JP2007121031A - Vehicular information display system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular information display system which allows a user while driving to obtain necessary information including lane information about a lane which should be traveled at an intersection and route information about a guided route quickly and easily. <P>SOLUTION: When a branch point subjected to lane display which can display a traveling lane when being approached exists between a right/left-turn-expected branch point at which either a right turn or a left turn is expected and a present position, a lane position image 3 indicating the position of a recommended traveling lane out of a plurality of traveling lanes at the branch point subjected to lane display and a route direction image 2 indicating a right/left-turn direction expected at the right/left-turn-expected branch point are displayed adjacent to each other on a windshield WS of a vehicle. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a vehicle information display device that displays an image on a windshield of a vehicle.

  A head-up display (HUD) is known as a device for displaying an image of a meter or the like on a vehicle instrument panel on a windshield. This is because the image of a meter or the like is projected onto the windshield, and the image reflected on the windshield is made incident on the driver's eyes so that the image is formed in front of the windshield so that the driver can see the front view. A meter or the like can be visually recognized without taking the eyes off.

JP 2005-189725 A JP 2005-199992 A

  By the way, in Patent Documents 1 and 2, using HUD, during the route guidance by the navigation function, the direction in which the lane can travel at the intersection, the lane information that guides the lane to be traveled, and the like are displayed above the user's front view. On the other hand, an invention is disclosed in which route information indicating a route to be guided by an arrow or a distance is displayed below the user's forward view.

  However, in order for a driving user to grasp both pieces of information during route guidance, it is necessary to confirm the display that is distributed vertically by moving the line of sight greatly, which is very complicated for the user. It was. Further, when arrows indicating lanes to be traveled and guide routes are displayed in an up-and-down direction, it is difficult for the user to easily understand the relationship.

  The present invention has been made in view of the above problems, and a driving user can quickly and easily grasp necessary information of lane information regarding a lane to be traveled at an intersection or route information regarding a guidance route. An object of the present invention is to provide an information display device for a vehicle that can be used.

Means for Solving the Problems and Effects of the Invention

In order to solve the above problems, an information display device for a vehicle according to the present invention includes:
Storage means for storing road data;
Position detecting means for detecting the current position of the vehicle;
A route setting means for setting a recommended route to the destination;
A plurality of driving lanes on the route between the planned right / left turn point and the current position based on the planned right / left turn direction at the planned left / right turn point where any of the right / left turns is planned on the recommended route Recommended driving lane determining means for determining a recommended driving lane for recommending driving from,
If there is a lane display target branch point that can display the travel lane between the planned left or right turn point and the current position, the position of the recommended travel lane among the multiple travel lanes at the target lane display target branch point A display control means for displaying the lane position image shown and the route direction image showing the right / left turn direction planned at the right / left turn planned branch point and displaying them on the windshield of the vehicle,
It is characterized by providing.

  According to the present invention, when there is a lane display target branch point between the planned left / right turn point and the current position, the lane position image and the route direction image are arranged adjacently and displayed on the windshield of the vehicle. Therefore, the user simply tilts his / her line of sight to the area with forward view without moving his / her line of sight. It is possible to immediately and easily grasp the information on the direction of the left / right turn planned at the branch point. In addition, since the lane position image and the route direction image are adjacent to each other, the recommended driving lane is approached in that direction because a right turn or a left turn is planned at the previous right-left turn planned branch point. The user can easily grasp such a relationship.

  Next, in the vehicle information display device of the present invention, the display control means includes a lane position image in which arrow images indicating travel designation directions respectively corresponding to a plurality of travel lanes at a lane display target branch point are arranged on the left and right. The arrow image corresponding to the recommended driving lane is displayed with emphasis over the remaining arrow images, and the route direction image is displayed as an arrow image indicating the right / left turn direction planned at the planned right / left turn branch point. The lane position image can be configured to be displayed in a form different from the arrow image.

  According to the above-described present invention, the lane position image is represented as an arrow image indicating a travel designation direction corresponding to each of a plurality of travel lanes at a lane display target branch point. It is possible to immediately and easily grasp the overall structure of a plurality of travel lanes such as the designated travel direction and positional relationship. Further, by highlighting the arrow image corresponding to the recommended travel lane, the position of the recommended travel lane and the designated travel direction in the plurality of travel lanes can be immediately and easily grasped. In addition, the arrow image indicating the right-left turn direction planned at the right-left turn planned branch point is represented in a form different from the arrow image of the lane position image, so that the user can move the arrow in the lane position image. Even if the image and the arrow image in the route direction image are adjacent to each other, they can be accurately grasped without misidentifying them.

