WO2014038293A1

WO2014038293A1 - Travel support system, travel support server, and vehicle

Info

Publication number: WO2014038293A1
Application number: PCT/JP2013/069388
Authority: WO
Inventors: 義考矢次
Original assignee: 日産自動車株式会社
Priority date: 2012-09-07
Filing date: 2013-07-17
Publication date: 2014-03-13
Also published as: JP2015228047A

Abstract

A vehicle (200) receives contactless power supply, when traveling through a power supply segment in a travel lane (La). A travel support server (10) searches a plurality of vehicle data stored in a storage unit (12), extracts vehicle data having as the condition therefor a charging efficiency that is at least a prescribed value, and extracts the travel position and speed of the vehicle included in the extracted vehicle data. The travel support server (10) also notifies the vehicle (200) of the extracted travel position and vehicle speed, as travel support information, in order to improve charging efficiency.

Description

Driving support system, driving support server, and vehicle

The present invention relates to a travel support system, a travel support server, and a vehicle that perform travel support for a vehicle traveling in a power feeding section of a travel lane.

Conventionally, a non-contact power supply system that supplies power in a non-contact manner by magnetic coupling of a pair of coils is known, and is being applied to vehicles such as electric vehicles. For example, a power supply device incorporating a primary coil that supplies power is disposed in a power feeding section of a traveling lane in which the vehicle travels, and a contactless charging device incorporating a secondary coil that receives power is disposed in the vehicle. The Thereby, the vehicle can receive power supply in a non-contact manner while traveling in the power feeding section.

For example, Patent Document 1 discloses a method of searching for one or a plurality of routes so that a vehicle travels in an area where power is supplied from a power supply device based on map information, and teaching a user a predetermined route. Has been.

However, even if the route on which the power feeding device is installed is known, it is not known where the power feeding device is installed in the traveling lane, so depending on the traveling mode of the vehicle traveling on the traveling lane, the charging efficiency may be significantly reduced. There is a risk that it will end.

JP 2010-115032 A

An object of the present invention is to provide a method capable of improving charging efficiency when a vehicle is traveling in a power feeding section of a traveling lane and is supplied with electric power in a contactless manner.

The driving support system of the present invention provides driving support information to a vehicle that is supplied with electric power in a non-contact manner from a power supply device arranged in a power supply section of a driving lane. In this case, vehicle data is extracted from vehicle data obtained from a plurality of vehicles traveling in the power feeding section of the travel lane on the condition that the charging efficiency is equal to or higher than a specified value, and the vehicle included in the extracted vehicle data The travel position and the vehicle speed are extracted. Then, the vehicle is notified of the extracted travel position and vehicle speed as travel support information.

According to the present invention, it is possible to specify a traveling position and speed with high charging efficiency based on vehicle data transmitted from the vehicle. Then, by notifying the vehicle of the travel position and speed as travel support information, the vehicle can travel using the travel support information. As a result, the charging efficiency of the vehicle can be improved.

Explanatory drawing which shows typically the whole structure of the driving assistance system which concerns on 1st Embodiment. Explanatory drawing which shows typically the principal part of the driving assistance system centering on a vehicle Functional block diagram of the configuration of the driving support server Flow chart showing the flow of processing by the driving support system Explanatory diagram showing the concept of travel position error correction Explanatory drawing which shows typically the whole structure of the driving assistance system which concerns on 2nd Embodiment. The flowchart which shows the flow of the process by the driving assistance system which concerns on 2nd Embodiment.

(First embodiment)
FIG. 1 is an explanatory diagram schematically showing the overall configuration of the driving support system according to the present embodiment, and FIG. 2 is an explanatory diagram schematically showing the main part of the driving support system centered on the vehicle 200. . This travel support system is a system for assisting the vehicle 200 in an appropriate travel mode when the vehicle 200 represented by an electric vehicle travels in the power feeding section of the travel lane La. It is configured to include.

