Ground power supply device, non-contact power supply system, control method of ground power supply device, and computer program

Abstract

To erase identification information of a vehicle having a possibility of traveling on a ground power supply device, which is stored in the ground power supply device, at an appropriate timing.SOLUTION: A ground power supply device 2 includes a control device 22 that is configured to perform noncontact power supply to a moving body 3 when identification information of the moving body 3 which is received from a server 1 and is stored in a storage device 222 matches with identification information of the moving body which is received from the moving body 3. The control device 22 is configured to change either a timing for erasing from the storage device 222 the identification information of the moving body 3 which is received from the server 1 and is stored in the storage device 222 or a timing for disabling the effectiveness of the identification information of the moving body 3 which is received from the server 1 and is stored in the storage device 222, based on either road conditions around a road where the ground power supply device 2 is installed or a travel path of the moving body 3.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a non-ground power supply device, a non-contact power supply system, a control method for a ground power supply device, and a computer program. Ro gram.

Background Art

[0002] Patent Document 1 discloses a non-contact power supply system that transmits power non-contact from a ground power supply device provided on the ground to a running vehicle using a transmission method such as magnetic field coupling (electromagnetic induction), electric field coupling, magnetic field resonance coupling (magnetic field resonance), and electric field resonance coupling (electric field resonance).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The ground power supply device needs to confirm whether a vehicle approaching the device is a vehicle that has obtained permission to use the non-contact power supply system. Therefore, in order for the ground power supply device to perform this confirmation, identification information (for example, a virtual ticket issued to a vehicle that has obtained permission to use the system) for identifying the vehicle needs to be transmitted in advance to each ground power supply device where the vehicle that has obtained permission to use the system may travel. Therefore, each ground power supply device needs to store the received identification information. However, from the viewpoints of the storage capacity of the ground power supply device and prevention of electrical theft by a third party, it is necessary to erase or invalidate the identification information that remains unused because the vehicle did not run at an appropriate timing.

[0005] The present invention has been made paying attention to such problems, and an object thereof is to be able to erase or invalidate identification information of a vehicle that may travel on the ground power supply device, which is stored in the ground power supply device, at an appropriate timing.

Means for Solving the Problems

[0006] In order to solve the above problems, a ground power supply device according to an aspect of the present invention includes a communication device capable of communicating with each of a server and a moving body, a storage device, and a control device configured to perform non-contact power supply to the moving body when the identification information of the moving body received from the server and stored in the storage device matches the identification information of the moving body received from the moving body. And the control device further changes the timing to erase the identification information of the moving body received from the server and stored in the storage device from the storage device, or the timing to invalidate the validity of the identification information of the moving body received from the server and stored in the storage device, based on the road conditions around the road where the ground power supply device is installed or the travel trajectory of the moving body.

[0007] Also, in order to solve the above problems, a non-contact power supply system according to an aspect of the present invention includes a server, a moving body, and a ground power supply device having a storage device and configured to be communicable with each of the server and the moving body and capable of performing non-contact power supply to the moving body. And the ground power supply device performs non-contact power supply to the moving body when the identification information of the moving body received from the server and stored in the storage device matches the identification information of the moving body received from the moving body, and based on the road conditions around the road where the ground power supply device is installed or the travel trajectory of the moving body, further changes the timing to erase the identification information of the moving body received from the server and stored in the storage device from the storage device, or the timing to invalidate the validity of the identification information of the moving body received from the server and stored in the storage device.

[0008] In order to solve the above problems, a control method for a ground power supply device according to an aspect of the present invention performs non-contact power supply to a moving body when the identification information of the moving body received from a server and stored in a storage device matches the identification information of the moving body received from the moving body, and based on the road conditions around the road where the ground power supply device is installed or the travel trajectory of the moving body, changes the timing for deleting the identification information of the moving body received from the server and stored in the storage device from the storage device, or the timing for invalidating the validity of the identification information of the moving body received from the server and stored in the storage device.

[0009] In order to solve the above problems, a computer program according to an aspect of the present invention is a computer program for a computer for controlling a ground power supply device including a communication device capable of communicating with each of a server and a moving body, and a storage device, and causes the ground power supply device to perform non-contact power supply to the moving body when the identification information of the moving body received from the server and stored in the storage device matches the identification information of the moving body separately received from the moving body, and based on the road conditions around the road where the ground power supply device is installed or the travel trajectory of the moving body, changes the timing for deleting the identification information of the moving body received from the server and stored in the storage device from the storage device, or the timing for invalidating the validity of the identification information of the moving body received from the server and stored in the storage device.

Advantages of the Invention

[0010] According to these aspects of the present invention, the identification information of a vehicle that may travel on the ground power supply device can be deleted or invalidated from the ground power supply device at an appropriate timing based on the road conditions around the road where the ground power supply device is installed or the travel trajectory of the moving body.

Brief Description of the Drawings

[0011]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Embodiments for Carrying Out the Invention

[0012] Hereinafter, embodiments will be described in detail with reference to the drawings. In the following description, the same reference numerals are assigned to similar components.

[0013] (First Embodiment) FIG. 1 is a schematic configuration diagram of a non-contact power supply system 100 according to the first embodiment of the present invention.

[0014] The non-contact power supply system 100 includes a server 1, a ground power supply device 2, and a vehicle 3 which is an example of a moving body, and is configured to perform non-contact power transmission by magnetic resonance coupling (magnetic field resonance) from the ground power supply device 2 to the vehicle 3 that has obtained system use permission and is either running or parked. In FIG. 1, as an example of an installation example of the ground power supply device 2, an example is shown in which the ground power supply devices 2 are continuously set at predetermined intervals along a road. In the following description, the road on which the ground power supply device 2 is installed is referred to as an "electrified road" as necessary.

[0015] In this specification, the term "running" means a state in which the vehicle 3 is located on a road for running. Therefore, the term "running" includes not only a state in which the vehicle 3 is actually running at any speed greater than zero, but also a state in which the vehicle 3 is stopped on a road, for example, waiting for a signal.

[0016] As shown in FIG. 1, the server 1 includes a server communication unit 11, a server storage unit 12, and a server processing unit 13.

[0017] The server communication unit 11 has a communication interface circuit for connecting the server 1 to the network 6, and is configured to be able to communicate with each of the ground power supply device 2 and the vehicle 3 via the network 6.

[0018] The server storage unit 12 has a storage medium such as an HDD (Hard Disk Drive), an SSD (Solid State DRIVE), an optical recording medium, or a semiconductor memory, and stores various computer programs and data used in the processing by the server processing unit 13.

