging / discharging of the battery 41 in the second period, and a predetermined second deterioration associated with the type of the battery 41. Calculated as a product with a coefficient.
  • the calculation unit 205 calculates the deterioration degree D2 of the battery 41 in the second charge / discharge pattern G22 by using the above equation (2) in the same manner as in step S212.
  • step S216 in the formula (2), the time t12 has elapsed from the present time in the first period T1 in which the battery 41 included in the second charge / discharge pattern G22 is not charged / discharged, as shown in FIG. It corresponds to the period (t13-t12) from the time point to the time point when the time t13 has elapsed.
  • the first period T1 may be approximated by the period (T-0) from the present until the next vehicle 4 is used.
  • the calculation unit 205 calculates the deterioration degree D3 of the battery 41 in the third charge / discharge pattern G23 using the following equation (3).
  • D3 T1 ⁇ K1 [Qc] ... (3)
  • T1 indicates the first period in which the battery 41 is not charged or discharged.
  • the first period T1 included in the third charge / discharge pattern G23 corresponds to the period (T-0) from the present until the next vehicle 4 is used, which is shown in FIG.
  • K1 [Qc] indicates the first deterioration coefficient currently associated with the SOC value Qc, as in the above formula (1).
  • the calculation unit 205 calculates the deterioration degree D4 of the battery 41 in the fourth charge / discharge pattern G24 using the following equation (4).
  • D4 (Qc-Qn) x K2 [Li] + T1 x K1 [Qn] ... (4)
  • T1 indicates the first period in which the battery 41 is not charged or discharged.
  • the first period T1 included in the fourth charge / discharge pattern G24 is the period (T-) shown in FIG. 5 from the time when the time t11 has elapsed until the next vehicle 4 is used. Corresponds to t11).
  • the first period T1 may be approximated by the period (T-0) from the present until the next vehicle 4 is used.
  • K1 [Qn] indicates the first deterioration coefficient associated with the required SOC value Qn.
  • K2 [Li] indicates the second deterioration coefficient associated with the lithium ion battery, as in the formula (1).
  • the method for calculating the degree of deterioration of the battery 41 in each charge / discharge pattern described above is merely an example, and the degree of deterioration of the battery 41 in each charge / discharge pattern may be calculated by another calculation method.
  • step S216 when the calculation unit 205 determines that the charge / discharge pattern that minimizes the deterioration of the battery 41 is the second charge / discharge pattern G22 (second in step S216), step S214 is performed. That is, the calculation unit 205 calculates the optimum SOC value Qo as the target value of the SOC value of the battery 41 when the battery 41 is discharged.
  • step S107 the result of subtracting the current SOC value Qc acquired in step S101 from the optimum SOC value Qo which is the target value is calculated as the target discharge amount, and electricity is generated from the battery 41 of the vehicle 4.
  • Control information indicating an instruction to discharge the target discharge amount to the device 32 is generated.
  • step S110 as shown in the second charge / discharge pattern G22 (FIG. 5)
  • electricity is supplied from the battery 41 until the SOC value of the battery 41 becomes the optimum SOC value Qo. Discharge to the device 32 is performed.
  • step S216 when the calculation unit 205 determines that the charge / discharge pattern that minimizes the deterioration of the battery 41 is the third charge / discharge pattern G23 (third in step S216), the current SOC is the same as in step S213.
  • the value Qc is calculated as a target value of the SOC value of the battery 41 when the battery 41 is discharged (step S217).
  • step S107 which is the result of subtracting the current SOC value Qc acquired in step S101 from the current SOC value Qc which is the target value, is calculated as the target discharge amount.
  • the output unit 206 since it is not necessary to discharge the battery 41 to the electric device 32, the output unit 206 does not perform the processing after step S108 (FIG. 2), and the control unit 20 ends the discharge control operation.
  • the battery 41 of the vehicle 4 is not discharged to the electric device 32, and as shown in the third charge / discharge pattern G23 (FIG. 5), the battery 41 is left uncharged immediately after the present time. ..
  • step S107 the output unit 206 generates control information indicating an instruction to discharge the electric device 32 from the battery 41 of the vehicle 4 to the electric device 32 with a target discharge amount of 0, and the output unit 206 generates control information in step S108. Subsequent processing may be performed.
  • step S110 the battery 41 of the vehicle 4 is discharged to the electric device 32 with a target discharge amount of 0. That is, in reality, the battery 41 of the vehicle 4 is not discharged to the electric device 32, and as shown in the third charge / discharge pattern G23 (FIG. 5), the battery 41 is not charged / discharged immediately after the present time. Be left alone.
