Route setting device and program

Abstract

To provide a route setting device and program that can promote power supply to a power network even if the non-use timing is not easily determined.SOLUTION: A route setting device 1 is used for a vehicle 12 that transmits and receives power in a non-contact manner to and from a charging facility 14 that charges the vehicle or a power supply facility 15 to which power is supplied from the vehicle. The route setting device comprises: an acquisition unit 2 that acquires pieces of position information 4 and 5 of a departure place S and a destination G, initial SOC information 6 related to the SOC at the departure, and a destination SOC information 7 related to the scheduled SOC at the destination; a storage unit 31 that stores map information 8 including the positions of the charging facility and power supply facility; and a setting unit 3 that sets a route 11 passing through at least the power supply facility on the basis of the pieces of position information, map information, initial SOC information, and destination SOC information.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to a technology for facilitating the transmission and reception of electric power between a vehicle equipped with a battery, such as an electric vehicle (Battery Electric Vehicle: BEV) or a hybrid vehicle (HV), and a power grid. [Background technology]

[0002] There has long been a technology known as the Vehicle-to-Grid (V2G) system, the practical application of which is being considered. This technology utilizes vehicle batteries to charge the batteries and discharge (feed power) into the power grid, helping to balance the supply and demand of electricity.

[0003] Patent Document 1 discloses a power control system that sets a lower limit for the State of Charge (SOC) of a battery-equipped vehicle, taking into account the time period during which the vehicle is in use, and ensures the amount of power available to the vehicle by restricting the amount of power supplied to the grid. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6958286 Summary of the Invention [Problem to be solved by the invention]

[0005] For example, in the case of cars owned by an organization such as a company, the time of day, duration of use, and distance traveled are fixed, making it easy to determine when the car is not in use. If it is certain that the car is not in use, it can be supplied to the power grid as surplus electricity up to the lower limit of its stored capacity. On the other hand, in the case of private cars, for example, cars are used for leisure or shopping, and the time of day and duration of use vary from day to day, making it difficult to determine when the car is not in use. For this reason, it is difficult to determine how much of the stored electricity can be supplied as surplus electricity, making it difficult to increase the amount of electricity supplied.

[0006] Therefore, an object of the present invention is to provide a route setting device and a program that can prompt power supply to the power grid even when it is difficult to determine the timing of non-use. [Means for solving the problem]

[0007] (1) The route setting device is a route setting device used in a vehicle that transmits and receives power to and from charging equipment or power supply equipment installed on a road, and is characterized by having an acquisition unit that acquires location information of the departure point and destination, initial SOC information related to the SOC at the time of departure, and destination SOC information related to the planned SOC at the destination, a memory unit that stores map information including the locations of the charging equipment and power supply equipment, and a setting unit that sets a route that passes through at least the power supply equipment based on the location information, map information, initial SOC information, and destination SOC information.

[0008] "Location information" is information that indicates a location, such as information expressed as latitude and longitude. "Location information" may also include altitude, or may be information expressed as a different index value that can be converted to "latitude, longitude, altitude."

[0009] "Map information" refers to information about locations and places on the Earth, such as the locations of roads and charging / power supply facilities. The locations and places are expressed, for example, as latitude and longitude, or may be expressed with altitude added, or may be expressed as a different index value that can be converted to "latitude, longitude, altitude."

[0010] Here, SOC (State of Charge) indicates the state of charge of the battery. For example, it is expressed as the ratio of the current amount of charge to the amount of charge in a fully charged state, on a scale of 0 to 100%. "Initial SOC information" is, for example, information indicating the amount of charge in the car's battery at the time of departure, and may be information indicated by a value that can be converted to this. "Destination SOC information" is information indicating the planned battery charge amount after arrival at the destination, and may be information indicated by a value that can be converted to this.

[0011] (2) In the route setting device described in (1), it is preferable that the setting unit corrects the amount of power supplied to the power supply equipment based on current SOC information related to the current SOC linked to the current location information of the vehicle.

[0012] "Current SOC information" is information indicating the current battery charge amount linked to the current location information of the vehicle, and may be information indicated by a value that can be converted to this.

[0013] (3) The destination SOC information may also be set by the user.