[0019] The server processing unit 13 has one or more CPUs (Central Processing Units) and their peripheral circuits. The server processing unit 13 executes various computer programs stored in the server storage unit 12 and comprehensively controls the overall operation of the server 1, and is, for example, a processor.

[0020] Next, with reference to FIGS. 2 to 4, the configurations of the in-road power feeding device 2 and the vehicle 3 according to the present embodiment will be described. FIG. 2 is a diagram showing an example of the configurations of the in-road power feeding device 2 and the vehicle 3 according to the present embodiment.

[0021] As shown in FIG. 2, the in-road power feeding device 2 includes an in-road side communication device 71, a power transmission device 4, a power source 21, and a power transmission controller 22. The in-road side communication device 71, the power source 21, and the power transmission controller 22 may be embedded in the road, or may be arranged at a location separate from the road (including the ground).

[0022] The in-road side communication device 71 is configured to be capable of communicating with the server 1, the vehicle 3, an external communication center, and the like.

[0023] In the present embodiment, the in-road side communication device 71 is configured to be able to connect to the network 6 via a wireless base station by accessing the wireless base station connected via the network 6 and a gateway or the like. Thereby, wide-area wireless communication is performed between the in-road side communication device 71 and the server 1, and for example, various types of information exchange necessary for performing non-contact power feeding to the vehicle 3 are performed. Wide-area wireless communication is communication with a longer communication distance than the narrow-area wireless communication described later. Specifically, for example, it is communication with a communication distance of 10 meters to 10 kilometers. As the wide-area wireless communication, various wireless communications with a long communication distance can be used. For example, communication conforming to any communication standard such as 4G, LTE, 5G, WiMAX, etc. formulated by 3GPP, IEEE is used.

[0024] In this embodiment, the ground-side communication device 71 is configured to be able to directly perform short-range wireless communication with the vehicle-side communication device 72 mounted on the vehicle 3 using a predetermined wireless communication line. Short-range wireless communication is communication with a shorter communication distance than wide-area wireless communication. Specifically, for example, it is communication with a communication distance of less than 10 meters. As the short-range wireless communication, various short-distance wireless communications with a short communication distance can be used. For example, communication conforming to any communication standard (for example, Bluetooth (registered trademark), ZigBee (registered trademark)) established by IEEE, ISO, IEC, etc. is used. Further, as a technology for performing short-range wireless communication, for example, RFID (Radio Frequency Identification), DSRC (dedicated Short Range Communication), etc. are used.

[0025] In this embodiment, the ground-side communication device 71 is configured to communicate with an external communication center such as a road traffic information center and receive external information. The external information is, for example, road traffic information such as the traffic volume, traffic jam length, average vehicle speed, and average vehicle passing time in the electrified road section where the ground power supply device 2 is installed.

[0026] The power source 21 supplies power to the power transmission device 4. The power source 21 is, for example, a commercial AC power source that supplies single-phase AC power. Note that the power source 21 may be another AC power source that supplies three-phase AC power, or may be a DC power source such as a fuel cell.

[0027] The power transmission device 4 transmits the power supplied from the power source 21 to the vehicle 3. The power transmission device 4 includes a power transmission-side rectifier circuit 41, an inverter 42, and a power transmission-side resonance circuit 43. In the power transmission device 4, the AC power supplied from the power source 21 is rectified in the power transmission-side rectifier circuit 41 and converted into a DC current, and this DC current is converted into AC power in the inverter 42, and this AC power is supplied to the power transmission-side resonance circuit 43.

[0028] The power transmission side rectifier circuit 41 is electrically connected to the power supply 21 and the inverter 42. The power transmission side rectifier circuit 41 rectifies the AC power supplied from the power supply 21, converts it into DC power, and supplies the DC power to the inverter 42. The power transmission side rectifier circuit 41 is, for example, an AC / DC converter.

[0029] The inverter 42 is electrically connected to the power transmission side rectifier circuit 41 and the power transmission side resonance circuit 43. The inverter 42 converts the DC power supplied from the power transmission side rectifier circuit 41 into AC power (high-frequency power) with a frequency higher than that of the AC power of the power supply 21, and supplies the high-frequency power to the power transmission side resonance circuit 43.

[0030] The power transmission side resonance circuit 43 has a resonator composed of a coil 44 and a capacitor 45. Various parameters of the coil 44 and the capacitor 45 (the outer diameter and inner diameter of the coil 44, the number of turns of the coil 44, the capacitance of the capacitor 45, etc.) are determined so that the resonance frequency of the power transmission side resonance circuit 43 becomes a predetermined set value. The predetermined set value is, for example, 10 [kHz] to 100 [GHz], and preferably 85 [kHz] defined by the SAE TIR J2954 standard as the frequency band for non-contact power transmission.

[0031] The power transmission side resonance circuit 43 is arranged at the center of the lane through which the vehicle 3 passes so that the center of the coil 44 is located at the center of the lane. When the high-frequency power supplied from the inverter 42 is applied to the power transmission side resonance circuit 43, the power transmission side resonance circuit 43 generates an alternating magnetic field for power transmission. When the power supply 21 is a DC power supply, the power transmission side rectifier circuit 41 may be omitted.

[0032] The power transmission controller 22 performs various controls of the ground power supply device 2. For example, the power transmission controller 22 is electrically connected to the inverter 42 of the power transmission device 4 and controls the inverter 42 to control the power transmission by the power transmission device 4. The power transmission controller 22 also communicates with the server 1 and the vehicle 3 via the ground side communication device 71. The vehicle 3 can communicate directly via the ground side communication device 71 or indirectly via the server 1 from the ground side communication device 71.

[0033] FIG. 3 is a schematic configuration diagram of the power transmission controller 22 and the devices connected to the power transmission controller 22.

[0034] The power transmission controller 22 includes a communication interface 221, a storage unit 222, and a power transmission processing unit 223. The communication interface 221, the storage unit 222, and the power transmission processing unit 223 are connected to each other via signal lines.

[0035] The communication interface 221 has an interface circuit for connecting the power transmission controller 22 to various devices (for example, the inverter 42, the ground-side communication device 71, and the ground-side sensor 23 described later) that make up the ground power supply device 2. The power transmission controller 22 communicates with various devices that make up the ground power supply device 2 via the communication interface 221.

[0036] The storage unit 222 has a storage medium such as an HDD, an SSD, an optical recording medium, or a semiconductor memory, and stores various computer programs, data, etc. used in the processing by the power transmission processing unit 223.

[0037] The power transmission processing unit 223 has one or more CPUs (Central Processing Units) and its peripheral circuits. The power transmission processing unit 223 executes various computer programs stored in the storage unit 222 and comprehensively controls the overall operation of the ground power supply device 2, and is, for example, a processor.