  Next, in the vehicle information display device of the present invention, the display control means can be configured to display the route direction image adjacently arranged on the side corresponding to the front of the lane position image in the traveling direction.

  According to the present invention, by arranging the route direction image adjacent to the side corresponding to the front of the lane position image in the traveling direction, the user can select the recommended traveling lane at the lane display target branch point and the planned left / right turn point. It is easy to intuitively understand the correspondence with the direction of turning left and right. That is, it is easy to understand intuitively that there is a branch point that turns right and left after proceeding along the recommended travel lane, and the recommended travel lane is approaching in that direction because there is a branch point that makes a right and left turn That is also intuitive.

  In the vehicle information display device of the present invention, the display control means can be configured to display the lane position image in the lower stage and the route direction image adjacent to the upper stage and display it in the lower area of the windshield. .

  According to the present invention, since the lower region of the windshield is a portion that is easier to see for the user and does not interfere with the forward field of view, the user can display the lane position image and the route direction image in the lower region. By simply finely moving the line of sight from the front field of view to the lower region of the windshield, the information as described above can be grasped more immediately and easily. In this case, the lane position image is arranged in the lower stage, and the route direction image is arranged adjacent to the upper stage, so that the user can easily associate the front in the driving direction with the actual driving direction in the front view and the front in the driving direction in the lane position image. Therefore, it becomes easier to intuitively understand the correspondence relationship between the recommended travel lane at the lane display target branch point and the right / left turn direction at the future right / left turn planned branch point.

  Next, in the vehicle information display device of the present invention, the display control means displays the route direction image to the planned right / left turn branch point together with the arrow image indicating the right / left turn direction planned at the right / left turn planned branch point. It can be configured to display as including an image showing the distance.

  According to the present invention, the route direction image includes an image showing the distance to the right / left turn planned branch point, so that the user can make the right / left turn specific as well as the right / left turn direction at the previous right / left turn planned branch point. It is also possible to easily grasp the specific timing.

  Next, in the vehicle information display device of the present invention, the display control means includes a plurality of travels at the right / left turn planned branch point when no lane display target branch point exists between the right / left planned branch point and the current position. A right / left turn lane position image indicating the position of the recommended travel lane in the lane and a route direction image may be arranged adjacently and displayed on the windshield of the vehicle.

  According to the present invention, when there is no lane display target branch point between the right / left turn planned branch point and the current position, that is, when the vehicle is approaching the right / left turn planned branch point, By displaying the right / left turn lane position image showing the recommended driving lane position together with the route direction image showing the right / left turn direction, the user should prepare for the right / left turn at the planned right / left turn branch point by checking both images Can do.

  Next, in the vehicle information display device of the present invention, the display control means omits the display of the right / left turn lane position image when the distance between the planned right / left turn branch point and the current position is equal to or less than a certain value. The route direction image can be enlarged and displayed.

  According to the present invention, when there is no lane display target branch point between the right / left turn planned branch point and the current position and the vehicle approaches the right / left turn planned branch point, the vehicle has already moved to the recommended travel lane. The left / right turn lane position image showing the recommended driving lane position can be omitted, while the route direction image showing the right / left turn direction can be enlarged and displayed. Can grasp the direction of the right-left turn at the right-left turn planned branch point more accurately.

  Next, in the vehicle information display device of the present invention, the display control means displays a route direction image to be displayed when the distance between the right / left turn planned branch point and the current position is reduced below a predetermined value, and the right / left turn planned branch. A schematic image representing the branch structure of the points can be configured to be displayed as a superposition of an arrow image indicating the right / left turn direction planned at the planned right / left turn branch point.

