JP5459074B2 - Power supply cable device for vehicles - Google Patents

Description

  The present invention relates to a vehicle power supply cable device that is connected to each of a power output port and a charging port of an electric vehicle and supplies electric power output from the power output port to a battery of the electric vehicle through the charging port.

  In recent years, electric vehicles including large-capacity batteries such as electric vehicles and hybrid vehicles are becoming popular. However, at present, the travelable distance for each charge in the electric vehicle is shorter than the travelable distance for each fuel supply in the engine-driven vehicle. Therefore, the spread of a vehicle power supply station that supplies electric power for charging a battery of an electric vehicle is important for further spread of the electric vehicle.

  The vehicle power supply station is provided with a power output port that is electrically connected to the charging port of the electric vehicle via a power transmission cable. And each of the primary side plug and the secondary side plug provided at both ends of the power transmission cable are connected to the power output port of the vehicle power supply station and the charging port of the electric vehicle, and the power output from the power output port is The battery is supplied to the battery of the electric vehicle through the power transmission cable and the charging port. The power output port is a portion to which a primary side plug (power source side plug) in the power transmission cable is connected. The charging port is a portion to which a secondary side plug (vehicle side plug, charging connector) in the power transmission cable is connected.

  In addition, it is important for the vehicle power supply station to appropriately charge for the use of power. Therefore, in a vehicle power supply station shared by a plurality of users, when user authentication is performed by collating information input by the user with previously registered user information, and a use permission determination result is obtained Therefore, it is necessary to have a mechanism that can supply power to the electric vehicle only.

  For example, in Patent Document 1, in a vehicle power supply station, a charging instruction device performs user authentication by comparing vehicle key information and registration information, and if the authentication is successful, the power supply device is permitted to supply power. A system for outputting a signal is shown.

JP 2009-171700 A

  By the way, since the battery of an electric vehicle has a large storage capacity, it is currently several tens of hours when a power source with a small output is used in a general household, and several tens when a special power source with a large output is used. It takes a long charge time of about several minutes to several hours. That is, in the vehicle power supply device, the time during which the power output port is continuously occupied by one electric vehicle is long.

  Therefore, in order for electric vehicles to spread widely, the power output port of the vehicle power supply station has many parking lots such as parking lots attached to apartment houses such as condominiums, time rental parking lots, and parking lots attached to commercial facilities. It is desirable to install at a low cost for each parking space in the parking lot. In particular, it is desirable that the vehicle power supply station be arranged in a larger number of parking spaces than the number of electric vehicles in the spread period of electric vehicles in the future.

  However, when the system disclosed in Patent Document 1 is employed in a vehicle power supply station, it is necessary to arrange a charging instruction device and a power supply device in all vehicle power supply stations. For this reason, the system disclosed in Patent Document 1 has a problem in that a high cost is required to prepare a charging environment in which electric vehicles can be charged in individual parking spaces in many parking lots.

  On the other hand, in a charging environment in which power output ports are only provided in individual parking spaces in a plurality of parking lots, it is impossible to grasp the usage record of charging for each user, and it is not possible to specify the billing destination of the power charge There was a problem.

  An object of the present invention is to realize a charging environment capable of grasping the usage record of charging for each user in a large number of parking lots at a low cost.

The present invention is a vehicle power supply cable device that is connected to each of a power output port and a charging port of an electric vehicle and supplies electric power output from the power output port to a battery of the electric vehicle through the charging port. And in order to achieve said objective, the vehicle electric power feeding cable apparatus which concerns on this invention is provided with each component shown below.
(1) The first component is a power transmission cable provided at both ends with a primary side plug connected to the power output port and a secondary side plug connected to the charging port.
(2) The second component is an information input unit that inputs user information for identifying a user in accordance with a user operation.
(3) The third component is a registration information acquisition unit that acquires registration information from a storage unit in which registration information including user information is stored in advance.
(4) A usage determination unit that determines whether or not the information can be used by comparing information input by the information input unit with registered information.
(5) The fifth component is a permission signal output unit that outputs a permission signal for permitting charging of the battery in the electric vehicle to the electric vehicle when the use permission determination result is obtained by the usage determination unit. It is.
(6) A sixth component is a charging result information acquisition unit that acquires charging result information indicating the result of charging of the battery executed in response to the permission signal in the electric vehicle from the electric vehicle.
(7) A seventh component is a charging result information output unit that outputs charging result information to a predetermined output destination in association with user information.

The vehicle power supply cable device according to the present invention, further Ru comprising each of the following components.
(8) The eighth component is a switch that is provided in the middle of the power transmission cable and switches between electrical connection and disconnection between the primary side plug and the secondary side plug in accordance with an input switching signal.
(9) The ninth component returns to the cut-off state after the switch is connected until a predetermined power supply end condition is satisfied with respect to the switch when the use permission determination result is obtained by the use determining unit. A switch control unit for outputting the switching signal; The switch control unit determines that the power supply end condition is satisfied when the information input by the information input unit that causes the switch to be switched to the connected state and the use permission determination by the use determination unit are performed again. Determine.

