WO2024033979A1 - Système de charge, dispositif de charge, procédé de commande de verrouillage et programme de commande de verrouillage - Google Patents

Système de charge, dispositif de charge, procédé de commande de verrouillage et programme de commande de verrouillage Download PDF

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Publication number
WO2024033979A1
WO2024033979A1 PCT/JP2022/030300 JP2022030300W WO2024033979A1 WO 2024033979 A1 WO2024033979 A1 WO 2024033979A1 JP 2022030300 W JP2022030300 W JP 2022030300W WO 2024033979 A1 WO2024033979 A1 WO 2024033979A1
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WO
WIPO (PCT)
Prior art keywords
video
connector
inlet
electric vehicle
charging
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PCT/JP2022/030300
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English (en)
Japanese (ja)
Inventor
裕 小松
Original Assignee
住友電気工業株式会社
住友電装株式会社
株式会社オートネットワーク技術研究所
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Application filed by 住友電気工業株式会社, 住友電装株式会社, 株式会社オートネットワーク技術研究所 filed Critical 住友電気工業株式会社
Priority to PCT/JP2022/030300 priority Critical patent/WO2024033979A1/fr
Publication of WO2024033979A1 publication Critical patent/WO2024033979A1/fr

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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
    • 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
    • B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/20—Means to switch the anti-theft system on or off
    • B60R25/25—Means to switch the anti-theft system on or off using biometry
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B83/00—Vehicle locks specially adapted for particular types of wing or vehicle
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Definitions

  • the present disclosure relates to a charging system, a charging device, a lock control method, and a lock control program.
  • Non-Patent Document 1 discloses that when a connector and an inlet of a charging device are connected, the connection between the connector and the inlet is locked, and the vehicle is protected from theft, mischief, etc. After charging is completed, the lock is released by the user operating the unlock button provided on the smart key.
  • a charging system is a charging system that charges a battery of an electric vehicle using a charging device, and includes an image acquisition unit that acquires an image of the surroundings of the electric vehicle; a video authentication unit that executes video authentication processing to authenticate a user based on the video, and locking the connection between the connector of the charging device and the inlet of the electric vehicle based on the result of the video authentication processing by the video authentication unit. and a control section that controls a locking section that locks the connection between the connector and the inlet, based on a determination result by the determining section.
  • the present disclosure can be realized not only as a charging system having the above-mentioned characteristic configuration, but also as a charging device included in the charging system, or as a charging control step with characteristic processing in the charging system. It can be realized as The present disclosure can be implemented as a computer program that causes a computer to function as a charging device, or part or all of the charging device can be implemented as a semiconductor integrated circuit.
  • FIG. 1 is a diagram showing an example of the overall configuration of a charging system according to a first embodiment.
  • FIG. 2 is a block diagram showing an example of the hardware configuration of the vehicle body control device.
  • FIG. 3 is a block diagram showing an example of the hardware configuration of the video authentication device.
  • FIG. 4 is a block diagram showing an example of the configuration of the charging device according to the first embodiment.
  • FIG. 5 is a block diagram showing an example of the hardware configuration of the control circuit.
  • FIG. 6 is a functional block diagram showing an example of the functions of the charging system according to the first embodiment.
  • FIG. 7 is a flowchart illustrating an example of charging control processing by the charging control device according to the first embodiment.
  • FIG. 8 is a sequence diagram showing an example of the lock control operation of the charging system according to the first embodiment.
  • FIG. 9 is a flowchart illustrating an example of processing by the vehicle body control device in the lock control operation of the charging system according to the first embodiment.
  • FIG. 10 is a diagram illustrating an example of the overall configuration of a charging system according to the second embodiment.
  • FIG. 11 is a functional block diagram showing an example of the functions of the charging system according to the second embodiment.
  • FIG. 12 is a sequence diagram showing an example of the lock control operation of the charging system according to the second embodiment.
  • FIG. 13 is a sequence diagram showing an example of the lock control operation of the charging system according to the third embodiment.
  • the charging system is a charging system that charges the battery of an electric vehicle with a charging device, and includes an image acquisition unit that acquires an image of the surroundings of the electric vehicle, and a video acquisition unit that acquires an image of the surroundings of the electric vehicle.
  • a video authentication unit that executes a video authentication process to authenticate a user based on a video that has been transmitted, and a connection between a connector of the charging device and an inlet of the electric vehicle based on a result of the video authentication process by the video authentication unit;
  • a determination unit that determines whether to enter the locked state or the unlocked state; and a control unit that controls a locking unit that locks the connection between the connector and the inlet based on the determination result by the determination unit.
  • As a result by using video user authentication, it is possible to easily lock the connection between the connector and the inlet while ensuring security.