[0038] The power transmission controller 22 is connected to a ground-side sensor 23. The ground-side sensor 23 includes, for example, a power transmission device current sensor that detects the current flowing through various devices of the power transmission device 4 (particularly, the power transmission-side resonance circuit 43, the inverter 42, and the power transmission-side rectifier circuit 41), a power transmission device voltage sensor that detects the voltage applied to various devices of the power transmission device 4, a power transmission device temperature sensor that detects the temperature of various devices of the power transmission device 4, a foreign object sensor that detects foreign objects on the road where the power transmission device 4 is embedded, and a living body sensor that detects living bodies on the road where the power transmission device 4 is embedded. The output of the ground-side sensor 23 is input to the power transmission controller 22.

[0039] Returning to FIG. 2, the vehicle 3 includes a vehicle-side communication device 72, a power receiving device 5, a motor 31, a battery 32, a power control unit (PCU) 33, and a vehicle controller 34. The vehicle 3 according to the present embodiment is a battery electric vehicle (BEV) that uses only the battery 32 as a power source, but may also be a so-called hybrid vehicle (HEV; Hybrid Electric Vehicle, or PHEV; Plug-in Hybrid Electric Vehicle) equipped with a power source such as an internal combustion engine in addition to the battery 32, and the type thereof is not particularly limited.

[0040] The vehicle-side communication device 72 is configured to be communicable with the server 1 and the ground power feeding device 2. In the present embodiment, the vehicle-side communication device 72 is configured to be able to connect to the network 6 via a wireless base station by accessing the wireless base station connected via the network 6 and a gateway or the like. Thereby, wide-area wireless communication is performed between the vehicle-side communication device 72 and the server 1.

[0041] Also, the vehicle-side communication device 72 is configured to be able to directly perform short-range wireless communication with the ground-side communication device 71 of each ground power feeding device 2 using a predetermined wireless communication line.

[0042] The motor 31 is, for example, an AC synchronous motor and functions as both an electric motor and a generator. When the motor 31 functions as an electric motor, it is driven using the electric power stored in the battery 32 as a power source. The output of the motor 31 is transmitted to the wheels 30 via a speed reducer and an axle. On the other hand, when the vehicle 3 decelerates, the motor 31 is driven by the rotation of the wheels 30, and the motor 31 functions as a generator to generate regenerative power.

[0043] The battery 32 is a rechargeable secondary battery and is composed of, for example, a lithium-ion battery, a nickel-metal hydride battery, or the like. The battery 32 stores the electric power necessary for the vehicle 3 to travel (for example, the driving power of the motor 31). When the electric power received by the power receiving device 5 is supplied to the battery 32, the battery 32 is charged. Also, when the regenerative power generated by the motor 31 is supplied to the battery 32, the battery 32 is charged. When the battery 32 is charged, the state of charge (SOC) of the battery 32 is restored. Note that the battery 32 may also be chargeable by an external power source other than the ground power supply device 2 via a charging port provided in the vehicle 3.

[0044] The PCU 33 is electrically connected to the battery 32 and the motor 31. The PCU 33 includes an inverter, a boost converter, and a DC / DC converter. The inverter converts the DC power supplied from the battery 32 into AC power and supplies the AC power to the motor 31. On the other hand, the inverter converts the AC power (regenerative power) generated by the motor 31 into DC power and supplies the DC power to the battery 32. The boost converter boosts the voltage of the battery 32 as necessary when the power stored in the battery 32 is supplied to the motor 31. The DC / DC converter steps down the voltage of the battery 32 when the power stored in the battery 32 is supplied to electronic devices such as headlights.

[0045] The power receiving device 5 supplies the electric power received from the power transmitting device 4 to the battery 32. The power receiving device 5 includes a power receiving side resonance circuit 51, a power receiving side rectifying circuit 54, and a charging circuit 55.

[0046] The power receiving side resonance circuit 51 is arranged at the bottom of the vehicle 3 so that the distance from the road surface becomes small. The power receiving side resonance circuit 51 has the same configuration as the power transmitting side resonance circuit 43 and has a resonator composed of a coil 52 and a capacitor 53. Various parameters of the coil 52 and the capacitor 53 (the outer diameter and inner diameter of the coil 52, the number of turns of the coil 52, the capacitance of the capacitor 53, etc.) are determined so that the resonance frequency of the power receiving side resonance circuit 51 coincides with the resonance frequency of the power transmitting side resonance circuit 43. If the deviation amount between the resonance frequency of the power receiving side resonance circuit 51 and the resonance frequency of the power transmitting side resonance circuit 43 is small, for example, if the resonance frequency of the power receiving side resonance circuit 51 is within the range of ±20% of the resonance frequency of the power transmitting side resonance circuit 43, the resonance frequency of the power receiving side resonance circuit 51 does not necessarily have to coincide with the resonance frequency of the power transmitting side resonance circuit 43.

[0047] When the power receiving side resonance circuit 51 faces the power transmitting side resonance circuit 43 and an alternating magnetic field is generated by the power transmitting side resonance circuit 43, the vibration of the alternating magnetic field is transmitted to the power receiving side resonance circuit 51 that resonates at the same resonance frequency as the power transmitting side resonance circuit 43. As a result, an induced current flows through the power receiving side resonance circuit 51 by electromagnetic induction, and an induced electromotive force is generated in the power receiving side resonance circuit 51 by the induced current. That is, the power transmitting side resonance circuit 43 transmits power to the power receiving side resonance circuit 51, and the power receiving side resonance circuit 51 receives power from the power transmitting side resonance circuit 43.

[0048] The power receiving side rectifying circuit 54 is electrically connected to the power receiving side resonance circuit 51 and the charging circuit 55. The power receiving side rectifying circuit 54 rectifies the alternating current power supplied from the power receiving side resonance circuit 51 and converts it into direct current power, and supplies the direct current power to the charging circuit 55. The power receiving side rectifying circuit 54 is, for example, an AC / DC converter.

[0049] The charging circuit 55 is electrically connected to the power receiving side rectifying circuit 54 and the battery 32. In particular, it is connected to the battery 32 via the relay 38. The charging circuit 55 converts the DC power supplied from the power receiving side rectifying circuit 54 to the voltage level of the battery 32 and supplies it to the battery 32. When the power transmitted from the power transmission device 4 is supplied to the battery 32 by the power receiving device 5, the battery 32 is charged. The charging circuit 55 is, for example, a DC / DC converter.

[0050] The vehicle controller 34 performs various controls of the vehicle 3. For example, the vehicle controller 34 is electrically connected to the charging circuit 55 of the power receiving device 5 and controls the charging circuit 55 to control the charging of the battery 32 by the power transmitted from the power transmission device 4. Further, the vehicle controller 34 is electrically connected to the PCU 33 and controls the PCU 33 to control the power transfer between the battery 32 and the motor 31. Furthermore, the vehicle controller 34 controls the vehicle side communication device 72.

