JP2019027859A - Travel assisting device and computer program - Google Patents

Abstract

To provide a travel assisting device and a computer program with which it is possible to exclude from guidance objects a facility that is likely to cause trouble to traveling to a destination when the vehicle stops in.SOLUTION: The present invention is configured in such a way that when a vehicle travels an express highway and a schematic expressway drawing 62 in which facilities on the express highway are arranged in increasing order of distance from the current position of the vehicle is displayed on a liquid crystal display 15, a guidance route to the destination of the vehicle is acquired, and a facility among the facilities present along the express highway that has no route connecting to the guidance route from an exit ramp for exiting the facility is excluded from those displayed in the schematic expressway drawing 62.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a driving support apparatus and a computer program for guiding facilities on an expressway.

  2. Description of the Related Art In recent years, a navigation device is often mounted on a vehicle that provides vehicle travel guidance so that a driver can easily arrive at a desired destination. Here, the navigation device detects the current position of the vehicle by a GPS receiver or the like, acquires map data corresponding to the current position through a recording medium such as a DVD-ROM or HDD or a network, and displays it on a liquid crystal monitor. It is a device that can do. Further, in such a navigation device, particularly when the vehicle travels on an expressway, facilities on the expressway (for example, a parking area, a service area, an interchange, etc.) are displayed side by side in ascending order of distance from the current position of the vehicle. The guide map (hereinafter referred to as a high-speed schematic diagram) is also displayed. Moreover, the said function is performed also in the various apparatuses which have navigation functions, such as a smart phone, besides a navigation apparatus.

  When displaying the high-speed schematic diagram, it is necessary to specify a facility to be displayed in the high-speed schematic diagram using the current position of the vehicle and map information. For example, in Japanese Patent Application Laid-Open No. 2005-315629, a link connected further beyond a connecting road link branched from a main road of a highway on which a vehicle travels is tracked, and the link to SA (service area) or PA (parking area) is performed. There has been proposed a technique for displaying an SA or PA corresponding to an SA / PA link when an SA / PA link that is a taxiway is connected.

Japanese Patent Laying-Open No. 2005-315629 (page 5-6, FIG. 2)

  Here, according to the technique described in Patent Document 1, for example, as shown in FIG. 12, when the vehicle 101 travels on a highway, the vehicle is on the guide route 102 to the destination. In addition to “XXIC” and “XXIC”, “○ × SA” connected to the branching link 103 is also displayed as a high-speed schematic diagram. As a result, as shown in FIG. 13, in the high-speed schematic diagram 104 displayed on the navigation device mounted on the vehicle 101, “XX IC”, “XX SA”, and “XX IC” are displayed in order from the vehicle 101. Will be displayed.

  However, since the direction in which the highway can travel is determined in advance, once the vehicle enters the SA or PA ahead of the connecting road link 103 branched as shown in FIG. You may not be able to return to. Nevertheless, in the above-mentioned Patent Document 1, since the SA and PA ahead of the branched connection path link 103 are also displayed, as a result of the user entering the SA or PA with reference to the high-speed schematic diagram 104, the guidance path There was a possibility that an event could occur without returning to 102.

  The present invention has been made in order to solve the above-described conventional problems. When a vehicle travels on a highway, the vehicle stops at a destination among the facilities on the highway. It is an object of the present invention to provide a driving support device and a computer program that can exclude facilities that are likely to occur from guidance targets.

In order to achieve the above object, the driving support apparatus according to the present invention provides a guidance for displaying facilities on a highway in order of increasing distance from the current position of the vehicle on a display device when the vehicle is traveling on a highway. Figure display means, and route acquisition means for acquiring a guide route to the destination of the vehicle, wherein the guide map display means guides the guide from an exit path for exiting from the facility. Facilities that do not have a route connected to the route are excluded from the display target.
The “facility on the expressway” means other facilities such as an attachment road with respect to the expressway in addition to facilities (eg, interchanges, junctions) on the expressway (that is, a part of the expressway). It is also included for highways by connecting via roads.
“Highway” includes not only highway national highways but also urban highways and exclusive roads.