[0014] (4) The program is a program for a route setting device used in a vehicle that sends and receives power to or from charging equipment or power supply equipment installed on a road to charge or supply power from the battery it is equipped with, and is characterized in that it causes a computer to obtain location information for the departure and destination, initial SOC information regarding the SOC at the time of departure, and destination SOC information regarding the planned SOC at the destination, obtain map information including the locations of the charging equipment and power supply equipment from a memory unit, and set a route that passes through at least the power supply equipment based on the location information, map information, initial SOC information, and destination SOC information. [Effects of the Invention]

[0015] Surplus electricity can be fed into the power grid in a planned manner. [Brief explanation of the drawings]

[0016] [Figure 1] FIG. 1 is a schematic diagram illustrating one embodiment of a system. [Figure 2] FIG. 1 is a functional block diagram illustrating one embodiment of a system. [Figure 3] FIG. 2 is a schematic diagram illustrating an example of a road map. [Figure 4] FIG. 2 is a schematic diagram illustrating an example of a data structure of a map information database. [Figure 5] FIG. 1 is a schematic diagram illustrating an example of a hardware configuration of a vehicle. [Figure 6] FIG. 2 is a schematic diagram illustrating an example of a hardware configuration of a route setting device. [Figure 7] 10 is a flowchart illustrating an embodiment of a process flow of a route setting device. [Figure 8] FIG. 1 is a schematic diagram showing a set route on a map. [Figure 9] 1 is a graph showing the transition of SOC along a route. DETAILED DESCRIPTION OF THE INVENTION

[0017] [1. Brief description] (Introduction) When the vehicle is in use, the destination is known, so the amount of power required to arrive there can be calculated, and the amount of surplus power that can be supplied to the power grid is also determined. A system including a route setting device according to this embodiment supplies the determined surplus power to the power grid for a vehicle whose destination has been determined, by charging the vehicle or supplying power to the power grid along the route to the destination. Furthermore, since the SOC expected at the destination can be set in advance when setting the route, it is possible to prepare for sudden use after arrival.

[0018] (System 10 including a root setting device) First, a system including a route setting device (hereinafter simply referred to as the system) will be described using Figure 1. Figure 1 shows a system 10. The system 10 includes, for example, a route setting device 1 that sets a route 11 (see Figure 8), a vehicle 12 that acquires the set route 11, a charging facility 14 that charges the vehicle 12 or a power supply facility 15 that receives power from the vehicle 12, and a power grid 16 that is connected to the charging facility 14 and the power supply facility 15. The route setting device 1 and the vehicle 12 are also connected to each other via a communication network 17 so that they can communicate with each other. In the following description, the charging facility 14 and the power supply facility 15 may be collectively referred to as the charging / power supply facility 13.

[0019] [2. Details of each component] (Root setting device 1) 2 shows an embodiment of a functional block diagram of the system 10. The route setting device 1 shown in FIG.

[0020] (Acquisition part 2) The acquisition unit 2 acquires location information 4, 5 for the departure point S (see FIG. 8) and destination G, initial SOC information 6, destination SCO information 7, current vehicle location information 23a, and current SOC information 18a.

[0021] (Road Map 29) FIG. 3 is a schematic diagram showing an example of a road map. In the road map 29 shown in FIG. 3, the circular frames indicated by the symbol ND are nodes. Each node is assigned an identification number ID, such as ND1 or ND2. In this embodiment, the nodes correspond to the locations where traffic lights are installed. Note that the locations of intersections may also be regarded as nodes. The arrowed line between two nodes indicated by the symbol L is a link. Each link is assigned an identification number ID, for example, L1, L2. The arrow indicates the direction of travel of the road. Link L is distinguished by two lanes, one going up and one going down. In FIG. 2, for ease of visibility, wide road sections are shown as two links L, L. On the other hand, narrow road sections are shown as a single link L for ease of visibility, and are not shown. Note that in the case of one-way streets, there is only one link L, but in this embodiment, for improved visibility, no distinction is made between the link shown as a single link and a one-way link.

[0022] (Map information 8, Map information database 40) Fig. 4 is a schematic diagram showing an example of the data structure of a map information database (hereinafter referred to as map information DB). The map information DB 40 shown in Fig. 4 shows map information 8. The map information 8 consists of node information 41, link information 42, and charging / power supply facility information 51.

