WO2023127065A1 - 充電制御装置および充電制御方法 - Google Patents

充電制御装置および充電制御方法 Download PDF

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Publication number
WO2023127065A1
WO2023127065A1 PCT/JP2021/048710 JP2021048710W WO2023127065A1 WO 2023127065 A1 WO2023127065 A1 WO 2023127065A1 JP 2021048710 W JP2021048710 W JP 2021048710W WO 2023127065 A1 WO2023127065 A1 WO 2023127065A1
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WO
WIPO (PCT)
Prior art keywords
charging
mode
rate
control device
time
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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
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PCT/JP2021/048710
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English (en)
French (fr)
Japanese (ja)
Inventor
正俊 萩原
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Denso Ten Ltd
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Denso Ten Ltd
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Publication date
Application filed by Denso Ten Ltd filed Critical Denso Ten Ltd
Priority to PCT/JP2021/048710 priority Critical patent/WO2023127065A1/ja
Priority to JP2023570550A priority patent/JP7767460B2/ja
Publication of WO2023127065A1 publication Critical patent/WO2023127065A1/ja
Priority to US18/603,504 priority patent/US20240222989A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • 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
    • 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
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/62—Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
    • 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]
    • 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]
    • B60L58/13—Maintaining the SoC within a determined range
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • 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
    • 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
    • H02J7/02—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries for charging batteries from AC mains by converters
    • H02J7/04—Regulation of charging current or voltage
    • 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
    • H02J7/02—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries for charging batteries from AC mains by converters
    • H02J7/04—Regulation of charging current or voltage
    • H02J7/06—Regulation of charging current or voltage using discharge tubes or semiconductor devices
    • 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
    • H02J7/90—Regulation of charging or discharging current or voltage
    • H02J7/92—Regulation of charging or discharging current or voltage with prioritisation of loads or sources
    • 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
    • B60L53/60—Monitoring or controlling charging stations
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using 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
    • 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
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors

Definitions

  • the present invention relates to a charging control device and a charging control method.
  • the charging end time is delayed by the amount of delay in charging start timing, so it is assumed that charging will not be completed by the time of the next run.
  • the present invention has been made in view of the above, and provides a charging control device and a charging control device capable of suppressing deterioration of a secondary battery and avoiding a situation in which charging is not completed before the next run.
  • the object is to provide a control method.
  • a charging control device comprising a control unit for controlling charging of a battery mounted on a vehicle using an external power supply, wherein the control unit , as the charging mode of the battery, a first mode in which the target charging rate is a first charging rate that is a charging rate near full charge, and a second charging rate in which a second charging rate that is lower than the first charging rate is the target charging rate.
  • the charging mode is the first mode
  • charging is controlled so that charging is completed at the charging completion timing based on the next scheduled running time, and the charging mode is set.
  • the second mode charging is controlled so that charging is completed at a timing earlier than the charging completion timing of the first mode.
  • FIG. 1 is a diagram showing an example of mounting a charging control device.
  • FIG. 2 is a diagram showing an overview of the charging control method.
  • FIG. 3 is a block diagram of the charging control device.
  • FIG. 4 is a diagram showing the relationship between ambient temperature and standby time.
  • FIG. 5 is a diagram showing an example of a notification screen.
  • FIG. 6 is a flow chart showing a processing procedure executed by the charging control device.
  • FIG. 1 is a diagram showing an example of mounting a charging control device.
  • FIG. 2 is a diagram showing an overview of the charging control method.
  • a charging control device 10 As shown in FIG. 1, a charging control device 10 according to the embodiment is mounted on a vehicle C.
  • the vehicle C has an onboard battery 40 (see FIG. 3) that is a secondary battery such as a lithium battery.
  • the example of FIG. 1 shows the case where the external power source 100 is a contact-type charging device that supplies power via a cable, the external power source 100 may be a non-contact charging device. .
  • secondary batteries such as lithium-ion batteries
  • a charging rate between 30% and 80% to suppress deterioration of the secondary battery.
  • the charging rate of the secondary battery after charging exceeds 80%, although the travelable distance of the vehicle C increases, the secondary battery deteriorates.