  The computer program according to the present invention is a program for guiding facilities on a highway when the vehicle travels on the highway. Specifically, when the vehicle travels on an expressway, the computer displays guidance map display means for displaying facilities on the expressway in order of increasing distance from the current position of the vehicle on the display device, and the vehicle And function as route acquisition means for acquiring a guide route to the destination. In addition, the guide map display means excludes from the display objects facilities that do not have a route that connects the exit route for exiting from the facility to the guide route.

  According to the driving support apparatus and the computer program according to the present invention having the above-described configuration, when a vehicle travels on an expressway, the vehicle stops at a destination among the facilities on the expressway. It is possible to exclude facilities with high possibility from guidance targets. As a result, it is possible to prevent a user who has seen the facility displayed on the display device from entering the wrong route.

It is the block diagram which showed the navigation apparatus which concerns on this embodiment. It is a flowchart of the driving assistance processing program concerning this embodiment. It is a figure explaining the case where there is no branch in the main line of the highway where a vehicle drive | works. It is a figure explaining the case where there is a branch on the main line of the highway on which the vehicle travels. It is a figure explaining the tracking method of a branch link. It is the figure explaining the tracking method of the link from the exit route of a facility. It is the figure shown about the case where the link tracked from the exit route of the facility is not connected to the guide route. It is the figure which showed the high-speed schematic diagram displayed on a liquid crystal display in the case of FIG. It is the figure shown about the case where the link tracked from the exit route of a facility connects to a guidance route. It is the figure shown about the case where the link tracked from the exit route of a facility connects to a guidance route. It is the figure which showed the high-speed schematic displayed on a liquid crystal display in the case of FIG. 9 or FIG. It is a figure explaining the problem of the prior art. It is a figure explaining the problem of the prior art.

  DETAILED DESCRIPTION Hereinafter, a driving support device according to the present invention will be described in detail with reference to the drawings based on an embodiment in which the navigation device is embodied. First, a schematic configuration of the navigation device 1 according to the present embodiment will be described with reference to FIG. FIG. 1 is a block diagram showing a navigation device 1 according to this embodiment.

  As shown in FIG. 1, the navigation device 1 according to the present embodiment includes a current position detection unit 11 that detects a current position of a vehicle on which the navigation device 1 is mounted, a data recording unit 12 that records various data, Based on the input information, the navigation ECU 13 that performs various arithmetic processes, the operation unit 14 that receives operations from the user, the liquid crystal display 15 that displays information about map images and facilities around the vehicle to the user, Communication is performed between a speaker 16 that outputs voice guidance related to route guidance, a DVD drive 17 that reads a DVD as a storage medium, and an information center such as a probe center or a VICS (registered trademark: Vehicle Information and Communication System) center. And a communication module 18.

Below, each component which the navigation apparatus 1 has is demonstrated in order.
The current position detection unit 11 includes a GPS 21, a vehicle speed sensor 22, a steering sensor 23, a gyro sensor 24, and the like, and can detect the current vehicle position, direction, vehicle traveling speed, current time, and the like. . Here, in particular, the vehicle speed sensor 22 is a sensor for detecting a moving distance and a vehicle speed of the vehicle, generates a pulse according to the rotation of the driving wheel of the vehicle, and outputs a pulse signal to the navigation ECU 13. And navigation ECU13 calculates the rotational speed and moving distance of a driving wheel by counting the generated pulse. Note that the navigation device 1 does not have to include all the four types of sensors, and the navigation device 1 may include only one or more types of sensors.

  The data recording unit 12 is also a hard disk (not shown) as an external storage device and a recording medium, and a driver for reading the map information DB 31 and a predetermined program recorded on the hard disk and writing predetermined data on the hard disk And a recording head (not shown). The data recording unit 12 may be configured by a memory card, an optical disk such as a CD or a DVD, instead of the hard disk. Further, the map information DB 31 may be stored in an external server, and the navigation device 1 may be configured to acquire by communication.

  Here, the map information DB 31 includes, for example, link data 33 relating to roads (links), node data 34 relating to node points, facility data 35 relating to facilities, map display data for displaying a map, intersection data relating to each intersection, and routes. It is a storage means in which search data for searching, search data for searching for points, and the like are stored.