  • the determination unit determines that the connection between the connector and the inlet is to be in an unlocked state if the key authentication process is successful and the video authentication process is successful. It's okay. This makes it possible to easily unlock the connection between the connector and the inlet.
  • the determination unit may determine that the connection between the connector and the inlet is locked when at least one of the key authentication process and the video authentication process fails. . This makes it possible to ensure strong security.
  • the image acquisition unit may acquire an image from a camera mounted on the electric vehicle. Thereby, it is possible to authenticate the user using the video obtained by the vehicle-mounted camera.
  • the video acquisition unit may acquire video from a security camera installed in a residence. Thereby, it is possible to authenticate the user using the video obtained by the residential security camera.
  • the charging device includes a power converter that converts AC power to DC power, and the control unit may be provided in the charging device. good. By providing the charging device with an unlocking function, it is not necessary to provide each vehicle with an unlocking function.
  • the determination unit may be provided in the charging device. Accordingly, by providing the charging device with a determining function for determining whether the connection between the connector and the inlet is in a locked state or in an unlocked state, it is not necessary to provide each vehicle with a determining function.
  • the determination unit may be provided in an on-vehicle control device provided in the electric vehicle. This makes it possible to determine whether the connection between the connector and the inlet in the electric vehicle is locked or unlocked, and to instruct the charging device to control the locking according to the determination result.
  • the charging device is a charging device that charges the battery of an electric vehicle, and the charging device charges the battery of an electric vehicle based on the result of video authentication processing that authenticates the user based on the video surrounding the electric vehicle.
  • a determination unit that determines whether the connection between the connector of the device and the inlet of the electric vehicle is in a locked state or an unlocked state; and a determination unit that determines whether the connection between the connector and the inlet is determined based on a determination result by the determination unit.
  • a control unit that controls the locking unit.
  • the lock control method is a lock control method for controlling the locked state of the connection between the inlet of the electric vehicle and the connector of the charging device, and includes a step of acquiring an image of the surroundings of the electric vehicle. , executing a video authentication process to authenticate the user based on the acquired video; and locking the connection between the connector of the charging device and the inlet of the electric vehicle based on the result of the video authentication process. and locking the connection between the connector and the inlet based on the determination result as to whether the connection between the connector and the inlet is locked or unlocked. and controlling the locking section.
  • video user authentication it is possible to easily lock the connection between the connector and the inlet while ensuring security.
  • the lock control program is a lock control program used by a charging device that charges the battery of an electric vehicle, and is configured to send an image to a computer for authenticating a user based on images of the surroundings of the electric vehicle.
  • a step of controlling a locking section that locks the connection between the connector and the inlet is executed based on the result of the determination as to whether the connector is in the unlocked state or the unlocked state.
  • FIG. 1 is a diagram showing an example of the overall configuration of a charging system according to a first embodiment.
  • Charging system 10 is a system for charging battery 110 of electric vehicle 100.
  • Charging system 10 includes an electric vehicle 100 and a charging device 200.
  • the electric vehicle 100 includes a battery 110 for driving a driving motor (not shown). Electric vehicle 100 further includes an inlet 120, a charging management device 130, a vehicle body control device 140, a video authentication device 150, and a camera 160.
  • the charging management device 130 is an in-vehicle control device that manages charging of the battery 110.
  • the vehicle body control device 140 is an on-vehicle control device that controls the overall functions of the vehicle body of the electric vehicle 100.
  • the vehicle body control device 140 controls the lights, doors, windows, mirrors, wipers, etc. of the electric vehicle 100.
  • the vehicle body control device 140 has a smart entry function using a smart key 170. That is, when a user carrying smart key 170 approaches electric vehicle 100, vehicle body control device 140 detects smart key 170 and unlocks the door.
  • the video authentication device 150 is connected to multiple cameras 160.
  • Camera 160 is an in-vehicle camera.
  • the camera 160 is a camera for creating a bird's-eye view of the vehicle body for parking assistance.
  • the camera 160 may be a drive recorder, a driving support camera, or an automatic driving camera.
  • the video authentication device 150 performs user authentication based on the user's video captured by the camera 160.
  • Charging device 200 includes a connector 300 and a charging control device 350.
  • Connector 300 is attachable to and detachable from inlet 120.
  • the inlet 120 is an input/output port for power of the battery 110, and is connected to the battery 110 by a power line.
  • charging device 200 charges battery 110 of electric vehicle 100.
  • the inlet 120 is connected to the charging management device 130 by a communication line.
  • charging management device 130 can communicate with charging device 200 using a particular communication protocol.
  • the charging management device 130 is capable of communication using CAN (Controller Area Network).
  • charging management device 130 is capable of communicating via Ethernet (registered trademark).