Here, prior to the description of the driving support server 10, the vehicle 200 and the non-contact power supply system will be described. The non-contact power supply system includes a power supply device 100 and a non-contact charging device 210. The non-contact power supply system supplies electric power from the power supply device 100 in a non-contact manner, and the non-contact charging device 210 receives the electric power. 200 is a system for charging a battery 220 provided in 200.

The power feeding device 100 is disposed corresponding to the power feeding section in the travel lane La, and supplies power to the non-contact charging device 210 of the vehicle 200 in a non-contact manner. The power supply apparatus 100 is mainly configured by, for example, a power transmission coil (primary coil) or an external power source connected to the power transmission coil.

The non-contact charging device 210 is disposed in the vehicle 200 and receives the power supplied from the power supply device 100 in a non-contact manner. The non-contact charging device 210 includes a power receiving coil (secondary coil) and the like. For example, the power receiving coil is provided in a place such as a bottom surface (chassis) of the vehicle 200 and between the rear wheels. When the vehicle 200 travels in a power feeding section of the travel lane La, power transmission of the power feeding device 100 is performed. It looks like it faces the top of the coil. When a voltage is applied to the power transmission coil, magnetic coupling occurs between the power transmission coil and the power reception coil, and power is supplied from the power transmission coil to the power reception coil. The magnetic coupling includes electromagnetic induction and magnetic resonance.

The non-contact charging device 210 includes a communication device (not shown) and can communicate with the communication device of the power supply device 100 on the traveling lane La side. Thereby, it can be recognized that the vehicle has entered the power feeding section in the traveling lane La and has passed through the power feeding section.

The vehicle 200 further includes a battery 220, a charge amount monitoring device 230, a display device 240, a navigation device 250, a communication device 260, and a vehicle control device 270.

The battery 220 charges the electric power received by the non-contact charging device 210 or supplies the received electric power to a load such as a drive motor, an inverter, and a vehicle air conditioner as a power source of the vehicle 200. The battery 220 is a power source of the vehicle 200, and is composed of an assembled battery in which a plurality of single cells are connected in series. As each cell, an alkaline storage battery such as a nickel metal hydride battery, an organic electrolyte battery such as a lithium ion battery, or the like can be used.

The charge amount monitoring device 230 monitors the charge amount (SOC: State Of Charge) of the battery 220. As the charge amount monitoring device 230, a microcomputer mainly composed of a CPU, a ROM, a RAM, and an I / O interface can be used. The charge amount monitored by the charge amount monitoring device 230 can be read by the vehicle control device 270 as necessary.

The display device 240 is a display device that displays a predetermined image, and for example, a liquid crystal display can be used. The display device 240 is disposed, for example, on an instrument panel of the vehicle, displays navigation information output from the navigation device 250 included in the vehicle 200, and is output from the vehicle control device 270 via the navigation device 250. Information can be displayed.

The navigation device 250 has map data in which road information is associated with position information, and specifies the position of the vehicle 200 through detection results of a vehicle speed sensor 255, a GPS sensor (not shown), and the like. And the navigation apparatus 250 displays the present position of the own vehicle Ca on the display apparatus 240 with road information, or displays the guidance route to a target point on the display apparatus 240.

The navigation device 250 includes a GPS antenna that receives a signal from a GPS (Global Positioning System) satellite, and can acquire position information of the vehicle 200. In addition, speed information of the vehicle 200 detected by the vehicle speed sensor 255 is input to the navigation device 250.

The communication device 260 is a communication interface for performing data communication with the travel support server 10. The vehicle control device 270 can transmit predetermined information to the travel support server 10 via the communication device 260 or acquire information transmitted from the travel support server 10 via the communication device 260. As a method of bidirectional data communication, for example, a wireless LAN (Local Area Network) generally used for data communication can be used. However, other than this, a technique is performed via a communication network such as a mobile phone. It may be. As the communication device 260, a dedicated wireless communication device mounted on the vehicle 200 may be used, or a communication terminal having a data communication function such as a mobile phone may be connected and used.

