JP2009093343A - Operation support information presentation device, program, and operation support information presentation method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an operation support information presentation device for presenting operation support information whose acceptability is high. <P>SOLUTION: This operation support information presentation device is configured to receive traveling object information showing the location and traveling direction of a traveling object traveling in a support intersection and a predicted path, and acquires own vehicle information showing the location and traveling direction of one's own vehicle (S205). Then, the predicted path of the self-vehicle is specified (S215), and the positional relation between the own vehicle and the traveling object is specified (S220). Then, until the vehicle passes a supported intersection (S235), the operation support information corresponding to the specified position relation is displayed (S230). <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a driving support information presentation device that presents driving assistance information, and a driving support information presentation method.

  There is known an apparatus for presenting information for supporting driving of a driver. For example, the vehicular display device described in Patent Literature 1 specifies a runway shape of a runway on which the host vehicle travels based on map information, calculates a runway position suitable for the host vehicle to pass a preceding vehicle, and Both the shape and the calculated track position are displayed. In addition, the vehicle display device described in Patent Document 2 specifies the shape of a traveling path on which the host vehicle travels based on map information, and the host vehicle decelerates based on the traveling path shape and the traveling speed of the host vehicle. The place to be driven is specified, and the running road shape and the place where the host vehicle should run at a reduced speed are displayed together. Further, in Patent Document 3, using a head-up display, driving support information (route guidance, dangerous object avoidance, visibility assistance) can be seen in the vicinity of a related feature or the like in the scenery seen from the front window. The driving support method to be displayed is described.

By using the vehicle display device and the driving support method described in these documents, the driver can obtain useful information for safe driving.
JP 2006-146362 A JP 2006-139510 A JP-A-9-35177

  However, the risk of traffic accidents greatly depends on the presence of other vehicles in the vicinity of the host vehicle. However, in the vehicle display devices and driving support methods described in the above-mentioned documents, the presence of other vehicles exists. Is not considered at all. Therefore, for example, when the oncoming vehicle is traveling in the opposite lane, the fact that it is a suitable road position for overtaking is displayed, and the presence of other vehicles makes it difficult to drive and slows down. There is a possibility that the driver cannot be shown where to drive. On the other hand, there is no vehicle running around the host vehicle or the course of the host vehicle, and although the risk of a traffic accident is low, a display that prompts deceleration more than necessary is displayed. Such a situation may occur. If such a situation occurs frequently, the driver may not trust the presented driving support information, and as a result, the driving support information useful for safe driving may be ignored.

  As described above, in the invention described in the above-described document, since the presence of other vehicles around the host vehicle is not taken into consideration, it is impossible for the driver to provide driving support information that is useful and highly receptive.

  The present invention has been made to solve the above problems, and presents driving support information that is useful and highly receptive to the driver by considering the presence of a moving body such as another vehicle around the host vehicle. An object of the present invention is to provide a driving support information presentation device that can perform the above-described operation.

  The driving support information presentation device according to claim 1, which has been made to solve the above-described problem, is based on moving body information including information indicating a position and a traveling direction of the moving body. Driving assistance information, which is information for avoiding traffic accidents occurring in the vehicle, is generated and presented to the driver. The driving support information presentation device includes mobile body information receiving means for receiving mobile body information of a mobile body existing around the host vehicle from outside the host vehicle, and information indicating a position and a traveling direction of the host vehicle. Including own vehicle information acquisition means for acquiring the own vehicle information from the outside of the own vehicle or from a device mounted on the own vehicle, and a presentation means for presenting various information to the user. In addition, the driving support information presentation device is configured to make relative movement between the mobile body and the host vehicle around the host vehicle based on the mobile body information received by the mobile body information receiving unit and the host vehicle information acquired by the host vehicle information acquisition unit. A positional relationship specifying process for specifying a positional relationship indicating a position and a relative course, and driving support information corresponding to the positional relationship specified in the positional relationship specifying process are generated, and the generated driving support information is displayed via a presentation unit. Control means for executing driving support information presentation processing presented to the driver is provided.

  Here, the moving body refers to other vehicles, pedestrians, etc., and the moving body information is information indicating the position and traveling direction of the moving body with reference to features such as intersections and the own vehicle, for example. Good to be. The moving body information receiving means may receive the moving body information detected by a detection device or the like installed in the vicinity of the road by road-to-vehicle communication, or the moving body information detected by another vehicle. May be received.

  The own vehicle information may be information indicating the position and traveling direction of the own vehicle with reference to a feature such as an intersection or a moving body, for example. And the own vehicle information acquisition means may acquire such own vehicle information from the outside of the own vehicle through road-to-vehicle communication, inter-vehicle communication, or the like, or from an apparatus mounted on the own vehicle. You may do it.

  In addition, the driving support information according to the positional relationship means, for example, presenting instructions or warnings with different contents depending on the positional relationship, or presenting information in a different manner depending on the positional relationship.

  In this way, it is possible to present appropriate driving assistance information for avoiding traffic accidents in consideration of moving objects existing around the host vehicle, so driving assistance information that is useful and highly receptive to the driver. Can be presented.

  Further, the driving support information presentation device according to claim 2 further includes moving body information acquisition means for acquiring moving body information of a moving body in the vicinity of the own vehicle from a device mounted on the own vehicle. In the positional relationship specifying process, the positional relationship between the moving body and the host vehicle in the vicinity of the host vehicle is specified in consideration of the moving body information acquired by the moving body information acquisition means.

Here, the moving body information acquired by the moving body information acquisition means is the moving body information of the moving body in the vicinity of the own vehicle, which is specified by a radar or a camera mounted on the own vehicle.
In some cases, the detection device installed near the road or the moving body information of a moving body existing in a range where other vehicles cannot be detected can be identified by a radar or the like mounted on the own vehicle. Moreover, the mobile body information specified by the radar etc. mounted in the own vehicle may be more accurate than the mobile body information received by road-to-vehicle communication or vehicle-to-vehicle communication.

  Therefore, by having such a configuration, it becomes possible to specify a positional relationship in a wider range, and it is possible to specify a more accurate positional relationship, which is more useful and more acceptable driving assistance. It becomes possible to present information.

In addition, more accurate positional relationship can be specified by taking into consideration the predicted course of the host vehicle or the moving body.
Accordingly, the driving support information presentation device according to claim 3 further includes an expected course specifying means for specifying the expected course of the host vehicle, and the control means is the host vehicle specified by the predicted course specifying means in the positional relationship specifying process. The positional relationship is specified in consideration of the expected course.

  Here, the predicted course may be, for example, the content of turning right at an intersection ahead, or may be a route shown in the route guidance of the navigation device. The predicted route specifying means may specify the predicted route from the vehicle state such as the operation state of the direction indicator, the traveling lane of the host vehicle, or the like. Further, the predicted course may be specified based on route information used in route guidance of the navigation device.

  In addition, the driving support information presentation device according to claim 4 further includes a moving body route information acquisition unit that acquires moving body route information indicating an expected route of the moving body, and the control unit moves in the positional relationship specifying process. The positional relationship is specified in consideration of the moving body course information acquired by the body course information acquisition means.

  By having the configuration according to claim 3 or claim 4, it is possible to specify a more accurate positional relationship, so the driving support information presentation device can present more accurate driving support information. It becomes.

The driving support information presentation device may have the following configuration.
6. The driving support information presenting apparatus according to claim 5, wherein the control means calculates a risk of occurrence of a traffic accident when the host vehicle travels a predetermined location based on the positional relationship specified by the positional relationship specifying process. In the driving support information presentation process, the driving assistance information corresponding to the risk calculated in the risk calculating process is generated in place of the positional relation specified in the positional specifying process. When the vehicle approaches a predetermined place, the generated driving support information is presented to the driver via the presenting means.

  By doing this, it is possible for the driver to calculate the degree of risk in consideration of the moving objects present in the vicinity of the host vehicle and present appropriate driving support information according to the degree of danger, which is useful and highly receptive to the driver. It is possible to present driving support information.