  According to the present invention, the route direction image is displayed as a schematic image representing the branch structure of the right / left turn planned branch point on which the arrow image indicating the right / left turn direction is superimposed, so that the user can branch at the branch point. You can make a right or left turn while understanding the structure and knowing which route you should turn left or right.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a cockpit diagram of a vehicle in which a vehicle information display device according to an embodiment of the present invention is incorporated. When there is a lane display target branch point that can display a driving lane when approaching between the planned right or left branch point where either a right or left turn is planned and the current position, Adjacent to the lane position image 3 indicating the position of the recommended travel lane among the plurality of travel lanes at the lane display target branch point and the route direction image 2 indicating the right / left turn direction planned at the planned right / left turn branch point Arranged and displayed. Details of each will be described below.

  The branch point has a plurality of escape routes with respect to one approach route, and is a concept including not only an intersection but also a non-intersecting three-way or T-junction. In the following, description will be made by using representative intersections. A right / left turn is to select a route other than a straight line at a branching point, and a route other than a straight line is a route that is scheduled to travel with a turn signal.

(1) Configuration The configuration of the vehicle information display device 1 will be described. FIG. 5 is an electrical block diagram of the vehicle information display device 1, and FIG. 6 is a functional block diagram of the vehicle information display device 1. A vehicle information display device (vehicle information display system) 1 sets a recommended route to a destination and guides it, and also determines a recommended travel lane at an intersection, and a lane position image on the windshield WS. 3 and a HUD display device 7 for displaying a route direction image 2.

(1-1) Navigation Device The navigation device 8 has a structure in which a navigation ECU 80 is connected to a position detector 5 that detects the current position of the vehicle and an HDD (Hard Disk Drive) device 4 that stores map data 4D. Have. Here, the navigation ECU 80 corresponds to the route setting means and recommended travel lane determination means referred to in the present invention, the position detector 5 corresponds to the position detection means referred to in the present invention, and the HDD device 4 corresponds to the storage means referred to in the present invention. In addition, although not shown, the navigation device 8 receives a display device such as an LCD for displaying the current position mark of the vehicle, the recommended route, and map data in an overlapping manner, and an operation input from the user. A group of operation switches for connecting, a speaker for performing voice guidance, and the like are connected.

  The navigation ECU (Electronic Control Unit) 80 includes a microprocessor to which a CPU 81, a ROM 82, a RAM 83, and an input / output port (I / O port) 84 are connected via a bus 87. The serial communication bus 9 that forms the in-vehicle network and the internal bus 87 are connected via a serial communication interface (I / F) 85. In addition, a buffer memory 86 provided separately from the RAM 83 is provided for temporarily storing communication data. The ROM 82 stores a program executed by the CPU 81 and data necessary for the program. The RAM 83 is used as a work area when the CPU 81 executes a program.

  The HDD 4 stores map data 4D. Further, the map data 4D may be stored in a recording medium such as a CD-ROM, a DVD-ROM, or a memory card and input from the drive. Here, the map data 4D includes road data, background data, attribute data, and the like. The road data includes mutually related shape information and phase information. The phase information describes the intersection (node) and the connection (link) between the intersections, and is used for setting a recommended route. In addition, information on travel lanes at the intersection is also included. For example, a vehicle having a plurality of travel lanes in the approach direction of the intersection is set as a lane display target intersection that displays the travel lane when the vehicle approaches.

  The link and node will be described. A link divides each road on the map into multiple nodes such as intersections, branches, and merge points, and defines each link as a link. Is done. Link data includes a unique number (link ID) that identifies the link, a link length that indicates the length of the link, coordinates of the start and end of the link, road name, road type, road width, number of lanes (lanes), travel Each lane is composed of data such as a traveling direction (for example, a straight traveling direction, a right direction, a left direction, etc.) and an arrangement of the traveling lane. On the other hand, the node describes a node ID, a node coordinate, a node name, and a link ID of all the links connected to the node for each node where roads on the map intersect, branch, and merge. It consists of each data such as the connection link ID, the number of traveling lanes at any of the branching point, the junction point, and the intersection, the traveling direction for each traveling lane, and the arrangement of the traveling lanes.

  The position detector 5 includes a GPS receiver 51 that receives GPS radio waves transmitted from GPS (Global Positioning System) satellites by an antenna 511 and acquires position data, a geomagnetic sensor 52 that detects an orientation based on geomagnetism, A gyroscope 53 that detects an angular velocity and calculates an azimuth and a distance sensor 54 that detects a travel distance and acquires distance data are configured to complement each other by the data acquired by 51 to 54, respectively. It detects the current position of the vehicle and accurately measures the mileage.