  The link data 33 includes the width of the road to which the link belongs, the gradient, the cant, the bank, the road surface state, the number of lanes on the road, the number of lanes decreasing, The data representing the narrowing point, railroad crossing, etc., the corner, the radius of curvature, the intersection, the T-junction, the corner entrance and the exit, etc. The data representing the downhill road, the uphill road, etc. Regarding types, in addition to general roads such as national roads, prefectural roads and narrow streets, data representing toll roads such as highway automobile national roads, city expressways, automobile exclusive roads, general toll roads, and toll bridges are recorded. Furthermore, the link data 33 also includes information for identifying links included in roads connecting highways and ordinary roads, and roads connecting different highways as link links. In addition, an attachment road (entrance road) for entering a facility (for example, a service area or a parking area) on the expressway from the main road of the expressway, and an attachment road for exiting from the facility to the main road of the expressway Information for identifying each link included in the (exit route) as an SA / PA link is also included.

  The node data 34 includes actual road branch points (including intersections, T-junctions, etc.) and the coordinates (positions) of node points set for each road according to the radius of curvature, etc. Node attribute indicating whether a node is a node corresponding to an intersection, etc., a connection link number list that is a list of link numbers of links connected to the node, and an adjacency that is a list of node numbers of nodes adjacent to the node via the link Data relating to the node number list, the height (altitude) of each node point, and the like are recorded.

  Further, as the facility data 35, information related to a facility that is a departure place, a destination, a guidance target, and the like in the navigation device 1 is stored. For example, accommodation facilities such as hotels and inns, refueling facilities such as gas stations, commercial facilities such as shopping malls, supermarkets, shopping centers and convenience stores, entertainment facilities such as theme parks and game centers, restaurants and bars, and food and drinks such as taverns Information on facilities such as facilities, parking facilities such as public parking lots, transportation facilities, religious facilities such as temples and churches, public facilities such as museums and museums, and the like. In particular, in the present embodiment, information relating to facilities on the expressway (hereinafter referred to as expressway facilities) is also stored. Here, as expressway facilities, in addition to facilities (for example, interchanges and junctions) on the expressway (that is, a part of the expressway), other expressways such as attachment roads are connected to the expressway. This also includes facilities (for example, a service area and a parking area) that can be entered and exited from the expressway by being connected.

  The navigation ECU (Electronic Control Unit) 13 is an electronic control unit that controls the entire navigation device 1. The CPU 41 as an arithmetic device and a control device, and a working memory when the CPU 41 performs various arithmetic processes. Read out from the ROM 43 and the ROM 43 in which a RAM 42 that stores route data when the route is searched, a control program, a driving support processing program (FIG. 2) described later, and the like are recorded. An internal storage device such as a flash memory 44 for storing the program is provided. The navigation ECU 13 has various means as processing algorithms. For example, when the vehicle travels on an expressway, the guide map display means displays the facilities on the expressway on the liquid crystal display 15 in order from the closest distance from the current position of the vehicle. The route acquisition means acquires a guide route to the destination of the vehicle.

  The operation unit 14 is operated when inputting a starting point as a travel start point and a destination as a travel end point, and has a plurality of operation switches (not shown) such as various keys and buttons. Then, the navigation ECU 13 performs control to execute various corresponding operations based on switch signals output by pressing the switches. The operation unit 14 can also be configured by a touch panel provided on the front surface of the liquid crystal display 15. Moreover, it can also be comprised with a microphone and a speech recognition apparatus.

  Further, the liquid crystal display 15 includes a map image including a road, high-speed schematic diagram, traffic information, operation guidance, operation menu, key guidance, guidance route from the departure point to the destination, guidance information along the guidance route, news, Weather forecast, time, mail, TV program, etc. are displayed. In place of the liquid crystal display 15, HUD or HMD may be used.

  The speaker 16 outputs voice guidance for guiding traveling along the guidance route based on an instruction from the navigation ECU 13 and traffic information guidance.

  The DVD drive 17 is a drive that can read data recorded on a recording medium such as a DVD or a CD. Based on the read data, music and video are reproduced, the map information DB 31 is updated, and the like. A card slot for reading / writing a memory card may be provided instead of the DVD drive 17.