  • the connector 300 is provided at the tip of a cable 330 extending from the charging control device 350.
  • Connector 300 has a plug 301 at its tip. Plug 301 can be inserted into a socket provided in inlet 120.
  • the plug 301 is provided with a latch 302a.
  • the latch 302a When the connector 300 is connected to the inlet 120, the latch 302a is caught on the inlet 120, and the latch 302a prevents the connector 300 from coming off from the inlet 120.
  • the connector 300 is further provided with a release button 303a.
  • Release button 303a is used to move latch 302a.
  • the latch 302a moves and disengages from the inlet 120. The user can pull out the connector 300 from the inlet 120 while pressing the release button 303a.
  • FIG. 2 is a block diagram showing an example of the hardware configuration of the vehicle body control device 140.
  • the vehicle body control device 140 includes a processor 141, a nonvolatile memory 142, a volatile memory 143, a wireless communication interface (I/F) 144, a communication I/F 145, and an input/output interface (I/O) 146. include.
  • the volatile memory 143 is, for example, a volatile memory such as SRAM or DRAM.
  • the nonvolatile memory 142 is, for example, a flash memory, a hard disk, a ROM, or the like.
  • the nonvolatile memory 142 stores a control program 147 that is a computer program and data used to execute the control program 147. Each function of the vehicle body control device 140 is realized by the control program 147 being executed by the processor 141.
  • the control program 147 can be stored in a recording medium such as a flash memory, ROM, or CD-ROM.
  • the processor 141 is, for example, a CPU (Central Processing Unit). However, the processor 141 is not limited to a CPU.
  • the processor 141 may be a GPU (Graphics Processing Unit). In one specific example, processor 141 is a multi-core GPU.
  • the processor 141 may be, for example, an ASIC (Application Specific Integrated Circuit), or a programmable logic device such as a gate array or an FPGA (Field Programmable Gate Array). In this case, the ASIC or programmable logic device is configured to be able to execute the same processing as the control program 147.
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • the wireless communication I/F 144 wirelessly communicates with the smart key 170.
  • the vehicle body control device 140 locks or unlocks the door when wireless communication with the smart key 170 is established.
  • the wireless communication I/F 144 periodically transmits a search signal that is a wireless signal.
  • the smart key 170 receives the search signal, it transmits a key signal (response signal).
  • the response signal includes encrypted identification information.
  • vehicle body control device 140 decodes the signal and executes authentication processing (key authentication processing) using identification information. If the key authentication process is successful, the vehicle body control device 140 unlocks the door.
  • the communication I/F 145 is an interface for wired communication. Communication I/F 145 is used for communication in the in-vehicle network. Communication I/F 145 is also used for communication with charging device 200.
  • the communication I/F 145 is a communication circuit for a specific communication protocol, for example, CAN. In another example, the communication I/F 145 may be an Ethernet communication circuit.
  • the I/O 146 is connected to sensors and actuators located on the vehicle body.
  • the I/O 146 is connected to lighting, a sensor for detecting door lock/unlock, a door lock drive motor, a window drive motor, a mirror drive motor, a wiper drive motor, etc. has been done.
  • FIG. 3 is a block diagram showing an example of the hardware configuration of the video authentication device 150.
  • Video authentication device 150 includes a processor 151, nonvolatile memory 152, volatile memory 153, communication I/F 154, and I/O 155.
  • the processor 151, non-volatile memory 152, and volatile memory 153 have the same configuration as the processor 141, non-volatile memory 142, and volatile memory 143 described above, so a description thereof will be omitted.
  • the nonvolatile memory 152 stores a video authentication program 157 that is a computer program and data used to execute the video authentication program 157. Each function of the video authentication device 150 is realized by the video authentication program 157 being executed by the processor 151.
  • the video authentication program 157 can be stored in a recording medium such as a flash memory, ROM, or CD-ROM.
  • the communication I/F 154 is an interface for wired communication. Communication I/F 154 is used for communication in the in-vehicle network.
  • the communication I/F 154 is a communication circuit for a specific communication protocol, for example, CAN. In another example, the communication I/F 154 may be an Ethernet communication circuit.
  • the I/O 155 is connected to the camera 160. I/O 155 can receive video data output from camera 160.
  • FIG. 4 is a block diagram showing an example of the configuration of the charging device according to the first embodiment.
  • Charging control device 350 includes a control circuit 360, a communication I/F 351, a power converter 352, and a battery 353.
  • the charging device 200 is, for example, a V2H (Vehicle to Home) device, and is placed at home.
  • the power converter 352 is connected to a commercial AC power source 400, a load 410 that is an electrical device placed at home, and a battery 353.
  • a power line 317 extends from the power converter 352 through the sheath of the cable 330 to the connector 300.