  The navigation ECU 80 has a function of calculating a recommended route from the current location to the destination for a destination input by a user from an operation switch group or the like (not shown). The method of automatically setting the recommended route in this way is, for example, cost calculation by the well-known Dijkstra method, that is, a cost value attached to each link in consideration of the link length, road type, road width, etc. Is used to calculate the route to reach the destination at the lowest cost. In addition, in the recommended route set in this way, an intersection where a right or left turn is planned is set as a right or left planned intersection. A left or right turn is a case where an exit route (link) other than straight (road) is selected for the approach route (link) to the intersection (node) of interest, and whether or not it is a road Is determined in consideration of the change in road type, link attribute, route name and route number, and the width relationship of entry / exit / non-route.

  The navigation ECU 80 determines a recommended travel lane from a plurality of travel lanes on the route between the planned right / left turn branch point and the current position based on the planned right / left turn direction at the planned left / right turn point. A known method can be used as a method for determining the recommended travel lane in this way.

  For example, as shown in FIG. 2, when a right / left turn (right turn in the example) is planned at the previous right / left turn planned branch point BX, an intersection (lane) included in a predetermined distance (about 700 m in the example) before that In the display target intersections (AX1 to AX3) AX1 to AX3, “recommended driving” is selected from the driving lanes in front of the driving lane in which the specified driving direction is only the right / left turn direction among the plurality of driving lanes in the approach direction. Lane "(see FIGS. 2D to 2F; image 3A represents a recommended travel lane). In other words, among the driving lanes in which the specified travel direction includes straight travel (including straight travel lanes, including those that use both straight travel and right / left turns), the travel lane closest to the right / left turn direction is recommended. “Running lane”.

  In addition, when the lane display target intersection does not exist between the lane display target intersection AX3 and the planned left / right turn intersection BX, a plurality of traveling lanes in the approach direction at the right / left turn planned intersection BX are selected. The travel lane (right / left turn lane) in which the travel designation direction is only the right / left turn direction is referred to as a “recommended travel lane” (see FIG. 2C).

  The above navigation device 8 uses the information related to the recommended route such as which intersection is scheduled to turn right and left as route information, and the information related to the recommended travel lane such as which travel lane is the recommended travel lane at the intersection. Information is sequentially provided to the HUD display device 7 described below.

(1-2) HUD Display Device The HUD display device 7 has a structure in which a HUD display 6 that displays an image on the windshield WS is connected to the HUD ECU 70.

HUD (Head UP Display) ECU (Electronic Control)
(Unit) 7 includes a microprocessor in which a CPU 71, ROM 72, RAM 73, and input / output port (I / O port) 74 are connected via a bus 77. In addition, the serial communication bus 9 forming the in-vehicle network and the internal bus 77 are connected via a serial communication interface (I / F) 75. In addition, a buffer memory 76 provided separately from the RAM 73 is provided for temporarily storing communication data. The ROM 72 stores a program executed by the CPU 71 and data necessary for the program. The RAM 73 is used as a work area when the CPU 71 executes a program.

  When receiving the display command from the HUD ECU 70, the HUD display 6 displays the route direction image 2 and the lane position image 3 on the windshield WS of the vehicle based on the display command. As shown in FIG. 9, the HUD display 6 is disposed inside an instrument panel IP that extends from the lower side of the windshield WS to the inside of the vehicle, and displays a switch image 2 and an operation response image 3. When the backlight 63 irradiates the liquid crystal panel 62 with light, the light transmitted through the liquid crystal panel 62 enters the windshield WS and is reflected toward the eyes of the driver DR seated in the driver's seat. The image 2 and the lane position image 3 are captured by the driver DR as virtual images.

  The ROM 72 of the HUD ECU 70 stores various information necessary for displaying the route direction image 2 and the lane position image 3 by the HUD display 6. For example, the display shape and layout information of the route direction image 2 and the lane position image 3 as described later are stored.