The vehicle control device 270 has a function of controlling the traveling of the vehicle 200. As the vehicle control device 270, a microcomputer mainly composed of a CPU, a ROM, a RAM, and an I / O interface can be used.

In relation to the present embodiment, the vehicle control device 270 acquires travel support information by communicating with the travel support server 10 when traveling in the power feeding section of the travel lane La, and acquires the travel support information from the vehicle 200. To provide.

Specifically, the vehicle control device 270 transmits driving support information to the driving support server 10 when entering the charging section of the driving lane La or when reaching a point in front of a predetermined distance in the charging section. Request. In response to this request, the vehicle control device 270 also transmits information on the charge type and the vehicle type. Here, the charging type is information that identifies the type of the non-contact charging device 210 mounted on the host vehicle, and the vehicle type is information that indicates the type of the vehicle 200.

When the driving support server 10 transmits the driving support information in response to this request, the vehicle control device 270 receives the driving support information transmitted from the driving support server 10. Then, vehicle control device 270 presents the received travel support information to the occupant. The driving support information received from the driving support server 10 includes information indicating a driving mode in which high charging efficiency in the driving lane La can be obtained. For example, the vehicle control device 270 can display the received travel support information on the display device 240. Further, when the vehicle 200 includes an automatic driving system that automatically drives the vehicle 200, the vehicle control device 270 controls the driving of the vehicle 200 according to the driving support information, so that the driving support information is occupant. May be presented.

On the other hand, when the vehicle control device 270 travels in the charging section of the travel lane La, the vehicle control device 270 transmits information on the travel state and the charge state of the vehicle 200 (hereinafter referred to as “vehicle data”) to the travel support server 10. To do. Here, the vehicle data includes a vehicle position, a vehicle speed, a travel locus, a vehicle height, a charge amount, a charge efficiency, a charge type, a vehicle type, and the like.

The vehicle position is a position in the vehicle width direction (lateral direction) of the vehicle in the travel lane La, and position information specified by the navigation device 250 can be used. In addition to this, a positional shift between the communication device on the power feeding apparatus 100 side and the communication device on the non-contact charging apparatus 210 side may be used, or the periodicity from the camera 280 that captures the front of the vehicle 200 may be used. The obtained image may be processed and the relative position to the white line may be used.

Also, the vehicle speed is the speed of the vehicle 200 traveling in the power feeding section, and the vehicle speed information detected by the vehicle speed sensor 255 can be used through the navigation device 250. The travel locus is a transition of the vehicle position when traveling in the power feeding section, and can be specified from the above-described time-series transition of the vehicle position. The vehicle height is information indicating the vehicle height of the vehicle 200 and can be specified based on the number of passengers specified through the detection result of the passenger detection sensor 290 that detects the presence or absence of the passenger. The charge amount is the charge amount of the battery 220, and the charge amount specified by the charge amount monitoring device 230 can be used. The charging efficiency is the efficiency of power transfer between the power supply apparatus 100 and the non-contact charging apparatus 210, that is, the efficiency of the power charged into the battery 220 with respect to the power supplied from the power supply apparatus 100. It can be obtained based on the amount of power received per unit time during traveling of the section and the amount of power per unit time received during maximum efficiency (specified value).

The travel support server 10 is a computer including a CPU, a memory such as a ROM and a RAM, an HDD (Hard Disk Drive) as an auxiliary storage device, and these elements are connected to each other via a bus. The driving support server 10 also includes a communication interface for performing data communication with the communication device 260 included in the vehicle 200.

FIG. 3 is a block diagram functionally showing the configuration of the driving support server 10. The driving support server 10 includes a communication unit 11, a storage unit 12, and an information extraction unit 13 when this is viewed functionally.