[0023] (Node information 41) The node information 41 is made up of a node ID 41a and position information (coordinate information) 41b. In this embodiment, the coordinate information 41b is made up of longitude and latitude, but any value that can be converted into this may be used.

[0024] (Link information 42) The link information 42 includes a link ID 42a, a start point 42b, an end point 42c, the number of lanes 42d, a road type 42e, and a road name 42f. Other items may also be included in the link information 42. The direction indicated by the link arrow corresponds to the direction from the start point 42b to the end point 42c. The number of lanes 42d indicates the number of lanes. The road type 42e indicates the type of road, such as a national road, a city road, or a private road. The road name 42f indicates the number / name of the national road, city road, etc.

[0025] (Charging / Power Supply Equipment Information 51) The charging / power supply facility information 51 includes a charging facility ID 51a, position information (coordinate information) 51b of the charging facility, a power supply facility ID 51c, and position information (coordinate information) 51d of the power supply facility. Other items may also be included.

[0026] (Settings section 3) The setting unit 3 sets a route 11 that passes through a charging / power supply facility 13 based on the respective position information 4, 5 of the departure point S and the destination G, map information 8, initial SOC information 6, and destination SOC information 7.

[0027] (Route 11) The route 11 is a series of time information from departure to arrival and position information of the car 12 corresponding to the time information.

[0028] (car 12) Next, the configuration of the car 12 will be described with reference to Figure 5. The car 12 shown in Figure 5 is roughly composed of a control unit 18, a battery 19, a coil 20, and a power generation unit 21. The car 12 may be a hybrid car, an electric car, a plug-in hybrid car, a fuel cell car, or the like. Alternatively, the car may be any vehicle that can be driven on public roads, such as a motorcycle, a bicycle, or an electric kick scooter.

[0029] (Control unit 18) The control unit (ECU) 18 performs various controls on the vehicle 12. In this embodiment, it controls the operations of the battery 19 and the power generation unit 21. The control unit 18 is also connected to a communication unit 22, a position detection unit 23, a display unit 24, and an input unit 25. The control unit 18 is a known unit including a processor such as a CPU 30 and a storage unit 31 (described later in FIG. 6). The storage unit 31 stores programs for the system 10 as well as information such as various parameters used in the programs. The CPU 30 executes the programs stored in the storage unit 31, thereby performing various types of control in the vehicle 12. Note that the various types of control may be performed by dedicated hardware (electronic circuits).

[0030] (Communications Department 22) The communication unit 22 is configured to communicate with the route setting device 1 and external devices such as a terminal. The communication unit 22 transmits to the route setting device 1 position information 23a of the vehicle 12, current SOC information 18a corresponding to the position information 23a, initial SOC information 6, and destination SOC information 7. The communication unit 22 also receives the set route 11 from the route setting device 1.

[0031] (Position detection unit 23) The position detection unit 23 has a function of acquiring position information 23a of the vehicle 12. For example, the position detection unit 23 acquires the position information 23a using a GPS (Global Positioning System) sensor. Note that a positioning method other than the GPS sensor, such as Wi-Fi positioning or beacon positioning, may also be used.

[0032] (Display section 24) As the display unit 24, for example, a device that displays a screen such as a liquid crystal display (LCD), a plasma display panel (PDP), or an organic electroluminescence (EL) display is used.

[0033] (Input section 25) The input unit 25 displays various screens for user input operations on the display unit 24. In this embodiment, for example, in addition to the destination G, destination SOC information 7 and conditions 9 (described later) are input. The information to be input is not limited to these.

[0034] (Battery 19) Battery 19 stores power for driving vehicle 12. Known vehicle power storage devices such as liquid secondary batteries, all-solid-state secondary batteries, and battery packs can be used as battery 19. Examples of vehicle secondary batteries include lithium-ion batteries and nickel-metal hydride batteries. The battery 19 is provided with a sensor 19a that monitors the state of the battery. The monitoring sensor 19a detects the voltage, current, and temperature of the battery 19. The detected information is sent to the control unit 18. The control unit 18 obtains current SOC information 18a and initial SOC information 6 from the detected information.