  The communication module 18 is a communication device for receiving traffic information composed of information such as traffic jam information, regulation information, and traffic accident information transmitted from a traffic information center, for example, a VICS center or a probe center. For example, a mobile phone or DCM is applicable.

  Next, a driving support processing program executed by the navigation ECU 13 in the navigation device 1 having the above configuration will be described with reference to FIG. FIG. 2 is a flowchart of the driving support processing program according to this embodiment. Here, the driving support processing program is executed after the ACC power supply (accessory power supply) of the vehicle is turned on, and guides the facility on the highway by displaying a high-speed schematic diagram when the vehicle travels on the highway. It is a program. Note that the program shown in the flowchart of FIG. 2 below is stored in the RAM 42 and the ROM 43 provided in the navigation device 1 and is executed by the CPU 41.

  First, in step (hereinafter abbreviated as S) 1 in the driving support processing program, the CPU 41 acquires the current position of the vehicle based on the detection result of the current position detection unit 11. A map matching process for specifying the current position of the vehicle on the link is also performed.

  Next, in S2, the CPU 41 determines whether or not the vehicle is traveling on a highway based on the current position of the vehicle specified in S1 and the map information. The expressway includes a city expressway and an automobile exclusive road in addition to the expressway national highway.

  If it is determined that the vehicle is traveling on the highway (S2: YES), the process proceeds to S3. On the other hand, when it is determined that the vehicle is not traveling on the highway (S2: NO), the traveling support processing program is terminated.

  In S3, the CPU 41, based on the current position of the vehicle specified in S1 and the map information, within the predetermined distance ahead of the traveling direction from the current position of the vehicle (for example, within 100 km), the main line of the highway on which the vehicle runs. It is determined whether or not there is a link that branches (hereinafter referred to as a branch link). As links corresponding to the branch links, there are “link links” and “SA / PA links”.

  Here, the “connection road link” corresponds to a link included in a road connecting a highway and a general road, and a road connecting different highways. The “SA / PA link” is an attachment road (entrance road) for entering a facility (for example, a service area or a parking area) on the expressway from the expressway main line, and the expressway main line from the facility. The link included in the attachment road (exit road) for exiting to corresponds.

  If it is determined that there is a branch link within a predetermined distance ahead of the traveling direction from the current position of the vehicle (S3: YES), the process proceeds to S5. On the other hand, when it is determined that there is no branch link within a predetermined distance ahead of the traveling direction from the current position of the vehicle (S3: NO), the process proceeds to S4.

  In S4, the CPU 41 searches for facility information of facilities on the main line of the expressway on which the vehicle travels based on the map information. Specifically, the facility (for example, interchange, junction) on the main line of the highway on which the vehicle runs is searched.

  For example, as shown in FIG. 3, when the vehicle 51 travels on an expressway without a branching link, “OO IC” on the main line 52 of the expressway is a search target. The facility information search in S4 is performed within a predetermined distance (for example, within 100 km) ahead of the traveling direction from the current position of the vehicle. Thereafter, the process proceeds to S13. In S13, as will be described later, a high-speed schematic diagram displaying information on the facility searched in S4 is displayed on the liquid crystal display 15.

  On the other hand, in S5, the CPU 41 searches for facility information of facilities on the main road of the expressway on which the vehicle travels and a branch link branched from the main line based on the map information. Specifically, facilities on main roads and branch links of highways where vehicles travel (for example, interchanges and junctions), and facilities that allow entry and exit from main roads of highways via branch links (for example, service areas and parking areas) ) A facility that can be entered and exited from the main road of the expressway via a branch link is a facility in which an SA / PA link is directly connected to the main road of the expressway (a facility that can enter and leave the SA / PA link). ) Is applicable. When there are a plurality of branch links, the facility information is searched for each of the plurality of branch links.

  For example, as shown in FIG. 4, when the vehicle 51 travels on a highway with a branch link, “OO IC” on the main line 52 of the highway and the SA / PA link 53 are connected to the main line 52. It becomes a search object about “○ × SA”. The facility information search in S5 is performed within a predetermined distance (for example, within 100 km) ahead of the traveling direction from the current position of the vehicle. Thereafter, the process proceeds to S6.

