JP2014240757A - Electronic equipment, electronic system, route search method and route search program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To appropriately search a route on which a vehicle is travelable to a destination in accordance with the battery state of the vehicle.SOLUTION: A route search program 200 to be executed by a navigation device includes: route search means 202 for searching a route to a destination by using road map data; battery residual amount acquisition means 204 for acquiring the battery residual amount of a vehicle; battery consumption calculation means 206 for calculating battery consumption on the searched route; travelability determination means 208 for comparing the acquired battery residual amount with the calculated battery consumption to determine whether or not the vehicle is travelable to the destination; charging road search means 210 for searching a charging road existing in a fixed range on the basis of the searched route when it is determined that the vehicle is not travelable to the destination; charging information extraction means 212 for extracting charging information related to the searched charging road; and route candidate presentation means 214 for presenting a plurality of searched routes for enabling a user to select the route.

Description

  The present invention relates to an electronic device having a navigation function, and more particularly to guidance of a guidance route when an electric vehicle travels on a charging road corresponding to wireless power feeding.

  The navigation device can acquire real-time traffic information such as roads and intersections from the outside, search the route to the destination with reference to the traffic information, or re-search the guidance route to avoid traffic It is.

  Conventionally, in a navigation device for an electric vehicle (EV), a route to a destination is searched, and when it is detected that the destination cannot be reached with the current battery level, a route through a charging station is searched. There is technology. On the other hand, a technology has been developed in which a charging lane is provided along the road lane of the existing road, and the battery of the vehicle traveling on this charging lane is charged in a non-contact manner. Is being considered. Charging lanes are expected to be installed in road sections suitable for infrastructure development, for example, in the vicinity of intersections, in specific sections such as uphill roads, and highways, where relatively high charging efficiency can be expected.

  Patent Document 1 is a navigation device capable of searching for a route to a destination, and when searching for a route for charging a vehicle on the way to the destination, the route through the charging lane to the destination is searched. An in-vehicle device is disclosed (Patent Document 1). In Patent Document 2, when it is determined that the remaining power storage amount of the traveling battery at the departure place is less than the required electric energy necessary for reaching the destination from the departure place to the destination, the remaining amount of the traveling battery is exceeded. A power storage information output device that outputs remaining power storage shortage information indicating that the amount of power storage is insufficient is disclosed (Patent Document 2).

Patent Document 3 discloses a display control device that generates a display control signal that displays whether or not the vehicle can be reached to the destination based on the remaining battery level of the driving source of the moving body (Patent Document 3).
Patent document 4 acquires the charging efficiency information which shows the charging efficiency at the time of the vehicle actually performing non-contact charge for every parking position, and the parking position which guides a parking position with charging efficiency based on charging efficiency information A guide device is disclosed (Patent Document 4).

JP 2012-47670 A JP 2011-38845 A JP 2012-2111888 A JP 2011-215703 A

  In a conventional EV navigation device, it is possible to guide to a destination by a searched route, but when the current battery remaining amount cannot reach the destination, the vehicle is routed through a charging station. In this case, it is necessary to stop the vehicle at the charging station, and the arrival time to the destination becomes long. On the other hand, it is possible to search for the route to reach the destination by supplying power while traveling on the charging lane and extending the cruising distance, but the transmission amount of the charging lane and the length of the section are unknown. The amount of charge when actually driving was not known, and the selection of such a route was left to the user's judgment. As a result, a sufficient amount of charge could not be obtained even via the charging lane, and it was not possible to continue to the destination, and eventually it had to go through the charging station.

  The present invention solves such a conventional problem, and an electronic device, an electronic system, and a route search capable of appropriately searching for a route capable of traveling to a destination according to the battery state of the vehicle. It is an object to provide a method and a route search program.

  Furthermore, the present invention solves such a conventional problem, and an electronic device, an electronic system, and a route that can appropriately search for a route that passes through a charging road or a charging station according to the battery state of the vehicle. An object is to provide a search method and a route search program.

  An electronic device according to the present invention includes an acquisition unit that acquires road data including identification information of a charging road that enables non-contact charging to a battery while the vehicle is traveling, an acquisition unit that acquires a remaining battery level, A storage means for storing charging information relating to charging of the battery when traveling on the charging road, a route searching means for searching for a route to the destination using the road data, and a purpose according to the search route by the route searching means Determining means for determining whether or not it is possible to travel from the remaining amount of the battery and / or the amount of charge to the destination when traveling to the ground, and the route search means When it is determined that traveling is impossible and the charging route is not included in the search route, a route that reaches the destination via the charging road can be re-searched.