  The host vehicle information further includes information indicating the speed of the host vehicle, the moving body information further includes information indicating the speed of the moving body, and the control means includes the host vehicle and the moving body in the risk degree calculation process. The degree of danger may be calculated in consideration of the speed. The driving support information presentation device further includes map data acquisition means for acquiring map data of a predetermined location from the outside, and calculates the degree of risk in consideration of the road shape indicated by the map data acquired by the map data acquisition means. May be. This makes it possible to present driving assistance information that is more useful and more receptive.

  Moreover, the coping method for avoiding a traffic accident may differ with the timing until the own vehicle reaches | attains a predetermined place. Moreover, it can be said that the urgency of measures for avoiding traffic accidents differs depending on this timing.

  Therefore, the driving support information presentation device according to claim 6 further includes arrival interval specifying means for specifying an arrival interval that is an interval until the host vehicle reaches a predetermined location, and the control means provides the driving support information presentation In the processing, driving support information is generated in consideration of the arrival interval specified by the arrival interval specifying means.

  Here, the interval until the host vehicle reaches the predetermined location is, for example, the distance between the host vehicle and the predetermined location, or the remaining time until the host vehicle arrives at the predetermined location. The arrival interval specifying means, for example, acquires map data from the outside of the driving support information presentation device, specifies the current location of the host vehicle and the position of the predetermined location in the map indicated by the map data, and determines the current location of the host vehicle and the predetermined location. The arrival interval may be specified by obtaining the distance to the location. The arrival interval specifying means further acquires the speed of the host vehicle, and calculates the remaining time until the host vehicle reaches the predetermined location based on the distance between the host vehicle and the predetermined location and the speed of the host vehicle. The arrival interval may be specified by obtaining.

  By doing so, it is possible to present to the driver an optimum coping method for avoiding traffic accidents according to the arrival interval. In addition, the driving support information can be presented in a manner corresponding to the degree of urgency based on the arrival interval.

  Moreover, in the driving assistance information presentation device according to claim 6, the driving assistance information presented to the driver can be switched according to the arrival interval, but the optimal timing for switching the driving assistance information is It may be different depending on traffic conditions.

  Therefore, in the driving support information presentation device according to claim 7, the control means converts the driving support information presented through the presenting means into new driving support information according to the arrival interval specified by the arrival interval specifying means. The timing specifying process for specifying the switching timing, which is the timing for switching to, based on the positional relationship specified in the positional relationship specifying process is further executed. In the driving support information presentation process, when the arrival interval specified by the arrival interval specifying means reaches the switching timing specified in the timing specifying process, the driving support information corresponding to the arrival interval is displayed via the presenting means. Present.

  In this way, new driving support information can be presented at the optimal timing in consideration of the positional relationship between the host vehicle and the moving body, and thus more useful and more acceptable driving support information is presented. It becomes possible to do.

  In addition, various types of scenes can be assumed as scenes in which traffic accidents occur. However, in order to avoid traffic accidents, the driver must take different measures depending on these scenes.

  Therefore, in the driving support information presentation device according to claim 8, the control means predicts a traffic accident scene that is most likely to occur at a predetermined location based on the positional relationship specified in the positional relationship specifying process. A scene prediction process is further executed, and in the driving support information presentation process, driving support information is generated in consideration of the traffic accident scene predicted by the traffic accident scene prediction process.

  By doing so, the driving support information presentation device can present driving support information according to the scene of the traffic accident, and the driver can obtain more useful and more acceptable driving support information. .

  Also, as specific examples of traffic accident scenes, at the intersection, a collision scene at the time of a right turn that is a traffic accident scene that the host vehicle encounters when making a right turn, a collision scene at the time of a left turn that is a scene of a traffic accident that the host vehicle encounters when making a left turn, An encounter collision scene that is a scene of a traffic accident that collides with a vehicle that enters the intersection from an intersection road, and a pedestrian collision scene that is a scene of a traffic accident that collides with a pedestrian crossing the road can be given. Also, a frontal collision scene that is a traffic accident scene that collides head-on with a moving body that moves in a direction facing the host vehicle, and a rear-end collision scene that is a scene of a traffic accident that collides with a moving body existing in front of the host vehicle, A lane change collision scene that is a scene of a traffic accident that collides with a moving body when a lane change is performed can be given.

Further, the driving support information may be classified as follows, and driving support information classified according to the situation may be presented.
In the driving support information presentation device according to claim 9, the driving support information includes information on an extended classification of a perceptual function to which information indicating a state of the own vehicle or a state around the own vehicle belongs, and information for a driver to smoothly drive. The information provision classification to which the information belongs, the alert classification to which the information to call attention to avoid the traffic accident related to the traffic accident scene predicted in the traffic accident scene prediction process, and the risk of the traffic accident related to the traffic accident scene Are classified into warning classifications to which information indicating that the performance is very high belongs. Then, in the driving support information presentation process, the control unit specifies the classification of the driving support information according to the risk calculated in the risk calculation process, and presents the driving support information belonging to the specified class to the driver.

This makes it possible to present driving assistance information that is more useful and more receptive.
In the driving support information presentation device according to claim 10, the driving support information includes an extended classification of perceptual functions to which information indicating the state of the own vehicle or the surroundings of the own vehicle belongs, and the driver smoothly performs the driving. The information provision classification to which the information belongs, the alert classification to which the information to call attention to avoid the traffic accident related to the traffic accident scene predicted in the traffic accident scene prediction process, and the traffic accident related to the traffic accident occurred It is classified into the warning classification to which the information indicating that the risk of being performed is very high belongs. Then, in the driving support information presentation process, the control means specifies the classification of the driving support information according to the arrival interval specified by the arrival interval specifying means, and presents the driving support information belonging to the specified classification to the driver.

This makes it possible to present driving assistance information that is more useful and more receptive.
Further, the driving support information may be classified as follows, and driving support information classified according to the situation may be presented.

  In the driving support information presentation device according to claim 11, the driving support information includes a recognition support information classification to which information indicating a state of the own vehicle or a state around the own vehicle belongs, and a determination to which information for avoiding a traffic accident belongs. The information is classified into support information classification and operation support information classification to which information indicating an operation to be performed by the driver of the own vehicle to avoid a traffic accident belongs. Then, in the driving support information presentation process, the control unit specifies the classification of the driving support information according to the risk calculated in the risk calculation process, and presents the driving support information belonging to the specified class to the driver.

This makes it possible to present driving assistance information that is more useful and more receptive.
In the driving support information presentation device according to claim 12, the driving support information includes a recognition support information classification to which information indicating a state of the own vehicle or a state around the own vehicle belongs, and information for avoiding a traffic accident. The classification support information classification belongs to and the operation support information classification to which information indicating an operation to be performed by the driver of the own vehicle to avoid a traffic accident belongs. Then, in the driving support information presentation process, the control means specifies the classification of the driving support information according to the arrival interval specified by the arrival interval specifying means, and presents the driving support information belonging to the specified classification to the driver.

This makes it possible to present driving assistance information that is more useful and more receptive.
Further, the presenting means may present various information to the user by displaying the information using a head-up display.

  In addition, as described in claim 14, the driving support information presentation device incorporates a program for functioning as control means of the driving support information presentation device according to any one of claims 1 to 13. You may make it run on a computer.

  According to the fourteenth aspect, for example, a program is recorded on a computer-readable recording medium such as a magneto-optical disk, a CD-ROM, a hard disk, a ROM, and a RAM, and the program is recorded as necessary. It can be made to function as a driving assistance information presentation device by loading it on a computer and starting it. Further, since the program can be distributed using a network, the function of the driving support information presentation device can be easily improved.