  • the power converter 352 can charge the battery 110. That is, the power converter 352 can convert AC power from the commercial AC power supply 400 into DC power of a predetermined voltage, and output the DC power. The output DC power is applied to the battery 110 through the power line 317, and the battery 110 is charged. Furthermore, the power converter 352 can also convert the voltage of the DC power output from the battery 353 and output the converted DC power. Thereby, the battery 110 can be charged with the power stored in the battery 353.
  • the power converter 352 can discharge the battery 110. That is, the power converter 352 converts the DC power output from the battery 110 into AC power, outputs the AC power to the load 410, or reversely flows the AC power to the grid-connected commercial AC power source 400. be able to. Furthermore, the power converter 352 can also convert the voltage of the DC power output from the battery 110 and output the converted DC power to the battery 353. Thereby, the battery 353 can be charged with the power stored in the battery 110.
  • the charging system 10 is not limited thereto.
  • it may be a charging system that charges the battery 110 of the electric vehicle 100 using a charging device placed at a public charging station.
  • the public charging device does not have a function of discharging the battery 110, but only has a function of charging it.
  • the control circuit 360 is connected to the power converter 352 and controls the power converter 352. Control circuit 360 detects the connection of connector 300 to inlet 120 and causes power converter 352 to perform a charging operation on battery 110.
  • a latch member 302 is arranged inside the connector 300.
  • the latch member 302 is a lever rotatable about a fulcrum 302b.
  • a first end of the latch member 302 protrudes upward to form a latch 302a.
  • the second end of the latch member 302 is pushed downward by a spring 302c. This forces the latch 302a upward.
  • the connector 300 has a built-in lock portion 303.
  • the lock portion 303 locks the connection state between the connector 300 and the inlet 120.
  • the lock portion 303 is an electromagnetic lock including a solenoid.
  • the lock section 303 is connected to the control circuit 360 by a signal line 312 and operates according to a control signal from the control circuit 360. That is, when the lock section 303 receives a control signal, a current is applied to the solenoid, and the movable piece 303b moves.
  • the latch 302a is in the upper position, the movable piece 303b moves, thereby regulating the rotation of the latch member 302, resulting in a locked state.
  • the movable piece 303b returns to its original position, the rotation of the latch member 302 is no longer restricted and becomes unlocked.
  • a switch 310A is arranged near the lock part 303.
  • the switch 310A is an a-contact microswitch.
  • the switch 310A includes an actuator and a contact mechanism, and the contact mechanism opens and closes depending on the position of the actuator. That is, when the movable piece 303b is in the reference position (the natural position when no current is applied to the solenoid), the movable piece 303b does not press the actuator and the switch 310A is in the OFF state. When the movable piece 303b is in the lock position (the position when a current is applied to the solenoid and the movable core is attracted), the actuator is pushed by the movable piece 303b and the switch 310A is in the ON state.
  • the switch 310A is connected to the control circuit 360 by a signal line 313 passing through the sheath of the cable 330.
  • the control circuit 360 can receive an ON signal from the switch 310A, and detects a locked state by the lock unit 303 by receiving the ON signal.
  • the connector 300 has an LED (Light Emitting Diode) 304.
  • LED 304 is used to notify the user of a successful connection of connector 300 to inlet 120. More specifically, the LED 304 is used to notify the user that the connection of the connector 300 to the inlet 120 has been successful and that the connection state has been locked by the locking unit 303.
  • the LED 304 is connected to the control circuit 360 by a signal line 311 passing through the sheath of the cable 330.
  • the control circuit 360 can send a control signal to the LED 304 to control turning on and turning off the LED 304.
  • the communication I/F 351 is a communication circuit for a specific communication protocol, for example, CAN. In another example, the communication I/F 351 may be an Ethernet communication circuit.
  • a communication line 316 extends from the communication I/F 351 to the connector 300 through the cover of the cable 330 . Communication I/F 351 is used for communication with charging management device 130.
  • FIG. 5 is a block diagram showing an example of the hardware configuration of the control circuit 360.
  • Control circuit 360 includes a processor 361, nonvolatile memory 362, volatile memory 363, and I/O 364.
  • the processor 361, non-volatile memory 362, and volatile memory 363 have the same configuration as the processor 141, non-volatile memory 142, and volatile memory 143 described above, so a description thereof will be omitted.
  • the nonvolatile memory 362 stores a lock control program 365 that is a computer program and data used to execute the lock control program 365.
  • a lock control program 365 that is a computer program and data used to execute the lock control program 365.
  • Each function of the charging control device 350 is realized by the lock control program 365 being executed by the processor 361.
  • the lock control program 365 can be stored in a recording medium such as a flash memory, ROM, or CD-ROM.