  In S <b> 6, the CPU 41 performs tracking of links connected in the traveling direction with respect to the connecting road links, particularly for the connecting road links, among the branch links branched from the main road of the highway on which the vehicle travels. Further, when the link further branches in the traveling direction of the connection path link, tracking is performed for all branch destinations. The tracked range is, for example, 4 links along the traveling direction or within a predetermined distance (for example, within 10 km). For example, as shown in FIG. 5, when the connecting road link 54 is connected as a branch link to the main road 52 of the highway on which the vehicle 51 travels, the traveling direction (of FIG. Follow links connected in the direction of the arrow). As a result, the link 55 and the link 56 become tracking targets.

  Next, in S <b> 7, the CPU 41 acquires the link types of all the links tracked in S <b> 6 based on the link data 33. Note that the link types include “link link” and “SA / PA link”.

  Thereafter, in S8, the CPU 41 determines whether or not “SA / PA link” is included in the link tracked in S6, based on the link type acquired in S7. It should be noted that the determination target in S6 is an SA / PA link included in an attachment road for entering a facility such as a service area or a parking area from the main line. For example, as shown in FIG. 6, when the connecting road link 54 is connected to the main road 52 of the highway on which the vehicle 51 travels, the “○ × SA” is within the tracking range with respect to the connecting road link 54. When the SA / PA link 57 for entering is connected, it is determined that the “SA / PA link” is included in the link tracked in S6.

  If it is determined that the “SA / PA link” is included in the link tracked in S6 (S8: YES), the process proceeds to S9. On the other hand, if it is determined that the “SA / PA link” is not included in the link tracked in S6 (S8: NO), the process proceeds to S13. In S13, as will be described later, a high-speed schematic diagram displaying information on the facility searched in S5 is displayed on the liquid crystal display 15.

  In S <b> 9, the CPU 41 determines whether or not a guide route is set in the navigation device 1. The guidance route is a recommended route from the starting point (for example, the vehicle position) to the destination set by the navigation device 1, and is searched using, for example, a known Dijkstra method.

  And when it determines with the guidance route being set in the navigation apparatus 1 (S9: YES), it transfers to S10. On the other hand, when it is determined that the guidance route is not set in the navigation device 1 (S9: NO), the process proceeds to S12.

  In S10, the CPU 41 tracks the link connected in the traveling direction for the “SA / PA link” on the approach road side determined to be included in S8 and the “SA / PA link” on the exit road side of the same facility. Do. For example, as shown in FIG. 6, when the connecting road link 54 is connected to the main road 52 of the highway on which the vehicle 51 travels, the “○ × SA” is within the tracking range with respect to the connecting road link 54. When the SA / PA link 57 for entering is connected, the direction of travel (in the direction of the arrow in FIG. 6) is directed to the SA / PA link 58 for exiting from the “○ × SA” to the main line. Track links connected to. Further, when the link branches in the traveling direction of the “SA / PA link”, tracking is performed for all branch destinations. The tracking range is, for example, 10 links along the traveling direction or within a predetermined distance (for example, within 10 km) from the “SA / PA link”. Further, it is desirable not to track general roads, but to track only links included in expressways.

  Thereafter, in S11, the CPU 41 obtains the guide route set in the navigation device 1, and any link tracked in S10 becomes one of the links included in the guide route set in the navigation device 1. Determine whether to connect.

  If it is determined that any link tracked in S10 is connected to any link included in the guide route set in the navigation device 1 (S11: YES), the process proceeds to S12. . On the other hand, when it is determined that any link tracked in S10 is not connected to a link included in the guide route set in the navigation device 1 (S11: NO), the process proceeds to S13. In S13, as will be described later, a high-speed schematic diagram displaying information on the facility searched in S5 is displayed on the liquid crystal display 15.

  Therefore, in the above case, the SA / PA branching from the link of the facility corresponding to the “SA / PA link” determined to be included in S8, i.e., not branching from the main road of the highway on which the vehicle travels. Facilities entering through links are not subject to display in high-speed schematics. For example, as shown in FIG. 7, when it is not possible to connect to the main line 52 that is a guide route as a result of tracking in the traveling direction from the SA / PA link 58 for exiting from “○ × SA”, “○ × SA” Is not subject to display of high-speed schematics. Therefore, in the high-speed schematic diagram 62 displayed on the liquid crystal display 15 as shown in FIG. 8, only the name 63 of “XXIC” and the name 64 of “XXIC” are displayed. In the high-speed schematic diagram 62, the required time to reach and the distance to reach may be displayed in addition to the name of the facility.