  The driving support information presentation method according to claim 15 is based on moving body information including information indicating a position and a traveling direction of the moving body to avoid a traffic accident that occurs in the host vehicle when traveling in a predetermined place. The driving support information that is the information of is generated and presented to the driver. This driving support information presentation method includes a mobile body information receiving step for receiving mobile body information of a mobile body existing around the host vehicle from outside the host vehicle by wireless communication, and information indicating a position and a traveling direction of the host vehicle. A host vehicle information acquisition step of acquiring host vehicle information including the host vehicle information from outside the host vehicle or from a device mounted on the host vehicle. Further, based on the moving body information received in the moving body information receiving step and the own vehicle information acquired in the own vehicle information acquisition step, the relative position and relative path between the moving body and the own vehicle around the own vehicle A positional relationship specifying step for specifying a positional relationship, and driving support information presentation step for generating driving support information according to the positional relationship calculated in the positional relationship specifying step and presenting the generated driving support information to the driver Have.

  By having such a configuration, it is possible to present appropriate driving assistance information for avoiding traffic accidents in consideration of moving objects existing around the host vehicle. High driving support information can be presented.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The embodiments of the present invention are not limited to the following embodiments, and various forms can be adopted as long as they belong to the technical scope of the present invention.

[Description of configuration]
FIG. 1 is a block diagram illustrating a configuration of a driving assistance information presentation device 10 described in the present embodiment. The driving support information presentation device 10 is mounted on a vehicle, and is connected to the navigation device 40, the vehicle speed sensor 50, and the radar sensor 60 via an in-vehicle LAN. The driving support information presentation device 10 performs road-to-vehicle communication with the roadside device 20 through wireless communication, and performs vehicle-to-vehicle communication with the other vehicle 30 through wireless communication. And the driving assistance information presentation device 10 is traffic generated in the own vehicle on which the driving assistance information presentation device 10 is mounted when passing the assistance area based on the information received by the road-to-vehicle communication and the vehicle-to-vehicle communication. Driving assistance information that is information for avoiding accidents is generated and presented.

The driving support information presentation device 10 includes an external communication device 11, a head-up display 12, a control unit 13, and an in-vehicle LAN communication unit 14.
The external communication device 11 performs road-to-vehicle communication by wireless communication via the communication antenna (not shown) with the roadside device 20 installed in the support area, and also via the other vehicle 30 traveling around the host vehicle and the wireless antenna (not shown). This is a part that performs vehicle-to-vehicle communication by wireless communication. The external communication device 11 receives mobile body information that is information indicating the position, traveling direction, and speed of a vehicle, a pedestrian, and the like (hereinafter referred to as a mobile body) in a support area through road-to-vehicle communication. In addition, the external communication device 11 is mobile information that is information indicating the position, traveling direction, and speed of the other vehicle 30 that travels around the host vehicle and information that indicates the expected course of the other vehicle 30 through inter-vehicle communication. Receive certain moving body route information.

  The head-up display 12 is a part that projects various information as video light by a video projector (liquid crystal display or the like) and causes the driver to visually recognize various information reflected on the inner surface of the windshield as a display image.

  The control unit 13 is mainly configured by a known microcomputer including a CPU, a ROM, a RAM, an I / O, a bus line connecting these, and the like. The control unit 13 is a part that controls each part of the driving support information presentation device 10 according to a program stored in the ROM. The control unit 13 communicates with the navigation device 40, the vehicle speed sensor 50, and the radar sensor 60 via the in-vehicle LAN communication unit 14.

The in-vehicle LAN communication unit 14 is a part that communicates with the navigation device 40, the vehicle speed sensor 50, and the radar sensor 60 via the in-vehicle LAN.
The roadside device 20 is installed in a support area that is an area where the driving support information presentation device 10 presents driving support information. In the support area, a detection device for detecting the speed of the moving body in the area is installed. In the support area, one or more roadside machines 20 and detection devices are installed, and these are connected to each other. The detection device detects the position, traveling direction, and speed of one or more moving bodies present in a predetermined area within the support area, and notifies the roadside device 20 of the detected position. Then, the roadside device 20 generates moving body information of the moving body existing in the predetermined area based on the position, traveling direction, and speed of the moving body notified from the detection device, and presents driving support information in a cycle of 1 second. Transmit to device 10. The moving body information transmitted by the roadside device 20 is information that can specify the position and traveling direction of the moving body in a map indicated by map data included in the navigation device 40 described later.

  In addition, the other vehicle 30 is a vehicle that is traveling in the support area, and the moving body information of the other vehicle 30 and the moving body route information indicating the expected course of the other vehicle 30 are 1 for the own vehicle by inter-vehicle communication. Send in seconds. The moving body information transmitted by the other vehicle is information that can specify the position and the traveling direction of the other vehicle in a map indicated by map data included in the navigation device 40 described later. In addition, the moving body route information is information that can specify an expected route in a map indicated by map data included in the navigation device 40 described later.

  The navigation device 40 is a well-known navigation device that performs route guidance and the like. The navigation device 40 stores map data of the support area. This map data includes road shape data which is data indicating the shape of the road. Further, the navigation device 40 includes information that can identify the position and traveling direction of the host vehicle and host vehicle route information that is information that can identify the predicted course of the host vehicle in the map indicated by the stored map data. And transmitted to the driving support information presentation device 10 via the in-vehicle LAN.

The vehicle speed sensor 50 is a sensor that detects the vehicle speed of the host vehicle. The vehicle speed sensor 50 transmits the speed of the host vehicle to the driving support information presentation device 10 via the in-vehicle LAN.
Further, the radar sensor 60 detects the position, traveling direction, and speed of a moving body existing in a radar detection area, which is an area near the host vehicle, using millimeter wave radar. And the mobile body information which shows the position, the advancing direction, and speed of a mobile body is produced | generated, and it transmits to the driving assistance information presentation apparatus 10 via in-vehicle LAN. The moving body information transmitted by the radar sensor 60 is information that can specify the position and the traveling direction of the moving body in the radar detection area in a map indicated by map data included in the navigation device 40 described later.

[Explanation of driving support information]
The driving support information is information for avoiding a traffic accident that occurs in the host vehicle when traveling in a predetermined place. Here, a driving support information screen that the driving support information presentation device 10 presents to the driver as driving support information will be described. The driving assistance information presentation device 10 presents this driving assistance information screen to the driver by projecting the driving assistance information screen onto the windshield by the head-up display 12.

  The driving support information is predicted in an extended classification of perceptual functions to which information indicating the state of the own vehicle or the surroundings of the own vehicle belongs, an information provision classification to which information for smooth driving by the driver belongs, and processing described later. Warning classification to which information that calls attention to avoid traffic accidents related to traffic accident scenes belongs, and warning classification to which information indicating that the risk of traffic accidents related to traffic accident scenes is very high belongs being classified.

  In addition, the driving support information includes a recognition support information classification to which information indicating the state of the own vehicle or the surroundings of the own vehicle belongs, a decision support information classification to which information for avoiding a traffic accident belongs, and a driver to avoid a traffic accident. It is also classified as an operation support information classification to which information indicating an operation to be performed belongs.

  In other words, the driving support information presentation device 10 expands the perceptual function according to the positional relationship between the host vehicle and the moving body, the risk of a traffic accident occurring in the host vehicle, and the like when the host vehicle travels in the support area. Select an optimal classification from among classification, information provision classification, alert classification, and warning classification, and select an optimal classification from among recognition support information classification, judgment support information classification, and operation support information classification select. And the driving assistance information presentation apparatus 10 produces | generates the driving assistance information which belongs to both of two selected classification | category, and shows it to a driver.

  The driving support information screen 80, the driving support information screen 82, the driving support information screen 84, and the driving support information screen 86 described in FIGS. 2 and 3 are displayed on the user as driving support information. It is a specific example of the screen to present.

  A screen 1 in FIG. 2 is a driving support information screen 80. The driving support information screen 80 is a screen showing driving support information belonging to the expanded classification of perceptual functions, and indicates “60 km / h” that is the current speed of the host vehicle. The driving support information screen 80 is a screen showing driving support information that also belongs to the operation support information classification, and shows a message “Decelerate!”.