The communication unit 11 communicates with the communication device 260 of the vehicle 200. Specifically, the communication unit 11 acquires vehicle data from the vehicle 200 traveling in the power feeding section (information acquisition unit). Moreover, the communication part 11 notifies driving assistance information to a vehicle (notification part).

The storage unit 12 stores vehicle data acquired from the plurality of vehicles 200 by the communication unit 11. Thereby, the storage unit 12 stores vehicle data, that is, data describing the vehicle position, vehicle speed, travel locus, vehicle height, charge amount, charge efficiency, charge type, and vehicle type. By receiving, a plurality of vehicle data is constructed as a database.

When the transmission of driving support information is requested from the vehicle 200, the information extraction unit 13 searches a plurality of vehicle data stored in the storage unit 12, and retrieves the vehicle data on condition that the charging efficiency is equal to or higher than a specified value. In addition to extraction, the travel position and vehicle speed of the vehicle included in the extracted vehicle data are extracted. The extracted information functions as driving support information.

FIG. 4 is a flowchart showing a flow of processing by the driving support system. In the vehicle 200 that travels in the power feeding section of the travel lane La, the vehicle control device 270 transmits vehicle data to the travel support server 10 (S1).

In the travel support server 10, the communication unit 11 receives vehicle data transmitted from the vehicle 200 and stores it in the storage unit 12 (S2). The information extraction unit 13 searches a database (a data group related to vehicle data acquired from the plurality of vehicles 200) stored in the storage unit 12, and classifies the vehicle data according to the charge type and the vehicle type (S3). Next, the information extraction unit 13 analyzes the charging efficiency for each classified vehicle data (S4), and extracts the vehicle data for which the charging efficiency is equal to or higher than a specified value (S5). Thereby, the reference data in which the charging type and the vehicle type are associated with the vehicle data including the charging efficiency equal to or higher than the specified value is created.

On the other hand, in the vehicle 200 that enters the charging section of the driving lane La or the vehicle 200 that has reached a point in front of a predetermined distance in the charging section, the vehicle control device 270 transmits driving support information to the driving support server 10. Request (S6). Moreover, the vehicle control apparatus 270 transmits the information regarding a charging type and a vehicle type together in this request | requirement.

In the driving support server 10, when the communication unit 11 receives information transmitted from the vehicle 200, the information extraction unit 13 searches for reference data based on the charging type and vehicle type of the vehicle 200 that has requested transmission of the driving support information. . And driving | running | working assistance server 10 will extract a driving | running | working position and a vehicle speed from the said vehicle data, if the vehicle data linked | related with the charging type and vehicle type of the vehicle 200 which requested | required transmission of driving assistance information are specified (S7). Then, the communication unit 11 transmits the extracted travel position and speed as travel support information to the vehicle 200 that has requested transmission of travel support information (S8).

When the vehicle control device 270 receives the travel support information from the travel support server 10, the vehicle control device 270 displays the received travel position and speed on the display device 240 (S9). Further, the vehicle control device 270 may control the traveling of the vehicle 200 according to the traveling position and speed when the automatic driving system that automatically drives the vehicle 200 is activated (S9).

As described above, in the present embodiment, the driving support server 10 searches the plurality of vehicle data stored in the storage unit 12 and extracts the vehicle data on the condition that the charging efficiency is equal to or higher than the specified value. The vehicle travel position and the vehicle speed included in the vehicle data obtained are extracted. Then, the travel support server 10 notifies the vehicle 200 of the extracted travel position and vehicle speed as travel support information.

When traveling in the power feeding section of the traveling lane, even if driving according to the guideline that is a guide for traveling, for example, the traveling locus is shifted between the vehicles 200 due to variations in driving. Therefore, based on the charging efficiency calculated for each vehicle 200, it is possible to identify a traveling position and speed with high charging efficiency by analyzing which traveling mode the charging efficiency is high. Then, by notifying the vehicle 200 of the travel position and speed as travel support information, the vehicle 200 can travel using the travel support information. Thereby, the charging efficiency of the vehicle 200 can be improved.