  A display example of the route direction image 2 and the lane position image 3 will be described. As shown in FIG. 2, when the distance between the current position of the vehicle M and the planned left / right intersection BX is equal to or less than a predetermined distance (about 700 m in the example), the HUD display device 7 approaches the planned left / right intersection BX. Depending on the situation (first to fifth sections), these images 2 and 3 are combined and displayed on the windshield WS of the vehicle so that the lane position image 3 is adjacent to the lower stage and the route direction image 2 is adjacent to the upper stage (FIG. 1).

  The route direction image 2 and the lane position image 3 are displayed in the lower area of the windshield WS at the front of the user seated on the driver's seat, that is, at the position corresponding to the front of the steering wheel for the user. By being displayed in front of the user in this way, the user can easily intuitively understand directions such as the arrow direction shown in the route direction image 2 and the lane position image 3.

  FIG. 3 shows an enlarged view of the route direction image 2 and the lane position image 3. The figure shows the display in the first section. The lane position image 3 shows the position of the recommended travel lane among the plurality of travel lanes at the lane display target intersection AX1. That is, the lane position image 3 uses the lane structure of the approach route to the lane display target intersection AX1 by representing the plurality of traveling lanes in the approach direction at the lane display target intersection AX1 by the arrow image 31 and the lane marking image 32. By highlighting the travel lane corresponding to the recommended travel lane (recommended travel lane image 3A), the position of the recommended travel lane among the plurality of travel lanes is shown to the user.

  The arrow images 31 respectively correspond to a plurality of travel lanes in the approach direction at the lane display target intersection AX1, and the direction indicated by the arrow represents the travel designation direction of each travel lane. Further, by arranging the arrow images 31 to the left and right, the traveling lane represented by the arrow image 31 matches the actual traveling lane as viewed from the user. Further, the arrow image 31 is alternately arranged with the lane marking images 32 representing the lane markings of the traveling lane, so that a region sandwiched between the set of lane marking images 32 represents one traveling lane.

  In addition, the arrow image (recommended travel lane image) 3 </ b> A corresponding to the recommended travel lane is highlighted than the remaining arrow image 31. The highlighting can be performed by changing the normal display state of the arrow image 31. Specifically, the arrow image 31 is displayed with the lightness and darkness of the arrow image 31 reversed, or by changing the hue and saturation. This can be done by displaying, flashing, or combining them. In the present embodiment, the recommended travel lane image 3 </ b> A is displayed by inverting the brightness of the arrow image 31 in the region sandwiched between the lane marking images 32.

  The route direction image 2 shows the distance to the right / left turn direction and the right / left turn planned intersection BX scheduled at the right / left turn planned intersection BX. Here, since the upper side of the lane position image 3 displayed on the windshield WS is forward in the traveling direction, the route direction image 2 is disposed adjacent to the upper side of the lane position image 3.

  In addition, the route direction image 2 includes an arrow image 21 indicating the right / left turn direction planned at the right / left planned intersection BX. The arrow image 21 has a shape that is bent in a right-left turn direction from a line portion that extends straight upward so that the right-left turn can be easily understood.

  Further, the arrow image 21 is represented in a form different from the arrow image 31 in the lane position image 3 so that the user is not confused. That is, in the lane position image 3, the lane marking images 32 are displayed in parallel with each other, and the line portion of the arrow image 31 is two-dimensionally expressed with the same width, whereas in the route direction image 2 The width of the line portion of the arrow image 21 becomes narrower as it goes upward, and is represented three-dimensionally.

  Further, the route direction image 2 includes an image 22 indicating the distance from the current position of the vehicle M to the planned left / right turn intersection BX together with the arrow image 21. The image 22 indicating the distance can also indicate the distance from the lane display target intersections AX1 to BX to the right-left planned intersection BX, and whenever the vehicle M passes the lane display target intersections AX1 to AX3, You may comprise so that the distance display from the display object intersection AX1-3 which passed through to the right-left planned intersection BX may be updated.

  A display form of the lane position image 3 and the route direction image 2 according to the approaching situation to the left / right planned intersection BX of the vehicle M shown in FIGS. 2 (a) to 2 (f) will be described. In the case where there are lane display target intersections AX1 to AX1 between the right and left turn planned intersection BX on the recommended route SR and the vehicle M, first, in the first section before the first lane display target intersection AX1, FIG. ), The lane position image 3 shows the lane structure of the intrusion route to the first lane display target intersection AX1, and highlights the recommended travel lane (3A).

