JP5194816B2 - Vehicle information display device and information display method - Google Patents

Description

  The present invention relates to a vehicle information display device and an information display method for displaying information around a host vehicle and presenting it to a driver.

In recent years, for the purpose of realizing safe and easy driving, various information display devices that display information around the host vehicle and provide the information to the driver have been proposed in Patent Document 1 below. Patent Document 1 discloses a parking assistance device and a parking assistance method for presenting a parkingable range for the purpose of realizing assistance that allows the driver to easily guide the vehicle to a target parking position. Is disclosed.
JP 2006-31440 A

  In the technique described in Patent Document 1 described above, if there is a difference between the driving scene assumed by the designer and the driving scene that the driver himself feels in the scene, the driver in the driving scene. Information provided to may not be appropriate information.

  Therefore, the present invention has been proposed in view of the above-described circumstances, and is a vehicle information display device and information for displaying information that makes it easy for the driver to understand the vehicle feeling in a form that matches the driver's feeling. An object is to provide a display method.

  When presenting information to a driver, the present invention is based on a distance to an object existing around the host vehicle, a host vehicle position in a travel lane on which the host vehicle travels, and a travel environment in which the host vehicle travels. Depending on the driving scene determined to be one of a plurality of predetermined driving scenes, either the distance to the object existing around the host vehicle or the position of the host vehicle in the traveling lane By determining this as the content of the presentation information presented to the driver, the above-mentioned problems are solved.

  According to the vehicle information display device and the information display method according to the present invention, by determining the driving scene of the host vehicle when presenting the distance to the object or the position of the host vehicle, in a form that matches the sense of the driver. Information that makes it easy for the driver to grasp the vehicle feeling can be displayed.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[First Embodiment]
[Configuration of vehicle information display device]
As shown in FIG. 1, a vehicle information display apparatus according to a first embodiment to which the present invention is applied includes a relative distance detection unit (object detection means) 10 that detects a relative distance to an object existing around the host vehicle. The vehicle position detection unit (vehicle position detection unit) 11 that detects the vehicle position, the travel environment detection unit (travel environment detection unit) 12 that detects the travel environment in which the host vehicle is traveling, and the driver An information usage estimation unit (information usage estimation means) 13 that estimates whether or not the driver is using the presented visual presentation information, and driving that determines the driving scene in which the vehicle is traveling A scene determination unit (driving scene determination unit) 14, a presentation information determination unit (presentation information determination unit) 15 that determines the contents of visual presentation information to be presented to the driver, and visual presentation information to the driver Visual information presentation unit (display means) 16 Obtain.

  The relative distance detection unit 10 includes a sensor that detects an object existing around the host vehicle, such as an ultrasonic sensor. When the relative distance detection unit 10 detects an object, the relative distance detection unit 10 detects a relative distance to the object.

  Here, at the time of garage parking (parallel parking), the driver's interest is other vehicles, obstacles, walls, and the like that are adjacent to the left and right or the rear of the parking frame to be parked. On the other hand, when these objects do not exist, the driver's interest is the position of the vehicle in the left-right direction and the front-rear direction with respect to the parking frame. In parallel parking, the driver's interest is other vehicles, obstacles, walls adjacent to the front and rear of the parking frame to be parked, and other vehicles, obstacles, walls, etc. existing on the side surface in the backward direction of the vehicle. On the other hand, when these objects do not exist, the driver's interest is the position and angle of the vehicle in the front-rear direction with respect to the parking frame. Furthermore, the driver's interest during parallel running is an angle relative to the position of another vehicle adjacent to the host vehicle. Furthermore, the driver's interest when traveling on a narrow road is an obstacle or a wall positioned on the left and right of the traveling vehicle.

  Therefore, as shown in FIG. 2, the relative distance detection unit 10 is an ultrasonic sensor that detects an object in the left-right direction of the host vehicle, one on each of the left and right sides of the front of the host vehicle, and It is assumed that there are a total of four each. Thereby, the relative distance detection part 10 can detect the object in object detection range SN1, SN2, SN3, SN4 by an ultrasonic sensor. Further, the relative distance detection unit 10 has two sensors, one for each of the front and rear of the host vehicle, as object sensors in the front-rear direction of the host vehicle, and has object detection ranges SN5 and SN6. ing. The object distance information detected by the relative distance detection unit 10 is supplied to the driving scene determination unit 14 and the presentation information determination unit 15 and is used as information presented to the driver.

  The own vehicle position detection unit 11 detects the own vehicle position in a situation where the own vehicle is traveling. Specifically, the host vehicle position detection unit 11 includes a camera and an image analysis circuit, and detects a parking frame and a traveling lane of the host vehicle by analyzing an image captured by the camera. This travel lane corresponds to the width of the vehicle traveling in a parking lot, for example. And the own vehicle position detection part 11 detects the own vehicle position information showing the own vehicle position with respect to the detected parking frame, and the own vehicle position in a travel lane. That is, the own vehicle position detection unit 11 detects the parking frame position, the end position of the traveling lane, the own vehicle position with respect to the parking frame and the traveling lane as coordinate information of a common coordinate system. The own vehicle position information with respect to the parking frame detected by the own vehicle position detection unit 11 is supplied to the driving scene determination unit 14 and the presentation information determination unit 15 and used as information presented to the driver.