[0051] FIG. 4 is a schematic configuration diagram of the vehicle controller 34 and the devices connected to the vehicle controller 34.

[0052] The vehicle controller 34 includes a communication interface 341, a storage unit 342, and a vehicle processing unit 343. The communication interface 341, the storage unit 342, and the vehicle processing unit 343 are connected to each other via signal lines.

[0053] The communication interface 341 has an interface circuit for connecting the vehicle controller 34 to an in-vehicle network conforming to a standard such as CAN. The vehicle controller 34 communicates with other devices via the communication interface 341.

[0054] The storage unit 342 has a storage medium such as an HDD, an SSD, an optical recording medium, or a semiconductor memory, and stores various computer programs and data used in the processing by the vehicle processing unit 343.

[0055] The vehicle processing unit 343 includes one or more CPUs (Central Processing Units) and their peripheral circuits. The vehicle processing unit 343 executes various computer programs stored in the storage unit 342 and comprehensively controls the overall operation of the vehicle 3, and is, for example, a processor.

[0056] Furthermore, the vehicle 3 further includes a GNSS receiver 35, a storage device 36, a plurality of vehicle-side sensors 37, a relay 38, and an HMI device 39. The GNSS receiver 35, the storage device 36, the vehicle-side sensors 37, the relay 38, and the HMI device 39 are electrically connected to the vehicle controller 34 via an in-vehicle network.

[0057] The GNSS receiver 35 detects the current position of the vehicle 3 (for example, the latitude and longitude of the vehicle 3) based on the positioning information obtained from a plurality (for example, three or more) of positioning satellites. The output of the GNSS receiver 35, that is, the current position of the vehicle 3 detected by the GNSS receiver 35, is transmitted to the vehicle controller 34.

[0058] The storage device 36 stores data. The storage device 36 includes, for example, an HDD, an SSD (Solid State Drive), or an optical recording medium. In this embodiment, the storage device 36 stores map information. The map information includes information such as the installation position information of the ground power supply device 2 in addition to information about roads. The vehicle controller 34 acquires the map information from the storage device 36. Note that the storage device 36 may not include map information. In this case, the vehicle controller 34 may acquire the map information from outside the vehicle 3 (for example, the server 1) via the vehicle-side communication device 72.

[0059] The vehicle-side sensor 37 detects the state of the vehicle 3. In the present embodiment, the vehicle-side sensor 37 includes, as a sensor for detecting the state of the vehicle 3, a speed sensor for detecting the speed of the vehicle 3, a battery temperature sensor for detecting the temperature of the battery 32, a power receiving device temperature sensor for detecting the temperature of various devices of the power receiving device 5 (particularly, the power receiving side resonance circuit 51 and the power receiving side rectifying circuit 54), a battery current sensor for detecting the charging current value and the discharging current value of the battery 32, a power receiving device current sensor for detecting the current flowing through various devices of the power receiving device 5, and a power receiving device voltage sensor for detecting the voltage applied to various devices of the power receiving device 5. The output of the vehicle-side sensor 37 is input to the vehicle controller 34.

[0060] The relay 38 is disposed between the battery 32 and the power receiving device 5 and connects and disconnects the battery 32 and the power receiving device 5. When the relay 38 is connected, the power received by the power receiving device 5 is supplied to the battery 32. However, when the relay 38 is disconnected, no current flows from the power receiving device 5 to the battery 32, and thus the power receiving device 5 cannot substantially receive power.

[0061] The HMI device 39 is an interface for information exchange with the vehicle occupants. The HMI device 39 according to the present embodiment includes a display and a speaker for providing various information to the vehicle occupants, and a touch panel (or operation buttons) for the vehicle occupants to perform information input operations. The HMI device 39 transmits the input information input by the vehicle occupants to various devices (for example, the vehicle controller 34) that require the input information via the in-vehicle network, and provides the information received via the in-vehicle network to the vehicle occupants by displaying it on the display.

[0062] Next, with reference to the operation sequence diagram of FIG. 5, an implementation method of power supply by non-contact power feeding according to the present embodiment will be described.

[0063] In step S1, the vehicle controller 34 determines whether the vehicle 3 (the host vehicle) on which the vehicle controller 34 is mounted requests wireless power transfer. If the host vehicle 3 requests wireless power transfer, the vehicle controller 34 proceeds to the process of step S2. On the other hand, if the host vehicle 3 does not request wireless power transfer, the vehicle controller 34 ends the process. In the present embodiment, the vehicle occupant can manually switch the presence or absence of a request for wireless power transfer via the HMI device 39, but it is not limited thereto. For example, the presence or absence of a request for wireless power transfer may be automatically switched according to the state of charge of the battery 32.

[0064] In step S2, after establishing a communication connection with the server 1 by performing, for example, a three-way handshake, the vehicle controller 34 transmits a usage request signal for the wireless power transfer system 100 to the server 1. This usage request signal includes, for example, various types of information (such as authentication information) necessary for using the wireless power transfer system 100.

[0065] In step S3, the server 1 confirms whether the vehicle 3 that is the source of the usage request signal has the authority to use the wireless power transfer system 100 based on authentication information and the like, and transmits an encryption key for decrypting a system usage ticket, which will be described later, after encryption, to the vehicle 3 for which the confirmation is obtained.

[0066] In step S4, the vehicle controller 34 determines whether it has passed a checkpoint set at a point before the electrified road section. If the vehicle controller 34 has passed the checkpoint, it proceeds to the process of step S5. On the other hand, if the vehicle controller 34 has not passed the checkpoint, it determines again whether it has passed the checkpoint after a predetermined time has elapsed.

[0067] Whether the vehicle has passed through the checkpoint can be determined by the vehicle controller 34, for example, if a gate is installed at the checkpoint, by receiving a signal generated from the gate. At that time, the vehicle controller 34 can receive checkpoint information including the position information of the passed checkpoint from the gate. Also, for example, if the checkpoint information is included in the map information in the storage device 36 or if the checkpoint information can be received from the server 1, it is also possible to determine whether the vehicle has passed through the checkpoint based on the position information of the host vehicle 3 and the position information of the checkpoint. Thus, the method for determining whether the vehicle has passed through the checkpoint is not particularly limited.

[0068] In this embodiment, in step S4, it is determined whether the vehicle has passed through the checkpoint, but it is not limited to this. For example, it may be determined whether the vehicle has approached the checkpoint.