  A screen 2 in FIG. 2B is a driving support information screen 82. The driving support information screen 82 is a screen showing driving support information belonging to the information provision classification, and indicates that the driver should turn right at the intersection. The driving support information screen 82 is a screen showing driving support information that also belongs to the recognition support information classification, and indicates that the host vehicle is traveling at a support intersection that is a support area.

  A screen 3 in FIG. 3 is a driving support information screen 84. The driving support information screen 84 is a screen showing driving support information belonging to the alerting classification, and shows that the oncoming vehicle is approaching the host vehicle. In addition, the driving support information screen 84 is a screen showing driving support information that also belongs to the judgment support information classification, and shows a message of “Attention of oncoming vehicle” that calls attention to an oncoming vehicle.

  A screen 4 in FIG. 3B is a driving support information screen 86. The driving support information screen 86 is a screen showing driving support information belonging to the warning classification, and shows that the host vehicle is about to collide with an oncoming vehicle. The driving support information screen 86 is a screen showing driving support information that also belongs to the operation support information classification, and shows a message “stop” instructing the stop of the host vehicle.

[Description of operation]
[First embodiment]
Next, it is performed when the host vehicle on which the driving support information presentation device 10 according to the first embodiment is mounted travels in a support area that is an area where mobile body information used for presenting driving support information can be acquired. Processing will be described. The driving support information presentation device 10 presents driving support information only when traveling in the support area 110.

(1) About the support area Before explaining the processing performed by the driving support information presentation device 10 of the first embodiment, the situation when the host vehicle enters the support area will be described with reference to the explanatory diagram 100 shown in FIG. explain.

  The explanatory diagram 100 shows a road passing through the support area 110. The support area 110 includes a support intersection 120, and a detection device 70 that detects moving body information of a mobile object existing at the support intersection 120 is installed in the vicinity thereof. Therefore, the driving assistance information presentation device 10 mounted on the host vehicle traveling in the assistance area 110 can receive the moving body information of the moving body existing at the assistance intersection 120 from the roadside device 20. The vehicle drawn at the support intersection 120 indicates a vehicle detected by the detection device 70.

  In addition, the explanatory diagram 100 shows a state where the host vehicle 130 enters the support area 110. The radar detection area 135 present in the vicinity of the host vehicle 130 is an area in which the radar sensor 60 mounted on the host vehicle 130 can detect the position, traveling direction, and speed of the moving body. The vehicle depicted in the radar detection area 135 indicates a vehicle detected by the radar sensor 60. In addition, the predicted host vehicle path 140 indicated as an arrow starting from the host vehicle 130 indicates the predicted path of the host vehicle 130 in the support area 110.

  A plurality of roadside machines 20 are installed near the road passing through the support area 110, and one of them is installed near the point where the host vehicle 130 enters the support area 110. In the explanatory diagram 100, the roadside machine 20 installed in the vicinity of the point where the host vehicle 130 enters is depicted. When the host vehicle 130 enters the support area 110, the roadside machine 20 supports the later described support. Receive area information, etc.

  In addition, the explanatory diagram 100 shows a state in which the other vehicle 30 travels in the opposite lane of the lane in which the host vehicle 130 travels. The predicted other vehicle path 150 indicated as an arrow starting from the other vehicle 30 indicates the predicted path of the other vehicle 30 in the support area 110.

(2) About the display timing of driving assistance information Next, the timing when the driving assistance information presentation device 10 of the first embodiment mounted on the host vehicle 130 traveling in the assistance area 110 starts displaying the driving assistance information, and the display The timing for switching the content of the driving support information therein will be described with reference to an explanatory diagram 160 shown in FIG.

  In the explanatory diagram 160, a part of the support area 110, a road passing through the support area 110, and a support intersection 120 are shown. In addition, the explanatory diagram 160 shows a situation where the host vehicle 130 enters the support area 110, and the host vehicle predicted course 140 shown as an arrow starting from the host vehicle 130 is the host vehicle 130 in the support area 110. Shows the expected course.

  A start point 142a, which is a point on the predicted course 140 of the host vehicle, is a point at which display of driving support information is started. The switching point 142b and the switching point 142c are points for changing the content of the driving support information being displayed. Details will be described later.

(3) About the driving support process In the first embodiment, in the situation of the explanatory diagram 100 described in FIG. 4, the roadside machine 20 installed near the point where the host vehicle 130 has entered is a driving mounted on the host vehicle 130. The support information presenting apparatus 10 transmits information indicating that the host vehicle 130 has entered the support area 110 and support area information, which is information specifying the ranges of the support area 110 and the support intersection 120, through road-to-vehicle communication. FIG. 6 shows a driving support process started when the driving support information presentation device 10 of the first embodiment receives the fact that the host vehicle 130 has entered the support area 110 and the support area information from the roadside device 20. This will be described with reference to a flowchart.

  In S205, the control unit 13 of the driving assistance information presentation device 10 receives the moving body information of the moving body existing at the assistance intersection 120 from the roadside device 20 via road-to-vehicle communication. Moreover, the control part 13 receives the moving body information of the other vehicle 30 which drive | works the assistance area 110, and moving body course information from the other vehicle 30 via vehicle-to-vehicle communication. This moving body course information indicates the other vehicle expected course 150 of the explanatory diagram 100 (the course in which the other vehicle 30 traveling in the oncoming lane goes straight through the support intersection 120). Further, the control unit 13 receives information indicating the position and traveling direction of the host vehicle 130 from the navigation device 40 via the in-vehicle LAN, and also displays information indicating the speed of the host vehicle 130 detected by the vehicle speed sensor 50. Received via the LAN, the host vehicle information indicating the position, traveling direction, and speed of the host vehicle 130 is acquired. Further, the control unit 13 receives the moving body information of the moving body that travels in the radar detection area 135 detected by the radar sensor 60 via the in-vehicle LAN. Then, the process proceeds to S210.

  In S210, the control unit 13 specifies the range of the support area 110 based on the support area information received from the roadside device 20, and receives the map data of the support area 110 from the navigation device 40 via the in-vehicle LAN. Then, the process proceeds to S215.

  In S215, the control unit 13 receives, from the navigation device 40 via the in-vehicle LAN, own vehicle route information indicating the route related to the route guidance performed in the navigation device 40 in the map data received in S210. Thus, the expected course of the host vehicle 130 is specified. In the present embodiment, the own vehicle route information indicates the predicted own vehicle route 140 (the route in which the own vehicle 130 makes a right turn at the support intersection 120) in the explanatory diagram 100. Then, the process proceeds to S220.

  In S220, the control unit 13 indicates the map data received in S210 based on the moving body information, the moving body route information, and the own vehicle information acquired in S205, and the own vehicle route information received in S215. In the map, the positional relationship indicating the position and course of the host vehicle 130 and the position and course of the moving body existing in the support area 110 or the radar detection area 135 is specified. Then, the process proceeds to S225.

  In S225, the control unit 13 specifies the traffic volume of the moving body that travels in the support area 110 based on the positional relationship specified in S220, and starts displaying the driving support information according to the specified traffic volume. The start timing and the switching timing that is the timing for switching the content of the driving support information being displayed are specified. Specifying the start timing and the switching timing means determining the starting point and the switching point on the predicted route 140 of the own vehicle in the explanatory diagram 100. The control unit 13 determines the start point 142a, the switching point 142b, and the switching point 142c on the host vehicle expected course 140 as illustrated in the explanatory diagram 160 of FIG. 5, and the process proceeds to S230.

  In S230, the control part 13 performs the driving assistance information display process which is a process which produces | generates driving assistance information and displays driving assistance information on a windshield. Then, the process proceeds to S235.