  The traveling environment detection unit 12 detects the traveling environment in which the host vehicle is traveling. Specifically, the traveling environment detection unit 12 includes a navigation device including a storage device storing map information and a GPS (Global Positioning System) device, and detects that the position of the host vehicle is in a parking lot. . The travel environment information detected by the travel environment detection unit 12 is supplied to the driving scene determination unit 14.

  The information utilization degree estimation unit 13 estimates whether the driver is using visual presentation information presented to the driver via the visual information presentation unit 16. Specifically, the information usage degree estimation unit 13 includes a gaze direction detection device that detects the gaze direction of the driver. The visual information presentation unit 16 estimates whether or not the driver is using visual presentation information based on the gaze direction detected by the gaze direction detection device.

  For example, when the driver is using the visual information presenting unit 16 during traveling on a curved road, traveling on a narrow road, or concurrently running, the driver's line of sight is displayed on the screen of the visual information presenting unit 16. Stay. Therefore, the information usage estimation unit 13 detects the frequency with which the driver's line of sight stays on the screen of the visual information presentation unit 16 while traveling on a curved road, traveling on a narrow road, or traveling concurrently, and the frequency is It is estimated that the higher the value, the more the driver is using the information. The utilization information estimated by the information utilization degree estimation unit 13 is supplied to the presentation information determination unit 15 and used as information presented to the driver.

  The driving scene determination unit 14 adds the object distance information supplied from the relative distance detection unit 10, the host vehicle position information supplied from the host vehicle position detection unit 11, and the driving environment information supplied from the driving environment detection unit 12. Based on this, various driving scenes in which the vehicle is traveling are determined. Specifically, the driving scene determination unit 14 determines the detection result of the parking frame, the determination result that the own vehicle position is in the parking lot, the state of the transmission of the own vehicle, the operation frequency of the steering wheel of the own vehicle, the curved path The driving scene in which the host vehicle is traveling is determined on the basis of the driving scene determination rule determined in accordance with the radius of curvature, the road width of the traveling lane, or the inter-vehicle distance with another vehicle running alongside the host vehicle.

  First, the driving scene determination unit 14 determines that the parking frame is detected by the camera and image analysis circuit of the host vehicle position detection unit 11 and that the host vehicle position by the navigation device of the traveling environment detection unit 12 is within the parking lot. Based on the result and information on whether or not the transmission of the host vehicle is in the reverse state, it is determined whether or not the driving scene is a parking scene. The driving scene determination unit 14 determines whether the parallel parking scene is based on the relative position between the parking frame and the host vehicle recognized by the host vehicle position detection unit 11 when the transmission is detected to be in the reverse state. Judge whether it is a parallel parking scene. When the driving scene is a parking scene, the driving scene determination unit 14 determines that the driving scene is a garage parking scene when the parking frame detected by the own vehicle position detection unit 11 is substantially orthogonal to the own vehicle. (Parallel parking scene) is determined. On the other hand, when the driving scene is a parking scene, the driving scene determination unit 14 determines that the driving scene is a parallel parking scene when the parking frame detected by the own vehicle position detection unit 11 is substantially parallel to the own vehicle. It is determined that

  Furthermore, the driving scene determination part 14 can also determine whether the parking garage parking scene of the own vehicle is a left-right position adjustment or a front-back position adjustment. Generally, when adjusting the left-right position of the host vehicle with respect to the parking frame in the garage parking, the driver frequently adjusts the steering amount using the steered wheels. Therefore, the driving scene determination unit 14 detects the frequency of steering of the steered wheels by the driver, and when the steering wheel is adjusted with high frequency, the driving scene in which the driver is adjusting the left and right positions. If the adjustment frequency of the steered wheels is low, it is determined that the driver is adjusting the front-rear position of the host vehicle with respect to the parking frame.

  Furthermore, the driving scene determination unit 14 can determine whether the driving scene in which the host vehicle is traveling is a straight traveling scene. Normally, in the case of straight running, the driver's operation of the steering wheel is discrete, and the frequency of the steering wheel operation is low. Therefore, the driving scene determination unit 14 performs frequency analysis by measuring the driver's operation of the steering wheel at a predetermined time. If the frequency of the steering wheel operation is less than a predetermined value as a result of the analysis, the driving scene determination unit 14 performs driving. When the driver determines that the vehicle is traveling on a straight road and the steering wheel operation frequency is equal to or higher than a predetermined value, it is determined that the driver is traveling on a road other than the straight road.