  • the charging control apparatus 10 provides the charging mode for the vehicle-mounted battery 40 in the first mode in which the charging rate exceeding the recommended charging threshold th of the vehicle-mounted battery 40 is set as the target charging rate, and in the charging mode lower than the recommended charging threshold th. and a second mode in which the charging rate is set as the target charging rate.
  • the recommended charging threshold th is a charging rate recommended from the viewpoint of secondary battery deterioration, and is, for example, a charging rate of 80%.
  • the first mode is a full charge mode intended to fully charge the vehicle battery 40
  • the second mode is a deterioration suppression mode intended to suppress deterioration of the vehicle battery 40.
  • the case where the target charging rate exceeds the recommended charging threshold th is defined as the first mode, and the case where the target charging rate is equal to or less than the recommended charging threshold th is defined as the second mode.
  • the first mode is a mode in which the target charging rate is a charging rate near full charge
  • the second charging mode is a charging rate in which the charging rate is lower than that in the first mode, or the deterioration occurs.
  • the second charging mode may be a mode in which a difficult charging rate is set as the target charging rate
  • the first charging mode may be set in which a charging rate higher than the second charging mode is set as the target charging rate.
  • the charging control device 10 performs immediate charging in the second mode, and sets the time when the recommended charging threshold th is exceeded in the first mode in accordance with the next operation start time.
  • the standby time Ts is set according to the operation start time after the chargeable state is established.
  • the vertical axis indicates the charging rate
  • the horizontal axis indicates the passage of time.
  • the chargeable state is a state in which charging can be started or a state in which charging preparations are complete.
  • the charging plug attached to the cable of the external charger is attached to the vehicle, and in the case of wireless charging, it is aligned with the parking position where the wireless charger is installed. The vehicle is parked on the road (Condition A).
  • the chargeable state is determined when the vehicle power switch is turned off (IG-OFF) and it is detected that the occupant has exited the vehicle, such as by detecting door closing, or/or when the charging start switch is operated by the user. It may also be a case where a start operation such as being performed is performed (condition B). For example, when judging the chargeable state, only condition A may be used, or conditions A and B may be combined.
  • time t0 is the time when the vehicle-mounted battery 40 can be charged from the external power supply 100
  • time t3 is the operation start time.
  • the charging rate C2 when the charging mode is the second mode starts charging at time t0 and completes charging at the recommended charging threshold th.
  • the charging rate C1 when the charging mode is the first mode is set so that the charging is completed at time t2, which is the operation start time (the time at which the operation is scheduled or predicted) minus the margin Tm.
  • the standby time Ts is set.
  • the margin Tm corresponds to an example of the first time. That is, in the example shown in FIG. 1, charging of the vehicle-mounted battery 40 from the external power supply 100 is not performed during the period from time t0 to time t1, and charging is started at time t1.
  • the charging rate C1 in the first mode gradually increases from time t1 and reaches 100% at time t2. That is, in this case, the time period in which the charging rate exceeds the recommended charging threshold th can be shortened by the setting of the standby time Ts, so deterioration of the vehicle-mounted battery 40 can be suppressed.
  • the charging control device 10 starts charging after the waiting time Ts has elapsed in the first mode, and immediately starts charging in the second mode.
  • the charging control device 10 it is possible to prevent a situation in which charging is not completed before the next run while suppressing deterioration of the secondary battery.
  • charging to the target charging rate can be completed at an earlier timing than in the first mode. If you try to use , it will be possible.
  • FIG. 3 is a block diagram of the charging control device 10. As shown in FIG. Note that FIG. 3 also shows the vehicle-mounted battery 40, the display device 50, and the user terminal 60. As shown in FIG. 3
  • the vehicle-mounted battery 40 is, for example, a lithium-ion secondary battery, and supplies power to a motor (not shown) and various auxiliary machines (loads). Also, the vehicle-mounted battery 40 is charged by the external power supply 100 or regenerative electric power generated when the vehicle C decelerates.
  • the display device 50 is, for example, a display device installed on the dashboard of the vehicle C or the like.