  In S235, the control unit 13 receives information indicating the current position of the host vehicle 130 from the navigation device 40 via the in-vehicle LAN, and the host vehicle 130 passes through the support intersection 120 based on the map data received in S210. Determine whether or not. When it determines with having passed the assistance intersection 120 (S235: Yes), a driving assistance process is complete | finished. If it is determined that the vehicle has not passed through the support intersection 120 (S235: No), the process proceeds to S230.

(4) Driving support information display process Next, the driving support information display process in which the driving support information presentation apparatus 10 of the first embodiment displays the driving support information on the windshield by the head-up display 12 will be described with reference to FIG. This will be described with reference to the flowchart described in the above. The driving support information display process is a process called from S230 of the driving support process illustrated in FIG.

  In S305, the control unit 13 of the driving assistance information presentation device 10 receives the moving body information of the moving body existing at the assistance intersection 120 from the roadside machine 20 via road-to-vehicle communication. Moreover, the control part 13 receives the moving body information of the other vehicle 30 which drive | works the assistance area 110, and moving body course information from the other vehicle 30 via vehicle-to-vehicle communication. This moving body course information indicates the other vehicle expected course 150 of the explanatory diagram 100 shown in FIG. 4 (the course in which the other vehicle 30 traveling in the oncoming lane travels straight through the support intersection 120). Further, the control unit 13 receives information indicating the position and traveling direction of the host vehicle 130 from the navigation device 40 via the in-vehicle LAN, and also displays information indicating the speed of the host vehicle 130 detected by the vehicle speed sensor 50. Received via the LAN, the host vehicle information indicating the position, traveling direction, and speed of the host vehicle 130 is acquired. Further, the control unit 13 receives the moving body information of the moving body that travels in the radar detection area 135 detected by the radar sensor 60 via the in-vehicle LAN. Then, the process proceeds to S310.

  In S310, the control unit 13 indicates the map data received in S210 based on the moving body information, the moving body route information, and the own vehicle information acquired in S305 and the own vehicle route information received in S215. In the map, the positional relationship indicating the position and course of the host vehicle 130 and the position and course of the moving body existing in the support area 110 or the radar detection area 135 is specified. Then, the process proceeds to S315.

  In S315, the control unit 13 predicts a traffic accident scene based on the positional relationship specified in S310. In the first embodiment, the control unit 13 predicts a right turn collision scene that is a scene of a traffic accident that the host vehicle encounters when making a right turn. Then, the process proceeds to S320.

  In S320, the control unit 13 executes a driving support information generation process for generating driving support information, and the process proceeds to S325. Here, since a right turn collision scene is predicted as a traffic accident scene, a driving support information generation process corresponding to the right turn collision scene is executed.

  In S325, the control unit 13 displays a driving support information screen, which is driving support information generated in the driving support information generation process and temporarily stored in a predetermined area of the RAM included in the control unit 13, as a head-up display. 12 is displayed on the windshield. When the driving support information screen is not stored in the RAM, the control unit 13 does not display the driving support information screen. Then, the driving support information display process ends.

(5) Driving support information generation process Next, the driving support information generation process in which the driving support information presentation device 10 of the first embodiment generates driving support information based on the positional relationship and the like is described in FIG. It demonstrates using the flowchart of these. The driving support information generation process is a process called from S320 of the driving support information display process illustrated in FIG. The driving support information generation process described here is a process of generating driving support information corresponding to a right turn collision scene.

  In S405, the control unit 13 of the driving support information presentation device 10 specifies the current position of the host vehicle 130 by receiving information indicating the current position of the host vehicle 130 from the navigation device 40 via the in-vehicle LAN. The process proceeds to S410.

  In S410, the control unit 13 displays the driving assistance information based on the current position of the host vehicle 130 specified in S405, the predicted own vehicle path 140 specified in S215, and the start timing specified in S225. It is determined whether or not it is after reaching the start timing. Specifically, it is determined whether or not the host vehicle 130 exists in a section from the start point 142a in the explanatory diagram 160 illustrated in FIG. When it is determined that the host vehicle 130 exists in the section from the start point 142a of the explanatory diagram 160 to the support intersection 120 in the explanatory diagram 160 (S410: Yes), the control unit 13 reaches the timing to start displaying the driving support information. It is determined that the process has been performed, and the process proceeds to S415. Moreover, when it determines with the own vehicle 130 not existing in the area until the own vehicle 130 passes the assistance intersection 120 from the starting point 142a of explanatory drawing 160 (S410: No), it starts the display of driving assistance information. It determines with it being before reaching timing, and complete | finishes a driving assistance information generation process.

  In S415, the control unit 13 selects the classification of the driving support information according to the distance between the host vehicle 130 and the support intersection 120. Specifically, when the current position of the host vehicle 130 specified in S405 is present in the section from the start point 142a to the switching point 142b in the explanatory diagram 160, the recognition support classification is selected. In addition, when the current position of the host vehicle 130 exists in the section from the switching point 142b to the switching point 142c in the explanatory diagram 160, the determination support classification is selected. In addition, when the current position of the host vehicle 130 exists in a section from the switching point 142c of the explanatory diagram 160 to the support intersection 120, the operation support classification is selected. Then, the process proceeds to S420.

  In S420, the control part 13 determines the presence or absence of the other vehicle which drive | works the assistance area 110 based on the positional relationship specified in S310 of a driving assistance information display process. If there is no other vehicle traveling in the support area 110 (S420: Yes), the process proceeds to S425. At this time, the control unit 13 may determine the level of risk as level 1 and may shift the process to S425 based on the level of risk. If there is another vehicle traveling in the support area 110 (S420: No), the process proceeds to S430.

In S425, the control unit 13 selects an expanded classification of the perceptual function as the classification of the driving support information, and the process proceeds to S455.
In S430, the control unit 13 determines the presence or absence of a vehicle traveling in front of the host vehicle 130 based on the positional relationship specified in S310 of the driving support information display process. If there is a vehicle traveling in front of the host vehicle 130 (S430: Yes), the process proceeds to S435. At this time, the control unit 13 may determine the level of risk as level 2 and may shift the process to S435 based on the level of risk. When there is no vehicle traveling in front of the host vehicle 130 (S430: No), the process proceeds to S440.

In S435, the control unit 13 selects the information provision classification as the classification of the driving support information, and the process proceeds to S455.
In S440, the control part 13 determines the presence or absence of the vehicle which goes straight on an oncoming lane based on the positional relationship specified in S310 of a driving assistance information display process. When there is a vehicle traveling straight on the oncoming lane (S440: Yes), the process proceeds to S450. At this time, the control unit 13 may determine that the degree of risk is level 4, and may shift the process to S450 based on the degree of risk. If there is no vehicle traveling straight on the opposite lane (S440: No), the process proceeds to S445. At this time, the control unit 13 may determine the level of risk as level 3, and may shift the process to S445 based on the level of risk.

In S445, the control unit 13 selects the alert classification as the classification of the driving support information, and the process proceeds to S455.
In S450, the control unit 13 selects the warning classification as the classification of the driving support information, and the process proceeds to S455.

  In S455, the control unit 13 generates a driving assistance information screen that is driving assistance information belonging to the classification selected in S425, S435, S445, or S450, as well as belonging to the classification selected in S415. , Temporarily stored in a predetermined area of the RAM provided in the control unit 13. Then, the driving support information generation process ends.

[effect]
The driving support information presentation device 10 of the first embodiment includes the moving body information and moving body route information of the other vehicle 30 traveling in the support area 110, the moving body information of the moving body existing at the support intersection 120, and the radar detection area. The moving body information, the own vehicle information and the own vehicle route information of the moving body existing in 135 are acquired (S215, S305), and the positional relationship is specified based on these information (S310). Then, an optimal classification corresponding to the positional relationship is selected from the expanded classification of perceptual function, information provision classification, alert classification, and warning classification (S420, S430, S440), and driving support information belonging to the selected classification is selected. Presenting. Therefore, it is possible for the driver to present optimal driving assistance information for avoiding traffic accidents in consideration of the moving objects existing around the assistance area 110 and the host vehicle 130, which is useful and highly receptive to the driver. It is possible to present driving support information. In addition, since the positional relationship is specified in consideration of the expected course of the host vehicle 130 and the other vehicle 30, the positional relationship can be specified accurately, and accurate driving support information can be presented.