  • the I/O 364 is connected to the communication I/F 351 and the power converter 352.
  • the control circuit 360 can input and output signals between the communication I/F 351 and the power converter 352 through the I/O 364. That is, the control circuit 360 can instruct the operation by transmitting a control signal to the communication I/F 351 or the power converter 352, and can receive various information from the communication I/F 351 or the power converter 352. .
  • I/O 364 is connected to signal lines 311, 312, 313, and 315. I/O 364 outputs a control signal to LED 304 via signal line 311 according to instructions from processor 361. This causes the LED 304 to turn on or off. I/O 364 outputs a control signal to lock unit 303 via signal line 312 according to instructions from processor 361. Thereby, the position of the movable piece 303b of the lock portion 303 is controlled. The I/O 364 detects the ON signal from the switch 310A through the signal line 313 and notifies the processor 361 of the ON signal.
  • the I/O 364 While the connector 300 is connected to the inlet 120, the I/O 364 outputs a charging start signal to notify the start of charging via the signal line 315 according to instructions from the processor 361.
  • FIG. 6 is a functional block diagram showing an example of the functions of the charging system according to the first embodiment.
  • the charging system 10 has the following functions: a video acquisition section 101, a video authentication section 102, a key authentication section 103, an authentication result acquisition section 104, a determination section 105, and a control section 201.
  • the video acquisition section 101 and the video authentication section 102 are provided in the video authentication device 150
  • the key authentication section 103, the authentication result acquisition section 104, and the determination section 105 are provided in the vehicle body control device 140.
  • the control unit 201 is provided in the charging device 200.
  • the image acquisition unit 101 acquires images around the electric vehicle 100. That is, the video acquisition unit 101 acquires the video output from the camera 160.
  • the video authentication unit 102 executes a video authentication process to authenticate the user based on the video acquired by the video acquisition unit 101. For example, video authentication processing compares the facial features of a registered user with the features obtained from a video that includes the face, and determines whether the person shown in the video matches the registered user. This is face recognition processing. Video authentication processing compares the features of the registered user's body parts other than the face with the features extracted from the body parts other than the face in the video, and determines whether the person in the video is registered or not. The process may also be a process of determining whether the user matches the specified user.
  • the key authentication unit 103 executes key authentication processing based on the key signal transmitted from the smart key. Specifically, the vehicle body control device 140 receives a key signal that is a response from the smart key 170 to the search signal transmitted from the vehicle body control device 140, and decodes it. In the key authentication process, the identification information obtained by decoding the key signal is compared with the registered identification information, and the identification information transmitted from the smart key 170 matches the registered identification information. This process determines whether
  • the authentication result acquisition unit 104 acquires the result of the key authentication process by the key authentication unit 103. Further, the authentication result acquisition unit 104 acquires the result of the video authentication process by the video authentication unit 102.
  • the determining unit 105 determines whether to lock or unlock the connection between the connector 300 of the charging device 200 and the inlet 120 of the electric vehicle 100 based on the result of the video authentication process by the video authentication unit 102. .
  • the determining unit 105 determines whether the connection between the connector 300 and the inlet 120 is locked or unlocked based on the result of the key authentication process acquired by the authentication result acquiring unit 104.
  • the determining unit 105 determines that the connection between the connector 300 and the inlet 120 is to be unlocked if the key authentication process is successful and the video authentication process is successful. The determining unit 105 determines to lock the connection between the connector 300 and the inlet 120 when at least one of the key authentication process and the video authentication process fails.
  • charging device 200 may include authentication result acquisition section 104 and determination section 105.
  • the control unit 201 controls the lock unit 303 based on the determination result by the determination unit 105. While the connector 300 is connected to the inlet 120 and the battery 110 is being charged, the lock portion 303 is in a locked state. If the determining unit 105 determines that the locking unit 303 should be in the unlocked state, the control unit 201 transmits a control signal to change the locking unit 303 from the locked state to the unlocked state. If the determining unit 105 determines that the locking unit 303 should be in the locked state, the control unit 201 causes the locking unit 303 to maintain the locked state.
  • FIG. 7 is a flowchart illustrating an example of charging control processing by the charging control device according to the first embodiment.
  • the user When charging the battery 110 of the electric vehicle 100, the user connects the connector 300 of the charging device 200 to the inlet 120 of the electric vehicle 100.
  • the processor 361 monitors the output signal of a connector connection detection sensor (not shown) and detects the connection of the connector 300 to the inlet 120 (step S101).
  • the processor 361 transmits a charging start signal via the signal line 315 (step S102). Thereby, the charging management device 130 is notified that the charging operation can be started.
  • the processor 361 starts communication with the electric vehicle 100.
