JP2020127312A - Vehicle power feeding system, in-vehicle communication device, server device, computer program, server program, and notification method - Google Patents

Abstract

To provide a vehicle power feeding system for performing a notification relating to power feeding from a power feeding device to a vehicle, an in-vehicle communication device, a server device, a computer program, a server program, and a notification method.SOLUTION: A vehicle power feeding system according to this embodiment has: an in-vehicle communication device communicating with a power feeding device performing power feeding to a vehicle; and a server device communicating with the in-vehicle communication device. The in-vehicle communication device has a power feeding determination section determining whether processing relating to the power feeding from the power feeding device to the vehicle is success or failure, and a transmission processing section performing processing of transmitting a determination result of the power feeding determination section to the server device, and the server device has a storage section storing the determination result transmitted from the in-vehicle communication device, a failure factor determination section determining whether a factor of failure of processing relating to the power feeding is the power feeding device or the vehicle based on the determination result stored in the storage section, and a notification section notifying the vehicle of the determination result of the failure factor determination section.SELECTED DRAWING: Figure 1

Description

The present invention relates to a vehicle power feeding system, a vehicle-mounted communication device, a server device, a computer program, a server program, and a notification method for making a notification regarding power feeding from a power feeding device to a vehicle.

Plug-in hybrid vehicles that use both an electric motor and an engine, and electric vehicles that are not equipped with an engine and that are driven by an electric motor are becoming popular. Vehicles such as plug-in hybrid vehicles and electric vehicles are equipped with a battery for storing electric power for driving an electric motor, and power supply to the battery is performed by an external power supply device. Various information exchanges are performed between the power supply device and the vehicle when power is supplied. In recent years, a wireless power feeding system has been developed in which power is fed in a contactless manner without connecting a power feeding device to a vehicle with a power feeding cable. In the wireless power feeding system, since the charging device and the vehicle are not connected via the power feeding cable, various information necessary for power feeding is exchanged between the power feeding device and the vehicle by wireless communication.

Patent Document 1 proposes a wireless power supply device for a vehicle, which aims to correctly guide the vehicle to a target stop position where the power receiving coil of the vehicle is close to the power transmitting coil of the parking lot. The vehicle wireless power supply device includes a plurality of light emitting units arranged corresponding to the wheel stop regions. The wireless power supply device for a vehicle detects a wheel interval in the width direction of a vehicle that is a power supply target, and controls some light emitting units and other light emitting units to emit light in mutually different states according to the detection result.

JP, 2011-106216, A

For example, the power supply process from the power supply device to the vehicle may fail due to some device failure. In such a case, the vehicle user needs to take some measures and retry the power feeding. However, if the cause of the power supply failure is unknown, it is difficult for the user to take measures against the power supply failure, it is difficult to retry the power supply, and it is difficult to make this retry successful.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a vehicle power feeding system, a vehicle-mounted communication device, a server device, and a computer for giving a notification regarding power feeding from a power feeding device to a vehicle. It is to provide a program, a server program, and a notification method.

A vehicle power supply system according to this aspect includes an in-vehicle communication device that communicates with a power supply device that supplies power to a vehicle, and a server device that communicates with the in-vehicle communication device. A power supply determination unit that determines success or failure of a process related to power supply from the power supply device to the vehicle, and a transmission processing unit that performs a process of transmitting a determination result of the power supply determination unit to the server device, The server device stores a determination result transmitted from the vehicle-mounted communication device, and based on the determination result stored in the storage unit, the cause of the processing failure related to power supply is the power supply device or the vehicle. The failure factor determination unit that determines which of the above is included, and the notification unit that notifies the vehicle of the determination result of the failure factor determination unit.

Note that the present application can be realized not only as an in-vehicle communication device or a server device including such a characteristic processing unit, but also as a notification method having such characteristic processing as a step, or such a step as a computer. Can be realized as a computer program or a server program to be executed by. Further, it can be realized as a semiconductor integrated circuit that realizes a part or all of the in-vehicle communication device or the server device, or can be realized as another device or system including the in-vehicle communication device or the server device.

Based on the above, it is possible to notify information regarding power feeding from the power feeding device to the vehicle.

It is a schematic diagram for explaining an outline of a vehicle power feeding system according to the present embodiment. It is a schematic diagram for explaining the configuration of the vehicle-mounted system according to the present embodiment. FIG. 3 is a block diagram showing a configuration of a charging communication ECU according to the present embodiment. It is a block diagram which shows the structure of the server apparatus for vehicles which concerns on this Embodiment. It is a schematic diagram which shows an example of electric power feeding success/failure DB. It is a schematic diagram for explaining a failure factor determination process performed by the vehicle server device. It is a schematic diagram for explaining a failure factor determination process performed by the vehicle server device. It is a flow chart for explaining the procedure of the electric power feeding process performed between the charging communication ECU and the electric power feeding device. It is a schematic diagram for explaining a failure factor determination process performed by the vehicle server device. It is a schematic diagram for explaining the procedure of a notification process regarding power feeding performed in the vehicle power feeding system according to the present embodiment. It is a schematic diagram for explaining the procedure of a notification process regarding power feeding performed in the vehicle power feeding system according to the present embodiment. 5 is a flowchart showing a procedure of notification processing performed by the charging communication ECU according to the present embodiment. It is a flowchart which shows the procedure of the transmission process of the notification message which the server apparatus for vehicles which concerns on this Embodiment performs. It is a flowchart which shows the procedure of the transmission process of the notification message which the server apparatus for vehicles which concerns on this Embodiment performs.

[Description of Embodiments of the Present Invention]
First, embodiments of the present invention will be listed and described. Further, at least a part of the embodiments described below may be arbitrarily combined.

(1) A vehicle power supply system according to this aspect includes an in-vehicle communication device that communicates with a power supply device that supplies power to a vehicle, and a server device that communicates with the in-vehicle communication device. The communication device includes a power supply determination unit that determines success or failure of a process related to power supply from the power supply device to the vehicle, and a transmission processing unit that performs a process of transmitting a determination result of the power supply determination unit to the server device. The server device includes a storage unit that stores a determination result transmitted from the in-vehicle communication device, and a factor of a process failure related to power supply is based on the determination result stored in the storage unit. Alternatively, the vehicle has a failure factor determination unit that determines which of the vehicles, and a notification unit that notifies the vehicle of the determination result of the failure factor determination unit.

In this aspect, the vehicle-mounted communication device mounted on the vehicle communicates with the power supply device and also communicates with the server device. The in-vehicle communication device determines whether or not the process related to the power feeding from the power feeding device to the vehicle is successful (successful or unsuccessful), and transmits the determination result to the server device. The server device receives the determination result from the vehicle-mounted communication device and stores it in the storage unit. This allows the server device to store information regarding the success or failure of the power supply process regarding the plurality of vehicles and the plurality of power supply devices. The server device determines, based on the stored information, whether the cause of the power feeding process failure is the power feeding device or the vehicle, and notifies the vehicle of the determination result. Thus, when the vehicle power supply fails, the vehicle user can know whether the failure factor is in the power supply device or the vehicle.

(2) The transmission processing unit identifies, together with the determination result of the power supply determination unit, information for identifying a vehicle in which the in-vehicle communication device is mounted, and a power supply device that has performed the process related to the power supply. Is preferably transmitted to the server device.

In the present aspect, the vehicle-mounted communication is provided with the determination result of the success or failure of the power supply process, the information for identifying the vehicle in which the in-vehicle communication device is mounted, and the information for identifying the power supply device that performed the power supply process. Send from the device to the server device. As a result, the server device that has received the information from the in-vehicle communication device can collect the information regarding the success or failure of the power supply process for each vehicle or each power supply device and determine the failure factor.