  Preferably, the route search means determines that the travel is impossible by the determination means, and the route to reach the destination via the charging station when the search route includes the charging road. Search again. In addition, the determination unit calculates a battery consumption consumed on the search route based on road data when the search route does not include a charging road, and if the search route includes a charging road, Calculation means for calculating the battery consumption consumed on the searched route based on the road data and the charging information of the charging road is included.

  Preferably, the charging information includes an amount of charge to the battery when traveling on a charging road in the past, and the route search means re-searches for a route that can travel to a destination in consideration of the amount of charge. To do. The charging information includes an estimated charging amount when the vehicle has not traveled on the charging road in the past, and the route search means re-searches a route that can travel to the destination in consideration of the estimated charging amount. Further, the charging information includes a charging amount associated with the traveling speed information, and the route search means re-searches a route that can travel to the destination in consideration of the charging amount corresponding to the selected traveling speed information. To do.

  Preferably, the route search means selects travel speed information based on traffic jam information. The charge information includes a charge amount associated with an initial battery remaining amount, and the route search means takes into account a charge amount corresponding to the initial battery remaining amount selected based on the current battery remaining amount of the vehicle. Search again for routes that can travel to the destination. Furthermore, the route search means searches for a charging road existing within a first distance from the searched route, and cannot reach the destination even when traveling on the charging road existing within the first distance. In this case, a charging road existing within a second distance larger than the first distance is searched.

  The electronic device according to the present invention associates with the detection means for detecting charging of the battery, and identification information for identifying that the currently running road is the charging road when the charging of the battery is detected. And a storage means for storing and a creation means for creating charging information relating to the charging of the battery in association with the charging road, and enabling a non-contact charging to the battery while the vehicle is running Route guidance can be performed using.

  The electronic system according to the present invention includes the electronic device and a server that distributes map data to the electronic device, and the acquisition means can acquire the road data from the server.

  The route search method according to the present invention stores charging information related to charging a battery when traveling on a charging road that enables non-contact charging to the battery while the vehicle is traveling, and identifies the charging road. When the route to the destination is searched using road data including, and the vehicle is driven to the destination according to the searched route, it is determined whether or not the destination can be driven from the remaining amount of the battery and / or the amount of charge. When it is determined that traveling to the ground is impossible and the charging route is not included in the searched route, the route that reaches the destination via the charging road is re-searched and traveling is impossible. If the charging route is included in the searched route, the method includes a step of re-searching for a route that reaches the destination via the charging station.

  Preferably, the determining step calculates the battery consumption consumed on the search route based on road data when the search route does not include a charging road, and if the search route includes a charging road. And calculating the battery consumption consumed on the searched route based on road data and charging information on the charging road.

  Preferably, the charging information includes a charge amount to the battery when traveling on a charging road in the past, and the re-searching step re-establishes a travelable route to the destination in consideration of the charge amount. Explore. The charging information includes an estimated charging amount when the vehicle has not traveled on the charging road in the past, and the re-searching step re-searches a route that can travel to the destination in consideration of the estimated charging amount. Further, the charging information includes a charge amount associated with the travel speed information, and the re-searching step can travel to the destination in consideration of the charge amount corresponding to the travel speed information selected based on the traffic jam information. Re-search for a simple route.

  The route search program according to the present invention stores charging information related to charging a battery when traveling on a charging road that enables non-contact charging to the battery while the vehicle is traveling, and identifies the charging road. When the route to the destination is searched using road data including, and the vehicle is driven to the destination according to the searched route, it is determined whether or not the destination can be driven from the remaining amount of the battery and / or the amount of charge. When it is determined that traveling to the ground is impossible and the charging route is not included in the searched route, the route that reaches the destination via the charging road is re-searched and traveling is impossible. And when the searched route includes the charging road, the method includes the step of re-searching the route to reach the destination via the charging station, and is executed by the electronic device

  Preferably, the determining step calculates the battery consumption consumed on the search route based on road data when the search route does not include a charging road, and if the search route includes a charging road. And calculating the battery consumption consumed on the searched route based on road data and charging information on the charging road. Further, the charging information includes a charge amount of the battery when traveling on a charging road in the past, and the re-searching step re-searches a route that can be traveled to a destination in consideration of the charge amount. To do. Further, the charging information includes an estimated charge amount when the vehicle has not traveled on a charging road in the past, and the re-searching step re-searches a route that can travel to a destination in consideration of the estimated charge amount.