  • battery information is transmitted from charging management device 130 to charging device 200.
  • the battery information is characteristic information of the battery 110, and includes, for example, the maximum capacity, maximum output voltage, and SOC (State Of Charge) of the battery 110.
  • Power information is transmitted from charging device 200 to charging management device 130.
  • the power information is characteristic information of the power converter 352, and includes, for example, the maximum output current and maximum output voltage of the power converter 352.
  • the processor 361 outputs a control signal to the lock unit 303 via the signal line 312 to lock the connection state between the inlet 120 and the connector 300 (step S103). As a result, the connector 300 cannot be removed from the inlet 120, and theft and tampering of the electric vehicle 100 are prevented.
  • the processor 361 controls the power converter 352 and starts charging operation (step S104). As a result, the battery 110 is charged.
  • step S105 the processor 361 determines whether the charging operation has ended. If the charging operation has not ended (NO in step S105), the processor 361 executes step S105 again.
  • step S105 If the charging operation has ended (YES in step S105), the processor 361 notifies the charging management device 130 of the end of the charging operation (step S106). With this, the charging control process ends.
  • FIG. 8 is a sequence diagram showing an example of the lock control operation of the charging system 10 according to the first embodiment.
  • the vehicle body control device 140 periodically transmits a search signal (step S1).
  • a search signal When a user carrying smart key 170 approaches electric vehicle 100, smart key 170 receives a search signal.
  • the smart key 170 that has received the search signal transmits a key signal that is a response signal (step S2).
  • the vehicle body control device 140 receives the key signal.
  • the vehicle body control device 140 that has received the key signal executes key authentication processing (step S3).
  • the camera 160 images the surroundings of the electric vehicle 100.
  • a user approaching electric vehicle 100 is imaged by camera 160.
  • a video including the user is output from the camera 160 (step S4).
  • the video authentication device 150 receives the video output from the camera 160.
  • the video authentication device 150 that has received the video executes video authentication processing (step S5).
  • the video authentication device 150 transmits the result of the video authentication process to the vehicle body control device 140 (step S6).
  • the vehicle body control device 140 receives the result of the video authentication process.
  • the vehicle body control device 140 determines whether to release the locked state of the lock unit 303 based on the result of the video authentication process and the result of the key authentication process (step S7). When the vehicle body control device 140 determines to release the locked state of the lock unit 303, it transmits unlock permission (step S8). Charging management device 130 transfers the unlock permission to charging device 200 (step S9).
  • the charging device 200 Upon receiving the unlock permission, the charging device 200 unlocks the lock unit 303 (step S10). With this, the lock control operation is completed.
  • FIG. 9 is a flowchart illustrating an example of processing by the vehicle body control device 140 in the lock control operation of the charging system 10 according to the first embodiment.
  • the vehicle body control device 140 receives the charging operation end notification sent from the charging device 200. (Step S201).
  • the smart key 170 transmits a key signal, and the vehicle body control device 140 receives the key signal.
  • the processor 141 of the vehicle body control device 140 executes key authentication processing based on the received key signal, and obtains the result of the key authentication processing (step S202).
  • the video authentication device 150 executes video authentication processing based on images around the electric vehicle 100 and transmits the results of the video authentication processing to the vehicle body control device 140.
  • the processor 141 of the vehicle body control device 140 acquires the result of the video authentication process by the video authentication device 150 (step S203).
  • the processor 141 determines whether the key authentication process was successful and the video authentication process was successful (step S204). If at least one of the key authentication process and the video authentication process fails (NO in step S204), the processor 141 returns to step S202. If the key authentication process is successful and the video authentication process is successful (YES in step S204), the processor 141 determines to release the lock by the lock unit 303, and transmits unlock permission (step S205). With this, the processing by the vehicle body control device 140 ends.
  • the charging system according to the second embodiment performs image authentication of a user based on an image captured by a security camera placed in a residence.
  • FIG. 10 is a diagram illustrating an example of the overall configuration of a charging system according to the second embodiment.
  • a charging system 10A according to the second embodiment includes a HEMS (Home Energy Management System) controller 510 placed in a house 500 and a security camera 550.
  • HEMS Home Energy Management System
  • the HEMS controller 510 centrally manages power usage in the house 500.
  • HEMS controller 510 is connected to charging control device 350.
  • the HEMS controller 510 displays the amount of power used in the home on a monitor, controls electrical equipment such as air conditioners and lighting equipment, stores power from the commercial AC power source 400 in the battery 353 at night, and stores power in the battery 353 during the day. 353 is supplied to the load 410.
  • the HEMS controller 510 is connected to a camera 550 that is a security camera. HEMS controller 510 can receive images output from camera 550.