(3) The storage unit stores the determination result of the power supply determination unit, the information for identifying the vehicle and the information for identifying the power supply device in association with each other, and the failure factor determination unit is configured to supply power. With respect to the power supply device and the vehicle that have failed in the process, it is preferable to determine a factor of failure based on a history of information stored in the storage unit.

In the present aspect, the server device associates the determination result received from the in-vehicle communication device, the information for identifying the vehicle, and the information for identifying the power supply device with each other, and stores them in the storage unit. The server device determines the factor of failure of the power supply device and the vehicle for which the power supply process has failed, based on the history of information stored in the storage unit. For example, if the power supply device has failed in power supply processing with a plurality of vehicles, this power supply device may be a cause of failure. Further, for example, when the vehicle has failed in the power supply process with the plurality of power supply devices, the vehicle may be a cause of the failure. By determining the factor of failure based on the history of the stored information, the server device can accurately determine the factor of failure of the power feeding process.

(4) The process related to the power supply includes a plurality of processes performed in a predetermined order, and the in-vehicle communication device determines the plurality of processes when the power supply determination unit determines that the process related to the power supply has failed. It is preferable that the transmission processing unit has a specifying unit that specifies in which of the processes the process fails, and the transmission processing unit transmits information related to the process specified by the specifying unit.

In this aspect, the power supply process performed between the power supply device and the vehicle includes a plurality of processes performed in a predetermined order. When the power supply process fails, the in-vehicle communication device specifies which of the plurality of processes included in the power supply process has failed, and transmits information regarding the specified process to the server device. With this, the server device can know which of a plurality of processes included in the power supply process has failed, and can accurately determine the cause of the power supply process failure.

(5) It is preferable that the server device has a second notification unit that notifies the administrator of the power supply device when the failure factor determination unit determines that the failure factor is the power supply device.

In this aspect, when it is determined that the cause of the power supply process failure is the power supply device, the server device notifies the administrator of the power supply device. As a result, it is possible to notify the administrator of information regarding the power supply device in which a failure or the like may have occurred, and to prompt repair of the power supply device.

(6) The in-vehicle communication device according to the present aspect is an in-vehicle communication device that communicates with a power supply device that supplies power to a vehicle, and determines whether success or failure of processing related to power supply from the power supply device to the vehicle. A power supply determination unit for determining and a transmission processing unit for performing a process of transmitting the determination result of the power supply determination unit to the server device.

In this aspect, as in the aspect (1), the in-vehicle communication device transmits the determination result of the success or failure of the power feeding process to the server device, so that the server device causes the failure of the power feeding process to occur in the power feeding device or the vehicle. It is possible to determine which is the result of the determination and notify the vehicle of the determination result. Therefore, when the vehicle power supply fails, the user of the vehicle knows whether the cause of the failure is the power supply device or the vehicle. be able to.

(7) The transmission processing unit identifies, together with the determination result of the power supply determination unit, information for identifying a vehicle in which the in-vehicle communication device is mounted, and a power supply device that has performed the process related to the power supply. Is preferably transmitted to the server device.

In this aspect, similarly to the aspect (2), the server device that receives the information from the in-vehicle communication device collects the information regarding the success or failure of the power feeding process for each vehicle or each power feeding device to determine the failure factor. It can be carried out.

(8) The process related to the power supply includes a plurality of processes performed in a predetermined order, and when the power supply determination unit determines that the process related to the power supply has failed, any of the plurality of processes fails. It is preferable that the transmission processing unit includes a specifying unit that specifies whether or not the transmission is performed, and the transmission processing unit transmits information related to the process specified by the specifying unit.

In this aspect, similarly to the aspect (4), the server device that has received the information from the in-vehicle communication device can know in which of a plurality of processes included in the power feeding process the failure has occurred, and the power feeding can be performed. The cause of the processing failure can be accurately determined.

(9) A server device according to this aspect is a server device that communicates with an in-vehicle communication device mounted on a vehicle that receives power from the power supply device, and relates to power transmission transmitted from the in-vehicle communication device. Based on the storage unit that stores the determination result of processing success or failure and the determination result stored in the storage unit, it is determined whether the factor of the processing failure related to power supply is the power supply device or the vehicle And a notification unit that notifies the vehicle of the determination result of the failure factor determination unit.

In this aspect, similarly to the aspect (1), when the user of the vehicle fails to supply the power to the vehicle, it is possible to know whether the cause of the failure is the power supply device or the vehicle.

(10) The storage unit stores the determination result of success or failure of the process related to the power feeding, the information for identifying the vehicle and the information for identifying the power feeding device in association with each other, and determines the failure factor. It is preferable that the unit determines a factor of failure of the power supply device and the vehicle that have failed in a process related to power supply, based on a history of information stored in the storage unit.

In this aspect, the server device can accurately determine the cause of the failure of the power feeding process, as in the aspect (3).

(11) It is preferable that the failure factor determination unit includes a second notification unit that notifies the administrator of the power supply device when the failure factor is determined to be the power supply device.

In this aspect, similarly to the aspect (5), it is possible to notify the administrator of information regarding the power supply device in which a failure or the like may have occurred, and to prompt repair of the power supply device.

(12) The computer program according to this aspect determines whether the in-vehicle communication device that communicates with a power feeding device that feeds power to the vehicle succeeds or fails in processing related to power feeding from the power feeding device to the vehicle, A process of transmitting the determination result to the server device is performed.

In the present aspect, similarly to the aspect (6), the in-vehicle communication device transmits the determination result of the success or failure of the power feeding process to the server device, so that the server device causes the failure of the power feeding process to occur in the power feeding device or the vehicle. It is possible to determine which is the result of the determination and notify the vehicle of the determination result. Therefore, when the vehicle power supply fails, the user of the vehicle knows whether the cause of the failure is the power supply device or the vehicle. be able to.

(13) The server program according to the present aspect is configured to perform, on a server device that communicates with an in-vehicle communication device mounted in a vehicle that receives power from the power supply device, a process related to the power supply transmitted from the in-vehicle communication device. Storing the determination result of success or failure in the storage unit, based on the determination result stored in the storage unit, it is determined whether the factor of the process of power supply failure is the power supply device or the vehicle, A process of notifying the vehicle of the determination result is performed.

In this aspect, similarly to the aspect (9), when the user of the vehicle fails to feed the power to the vehicle, it is possible to know whether the cause of the failure lies in the power feeding device or the vehicle.

(14) The notification method according to the present aspect uses a vehicle-mounted communication device that communicates with a power supply device that supplies power to a vehicle, and determines success or failure of processing related to power supply from the power supply device to the vehicle. , The determination result transmitted to the server device, the server device stores the determination result transmitted from the vehicle-mounted communication device in the storage unit, and based on the determination result stored in the storage unit, It is determined whether the cause of the failure is the power supply device or the vehicle, and the determination result is notified to the vehicle.

In this aspect, similarly to the aspect (1), when the user of the vehicle fails to supply the power to the vehicle, it is possible to know whether the cause of the failure is the power supply device or the vehicle.

[Details of the embodiment of the present invention]
A specific example of the vehicle power feeding system according to the embodiment of the present invention will be described below with reference to the drawings. It should be noted that the present invention is not limited to these exemplifications, and is shown by the scope of the claims, and is intended to include meanings equivalent to the scope of the claims and all modifications within the scope.