[0069] Whether the vehicle has approached the checkpoint can be determined by the vehicle controller 34, for example, if a device that transmits a signal to the vehicle 3 located within a certain range with respect to the checkpoint is provided at the checkpoint, by receiving the signal generated from the device. It is not limited to this, and it can also be determined based on the position information of the host vehicle 3 and the position information of the checkpoint. A certain range with respect to the checkpoint can be, for example, a part of the road section before entering the electrified road section if the road section where signal waiting occurs to enable non-contact power supply to the vehicles waiting for the signal is an electrified road section.

[0070] In step S5, the vehicle controller 34 transmits a request to issue a system use ticket, which is a virtual ticket for using the non-contact power supply system 100, to the server 1 together with the identification information of the host vehicle and the checkpoint information.

[0071] In step S6, when the server 1 receives an issuance request for a system use ticket, it identifies the vehicle 3 of the requester based on the identification information. Then, the server 1 issues a first ticket, which is a system use ticket for transmission to the identified vehicle 3 of the requester and is a unique system use ticket of each vehicle 3 having the right to use the non-contact power supply system 100. At the same time, the server 1 also issues a second ticket, which is a system use ticket corresponding to the first ticket and is a system use ticket for transmission to the ground power supply device 2.

[0072] In step S7, the server 1 transmits the encrypted first ticket to the vehicle 3 of the requester of the system use ticket, and transmits the second ticket to each ground power supply device 2 associated with the checkpoint. The ground power supply device 2 associated with the checkpoint is the ground power supply device 2 installed in the electrified road section where the vehicle 3 that has passed through the checkpoint may travel. In the server storage unit 12 of the server 1 according to this embodiment, the ground power supply device 2 associated with each checkpoint is stored in advance for each checkpoint.

[0073] In step S8, the vehicle controller 34 decrypts the received first ticket using the encryption key, starts periodic and direct transmission of the decrypted first ticket to the ground power supply device 2 via narrowband wireless communication through the vehicle-side communication device 72, and controls the power receiving device 5 so that power can be received when the own vehicle 3 travels over the ground power supply device 2.

[0074] In step S9, when the power transmission controller 22 of the ground power supply device 2 receives the first ticket at a predetermined communication strength (received signal strength) or higher, it determines whether it has already received the second ticket corresponding to the received first ticket from the server 1, that is, whether it holds the second ticket corresponding to the received first ticket. If the power transmission controller 22 holds the second ticket corresponding to the first ticket, it proceeds to the process of step S10. On the other hand, if the ground power supply device 2 does not hold the second ticket corresponding to the first ticket, it proceeds to the process of step S11.

[0075] In step S10, the power transmission controller 22 of the ground power supply device 2 determines that the vehicle 3 that is about to travel or park on its own device requests non-contact power supply and has obtained the system use permission of the non-contact power supply system 100 (hereinafter referred to as the "power supply target vehicle"), and controls the power transmission device 4 so that power can be transmitted when the vehicle 3 travels or parks on its own device.

[0076] In step S11, when the power transmission controller 22 of the ground power supply device 2 transmits power to the vehicle 3 that has traveled or parked on its own device, it deletes the second ticket corresponding to the first ticket received from the vehicle 3 from the storage unit 222.

[0077] In step S12, the power transmission controller 22 of the ground power supply device 2 determines that the vehicle 3 that is about to travel or park on its own device is not a power supply target vehicle, and controls the power transmission device 4 so that no power is transmitted even if the vehicle 3 travels or parks on its own device.

[0078] Thus, in this embodiment, in the in-road power supply device 2, in order to enable the server 1 to confirm whether the vehicle 3 approaching the device itself is a power supply target vehicle, the server 1 transmits a first ticket to the power supply target vehicle and transmits a second ticket corresponding to the first ticket (identification information for the in-road power supply device 2 to identify whether the vehicle 3 approaching the device itself is a power supply target vehicle) to the in-road power supply device 2 where the power supply target vehicle may travel.

[0079] Then, the in-road power supply device 2 stores the second ticket received from the server 1 in the storage unit 222 of the power transmission controller 22. If the second ticket stored in the storage unit 222 matches the first ticket received from the vehicle 3 approaching the device itself, it is determined that the vehicle 3 is a power supply target vehicle, and non-contact power supply is implemented. At the same time, the second ticket corresponding to the first ticket received from the vehicle 3 is deleted from the storage unit 222.

[0080] That is, in this embodiment, since the second ticket is transmitted to each in-road power supply device 2 where the power supply target vehicle may travel, the second ticket may be transmitted to the in-road power supply device 2 installed in the electrified road section where the power supply target vehicle did not actually travel. In this case, the second ticket stored in the storage unit 222 of the power transmission controller 22 of the in-road power supply device 2 remains stored in the storage unit 222 without being deleted. Therefore, for example, to prevent electrical theft (power theft) by a third party who forges the first ticket and to suppress the storage capacity of the storage unit 222, it is necessary to delete the second ticket stored in the storage unit 222 from the storage unit 222 at an appropriate timing.

[0081] Therefore, in the present embodiment, among the second tickets stored in the storage unit 222 of the power transmission controller 22 of the ground power supply device 2, if there is a second ticket whose elapsed time since reception from the server 1 (hereinafter referred to as "ticket storage time") is equal to or longer than a predetermined ticket deletion time, the second ticket is deleted from the storage unit 222. And the ticket deletion time can be set to an appropriate time according to the road conditions.

[0082] Hereinafter, with reference to the flowchart of FIG. 6, the deletion process of the second ticket according to this embodiment implemented by the power transmission controller 22 will be described. The power transmission controller 22 repeatedly executes this routine at a predetermined calculation cycle.

[0083] In step S101, the power transmission controller 22 of the ground power supply device 2 grasps the road conditions such as the congestion degree of the electrified road section where the own device is installed.

[0084] The road conditions of the electrified road section where the own device is installed can be grasped, for example, by communicating with an external road traffic information center via the ground-side communication device 71 and acquiring at least one parameter necessary to grasp the road conditions of the electrified road section where the own device is installed from the road traffic information center. Examples of such parameters include, for example, the traffic volume, traffic jam length, average vehicle speed, and average section passing time of the electrified road section where the own device is installed.

[0085] In step S102, the power transmission controller 22 of the ground power supply device 2 sets the ticket deletion time based on the road conditions of the electrified road section where the own device is installed.

[0086] In this embodiment, the power transmission controller 22 determines the degree of congestion in the electrified road section where the device is installed based on the road conditions of the electrified road section, and increases the ticket deletion time as the degree of congestion in the electrified road section increases. This is because the required time from the checkpoint to the device itself becomes longer as the degree of congestion in the electrified road section where the device is installed increases. Basically, the degree of congestion in the electrified road section increases as the traffic volume increases, the traffic jam duration becomes longer, the vehicle speed decreases, and the average section passing time becomes longer.