  • step S216 when the calculation unit 205 determines that the charge / discharge pattern that minimizes the deterioration of the battery 41 is the fourth charge / discharge pattern G24 (fourth in step S216), the required SOC value Qn is set to the battery. It is calculated as a target value of the SOC value of the battery 41 when the 41 is discharged (step S218).
  • step S107 the result of subtracting the current SOC value Qc acquired in step S101 from the required SOC value Qn, which is the target value, is calculated as the target discharge amount, and the electric device is calculated from the battery 41 of the vehicle 4.
  • Control information indicating an instruction to discharge the target discharge amount to 32 is generated.
  • step S110 as shown in the fourth charge / discharge pattern G24 (FIG. 4), immediately after the present time, electricity is supplied from the battery 41 until the SOC value of the battery 41 reaches the required SOC value Qn. Discharge to the device 32 is performed.
  • FIG. 6 is a diagram showing an example of the discharge notification setting screen W1.
  • the communication terminal 9 can display the discharge notification setting screen W1 shown in FIG. 6 on the display included in the communication terminal 9 at an arbitrary timing by the operation by the user of the vehicle 4.
  • the discharge notification setting screen W1 receives the inquiry information sent from the server 2 in step S108 (FIG. 2) to inquire whether or not to perform the discharge indicated by the control information generated in step S107 (FIG. 2).
  • This is a screen for setting in advance the information to be returned to the server 2.
  • the discharge notification setting screen W1 has a message 900 indicating whether or not to automatically reply to the server 2 when the inquiry information is received, and a permission button 901. , Non-licensed button 902 and confirm button 903 each time are included.
  • the permission button 901 is an operation button for setting to automatically return the information indicating that the discharge indicated by the control information is performed to the server 2 when the inquiry information is received. That is, when the permission button 901 is pressed by the user, thereafter, when the communication terminal 9 receives the inquiry information, the communication terminal 9 automatically returns the information indicating that the discharge indicated by the control information is performed to the server 2. ..
  • the non-licensed button 902 is an operation button for setting to automatically return the information indicating that the discharge indicated by the control information is not performed to the server 2 when the inquiry information is received. That is, when the non-licensed button 902 is pressed by the user, the communication terminal 9 automatically sends the information indicating that the control information indicates that the discharge is not performed to the server 2 when the inquiry information is received. Send back.
  • the confirmation button 903 each time is an operation button for setting to confirm with the user whether or not to perform the discharge indicated by the control information each time the inquiry information is received. That is, each time the confirmation button 903 is pressed by the user, the communication terminal 9 displays the discharge confirmation screen W2 shown in FIG. 7 on the display included in the communication terminal 9 each time the inquiry information is received.
  • FIG. 7 is a diagram showing an example of the discharge confirmation screen W2.
  • the discharge confirmation screen W2 includes a prediction result message 910, a discharge content message 911, a permission button 912, a non-license button 913, and a discharge amount setting button 914.
  • the prediction result message 910 is a message indicating the time from the present until the next date and time when the vehicle 4 is used and the required electric energy when the vehicle 4 is used next.
  • the prediction result message 910 is generated using the prediction information predicted in step S103 (FIG. 2). Therefore, in step S108 (FIG. 2), the output unit 206 transmits the prediction information predicted in step S103 (FIG. 2) together with the inquiry information to the communication terminal 9.
  • the discharge content message 911 is a message indicating the content of the discharge indicated by the control information.
  • the discharge content message 911 includes the current SOC value of the battery 41 and the target value of the SOC value of the battery 41 when discharging indicated by the control information.
  • the discharge content message 911 is generated using the current SOC value acquired in step S101 (FIG. 2) and the target value calculated in step S106. Therefore, in step S108 (FIG. 2), the output unit 206 sends the communication terminal 9 information indicating the current SOC value acquired in step S101 (FIG. 2) and the target value calculated in step S106 together with the inquiry information. Send.
  • the permission button 912 is an operation button for returning information indicating that the discharge indicated by the control information is to be performed. That is, when the communication terminal 9 receives the inquiry information, after displaying the discharge confirmation screen W2 on the display, when the permission button 912 is pressed by the user, the communication terminal 9 performs the discharge indicated by the control information. The indicated information is returned to the server 2.
  • the non-licensed button 913 is an operation button for returning information indicating that the discharge is not performed, which is indicated by the control information. That is, the communication terminal 9 does not perform the discharge indicated by the control information when the disapproval button 913 is pressed by the user after displaying the discharge confirmation screen W2 on the display when the inquiry information is received. Information indicating that is returned to the server 2.