<System overview>
FIG. 1 is a schematic diagram for explaining the outline of the vehicle power feeding system according to the present embodiment. The vehicle power feeding system according to the present embodiment is a system for wirelessly feeding power to a battery 2 mounted on a vehicle 1 such as an electric vehicle or a hybrid vehicle from a power feeding device 6 installed at a power feeding station or the like. .. The vehicle 1 is wirelessly transmitted from a charging control ECU (Electronic Control Unit) 3 that controls charging of the battery 2, a charging communication ECU 4 that wirelessly communicates with the power feeding device 6, and a power transmission coil 7 of the power feeding device 6. The power receiving coil 5 and the like for receiving electric power are mounted.

The power receiving coil 5 is arranged, for example, in the bottom portion of the vehicle 1. The charging communication ECU 4 transmits/receives information such as frequency, power amount, power feeding start timing, power feeding end timing, power transmission time, power feeding efficiency, and the like regarding power to be wirelessly transmitted to/from the power feeding device 6 by wireless communication. In addition, the charging communication ECU 4 may transmit/receive information for payment of a value for power supply, for example, information on a credit card of a driver of the vehicle 1 to/from the power supply device 6. The charging communication ECU 4 gives the information received from the power supply device 6 to the charging control ECU 3. In addition, the charging communication ECU 4 wirelessly transmits the information for transmission given from the charging control ECU 3 to the power supply device 6. For wireless communication performed between the charging communication ECU 4 and the power supply device 6, for example, a wireless LAN (Local Area Network) standard can be adopted.

The charging control ECU 3 performs a control process necessary for charging the battery 2 using the electric power received by the power receiving coil 5, based on the information obtained from the power feeding device 6 via the charging communication ECU 4. For example, the charging control ECU 3 controls the voltage value and the current value of the electric power supplied to the battery 2 for charging. Further, the charge control ECU 3 calculates the charging rate of the battery 2 and gives a command to stop power transmission to the power supply device 6 when the battery 2 reaches full charge. The wireless power supply between the vehicle 1 and the power supply device 6 is performed in accordance with the ISO15118 standard, for example.

The power supply device 6 is a device that is installed, for example, in a power supply station provided as a commercial facility along a road, or in a home parking lot of a user of the vehicle 1 to perform wireless power supply to the vehicle 1. The power supply device 6 is a device for wirelessly transmitting power to the vehicle 1 by, for example, an electromagnetic induction method or a magnetic resonance method. The power supply device 6 wirelessly transmits electric power from the power transmission coil 7 arranged in a predetermined space such as a road or a parking lot to the power reception coil 5 of the vehicle 1 parked in the predetermined space. At this time, it is preferable that the power transmitting coil 7 and the power receiving coil 5 are close to each other and face each other. When the power feeding device 6 has, for example, a sensor that detects the position of the vehicle 1 or the position of the power receiving coil 5, the power feeding device 6 may transmit information that notifies an appropriate positional relationship to the vehicle 1.

In the present embodiment, power supply device 6 is a device that has both the function of controlling wireless power supply to battery 2 of vehicle 1 and the function of performing wireless communication with charging communication ECU 4 of vehicle 1. However, the power supply device 6 may be a device realized by cooperation of a plurality of devices such as a device having a wireless power supply control function and a device having a wireless communication function. The vehicle 1 can perform wireless power feeding of the battery 2 using a plurality of different power feeding devices 6.

When the battery 2 of the vehicle 1 is supplied with electric power, for example, the user of the vehicle 1 selects any one of a plurality of reachable power supply stations or the like, and drives the vehicle 1 to the selected power supply station or the like. After reaching the power feeding station or the like, the user can park the vehicle 1 in a predetermined place and start wireless power feeding to the vehicle 1 from the power feeding device 6 installed in the power feeding station. At this time, various information exchanges are performed by wireless communication between the power feeding device 6 and the charging communication ECU 4 of the vehicle 1, and after the predetermined procedure processing is completed without any problems, wireless power feeding from the power feeding device 6 to the vehicle 1 is started. It

The vehicle power feeding system according to the present embodiment includes a vehicle server device 8 and a power feeding device server device 9. The vehicle 1 can communicate with the vehicle server device 8 via a wireless communication network such as a mobile phone communication network or a wireless LAN (Local Area Network). The vehicle server device 8 acquires and accumulates various information transmitted from the plurality of vehicles 1, and notifies the vehicle 1 based on the accumulated information. The power feeding device 6 can communicate with the power feeding device server device 9 via a communication network such as the Internet. The power feeding device server device 9 is a device that manages one or a plurality of power feeding devices 6, acquires and accumulates various information transmitted from the power feeding device 6, and controls the power feeding device 6 based on the accumulated information. And so on.

In the vehicle power feeding system according to the present embodiment, charging communication ECU 4 determines whether wireless power feeding from power feeding device 6 to battery 2 of vehicle 1 is successful (success/failure). The charging communication ECU 4 transmits to the vehicle server device 8 information related to the determination result of success or failure of wireless power supply. The vehicle server device 8 receives the information regarding the success or failure of wireless power feeding from the plurality of vehicles 1 and stores and stores the information in the database. The vehicle server device 8 uses the information stored in the database to notify the vehicle 1 that has failed in wireless power supply of the determination result as to whether the cause of the failure is the vehicle 1 or the power supply device 6.

FIG. 2 is a schematic diagram for explaining the configuration of the vehicle-mounted system according to the present embodiment. The vehicle 1 according to the present embodiment is equipped with devices such as a charging control ECU 3, a charging communication ECU 4, a wireless communication device 10 and an HMI (Human Machine Interface) 11, and these plural devices are CAN (Controller Area Network) and the like. Is communicably connected via the in-vehicle network. As described above, the charge control ECU 3 is a device that performs a control process required to charge the battery 2 with the electric power supplied from the power supply device 6. The charging communication ECU 4 is a device that performs wireless communication with the power supply device 6. In the present embodiment, charging communication ECU 4 cannot directly communicate with vehicle server device 8.

The wireless communication device 10 is a device that performs wireless communication using, for example, a mobile phone communication network or a wireless LAN. In the present embodiment, the wireless communication device 10 performs wireless communication with the vehicle server device 8. The charging communication ECU 4 and the wireless communication device 10 can communicate via an in-vehicle network, and the wireless communication device 10 relays communication between the charging communication ECU 4 and the vehicle server device 8. Thereby, the charging communication ECU 4 can communicate with the vehicle server device 8. However, for example, the charging communication ECU 4 may be configured to directly communicate with the vehicle server device 8, and for example, the charging communication ECU 4 may be connected to the vehicle via a communication device such as a mobile phone owned by a user of the vehicle 1. The charging communication ECU 4 may communicate with the vehicle server device 8 by a method other than the above.

The HMI 11 is a device that serves as a contact point between the in-vehicle system and the user of the vehicle 1, and includes a display unit for outputting a message or the like to the user and an operation unit for accepting the user's operation. The display unit of the HMI 11 is configured by using, for example, a liquid crystal display, and is arranged near the driver's seat of the vehicle 1. The operation unit of the HMI 11 is configured using, for example, a plurality of buttons or switches arranged around the display unit and a touch panel arranged on the surface of the display unit. The HMI 11 transmits the information regarding the user's operation received by the operation unit to another device via the in-vehicle network. Further, the HMI 11 displays various images and messages on the display unit based on a display command given via the in-vehicle network. The HMI 11 may be, for example, a car navigation device including a display unit and an operation unit.