  • FIG. 11 is a functional block diagram showing an example of the functions of the charging system according to the second embodiment.
  • the HEMS controller 510 functions as a video authentication device. That is, the HEMS controller 510 includes the functions of the video acquisition section 101 and the video authentication section 102.
  • the camera 550 images the area around the parked electric vehicle 100.
  • the image acquisition unit 101 acquires images of the surroundings of the electric vehicle 100. That is, the video acquisition unit 101 acquires the video output from the camera 550.
  • the video authentication unit 102 executes video authentication processing to authenticate the user based on the video acquired by the video acquisition unit 101.
  • the rest of the configuration of the charging system 10A according to the second embodiment is the same as the charging system 10 according to the first embodiment, so the same components are denoted by the same reference numerals and the description thereof will be omitted.
  • FIG. 12 is a sequence diagram showing an example of the lock control operation of the charging system 10A according to the second embodiment.
  • the vehicle body control device 140 periodically transmits a search signal (step S11).
  • a user carrying smart key 170 approaches electric vehicle 100
  • smart key 170 receives a search signal.
  • the smart key 170 that has received the search signal transmits a key signal that is a response signal (step S12).
  • the vehicle body control device 140 receives the key signal.
  • the vehicle body control device 140 that has received the key signal executes key authentication processing (step S13).
  • the vehicle body control device 140 transmits an unlock request to the charging management device 130 (step S14).
  • the charging management device 130 Upon receiving the unlock request, the charging management device 130 transmits a video acquisition request to the charging device 200 (step S15). Upon receiving the video acquisition request, charging device 200 transmits an imaging instruction to HEMS controller 510 (step S16). HEMS controller 510 transmits an imaging instruction to camera 550 (step S17), and camera 550 images the surroundings of electric vehicle 100. A user approaching electric vehicle 100 is imaged by camera 550. A video including the user is output from the camera 550 (step S18).
  • the HEMS controller 510 receives the video output from the camera 550.
  • the HEMS controller 510 that has received the video executes video authentication processing (step S19).
  • HEMS controller 510 transmits the result of the video authentication process to vehicle body control device 140 (steps S20, S21).
  • the vehicle body control device 140 receives the result of the video authentication process.
  • the vehicle body control device 140 determines whether to release the locked state of the lock unit 303 based on the result of the video authentication process and the result of the key authentication process (step S22). When the vehicle body control device 140 determines to release the locked state of the lock unit 303, it transmits unlock permission (step S23). Charging management device 130 transfers the unlock permission to charging device 200 (step S24).
  • the charging device 200 Upon receiving the unlock permission, the charging device 200 unlocks the lock unit 303 (step S25). With this, the lock control operation is completed.
  • charging device 200 may include authentication result acquisition section 104 and determination section 105.
  • charging device 200 may include video acquisition section 101 and video authentication section 102.
  • the charging system according to the third embodiment uses the result of the key authentication process based on the key signal for smart entry and the result of the video authentication process, as well as the result of the connection lock between the inlet 120 and the connector 300 transmitted from the smart key 170.
  • the release request is used to determine whether to unlock the inlet 120 and the connector 300.
  • the smart key 170 is provided with a lock release button 171 for unlocking the connection between the inlet 120 and the connector 300.
  • the smart key 170 transmits an unlock request.
  • the unlock request includes encrypted identification information.
  • Vehicle control device 140 receives the unlock request. If the key authentication process is successful, a valid unlock request is received, and the video authentication process is successful, the vehicle body control device 140 determines to release the lock by the lock unit 303. Thereby, sufficiently strong security can be ensured even against attacks using illegally copied key signals or unlock requests (relay attacks).
  • the rest of the configuration of the charging system 10 according to the third embodiment is the same as the charging system 10 according to the first embodiment, so the same components are denoted by the same reference numerals and the description thereof will be omitted.
  • FIG. 13 is a sequence diagram showing an example of the lock control operation of the charging system 10 according to the third embodiment.
  • FIG. 13 shows the operation of the charging system 10 when the video authentication process fails.
  • the vehicle body control device 140 periodically transmits a search signal (step S1).
  • a search signal When a user carrying smart key 170 approaches electric vehicle 100, smart key 170 receives a search signal.
  • the smart key 170 that has received the search signal transmits a key signal that is a response signal (step S2).
  • the vehicle body control device 140 receives the key signal.
  • the vehicle body control device 140 that has received the key signal executes key authentication processing (step S3).
  • step S31 The user presses the unlock button 171 of the smart key 170 (step S31).
  • step S32 the smart key 170 transmits an unlock request (step S32).
  • Vehicle control device 140 receives the unlock request.
  • the vehicle body control device 140 determines whether the received lock release request is valid, and if the lock release request is valid, transmits an imaging instruction to the camera 160 (step S33).