  ADVANTAGE OF THE INVENTION According to this invention, the path | route which can drive | work to the destination can be searched in consideration of a charging road based on the battery remaining amount of the electrical storage battery mounted in the vehicle. As a result, the user can drive the vehicle to the destination without worrying about the remaining battery level.

It is an image figure explaining the charging system by wireless type charging. It is a block diagram which shows the structure of the navigation apparatus which concerns on the Example of this invention. It is a figure which shows an example of the charge information matched with the link data by the Example of this invention. It is a block diagram which shows the functional structure of the route search program which concerns on the Example of this invention. It is a figure explaining the calculation method of the battery consumption by the Example of this invention. It is a figure which shows the road search range by the charge road search means which concerns on the Example of this invention. It is a flowchart explaining operation | movement of the navigation apparatus based on the Example of this invention. It is a figure which shows the example of a display of the search path | route by the Example of this invention.

  Next, embodiments of the present invention will be described in detail with reference to the drawings. The electronic device of the present invention may be any one that is fixedly mounted on a moving body such as an electric vehicle (EV), that can be brought into the moving body by a user, or that can be detached from the moving body. Good. The electronic device of the present invention is equipped with a navigation function, but other functions such as a function for reproducing audio / video data, a function for receiving television / radio broadcasts, a function for executing application software, and the like are integrated. It may be provided. In a preferred embodiment, the electronic device is connected to a communication bus in the vehicle or a bus equivalent thereto, and acquires information such as a remaining battery level and a charge amount of a storage battery mounted on the vehicle via the communication bus. It has a function. Furthermore, the electronic device of the present invention may itself store road map data for executing a navigation function in a storage device, or may be necessary from a distribution site or a distribution server via a data communication means. Road map data may be acquired. In the following description, a navigation device mounted on a vehicle is illustrated as an example of an electronic device.

  The navigation device is mounted on, for example, a vehicle called an electric vehicle (EV) or a plug-in hybrid vehicle (PHV) that uses electric energy stored in a storage battery during travel. Charging storage batteries is usually done by using charging facilities installed in public areas such as parking lots, accommodation facilities, commercial facilities, and at homes, and can be charged by connecting a dedicated charging cable to the charging port of the vehicle. Done. In addition to connection-type charging using such a charging cable, the charging method can be wireless-type charging in which charging is performed wirelessly. For a charging device (power transmission device) used for wireless charging, for example, a power feeding method such as an electromagnetic induction method, a magnetic field resonance method, or a microwave method is adopted, and a storage battery can be charged wirelessly. .

  FIG. 1 is an image diagram illustrating a charging system using wireless charging. The vehicle 10 is equipped with a storage battery 20 that can store electrical energy. The storage battery 20 is charged with electrical energy obtained from the power receiving unit 22 that receives electrical energy. On the other hand, a large number of power transmission devices 32 are embedded in the road surface of a road 30 called a charging lane or a charging road (hereinafter collectively referred to as a charging road) along the traveling lane. When the vehicle 10 travels on a charging lane in which a large number of power transmission devices 32 are arranged and passes over the power transmission device 32, the storage battery 20 is charged via the power receiving unit 22. Such a charging system can be used in a parking space as well as a charging road.

  FIG. 2 is a block diagram showing the configuration of the navigation device according to the embodiment of the present invention. The navigation device 100 includes a position information acquisition unit 102 that acquires own vehicle position information, a traffic information acquisition unit 104 that acquires road traffic information such as traffic jams and traffic restrictions, a user input unit 106 that receives input from a user, and an external and wired connection Or the data communication part 108 which enables wireless data communication, the display part 110 which displays a road map etc. on a display, the audio | voice output part 112 which outputs an audio | voice, the memory | storage part 114 which memorize | stores road map data and various programs, in-vehicle communication An external interface (I / F) 116 that enables connection to a bus and external devices, and a control unit 118 that controls each unit are configured. The configuration shown here is an example, and the navigation device is not necessarily limited to such a configuration.