[0087] In step S103, the power transmission controller 22 of the on-ground power supply device 2 checks whether there is a second ticket among the second tickets stored in the storage unit 222 whose ticket storage time is equal to or longer than the ticket deletion time. If there is a second ticket whose ticket storage time is equal to or longer than the ticket deletion time, the second ticket is deleted from the storage unit 222.

[0088] The on-ground power supply device 2 according to the present embodiment described above includes an on-ground communication device 71 (communication device) capable of communicating with each of the server 1 and the vehicle 3 (mobile body), and a storage unit 222 (storage device). When the second ticket (identification information of the mobile body) received from the server 1 and stored in the storage unit 222 matches the first ticket (identification information of the mobile body) received from the vehicle 3, it is configured to perform non-contact power supply to the vehicle 3, and a power transmission controller 22 (control device). And the power transmission controller 22 is configured to change the timing for deleting the second ticket received from the server 1 and stored in the storage unit 222 from the storage unit 222 based on the road conditions around the road where the on-ground power supply device 2 is installed.

[0089] As a result, even if the on-ground power supply device 2 receives a second ticket from the server 1 for identifying a vehicle 3 that did not drive over the device itself, the second ticket can be deleted from the storage unit 222 of the device at an appropriate timing based on the road conditions around the road where the device is installed.

[0090] In particular, in the present embodiment, when the ticket storage time, which is the elapsed time since the power transmission controller 22 received the second ticket from the server 1, becomes equal to or longer than a predetermined ticket deletion time, the power transmission controller 22 deletes the second ticket received from the server 1 and stored in the storage unit 222, and is configured to change the ticket deletion time based on the road conditions around the road where the ground power supply device 2 is installed. Specifically, the power transmission controller 22 is configured to extend the ticket deletion time when the congestion level of the road where the ground power supply device 2 is installed is high compared to when it is low, and to determine the congestion level of the road where the ground power supply device 2 is installed based on at least one parameter among the traffic volume, traffic jam length, average vehicle speed, and average vehicle passing time of the road.

[0091] Thereby, it can be deleted from the storage unit 222 of the own device at an appropriate timing according to the current road conditions around the road where the ground power supply device 2 is installed.

[0092] Also, in the present embodiment, by a computer program for a computer that controls the ground power supply device 2 including a ground-side communication device 71 (communication device) capable of communicating with each of the server 1 and the vehicle 3 (mobile body), and a storage unit 222 (storage device), when the second ticket (identification information of the mobile body) received from the server 1 and stored in the storage unit 222 matches the first ticket (identification information of the mobile body) received from the vehicle 3, the ground power supply device 2 is made to perform non-contact power supply to the vehicle 3, and based on the road conditions around the road where the ground power supply device 2 is installed, the timing for deleting the second ticket received from the server 1 and stored in the storage unit 222 from the storage unit 222 is changed.

[0093] Thereby, even if the ground power supply device 2 receives the second ticket for identifying the vehicle 3 that did not actually drive over the own device from the server 1, the ground power supply device 2 can cause the received second ticket to be deleted from the storage unit 222 of the own device at an appropriate timing based on the road conditions around the road where the own device is installed.

[0094] (Second Embodiment) Next, a second embodiment of the present invention will be described. This embodiment is different from the first embodiment in that the ticket deletion time is set based on the statistical data of the time required from the checkpoint of each vehicle 3 to the ground power supply device. Hereinafter, the differences will be mainly described.

[0095] FIG. 7 is a flowchart for explaining the deletion process of the second ticket according to this embodiment. The power transmission controller 22 repeatedly executes this routine at a predetermined calculation cycle. In FIG. 7, since the content of the process in step S103 is the same as that in the first embodiment, the description thereof will be omitted here.

[0096] In step S201, when the power transmission controller 22 of the ground power supply device 2 performs power transmission to the vehicle 3 that has traveled above the own device, the second ticket used to confirm whether the vehicle 3 is a power supply target vehicle is received from the server 1, and the time required until power transmission is performed, that is, the time required for the vehicle 3 for which power transmission has been performed to reach the own device from the checkpoint, is calculated and stored in the storage unit 222. Thus, in this embodiment, every time power transmission is performed on the vehicle 3, the time required for the vehicle 3 to reach the own device from the checkpoint is acquired and stored in the storage unit 222 of the power transmission controller 22.

[0097] In step S202, the power transmission controller 22 of the ground power supply device 2 calculates statistical data of the time required from the checkpoint of each vehicle 3 to the own device that has been acquired so far. The statistical data can be, for example, the average value, median value, or mode value of the time required from the checkpoint of each vehicle 3 to the own device, but is not limited thereto.

[0098] In step S203, the power transmission controller 22 of the ground power supply device 2 sets the ticket deletion time based on the statistical data of the time required from the checkpoint to the own device. In this embodiment, the power transmission controller sets the ticket deletion time by multiplying the statistical data by a predetermined coefficient greater than 1.

[0099] Each time the power transmission controller 22 (control device) according to the present embodiment described above performs non-contact power supply to the vehicle 3 (moving body), it calculates the required time from receiving the second ticket (identification information of the moving body) from the server 1 until performing non-contact power supply to the vehicle 3, and stores it in the storage unit 222 (storage device), and is configured to change the ticket deletion time based on the statistical data of the required time obtained from a plurality of data of the required time stored in the storage unit 222.

[0100] As a result, even if the in-road power supply device 2 according to the present embodiment cannot obtain external information regarding the road conditions of the electrified road section where the self-device is installed from an external road traffic information center as in the first embodiment, the second ticket can be deleted from the storage unit 222 of the self-device at an appropriate timing based on the road conditions around the road where the self-device was installed in the past.

[0101] (Third Embodiment) Next, a third embodiment of the present invention will be described. This embodiment differs from the above-described embodiments in that the second ticket is deleted based on the traveling locus of each vehicle 3. Hereinafter, the differences will be mainly described.

[0102] FIG. 8 is a flowchart for explaining the deletion process of the second ticket according to the present embodiment. The power transmission controller 22 repeatedly executes this routine at a predetermined calculation cycle.

[0103] In step S301, the power transmission controller 22 of the in-road power supply device 2 determines whether or not it has received the second ticket from the server 1. If the power transmission controller 22 has received the second ticket from the server 1, it proceeds to the process of step S302. On the other hand, if the power transmission controller 22 has not received the second ticket from the server 1, the current process ends.

[0104] In step S302, the power transmission controller 22 of the ground power supply device 2 inquires the server 1 about the position information of the vehicle 3 that holds the first ticket corresponding to the received second ticket. In this embodiment, it is assumed that the vehicle 3 periodically transmits the position information of its own vehicle to the server 1 when passing through the checkpoint.