[0035] (Coil 20) The coil 20 is provided under the vehicle 12. In this embodiment, for example, it is installed under the floor. The coil 20 transmits and receives power to and from the charging / power supply equipment 13. Specifically, the vehicle 12 receives (charges) power wirelessly (i.e., contactlessly) from the charging equipment 14 through the coil 20, and transmits (supplies) power contactlessly to the power supply equipment 15 through the coil 20 of the vehicle 12. Any method of wireless power transmission may be used, and may be a magnetic resonance method or an electromagnetic induction method. Alternatively, other methods may be adopted.

[0036] (Power conversion unit 26) A power conversion unit 26 is provided in the electrical path from coil 20 to battery 19. Power conversion unit 26 is configured to convert the power supplied to the vehicle from charging equipment 14 into power suitable for charging battery 19. Power conversion unit 26 also converts the power of battery 19 into power suitable for supplying to power supply equipment 15.

[0037] (Power Generation Division 21) The power generation unit 21 is a motor generator 21a. In this embodiment, the power generation unit 21 further includes a solar panel 21b. Other known power generation mechanisms may also be included. A power conversion unit 26 is provided in the electrical path between the power generation unit 21 and the battery 19. The power conversion unit 26 converts the power generated by the power generation unit 21 into power suitable for charging the battery 19.

[0038] (Motor generator 21a) The motor generator 21a is controlled by the control unit 18. The motor generator 21a rotates the drive wheels of the vehicle 12 using power supplied from the battery 19. The motor generator 21a also performs regenerative power generation and charges the generated power into the battery 19.

[0039] (Solar Panel 21b) The solar panel 21b is provided on the top of the vehicle 12. In this embodiment, it is installed on the top surface of the vehicle 12, for example. The solar panel 21b is a panel that integrates solar cells and generates solar power. The generated power is charged into the battery 19. Note that a known solar panel may be used as the solar panel 21b.

[0040] (Charging / power supply equipment 13) The charging / power supply equipment 13 may be installed not only on the road 28 but also in a parking lot, a roadside station, or a parking space such as a PA or SA on a highway.

[0041] (Charging equipment 14) The power supply equipment 14 includes a coil 27 connected to the power grid 16. For example, a plurality of coils 27 are installed under the ground of a driving lane of a road 28 in the direction the road extends. Such a road 28 is called a power supply lane or a charging lane. The coil 27 uses power supplied from the power grid 16 to supply power to the coil 20 of the vehicle 12 in a non-contact manner, for example, via an electromagnetic field. This allows the vehicle 12 to receive power while traveling.

[0042] (Power Supply Equipment 15) Returning to Fig. 1, power supply equipment 15 has almost the same configuration as charging equipment 14 described above, and therefore the same parts are denoted by the same reference numerals and their description will be omitted. Coil 27 of power supply equipment 15 is installed, for example, under the ground of the road near the stopping position just before traffic light 45. Since power is supplied while vehicle 12 is stopped, one or more coils 27 are installed.

[0043] (others) Since the charging equipment 14 and the power supply equipment 15 have almost the same structure for transmitting / receiving power, the charging equipment 14 can receive power from the vehicle 12, and the power supply equipment 15 can charge the vehicle 12. Furthermore, coil 27 of charging facility 14 may be installed under the ground of road 28 near the stop line of traffic light 45. Conversely, multiple coils 27 of power feeding facility 15 may be installed under the ground in the travel lane of road 28 in the direction in which the road extends.

[0044] (power grid 16) The power grid 16 is constructed by power transmission and distribution facilities. A plurality of power plants are connected to the power grid 16. The power grid 16 receives a supply of electric power from the power plants.

[0045] (Communication Network 17) The communication network 17 is, for example, a communication network of the Internet, and is also constructed by a mobile phone network, a wireless communication path, Ethernet (registered trademark), and the like.

[0046] [3. Hardware configuration] Next, the hardware configuration of the route setting device 1 will be described with reference to Fig. 6. The hardware configuration of the control unit 18 is almost the same as the hardware configuration of the route setting device 1, so the same parts are denoted by the same reference numerals and their description will be omitted.

[0047] (Hardware configuration of route setting device 1) 6, the route setting device 1 of this embodiment uses, for example, a computer. The route setting device 1 is equipped with a CPU (or GPU) 30. To the CPU 30, for example, a memory (hereinafter referred to as a storage unit) 31, a connection port 33 for connecting / reading a storage device 32, etc., and a communication circuit 34 for communicating with the outside via a network are connected via a bus line 35.