  The position information acquisition unit 102 is mounted on a vehicle such as a gyro sensor or an acceleration sensor that detects the absolute position of the host vehicle using a signal transmitted from a GPS satellite 136 (see FIG. 2B), for example. The relative position of the vehicle can be detected from various sensors. Further, as shown in FIG. 2B, the position information acquisition unit 102 can access the position information distribution site (or distribution server) 130 via the network 120 and acquire the vehicle position information therefrom. . In this case, connection to the network 120 is performed via the data communication unit 108.

  The traffic information acquisition unit 104 acquires, for example, road traffic information superimposed on FM radio broadcasts or other broadcast waves, or receives road traffic information by radio communication from an antenna installed on a roadside such as a main road or an expressway. Can be acquired. Further, as shown in FIG. 2B, the traffic information acquisition unit 104 can access a road traffic information distribution site (or distribution server) 134 via the network 120 and acquire road traffic information therefrom. . In this case, connection to the network 120 is performed via the data communication unit 108.

  The user input unit 106 provides an interface between the user and the navigation device 100. The user input unit 106 can include an input key device, a touch panel, a voice recognition device, and the like. The data communication unit 108 enables wired or wireless data communication using WiFi, LAN, infrared communication, a telephone line, or the like. The data communication unit 108 may have a built-in function in the navigation device, or may use a communication function by externally connecting a mobile phone or a smartphone. As described above, the data communication unit 108 can be connected to various data distribution sites via the network 120 as shown in FIG.

  The display unit 110 displays a road map for guiding a guidance route to a destination, a search result such as facility search, a menu screen for various settings of the navigation device, and preferably a touch panel compatible display or the like. Including. The audio output unit 22 includes a speaker that outputs guidance route guidance, various warnings, and the like.

  The storage unit 114 stores road map data necessary for the operation of the navigation device 100, charging information related to the charging road, and the like. In one example, the storage unit 114 includes a large-capacity storage device, and a database such as road map data and facility data can be stored therein. In another example, the storage unit 114 can access the road map data distribution site 132 via the network 120 as shown in FIG. 2B, and acquire necessary road map data and the like therefrom. In this case, connection to the network 120 is performed via the data communication unit 108.

  In this embodiment, charging information related to charging when the vehicle travels on the charging road is sequentially stored in the storage unit 114. FIG. 3 is an example of charging information created when traveling on a charging road. This charging information is travel history data stored in association with link data or the like when the vehicle has traveled on the charging road in the past. It is. In a preferred embodiment, when the charging of the battery being traveled is detected via the external I / F 116, or based on the position of the vehicle obtained from the position information acquisition unit 102, the currently traveling road is a charging road. When is identified, charging information is created. The charging information is managed by the charging log ID, and one charging log ID includes information such as link data, feeding distance, traveling speed when traveling on the charging road, and actual charging amount (increase in remaining battery level). Including. Furthermore, the charging information can also be stored in association with information such as the date and time of charging and the road congestion status acquired from the traffic information acquisition unit 104.

  In addition, it is known that the charging efficiency of the battery is generally remarkably changed depending on the environment. For this reason, in the charging information, for example, data related to the initial remaining battery level and the charging period at the start of charging may be held. Furthermore, the charging information may be calculated and held for each charging road or link data by calculating a minimum charging amount, a maximum charging amount, an average charging amount, a charging amount at the time of previous travel, and the like. Further, in the example of FIG. 3, one charging log ID is created for each single link data, but when traveling on a charging road across a plurality of links, one charging log ID has a plurality of link IDs. It may be included.

  The external interface 116 is connected to an in-vehicle communication bus or the like in addition to connection to an external device, and is connected to a storage battery (battery) 20 that stores electrical energy, a power receiving unit 22 that receives electrical energy from a power transmission device 32, and the like. Is done. Thereby, the control unit 118 can detect information related to the battery state such as the start time and end time of charging the battery from the power receiving unit 22, the amount of charged power, and the remaining battery level.

  In a preferred embodiment, the control unit 118 includes a microcontroller including a ROM, a RAM, and the like, and the ROM or the RAM can store various programs for controlling the operation of each unit of the navigation device. The program includes, for example, a program that searches for a destination or waypoint in consideration of the remaining battery level and a program that creates charging information related to a charging road.