  • the display device 50 is configured by a touch panel display and has an operation unit.
  • the display device 50 may have the function of a navigation device.
  • the user terminal 60 is, for example, the user's smart phone, tablet terminal, or the like.
  • the user terminal 60 communicates with the charging control device 10 through wired or wireless communication.
  • the user terminal 60 may establish communication connection with the charging control device 10 via the display device 50 .
  • the charging control device 10 has a control section 20 and a storage section 30 .
  • the storage unit 30 is implemented by a semiconductor memory device such as RAM (Random Access Memory), flash memory, etc. In the example of FIG. It has a part 33 .
  • the charging mode storage unit 31 is a storage unit that stores the currently set charging mode.
  • the driving start time storage unit 32 is a storage unit that stores the driving start time.
  • the charging control device 10 may set, as the operation start time, the time input by the user when preparing for charging, schedule information input to the display device 50 by the user, or The next operation start time may be specified based on the input schedule information, or the next operation start time may be estimated from the trend of past operation start times.
  • the environmental temperature storage unit 33 stores the environmental temperature up to the next scheduled travel time at the parking spot. For example, the environmental temperature storage unit 33 stores information about the temperature at the charging point of the vehicle C until the next scheduled travel time as the environmental temperature. For example, the charge control device 10 requests the user terminal 60 to acquire the environmental temperature, and stores the environmental temperature acquired by the user terminal 60 from the Internet in the environmental temperature storage unit 33 .
  • the control unit 20 is a controller, and various programs (not shown) stored in the storage unit 30 are executed using the RAM as a work area, for example, by a CPU (Central Processing Unit) or MPU (Micro Processing Unit). It is realized by being Also, the control unit 20 can be realized by an integrated circuit such as an ASIC (Application Specific Integrated Circuit) or an FPGA (Field Programmable Gate Array).
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • control unit 20 has an SOC (State of Charge) calculation unit 21, a mode setting unit 22, an acquisition unit 23, a calculation unit 24, a notification unit 25, and a charging control unit 26.
  • SOC State of Charge
  • the SOC calculator 21 calculates the SOC (charging rate) of the vehicle-mounted battery 40 .
  • the SOC calculation unit 21 calculates the charging rate by any method such as a current integration method, an open circuit voltage (OCV) estimation method, an extended Kalman filter method, or the like.
  • the mode setting unit 22 sets the charging mode of the vehicle-mounted battery 40 based on the user's operation. For example, mode setting unit 22 sets the charging mode based on operation information input from display device 50 or operation information input from user terminal 60 . Further, the mode setting unit 22 writes to the charging mode storage unit 31 for each charging mode setting.
  • the acquisition unit 23 acquires information about the operation start time and information about the environmental temperature. For example, when the charging mode is the first mode, the acquiring unit 23 causes the display device 50 or the user terminal 60 to display an input screen for inputting the next driving start time at the timing of IG-OFF.
  • the acquisition unit 23 acquires information about the next operation start time by acquiring input information for the input screen from the display device 50 or the user terminal 60 and writes it to the operation start time storage unit 32 .
  • the acquisition unit 23 requests the display device 50 or the user terminal 60 to acquire the environmental temperature, and the display device 50 or the user terminal 60 acquires the environmental temperature acquired from the Internet. .
  • the acquiring unit 23 acquires forecast information about the temperature at the current location of the vehicle C at the next operation start time.
  • the calculation unit 24 calculates charging start timing in the first mode. For example, the calculation unit 24 calculates the charge start timing so that the charge completion timing is the timing obtained by subtracting the margin Tm (see FIG. 2) from the next operation start time.
  • the calculation unit 24 may calculate the charging start timing after adjusting the margin Tm based on the environmental temperature.
  • FIG. 4 is a diagram showing the relationship between environmental temperature and margin. In FIG. 4, the vertical axis indicates the charging rate, and the horizontal axis indicates time.