  The driving support information presentation device 10 predicts a traffic accident scene (S315) and generates driving support information corresponding to the traffic accident scene (S320). Therefore, useful and highly receptive driving support information can be obtained.

  In addition, the driving support information presentation device 10 specifies a start timing for starting the display of driving support information based on the positional relationship and a switching timing for switching the content of the driving support information being displayed (S225). Then, after reaching the start timing, the display of the driving support information is started (S410). Further, when the host vehicle 130 reaches the switching timing, an optimum classification corresponding to the distance to the support intersection 120 is selected from the recognition support classification, the determination support classification, and the operation support classification, and the driving being displayed Instead of the support information, the driving support information belonging to the newly selected category is displayed (S415). Therefore, it is possible to start displaying the driving support information at the optimal timing considering the positional relationship and to switch the content of the driving support information being displayed. It can be presented. In addition, it is possible to present the driver with an optimal coping method according to the distance to the support intersection 120, or to present the driving support information in a manner corresponding to the degree of urgency based on the distance to the support intersection 120.

[Second Embodiment]
Next, it is performed when the host vehicle on which the driving support information presentation device 10 of the second embodiment is mounted travels in a support area that is an area where mobile body information used for presenting driving support information can be acquired. Processing will be described. Moreover, the process performed in the driving assistance information presentation apparatus 10 of 2nd embodiment is substantially the same as the process performed in the driving assistance information presentation apparatus 10 of 1st embodiment. Therefore, only a part different from the process performed in the driving support information presentation device 10 of the first embodiment will be described here.

(1) Support Area Since the situation when the driving support information presentation device 10 of the second embodiment enters the support area is the same as that of the driving support information presentation device 10 of the first embodiment, description thereof is omitted. To do.

(2) Driving support process Also in the second embodiment, in the situation of the explanatory diagram 100 shown in FIG. 4, the roadside device 20 installed near the point where the host vehicle 130 entered is mounted on the host vehicle 130. Information indicating that the host vehicle 130 has entered the support area 110 and support area information that is information specifying the ranges of the support area 110 and the support intersection 120 are transmitted to the driving support information presentation device 10 by road-to-vehicle communication. A driving support process started when the driving support information presentation device 10 according to the second embodiment receives the fact that the host vehicle 130 has entered the support area 110 and the support area information from the roadside device 20 will be described.

  In the driving support information presentation device 10 of the second embodiment, the driving support process substantially similar to that of the first embodiment is performed. Therefore, here, only differences from the first embodiment will be described.

  In S225 of the driving support process of the first embodiment, the control unit 13 of the driving support information presentation device 10 specifies and specifies the traffic volume of the moving body that travels in the support area 110 based on the positional relationship specified in S220. A start timing that is a timing for starting display of the driving support information according to the traffic volume and a switching timing that is a timing for switching the content of the driving support information being displayed are specified. The specification of the start timing and the switching timing means that the start point and the switching point on the own vehicle expected course 140 in the explanatory diagram 100 illustrated in FIG. 4 are determined. The control unit 13 determines the start point 142a, the switching point 142b, and the switching point 142c on the host vehicle expected course 140 as illustrated in the explanatory diagram 160 of FIG. 5, and the process proceeds to S230.

  On the other hand, in S225 of the driving support process of the second embodiment, the control unit 13 specifies the traffic volume of the moving body traveling in the support area 110 based on the positional relationship specified in S220, and according to the specified traffic volume. A start timing that is a timing for starting display of the driving support information and a switching timing that is a timing for switching the content of the driving support information being displayed are specified. Specifying the start timing and switching timing means setting a threshold for the remaining time until the host vehicle 130 reaches the support intersection 120. Based on the position and speed of the host vehicle 130 indicated by the host vehicle information acquired in S205 and the map data received in S210, the control unit 13 until the host vehicle 130 reaches the support intersection 120 at the present time. Calculate the remaining time. Based on the remaining time at the present time, the control unit 13 sets the remaining time threshold T0 when starting the display of the driving support information and the remaining time thresholds T1 and T2 when switching the content of the driving support information being displayed. , And T3 are calculated, and the process proceeds to S230. The magnitude relationship among T0, T1, T2, and T3 is T0> T1> T2> T3.

(3) Driving Support Information Display Processing Next, driving support information display processing, which is processing in which the driving support information presentation device 10 of the second embodiment displays driving support information on the windshield using the head-up display 12, will be described with reference to FIG. This will be described with reference to the flowchart described in the above. The driving support information display process is a process called from S230 of the driving support process illustrated in FIG.

Also in the driving support information presentation device 10 of the second embodiment, the driving support information display process similar to that of the first embodiment is performed, and thus the description thereof is omitted.
(4) About driving support information generation processing About the driving support information generation process which is the process in which the driving support information presentation apparatus 10 of 2nd embodiment produces | generates driving support information based on a positional relationship etc., the flowchart as described in FIG. It explains using. The driving support information generation process is a process called from S320 of the driving support information display process of the second embodiment. The driving support information generation process described here is a process of generating driving support information corresponding to a right turn collision scene.

  In S505, the control unit 13 of the driving assistance information presentation device 10 is based on the position and speed of the own vehicle 130 indicated by the own vehicle information acquired in S305 of the driving assistance information display process, and the map data received in S210. The remaining time until the own vehicle 130 reaches the support intersection 120 at the present time is calculated. Then, the process proceeds to S510.

  In S510, the control unit 13 compares the remaining time calculated in S505 with the threshold value T0 calculated in S225 of the driving support process, and whether or not the timing for starting the display of driving support information has been reached or not. To determine. Specifically, when the remaining time calculated in S505 is smaller than the threshold value T0, it is determined that it is after the timing to start presenting driving support information (S510: Yes), and the process proceeds to S515. To do. If the remaining time calculated in S505 is equal to or greater than the threshold value T0, it is determined that it is before reaching the timing for starting the presentation of driving support information (S510: No), and the driving support information generation process is terminated. .

  In S515, the control unit 13 selects the classification of the driving support information according to the remaining time calculated in S505. Specifically, when the remaining time is equal to or greater than the threshold value T1, the expanded classification of the perceptual function is selected. If the remaining time is equal to or greater than the threshold T2, the information provision classification is selected. Further, when the remaining time is equal to or greater than the threshold T3, the alerting classification is selected. If the remaining time is less than the threshold value T3, the warning classification is selected. Then, the process proceeds to S520.

  In S520, the control unit 13 determines whether there is a vehicle traveling in front of the host vehicle 130 based on the positional relationship specified in S310 of the driving support information display process. If there is a vehicle traveling in front of the host vehicle 130 (S520: Yes), the risk is set to level 1, and the process proceeds to S525. If there is no vehicle traveling in front of the host vehicle 130 (S520: No), the process proceeds to S530.

In S525, the control unit 13 selects the recognition support classification as the classification of the driving support information, and the process proceeds to S545.
In S530, the control part 13 determines the presence or absence of the vehicle which goes straight on an oncoming lane based on the positional relationship specified in S310 of a driving assistance information display process. If there is a vehicle traveling straight on the oncoming lane (S530: Yes), the risk is set to level 3, and the process proceeds to S540. If there is no vehicle traveling straight on the opposite lane (S530: No), the risk is set to level 2, and the process proceeds to S535.

In S535, the control unit 13 selects the determination support classification as the classification of the driving support information, and the process proceeds to S545.
In S540, the control unit 13 selects the operation support classification as the classification of the driving support information, and the process proceeds to S545.

  In S545, the control unit 13 generates a driving support information screen, which is driving support information belonging to the classification selected in S515 and belonging to the classification selected in any of S525, S535, or S540. The information is temporarily stored in a predetermined area of the RAM included in the unit 13. Then, the driving support information generation process ends.