  Next, when the vehicle M passes through the first lane display target intersection AX1, in the second section between the first lane display target intersection AX1 and the second lane display target intersection AX2, FIG. As shown, the lane position image 3 shows the lane structure of the intrusion route to the second lane display target intersection AX2, and highlights the recommended travel lane (3A). Also, the third section is displayed in the same manner as shown in FIG.

  When the vehicle M passes the third lane display target intersection AX3, in the fourth section, as shown in FIG. 2C, the lane position image (right / left turn lane position image 3 ′) is a right / left turn planned intersection. The lane structure of the intrusion route to the BX is shown, and the recommended travel lane (here, the right turn exclusive lane becomes the recommended travel lane) is highlighted (3A). In the present embodiment, since the traveling lane is displayed even when approaching the left / right planned intersection BX, this is also one of the lane display target intersections.

  After that, when the vehicle M further approaches the left / right planned intersection BX (in the example, about 300 m), the display of the lane position image 3 is omitted in the fifth section, as shown in FIG. A direction image 2A is represented. This enlarged route direction image 2A is obtained by superimposing an arrow image 25 indicating a right / left turn direction planned at a planned right / left turn intersection BX on a schematic image 26 representing a branch structure of a right / left turn planned intersection BX. It is configured.

  Here, the arrow image 25 has a shape that is bent in the right-left turn direction from the upwardly extending line portion that represents a straight line in the same manner as described above, and thereby, the intrusion route and the escape from the schematic image 26 that represents the branch structure. It overlaps with the part corresponding to the route and covers them.

  Further, as shown in FIG. 4, the arrow image 25 performs a flow display in which the inside of the frame of the arrow image 25 is lighted stepwise in the direction of the arrow. This makes it easier for the user to understand the direction of turning left and right. That is, in the flow display, the arrow image 25 is only a frame as shown in FIG. 4 (a), and the inside is not lit, and then stepwise in the direction of the arrow as shown in FIGS. 4 (b) to 4 (d). As shown in FIG. 4E, the entire area of the arrow image 25 is lit up. Thereafter, returning to FIG. 4A, the same lighting process is repeated.

  In addition to the route direction image 2 and the lane position image 3, the HUD display device 70 also displays various information such as the vehicle speed calculated based on the sensor signal from the vehicle speed sensor, below the windshield WS. Display these together in the area.

(2) Operation The operation of the vehicle information display device 1 will be described. FIG. 8 is a flowchart showing processing performed by the navigation device 8 and the HUD display device 7.

  First, when the distance from the current position to the planned left / right intersection BX is equal to or less than a predetermined distance (1: about 700 m in the example) (T1: YES), the navigation device 8 moves in the right / left turn direction at the planned right / left turn intersection BX. Based on this, a recommended travel lane in the route from the current position to the planned left / right intersection BX is determined (T2). The HUD display device displays route information related to the right / left turn direction and the distance to the left / right planned intersection BX, and lane information related to the lane structure and recommended travel lane position in the nearest lane display target intersections AX1 to AX3. 7 (T3).

  On the other hand, when receiving the route information and the lane information (S1: YES), the HUD display device 7 displays the above-described route direction image 2 and lane position image 3 on the windshield WS based on these information (S2; FIG. 2 (f), FIG. 3).

  Then, the navigation device 8 continues the route information and the lane until the vehicle approaches the right / left planned intersection BX and the distance from the current position to the planned right / left intersection BX is equal to or less than a predetermined distance (2: about 300 m in the example). Information is sequentially transmitted to the HUD display device 7 (T4: NO → T3 → T4). During this time, as shown in FIG. 2, since the nearest lane display target intersections AX1 to AX1 to 3 (the latest in the traveling direction) change depending on the traveling state of the vehicle M, the lane information transmitted by the navigation device 8 is the lane display target intersections AX1 to AX1. The target changes each time it passes 3.

  On the other hand, the HUD display device 7 displays the lane position image 3 based on the sequentially received lane information (S3: NO → S1: YES → S2 → S3). Thereby, the lane position image 3 is updated as needed to represent the lane structure of the latest lane display target intersections AX1 to AX3 (FIG. 2 (f) → (e) → (d) → (c)).