  • the deterioration of the vehicle-mounted battery 40 depends on the environmental temperature in addition to the charging rate. More specifically, the vehicle-mounted battery 40 is more likely to deteriorate in an environment with a higher environmental temperature. Therefore, when the charging rate of the vehicle battery 40 exceeds the recommended charging threshold th and the environmental temperature is high, the deterioration of the vehicle battery 40 is accelerated.
  • the calculation unit 24 sets the margin Tm short and calculates the charging start timing.
  • the charging rate C1-1 which does not consider the environmental temperature, is used as a reference, and the charging rate C1-2 indicates the case where the environmental temperature is high.
  • the charging start timing which was time t11, is calculated as time t12.
  • the calculation unit 24 may set the margin Tm using this value.
  • the calculation unit 24 estimates whether the temperature is likely to rise based on the time zone (morning, noon, night, etc.) of the operation start time and seasonal information based on the date. Tm may be set.
  • the notification unit 25 notifies information about the current charging mode, for example, at the timing of IG-OFF.
  • the notification unit 25 notifies the user of information about the current charging mode by displaying the current charging mode on the display device 50 or the user terminal 60 .
  • the user can refer to the current charging mode and change the charging mode according to his/her own schedule after charging is completed, so it is possible to appropriately support the user's setting of the charging mode.
  • the notification unit 25 sets the timing when charging becomes possible, such as the timing when the charging plug of the external power supply 100 is connected to the vehicle-mounted battery 40 (the second mode has been set).
  • the user may be notified of information about the standby time Ts or notified that charging will not start immediately in the first mode.
  • the charging mode is the first mode
  • charging is started after the standby time Ts (see FIG. 2). Therefore, for example, if the user forgets to change the operation start time, there is a possibility that charging will not be completed at the original operation start time and the charging rate will be insufficient.
  • the notification unit 25 can provide the user with an opportunity to review the change in the operation start time by notifying the user that charging will be performed after the standby time Ts. Insufficient charging due to omission of settings can be avoided.
  • the notification unit 25 can provide the user with an opportunity to review the change in the operation start time by notifying the user that charging will be performed after the standby time Ts. Insufficient charging due to omission of settings can be avoided.
  • the notification unit 25 can provide the user with an opportunity to review the change in the operation start time by notifying the user that charging will be performed after the standby time Ts. Insufficient charging due to omission of settings can be avoided.
  • the notification unit 25 can provide the user with an opportunity to review the change in the operation start time by notifying the user that charging will be performed after the standby time Ts. Insufficient charging due to omission of settings can be avoided.
  • the notification by performing the notification as described above, when the first mode is set, the user feels uncomfortable because charging does not start immediately (the user feels that there is a failure).
  • the notification unit 25 may notify the charging schedule including the charging start timing in addition to the current charging mode.
  • FIG. 5 is a diagram showing an example of a notification screen.
  • the notification unit 25 notifies the notification screen at the timing of IG-OFF, the timing at which the external power supply 100 is connected to the vehicle battery 40, or the like.
  • the notification screen displays, in addition to information about the current charging mode, a charging schedule indicating charging start timing and charging completion timing as a graph.
  • the example shown in the figure indicates that the next operation start time is 13:30, charging start timing is 12:00, and charging completion timing is 13:00.
  • the user can easily grasp the charging schedule, and the user can easily review the charging schedule.
  • the charging schedule when the charging mode is the first mode is illustrated here, the charging schedule when the charging mode is the second mode may of course be notified.
  • the charging control unit 26 controls charging of the vehicle-mounted battery 40 by the external power source 100 (see FIG. 1). For example, the charging control unit 26 starts charging at a charging start timing according to the current charging mode, and completes charging when the set target charging rate is reached.
  • the charging control unit 26 waits until the charging start timing calculated by the calculating unit 24 and starts charging. Further, when the charging mode is the second mode, the charging control unit 26 starts charging when the charging plug of the external power supply 100 is connected to the vehicle-mounted battery 40 .
  • FIG. 6 is a flowchart showing a processing procedure executed by charging control device 10 .
  • the charging control device 10 first determines whether or not the vehicle C has finished driving in a chargeable environment (step S101). If the charging control device 10 determines that the operation has ended under the chargeable environment (step S101; Yes), the process proceeds to step S102, and if it determines that the operation has not ended under the chargeable environment (step S101; No), the process ends.