The vehicle data further includes a charge type and a vehicle type, and the driving support server 10 extracts the vehicle data in addition to the condition that the charge type and the vehicle type are the same.

According to such a configuration, even if the charging section travels at the same traveling position and speed, if the charging type and vehicle type are different, the charging efficiency tends to be different. Therefore, the reliability of the driving support information can be improved by extracting the vehicle data according to the charging type and the vehicle type. In the present embodiment, from the viewpoint of data processing efficiency, vehicle data with charging efficiency equal to or higher than a specified value is extracted as reference data for each charging type and vehicle type. However, the vehicle data may be extracted by searching the database in the storage unit 12 in response to the request for the driving support information and performing the charging type and the vehicle type as conditions without performing such advance processing.

In this embodiment, the vehicle 200 displays the driving support information notified from the driving support server 10 on the display device 240. In addition, the vehicle 200 operates the automatic driving system based on the driving support information notified from the driving support server 10.

According to such a configuration, the user can easily reproduce the traveling position and speed with high charging efficiency by driving with reference to information displayed on the display device 240 or by operating the automatic driving system. can do. Thereby, the driving | running | working aspect with high charging efficiency is realizable.

In addition to the travel position and speed, the vehicle height is also related to the charging efficiency. Therefore, the driving support server 10 may extract the vehicle data in addition to the condition that the vehicle height is within a predetermined range. As a result, it is possible to extract vehicle data having a similar tendency in charging efficiency, so that the reliability of the driving support information can be improved.

Moreover, since the charging efficiency varies depending on the charging amount, the accuracy can be improved by correcting the charging efficiency of each vehicle 200 based on the charging amount.

Further, the travel support server 10 may notify the vehicle 200 after correcting the extracted travel position and vehicle speed to a value including a predetermined amount of error in consideration of a change in charging efficiency. For example, as illustrated in FIG. 5, the travel support server 10 sets a travel position Tb in which the charge efficiency is changed by several percent to the travel position Ta extracted from the vehicle data with respect to the vehicle 200. It seems to be notified. Then, the driving support server 10 can monitor the degree of change in charging efficiency, and can correct the data to be provided next to an error range in which the efficiency gradually increases. As described above, by repeatedly giving an error little by little in a range where the change in charging efficiency is small, it is possible to improve data accuracy. Further, by providing information including an error in a part of the section instead of giving information including an error to the entire travel lane La, it is possible to further reduce a decrease in charging efficiency of the traveling vehicle.

In this embodiment, the travel position and speed are reported as travel support information, but a travel locus may be included in the travel support information. In this case, the vehicle 200 (vehicle control device 270) can display the travel locus together with the road information on the display device 240.

In the present embodiment, when the vehicle control device 270 determines that the vehicle cannot travel at the travel position and vehicle speed notified as the travel support information, the charging efficiency is selected from the travel modes corresponding to the host vehicle. The driving support server 10 may request the driving support information recognized as the highest. Even when there is a difference between the information stored in the driving support server 10 and the actual driving environment, the driving support information can be provided so that the charging efficiency is as high as possible.

Further, when the number of vehicle data samples held by the driving support server 10 is small, notification of driving support information may be started after a certain number of samples are collected. In addition, it is possible to cope with this by presenting the approximate travel position and vehicle speed for each vehicle calculated from the design values.

(Second Embodiment)
FIG. 6 is an explanatory diagram schematically showing the overall configuration of the driving support system according to the second embodiment. The difference between the driving support system according to the present embodiment and that of the first embodiment is that the driving support information is specified by exchanging vehicle data through communication between vehicles. That is, this travel support system is a system for assisting the vehicle in an appropriate travel mode when traveling on the travel lane La in which the power supply apparatus 100 is installed, and is configured from a plurality of vehicles 200. . In this case, the vehicle control device 270 of each vehicle 200 has each function (communication unit, storage unit, information extraction unit) included in the travel support server 10 shown in the first embodiment.