  • the camera 160 Upon receiving the imaging instruction, the camera 160 images the surroundings of the electric vehicle 100. A user approaching electric vehicle 100 is imaged by camera 160. A video including the user (or a malicious third party) is output from the camera 160 (step S4).
  • the video authentication device 150 receives the video output from the camera 160.
  • the video authentication device 150 that has received the video executes video authentication processing (step S5).
  • the video authentication device 150 transmits the result of the video authentication process to the vehicle body control device 140 (step S6).
  • the vehicle body control device 140 receives the result of the video authentication process.
  • the vehicle body control device 140 determines whether to unlock the lock unit 303 based on the result of the video authentication process, the result of the key authentication process, and the validity of the unlock request. For example, if the video authentication process fails, the vehicle body control device 140 determines to prohibit unlocking (step S34). In this case, the vehicle body control device 140 does not transmit an unlock permission, and the lock section 303 is not unlocked. With this, the lock control operation is completed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Human Computer Interaction (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

Ce système de charge charge une batterie d'un véhicule électrique au moyen d'un dispositif de charge, le système de charge comprenant : une unité d'acquisition de vidéo qui acquiert une vidéo de la périphérie du véhicule électrique ; une unité d'autorisation vidéo qui exécute un processus d'autorisation vidéo pour autoriser un utilisateur sur la base de la vidéo acquise par l'unité d'acquisition de vidéo ; une unité de détermination qui, sur la base du résultat du processus d'autorisation vidéo par l'unité d'autorisation vidéo, détermine s'il faut établir une connexion entre un connecteur du dispositif de charge et une entrée du véhicule électrique dans un état verrouillé ou dans un état déverrouillé ; et une unité de commande qui, sur la base du résultat de détermination par l'unité de détermination, commande une unité de verrouillage pour verrouiller la connexion entre le connecteur et l'entrée.
PCT/JP2022/030300 2022-08-08 2022-08-08 Système de charge, dispositif de charge, procédé de commande de verrouillage et programme de commande de verrouillage WO2024033979A1 (fr)

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PCT/JP2022/030300 WO2024033979A1 (fr) 2022-08-08 2022-08-08 Système de charge, dispositif de charge, procédé de commande de verrouillage et programme de commande de verrouillage

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PCT/JP2022/030300 WO2024033979A1 (fr) 2022-08-08 2022-08-08 Système de charge, dispositif de charge, procédé de commande de verrouillage et programme de commande de verrouillage

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007252117A (ja) * 2006-03-16 2007-09-27 Chugoku Electric Power Co Inc:The 電力供給システムおよび電力供給方法
JP2013019192A (ja) * 2011-07-12 2013-01-31 Tokai Rika Co Ltd 給電プラグのロック装置
WO2017072895A1 (fr) * 2015-10-29 2017-05-04 三菱電機株式会社 Dispositif de conversion de courant de véhicule
JP2017220042A (ja) * 2016-06-08 2017-12-14 トヨタホーム株式会社 顔認証システム
KR20170138741A (ko) * 2016-06-08 2017-12-18 (주) 노브 공동주택 전용 지능형 전기자동차 충전장치 및 그것을 포함하는 충전 시스템
CN208044868U (zh) * 2018-04-12 2018-11-02 齐鲁工业大学 基于车辆匹配的停车位管理系统
US20190066416A1 (en) * 2017-08-22 2019-02-28 Ford Global Technologies, Llc Ev charging connector unlock via biometric input
US20200190889A1 (en) * 2018-12-14 2020-06-18 Hyundai Motor Company Vehicle

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007252117A (ja) * 2006-03-16 2007-09-27 Chugoku Electric Power Co Inc:The 電力供給システムおよび電力供給方法
JP2013019192A (ja) * 2011-07-12 2013-01-31 Tokai Rika Co Ltd 給電プラグのロック装置
WO2017072895A1 (fr) * 2015-10-29 2017-05-04 三菱電機株式会社 Dispositif de conversion de courant de véhicule
JP2017220042A (ja) * 2016-06-08 2017-12-14 トヨタホーム株式会社 顔認証システム
KR20170138741A (ko) * 2016-06-08 2017-12-18 (주) 노브 공동주택 전용 지능형 전기자동차 충전장치 및 그것을 포함하는 충전 시스템
US20190066416A1 (en) * 2017-08-22 2019-02-28 Ford Global Technologies, Llc Ev charging connector unlock via biometric input
CN208044868U (zh) * 2018-04-12 2018-11-02 齐鲁工业大学 基于车辆匹配的停车位管理系统
US20200190889A1 (en) * 2018-12-14 2020-06-18 Hyundai Motor Company Vehicle

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