The vehicle power supply cable apparatus according to the present invention is also contemplated that further comprising a charging completion notification acquisition unit. The charging end acquisition unit acquires from the electric vehicle a charging end notification indicating that charging of the battery in the electric vehicle has ended. In this case, the switch control unit determines that the power supply end condition is satisfied even when the charge end notification is acquired.

  The vehicle power supply cable device according to the present invention compares the registration information including the user information with the information input by the operation of the user, and only when the determination result of the use permission is obtained for the electric vehicle. The permission signal for permitting charging of the battery is output. When the electric vehicle charges the battery according to the input of the permission signal, unauthorized use of power can be avoided.

  Furthermore, the vehicle power supply cable device according to the present invention outputs charging performance information associated with user information to a predetermined output destination. For this reason, it is possible to grasp the charge utilization record for each user based on the output charge record information. Therefore, it is possible to charge each user with an appropriate power charge.

  Moreover, what is necessary is just to prepare the electric power feeding cable apparatus for vehicles which concerns on this invention for every user of an electric vehicle, or an electric vehicle. On the other hand, no special device other than the power output port connected to the power source need be installed in the parking space. Therefore, the cost required for each parking space can be kept low by employing the vehicle power supply cable device. That is, according to the present invention, it is possible to realize a charging environment capable of grasping the usage record of charging for each user in a large number of parking lots at a low cost.

  In addition, according to the present invention, it is possible to share one vehicle power supply cable device for a plurality of electric vehicles and to continue to use one vehicle power supply cable even when the electric vehicle is replaced. It becomes. Therefore, according to this invention, it becomes possible to implement | achieve the charging environment which can grasp | ascertain the utilization performance of the charge for every user at lower cost.

  Further, in the vehicle power supply cable device according to the present invention, the switch in the middle of the power transmission cable is switched to the connected state in accordance with the determination of the use permission, so that unauthorized power use can be avoided more reliably.

  Further, in the vehicle power supply device according to the present invention, the connection state switch is returned to the cut-off state in response to the acquisition of the charge end notification from the electric vehicle (establishment of the power supply end condition). Automatic power supply can be terminated.

  In the vehicular power supply device according to the present invention, when the connection state switch performs the information input and the use permission determination again causing the switching to the connection state (when the power supply end condition is satisfied). By returning to the cut-off state, the power supply can be interrupted according to the operation of the authorized user. And it is avoided that the started electric power feeding is interrupted by the intention of other users.

1 is a schematic configuration diagram of a vehicle charging system including a vehicle power supply cable device 1 according to an embodiment of the present invention. 3 is a flowchart showing a procedure of first power supply control by the vehicle power supply cable device 1; 4 is a flowchart showing a part of detailed procedure of first power supply control by the vehicle power supply cable device 1; 5 is a flowchart illustrating an example of a procedure of second power supply control by the vehicle power supply cable device 1;

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The following embodiment is an example embodying the present invention, and does not limit the technical scope of the present invention.

  First, the configuration of a vehicle power supply cable device 1 according to an embodiment of the present invention and a vehicle charging system including the same will be described with reference to FIG. The vehicle power supply cable device 1 is connected to a power output port 13 disposed in the vicinity of a parking space and a charging port 21 in the electric vehicle 9, and the electric power output from the power output port 13 is supplied to the electric vehicle through the charging port 21. 9 is a device that supplies power to the battery 24. The electric vehicle 9 is a vehicle equipped with a large-capacity battery 24 such as an electric vehicle and a hybrid vehicle. Hereinafter, the vehicle power supply cable device 1 is abbreviated as the power supply cable device 1.

  The vehicle charging system includes a power feeding cable device 1, a vehicle power feeding station 10, and an in-vehicle charging device 20 mounted on the electric vehicle 9. The electric vehicle 9 is stopped in the parking space when the battery 24 is charged. A vehicle power supply station 10 provided with a power output port 13 is disposed at a position in the vicinity of each parking space. The power output port 13 is connected to the AC power supply 11 via the power transmission cable 12. Thereby, the electric power output from the AC power supply 11 is transmitted through the power transmission cable 12 to the power output port 13 connected to the end of the power transmission cable 12. The electric vehicle 9 stopped in the parking space is connected to the nearest power output port 13 by the power feeding cable device 1.

  The power feeding cable device 1 includes a primary side plug 31, a secondary side plug 32, a power transmission cable 33, and a power feeding management unit 40. The primary side plug 31 and the secondary side plug 32 are provided at both ends of the power transmission cable 33. The primary side plug 31 is a plug connected to the power output port 13 in the vehicle power supply station 10, and the secondary side plug 32 is a plug connected to the charging port 21 in the electric vehicle 9.

  The power supply management unit 40 is provided in the middle of the power transmission cable 33, and includes a relay 41, an IC card reader 42, an operation unit 43, a display panel 44, a power supply control circuit 45, a data storage unit 46, a vehicle communication circuit 47, and a wireless communication circuit 48. And a power supply circuit 49. Hereinafter, the relay 41 in the vehicle power supply cable device 1 is referred to as a power supply side relay 41.