[0048] (Storage unit 31) The storage unit 31 stores a program 36 (36a) for processing the operation of the system 10, map information 8 including location information 14a, 15a of the charging equipment 14 and the power supply equipment 15, conditions 9, a map information database (map information DB) 40, and a vehicle information database (vehicle information DB) 48. A browser program 37 and an OS (operating system) 38 may also be stored. The program 36 (36a) is installed in the route setting device 1 by the storage device 32.

[0049] In this embodiment, the program 36 (36a) may operate in cooperation with the OS 38 and the browser program 37. The program 36 (36a) may also operate independently without using the browser program 37 or the OS 38.

[0050] In the hardware configuration of the above-mentioned program 36 (36a), the functions shown in the function block diagram of Figure 2 are realized, for example, using CPU 30 and program 36 (36a), but some or all of them may be sequence-controlled using a logic circuit such as a microcomputer or a PLC (programmable logic controller).

[0051] [4. Program] (Flowchart showing the processing of the system 10) FIG. 7 is a flowchart showing an embodiment of the processing of the program 36 (36a: second embodiment) used in the route setting device 1 in the system 10.

[0052] (S1: Obtaining information) The CPU 30 of the route setting device 1 (see FIG. 6) acquires the destination G, the current position information 23a of the vehicle 12, the initial SOC information 6, and the destination SOC information 7. The destination G is acquired as the destination position information 5 from the map information 8.

[0053] (S2: Set the route) In addition to the information acquired in step S1, a route 11 is set based on map information 8 and conditions 9. An example of route setting will be described below. Note that route setting is not limited to this, and other known methods may also be used. In this embodiment, a tentative route is first set to have the shortest distance, the shortest time, or the lowest power consumption to the destination G (see FIG. 8). At least a power supply facility 15 to be passed through is added to the tentative route to set a route 11. A charging facility 14 to be passed through may also be added.

[0054] (Estimate surplus power) The travel distance of the tentative route is calculated based on the map information DB 40 (see FIG. 4). Also, the fuel efficiency of the vehicle 12, the amount of power generated per hour by the power generation unit 21, etc. are acquired from the vehicle information DB 48 (see FIG. 6), and the power consumption required for the travel distance of the tentative route is calculated. Next, the surplus power is estimated by subtracting the amount of stored power to be left at destination G (destination SOC information 7) and the power consumption required for travel along the tentative route from the initial charge amount (initial SOC information 6).

[0055] (Determine the power supply facility 15 to be passed through) Assuming that a car 12 virtually travels along a hypothetical route, if the time (hour) and location of a specific point on the hypothetical route satisfy the conditions of a time of high electricity demand (daytime) and a location of high electricity demand (urban area), the route 11 is set so that it passes through the power supply facility 15 that is closest to the specific point that satisfies the conditions. The estimated surplus power is supplied to the set power supply facility 15 as the power supply amount. If the estimated power supply amount cannot be supplied all at once, power may be supplied to a different power supply facility 15. The different power supply facility 15 may be set to be located closer to the destination G. Furthermore, if the time and location of the specific point satisfy only one of the conditions of electricity demand, the route 11 is set so that it passes through the power supply facility 15 that is closest to that point.

[0056] (Determine the charging facility 14 to go through) Assuming that a car 12 virtually travels along a hypothetical route, if a specific time (hour) and location on the hypothetical route meets the conditions of a time of low electricity demand (early morning / night) and a location with low electricity demand (rural area), the route 11 is set so that the car passes through the charging facility 14 that is closest to the specific point that meets the conditions. The car charges at the set charging facility 14. If the time and location of the specific point meets only one of the conditions of electricity demand, the route 11 is set so that the car passes through the charging facility 14 that is closest to that point.

[0057] (Condition 9) The extent to which the vehicle deviates from the tentative route and passes through the charging facility 14 or the power supply facility 15 is determined in accordance with the following condition 9. (1) In order to go through the charging / power supply facility 13, the amount of driving power consumed is not greater than or equal to the amount charged / power supplied by the charging / power supply facility 13. Furthermore, in this embodiment, the following is defined as condition 9: Note that the following condition does not necessarily have to be adopted. (2) Use charging / power supply equipment 13 installed on the road 28. (3) SOC is within the range of 90-30%. (4) When charging, charge during times or in areas (rural areas) where electricity demand is low, and supply electricity during times or in areas (urban areas) where electricity demand is high. (5) Consider the probability of stopping at a red light at traffic light 45. For example, calculate the probability of stopping at traffic light 45 from the ratio of green light time to red light time. Taking this probability into account, the vehicle is allowed to stop at a predetermined number of traffic lights 45 (where charging / power supply equipment 13 is installed) while traveling along route 11.