  • the discharge amount setting button 914 receives an input of an SOC value that is equal to or greater than the target value included in the discharge content message 911 and is less than the SOC value of the current battery 41 included in the discharge content message 911, and the accepted SOC value. It is an operation button for selecting a discharge mode for discharging the battery 41 up to.
  • the discharge confirmation screen W2 is displayed on the display, and then the discharge amount setting button 914 is pressed by the user, the target value included in the discharge content message 911.
  • the operation screen on which the SOC value less than the SOC value of the current battery 41 included in the discharge content message 911 can be input is displayed on the display.
  • step S108 the output unit 206 acquires the information returned from the communication terminal 9 indicating that the discharge mode is selected via the communication unit 22.
  • the output unit 206 performs step S109 (FIG. 2), and in step S109, instead of the control information generated in step S107, discharges the battery 41 in the discharge mode indicated by the acquired information.
  • the instructed information is transmitted to the charging / discharging device 5.
  • the SOC value of the battery 41 is equal to or higher than the target value calculated in step S106 and is shown in step S101 (FIG. 2) according to the received information.
  • the battery 41 is discharged to the external electric device 32 of the vehicle 4 until the SOC value is less than the current SOC value acquired in.
  • step S108 the output unit 206 transmits the inquiry information to the operation panel 321 (FIG. 1) in the building 3 owned by the user of the vehicle 4, thereby sending the inquiry information to the user of the vehicle 4.
  • the operation panel 321 may display the discharge notification setting screen W1 shown in FIG. 6 and the discharge confirmation screen W2 shown in FIG. 7 on the display so as to accept the operation of these screens by the user. ..
  • the discharge confirmation screen W2 shown in FIG. 7 may not include the discharge amount setting button 914. Further, on the discharge confirmation screen W2, an operation of designating the amount of electric power to be supplied to one or more electric devices 32 to which the electric power discharged from the battery 41 is supplied and each of the one or more electric devices 32 is not shown. An operation button for displaying the discharge operation screen of the above may be provided.
  • the communication terminal 9 or the operation panel 321 displays the discharge operation screen, and the information for identifying one or more electric devices 32 specified on the discharge operation screen and the one.
  • the detailed discharge information including the information indicating the amount of electric power supplied to each of the above electric devices 32 may be returned to the server 2 together with the information indicating that the discharge is performed indicated by the control information.
  • step S109 the output unit 206 may transmit the detailed discharge information returned from the communication terminal 9 or the operation panel 321 to the charging / discharging device 5 together with the control information.
  • step S110 the charging / discharging device 5 applies the power charged in the battery 41 of the vehicle 4 to one or more electric devices 32 indicated by the detailed discharging information received from the server 2. The amount of power indicated by may be supplied.
  • an icon image representing the battery 41 and one or more electric devices 32 is displayed on the display, and from the icon image representing the battery 41, each of the one or more electric devices 32 is displayed.
  • An image indicating that power is being supplied may be displayed toward each icon image to be represented.
  • Step S105 (FIG. 2) may be omitted.
  • the unused time is the time from the present until the next date and time when the vehicle 4 is used. Instead, the processing after step S106 (FIG. 2) may be performed.
  • Step S108 may be omitted.
  • the processing after step S109 (FIG. 2) is performed so that the discharge indicated by the control information is performed without inquiring to the user of the vehicle 4. May be good.
  • the charging / discharging device 5 performs the same control as the discharge control performed by the server 2. It may be performed by the computer provided in the vehicle or the control unit 40 included in the vehicle 4. In this case, a trained model similar to the trained model 211 stored in the storage unit 21 of the server 2 may be stored in a storage device (not shown) or a storage unit 42 included in the charging / discharging device 5.
  • the computer of the charging / discharging device 5 or the control unit 40 of the vehicle 4 does not have to function in the same manner as the learning unit 200.
  • the computer of the charging / discharging device 5 or the control unit 40 of the vehicle 4 requests the server 2 to transmit the learned model 211 stored in the storage unit 21, and the server 2 responds accordingly.
  • the trained model 211 may be stored in a storage device or a storage unit 42 (not shown), and the trained model 211 may be used.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
PCT/JP2021/012329 2020-06-24 2021-03-24 制御方法、制御装置及び制御プログラム Ceased WO2021261042A1 (ja)

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JP2022532311A JP7661329B2 (ja) 2020-06-24 2021-03-24 制御方法、制御装置及び制御プログラム
EP21828010.5A EP4175120A4 (en) 2020-06-24 2021-03-24 METHOD, DEVICE AND CONTROL PROGRAM
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