  The power supply side relay 41 is an example of a switch that is provided in the middle of the power transmission cable 33 and switches between electrical connection and disconnection between the primary side plug 31 and the secondary side plug 32 according to an input switching signal. The electrical connection and disconnection between the power output port 13 and the charging port 21 are switched according to the ON (connection) / OFF (interruption) state of the power supply side relay 41. The initial state of the power supply side relay 41 is a cut-off state.

  The card reader 42 is a device having a function of reading data recorded on the authentication card when the authentication card possessed by the user is brought close to or inserted. That is, the card reader 42 is an example of an apparatus that functions as an information input unit that inputs information in response to an operation by a user. Data read from the authentication card by the card reader 42 is transmitted to the power supply control circuit 45.

  The authentication card is a card possessed by a user who uses the vehicular power supply cable device 1, and a user ID for identifying the user who possesses the card is recorded in advance. The authentication card is, for example, a magnetic card or an IC card.

  When the authentication card is an IC card, the card reader 42 is an IC card reader that reads data from the approached IC card when the user performs an operation to bring the IC card closer. An IC card reader has a function of reading data recorded on an IC tag embedded in an IC card, for example, by short-range wireless communication using RFID (Radio Frequency IDentification).

  On the other hand, when the authentication card is a magnetic card, the card reader 42 is a magnetic card reader. The magnetic card reader includes a card insertion unit into which an authentication card is inserted, and has a function of reading magnetic data recorded on the magnetic card in response to an operation of inserting the magnetic card into the card insertion unit.

  The operation unit 43 is an example of an apparatus that functions as an information input unit that inputs information according to an operation by a user. The operation unit 43 includes operation keys such as a numeric keypad, a confirmation key, and a cancel key, and outputs an operation signal corresponding to the pressed operation key to the power supply control circuit 45 when the user presses the operation key. To do.

  The display panel 44 is a device that functions as an information display unit that displays information to be notified to the user. The display panel 44 is, for example, a liquid crystal display panel, and information displayed on the display panel 44 is output from the power supply control circuit 45.

  The power supply control circuit 45 is a circuit that controls the power supply side relay 41, the display panel 44, the vehicle communication circuit 47, and the wireless communication circuit 48. The power supply control circuit 45 includes a memory such as a ROM (Read Only Memory) in which a control program is stored, and an MPU (Micro Processor Unit) or DSP (DSP) that performs various calculations by executing the program stored in the memory. Digital Signal Processor) and other processors.

  For example, the power supply control circuit 45 performs user authentication processing based on registration information stored in advance in the data storage unit 46 and information input by the card reader 42 and the operation unit 43. Further, the power supply control circuit 45 transmits a signal to the vehicle control unit 25 in the electric vehicle 9 and outputs a switching signal to the power supply side relay 41 in accordance with the result of the user authentication process. In addition, the power supply control circuit 45 outputs various operation guide information to the display panel 44.

  The power supply control circuit 45 performs data communication with the vehicle control unit 25 in the electric vehicle 9 through the vehicle communication circuit 47. Further, the power supply control circuit 45 performs data communication with a predetermined management server through the wireless communication circuit 48.

  When the primary side plug 31 is connected to the power output port 13, the power supply circuit 49 converts an AC voltage obtained from the power output port 13 through the primary side plug 31 into a DC voltage, and the DC voltage is converted into a power supply management unit. 40 is a circuit to be supplied to each device included in 40. The card reader 42, the operation unit 43, the display panel 44, the power supply control circuit 45, the data storage unit 46, the vehicle communication circuit 47 and the wireless communication circuit 48 operate by obtaining power from the power supply circuit 49. In FIG. 1, description of the power supply line from the power supply circuit 49 to each device is omitted.

  On the other hand, the in-vehicle charging device 20 includes a charging port 21, a relay 22, a charging circuit 23, a vehicle control unit 25, a communication unit 26, and an ammeter 27, as shown in FIG.

  The charging port 21 includes a micro switch (not shown) that is switched ON / OFF depending on whether the secondary plug 32 of the power transmission cable 33 is normally connected or not. This microswitch detection signal is input to the vehicle control unit 25.

  The relay 22 is electrically connected between the charging port 21 and the charging circuit 23. The relay 22 is a switch that switches between connection and disconnection of a power transmission path from the charging port 21 to the charging circuit 23 in accordance with a switching signal input from the vehicle control unit 25. Hereinafter, the relay 22 in the electric vehicle 9 is referred to as a vehicle-side relay 22. The initial state of the vehicle-side relay 22 is a cut-off state.

  The charging circuit 23 converts AC power transmitted from the external power supply cable device 1 through the charging port 21 into DC power that meets the specifications of the battery 24, and supplies the DC power to the battery 24, thereby It is a circuit that performs charging. For example, the charging circuit 23 is a rectifier circuit that rectifies AC power, or an AC / DC converter circuit that converts an AC voltage into a DC voltage that meets the specifications of the battery 24.