[0058] (S3: Send the set route) The set route 11 is transmitted to the vehicle 12. The transmitted route 11 is displayed on the display unit 24 of the vehicle 12. Alternatively, for example, multiple route 11 candidates may be displayed on the display unit 24, and the route selected by the user may be adopted.

[0059] (Route 11) 8 is a schematic diagram showing the set route 11 on a map. The solid line indicates the route 11. Reference symbols 11a and 11b indicate the outbound and return routes, respectively. Reference symbols d0 to d10 shown in the figure indicate points on the route 11.

[0060] FIG. 9 shows the travel points of the vehicle 12 along the route 11 and the planned SOC at each travel point (planned SOC information 43a). When the planned SOC information 43a for each travel point is linked, a planned SOC graph indicated by the solid line at reference numeral 43 is generated. The horizontal axis in the figure indicates the travel points, which correspond to the reference numerals d0 to d10 in FIG. 9. The vertical axis indicates the planned SOC at each travel point.

[0061] (Outbound 11a) Returning to Figure 9, we will explain the outbound route 11a. The outbound route 11a shown in the figure is a route that starts from Kobe, the departure point S, in the morning, passes along the west shore of Lake Biwa while sightseeing, and travels to Tsuruga, the destination G, from the evening until night. (1) Point d0 is a parking lot at home where charging equipment 14 is installed. Battery 19 is charged while parked. Reference numeral 50 indicates the charge amount. (2) In the section d0-d1, the SOC decreases according to the mileage. (3) In section d1-d2, the vehicle passes through charging facility 14 (see FIG. 1). Charging facility 14 is called a charging lane. In this embodiment, the vehicle departs in the morning, which is a time when electricity demand is low. Therefore, charging is performed in this section. In the figure, the SOC remains constant, but charging may slow the decrease in SOC or even increase it slightly. (4) In the section d2-d3, the SOC decreases according to the distance traveled. (5) At point d3, the vehicle passes through power supply equipment 15 (see FIG. 1). In this embodiment, the time when the vehicle is traveling through point d3 is a time period when electricity demand is high. Therefore, power is supplied at point d3. Power supply equipment 15 is installed near the stop line of an intersection with traffic lights 45. The vehicle 12 supplies power to power supply equipment 15 while the traffic light is red. Reference numeral 49 indicates the amount of power supplied to power supply equipment 15 at point d3. (6) In the section d3-d4, the SOC decreases according to the distance traveled. (7) At point d4, the vehicle passes through the power supply facility 15. In this embodiment, power is supplied in two separate steps. The second step, point d4, is close to the destination G. (8) In the section d4-d5, the SOC decreases according to the distance traveled. (9) The vehicle arrives at destination G at point d5. The SOC at destination G is 30% or higher. This is within the SOC range of 90-30% specified in condition 9. Point d5 is a hotel parking lot where power supply equipment 15 is installed. Battery 19 is charged while the vehicle is parked. Reference numeral 50 indicates the charge amount.

[0062] 5. Other Embodiments Next, we will explain other embodiments of the system 10. The other embodiments explained below are almost the same as the system 10 described above, so the same parts are given the same reference numerals and their explanation will be omitted.

[0063] (Second embodiment) A description will now be given of another embodiment of the system 10. A system 10a (see FIG. 2) according to the second embodiment includes a step S4-6 (see the dashed line) after the step S3.

[0064] (S4: Acquisition of current location information 23a and current SOC information 18a) The control unit 18 monitors the state of the SOC of the vehicle 12 traveling toward the destination G at predetermined distance intervals or at predetermined elapsed time intervals. In step S4, the route setting device 1 acquires the current location information 23a and the current SOC information 18a from the control unit 18.