  The route search program is a program that searches for an optimum route to the destination, and can search for a route that can travel to the destination according to the battery state of the vehicle. This program is executed in conjunction with various functions of the navigation device. In a preferred aspect of the present embodiment, the route search program searches for a route that passes through the charging road when it is difficult to reach the destination in consideration of the current remaining battery level. At this time, the route search program searches for a charging road in the vicinity of the searched route, and searches for a route capable of traveling to the destination based on the charging information and the remaining battery level regarding the searched charging road. it can. The route search program may be automatically executed based on the current battery level, may be executed in response to an instruction from the user, and a route to the destination is set. It may be executed when the user is on or when the guidance is being given.

  FIG. 4 shows a functional configuration of the route search program according to this embodiment. As shown in FIG. 4, the route search program 200 is searched for a route search unit 202 that searches for a route to a destination using road map data, a battery remaining amount acquisition unit 204 that acquires a remaining battery amount of the vehicle, A battery consumption calculation means 206 for calculating the battery consumption on the route, a travelability determination means for comparing the acquired remaining battery level with the calculated battery consumption and determining whether or not the vehicle can travel to the destination. 208, when it is determined that traveling to the destination is impossible, charging road search means 210 for searching for a charging road existing within a certain range based on the searched route, charging information extracted to charging information regarding the charging road The extraction unit 212 includes a route candidate presentation unit 214 that presents a plurality of searched routes to allow the user to select a route.

  The route search means 202 searches for the optimum route from the current location or a specified point to the destination. The route searching means 202 re-searches for a route that can travel to the destination via the charging road or the charging station when it is determined that traveling from the remaining battery level to the destination is impossible. be able to. The battery remaining amount acquisition unit 204 acquires the remaining amount information of the battery 20 via the external interface 114 when a route search is performed.

  The battery consumption calculation means 206 calculates the battery consumption necessary for traveling to the destination based on the searched route. Preferably, the battery consumption calculation means 206 calculates the battery consumption from the travel distance of the searched route when the searched route does not include the charging road, and charges by the charging road when the searched route includes the charged road. The battery consumption is calculated in consideration of the charged amount.

  5A and 5B are diagrams for explaining a battery consumption calculation method. FIG. 5A illustrates a search route that does not include a charging road, and FIG. 5B illustrates a search route that includes a charging road. In FIG. 5A, the search route R is composed of a link A, a link B, and a link C, and the search route R does not include a charging road. In such a case, the battery consumption calculation means 206 obtains the battery consumption necessary for traveling on the link A, the link B, and the link C, respectively, and calculates the sum of these three battery consumptions, thereby searching. A battery consumption amount related to the path R is calculated. Specifically, the required electric capacity per unit distance is prepared for each of a plurality of travel speeds, and the battery consumption per link is calculated from the assumed travel speed and the distance data held by the link data.

  In FIG.5 (b), the search route R is comprised from the link A, the link B, and the link C, and the link B contains the charging road 230 in the part. In such a case, the battery consumption calculation means 206 can calculate the battery consumption from the difference between the total battery consumption of link A, link B, and link C and the charge amount related to the charging road 230. .

  The travel possibility determination unit 208 compares the remaining battery level acquired by the remaining battery level acquisition unit 204 with the battery consumption amount required for traveling on the searched route calculated by the battery consumption amount calculation unit 206. It can be determined whether or not it is possible to travel to the ground.

  The charging road search unit 210 searches for a charging road within a certain distance range based on the searched route when the driving possibility determination unit 206 determines that driving is impossible. At this time, the charging road search area may be automatically set in advance, or may be set as appropriate by the user, for example, 1 km, 2 km and 5 km from the search route. A plurality of search ranges may be set. Further, the charging road search area is not limited to a certain distance range, and may be a time range such as a 10-minute range or a 15-minute range.

  FIG. 6 is a diagram for explaining the search range of the charging road. FIG. 6 shows a search route R from the vehicle position S of the vehicle to the destination G. In order to search for charging roads around the search route R, a search area E1 that is a fixed distance range along the search route R and a search area E2 that is wider than the search area E1 are set. The charging road search means 210 can first search the charging road 230A from the charging road search area E1 based on the road map data. Further, the charging road search means 210 determines that there is no charging road in the search area E1, or when charging cannot be expected even if the charging road exists (that is, it is determined that traveling to the destination is impossible). The charging road 230B can be searched from a wider search area E2.