  On the other hand, in S12, the CPU 41 determines the facility corresponding to the “SA / PA link” determined to be included in S8 based on the map information (the facility entering through the SA / PA link determined to be included in S8). Search for facility information. For example, in the example shown in FIG. 6, if the result of tracking in the traveling direction from the SA / PA link 58 for exiting from “◯ × SA” is the final connection to the guide route, “○ × SA” Search for facility information.

  Thereafter, in S13, the CPU 41 displays on the liquid crystal display 15 a high-speed schematic diagram that displays information on the facility searched in S5 and the facility searched in S12.

  Therefore, in the above case, the SA / PA branching from the link of the facility corresponding to the “SA / PA link” determined to be included in S8, i.e., not branching from the main road of the highway on which the vehicle travels. Facilities entering through links are also displayed in the high-speed schematic. For example, as shown in FIG. 9, as a result of tracing in the traveling direction from the SA / PA link 58 for exiting from “◯ × SA”, when connecting to the main line 52 which is a guide route, “○ × SA”. Is also a display target of a high-speed schematic diagram. As shown in FIG. 10, when a road is branched in the traveling direction of the SA / PA link 58, if at least one branched road is connected to the main line 52 which is a guide route, "○ × SA" It becomes the display target of the high-speed schematic. Therefore, in the high-speed schematic diagram 62 displayed on the liquid crystal display 15 as shown in FIG. 10, in addition to the name 63 of “XXIC” and the name 64 of “XXIC”, the name 65 of “XXSA” is also displayed. Is displayed. Note that the display order is closer to the current position of the vehicle. Further, in the high-speed schematic diagram 62, the required time to reach and the distance to reach may be displayed in addition to the name of the facility.

  As described above in detail, in the navigation device 1 and the computer program executed by the navigation device 1 according to the present embodiment, when the vehicle travels on the expressway, the distance between the facility on the expressway and the current position of the vehicle is When the high-speed schematic 62 displayed in the order of closeness is displayed on the liquid crystal display 15, a guidance route to the destination of the vehicle is obtained, and the exit route for exiting from the facility on the expressway Since facilities that do not have a route that connects to the guide route are excluded from the display target of the high-speed schematic diagram 62 (S13), facilities that are likely to interfere with traveling to the destination due to the stop of the vehicle are subject to guidance. Can be excluded. As a result, it is possible to prevent a user who has seen the facility displayed in the high-speed schematic diagram 62 from entering the wrong route.

Note that the present invention is not limited to the above-described embodiment, and various improvements and modifications can be made without departing from the scope of the present invention.
For example, in the present embodiment, the processing after S3 is executed when the vehicle travels on a highway, but the processing after S3 is executed when the vehicle travels on a high standard road or a high standard main road. May be. In addition, facilities other than the service area, parking area, interchange, and junction can be included as facilities to be displayed in the high-speed schematic diagram.

  In addition to the navigation device, the present invention can be applied to a device having a display function of a vehicle travel guidance screen. For example, the present invention can be applied to a navigation device, a mobile phone, a smartphone, a tablet terminal, and the like (hereinafter collectively referred to as a communication terminal). Further, the present invention can be applied to a system including a server and a communication terminal. In that case, each step of the above-described driving support processing program (FIG. 2) may be configured to be performed by either the server or the communication terminal.

  Moreover, although the embodiment which actualized the driving support device according to the present invention has been described above, the driving support device can also have the following configuration, and in that case, the following effects can be obtained.

For example, the first configuration is as follows.
When the vehicle travels on the expressway, the guide map display means (41) for displaying the facilities on the expressway in order from the closest distance from the current position of the vehicle to the display device (15), and the purpose of the vehicle Route acquisition means (41) for acquiring a guide route to the ground, and the guide map display means from the exit route (58) for exiting from the facility to the guide route. Facilities that do not have a route to be connected are excluded from the display target.
According to the driving support apparatus having the above-described configuration, when a vehicle travels on an expressway, guidance is provided for facilities that are likely to cause problems in traveling to the destination when the vehicle stops on the expressway. It can be excluded from the target. As a result, it is possible to prevent a user who has seen the facility displayed on the display device from entering the wrong route.