[0065] (S5: Determine the difference between the current SOC information 18a and the planned SOC information 43a) A determination is made as to whether there is a predetermined difference between the acquired current SOC information 18a and the estimated SOC information 43a. The dotted line indicated by the reference numeral 44 in the figure is a current SOC graph connecting the current SOC information 18a at each point. If there is a difference greater than the predetermined value, corrections are made.

[0066] (S6: Correct the power supply amount) The difference between the current SOC information 18a and the planned SOC information 43a is corrected. For example, the power supply amount 49 at point d3 is decreased. Reference numeral 51 indicates the amount of correction. The charge amount 50 may be corrected in a similar manner.

[0067] (Third embodiment) Next, we will explain yet another embodiment of the system 10. In a system 10b according to the third embodiment (see FIG. 2), in step S1, instead of the SOC value of 90-30% or more specified in condition 9, destination SOC information 7 set by the user is acquired as a lower limit (see the two-dot chain line). For example, the user may want to secure a larger amount of charge (for example, 50% of a full charge) in consideration of the next use after reaching destination G, or may want to use up the battery 19 to reach destination G due to an insufficient initial charge (less than 30%). However, the present invention is not limited to these cases.

[0068] (Return 11b) The return trip 11b will be described in detail using the graph showing the transition of SOC in Figure 9. In the figure, after returning home to Kobe, destination G, the user sets 50% as destination SOC information 7 (see reference numeral 39). The return trip 11b is a route that departs from Tsuruga, departure point S, in the morning, travels along the eastern shore of Lake Biwa, and returns home to Kobe, destination G, from the evening through the night.

[0069] (1) In the section d5-d6, the SOC decreases according to the distance traveled. (2) In the section d6-d7, the vehicle passes through the charging facility 14. In this embodiment, the vehicle departs in the morning, a time when the demand for electricity is low. Therefore, charging is performed in this section. (3) Although power supply equipment 15 is installed at point d7, power is not supplied because the SOC is set to 50% at the destination, Kobe. (4) In the section d7-d8, the SOC decreases according to the distance traveled. (5) Although power supply equipment 15 is installed at point d8, power is not supplied because the SOC is set to 50% at the destination, Kobe. (6) In the section d8-d9, the SOC decreases according to the distance traveled. (7) At point d9, the power is supplied via the power supply facility 15. In this embodiment, point d9 is in an urban area and is in a time zone where electricity demand is high, so power is supplied at this point. (8) Section d9-d10: SOC decreases according to the distance traveled. (9) Arrive at Kobe at point d10 with SOC at 50%.

[0070] [6. Other] (1) The items described as "other" in the above-described embodiments can be used in appropriate combinations. (2) Some of the functions of the route setting device 1 may be executed by an external server. (3) Separate terminals may be used instead of the position detection unit 19, display unit 24, and input unit 25 of the vehicle 12. The terminal is a terminal device used by the user, such as a portable terminal such as a laptop computer, tablet terminal, smartphone, or mobile phone. The terminal may be owned by the user or may be loaned to the user. The terminal may operate in conjunction with a drive recorder or navigation device installed in the vehicle 12. The terminal may also be a drive recorder or navigation device integrally installed in the vehicle 12.

[0071] (Other Conditions 9) Other examples of the condition 9 are listed below. One or more of these conditions may be set. Also, the user may be allowed to set a new condition via the input unit 25. (1) Do not go through charging facility 14. (2) Do not pass through the same charging / power supply facility 13 on one route. (3) If the shortest distance, shortest time, or excess of the minimum power consumption of the tentative route is within a predetermined range, the tentative route may pass through the same charging / power supply facility 13 multiple times. (4) Set the SOC outside the range of 90 to 30%. (5) Use charging / power supply equipment 13 that is not installed on the road, for example, installed at a service area, parking area, or parking lot on a highway.

[0072] [7. Summary] (1) The route setting device 1 is a route setting device used in a vehicle that transmits and receives power contactlessly between a charging facility 14 that charges the vehicle 12 or a power supply facility 15 that supplies power from the vehicle, and is characterized by having an acquisition unit 2 that acquires location information 4, 5 of a departure point S and a destination G, initial SOC information 6 related to the SOC at the time of departure, and destination SOC information 7 related to the planned SOC at the destination, a memory unit 31 that stores map information 8 including the locations of the charging facility and the power supply facility, and a setting unit 3 that sets a route 11 that passes through at least the power supply facility based on the location information, map information, initial SOC information, and destination SOC information.