[effect]
The driving support information presentation device 10 of the second embodiment includes the moving body information and moving body route information of the other vehicle 30 traveling in the support area 110, the moving body information of the moving body existing at the support intersection 120, and the radar detection area. The moving body information, the own vehicle information and the own vehicle route information of the moving body existing in 135 are acquired (S215, S305), and the positional relationship is specified based on these information (S310). Then, the degree of risk is calculated based on the positional relationship, and an optimum classification corresponding to the degree of risk is selected from the recognition support classification, the judgment support classification, and the operation support classification (S520, S530), and the driving belonging to the selected classification Presenting support information. Therefore, driving support information corresponding to the degree of risk when the host vehicle 130 travels in the support area 110 can be presented, so that it is possible for the driver to present driving support information that is useful and highly receptive. .

  In addition, the driving support information presentation device 10 specifies a start timing for starting the display of driving support information based on the positional relationship and a switching timing for switching the content of the driving support information being displayed (S225). Then, after reaching the start timing, the display of the driving support information is started (S510). Further, when the host vehicle 130 reaches the switching timing, the remaining time until the host vehicle 130 reaches the support intersection 120 from among the perceptual function expansion classification, the information provision classification, the alert classification, and the warning classification. The optimum classification corresponding to the selected category is selected, and the driving assistance information belonging to the newly selected classification is displayed instead of the driving assistance information being displayed (S515). Therefore, it is possible to start displaying the driving support information at the optimal timing considering the positional relationship and to switch the content of the driving support information being displayed. It can be presented. In addition, it is possible to present the driver with an optimal coping method according to the remaining time, or to present driving support information in a manner corresponding to the degree of urgency based on the remaining time.

[Other Embodiments]
(1) The driving assistance information presentation device 10 predicts a right turn collision scene, which is a traffic accident scene that the host vehicle 130 encounters when making a right turn, as a traffic accident scene that occurs in the host vehicle 130. However, in addition to this traffic accident scene, a collision scene at the time of a left turn, which is a scene of a traffic accident that the host vehicle 130 encounters when making a left turn, or a host vehicle 130 traveling at a support intersection 120 collides with a vehicle entering the intersection from an intersection road. It is preferable to predict an encounter collision scene that is a scene of a traffic accident or a pedestrian collision scene that is a scene of a traffic accident in which the vehicle 130 collides with a pedestrian crossing the road. Further, a frontal collision scene in which the own vehicle 130 collides with an opposite vehicle in a frontal collision, a rear-end collision scene in which the own vehicle 130 collides with a vehicle existing in front, a self-vehicle 130 may predict a collision scene at the time of lane change, which is a scene of a traffic accident that collides with a vehicle when a lane change is performed. And it is good to display the driving assistance information for avoiding each traffic accident. By doing so, the driving assistance information presentation device 10 can present more useful and highly acceptable driving assistance information to the driver.

  (2) The driving support information presentation device 10 receives the own vehicle route information indicating the route related to the route guidance from the navigation device 40 that provides the route guidance, and turns the predicted route (the support intersection 120 of the own vehicle 130 to the right). ) Is specified. However, for example, the predicted course of the host vehicle 130 may be specified based on the travel lane in which the host vehicle 130 is traveling or the operating state of the direction indicator of the host vehicle 130. In this way, even when the navigation device 40 is not mounted on the host vehicle 130 or when the route guidance is not performed by the navigation device 40, the expected course of the host vehicle 130 can be specified. .

  (3) The driving assistance information presentation device 10 may receive the position and traveling direction of the host vehicle detected by the device installed in the assistance area via wireless communication. Then, the host vehicle information may be generated based on the received position and traveling direction of the host vehicle and the speed of the host vehicle 130 detected by the vehicle speed sensor 50. By doing so, it is possible to acquire the host vehicle information even if the navigation device 40 is not mounted on the host vehicle 130.

  (4) In the driving support information generation process, the control unit 13 of the driving support information presentation device 10 according to the second embodiment, the speed of the moving body indicated by the moving body information, the speed of the own vehicle indicated by the own vehicle information, and the driving The degree of risk may be determined in consideration of the road shape indicated by the map data received in S210 of the support process. Specifically, the level of risk may be increased according to the speed of the host vehicle 130, or the level of risk may be changed according to the width of the road passing through the support area 110. By doing so, it is possible to calculate a more accurate risk level, and it is possible to present driving assistance information that is more useful and more receptive.

  (5) The driving support information presentation device 10 may further include a speaker that outputs audio, and may notify the driver of the driving support information through the speaker. By doing so, it becomes possible to make the driver recognize driving support information more effectively.

  (6) In addition to the support area 110, the driving support information presentation device 10 provides similar driving support information when the host vehicle travels in places where traffic accidents such as curves with poor visibility and T-shaped roads occur frequently. May be presented. By doing so, it becomes possible to present the driving support information to the driver more effectively according to the situation.

[Correspondence with Claims]
The correspondence between the terms used in the description of the above embodiment and the terms used in the description of the claims is shown.

  The external communicator 11 is the mobile body information receiving means and the mobile body course information acquisition means, the head-up display 12 is the presentation means, the control unit 13 is the control means, the in-vehicle LAN communication part 14 is the own vehicle information acquisition means, and It corresponds to a moving body information acquisition means.

Further, the control unit 13 and the in-vehicle LAN communication unit 14 correspond to an expected route specifying unit and an arrival interval specifying unit, and the support intersection 120 corresponds to a predetermined place.
Also, S220 and S310 are the positional relationship specifying process, the process consisting of S320 and S325 is the driving support information presentation process, the process consisting of S520 and S530 is the risk level calculating process, S225 is the timing specifying process, and S315. Corresponds to the traffic accident scene prediction process.

  Further, the distance between the host vehicle 130 and the support intersection 120 in S415 and the remaining time in S515 correspond to the arrival interval, and the switching point 142b and the switching point 142c and the threshold values T1, T2, and T3 are switched. Corresponds to timing.

  S205 and S305 are the mobile body information receiving step and the own vehicle information acquisition step of the driving support information presentation method, S220 and S310 are the positional relationship specifying step of the driving support information presentation method, and S320 and S325. The process which consists of corresponds to the driving assistance information presentation step of the driving assistance information presentation method.

2 is a block diagram illustrating a configuration of a driving support information presentation device 10. FIG. It is explanatory drawing of the image which is driving assistance information. It is explanatory drawing of the image which is driving assistance information. It is explanatory drawing of a support area. It is explanatory drawing about the start timing of driving assistance information display, and the switching timing of driving assistance information being displayed. 4 is a flowchart for explaining processing performed while the host vehicle 130 is traveling in a support area 110. 5 is a flowchart for explaining a process in which driving support information presentation device 10 displays driving support information. It is a flow chart for explaining processing in which driving support information presentation device 10 of a first embodiment generates driving support information. It is a flow chart for explaining processing in which driving support information presentation device 10 of a second embodiment generates driving support information.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Driving assistance information presentation apparatus, 11 ... External communication machine, 12 ... Head up display, 13 ... Control part, 14 ... In-vehicle LAN communication part, 20 ... Roadside machine, 30 ... Other vehicles, 40 ... Navigation apparatus, 50 ... Vehicle speed Sensor 60 ... Radar sensor 70 ... Detection device 80 ... Driving assistance information screen 82 ... Driving assistance information screen 84 ... Driving assistance information screen 86 ... Driving assistance information screen 100 ... Explanatory drawing 110 ... Support area DESCRIPTION OF SYMBOLS 120 ... Support intersection, 130 ... Own vehicle, 135 ... Radar detection area, 140 ... Own vehicle expected course, 142a ... Start point, 142b ... Switching point, 142c ... Switching point, 144a ... Start point, 144b ... Switching point, 144c ... Switching point, 144d ... switching point, 150 ... other vehicle expected course, 160 ... explanatory drawing, 170 ... explanatory drawing.