  The battery 24 included in the electric vehicle 9 is a rechargeable battery that supplies electric power to an electric motor that is a power source for running the electric vehicle 9 and various electrical components mounted on the electric vehicle 9. The battery 24 is, for example, a nickel metal hydride battery or a lithium ion battery.

  The communication unit 26 is a communication interface that transmits and receives data to and from the vehicle communication circuit 47 in the power feeding cable device 1 through the charging port 21 and the power transmission cable 33. For example, the communication unit 26 performs high-speed power line communication (PLC) with the vehicle communication circuit 47 on the vehicle power supply cable device 1 side.

  The ammeter 27 is a measuring instrument that detects a current flowing from the charging port 21 to the charging circuit 23 through the vehicle-side relay 22.

  The vehicle control unit 25 is a circuit that performs various types of information processing and device control based on detection results of various sensors provided in the electric vehicle 9. The vehicle control unit 25 includes a memory such as a ROM in which a control program is stored, and a processor such as an MPU or a DSP that performs various calculations by executing the program stored in the memory.

  For example, the vehicle control unit 25 controls the vehicle-side relay 22 based on the detection result of the micro switch of the charging port 21 and the control signal from the power supply control circuit 45 obtained through the communication unit 26. Further, the vehicle control unit 25 receives various commands from the power supply control circuit 45 in the vehicle power supply cable device 1 through the communication unit 26, and executes processing according to the commands. Further, the vehicle control unit 25 transmits various notifications to the power supply control circuit 45 through the communication unit 26.

  The user's operation procedure for charging the battery 24 of the electric vehicle 9 is as shown in the following [1] and [2].

  [1] First, the user connects the primary side plug 31 and the secondary side plug 32 of the power feeding cable device 1 to the power output port 13 disposed in the vicinity of the parking space and the charging port 21 of his / her own electric vehicle 9. Connect to each of the.

  [2] Next, the user sets an authentication card possessed by the user in the card reader 42 and inputs a predetermined password by operating the operation unit 43. The operation of setting the authentication card in the card reader 42 is, for example, an operation of bringing the authentication card, which is an IC card, close to the card reader 42, or inserting the authentication card, which is a magnetic card, into the card insertion portion of the card reader 42. This means an operation to perform.

  By performing the operation described above by the user, the power supply control circuit 45 in the vehicular power supply cable device 1 allows the user based on the input card information and the personal identification number and the registration information recorded on the authentication card. Execute authentication process. This user authentication process is a process for determining whether to permit the use of the vehicle power supply cable 1, that is, the charging of the battery 24 using the vehicle power supply cable 1.

  Further, when the result of the user authentication process is successful authentication (use permission), the power supply control circuit 45 outputs a charge permission signal (charge permission command) to the in-vehicle charging device 20 of the electric vehicle 9, and The power supply side relay 41 is switched from the cutoff state (OFF state) to the connected state (ON state). The in-vehicle charging device 20 in the electric vehicle 9 supplies power to the charging circuit 23 by switching the vehicle-side relay 22 to a connected state (ON state) when a charging permission signal is obtained from the vehicular power supply cable device 1. Thus, charging of the battery 24 is started.

<First charge control>
Next, an example of the procedure of the first power supply control by the power supply control circuit 45 of the vehicle power supply cable device 1 will be described with reference to the flowcharts shown in FIGS. 2 and 3. The process shown in FIG. 2 is a process that is started when the primary side plug 31 is connected to the power output port 13 and the power supply circuit 49 starts supplying power to each device. FIG. 3 is a flowchart of a detailed procedure of the charging interruption process which is a part of the first power supply control. In the following description, S1 to S38 are identification codes of processing procedures.

<Step S1>
In the first power supply control, first, the power supply control circuit 45 determines whether or not the connection state of the secondary side plug 32 to the charging port 21 is good (OK) (S1).

  For example, the power supply control circuit 45 outputs a response request command to the vehicle control unit 25 of the in-vehicle charging device 20 through the vehicle communication circuit 47, and accordingly, a normal response is received from the vehicle control unit 25. If it is determined that the connection state of the secondary side plug 32 is good. At that time, the vehicle control unit 25 detects the power supply control circuit only when the micro switch of the charging port 21 detects that the secondary side plug 32 of the power transmission cable 33 is normally connected to the charging port 21. A response indicating normality is returned to 45. Alternatively, the power supply control circuit 45 determines that the connection state of the secondary plug 32 is good when communication with the vehicle control unit 25 through the power transmission cable 33 has been performed normally.

<Step S10>
If it is determined that the connection state of the secondary plug 32 is not good (OK), the power supply control circuit 45 notifies the connection error of the secondary plug 32 through the display panel 44 (S10). Thereafter, the power supply control circuit 45 returns the process to step S1 described above. As described above, when the connection state of the secondary side plug 32 is not good (OK), the power supply control circuit 45 does not perform control to start power supply.

<Steps S2 and S3>
On the other hand, when it is determined that the connection state of the secondary side plug 32 is good (OK), the power supply control circuit 45 displays a guidance message prompting the user to set the authentication card in the card reader 42 through the display panel 44. Output (S2). Further, the power supply control circuit 45 monitors that the card reader 42 detects that the authentication card is set (S3).

<Step S4>
When it is detected that the authentication card is set in the card reader 42, the power supply control circuit 45 reads card information from the authentication card through the card reader 42 (S4). Further, the power supply control circuit 45 outputs a message prompting the input of the password through the display panel 44, and inputs the password according to the user's operation on the operation unit 43 (S4). The card information is user ID information recorded in advance on the authentication card.

  As described above, the card reader 42 and the operation unit 43 input a user ID and a personal identification number for identifying the user in accordance with the user's operation (S4). Here, the user's operation includes an operation of inputting information to the operation unit 43 and an operation of bringing the authentication card close to or into the card reader 42. The card reader 42 that executes the process of step S4, the operation unit 43, and the power supply control circuit 45 that controls them are examples of the information input unit.

<Step S5>
Furthermore, the power supply control circuit 45 acquires registration information stored in the data storage unit 46 (S5). The power supply control circuit 45 that executes the process of step S5 is an example of a registration information acquisition unit.

<Step S6>
Subsequently, the power supply control circuit 45 executes a user authentication process for determining whether or not the power supply cable device 1 can be used (S6). In this user authentication process, whether or not charging is permitted by checking the combination of the user ID and the personal identification number obtained in step S4 with the combination of the user ID and personal identification number in the registration information obtained in step S5. It is the process which determines. The power supply control circuit 45 that executes the user authentication process is an example of a usage determination unit.

<Step S7>
Then, the power supply control circuit 45 selects whether to execute the process of step S8 or the process of step S11 next depending on whether or not the authentication by the user authentication process is successful (S7). The success of the authentication by the user authentication process (S6) means that charging of the battery 24 using the vehicle power supply cable 1 is permitted.

<Step S8>
If the authentication by the user authentication process (S6) is unsuccessful, the power supply control circuit 45 notifies that an authentication error has occurred through the display panel 44, that is, charging is not permitted (S11). Thereafter, the power supply control circuit 45 returns the process to step S1 described above. Thus, when the authentication by the user authentication process is unsuccessful, the power supply control circuit 45 does not perform control to start power supply.

<Step S9>
When the authentication by the user authentication process (S6) is successful, the power supply control circuit 45 outputs a charging permission signal (charging permission command) to the vehicle control unit 25 of the in-vehicle charging device 20 through the vehicle communication circuit 47 ( S8). Furthermore, the power supply control circuit 45 outputs an ON signal that is a switching signal for switching from the cutoff state (OFF) to the connected state (ON) to the power supply side relay 41 (S8). Further, the power supply control circuit 45 sets the charging flag to ON when the process of step S8 is executed. The charging flag is flag data indicating whether or not the battery 24 is being charged in the electric vehicle 9. Note that the initial value of the charging flag is OFF, meaning that charging is not in progress.

  On the other hand, when the vehicle control unit 25 of the in-vehicle charging device 20 receives the charge permission signal output in step S8, the vehicle-side relay 22 is switched from the cut-off state to the connected state and held for the vehicle-side relay 22. A switching signal is output. Thereby, charging of the battery 24 by the charging circuit 23 is started.

<Step S9>
In addition, the power supply control circuit 45 executes a charge interruption process after executing the process of step S8 (S9). An example of a detailed procedure of the charging interruption process is shown in the flowchart of FIG.

<Step S21>
As shown in FIG. 3, in the charging interruption process, first, the power supply control circuit 45 outputs a message for guiding an operation necessary for interrupting the charging through the display panel 44 (S21). For example, the power supply control circuit 45 outputs a message indicating that it is necessary to input a personal identification number after setting the authentication card in the card reader 42 in order to interrupt charging.

<Step S22>
Further, the power supply control circuit 45 monitors that the card reader 42 detects that the authentication card is set (S22).

<Steps S23 to S25>
When it is detected that an authentication card has been set in the card reader 42, the power supply control circuit 45 executes the same processing as steps S4 to S6 described above (S23 to S25). That is, the power supply control circuit 45 reads the card information from the authentication card through the card reader 42 and inputs the user's personal identification number through the operation unit 43 (S23). Furthermore, the power supply control circuit 45 acquires registration information stored in the data storage unit 46 (S24), and executes user authentication processing based on the information obtained in steps S23 and S24 (S25).

<Step S26>
Then, the power supply control circuit 45 of the in-vehicle charging device 20 performs the process of step S27 next or executes the process of step S29 depending on whether or not the authentication by the user authentication process (S25) is successful. Whether to do it is selected (S26).

<Step S29>
If the authentication by the user authentication process (S26) is unsuccessful, the power supply control circuit 45 notifies the authentication error, that is, the charging is not interrupted, through the display panel 44 (S29). Thereafter, the power supply control circuit 45 returns the process to step S21 described above.

<Step S27>
When the authentication by the user authentication process (S26) is successful, the power supply control circuit 45 outputs an OFF signal that is a switching signal for switching from the connection state (ON) to the cutoff state (OFF) to the power supply side relay 41. (S27). Thereby, the power feeding from the power feeding cable device 1 to the electric vehicle 9 is interrupted, and the charging of the battery 24 by the charging circuit 23 is also interrupted.

  Charging of the battery 24 by the in-vehicle charging device 20 is interrupted as follows. That is, the vehicle control unit 25 detects that the supply of electric power through the charging port 21 has been interrupted, and outputs a switching signal for holding the vehicle-side relay 22 by switching from the connected state to the disconnected state. To do. Thereby, the charging of the battery 24 by the charging circuit 23 is interrupted. It is detected by the ammeter 27 that the supply of power through the charging port 21 has been interrupted.

  As described above, the power supply control circuit 45 has the same user ID and password as the user ID and password input when the power supply relay 41 is switched to the connected state. When the personal identification number is input again and a determination result of successful authentication is obtained by the second user authentication process, it is determined that the power supply end condition is satisfied (S26).

  In other words, the power supply control circuit 45 inputs the user ID and password that cause the power supply side relay 41 to be switched to the connected state (S4) and the user authentication process for the power supply side relay 41 in the connected state. When the authentication success determination (S6) is performed again in steps S23 and S25, it is determined that the power supply end condition is satisfied (S26). Hereinafter, the power supply end condition determined by the processes in steps S23 to S26 is referred to as a first power supply end condition.

<Step S27>
Then, when the first power supply end condition is satisfied, the power supply control circuit 45 interrupts power supply by outputting an OFF signal to the power supply side relay 41 (S27). As a result, the charging can be interrupted according to the operation of the authorized user. Moreover, it is possible to prevent the started charging from being interrupted by the intention of another user.

<Step S28>
In addition, after the power supply interruption process (S27), the power supply control circuit 45 reads the charging performance information recorded in the data storage unit 46, and the read charging performance information is preliminarily determined through the wireless communication circuit 48. (S28). At that time, the power supply control circuit 45 transmits the charging performance information to the management server in association with the user ID recorded in the data storage unit 46. The charging performance information is information indicating the charging performance of the battery 24 executed in the electric vehicle 9 according to the charging permission signal. Details of the charging performance information will be described later.

<Second charge control>
Next, an example of the procedure of the second power supply control by the power supply control circuit 45 of the vehicle power supply cable device 1 will be described with reference to the flowchart shown in FIG. The second power supply control shown in FIG. 4 is executed in parallel with the first power supply control shown in FIGS. 2 and 3. The second power supply control is a process that is automatically executed regardless of the operation by the user.

<Step S31>
In the second power supply control, first, the power supply control circuit 45 determines whether charging is in progress by referring to the charging flag described above (S31). And the electric power feeding control circuit 45 repeats the process of step S31 until it will be in the condition which is charging.

<Steps S32 and S33>
When charging is in progress, the power supply control circuit 45 executes the following second power supply end condition and third power supply end condition determination processing (S32, S33).

  The second power supply termination condition determination process (S32) is a process for determining whether or not the connection state of the secondary side plug 32 to the charging port 21 is good (OK) as in the process of step S3. .

  The third power supply termination condition determination process (S33) is a process for determining whether or not charging of the electric vehicle 9 is completed. For example, the power supply control circuit 45 receives a charging completion notification command from the vehicle control unit 25 of the electric vehicle 9 through the vehicle communication circuit 47. And the electric power feeding control circuit 45 discriminate | determines that charge with respect to the electric vehicle 9 was completed, when the notification command of completion of charge is received. The vehicle communication circuit 47 and the power supply control circuit 45 that receive the charging completion notification command are examples of the charging end notification acquisition unit.

  On the other hand, in the in-vehicle charging device 20, the charging circuit 23 notifies the vehicle control unit 25 when charging is completed. Further, when the vehicle control unit 25 receives a notification that the charging is completed from the charging circuit 23, the vehicle control unit 25 transmits a charging completion notification command to the power supply control circuit 45 through the communication unit 26.

<Step S34>
Further, when charging is in progress, the power supply control circuit 45 acquires the charging performance information of the battery 24 from the vehicle control unit 25 of the in-vehicle charging device 20 at any time while performing the processes of steps S32 and S33, and the charging performance. Information is recorded in the data storage unit 46 (S34). The charging performance information is information indicating the charging performance of the battery 24 executed in the electric vehicle 9 according to the charging permission signal. The charge performance information includes, for example, information on the amount of electric power used for charging for each time zone divided according to the power unit price. Note that the charging performance information remaining in the data storage unit 46 is the charging performance information recorded last.

  For example, the power supply control circuit 45 periodically transmits a command for requesting charging performance information to the vehicle control unit 25 of the in-vehicle charging device 20 through the vehicle communication circuit 47 under the condition of charging. Further, the power supply control circuit 45 receives the charging result information returned in response to the transmission of the command through the vehicle communication circuit 47 and records the charging result information in the data storage unit 46.

  On the other hand, the vehicle control unit 25 of the in-vehicle charging device 20 integrates the amount of electric power supplied to the charging circuit 23 while the vehicle-side relay 22 is held in the connected state. At that time, the vehicle control unit 25 periodically executes a process of integrating the electric energy for each time zone divided according to the electric power unit price. Furthermore, when the charging control circuit 45 receives a request command for charging performance information from the power feeding control circuit 45 through the communication unit 26, the power feeding control circuit 45 supplies charging performance information including information on the accumulated power amount through the communication unit 26. Send to.

<Steps S35 to S38>
In Steps S32 and S33, when it is determined that the second and third power supply end conditions are satisfied, the power supply control circuit 45 performs power supply interruption processing (S35 to S38) shown below. Run.

  That is, when it is determined that the connection state of the secondary side plug 32 is not good (OK) (S32), the power supply control circuit 45 sends a notification that a connection error of the power supply cable device 1 has occurred through the display panel 44. The connection error information is recorded (S35).

  When it is determined that the charging of the battery 24 is completed (S33), the power supply control circuit 45 performs notification that the charging is completed through the display panel 44 and recording of information that the charging is completed. (S36).

  In steps S35 and S36, the error information and the charging completion information are recorded in the data storage unit 46. That is, the power supply control circuit 45 outputs error information and charging completion information to the data storage unit 46. Further, the error information and the charging completion information are recorded together with the date and time information when the corresponding power supply end condition is established.

  In addition, the power supply control circuit 45 is an OFF signal that is a switching signal for switching the power supply side relay 41 from the connected state (ON) to the cutoff state (OFF) when the second or third power supply end condition is satisfied. Is output (S37). Thereby, the power supply from the power output port 13 is automatically terminated. Therefore, the charging of the battery 24 by the in-vehicle charging device 20 is also terminated. After the processing of steps S35 to S38 is completed, the power supply control circuit 45 returns the processing to step S31 described above.

<Step S38>
In addition, after the power supply termination process (S37), the power supply control circuit 45 reads the charging performance information recorded in the data storage unit 46, and the read charging performance information is preliminarily determined through the wireless communication circuit 48. (S38). At that time, the power supply control circuit 45 transmits the charging performance information to the management server in association with the user ID recorded in the data storage unit 46.

  The management server is a server operated by an administrator who manages billing for power charges. The management server records the charging performance information in the storage unit of the management server in association with the user ID. Thereby, the charge performance information for every user is recorded on the memory | storage part of a management server. The administrator of the management server charges each user based on the charging performance information recorded in the management server.

  And the process of step S32-S38 is repeated sequentially in the condition under charge. The power supply control circuit 45 and the wireless communication circuit 48 that execute the processes of steps S28 and S38 are examples of the charging result information output unit.

  As described above, the power supply control circuit 45 provides a charge permission signal for permitting the electric vehicle 9 to be charged with the battery 24 only when the authentication success determination result is obtained by the user authentication process (S8). Output (S8). The in-vehicle charging device 20 in the electric vehicle 9 charges the battery 24 in response to the input of the charging permission signal. As a result, unauthorized use of power can be avoided.

  Furthermore, the power supply control circuit 45 transmits the charging performance information associated with the user ID to a predetermined management server (S28, S38). Therefore, based on the charging performance information output to the management server, the charging usage history for each user can be grasped. Therefore, it is possible to charge each user with an appropriate power charge.

  Moreover, the power feeding cable device 1 may be prepared for each electric vehicle 9 or for each user of the electric vehicle 9. On the other hand, no special device other than the power output port 13 connected to the AC power source 11 needs to be installed in the parking space. Therefore, the cost required for each parking space can be kept low by employing the vehicular power supply cable device 1. That is, by using the power feeding cable device 1, it is possible to realize a charging environment capable of grasping the usage record of charging for each user in a large number of parking lots at a low cost.

  In addition, the power feeding cable device 1 can be shared for a plurality of electric vehicles 9 and can be continuously used even when the electric vehicles 9 are replaced. Therefore, by adopting the power feeding cable device 1, it is possible to realize a charging environment in which the charging usage record for each user can be grasped at a lower cost.

  In addition, the power supply control circuit 45 applies any of the first power supply end condition to the third power supply condition to the power supply side relay 41 only when the authentication success determination result is obtained by the user authentication process (S8). Until that is established, an ON signal for maintaining the connection state is output (S8), and thereafter an OFF signal for returning to the shut-off state is output (S27, S37). As described above, the power supply side relay 41 in the middle of the power transmission cable 33 is switched to the connected state in accordance with the success of the user authentication process (judgment of use permission), so that unauthorized power use can be avoided more reliably. it can. The power supply control circuit 45 that executes the processes of steps S8, S27, and S37 is an example of a switch control unit.

  Further, in the power feeding cable device 1, the power feeding side relay 41 in the connected state is returned to the cut-off state in response to the acquisition of the charging completion notification from the electric vehicle 9 (establishment of the power feeding end condition). Automatic power supply can be terminated.

  In the vehicular power supply cable device 1, a user ID and a personal identification number, which are information for specifying a user, are shared and input by the card reader 42 and the operation unit 43. However, it is also conceivable that the information specifying the user is only the password entered by the operation unit 43 or only the user ID entered by the card reader 42.

  Further, the above-described vehicle power supply cable device 1 outputs the charging result information to the management server through the wireless communication circuit 48 provided in the device itself. However, it is also conceivable that the power supply control circuit 45 in the vehicle power supply cable device 1 outputs the charging performance information to the management server through the wireless communication circuit included in the electric vehicle 9.

  For example, the electric vehicle 9 may include an on-board device of ETC (Electronic Toll Collection System) as a wireless communication circuit. In this case, the power feeding control circuit 45 can transmit the charging performance information to the management server through the vehicle communication circuit 47, the vehicle control unit 25, and the on-board unit of the ETC. The form of outputting the charging performance information in this way is also an example of the embodiment of the present invention.

  That is, the power supply control circuit 45 transmits the user ID, the charging performance information, and the management server address information to the vehicle control unit 25 through the vehicle communication circuit 47. Next, the vehicle control unit 25 performs wireless communication with the nearest wireless base station that can communicate with the management server through the on-board device of the ETC, so that the user ID, the charging result information, and the management server received from the power supply control circuit 45 are transmitted. Is sent to the radio base station. Furthermore, based on the address information received from the power supply control circuit 45, the radio base station transmits the user ID and the charging performance information received from the power supply control circuit 45 to the management server. The form of outputting the charging performance information in this way is also an example of the embodiment of the present invention.

  It is also conceivable that the vehicle power supply station 10 includes a power supply side communication unit that can communicate with each of the power supply control circuit 45 and the management server. In this case, it is conceivable that the power supply control circuit 45 transmits the user ID and the charging performance information to the management server through the power supply side communication unit. For example, the power supply control circuit 45 transmits the user ID, the charging record information, and the management server address information to the power supply side communication unit through the vehicle communication circuit 47 and the power transmission cable 33. Further, the communication unit on the power supply side transmits the user ID and the charging performance information received from the power supply control circuit 45 to the management server based on the address information received from the power supply control circuit 45. The form of outputting the charging performance information in this way is also an example of the embodiment of the present invention.

  Moreover, in the vehicle power supply cable device 1 described above, the power supply control circuit 45 acquires registration information stored in the data storage unit 46 provided in the device itself. However, it is also conceivable that the power supply control circuit 45 acquires registration information stored in the storage unit of the server computer from an external server computer through a communication interface such as the wireless communication circuit 48. The form of acquiring registration information in this way is also an example of an embodiment of the present invention.

DESCRIPTION OF SYMBOLS 1 Vehicle power supply cable apparatus 9 Electric vehicle 10 Vehicle power supply station 11 AC power supply 12 Power transmission cable 13 Power output port 20 In-vehicle charging device 21 Charging port 22 Relay (vehicle side relay)
DESCRIPTION OF SYMBOLS 23 Charging circuit 24 Battery 25 Vehicle control unit 26 Communication unit 27 Ammeter 31 Primary side plug 32 Secondary side plug 33 Power transmission cable 40 Power supply management unit 41 Relay (power supply side relay)
42 Card Reader 43 Operation Unit 44 Display Panel 45 Power Supply Control Circuit 46 Data Storage Unit 47 Vehicle Communication Circuit 48 Wireless Communication Circuit 49 Power Supply Circuit

Claims (2)

A power feeding cable device for a vehicle connected to each of a power output port and a charging port of an electric vehicle, and supplying electric power output from the power output port to the battery of the electric vehicle through the charging port,
A power transmission cable provided at both ends with a primary side plug connected to the power output port and a secondary side plug connected to the charging port;
An information input unit for inputting user information for identifying the user according to the user's operation;
A registration information acquisition unit for acquiring the registration information from a storage unit in which registration information including the user information is stored in advance;
A use determination unit that determines whether or not the information can be used by comparing the information input by the information input unit with the registration information;
A permission signal output unit that outputs a permission signal for permitting charging of a battery in the electric vehicle to the electric vehicle when a use permission determination result is obtained by the use determination unit;
A charging performance information acquisition unit that acquires charging performance information indicating the charging performance of the battery executed in response to the permission signal in the electric vehicle;
A charging record information output unit that outputs the charging record information to a predetermined output destination in association with the user information;
A switch that is provided in the middle of the power transmission cable and switches between electrical connection and disconnection between the primary side plug and the secondary side plug in accordance with an input switching signal;
Switch control for outputting the switching signal for returning to the cut-off state after making a connection state until a predetermined power supply end condition is satisfied with respect to the switch when a use permission determination result is obtained by the use determination unit And comprising
The switch control unit
It is determined that the power supply end condition is satisfied when the information input by the information input unit that causes the switch to be switched to the connection state and the use permission determination by the use determination unit are performed again. A power feeding cable device for vehicles. A charge end notification acquisition unit that acquires a charge end notification indicating that charging of the battery in the electric vehicle has ended from the electric vehicle;
The vehicle power supply cable device according to claim 1, wherein the switch control unit determines that the power supply end condition is satisfied even when the charge end notification is acquired .

Images