  Thereafter, when the distance from the current position to the planned left / right intersection BX is equal to or less than a predetermined distance (2: about 300 m in the example) (T4: YES), the navigation device 8 issues an enlarged display command for the route direction image 2 to the HUD display device. 7 (T5).

  On the other hand, when receiving the enlarged display command (S3: YES), the HUD display device 7 omits the display of the lane position image 3 and displays the enlarged route direction image 2A (S4; FIG. 2). (b), FIG. 4).

  When the above processing is completed, the navigation device 8 and the HUD display device 7 return to the beginning (→ T1, S1). When the vehicle approaches the next right / left turn scheduled intersection BX up to a predetermined distance (1: about 700 m in the example) (T1: YES), the same processing is performed again.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to these forms, In the range of the same identity as the invention embodied in these, it can change suitably and can implement.

Cockpit diagram of a vehicle incorporating a vehicle information display device according to an embodiment of the present invention The figure which shows the example of a display of the route direction image and lane position image corresponding to the present position of a vehicle The figure showing the example of a display of a route direction image and a lane position image The figure which shows the example of a display of the route direction image at the time of right and left turn Electric block diagram of the vehicle information display device of the present invention Functional block diagram of the vehicle information display device of the present invention Explanatory diagram of HUD display The flowchart showing the process which the information display apparatus for vehicles of this invention performs.

Explanation of symbols

1 vehicle information display device 2 route direction image 3 lane position image 4 HDD device (storage means)
4D map data 5 Position detector (position detection means)
6 HUD display 62 Liquid crystal panel 63 Backlight 7 HUD display device 70 HUDECU (display control means)
8 Navigation device 80 Navigation ECU (route setting means, recommended travel lane determining means)
WS Windshield

Claims (8)

Storage means for storing road data;
Position detecting means for detecting the current position of the vehicle;
A route setting means for setting a recommended route to the destination;
A plurality of runs on the route between the planned right / left turn point and the current position based on the planned right / left turn direction at the planned right / left turn point where one of the right / left turns is planned on the recommended route Recommended driving lane determining means for determining a recommended driving lane that recommends driving from the lane;
When there is a lane display target branch point that can display a travel lane between the planned left and right turn point and the current position, the recommended travel lane among the plurality of travel lanes at the target lane display target branch point A display control means for displaying a lane position image indicating a position and a route direction image indicating a right-left turn direction planned at the planned right-left turn branch point and displaying them on a windshield of the vehicle;
A vehicle information display device comprising:   The display control means displays the lane position image as an arrow image indicating a travel designation direction corresponding to each of a plurality of travel lanes at the lane display target branch point, and corresponds to the recommended travel lane. The arrow image indicating the right / left turn direction planned at the planned left / right turn branch point is the arrow image of the lane position image. The vehicle information display device according to claim 1, wherein the vehicle information display device is displayed as being expressed in a different form.   3. The vehicle information display device according to claim 1, wherein the display control unit displays the route direction image adjacently on a side corresponding to the front of the lane position image in the traveling direction.   4. The vehicle information display device according to claim 3, wherein the display control means displays the lane position image in the lower stage and the route direction image adjacent to the upper stage and displays it in a lower area of the windshield.   The display control means displays the route direction image as including an image indicating a distance to the planned right / left turn branch point together with an arrow image indicating a right / left turn direction planned at the planned right / left turn branch point. The vehicle information display device according to any one of claims 1 to 4.   The display control means, when the lane display target branch point does not exist between the right / left turn planned branch point and the current position, the recommended travel lane among the plurality of travel lanes at the right / left turn planned branch point The vehicle information display device according to any one of claims 1 to 5, wherein a right / left turn lane position image indicating the position of the vehicle and the route direction image are adjacently displayed and displayed on a windshield of the vehicle.   The display control means omits the display of the right / left turn lane position image when the distance between the right / left turn planned branch point and the current position is equal to or smaller than a predetermined value, and enlarges and displays the route direction image. The vehicle information display device according to claim 6.   The display control means displays the route direction image displayed when the distance between the right / left turn planned branch point and the current position is reduced below a certain value as a schematic image representing a branch structure of the right / left turn planned branch point. The vehicle information display device according to claim 7, wherein the vehicle information display device displays the superimposed images of the arrows indicating the direction of the left / right turn planned at the planned right / left turn branch point.

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