  When the charging road is searched, the charging information extracting unit 212 can extract the charging amount corresponding to the searched charging road based on the link ID of the charging information as shown in FIG. In addition, the extraction condition can be set in advance by the user. In this case, the charging information extraction unit 212 determines the amount of charge related to the searched charging road according to the extraction condition set by the user, for example, at the time of the previous travel. The charge amount, the average charge amount, or the minimum charge amount can be extracted. In addition to this, it is also possible to extract charging information such as a charging amount corresponding to the traveling speed of the vehicle and a charging amount corresponding to the initial battery remaining amount of the vehicle.

  In addition, when the charging information on the charging road searched by the charging road search unit 210 cannot be extracted, that is, when the charging road is not yet traveled and the charging information is not stored, the charging information is stored. The extraction unit 212 may supplement the estimated charging amount of the public charging road acquired from the road traffic information distribution site 134 or the like via the network 120 as charging information. Alternatively, the estimated charge amount may be stored as a default value for a charging road that has not yet traveled, and then the estimated charge amount is updated with the actual charge amount when traveling on the charging road. You may do it. In this way, the travel capability determination means 308 can determine whether travel to the destination is possible with reference to the actual charge amount or the estimated charge amount.

  The route candidate presenting means 214 can present, on the display unit 110, a route that is determined to be able to travel from the searched route to the destination as a guide route candidate. When there are a plurality of searched routes, the route is selected by the user's instruction. At this time, the route candidate presentation unit 214 can prioritize each route. For example, in the case of “importance on charge amount”, the search route that provides the most charge amount is highlighted and displayed. The

  Next, the operation of the navigation apparatus according to the present embodiment will be described with reference to the flowchart of FIG. Here, an example is shown in which an appropriate route is searched from the vehicle position to the destination according to the remaining battery level of the vehicle.

  When the user instructs a route search to the destination, the route search program 200 is activated, and the route search means 202 searches for a route from the vehicle position to the destination (S101). The route search means 202 searches for the optimum route from the vehicle position to the destination using the road map data. In response to the execution of the route searching unit 202, the remaining battery level is acquired by the remaining battery level acquiring unit 102 (S102).

  Next, the travel possibility determination means 208 determines whether or not travel to the destination is possible based on the acquired remaining battery level and the searched route (S103). Preferably, it is possible to reach the destination by comparing the acquired remaining battery amount with the battery consumption amount calculated for traveling on the searched route calculated by the battery consumption amount calculation unit 206. It is determined whether or not. If it is determined that traveling is possible, the process proceeds to step S110 described later, and the route is presented to the user as a route candidate.

  On the other hand, when it is determined that traveling to the destination is impossible on the searched route, the charging road search unit 210 determines whether or not the charging route is included in the searched route (S104). If it is determined that the charging road is included in the searched route, the route searching means 202 receives the determination result and re-searches the route via the charging station with reference to the road map data (S105). ). At the charging station, the battery 20 can be sufficiently charged, so that the destination can be reliably reached on the route passing through the charging station.

  Returning to step S104, if it is determined that the search route does not include the charging road, the charging road search means 210 uses the road map data as shown in FIG. A certain charging road is searched (S106). Here, when the charging road is not within a certain range, the charging road search area can be expanded.

  When the charging road is searched, the charging information extraction unit 212 extracts charging information regarding the corresponding charging road (S107). As described above, the charging information extracting means 212 is in accordance with the set extraction conditions, and desired information, for example, the amount of charge at the time of previous travel, the average charge amount, or the minimum charge amount, the travel speed of the vehicle when charged, Charging information such as the initial remaining battery level can be extracted.

  When the charging information is extracted, the route searching unit 202 searches again for a route using the charging road (S108). The re-searched search route is again determined by the travel possibility determination means 208 whether or not it is possible to travel to the destination (S109). At this time, since the re-searched path includes the charging road, the battery consumption amount calculation unit 206 calculates the battery consumption amount using the charging amount extracted by the charging information extraction unit 212, thereby In consideration of the amount of charge on the charging road, it is determined whether or not traveling to the destination is possible.