The second configuration is as follows.
The guide map display means (41) is a display target for facilities that do not have a route that connects the exit route (58) for exiting from the facility to the guide route through the expressway. Exclude from
According to the driving support apparatus having the above-described configuration, when a vehicle travels on an expressway, the vehicle must stop and move to the expressway again via a general road after the vehicle stops. It is possible to exclude facilities that are highly likely to interfere with traveling to a destination such as not to be a guidance target.

The third configuration is as follows.
Link tracking means (41) for tracking a link connected in the direction of travel from a link included in the exit path (58) of the facility, and the link tracked by the link tracking means is included in the guide route When not connected to the link, it is determined that there is no route connecting from the exit route of the facility to the guide route.
According to the driving support apparatus having the above-described configuration, when a vehicle travels on an expressway, the destination on the facility on the expressway cannot return to the original guide route after the vehicle stops. It is possible to exclude facilities that are likely to interfere with the traveling of the vehicle from guidance targets.

The fourth configuration is as follows.
When the link tracked by the link tracking means (41) does not connect to the link included in the guide route within a predetermined distance from the exit route (58), the link is connected from the facility exit route to the guide route. It is determined that the route does not exist.
According to the driving support apparatus having the above configuration, when a vehicle travels on an expressway, a destination such as a route to the destination becomes extremely detoured after the vehicle stops among facilities on the expressway. It is possible to exclude facilities that are likely to interfere with traveling until the guidance target.

The fifth configuration is as follows.
The facility on the expressway includes a service area or a parking area, and the exit path (58) is an attachment road for exiting from the service area or the parking area to the main road of the expressway.
According to the driving support apparatus having the above-described configuration, when a vehicle travels on an expressway, a service area or a parking area that is likely to cause a problem in traveling to the destination due to the stop of the vehicle is excluded from the guidance target. It becomes possible. As a result, it is possible to prevent a user who has seen the name of the service area or the parking area displayed on the display device from entering the wrong route.

1 Navigation device 13 Navigation ECU
15 Liquid crystal display 31 Map information DB
41 CPU
42 RAM
43 ROM
51 Vehicle 52 Main line 53, 57, 58 SA / PA link 54 Linkage link 62 High-speed schematic diagram

Claims (6)

When the vehicle travels on the expressway, guide map display means for displaying the facilities on the expressway on the display device in order of the distance from the current position of the vehicle,
Route acquisition means for acquiring a guide route to the destination of the vehicle,
The said guidance map display means is a driving | running | working assistance apparatus which excludes from the display object the facility in which the path | route connected to the said guidance route from the exit route for leaving from the said facility does not exist.   2. The guide map display means excludes, from among the facilities, facilities that do not have a route that connects the exit route for exiting from the facility to the guide route via a highway from the display target. The driving support device according to 1. Link tracking means for tracking a link connected in the direction of travel from a link included in the exit path of the facility;
3. The method according to claim 1, wherein when a link tracked by the link tracking unit is not connected to a link included in the guide route, it is determined that there is no route connecting from the exit route of the facility to the guide route. The driving support device according to 1.   When the link tracked by the link tracking means does not connect to the link included in the guide route within a predetermined distance from the exit route, it is determined that there is no route connecting from the facility exit route to the guide route. The travel support apparatus according to claim 3. The facility on the highway includes a service area or a parking area,
The travel support device according to any one of claims 1 to 4, wherein the exit road is an attachment road for exiting from the service area or the parking area to a main road of an expressway. Computer
When the vehicle travels on the expressway, guide map display means for displaying the facilities on the expressway on the display device in order of the distance from the current position of the vehicle,
A computer program for functioning as route acquisition means for acquiring a guide route to the destination of the vehicle,
The said guide map display means is a computer program which excludes from the display object the facilities in which the path | route connected to the said guide route from the exit route for leaving from the said facility does not exist.

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