<Device configuration>
FIG. 3 is a block diagram showing the configuration of charging communication ECU 4 according to the present embodiment. The charging communication ECU 4 according to the present embodiment is configured to include a processing unit (processor) 41, a storage unit (storage) 42, a wireless communication unit (transceiver) 43, an in-vehicle communication unit (transceiver) 44, and the like. The processing unit 41 is configured using an arithmetic processing device such as a CPU (Central Processing Unit) or an MPU (Micro-Processing Unit). The processing unit 41 reads the program 42a stored in the storage unit 42 and executes the program 42a to perform wireless communication with the power supply device 6, a process of determining success or failure of wireless power supply, and a determination result of success or failure. A process of transmitting information on the vehicle server device 8 is performed.

The storage unit 42 is configured by using a nonvolatile memory element such as a flash memory or an EEPROM (Electrically Erasable Programmable Read Only Memory). The storage unit 42 stores various programs executed by the processing unit 41 and various data necessary for the processing of the processing unit 41. In the present embodiment, the storage unit 42 stores the program 42a executed by the processing unit 41. It should be noted that the program 42a may be written in the storage unit 42, for example, at the manufacturing stage of the charging communication ECU 4, or may be acquired by the charging communication ECU 4 through communication, for example, what is distributed by a remote server device. The charging communication ECU 4 may read the program 42a recorded in the recording medium 99 such as a memory card or an optical disc and store it in the storage unit 42. For example, the program 42a recorded in the recording medium 99 may be read out by the writing device and charged. It may be written in the storage unit 42 of the communication ECU 4. The program 42a may be provided in the form of distribution via a network, or may be provided in the form recorded on the recording medium 99.

The wireless communication unit 43 performs wireless communication with the power supply device 6 in accordance with a wireless LAN communication protocol, for example. The wireless communication unit 43 can be configured using an IC (Integrated Circuit) of a wireless transceiver. The wireless communication unit 43 performs wireless transmission to the power supply device 6 by outputting a signal obtained by modulating the transmission data provided from the processing unit 41 to the antenna. Further, the wireless communication unit 43 provides the processing unit 41 with the data obtained by demodulating the signal received by the antenna.

The in-vehicle communication unit 44 performs wired communication according to the CAN communication protocol, for example. The in-vehicle communication unit 44 can be configured using an IC of a so-called CAN transceiver. The in-vehicle communication unit 44 is connected to other in-vehicle devices such as the charging control ECU 3, the wireless communication device 10 and the HMI 11 via a communication line such as a CAN bus arranged in the vehicle 1, and is connected to these other in-vehicle devices. The communication is performed in accordance with the CAN communication protocol. The in-vehicle communication unit 44 converts the data for transmission given from the processing unit 41 into an electric signal according to the CAN communication protocol and outputs the electric signal to the communication line, thereby transmitting the data to another vehicle-mounted device. Further, the in-vehicle communication unit 44 receives data from another in-vehicle device by sampling and acquiring the potential of the communication line, and gives the received data to the processing unit 41.

In the charging communication ECU 4 according to the present embodiment, the processing unit 41 reads out and executes the program 42a stored in the storage unit 42, so that the power feeding communication processing unit 41a, the power feeding determination processing unit 41b, and the determination result transmission processing unit. 41c, the specific processing unit 41d, and the like are implemented in the processing unit 41 as software-like functional blocks. The power feeding communication processing unit 41a performs a process of transmitting and receiving various information necessary for power feeding of the battery 2 of the vehicle 1 to and from the power feeding device 6. In addition, the power feeding communication processing unit 41a relays communication between the power feeding device 6 and the charging control ECU 3.

The power supply determination processing unit 41b determines whether the wireless power supply from the power supply device 6 to the battery 2 of the vehicle 1 has been successfully completed without any problem, or whether some problem has occurred in the middle and failed and interrupted. Perform processing. The power feeding determination processing unit 41b determines that the power feeding processing has succeeded when all the plurality of procedures defined in the power feeding processing are completed, and the power feeding processing fails when the processing is interrupted in the middle of the plurality of procedures for some reason. It can be determined that it did.

Note that the success or failure of the power supply processing by the power supply determination processing unit 41b may be performed for each of the plurality of procedures included in the power supply processing. Further, the power supply determination processing unit 41b may be configured to determine whether the power supply processing has succeeded or failed, or whether the power supply processing has succeeded or failed. Further, the power supply determination processing unit 41b may determine whether or not the power supply processing is successful by determining whether or not the power supply processing is interrupted. In addition, the interruption of the power supply process includes a stop of the process, an abnormal end, a forced end, a state in which the same process is repeated over a predetermined period, and the like.

The determination result transmission processing unit 41c performs a process of transmitting the determination result of the success or failure of wireless power feeding by the power feeding determination processing unit 41b to the vehicle server device 8 via the wireless communication device 10. At this time, the determination result transmission processing unit 41c transmits the vehicle identification information for identifying the vehicle 1 and the power supply device identification information for identifying the power supply device 6 to the vehicle server device 8 together with the determination result of the success or failure of wireless power supply. .. VIN (Vehicle Identification Number), for example, can be used as the vehicle identification information. The VIN may be stored in the charging communication ECU 4, or may be stored in another device in the vehicle 1 and may be acquired by the charging communication ECU 4 by in-vehicle communication. The power supply device identification information is information acquired by the charging communication ECU 4 performing wireless communication with the power supply device 6, and for example, the MAC (Media Access Control) address of the power supply device 6 can be used. Further, when the power supply process fails, the charging communication ECU 4 may automatically perform a process such as self-diagnosis, and the determination result transmission processing unit 41c may transmit the diagnosis result to the vehicle server device 8 together with the determination result. ..

The power feeding from the power feeding device 6 to the battery 2 of the vehicle 1 proceeds according to a predetermined procedure defined in the standard relating to wireless power feeding. When the power supply determination processing unit 41b determines that the wireless power supply has failed, the identification processing unit 41d performs a process of identifying up to which stage of the predetermined procedure has been completed and at which stage the process has been interrupted. The information about the interruption point of the predetermined procedure identified by the identification processing unit 41d is transmitted to the vehicle server device 8 by the determination result transmission processing unit 41c together with the determination result, the vehicle identification information, and the power supply device identification information.

FIG. 4 is a block diagram showing the configuration of vehicle server device 8 according to the present embodiment. The vehicle server device 8 according to the present embodiment is configured to include a processing unit (processor) 81, a storage unit (storage) 82, a communication unit (transceiver) 83, and the like. The processing unit 81 is configured using an arithmetic processing device such as a CPU or MPU. The processing unit 81 reads out and executes the server program 82a stored in the storage unit 82 to perform wireless communication with the charging communication ECU 4 of the vehicle 1, a process of wirelessly transmitting electric power to the vehicle 1, Also, a process of determining the cause of power supply failure and notifying the vehicle 1 is performed.

The storage unit 82 is configured by using a large-capacity storage device such as a hard disk drive. The storage unit 82 stores various programs executed by the processing unit 81 and various data necessary for the processing of the processing unit 81. In the present embodiment, the storage unit 82 stores a server program 82a executed by the processing unit 81, and is provided with a power supply success/failure DB (database) 82b that stores information related to the success or failure of power supply transmitted from the vehicle 1. ing. The server program 82a may be written in the storage unit 82, for example, at the manufacturing stage of the vehicular server device 8, or the vehicular server device 8 obtains by communication, for example, what is distributed by another remote server device. Alternatively, the server program 82a recorded in the recording medium 98 such as a memory card or an optical disk may be read by the vehicle server device 8 and stored in the storage unit 82. The server program 82a may be provided in the form of distribution via a network, or may be provided in the form recorded on the recording medium 98.

FIG. 5 is a schematic diagram showing an example of the power supply success/failure DB 82b. The power supply success/failure DB 82b included in the vehicle server device 8 according to the present embodiment stores, for example, a time stamp, vehicle identification information, power supply device identification information, power supply success/failure, and other information in association with each other. Is. The vehicle identification information, the power supply device identification information, the power supply success/failure, and other information are information transmitted from the vehicle 1. In the illustrated example, three types of information of vehicles A, B, and C are stored as vehicle identification information, and three types of information of power feeding devices X, Y, and Z are stored as power feeding device identification information. As for the power supply success or failure, information of either success or failure is stored. As the other information, for example, information about the interruption point of the power supply process specified by the specification processing unit 41d of the charging communication ECU 4 is stored. The time stamp is information on the date and time when the vehicular server device 8 receives this information from the vehicle 1 and stores it in the power supply success/failure DB 82b.

The communication unit 83 communicates with the charging communication ECU 4 mounted on the vehicle 1 via a network such as the Internet and a mobile phone communication network. The vehicle server device 8 can communicate with the plurality of charging communication ECUs 4 mounted on the plurality of vehicles 1. Communication unit 83 transmits the transmission data provided from processing unit 81 to charging communication ECU 4 of desired vehicle 1. Further, the communication unit 83 gives the data received from the charging communication ECU 4 of the vehicle 1 to the processing unit 81.

Further, in the vehicle server device 8 according to the present embodiment, the processing unit 81 reads and executes the server program 82a stored in the storage unit 82, so that the failure factor determination unit 81a, the notification processing unit 81b, and the like are processed by the processing unit. 81 is implemented as a software functional block. When the failure factor determination unit 81a receives from the vehicle 1 information indicating that the power supply process has failed, the failure factor determination unit 81a performs a process of determining whether the vehicle 1 or the power supply device 6 is the cause of the power supply process failure. .. The notification processing unit 81b transmits the determination result of the failure factor determination unit 81a to this vehicle 1. In addition, when the cause of the failure is the power supply device 6, the notification processing unit 81b notifies the power supply device server device 9 that manages the power supply device 6 of the determination result.

<Failure factor determination processing 1>
6 and 7 are schematic diagrams for explaining the failure factor determination process performed by the vehicle server device 8. When the failure factor determination unit 81a of the vehicle server device 8 receives the information indicating that the power feeding process has failed from the vehicle 1, the failure factor determination unit 81a refers to the power feeding success/failure DB 82b of the storage unit 82 to obtain the history of the power feeding process for the vehicle 1. Find out. FIG. 6 shows a history in which the success/failure of the latest nine times of power supply processing is arranged in time series for the vehicle 1 for which “vehicle A” is set as the vehicle identification information. According to the power supply history of the vehicle A, after the first two power supply processes have succeeded, the third to ninth power supply processes have failed. The failure factor determination unit 81a determines that the factor of power supply failure exists in this vehicle 1 when, for example, the failure of the vehicle 1 in the latest power supply history is repeated a predetermined number of times (for example, 3 times) or more. However, when counting the number of failures, the history regarding the same power supply device 6 may be excluded and counting may be performed.

Further, the failure factor determination unit 81a refers to the power supply success/failure DB 82b of the storage unit 82 to check the history regarding the power supply device 6 for which the vehicle 1 has failed to supply power. FIG. 7 shows a history in which the success or failure of the latest 9 times of power supply processing is arranged in time series for the power supply apparatus 6 for which “power supply apparatus X” is set as the power supply apparatus identification information. Note that the examples shown in FIGS. 6 and 7 are not related to each other and are different examples. According to the power feeding history of the power feeding apparatus X in FIG. 7, after the first two power feeding processes have succeeded, the third to ninth power feeding processes have failed. The failure factor determination unit 81a determines that the power supply failure factor is present in the power supply apparatus 6 when the power supply apparatus 6 has been repeatedly failed a predetermined number of times (for example, three times) or more in the latest power supply history. However, when counting the number of failures, the history regarding the same vehicle 1 may be excluded and counted.

The failure factor determination unit 81a examines the history of each of the vehicle 1 and the power supply device 6 that have failed the power supply process, and determines that the power supply process failure has occurred if the failure continues for a predetermined number of times or more. Both the vehicle 1 and the power supply device 6 may be determined to be the cause of the failure. On the contrary, there is a possibility that the failure does not occur more than the predetermined number of times in any of the histories, and in such a case, the failure factor determination unit 81a uses the other information stored in the power supply success/failure DB 82b. Determine the cause of failure.

<Failure factor determination processing 2>
FIG. 8 is a flowchart for explaining the procedure of power supply processing performed between the charging communication ECU 4 and the power supply device 6. In the vehicle power feeding system according to the present embodiment, a predetermined procedure process is performed between power feeding device 6 and charging communication ECU 4 of vehicle 1 before starting wireless power feeding from power feeding device 6 to vehicle 1. The charging communication ECU 4 performs a process of scanning (searching) an AP (access point) of the wireless LAN (step S1). For example, a user who desires wireless power feeding drives the vehicle 1, visits a power feeding station, parks the vehicle 1 at a predetermined position where the power transmission coil 7 of the power feeding device 6 is arranged, and performs an operation provided on the HMI 11 of the vehicle 1. The unit is operated to give an instruction to start wireless power feeding. At this time, among the APs scanned by the charging communication ECU 4, the AP corresponding to the power supply device 6 is selected as the partner of the power supply process.

The charging communication ECU 4 given the start instruction from the user performs an authentication process and a connection process for establishing wireless communication with the power supply device 6 so as to enable wireless communication with the power supply device 6 ( Step S2). The authentication process may be performed according to, for example, the TLS (Transport Layer Security) authentication method, but is not limited thereto. The process performed in step S2 is a process for establishing a so-called communication session.

After the wireless information exchange with the power supply device 6 becomes possible, the charging communication ECU 4 performs a process of confirming the charging service (step S3). This is a process of confirming whether the wireless power supply service that the power supply device 6 can provide and the service requested by the vehicle 1 match. The service includes, for example, a wireless power feeding method or a fee payment method.

After finishing the confirmation of the charging service, the charging communication ECU 4 performs a process of aligning the power receiving coil 5 of the vehicle 1 and the power transmitting coil 7 of the power feeding device 6 (step S4). The alignment process is performed using, for example, a sensor mounted on the vehicle 1 and/or a sensor provided in the vicinity of the location of the power transmission coil 7 of the power feeding device 6. For example, a magnetic sensor or an optical sensor is used as the sensor. The charging communication ECU 4 and the power supply device 6 grasp the positional relationship between the power receiving coil 5 and the power transmitting coil 7 by transmitting and receiving the detection results of these sensors by wireless communication, and guide the vehicle 1 to have an appropriate positional relationship. be able to.

After confirming that the power receiving coil 5 and the power transmitting coil 7 are in the proper positional relationship, the charging communication ECU 4 confirms the charging parameter (step S5). In this step, the charging communication ECU 4 confirms parameters such as the power value and frequency to be transmitted and received, and gives these parameter information to the charging control ECU 3. After that, the charging communication ECU 4 starts wireless power feeding with the power feeding device 6 (step S6). When the battery 2 of the vehicle 1 has reached full charge by wireless power feeding, the charging communication ECU 4 ends wireless power feeding (step S7). After that, the charging communication ECU 4 disconnects the wireless communication with the power supply device 6 (step S8), and ends the power supply process.

In the present embodiment, if any error or the like occurs in the processing of steps S1 to S8, the processing being executed is interrupted. However, several retries may be performed in each step. Further, in the illustrated procedure, eight processes of steps S1 to S8 are performed as the power supply process, but this is an example, and various processes other than the exemplified process may be performed. When any one of the processes is interrupted, the power feeding determination processing unit 41b of the charging communication ECU 4 determines that the power feeding process has failed. When the power supply process fails, the identification processing unit 41d of the charging communication ECU 4 identifies which of the plurality of steps S1 to S8 included in the power supply process has failed. Further, the specific processing unit 41d collects as much information as possible about the event that caused the processing failure. The failure location and the information related to the failure identified by the identification processing unit 41d are given to the determination result transmission processing unit 41c, and are transmitted to the vehicle server device 8 together with the determination result indicating that the power supply processing has failed.

The vehicle server device 8 that has received the information from the vehicle 1 stores the received information in the power supply success/failure DB 82b. Information about the failure location and failure identified by the identification processing unit 41d of the charging communication ECU 4 of the vehicle 1 is stored as other information in the power supply success/failure DB 82b illustrated in FIG. The failure factor determination unit 81a of the vehicle server device 8 can determine the factor of failure of the power supply process based on other information stored in the power supply success/failure DB 82b.

FIG. 9 is a schematic diagram for explaining a failure factor determination process performed by the vehicle server device 8. In the illustrated table, the interruption point identified by the identification processing unit 41d of the charging communication ECU 4, the event related to the failure, and the factor of the failure of the power supply processing determined based on these are associated with each other. For example, if a failure occurs in the AP scan portion of the power supply process and an event that the AP scan cannot be executed is associated with this failure, it is determined that the cause of the power supply process failure is the vehicle 1 side. Guessed. Further, for example, when a failure occurs at the AP scan portion of the power supply process and the event that the power supply device 6 that is the partner of the power supply process cannot be detected occurs in association with this failure, the cause of the power supply process failure is It is presumed to be on the power supply device 6 side.

For example, if a failure occurs in the authentication and connection portion of the power supply process and the event that the connection with the power supply device 6 fails in connection with this failure, the cause of the failure of the power supply process is the vehicle 1 or the power supply device 6. It is supposed to be in one of the. When a failure occurs at the charging service confirmation part of the power supply process and there is a phenomenon that compatible services are not matched in relation to this failure, the cause of the power supply process failure is either the vehicle 1 or the power supply device 6. It is supposed to be in the crab.

For example, if a failure occurs in the position of the power supply process alignment and an event in which the sensor information of the vehicle 1 side cannot be acquired occurs in association with this failure, it is presumed that the cause of the power supply process failure is the vehicle 1 side. To be done. In addition, for example, when a failure occurs in the position of the power supply process alignment and an event in which the roadside (power supply device 6 side) sensor information cannot be acquired in association with this failure, the cause of the power supply process failure is the power supply device 6 Presumed to be on the side of. In addition, for example, when a failure occurs at the position of alignment of the power supply process and a process timeout event occurs in association with this failure, it is estimated that the cause of the power supply process failure is on the vehicle 1 side.

For example, when a failure occurs in the charging parameter confirmation portion of the power supply processing and an event of non-conformance of charging power occurs in connection with this failure, the cause of the power supply processing failure is either the vehicle 1 or the power supply device 6. Presumed to be. In addition, for example, when a failure occurs at the point where the power supply process starts to supply power and an event of not supplying power occurs in connection with this failure, it is estimated that the cause of the power supply process failure is the power supply device 6.

Further, for example, in the entire power supply process, if wireless communication between the charging communication ECU 4 and the power supply device 6 fails and a communication timeout event occurs in association with this failure, the cause of the power supply process failure is the vehicle. 1 or the power supply device 6. In addition, for example, in the entire power supply process, if wireless communication between the charging communication ECU 4 and the power supply device 6 fails, and a parameter abnormality event related to communication occurs in connection with this failure, the power supply process fails. It is presumed that the cause is either the vehicle 1 or the power supply device 6.

The vehicular server device 8 stores in advance the interruption points of power supply processing and the correspondence between events and failure factors as shown in FIG. The failure factor determination unit 81a determines the factor of failure based on this correspondence and the information received from the vehicle 1 and stored as other information in the power supply success/failure DB 82b. Note that, for example, the charging communication ECU 4 stores the correspondence shown in FIG. 9, the charging communication ECU 4 determines a factor of failure based on the information specified by the specifying processing unit 41d, and transmits the determination result to the vehicle server device 8. You may.

<Notification process>
FIG. 10 is a schematic diagram for explaining a procedure of a notification process regarding power supply performed in the vehicle power supply system according to the present embodiment, and is a case where the power supply process ends normally. When the power supply process shown in FIG. 8 is normally completed between the charge communication ECU 4 and the power supply device 6 of the vehicle 1, the charge communication ECU 4 notifies the HMI 11 of the normal completion of the power supply process. The HMI 11 that has received this notification displays a message to the effect that the power supply process has ended normally on the display unit, and notifies the user of the vehicle 1 of the message.

In addition, the charging communication ECU 4 transmits, via the wireless communication device 10, a notification that the power supply process has ended normally (success) to the vehicle server device 8. At this time, the charging communication ECU 4 includes in the notification the vehicle identification information for identifying the vehicle 1 and the power supply device identification information for identifying the power supply device 6, together with the determination result that the power supply process has been successful. Send to. The vehicle server device 8 that has received the notification from the vehicle 1 stores the received information in the power supply success/failure DB 82b. When the power supply process is successful, the vehicle server device 8 does not have to notify the vehicle 1.

FIG. 11 is a schematic diagram for explaining a procedure of a notification process regarding power supply performed in the vehicle power supply system according to the present embodiment, and is a case where the power supply process ends abnormally. When the power supply process illustrated in FIG. 8 ends abnormally between the charging communication ECU 4 and the power supply device 6 of the vehicle 1, the charging communication ECU 4 notifies the HMI 11 of the abnormal end of the power supply process. The HMI 11 that has received this notification displays a message to the effect that the power supply processing has ended abnormally on the display unit, and notifies the user of the vehicle 1 of the message.

In addition, the charging communication ECU 4 transmits, via the wireless communication device 10, a notification that the power supply process has abnormally ended (failed) to the vehicle server device 8. At this time, the charging communication ECU 4 receives the determination result that the power supply process has failed, the vehicle identification information that identifies the vehicle 1, the power supply device identification information that identifies the power supply device 6, and the interruption point identified by the identification processing unit 41d. And event information are included in the notification and transmitted to the vehicle server device 8. The vehicle server device 8 that has received the notification from the vehicle 1 stores the received information in the power supply success/failure DB 82b.

When the power supply process has failed, the vehicle server device 8 determines whether the cause of the failure is the vehicle 1 or the power supply device 6. The vehicle server device 8 notifies the vehicle 1 that has failed in the power supply process of the determination result of the failure factor. This notification is received by the wireless communication device 10 of the vehicle 1, and the wireless communication device 10 notifies the HMI 11 of the failure factor. The HMI 11 that has received this notification displays a message indicating whether the cause of the power supply process failure is the vehicle 1 or the power supply device 6 on the display unit, and notifies the user of the vehicle 1 of the message. When the cause of the failure is the power supply device 6, the vehicle server device 8 notifies the power supply device server device 9 that manages the power supply device 6 of the failure factor.

<Flowchart>
FIG. 12 is a flowchart showing a procedure of notification processing performed by charging communication ECU 4 according to the present embodiment. The power feeding communication processing unit 41a of the processing unit 41 of the charging communication ECU 4 according to the present embodiment sends and receives information to and from the power feeding device 6 and performs the power feeding process shown in FIG. 8 (step S21). Next, the power feeding determination processing unit 41b of the processing unit 41 determines whether the power feeding processing has succeeded (step S22).

When it is determined that the power supply process has been successful (S22: YES), the determination result transmission processing unit 41c of the processing unit 41 notifies the vehicle server device 8 that the power supply process has been successful, via the wireless communication device 10. (Step S23), the process ends. At this time, the notification transmitted from the determination result transmission processing unit 41c to the vehicle server device 8 includes a determination result indicating that the power supply process has been successful, vehicle identification information for identifying the vehicle 1, and power supply for identifying the power supply device 6. Device identification information is included.

When it is determined that the power supply process has failed (S22: NO), the identification processing unit 41d of the processing unit 41 identifies a location where interruption has occurred in a plurality of processes included in the power supply process (step S24). The determination result transmission processing unit 41c notifies the vehicle server device 8 that the power supply process has failed (step S25), and ends the process. At this time, the notification transmitted from the determination result transmission processing unit 41c to the vehicle server device 8 includes the determination result indicating that the power supply process has failed, the vehicle identification information for identifying the vehicle 1, and the power supply for identifying the power supply device 6. In addition to the device identification information, the information includes the interruption location of the power supply process identified by the identification processing unit 41d, the event, and the like.

13 and 14 are flowcharts showing the procedure of the notification message transmission process performed by the vehicle server device 8 according to the present embodiment. The processing unit 81 of the vehicular server device 8 determines whether or not the notification regarding the success or failure of the power feeding process has been received from the vehicle 1 (step S31). When the notification has not been received (S31: NO), the processing unit 81 waits until the notification is received. When the notification is received (S31: YES), the processing unit 81 stores the information included in the received notification in the power supply success/failure DB 82b of the storage unit 82 (step S32). The processing unit 81 determines, based on the information included in the received notification, whether or not the power supply processing of the vehicle 1 and the power supply device 6 related to this notification has succeeded (step S33). When it is determined that the power supply process has succeeded (S33: YES), the processing unit 81 ends the process.

When it is determined that the power supply process has failed (S33: NO), the failure factor determination unit 81a of the processing unit 81 stores the power supply process stored in the power supply success/failure DB 82b for the vehicle 1 that is the transmission source of the notification received in step S31. A history of success or failure of is extracted (step S34). Further, the failure factor determination unit 81a extracts a history of success or failure of the power supply processing stored in the power supply success/failure DB 82b for the vehicle 1 that is the transmission source of this notification and the power supply device 6 that has performed the power supply processing (step S35). The failure factor determination unit 81a determines, based on the history extracted in steps S34 and S35, whether the cause of the power feeding process failure is the vehicle 1 or the power feeding device 6 (FIG. 6 and FIG. 6). 7) is performed (step S36).

The failure factor determination unit 81a determines whether or not it is possible to determine whether the cause of the failure is the vehicle 1 or the power feeding device 6 in the process of step S36 (step S37). When it is possible to determine whether the cause of the failure is the vehicle 1 or the power supply device 6 (S37: YES), the failure factor determination unit 81a advances the process to step S40. When it is not possible to determine whether the cause of the failure is the vehicle 1 or the power supply device 6 (S37: NO), the failure factor determination unit 81a notifies the failure of the current power supply process received in step S31 or Information such as the interrupted location of the failed power supply process and the event is acquired from the other information stored in the power supply success/failure DB 82b (step S38). The failure factor determination unit 81a performs a failure factor determination process 2 (see FIG. 9) that determines whether the cause of the power supply process failure is the vehicle 1 or the power supply device 6 based on the acquired information (step S39). ), the process proceeds to step S40.

The notification processing unit 81b of the processing unit 81 determines whether or not at least the power supply device 6 is the cause of the power supply process failure, based on the determination result of the failure factor (step S40). When the cause of the failure is only the vehicle 1 and the cause of the failure is not in the power supply device 6 (S40: NO), the notification processing unit 81b advances the process to step S42. If the cause of failure is at least the power supply device 6 (S40: YES), that is, if the cause of failure is only the power supply device 6, or if the cause of failure is both the vehicle 1 and the power supply device 6, notification processing The unit 81b notifies the power feeding device server device 9 that manages the power feeding device 6 (step S41), and advances the process to step S42. The notification processing unit 81b transmits, as the determination result of the failure factor, which of the vehicle 1 and the power feeding device 6 has the failure factor to the vehicle 1 that has failed the power feeding process (step S42), and ends the process.

<Summary>
In the vehicle power supply system according to the present embodiment having the above configuration, the charging communication ECU 4 mounted on the vehicle 1 performs wireless communication with the power supply device 6 and communication with the vehicle server device 8. To do. The charging communication ECU 4 determines whether the power feeding process from the power feeding device 6 to the vehicle 1 is successful (successful or unsuccessful), and transmits the determination result to the vehicle server device 8. The vehicle server device 8 receives the determination result from the charging communication ECU 4 and stores it in the power supply success/failure DB 82b of the storage unit 82. As a result, the vehicular server device 8 can store information regarding the success or failure of the power supply process in the power supply success/failure DB 82b for the plurality of vehicles 1 and the plurality of power supply devices 6. The vehicle server device 8 determines whether the cause of the power feeding process failure is the vehicle 1 or the power feeding device 6 based on the stored information, and notifies the vehicle 1 of the determination result. Thus, when the power supply process for the battery 2 of the vehicle 1 fails, the user of the vehicle 1 can know which of the vehicle 1 and the power supply device 6 is the cause of the failure.

In addition, the charging communication ECU 4 according to the present embodiment provides the vehicle identification information for identifying the vehicle 1 and the power supply device identification information for identifying the power supply device 6 that has performed the power supply process together with the determination result of the power supply process success or failure. It is transmitted to the server device 8. As a result, the vehicle server device 8 that has received the notification from the charging communication ECU 4 can collect the information regarding the success or failure of the power supply process for each vehicle 1 or each power supply device 6 and determine the failure factor.

Further, the vehicle server device 8 according to the present embodiment stores the determination result received from the charging communication ECU 4, the vehicle identification information and the power supply device identification information in the power supply success/failure DB 82b in association with each other. The vehicle server device 8 determines the factor of failure for the power supply device 6 and the vehicle 1 that have failed in the power supply process based on the history of information stored in the power supply success/failure DB 82b. For example, when the power supply device 6 has failed in the power supply process with the plurality of vehicles 1, the power supply device 6 may be a cause of the failure. Further, for example, when the vehicle 1 has failed in the power supply process with the plurality of power supply devices 6, the vehicle 1 may be a cause of the failure. By determining the factor of failure based on the history of the stored information, the vehicle server device 8 can accurately determine the factor of failure of the power supply process.

Further, in the vehicle power feeding system according to the present embodiment, the power feeding process performed between power feeding device 6 and vehicle 1 includes a plurality of processes performed in a predetermined order. When the power supply process fails, the charging communication ECU 4 identifies which part of the plurality of processes included in the power supply process has failed, and transmits information on the identified failed part to the vehicle server device 8. Accordingly, the vehicle server device 8 can know which of a plurality of processes included in the power supply process has failed, and can accurately determine the cause of the power supply process failure.

Further, when the vehicle server device 8 according to the present embodiment determines that the cause of the power supply process failure is the power supply device 6, the vehicle server device 8 notifies the power supply device server device 9 that manages the power supply device 6. As a result, it is possible to notify the administrator of information regarding the power supply device 6 in which a failure or the like may occur, and to prompt the administrator to repair the power supply device 6.

In the present embodiment, the charging communication ECU 4 and the power supply device 6 of the vehicle 1 are configured to perform wireless communication, but the configuration is not limited to this, and wired communication may be performed. Further, although the vehicle 1 and the power feeding device 6 are configured to perform wireless power feeding, the configuration is not limited to this, and power feeding may be performed via a power feeding cable. In this case, the communication between the charging communication ECU 4 and the power supply device 6 may be performed via a power supply cable.

The information on the success or failure of the power supply process shown in FIGS. 5 to 7 is an example, and the present invention is not limited to this. The procedure of the power supply process shown in FIG. 8 is an example, and the procedure is not limited to this, and the procedure of the power supply process may be appropriately changed according to the standard or the like. Correspondence between the interruption point and the failure factor shown in FIG. 9 is an example, and the present invention is not limited to this.

Further, in the present embodiment, charging communication ECU 4 of vehicle 1 transmits information regarding the success or failure of the power feeding process to vehicle server device 8, and vehicle server device 8 determines the cause of failure based on this information. However, these processes can be similarly performed in the power feeding device 6 and the power feeding device server device 9. For example, the power feeding device 6 may be configured to transmit information regarding success or failure of the power feeding process to the power feeding device server device 9, and the power feeding device server device 9 may determine a factor of failure based on this information. The power supply device server device 9 can determine the cause of failure by the same method as the vehicle server device 8 described above. The power supply device server device 9 notifies the power supply device 6 of the determination result, and the power supply device 6 can display a message for notifying the failure factor on the display unit, or can notify the vehicle 1 of the failure factor.

The embodiments disclosed this time are to be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above meaning but by the scope of the claims, and is intended to include meanings equivalent to the scope of the claims and all modifications within the scope.

1 vehicle 2 battery 3 charge control ECU
4 Charge communication ECU (in-vehicle communication device)
5 Power receiving coil 6 Power feeding device 7 Power transmitting coil 8 Vehicle server device (server device)
9 Power Supply Device Server Device 10 Wireless Communication Device 11 HMI
41 processing unit 41a power feeding communication processing unit 41b power feeding determination processing unit (power feeding determination unit)
41c Judgment result transmission processing unit (transmission processing unit)
41d Specific processing unit (specification unit)
42 storage unit 42a program (computer program)
43 wireless communication unit 44 in-vehicle communication unit 81 processing unit 81a failure factor determination unit 81b notification processing unit (notification unit, second notification unit)
82 storage unit 82a server program 82b power supply success/failure DB
83 communication unit 98,99 recording medium

Claims (14)

An in-vehicle communication device that communicates with a power supply device that supplies power to the vehicle,
A server device that communicates with the in-vehicle communication device,
The in-vehicle communication device,
A power supply determination unit that determines success or failure of processing related to power supply from the power supply device to the vehicle,
A transmission processing unit that performs a process of transmitting the determination result of the power supply determination unit to the server device,
The server device is
A storage unit that stores the determination result transmitted from the vehicle-mounted communication device,
Based on the determination result stored in the storage unit, a failure factor determination unit that determines whether the factor of the process related to power supply is the power supply device or the vehicle,
A vehicle power supply system, comprising: a notification unit that notifies the vehicle of the determination result of the failure factor determination unit. The transmission processing unit, together with the determination result of the power supply determination unit, information for identifying the vehicle in which the in-vehicle communication device is mounted, and information for identifying the power supply device that has performed the process related to the power supply. The vehicle power feeding system according to claim 1, which transmits to the server device. The storage unit stores the determination result of the power supply determination unit, the information for identifying the vehicle and the information for identifying the power supply device in association with each other,
The vehicle power feeding system according to claim 2, wherein the failure factor determination unit determines a factor of failure of the power feeding device and the vehicle that have failed in a process related to power feeding, based on a history of information stored in the storage unit. .. The process related to the power supply includes a plurality of processes performed in a predetermined order,
The in-vehicle communication device has a specifying unit that specifies which of the plurality of processes has failed when the power supply determining unit determines that the process related to the power supply has failed,
The vehicle power feeding system according to any one of claims 1 to 3, wherein the transmission processing unit transmits information related to the process specified by the specifying unit. 3. The server device according to claim 1, further comprising a second notification unit that notifies the administrator of the power supply device when the failure factor determination unit determines that the failure factor is the power supply device. The vehicle power feeding system according to any one of 4 to 4. An in-vehicle communication device that communicates with a power supply device that supplies power to a vehicle,
A power supply determination unit that determines success or failure of processing related to power supply from the power supply device to the vehicle,
An in-vehicle communication device, comprising: a transmission processing unit that performs a process of transmitting the determination result of the power supply determination unit to the server device. The transmission processing unit, together with the determination result of the power supply determination unit, information for identifying the vehicle in which the in-vehicle communication device is mounted, and information for identifying the power supply device that has performed the process related to the power supply. The vehicle-mounted communication device according to claim 6, which transmits to the server device. The process related to the power supply includes a plurality of processes performed in a predetermined order,
When the power supply determination unit determines that the process related to the power supply has failed, a specifying unit that specifies which of the plurality of processes has failed,
The in-vehicle communication device according to claim 6 or 7, wherein the transmission processing unit transmits information related to the process specified by the specifying unit. A server device that communicates with an in-vehicle communication device mounted on a vehicle that receives power from a power supply device,
A storage unit that stores the determination result of the success or failure of the process related to the power supply transmitted from the in-vehicle communication device;
Based on the determination result stored in the storage unit, a failure factor determination unit that determines whether the factor of the process related to power supply is the power supply device or the vehicle,
A notification unit that notifies the vehicle of the determination result of the failure factor determination unit. The storage unit stores the determination result of the success or failure of the process related to the power feeding, the information for identifying the vehicle and the information for identifying the power feeding device in association with each other,
The server device according to claim 9, wherein the failure factor determination unit determines a failure factor for the power supply device and the vehicle that have failed in a process related to power supply, based on a history of information stored in the storage unit. The server according to claim 9 or 10, further comprising a second notification unit that notifies the administrator of the power supply device when the failure factor determination unit determines that the failure factor is the power supply device. apparatus. In-vehicle communication device that communicates with the power supply device that supplies power to the vehicle,
Determine success or failure of the process related to the power supply from the power supply device to the vehicle,
A computer program that causes a process of transmitting the determination result to the server device. In the server device that communicates with the in-vehicle communication device installed in the vehicle that receives power from the power supply device,
The determination result of the success or failure of the process related to the power supply transmitted from the vehicle-mounted communication device is stored in the storage unit,
Based on the determination result stored in the storage unit, it is determined whether the factor of the process related to power supply is the power supply device or the vehicle,
A server program that causes the vehicle to be notified of the determination result. Using an in-vehicle communication device that communicates with a power supply device that supplies power to a vehicle, determines success or failure of processing related to power supply from the power supply device to the vehicle, and transmits a determination result to a server device,
The server device stores the determination result transmitted from the vehicle-mounted communication device in a storage unit, and based on the determination result stored in the storage unit, the cause of the process related to power supply is the power supply device or the vehicle. A notification method of determining which of the two is the above and notifying the vehicle of the determination result.

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