[0105] In step S303, when the power transmission controller 22 of the ground power supply device 2 receives the position information of the vehicle 3 that holds the first ticket corresponding to the second ticket from the server 1, it calculates the travel trajectory of the vehicle 3 based on the position information of the vehicle 3 received so far.

[0106] In step S304, the power transmission controller 22 of the ground power supply device 2 determines whether the vehicle 3 is no longer likely to travel over its own device based on the travel trajectory of the vehicle 3 calculated in step S303.

[0107] When the power transmission controller 22 determines that the vehicle 3 is not likely to travel over its own device, it proceeds to the process of step S305. On the other hand, when the power transmission controller 22 determines that the vehicle 3 is likely to travel over its own device, after a predetermined time has elapsed, it returns to the process of step S302.

[0108] As an example of a case where it can be determined that the vehicle 3 is not likely to travel over its own device, for example, as shown in FIG. 9, when there is a T-junction in the electrified road section after passing through the checkpoint, the power transmission controller 22 of each ground power supply device 2 arranged on the left side in the figure of the T-junction can determine that the vehicle 3 has turned right based on the travel trajectory (that is, when it can be determined that the vehicle 3 is traveling in a direction away from its own device), it can be determined that the vehicle 3 is not likely to travel over its own device. Also, when the power transmission controller 22 can determine based on the travel trajectory that the vehicle 3 is traveling in the opposite lane whose traveling direction is opposite to the lane where its own device is installed, it can also be determined that the vehicle 3 is not likely to travel over its own device.

[0109] In step S305, the power transmission controller 22 of the in-ground power supply device 2 deletes the second ticket corresponding to the vehicle 3 that has lost the possibility of traveling above the own device from among the second tickets stored in the storage unit 222.

[0110] According to the present embodiment described above, when the power transmission controller 22 (control device) determines based on the traveling locus of the vehicle 3 (moving body) that the vehicle 3 has lost the possibility of traveling on the road where the in-ground power supply device 2 is installed, the second ticket (identification information of the moving body) received from the server 1 and stored in the storage unit 222 (storage device) is configured to be deleted.

[0111] Specifically, when the power transmission controller 22 can confirm based on the traveling locus of the vehicle 3 that the vehicle 3 is traveling in a direction away from the in-ground power supply device 2, the power transmission controller 22 is configured to determine that the vehicle 3 has lost the possibility of traveling on the road where the in-ground power supply device 2 is installed. Also, when the power transmission controller 22 can confirm based on the traveling locus of the vehicle 3 that the vehicle 3 is traveling in the oncoming lane in the direction opposite to the lane where the in-ground power supply device 2 is installed, the power transmission controller 22 is configured to determine that the vehicle 3 has lost the possibility of traveling on the road where the in-ground power supply device 2 is installed.

[0112] As a result, even if the in-ground power supply device 2 receives the second ticket for identifying the vehicle 3 that has not traveled above the own device from the server 1, the in-ground power supply device 2 can delete the second ticket from the storage unit 222 of the own device at an appropriate timing based on the traveling locus of the vehicle 3.

[0113] Although the embodiments of the present invention have been described above, the above embodiments merely show a part of the application examples of the present invention, and are not intended to limit the technical scope of the present invention to the specific configurations of the above embodiments.

[0114] For example, in the above-described first embodiment, the ground power feeding device 2 grasped the current road conditions based on external information obtained by communicating with an external road traffic information center. However, the present invention is not limited to this. For example, based on the time during which power transmission is performed to the power feeding target vehicle, the passing speed of the power feeding target vehicle may be calculated, and the current road conditions may be determined. In this case, it can be determined that the higher the degree of congestion, the slower the passing speed.

[0115] Further, in the above-described third embodiment, the ground power feeding device 2 calculated the traveling locus of the vehicle 3. However, the traveling locus of the vehicle 3 may be calculated by the server 1, and the calculated traveling locus of the vehicle 3 may be transmitted to the ground power feeding device 2.

[0116] Further, in each of the above-described embodiments, as shown in FIG. 10, the ground power feeding device 2 may include a plurality of power transmission devices 4 controlled by, for example, one power transmission controller 22.

[0117] Further, in each of the above-described embodiments, when the storage capacity of the storage unit 222 of the ground power feeding device 2 reaches a predetermined capacity or more, the second tickets with old reception dates received from the server 1 may be sequentially deleted.

[0118] Further, in each of the above-described embodiments, the ground power feeding device 2 deletes the second ticket corresponding to the vehicle 3 from the storage unit 222 at the timing when power was transmitted to the vehicle 3 that traveled above the own device, the timing when the ticket storage time of the second ticket corresponding to the vehicle 3 becomes equal to or longer than the ticket deletion time, or the timing when it is determined from the traveling locus of the vehicle 3 that the vehicle 3 has no possibility of traveling above the own device. However, even if the second ticket stored in the storage unit 222 matches the first ticket received from the vehicle 3 at these timings, the validity of the second ticket corresponding to the vehicle 3 may be invalidated so as not to perform non-contact power feeding to the vehicle 3, or the second ticket may not be immediately deleted but may be deleted after executing a predetermined process.

[0119] As a predetermined process, even if the second ticket stored in the storage unit 222 matches the first ticket received from the vehicle 3, an invalidation process can be executed to invalidate the validity of the second ticket corresponding to the vehicle 3 at the timing described above in order not to perform non-contact power feeding to the vehicle 3.

[0120] Also, as a predetermined process, after performing the invalidation process, information regarding the erased second ticket (when erased at the first timing among the three timings described above, it is the identification information of the vehicle 3 that has traveled above the own device, and when erased at the remaining two timings, it is the identification information of the vehicle 3 that has not traveled above the own device) can be transmitted to the server 1. The server 1 can use the information regarding the erased second ticket received from the ground power feeding device 2 to identify, for example, the vehicle 3 that has used the ground power feeding device 2 and use it for calculating the usage fee.

[0121] Note that the period from invalidating the validity of the second ticket until erasing it is not particularly limited. For example, as the period until the storage capacity reaches a predetermined capacity or more, after invalidating the validity of the second ticket corresponding to the vehicle 3 received from the server 1 and stored in the storage unit 222 at the timing described above, the invalidated second ticket can be erased at any time when the storage capacity reaches a predetermined capacity or more. Also, the period from invalidating the validity of the second ticket until erasing it may be the period until the transmission process is executed, or may be a predetermined fixed period.