FIG. 7 is a flowchart showing a flow of processing by the driving support system according to the second embodiment.

In the vehicle 200 that enters the charging section of the travel lane La or the vehicle 200 that has reached a point before a predetermined distance in the charging section, the vehicle control device 270 performs the following operation on the vehicle 200 that travels in the power feeding section of the travel lane La. The transmission of vehicle data is requested (S10). Moreover, the vehicle control apparatus 270 transmits the information regarding a charging type and a vehicle type together in this request | requirement.

On the other hand, in the vehicle 200 that travels in the power feeding section of the travel lane La, when the vehicle control device 270 receives the vehicle data transmission request, the vehicle control device 270 is transmitted together with the charge type and vehicle type related to its own vehicle data, and the vehicle data transmission request. It is determined whether or not the charging type and the vehicle type are compatible. And when corresponding, the vehicle control apparatus 270 transmits vehicle data to the request | requirement vehicle 20 (S11).

In the requesting vehicle 200, the vehicle control device 270 receives the vehicle data transmitted from the vehicle 200 traveling in the power feeding section, and stores it in the storage unit (S12). The vehicle control device 270 analyzes the charging efficiency based on the received plurality of vehicle data (S13). And the vehicle control part 270 extracts the vehicle data from which charging efficiency becomes more than regulation value, and extracts the driving | running | working position and vehicle speed which are contained in the extracted vehicle data (S14).

Next, the vehicle control device 270 displays the extracted travel position and speed on the display device 240 (S15). In addition, the vehicle control device 270 may control the traveling of the vehicle 200 according to the traveling position, speed, and traveling speed when the automatic driving system that automatically drives the vehicle 200 is activated (S15).

Thus, according to the present embodiment, vehicle data can be acquired through communication between vehicles without using the driving support server 10. Thus, as in the first embodiment, based on the charging efficiency calculated for each vehicle 200, a traveling position with high charging efficiency is analyzed by analyzing which traveling mode the charging efficiency is high. And the speed can be specified. The vehicle 200 can travel using the travel position and speed. Thereby, the charging efficiency of the vehicle 200 can be improved.

In the above-described method, when there is a change in the charging efficiency of the vehicle 200 that is receiving the vehicle data, the vehicle data can be switched to be received from another vehicle 200 with good charging efficiency.

Note that the method shown in the second embodiment can be performed together with the method shown in the first embodiment. That is, whether the vehicle 200 can receive the driving support information from the driving support server 20 or can receive the vehicle data from the vehicle 200 and specify the driving support information based on the vehicle data. It is good also as what can be selected. As a result, during normal times, the driving support server 10 is used to reduce the computational load of the vehicle control device 270, while the difference between the information stored in the driving support server 10 and the actual driving environment is different. When this occurs, it is possible to perform flexible use such as switching so as to acquire vehicle data from the actually traveling vehicle 200.

As mentioned above, although the driving assistance system concerning embodiment of this invention was demonstrated, it cannot be overemphasized that a various deformation | transformation is possible within the scope of the invention, without this invention being limited to embodiment mentioned above. . Moreover, the driving support server which comprises a driving support system, and the vehicle which implement | achieves a driving support system by vehicle-to-vehicle communication also function as a part of this invention.