  FIG. 8 is a diagram illustrating a display example of a searched route that is determined to be able to travel to the destination. For example, the route candidate presenting unit 214 presents the search routes R1 and R2 determined to be able to travel to the destination in S109 to the user as route candidates. The search routes R1 and R2 can reach the destination via charging roads 230a and 230b having different charge amounts.

  The route candidate presenting means 214 presents, for example, the search route R1 passing through the charging road 230a having the shortest travel distance and arrival time as a recommended route to the user, but when the charging road 230b is compared with the charging road 230a, Since the power supply distance is long and the amount of charge is large, the search route R2 may be highlighted as a recommended route when the user makes a setting that emphasizes the amount of charge.

  Note that the searched route R3 in FIG. 8 is a route that was originally searched and it is determined that it is impossible to reach the destination from the remaining battery level, and thus it is not displayed as a route candidate on the display screen. It is also possible to select the search route R3 if desired.

  Next, a preferable extraction example when there are a plurality of charging information relating to the charging road will be described. When the same charging road is run a plurality of times, charging information (FIG. 3) corresponding to the number of times is created and stored in the storage unit 114. It is preferable that the charging information extraction unit 212 extracts charging information in an environment that is the same as or similar to the environment in which charging was performed in the past. Therefore, the charging information extraction unit 212 refers to the traffic information acquired from the traffic information acquisition unit 104, determines whether the charging road corresponds to congestion, congestion, or smooth running, and is closest to the determination result. Charging information is extracted when the battery is charged at the traveling speed. For example, the traffic speed is set such that the traveling speed is less than 10 km / h, the congestion is 10 km / h to 40 km / h, and the traveling is smoothly performed at 40 km / h or more, and charging information corresponding to or closest to them is extracted. Thereby, the calculation accuracy of the battery consumption amount by the battery consumption amount calculation unit 206 can be increased, and as a result, the determination accuracy by the travel capability determination unit 208 can be increased.

  In another aspect, it is desirable that the charging information extraction unit 212 extracts charging information when charging is performed in a state close to the current remaining battery level. This is because the charging characteristics of the battery may be such that the lower the remaining battery level, the faster the charging, while the higher the remaining battery level, the longer the charging time.

  In the above embodiment, when the vehicle travels on the charging road, the charging information related to charging the battery is stored in the storage unit of the navigation device. However, the present invention is not limited to this, and charging is performed on the server via the network. Information may be stored and charging information may be obtained from a server. In addition, the charging information on the untraveled charging road may be acquired from a server that distributes the charging information, or charging information stored in another vehicle may be acquired via inter-vehicle communication.

  Although the preferred embodiments of the present invention have been described in detail, the present invention is not limited to specific embodiments, and various modifications and changes can be made within the scope of the gist of the invention described in the claims. Is possible.

DESCRIPTION OF SYMBOLS 100: Navigation apparatus 102: Location information acquisition part 104: Traffic information acquisition part 106: User input part 108: Data communication part 110: Display part 112: Audio | voice output part 114: Storage part 116: External interface 118: Control part 120: Network 130 to 134: Distribution site 136: Satellite 200: Route search program 204: Battery remaining amount acquisition means 206: Battery consumption calculation means 208: Traveling possibility determination means 210: Charging road search means 212: Charging information extraction means 214: Route candidate Presentation means 230: Charging road

Claims (20)