[0073] For example, for users who want to use their car freely, such as those who do not have set daily usage times or who are considering the possibility of using their car for sudden trips, the timing of non-use is unclear, making it difficult to determine how much of the stored electricity can be supplied as surplus electricity. The route setting device 1 makes a power supply / charging plan for the vehicle 12 whose destination G is set, and can therefore calculate the amount of power required to reach the destination. This makes it possible to grasp the surplus power that can be supplied to the power grid 16, and encourages the vehicle to supply the surplus power in a planned manner.

[0074] (2) In such a route setting device 1, the setting unit 3 corrects the amount of power supply 49 to the power supply equipment based on the current SOC information 18a relating to the current SOC linked to the current location information 23a of the vehicle 12, making it easy to manage the SOC at the destination G.

[0075] (3) Furthermore, since the destination SOC information 7 is set by the user, the SOC expected at the time of arrival is set in advance, and can be used for the next use after arriving at destination G.

[0076] (4) The program 36 is a program for a route setting device used in a vehicle that wirelessly transmits and receives power between a charging facility 14 that charges the vehicle 12 or a power supply facility 15 that supplies power from the vehicle, and is characterized in that the program 36 causes a computer 30 to acquire location information 4, 5 for the departure point S and the destination G, initial SOC information 6 regarding the SOC at the time of departure, and destination SOC information 7 regarding the planned SOC at the destination, acquire map information 8 including the locations of the charging facility and the power supply facility from a memory unit 31, and set a route 11 that passes through at least the power supply facility based on the location information, map information, initial SOC information, and destination SOC information. [Explanation of symbols]

[0077] 1. Route setting device 2 Acquisition part 3. Settings 4. Location information of departure point 5. Destination location information 6 Initial SOC information 7 Destination SOC information 8. Map Information 9 conditions 10 System including a root setting device (system) 11 routes 12 cars 13 Charging / power supply equipment 14 Charging equipment 14a Location information of charging facilities 15 Power supply equipment 15a Location information of power supply equipment 16 Power grid 17. Communication Networks 18 Control Unit 18a Current SOC information 19 Battery 19a Monitoring sensor 20 coils 21 Power Generation Department 21a Motor generator 21b Solar Panel 22 Communications Department 23 Position detection unit 23a Location information 24 Display section 25 Input section 26 Power conversion section 27 Coil 28 Road 29 Road Map 30 CPU 31 Memory (storage section) 32 Recording Devices 33 connection ports 34 Communication Circuit 35 Bus Line 36 Programs 37 Browser Program 38 OS 39 Destination SOC information: 50% 40 Map Information Database (Map Information DB) 41 Node Information 41a Node ID 41b Coordinate information 42 Link Information 42a Link ID 42b Starting point 42c End 43 Planned SOC Graph 43a Planned SOC Information 44 Current SOC graph 45 Traffic Lights 48 Car Information Database (Car Information DB) 49 Power supply 50 charge amount 51 Correction amount

Claims

1. A route setting device used in a vehicle that transmits and receives power to and from a charging facility or power supply facility installed on a road to charge an on-board battery or to supply power from the battery, an acquisition unit that acquires location information of a departure point and a destination point, initial SOC information relating to the SOC at the time of departure, and destination SOC information relating to the SOC planned at the destination; a storage unit that stores map information including the locations of the charging facility and the power supply facility; a setting unit that sets a route that passes through at least the power supply facility based on the location information, map information, initial SOC information, and destination SOC information.

2. The route setting device according to claim 1 , wherein the setting unit corrects the amount of power supplied to the power supply facility based on current SOC information related to a current SOC linked to current location information of the vehicle.

3. 2. The route planning device according to claim 1, wherein the destination SOC information is set by a user.

4. A program for a route setting device used in a vehicle that transmits and receives power to and from charging equipment or power supply equipment installed on a road, charges an on-board battery, or supplies power from the battery, On the computer, Acquire location information of the departure point and the destination point, initial SOC information relating to the SOC at the time of departure, and destination SOC information relating to the SOC planned at the destination point; acquiring map information including the locations of the charging facility and the power supply facility from a storage unit; A program that sets a route that passes through at least the power supply facility based on the location information, map information, initial SOC information, and destination SOC information.

Images