  • charging control device 10 determines whether or not the current charging mode is the first mode (step S102), and if the charging mode is the first mode (step S102; Yes), for example, the user Based on the operation or the like, the operation start time is set (step S103).
  • the charging control device 10 sets the charging start time based on the operation start time (step S104), and notifies the user of the set charging start time (step S105). After that, the charging control device 10 determines whether or not the charging start time has come (step S106).
  • step S106 When it is determined that the charging start time has come (step S106; Yes), the charging control device 10 starts charging (step S107) and ends the process. Further, when the charging control device 10 determines that the charging start time has not come yet (step S106; No), it continues the process of step S106.
  • step S102 determines in step S102 that the charging mode is the second mode (step S102; No)
  • step S107 the process proceeds to step S107.
  • the charging control device 10 is a charging control device including the control unit 20 that performs control for charging the battery mounted on the vehicle using the external power supply 100.
  • the control unit 20 As a charging mode of the vehicle-mounted battery 40 (an example of a battery), a first charging rate, which is a charging rate near full charge, is set as a target charging rate, and a second charging rate lower than the first charging rate is set as a target charging.
  • the charging mode is the first mode
  • the charging is controlled so that charging is completed at the charging completion timing based on the next scheduled running time
  • the charging mode is the second mode
  • charging is controlled so that charging is completed at a timing earlier than the charging completion timing of the first mode.
  • the charging control device 10 it is possible to prevent a situation in which charging is not completed before the next run while suppressing deterioration of the secondary battery.
  • the charging control device 10 includes the control unit 20 that controls charging of the battery mounted on the vehicle using the external power supply 100.
  • the control unit 20 is a charging control device, and the control unit 20 controls the charging mode of the vehicle-mounted battery 40 (an example of the battery) in a first mode in which a first charging rate, which is a charging rate near full charge, is set as a target charging rate, and in a first charging mode. It is possible to set the charging mode from a second mode in which the target charging rate is a second charging rate lower than the rate, and when the charging mode is the first mode, the charging is performed at a timing based on the next scheduled travel time. is started, and when the charging mode is the second mode, charging is started at the timing when preparation for starting charging is completed.
  • the charging control device 10 it is possible to prevent a situation in which charging is not completed before the next run while suppressing deterioration of the secondary battery. While suppressing deterioration of the secondary battery, it is possible to avoid a situation in which charging is not completed before the next run.
  • the standby time Ts may be set so that charging is performed during a time period when the electricity rate is low. That is, in the second mode, the charging does not necessarily have to be started immediately, and there is no problem even if the charging is started after a while has passed since the charging is possible, and the charging is started earlier than the charging start timing in the first mode. Charging should be started at sufficiently early timing. Also, in the case of delaying the start of charging in the second mode as well, it is particularly effective to issue the notification in the same manner as in the first mode.
  • setting the charging start timing and setting the charging end timing can derive the other timing by adding or subtracting the time required for charging from one timing, so it is described in the specification.
  • the timing one timing may be rephrased as the other timing.
  • the present invention is not limited to this. That is, the in-vehicle battery 40 may be replaced with various secondary batteries. That is, the present invention may be applied to control of secondary batteries such as personal computers and smart phones.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
PCT/JP2021/048710 2021-12-27 2021-12-27 充電制御装置および充電制御方法 Ceased WO2023127065A1 (ja)

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JP2023570550A JP7767460B2 (ja) 2021-12-27 2021-12-27 充電制御装置および充電制御方法
US18/603,504 US20240222989A1 (en) 2021-12-27 2024-03-13 Charging control device and charging control method

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Cited By (1)

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JP7436317B2 (ja) * 2020-07-29 2024-02-21 日立建機株式会社 電動作業機械

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JP2018102084A (ja) * 2016-12-21 2018-06-28 トヨタ自動車株式会社 充電制御装置
JP2019062721A (ja) * 2017-09-26 2019-04-18 永浦 千恵子 電動車両の充電方法とその充電用コンセント
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