An acquisition means for acquiring road data including identification information of a charging road that enables non-contact charging to a battery while the vehicle is running;
An acquisition means for acquiring the remaining amount of the battery;
Storage means for storing charging information related to charging the battery when traveling on the charging road;
Route search means for searching for a route to the destination using the road data;
Determining means for determining whether or not it is possible to travel from the remaining amount of the battery and / or the amount of charge to the destination when traveling to the destination according to the route searched by the route searching means;
The route searching means determines that the travel to the destination is impossible by the determining means, and the route that reaches the destination via the charging road when the searched route does not include the charging road Re-search for electronic devices. The route search means re-searches for a route that reaches a destination via a charging station when it is determined by the determination means that traveling is impossible and the search route includes the charging road. The electronic device according to claim 1. The determination means calculates a battery consumption amount consumed on the search route based on road data when the search route does not include a charging road, and if the search route includes a charging road, the search route The electronic device according to claim 1, further comprising a calculation unit that calculates the battery consumption consumed by the vehicle based on road data and charging information on the charging road. The charging information includes an amount of charge to the battery when traveling on a charging road in the past, and the route search means re-searches a route that can travel to a destination in consideration of the amount of charge. Item 2. The electronic device according to Item 1. The charging information includes an estimated charging amount when the vehicle has not traveled on a charging road in the past, and the route search means re-searches a route that can travel to a destination in consideration of the estimated charging amount. The electronic device according to 1. The charge information includes a charge amount associated with travel speed information, and the route search means re-searches a route that can travel to a destination in consideration of the charge amount corresponding to the selected travel speed information. The electronic device according to claim 1. The electronic device according to claim 6, wherein the route search means selects travel speed information based on traffic jam information. The charge information includes a charge amount associated with an initial battery remaining amount, and the route search means is configured to consider a charge amount corresponding to the initial battery remaining amount selected based on the current battery remaining amount of the vehicle. The electronic device according to claim 1, wherein a route that can travel to the ground is searched again. The route search means searches for a charging road existing within a first distance from the searched route, and when the destination cannot be reached even when traveling on the charging road existing within the first distance. The electronic device according to claim 1, wherein a charging road existing within a second distance larger than the first distance is searched. An electronic device capable of performing route guidance using a charging road that enables non-contact charging to a battery while the vehicle is running,
Detection means for detecting charging of the battery;
Storage means for storing, in association with the road, identification information for identifying that the currently running road is a charged road when charging the battery is detected;
Creating means for creating charging information related to charging the battery in association with the charging road;
An electronic device. An electronic device according to any one of claims 1 to 10,
A server for delivering map data to the electronic device,
The acquisition unit is an electronic system that acquires the road data from the server. A route search method in an electronic device,
Stores charging information related to charging the battery when traveling on a charging road that allows contactless charging to the battery while the vehicle is running,
Search for a route to the destination using road data including identification information of the charging road,
When traveling to the destination according to the searched route, determine whether the vehicle can travel to the destination based on the remaining battery charge and / or charge amount,
When it is determined that traveling to the destination is impossible and the charging route is not included in the searched route, the route that reaches the destination via the charging road is re-searched and traveling is impossible. A route search method including a step of re-searching a route that reaches a destination via a charging station when it is determined that there is a charge road in the search route. The determining step calculates the battery consumption consumed in the search route based on road data when the search route does not include a charging road, and determines the search when the search route includes a charging road. The route search method according to claim 12, comprising a step of calculating a battery consumption amount consumed on the route based on road data and charging information of the charging road. The charging information includes a charge amount to the battery when traveling on a charging road in the past, and the re-searching step re-searches a route that can be traveled to a destination in consideration of the charge amount. The route search method according to claim 12. The charging information includes an estimated charge amount when the vehicle has not traveled on a charging road in the past, and the re-searching step re-searches a route that can travel to a destination in consideration of the estimated charge amount. Item 13. A route search method according to Item 12. The charging information includes a charge amount associated with the travel speed information, and the re-searching step is a route that can travel to the destination in consideration of the charge amount corresponding to the travel speed information selected based on the traffic congestion information. The route search method according to claim 12, wherein the route is searched again. A route search program executed by an electronic device,
Stores charging information related to charging the battery when traveling on a charging road that allows contactless charging to the battery while the vehicle is running,
Search for a route to the destination using road data including identification information of the charging road,
When traveling to the destination according to the searched route, determine whether the vehicle can travel to the destination based on the remaining battery charge and / or charge amount,
When it is determined that traveling to the destination is impossible and the charging route is not included in the searched route, the route that reaches the destination via the charging road is re-searched and traveling is impossible. A route search program including a step of re-searching a route that reaches a destination via a charging station when it is determined that there is a charge road in the search route. The determining step calculates the battery consumption consumed in the search route based on road data when the search route does not include a charging road, and determines the search when the search route includes a charging road. 18. The route search program according to claim 17, further comprising a step of calculating a battery consumption amount consumed by the route based on road data and charging information of the charging road. The charging information includes a charge amount to the battery when traveling on a charging road in the past, and the re-searching step re-searches a route that can be traveled to a destination in consideration of the charge amount. The route search program according to claim 17. The charging information includes an estimated charge amount when the vehicle has not traveled on a charging road in the past, and the re-searching step re-searches a route that can travel to a destination in consideration of the estimated charge amount. Item 18. A route search program according to Item 17.

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