[0122] In this way, each of the above embodiments may be modified so as to change the timing for invalidating the second ticket received from the server 1 and stored in the storage unit 222 based on the road conditions around the road where the ground power supply device 2 is installed or the travel locus of the vehicle 3. Further, when the elapsed time (ticket storage time) since receiving the second ticket from the server 1 becomes equal to or longer than a predetermined ticket deletion time, or when there is no possibility that the vehicle 3 will travel on the road where the ground power supply device 2 is installed based on the travel locus of the vehicle 3, the second ticket stored in the storage unit 222 may be deleted after performing a predetermined process.

[0123] Also, each of the above embodiments can be freely combined as appropriate.

[0124] Also, when viewed from a different perspective, the above embodiments can be understood as a control method for the ground power supply device 2 including a ground-side communication device 71 (communication device) capable of communicating with each of the server 1 and the vehicle 3 (mobile body), and a storage unit 222 (storage device). When the second ticket (identification information of the mobile body) received from the server 1 and stored in the storage unit 222 matches the first ticket (identification information of the mobile body) received from the vehicle 3, non-contact power supply is performed on the vehicle 3, and based on the road conditions around the road where the ground power supply device 2 is installed, the timing for deleting the second ticket received from the server 1 and stored in the storage unit 222 from the storage unit 222 is changed.

[0125] 1 Server 2 Ground power supply device 3 Vehicle (mobile body) 11 Server communication unit (communication unit) 13 Server processing unit (processing unit) 100 Non-contact power supply system

Claims

1. A communication device capable of communicating with each of a server and a mobile body, having a storage device, and configured to perform contactless power supply to the mobile body when the identification information of the mobile body received from the server and stored in the storage device matches the identification information of the mobile body received from the mobile body; A ground power supply device comprising: The control device is configured to change the timing of erasing the identification information of the mobile body received from the server and stored in the storage device from the storage device, or the timing of invalidating the validity of the identification information of the mobile body received from the server and stored in the storage device, based on the road conditions around the road where the ground power supply device is installed or the travel trajectory of the mobile body; A ground power supply device.

2. The control device is configured to erase the identification information of the mobile body received from the server and stored in the storage device or invalidate its validity when the elapsed time since receiving the identification information of the mobile body from the server reaches a predetermined time or more, and configured to change the predetermined time based on the current or past road conditions around the road where the ground power supply device is installed. The ground power supply device according to claim 1.

3. The control device is configured to make the predetermined time longer when the degree of congestion of the road where the ground power supply device is installed is high than when it is low. The ground power supply device according to claim 2.

4. The control device is configured to determine the degree of congestion of the road where the ground power supply device is installed based on at least one parameter of the traffic volume, traffic jam length, average vehicle speed, and average vehicle passing time of the road. The ground power supply device according to claim 3.

5. Each time the control device performs non-contact power supply to the moving body, it calculates the required time from receiving the identification information of the moving body from the server until performing non-contact power supply to the moving body, and stores the calculated time in the storage device. The control device is configured to change the predetermined time based on statistical data of the required time obtained from a plurality of pieces of data of the required time stored in the storage device. The in-ground power supply device according to claim 2.

6. When the control device determines, based on the travel locus of the moving body, that there is no possibility that the moving body will travel on the road where the in-ground power supply device is installed, the control device is configured to delete the identification information of the moving body received from the server and stored in the storage device, or invalidate the validity of the identification information of the moving body received from the server and stored in the storage device. The in-ground power supply device according to claim 1.

7. When the control device confirms, based on the travel locus of the moving body, that the moving body is traveling in a direction away from the in-ground power supply device, the control device is configured to determine that there is no possibility that the moving body will travel on the road where the in-ground power supply device is installed. The in-ground power supply device according to claim 6.

8. When the control device confirms, based on the travel locus of the moving body, that the moving body is traveling in the opposite lane whose traveling direction is opposite to that of the lane where the in-ground power supply device is installed, the control device is configured to determine that there is no possibility that the moving body will travel on the road where the in-ground power supply device is installed. The in-ground power supply device according to claim 6 or claim 7.

9. The control device calculates or acquires the travel locus of the moving body based on the position information of the moving body received from the server. ​ The in-ground power supply device according to claim 1, claim 6, claim 7, or claim 8.

10. The control device When the elapsed time since receiving the identification information of the moving body from the server is equal to or longer than a predetermined time, or when it is determined based on the travel locus of the moving body that there is no possibility that the moving body will travel on the road where the in-ground power supply device is installed, after performing a predetermined process, the identification information of the moving body stored in the storage device is erased. The predetermined process includes an invalidation process of invalidating the validity of the identification information of the moving body stored in the storage device so that non-contact power supply is not performed on the moving body even if the identification information of the moving body stored in the storage device matches the identification information of the moving body received from the moving body. The in-ground power supply device according to claim 1.

11. The predetermined process further includes a transmission process of transmitting the invalidated identification information of the moving body to the server after the invalidation process. The in-ground power supply device according to claim 10.

12. A server, A moving body, An in-ground power supply device having a storage device, configured to be communicable with each of the server and the moving body, and configured to perform non-contact power supply to the moving body, A non-contact power supply system including: The in-ground power supply device When the identification information of the moving body received from the server and stored in the storage device matches the identification information of the moving body received from the moving body, non-contact power supply is performed on the moving body. Based on the road conditions around the road where the above-ground power supply device is installed or the travel trajectory of the moving body, change the timing of deleting the identification information of the moving body received from the server and stored in the storage device from the storage device, or change the timing of invalidating the validity of the identification information of the moving body received from the server and stored in the storage device. Non-contact power supply system.

13. A communication device capable of communicating with each of the server and the moving body, A storage device, A control method for an above-ground power supply device comprising: When the identification information of the moving body received from the server and stored in the storage device matches the identification information of the moving body received from the moving body, perform non-contact power supply to the moving body. Based on the road conditions around the road where the above-ground power supply device is installed or the travel trajectory of the moving body, change the timing of deleting the identification information of the moving body received from the server and stored in the storage device from the storage device, or change the timing of invalidating the validity of the identification information of the moving body received from the server and stored in the storage device. A control method for an above-ground power supply device.

14. A communication device capable of communicating with each of the server and the moving body, A storage device, A computer program for a computer that controls an above-ground power supply device comprising: In the above-ground power supply device, When the identification information of the moving body received from the server and stored in the storage device matches the identification information of the moving body separately received from the moving body, cause non-contact power supply to be performed on the moving body. Based on the road conditions around the road where the above-ground power supply device is installed or the travel trajectory of the moving body, cause the timing of deleting the identification information of the moving body received from the server and stored in the storage device from the storage device, or the timing of invalidating the validity of the identification information of the moving body received from the server and stored in the storage device to be changed. A computer program for causing

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