Claims (15)

Based on the moving body information including information indicating the position and traveling direction of the moving body, driving assistance information that is information for avoiding a traffic accident that occurs in the host vehicle when traveling in a predetermined place is generated, and In the driving assistance information presentation device to present,
Mobile body information receiving means for receiving the mobile body information of a mobile body existing around the host vehicle from outside the host vehicle by wireless communication;
Own vehicle information acquisition means for acquiring own vehicle information including information indicating the position and traveling direction of the own vehicle from outside the own vehicle or from a device mounted on the own vehicle;
Presenting means for presenting various information to the user;
Based on the moving body information received by the moving body information receiving means and the own vehicle information acquired by the own vehicle information acquiring means, the relative position and relative path between the moving body and the own vehicle around the own vehicle A positional relationship specifying process for specifying a positional relationship indicating the position relationship, and generating the driving support information according to the positional relationship specified in the positional relationship specifying process, and the generated driving support information via the presenting means Control means for executing driving support information presentation processing to be presented to the driver;
A driving support information presentation device comprising: In the driving assistance information presentation device according to claim 1,
The driving support information presentation device further includes a moving body information acquisition unit that acquires the moving body information of the moving body in the vicinity of the own vehicle from a device mounted on the own vehicle,
The control means specifies the positional relationship between the moving body and the host vehicle in the vicinity of the host vehicle by taking into account the moving body information acquired by the moving body information acquiring unit in the position relationship specifying process.
A driving support information presentation device characterized by the above. In the driving assistance information presentation device according to claim 1 or 2,
The driving support information presentation device further includes an expected course specifying unit that specifies an expected course of the host vehicle,
The control means specifies the positional relation in consideration of the predicted course of the host vehicle identified by the predicted course identification means in the positional relation identification process;
A driving support information presentation device characterized by the above. In the driving assistance information presentation device according to any one of claims 1 to 3,
The driving support information presentation device further includes a moving body route information acquisition means for acquiring moving body route information indicating an expected course of the moving body,
The control means specifies the positional relation in the positional relation specifying process, taking into account the moving body course information acquired by the moving body course information acquisition means;
A driving support information presentation device characterized by the above. In the driving assistance information presentation device according to any one of claims 1 to 4,
The control means executes a risk level calculation process for calculating a risk level of occurrence of a traffic accident when the host vehicle travels the predetermined location based on the positional relationship specified in the positional relationship specifying process, In the driving support information presentation process, the driving support information corresponding to the risk calculated in the risk calculation process is generated instead of the positional relationship specified in the positional relationship specifying process, and the predetermined Presenting the generated driving support information to the driver via the presenting means when approaching
A driving support information presentation device characterized by the above. In the driving assistance information presentation device according to any one of claims 1 to 5,
The driving support information presentation device further includes arrival interval specifying means for specifying an arrival interval that is an interval until the host vehicle reaches the predetermined location,
The control means generates the driving support information in consideration of the arrival interval specified by the arrival interval specifying means in the driving support information presentation process;
A driving support information presentation device characterized by the above. In the driving assistance information presentation device according to claim 6,
The control means includes
According to the arrival interval specified by the arrival interval specifying means, the positional relationship specifying processing is performed as a switching timing that is a timing for switching the driving support information presented through the presenting means to the new driving support information. And further executing a timing specifying process for specifying based on the positional relationship specified in
In the driving support information presentation process, when the arrival interval specified by the arrival interval specifying means has reached the switching timing specified in the timing specifying process, the driving support information corresponding to the arrival interval is Presenting via the presenting means;
A driving support information presentation device characterized by the above. In the driving assistance information presentation device according to any one of claims 1 to 7,
The control means further executes a traffic accident scene prediction process for predicting a traffic accident scene that is most likely to occur in the predetermined location based on the positional relation specified in the positional relation specifying process, and the driving support In the information presentation process, the driving support information is generated in consideration of the traffic accident scene predicted in the traffic accident scene prediction process.
A driving support information presentation device characterized by the above. In the driving assistance information presentation device according to claim 8, which refers to claim 5,
The driving support information includes an expanded classification of perceptual functions to which information indicating the state of the own vehicle or the surroundings of the own vehicle belongs, an information provision classification to which information for a driver to smoothly drive, and the traffic accident scene prediction Information that indicates the risk of occurrence of traffic accidents related to traffic accidents and the warning category to which information to call attention for avoiding traffic accidents related to traffic accidents predicted in processing belongs Are classified as warning categories,
In the driving support information presentation process, the control unit specifies a classification of the driving support information according to the risk calculated in the risk calculation process, and sets the driving support information belonging to the specified class to the driver. Presenting,
A driving support information presentation device characterized by the above. In the driving assistance information presentation device according to claim 8, which refers to claim 6,
The driving support information includes an expanded classification of perceptual functions to which information indicating the state of the own vehicle or the surroundings of the own vehicle belongs, an information provision classification to which information for a driver to smoothly drive, and the traffic accident scene prediction Information that indicates the risk of occurrence of traffic accidents related to traffic accidents and the warning category to which information to call attention for avoiding traffic accidents related to traffic accidents predicted in processing belongs Are classified as warning categories,
In the driving support information presentation process, the control unit specifies a classification of the driving support information according to the arrival interval specified by the arrival interval specifying unit, and presents the driving support information belonging to the specified classification to the driver To do,
A driving support information presentation device characterized by the above. In the driving assistance information presentation device according to any one of claims 6 to 8, wherein the claim 5 or the claim 5 is cited.
The driving support information includes a recognition support information classification to which information indicating the state of the own vehicle or a state around the own vehicle belongs, a determination support information classification to which information for avoiding a traffic accident belongs, and a driver of the own vehicle has a traffic accident. Is classified into operation support information classification to which information indicating an operation to be performed to avoid
In the driving support information presentation process, the control unit specifies a classification of the driving support information according to the risk calculated in the risk calculation process, and sets the driving support information belonging to the specified class to the driver. Presenting,
A driving support information presentation device characterized by the above. In the driving assistance information presentation device according to claim 6 or claim 7 quoting claim 6 or claim 6,
The driving support information includes a recognition support information classification to which information indicating the state of the own vehicle or a state around the own vehicle belongs, a determination support information classification to which information for avoiding a traffic accident belongs, and a driver of the own vehicle has a traffic accident. Is classified into operation support information classification to which information indicating an operation to be performed to avoid
In the driving support information presentation process, the control unit specifies a classification of the driving support information according to the arrival interval specified by the arrival interval specifying unit, and presents the driving support information belonging to the specified classification to the driver To do,
A driving support information presentation device characterized by the above. In the driving assistance information presentation device according to any one of claims 1 to 12,
The presenting means presents various information to the user by displaying information using a head-up display,
A driving support information presentation device characterized by the above.   The program for functioning a computer as the said control means with which the driving assistance information presentation apparatus in any one of Claims 1-13 is provided. Based on the moving body information including information indicating the position and traveling direction of the moving body, driving assistance information that is information for avoiding a traffic accident that occurs in the host vehicle when traveling in a predetermined place is generated, and In the driving assistance information presentation method to be presented,
A mobile body information receiving step for receiving the mobile body information of a mobile body existing around the host vehicle by wireless communication from the outside of the host vehicle;
A host vehicle information acquisition step of acquiring host vehicle information including information indicating the position and traveling direction of the host vehicle from the outside of the host vehicle or a device mounted on the host vehicle;
Based on the moving body information received in the moving body information receiving step and the own vehicle information acquired in the own vehicle information acquisition step, the relative position and relative of the moving body and the own vehicle around the own vehicle A positional relationship specifying step for specifying a positional relationship indicating a target course;
A driving support information presentation step of generating the driving support information according to the positional relationship calculated in the positional relationship specifying step, and presenting the generated driving support information to a driver;
A driving support information presentation method characterized by comprising: