Electric vehicle assistance system, electric vehicle assistance method, and assistance program

Abstract

To reduce a possibility that an electric vehicle becomes unable to travel since electric power supply to a secondary battery cannot be performed.SOLUTION: An electric vehicle support system (1) for supporting electric power supply between electric vehicles (3) each including a secondary battery (5), comprises: an acquisition unit (13) that acquires receiving information including information regarding a position at which the electric vehicle receives electric power supply from another vehicle; and a presentation unit (35) that indicates evaluation information indicating easiness of the electric power supply on a map on the basis of the receiving information.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to an electric vehicle assistance system, an electric vehicle assistance method, and an assistance program that assist electric power supply between electric vehicles equipped with secondary batteries. [Background technology]

[0002] Patent Document 1 describes a charging system that matches a vehicle requesting charging with a vehicle that can supply power by collating information about the vehicle that needs to be charged with information about a vehicle that can supply power. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-130963 Summary of the Invention [Problem to be solved by the invention]

[0004] However, depending on the location where an electric vehicle is traveling, when the electric vehicle needs to be charged, there may not be any electric vehicles traveling nearby that can supply power to the electric vehicle, and the electric vehicle cannot be matched with an electric vehicle that can supply power. The present invention aims to reduce the possibility that the electric vehicle will be unable to run due to an inability to supply power to the secondary battery. [Means for solving the problem]

[0005] One aspect of the present invention is an electric vehicle assistance system that assists electric vehicles equipped with secondary batteries in receiving power between each other, the system including: an acquisition unit that acquires power receiving information including information on a location where the electric vehicle receives power from another electric vehicle; and a presentation unit that displays evaluation information indicating the ease of receiving power on a map based on the power receiving information. a guidance unit that acquires a destination of the electric vehicle and searches for a route to the destination; Equipped with and when the remaining charge of the secondary battery is less than a predetermined value and the ease of receiving power supply is less than a predetermined level for all of the routes searched by the guidance unit, the presentation unit instructs a communication device provided in the electric vehicle to transmit a distress message requesting power supply from another electric vehicle by communication with a radio wave output that is increased compared to normal. It is an electric vehicle assistance system. According to another aspect of the present invention, the evaluation information is a location on the map where the power supply was performed. According to another aspect of the present invention, the evaluation information is a heat map in which a road map is divided into meshes with sides each having a predetermined distance, and which shows the differences in the ease of receiving power in each of the meshes by differences in the display manner including the color, brightness, and / or variations of these of the meshes. According to another aspect of the present invention And, before The presentation unit displays a button for displaying the evaluation information on a display device when displaying a selection button for the searched route on a display device of the electric vehicle. According to another aspect of the present invention, the electric vehicle is provided with a spare secondary battery that can be used by paying a fee to a seller of the electric vehicle, and when the remaining charge of the secondary battery is less than a predetermined value and the ease of receiving power supply is less than a predetermined level for all of the routes searched by the guidance unit, the presentation unit automatically or in response to instructions from the user of the electric vehicle allows a driving control device that controls the driving of the electric vehicle to drive using the spare secondary battery. According to another aspect of the present invention, the receiving information includes a date and time when the power receiving took place, and the evaluation information indicates the ease of receiving the power receiving during a given time period. Another aspect of the present invention is an electric vehicle assistance method for assisting electric vehicles equipped with secondary batteries in receiving power between the electric vehicles, the method being carried out by a computer, the method including the steps of acquiring power receiving information including information on a location where the electric vehicle receives power from another electric vehicle, and displaying evaluation information indicating the ease of receiving the power on a map based on the power receiving information. acquiring a destination of the electric vehicle and searching for a route to the destination; and, when the remaining charge of the secondary battery is less than a predetermined value and the ease of receiving power supply is less than a predetermined level for all of the routes searched in the searching step, instructing a communication device provided in the electric vehicle to transmit a distress message requesting power supply from another electric vehicle by communication with a radio wave output that is increased compared to normal; of have , an electric vehicle assistance method. Yet another aspect of the present invention is a system executed by a computer of an electric vehicle assistance system that assists electric power supply between electric vehicles equipped with secondary batteries. And, in front The computer acquires power supply information including information on a location where the electric vehicle receives power supply from another electric vehicle. Part, fronta presentation unit that displays evaluation information indicating the ease of receiving power on a map based on the receiving information; and a guidance unit that acquires a destination of the electric vehicle and searches for a route to the destination. Function as Support Support Program and when the remaining charge of the secondary battery is less than a predetermined value, and when the ease of receiving power supply is less than a predetermined level for all of the routes searched by the guidance unit, the presentation unit instructs a communication device provided in the electric vehicle to transmit a distress message requesting power supply from another electric vehicle by communication with a radio wave output that is increased compared to normal. Support Program is . [Effects of the Invention]

[0006] According to the present invention, it is possible to reduce the possibility that the electric vehicle will be unable to run due to an inability to supply power to the secondary battery. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a diagram showing a configuration of an electric vehicle assistance system according to an embodiment of the present invention; [Figure 2] FIG. 2 is a diagram illustrating a configuration of a support server. [Figure 3] FIG. 2 is a diagram illustrating a configuration of a support device. [Figure 4] FIG. 10 is a diagram showing an example of a guidance screen including a searched route. [Figure 5] FIG. 10 is a diagram illustrating an example of a guide screen on which a heat map is superimposed. [Figure 6] FIG. 3 is a flowchart showing a processing procedure of the electric vehicle assistance system. DETAILED DESCRIPTION OF THE INVENTION

[0008] [Embodiment] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1 is a diagram showing the configuration of an electric vehicle assistance system 1 according to one embodiment of the present invention. The electric vehicle assistance system 1 includes an assistance server 2 and an assistance device 4 provided in a plurality of electric vehicles 3 used by each user U. The assistance server 2 and the assistance device 4 are connected to each other via a communication network 6 so as to be able to communicate with each other.

[0009] Each of the electric vehicles 3 is equipped with a secondary battery 5, and an electric vehicle 3 with a secondary battery 5 having a low remaining charge level can receive power supply from an electric vehicle 3 with a high remaining charge level, with the consent of the users U. The electric vehicle assistance system 1 assists in the supply and receipt of electric power between electric vehicles 3 equipped with secondary batteries 5 as described above.

[0010] 2 is a diagram showing an example of the configuration of the support server 2. The support server 2 has a first processor 10, a first memory 11, and a first communication device 12. The first memory 11 is configured by, for example, a volatile and / or non-volatile semiconductor memory and / or a hard disk device.

[0011] The first communication device 12 is a transceiver for the assistance server 2 to communicate with each assistance device 4 of the electric vehicle 3 via the communication network 6.

[0012] The first processor 10 is, for example, a computer including a CPU (Central Processing Unit) and the like. The first processor 10 may have a configuration including a ROM (Read Only Memory) in which a program is written, a RAM (Random Access Memory) for temporarily storing data, and the like. The first processor 10 includes an acquisition unit 13 and an evaluation unit 14 as functional elements or functional units.

[0013] These functional elements of the first processor 10 are realized, for example, by the first processor 10, which is a computer, executing a first assistance program 16 stored in a first memory 11. The first assistance program 16 can be stored in any computer-readable storage medium. Alternatively, all or part of the functional elements of the first processor 10 can be configured by hardware each including one or more electronic circuit components.

[0014] The acquisition unit 13 acquires power supply information including information on the location where the electric vehicle 3 received power supply from another electric vehicle 3 (hereinafter referred to as power supply location). The power supply information may also include information on the date and time when the power supply was received. The acquisition unit 13 saves the acquired power supply information in the power supply information DB 15 stored in the first memory 11.

[0015] The evaluation unit 14 generates evaluation information indicating the ease of receiving power based on the power receiving information acquired by the acquisition unit 13 and stored in the power receiving information DB 15. The evaluation information is a heat map showing the positions on a map where power has been received in the past, and / or a road map divided into meshes with sides each having a predetermined distance, showing the differences in the ease of receiving power in each mesh by differences in the display mode including the color, brightness, and / or the manner in which these change.

[0016] For example, the evaluation unit 14 calculates an evaluation score indicating the ease of receiving power in each mesh in a road map divided into meshes with sides each having a predetermined distance. The evaluation score may be higher, for example, the easier it is to receive power. The evaluation unit 14 generates the heat map by indicating the difference in the evaluation score for each mesh by changing the display mode, including the color, brightness, and / or variations of these, of the mesh.

[0017] For example, based on an evaluation information request (described later) from the assistance device 4 of the electric vehicle 3, the evaluation unit 14 calculates an evaluation score for each mesh for a predetermined distance range centered on the route indicated by the route information included in the evaluation information request (specifically, the route searched by the guidance unit 34 of the electric vehicle 3).

[0018] Here, the evaluation score is, for example, the number of times power is received between electric vehicles 3 in the mesh. Alternatively, the evaluation score may be calculated based on the power receiving information and the number of charging facilities in the mesh. Alternatively, the evaluation score may be calculated based on the power receiving information and information such as the number of charging stations in the mesh, the number of charging facilities installed at the charging stations, the operating hours of the charging stations, expected vehicle congestion, the power grid power capacity, expected solar power generation based on a weather forecast, and the capacity of station batteries.

[0019] The evaluation information may indicate the ease of receiving power supply during a given time period. When the evaluation information request received from the electric vehicle 3 includes time information, the evaluation unit 14 can create evaluation information indicating the ease of receiving power supply during a specified time period including that time.

[0020] The evaluation unit 14 transmits the evaluation information created based on the evaluation information request from the electric vehicle 3 and the calculated evaluation score for each mesh to the support device 4 of the electric vehicle 3.

[0021] Next, the configuration of the assistance device 4 provided in the electric vehicle 3 will be described. 3 is a diagram showing an example of the configuration of the assistance device 4. The assistance device 4 cooperates with other on-board devices provided in the electric vehicle 3 to generate and transmit supply and receipt information about the electric vehicle 3 to the assistance server 2, and receives evaluation information from the assistance server 2, and performs various assistance operations for the user U and / or the electric vehicle 3.

[0022] As the other on-board devices, the electric vehicle 3 is equipped with a GNSS (Global Navigation Satellite System) device 20, a second communication device 21, and a touch panel 22. The second communication device 21 is a transceiver for communicating with the assistance server 2 and the assistance devices 4 of other electric vehicles 3 via the communication network 6. The touch panel 22 corresponds to the display device in this disclosure.

[0023] The electric vehicle 3 also includes a spare secondary battery 23, a power supply circuit 24, a rotating electric machine 25, a battery management device 26, and a travel control device 27. The rotating electric machine 25 receives power from the secondary battery 5 or the spare secondary battery 23 and operates as a motor that drives the wheels of the electric vehicle 3, and also operates as a generator in so-called regenerative braking operation, charging the secondary battery 5 and the spare secondary battery 23.

[0024] The travel control device 27 is a computer equipped with a processor and a memory, and controls the power supply circuit 24 to supply power from the secondary battery 5 to the rotating electric machine 25 to drive the electric vehicle 3. Furthermore, during regenerative braking, the travel control device 27 controls the power supply circuit 24 to charge the secondary battery 5 and the spare secondary battery 23 with power generated by the rotating electric machine 25.

[0025] The battery management device 26 is a computer equipped with a processor and a memory, and issues instructions to the power supply circuit 24 to manage the charging operation of the secondary battery 5 via a charging connector 28 from another electric vehicle 3 or a charging facility, etc. The battery management device 26 also detects the remaining charge of the secondary battery 5 and the spare secondary battery 23.

[0026] The output of the spare secondary battery 23 is limited by the power supply circuit 24 so that it cannot normally be used. However, in this embodiment, as will be described later, the driving control device 27 controls the power supply circuit 24 in response to an instruction from the assistance device 4, thereby making it possible to supply the output of the spare secondary battery 23 to the rotating electric machine 25, on the condition that a fee is paid to the seller of the electric vehicle 3. For example, when the spare secondary battery 23 is used, the driving control device 27 notifies a server (not shown) of the seller via the second communication device 21. The seller, having received the notification, then charges the user U a usage fee for the spare secondary battery 23.

[0027] The support device 4 includes a second processor 30 and a second memory 31. The second memory 31 is configured by, for example, a volatile and / or non-volatile semiconductor memory and / or a hard disk device.

[0028] The second processor 30 is, for example, a computer equipped with a CPU. The second processor 30 may have a configuration including a ROM in which a program is written, a RAM for temporarily storing data, etc. The second processor 30 has a providing unit 33, a guiding unit 34, and a presenting unit 35 as functional elements or functional units.

[0029] These functional elements of the second processor 30 are realized, for example, by the second processor 30, which is a computer, executing a second assistance program 32 stored in a second memory 31. The second assistance program 32 can be stored in any computer-readable storage medium. Alternatively, all or part of the functional elements of the second processor 30 can be configured by hardware including one or more electronic circuit components.

[0030] The providing unit 33 transmits power supply reception information including information on the power supply reception position where power is supplied from another electric vehicle 3 to the support server 2. For example, when an electric vehicle 3 receives charging of its own secondary battery 5 from another electric vehicle 3, the providing unit 33 transmits power supply reception information including the power supply reception position and time to the support server 2 based on information from the GNSS device 20.

[0031] The guidance unit 34 acquires the destination of the electric vehicle 3 specified by the user U via the touch panel 22, and searches for a route to the destination. For example, the guidance unit 34 searches for multiple routes such as "fastest route," "priority on ordinary roads," and "priority on distance" according to conventional technology, and provides route guidance according to the user U's selection.

[0032] The presentation unit 35 receives evaluation information transmitted from the support server 2 and displays the received evaluation information on a map on the touch panel 22, which is a display device. Specifically, when the guidance unit 34 performs a route search, the presentation unit 35 transmits to the support server 2 an evaluation information request including route information, which is information on multiple routes (hereinafter referred to as searched routes) searched by the guidance unit 34. As described above, the evaluation unit 14 of the support server 2 generates evaluation information for a predetermined distance range centered on the searched route and replies with the generated evaluation information and an evaluation score for each mesh. Then, the presentation unit 35 receives the evaluation information and the evaluation score for each mesh generated by the support server 2.

[0033] Based on the received evaluation score for each mesh, the presentation unit 35 calculates the sum of the evaluation scores of the meshes that the searched route passes through for each searched route. As described above, the evaluation score is a score that indicates the ease of receiving power in each mesh, so the sum of the evaluation scores indicates the difficulty of charging along the entire searched route.

[0034] The presentation unit 35 displays a map showing the searched route and a selection button for the searched route on the display screen of the touch panel 22. At that time, for a searched route for which the calculated sum of evaluation points is less than a predetermined value, the presentation unit 35 displays an evaluation information button near the route selection button for that searched route. When the evaluation information button is pressed, the presentation unit 35 displays the received evaluation information, which is the pickup location and heat map, superimposed on the map display displayed on the touch panel 22. Here, the evaluation information button corresponds to the button in the present disclosure for displaying evaluation information on a display device.

[0035] 4 is a diagram showing an example of a guidance screen including a searched route, a route selection button, and an evaluation information button displayed on the touch panel 22 by the presentation unit 35. The illustrated guidance screen 40 shows three searched routes in a map display 41 at the top of the screen: a "fastest route" route 42a, a "public roads preferred" route 42b, and a "distance preferred" route 42c. The bottom of the screen also displays route selection buttons 43a, 43b, and 43c for each searched route. To the right of the route selection button 43c for the "distance preferred" route 42c, an evaluation information button 44 is displayed, indicating that the sum of evaluation points along the route is less than a predetermined value.

[0036] Fig. 5 is a diagram showing an example of power supply receiving positions and a heat map displayed on the touch panel 22 when the evaluation information button 44 is pressed in Fig. 4. Pressing the evaluation information button 44 in Fig. 4 causes past power supply receiving positions to be indicated by a plurality of triangular marks 46 in the map display 41 based on the evaluation information received from the support server 2, and also causes a heat map 45 to be superimposed on the map display 41. By superimposing the marks 46 indicating power supply receiving positions, the heat map 45, and the map display 41, the user U can easily understand how difficult or easy it will be to charge the electric vehicle 3 by traveling on which roads, and therefore it becomes possible to appropriately select roads to the destination from the perspective of the difficulty of charging.

[0037] 3, when the remaining charge of the secondary battery 5 acquired via the battery management unit 36 ​​is less than a predetermined value, and the ease of receiving power for all of the searched routes searched by the guidance unit 34 is less than a predetermined level (specifically, the sum of the evaluation points is less than a predetermined value), the presentation unit 35 instructs the second communication device 21 to transmit a distress message requesting power supply to the other electric vehicles 3 through communication with a radio wave output that is stronger than usual. As a result, when the remaining charge of the secondary battery 5 is low and charging is difficult no matter which searched route is selected, vehicle-to-vehicle communication with a wider radio wave reach than usual can be performed, thereby increasing the possibility of requesting rescue from other electric vehicles 3.

[0038] For example, before sending a distress message, the presentation unit 35 can display a message on the touch panel 22 asking whether or not to allow the distress message to be sent, and when the user U allows the transmission via the touch panel 22, the presentation unit 35 can send the distress message.

[0039] Alternatively or in addition to the above, when the remaining charge of the secondary battery 5 is less than a predetermined value, and the ease of receiving power for all of the searched routes searched by the guidance unit 34 is less than a predetermined level (specifically, the sum of the evaluation points is less than a predetermined value), the presentation unit 35, automatically or in response to an instruction from the user U, permits the travel control device 27 of the electric vehicle 3 to travel using the spare secondary battery 23. This allows the user U to continue traveling using the spare secondary battery 23 when the remaining charge of the secondary battery 5 is low and charging is difficult no matter which searched route is selected.

[0040] Next, we will explain the processing procedure in the electric vehicle support system 1. Fig. 6 is a flow diagram showing the processing procedure in the electric vehicle support system 1. In this processing, it is assumed that a plurality of pieces of supply receiving information acquired from a plurality of electric vehicles 3 have already been stored in the supply receiving information DB 15 of the support server 2.

[0041] First, when the user U inputs a destination into the touch panel 22 and instructs the guiding unit 34 of the support device 4 to search for a route, the guiding unit 34 performs the route search (S100). In response to the guiding unit 34 performing the route search, the presenting unit 35 of the support device 4 transmits to the support server 2 an evaluation information request including route information of multiple (e.g., three) searched routes searched by the guiding unit 34.

[0042] In response to receiving the evaluation information request, the evaluation unit 14 of the support server 2 generates evaluation information for a predetermined distance range centered on the searched route (S102), and transmits the generated evaluation information and the calculated evaluation score to the corresponding support device 4. The support device 4 receives the transmitted evaluation information and evaluation score.

[0043] Next, the presentation unit 35 of the support device 4 outputs a guidance screen including a map display showing the searched route on the display screen of the touch panel 22 (S104). As described above, this guidance screen includes the map display and route selection buttons, and if there is a searched route whose total evaluation points is less than a predetermined value, it further includes an evaluation information button.

[0044] Next, the guidance unit 34 determines whether any of the route selection buttons has been pressed (S106). If any of the route selection buttons has been pressed (S106, YES), the guidance unit 34 starts route guidance along the searched route corresponding to the pressed route selection button (S108) according to conventional techniques, and ends this process.

[0045] On the other hand, if the route selection button is not pressed in step S106 (S106, NO), the presentation unit 35 determines whether the evaluation information button is pressed (S110). If the evaluation information button is not pressed (S110, NO), the presentation unit 35 returns the process to step S106.

[0046] On the other hand, when the evaluation information button is pressed (S110, YES), the presentation unit 35 displays the evaluation information generated in step S102 superimposed on the map display on the touch panel 22 (S112), and then returns the process to step S106.

[0047] [Other embodiments] In the above embodiment, the presentation unit 35 displays the power supply receiving locations and the heat map superimposed on the map display when the evaluation information button is pressed. However, the presentation unit 35 may display only the power supply receiving locations superimposed on the map display in response to pressing of the evaluation information button. In this case, too, the user of the electric vehicle 3 can easily understand, based on the density of power supply receiving locations displayed on the map, how difficult or easy it will be to charge the electric vehicle 3 by traveling on which road, and can appropriately select the road to the destination from the perspective of the difficulty of charging. This also reduces the possibility that the electric vehicle will be unable to travel due to an inability to supply power to the secondary battery.

[0048] The evaluation unit 14 can change the size on the map of the mesh used to generate the heat map and the mesh used to calculate the evaluation points according to the scale of the map display used by the presentation unit 35. For example, the presentation unit 35 can include the scale of the map display or the specified size of the mesh in the evaluation information request sent to the support server 2.

[0049] The distribution of functional elements between the assistance server 2 and the assistance device 4 in the above-described embodiment is an example, and some of the functional elements in the assistance server 2 and the assistance device 4 may be provided in the assistance device 4 or the assistance server 2. For example, the guiding unit 34 and the presenting unit 35 of the assistance device 4 may be provided in the assistance server 2. In this case, the assistance device 4 may include a device that controls input and output of the touch panel 22 used by the guiding unit 34 and the presenting unit 35 for interaction with the user U of the electric vehicle 3.

[0050] Alternatively, the evaluation unit 14 of the support server 2 may be provided in the support device 4, and the support server 2 may transmit the receipt data stored in the receipt information DB 15 stored in the first memory 11 to the support device 4 as necessary.

[0051] The present invention is not limited to the configurations of the above-described embodiments, and can be implemented in various forms without departing from the spirit of the present invention.

[0052] [Configuration supported by the above embodiment] The above-described embodiment supports the following configurations.

[0053] (Configuration 1) An electric vehicle assistance system that assists in the supply and receipt of power between electric vehicles equipped with secondary batteries, comprising: an acquisition unit that acquires supply and receipt information including information on the location where the electric vehicle receives power supply from another electric vehicle; and a presentation unit that displays evaluation information indicating the ease of receiving the power on a map based on the supply and receipt information. According to the electric vehicle assistance system of configuration 1, the user can avoid routes that are difficult to receive power supply from based on the evaluation information presented by the presentation unit, thereby reducing the possibility that the electric vehicle will be unable to run due to an inability to supply power to the secondary battery.

[0054] (Configuration 2) The electric vehicle assistance system according to configuration 1, wherein the evaluation information is the location on the map where the power supply was performed. According to the electric vehicle assistance system of configuration 2, the user can avoid routes where it is difficult to receive power based on the locations where power has been received in the past, thereby reducing the possibility that the electric vehicle will be unable to run due to an inability to supply power to the secondary battery.

[0055] (Configuration 3) The electric vehicle assistance system according to configuration 1 or 2, wherein the evaluation information is a heat map showing the difference in the ease of receiving power in each of the meshes on a road map divided into meshes with sides each having a predetermined distance, by differences in the display manner including the color, brightness, and / or variations thereof of the meshes. According to the electric vehicle assistance system of configuration 3, the user can quickly grasp the ease of receiving power supply for each mesh, making it easier to avoid routes where it is difficult to receive power supply.

[0056] (Configuration 4) An electric vehicle assistance system according to Configuration 3, further comprising a guidance unit that acquires a destination of the electric vehicle and searches for a route to the destination, and the presentation unit, when displaying a selection button for the searched route on a display device of the electric vehicle, displays a button for displaying the evaluation information on the display device. According to the electric vehicle assistance system of configuration 6, it is possible to display evaluation information when necessary during route guidance to a destination.

[0057] (Configuration 5) In the electric vehicle assistance system described in Configuration 4, when the remaining charge of the secondary battery is less than a predetermined value and the ease of receiving power supply is less than a predetermined level for all of the routes searched by the guidance unit, the presentation unit instructs a communication device provided in the electric vehicle to transmit a distress message requesting power supply from other electric vehicles via communication with radio wave output increased above normal. According to the electric vehicle assistance system of configuration 5, when the remaining charge of the secondary battery is low and charging is difficult no matter which search route is selected, vehicle-to-vehicle communication with a wider radio wave reach than usual can be performed, thereby increasing the possibility of requesting rescue from another electric vehicle.

[0058] (Configuration 6) An electric vehicle assistance system according to configuration 4 or 5, wherein the electric vehicle is provided with a spare secondary battery that can be used by paying a fee to a seller of the electric vehicle, and the presentation unit, when the remaining charge of the secondary battery is less than a predetermined value and the ease of receiving power supply is less than a predetermined level for all of the routes searched by the guidance unit, automatically or in response to instructions from the user of the electric vehicle, allows a driving control device that controls the driving of the electric vehicle to drive using the spare secondary battery. According to the electric vehicle assistance system of configuration 6, when the remaining charge of the secondary battery is low and charging is difficult no matter which search route is selected, the user can continue traveling using the spare secondary battery.

[0059] (Configuration 7) An electric vehicle assistance system according to any one of configurations 1 to 6, wherein the receiving information includes the date and time when the power receiving took place, and the evaluation information indicates the ease of receiving the power during a given time period. According to the electric vehicle assistance system of configuration 7, for example, evaluation information for each time period can be generated.

[0060] (Configuration 8) An electric vehicle assistance method carried out by a computer to assist in the supply and receipt of power between electric vehicles equipped with secondary batteries, the method comprising the steps of: acquiring supply and receipt information including information on the location where the electric vehicle received power from another electric vehicle; and displaying evaluation information indicating the ease of receiving power on a map based on the supply and receipt information. According to the electric vehicle assistance method of configuration 8, the user can avoid routes that are difficult to receive power supply from based on the evaluation information presented by the presentation unit, thereby reducing the possibility that the electric vehicle will be unable to run due to an inability to supply power to the secondary battery.

[0061] (Configuration 9) An assistance program executed by a computer of an electric vehicle assistance system that assists in the supply of power between electric vehicles equipped with secondary batteries, the assistance program causing the computer to function as an acquisition unit that acquires supply information including information on the location where the electric vehicle received power from another electric vehicle, and as a presentation unit that displays evaluation information on a map indicating the ease of receiving power based on the supply information. According to the assistance program of configuration 9, the computer can assist in the supply and receipt of power between electric vehicles, thereby reducing the possibility that the electric vehicles will be unable to run due to a lack of power supply. [Explanation of symbols]

[0062] 1...electric vehicle assistance system, 2...assistance server, 3...electric vehicle, 4...assistance device, 5...secondary battery, 6...communication network, 10...first processor, 11...first memory, 12...first communication device, 13...acquisition unit, 14...evaluation unit, 15...receiving information DB, 16...first assistance program, 20...GNSS device, 21...second communication device, 22...touch panel, 23...spare secondary battery, 24...power supply circuit, 25...rotating electric machine, 26...battery management device, 27...driving control device, 28...charging connector, 30...second processor, 31...second memory, 32...second assistance program, 33...providing unit, 34...guidance unit, 35...presentation unit, 40...guidance screen, 41...map display, 42a, 42b, 42c...route, 43a, 43b, 43c...route selection button, 44...evaluation information button, 45...heat map, 46...mark, 47...mesh, 48...grid.

Claims

1. An electric vehicle assistance system that assists electric power supply between electric vehicles equipped with secondary batteries, an acquisition unit that acquires power supply information including information on a location where the electric vehicle receives power supply from another electric vehicle; a presentation unit that displays evaluation information indicating the ease of receiving the power supply on a map based on the receiving information; a guidance unit that acquires a destination of the electric vehicle and searches for a route to the destination; Equipped with When the remaining charge of the secondary battery is less than a predetermined value and the ease of receiving power supply is less than a predetermined level for all of the routes searched by the guidance unit, the presentation unit instructs a communication device provided in the electric vehicle to transmit a distress message requesting power supply from another electric vehicle by communication with a radio wave output that is increased compared to normal. Electric vehicle assistance system.

2. The evaluation information is a location on the map where the power supply was performed. The electric vehicle assistance system according to claim 1 .

3. The evaluation information is a heat map showing the difference in the ease of receiving power supply in each of the meshes in a road map divided into meshes with sides each having a predetermined distance, by differences in the display manner including the color, brightness, and / or change manner of the meshes. The electric vehicle assistance system according to claim 1 or 2.

4. The presentation unit displays a button for displaying the evaluation information on a display device when displaying a selection button for the searched route on the display device of the electric vehicle. The electric vehicle assistance system according to claim 3 .

5. the electric vehicle includes a spare secondary battery that can be used by paying a fee to a seller of the electric vehicle; When the remaining charge of the secondary battery is less than a predetermined value, and the ease of receiving power supply is less than a predetermined level for all of the routes searched by the guidance unit, the presentation unit automatically or in response to an instruction from a user of the electric vehicle allows a travel control device that controls travel of the electric vehicle to travel using the spare secondary battery. The electric vehicle assistance system according to claim 4 .

6. The receiving information includes a date and time when the power receiving is performed, The evaluation information indicates the ease of receiving the power supply in a given time period. The electric vehicle assistance system according to any one of claims 1 to 5.

7. An electric vehicle assistance method for assisting electric power supply between electric vehicles equipped with secondary batteries, carried out by a computer, comprising: acquiring power supply information including information on a location where the electric vehicle receives power supply from another electric vehicle; displaying evaluation information indicating the ease of receiving power supply on a map based on the receiving information; acquiring a destination of the electric vehicle and searching for a route to the destination; a step of instructing a communication device provided in the electric vehicle to transmit a distress message requesting power supply from another electric vehicle by communication with a radio wave output that is increased compared to normal when the remaining charge of the secondary battery is less than a predetermined value and when the ease of receiving power supply is less than a predetermined level for all of the routes searched in the searching step; An electric vehicle assistance method comprising:

8. The method is executed by a computer of an electric vehicle assistance system that assists electric vehicles equipped with secondary batteries in receiving electric power, and includes: an acquisition unit that acquires power supply information including information on a location where the electric vehicle receives power supply from another electric vehicle; a presentation unit that displays evaluation information indicating the ease of receiving the power supply on a map based on the receiving information; and a guidance unit that acquires a destination of the electric vehicle and searches for a route to the destination; A support program that functions as When the remaining charge of the secondary battery is less than a predetermined value and the ease of receiving power supply is less than a predetermined level for all of the routes searched by the guidance unit, the presentation unit instructs a communication device provided in the electric vehicle to transmit a distress message requesting power supply from another electric vehicle by communication with a radio wave output that is increased compared to normal. Support programs.

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