Claims

A travel support server that provides travel support information to a vehicle including a non-contact charging device that receives power contactlessly from a power feeding device disposed in a power feeding section of a travel lane;
The travel support server includes:
The present invention relates to a charging efficiency indicating efficiency of power transfer between the power supply device and the non-contact charging device from a vehicle traveling in the power feeding section, a traveling position indicating a vehicle width direction position in the traveling lane, and a vehicle speed. An information acquisition unit for acquiring information as vehicle data;
A storage unit for storing vehicle data acquired by the information acquisition unit from a plurality of vehicles;
A plurality of vehicle data stored in the storage unit are searched, vehicle data is extracted on condition that the charging efficiency is equal to or higher than a specified value, and a travel position and a vehicle speed of the vehicle included in the extracted vehicle data are extracted. An information extraction unit for extracting
A notification unit that notifies the vehicle of the travel position and vehicle speed extracted by the information extraction unit as the travel support information;
A driving support system having
The vehicle data further includes a vehicle height,
The travel support system according to claim 1, wherein the information extraction unit extracts the vehicle data in addition to a condition that the vehicle height is within a predetermined range.
The vehicle data further includes a charge type indicating a type of the contactless charging device,
The driving support system according to claim 1 or 2, wherein the information extraction unit extracts the vehicle data in addition to a condition that the charging types are the same.
The vehicle data further includes a vehicle type indicating the type of vehicle,
The travel support system according to any one of claims 1 to 3, wherein the information extraction unit extracts the vehicle data in addition to a condition that the vehicle types are the same.
The information extraction unit corrects the travel position and vehicle speed extracted from the vehicle data to a value including a predetermined amount of error in consideration of the change in the charging efficiency, and causes the notification unit to notify the vehicle. The driving support system according to any one of 1 to 4.
When it is determined that the vehicle cannot travel at the travel position and vehicle speed notified as the travel support information, the travel support that is recognized as having the highest charging efficiency among the travel modes corresponding to the host vehicle. The driving support system according to claim 1, wherein information is requested from the driving support server.
The vehicle acquires information on the charging efficiency, the traveling position, and the vehicle speed as vehicle data from a vehicle traveling in the power feeding section, and the vehicle travels based on the vehicle data in which the charging efficiency exceeds a specified value. The driving support system according to any one of claims 1 to 6, wherein a position and a vehicle speed are specified.
The vehicle includes a display device that displays navigation information output from a navigation device, and displays the driving support information notified from the driving support server on the display device. The described driving support system.
The said vehicle is provided with the display apparatus which displays the navigation information output from a navigation apparatus, and displays a driving | running | working locus on the said display apparatus based on the driving assistance information notified from the said driving assistance server. The driving support system according to any one of 7.
The said vehicle is equipped with the automatic driving system which drives the said vehicle automatically, and operates an automatic driving system based on the driving assistance information notified from the said driving assistance server. Driving support system.
In a driving support server that provides driving support information for a vehicle including a non-contact charging device that receives a non-contact power supply from a power feeding device disposed in a power feeding section of a traveling lane,
The present invention relates to a charging efficiency indicating efficiency of power transfer between the power supply device and the non-contact charging device from a vehicle traveling in the power feeding section, a traveling position indicating a vehicle width direction position in the traveling lane, and a vehicle speed. An information acquisition unit for acquiring information as vehicle data;
A storage unit for storing vehicle data acquired by the information acquisition unit from a plurality of vehicles;
A plurality of vehicle data stored in the storage unit are searched, vehicle data is extracted on condition that the charging efficiency is equal to or higher than a specified value, and a travel position and a vehicle speed of the vehicle included in the extracted vehicle data are extracted. An information extraction unit for extracting
A notification unit that notifies the vehicle of the travel position and vehicle speed extracted by the information extraction unit as the travel support information;
A travel support server.
In a vehicle equipped with a non-contact charging device that receives power supply from a power feeding device arranged in a power feeding section of a traveling lane,
Charging efficiency indicating efficiency of power transfer between the power feeding device and the non-contact charging device from another vehicle traveling in the power feeding section, a traveling position indicating a position in the vehicle width direction of the vehicle in the traveling lane, and An information acquisition unit for acquiring vehicle speed information as vehicle data;
A storage unit for storing vehicle data acquired by the information acquisition unit from a plurality of vehicles;
Searching a plurality of vehicle data stored in the storage unit, extracting vehicle data on condition that the charging efficiency is equal to or higher than a specified value, and a vehicle travel position included in the extracted vehicle data; An information extractor for extracting the vehicle speed;
Vehicle with.