  The driving scene determination unit 14 can also determine whether or not the driving scene in which the host vehicle is traveling is a curved road traveling scene. Usually, when the vehicle is traveling on a curved road with a gentle radius of curvature, the driver operates with the same feeling as that of straight traveling. Therefore, the driving scene determination unit 14 stores a default value (for example, 200R) of a radius of curvature that switches sensibly from straight traveling to curved road traveling, and the traveling environment of the host vehicle detected by the traveling environment detecting unit 12 is stored. If it is a curved road and the radius of curvature is less than the default value, it is determined that the driving scene in which the host vehicle is traveling is a curved road traveling scene.

  Furthermore, the driving scene determination unit 14 can also determine whether the driving scene in which the host vehicle is traveling is a narrow road traveling scene or a parallel traveling scene. Normally, during narrow road driving, when the width of the travel lane becomes a predetermined sensory narrowness, the driver sensuously switches to narrow road driving. Therefore, the driving scene determination unit 14 stores a default value (for example, 3.0 m) of the vehicle width that is sensuously switched to the narrow road traveling, and the driving scene determination unit 14 automatically If the vehicle width is calculated from the vehicle position and the vehicle width is less than the default value, it is determined that the driving scene in which the host vehicle is traveling is a narrow road traveling scene.

  Furthermore, the driving scene determination unit 14 can determine whether or not the driving scene in which the host vehicle is traveling is a parallel traveling scene. During parallel running, usually, when the distance from a vehicle traveling in an adjacent lane becomes a predetermined sensory narrowness, the driver sensuously switches to parallel running. Therefore, the driving scene determination unit 14 stores a default value (for example, 1.5 m) of the inter-vehicle distance that is sensuously switched to parallel running, and a vehicle that travels in an adjacent lane detected by the relative distance detection unit 10. Is less than the default value, it is determined that the driving scene in which the host vehicle is traveling is a parallel traveling scene.

  The driving scene information determined by the driving scene determination unit 14 is supplied to the presentation information determination unit 15 and used as information presented to the driver.

  The presentation information determination unit 15 includes object distance information supplied from the relative distance detection unit 10, host vehicle position information supplied from the host vehicle position detection unit 11, usage information supplied from the information usage degree estimation unit 13, and Based on the driving scene information supplied from the driving scene determination unit 14, the contents of visual presentation information to be presented to the driver are determined.

  Specifically, the driver's interest in adjusting the left and right position of the own vehicle in the parking lot parking scene of the own vehicle is other vehicles, obstacles, walls, etc. adjacent to the left and right of the parking frame to be parked, When these objects do not exist, the position of the own vehicle with respect to the parking frame is the left-right direction position. Therefore, when presenting information for assisting the driver in adjusting the left / right position of the host vehicle in a garage parking scene or the like of the host vehicle, the presentation information determination unit 15 is detected by the relative distance detection unit 10. The minimum distance to an object such as a vehicle, an obstacle, or a wall, that is, detected by the four object detection ranges SN1, SN2, SN3, and SN4 provided on the left and right sides of the host vehicle shown in FIG. The shortest distance among the determined object distances is determined as presentation information. At this time, when no object is detected, the presentation information determination unit 15 determines the minimum value of the distance to the parking frame detected by the own vehicle position detection unit 11 as the presentation information.

  The driver's interest in adjusting the front and rear position of the host vehicle in a parking garage scene of the host vehicle is other vehicles, obstacles, walls, etc. located behind the parking frame to be parked. When it does not exist, it is the position in the front-rear direction of the host vehicle with respect to the parking frame. Therefore, when presenting information for assisting the driver to adjust the front-rear position of the host vehicle in a parking garage scene or the like of the host vehicle, the presentation information determination unit 15 is detected by the relative distance detection unit 10. A distance to an object such as a vehicle, an obstacle, or a wall, that is, a distance detected by one object detection range SN5 provided at the rear of the host vehicle shown in FIG. 2 is determined as presentation information. At this time, when no object is detected, the presentation information determination unit 15 determines the distance to the parking frame detected by the own vehicle position detection unit 11 as the presentation information.

  Furthermore, the driver's interest in adjusting the front / rear position of the host vehicle in a parallel parking scene of the host vehicle is other vehicles, obstacles, walls, etc. adjacent to the front and rear of the parking frame to be parked. If not, it is the position in the front-rear direction of the host vehicle relative to the parking frame. Therefore, when presenting information for assisting the driver to adjust the front-rear position of the host vehicle in a parallel parking scene of the host vehicle, the presentation information determination unit 15 detects the other vehicle detected by the relative distance detection unit 10. And distances to objects such as obstacles and walls, that is, distances detected by the two object detection ranges SN5 and SN6 provided at the front and rear parts of the host vehicle shown in FIG. 2 are determined as the presentation information. At this time, when no object is detected, the presentation information determination unit 15 determines the distance to the parking frame detected by the own vehicle position detection unit 11 as the presentation information.

  Furthermore, as described above, since the driver's operation of the steered wheels is discrete during straight running, the driver's interest is whether or not the host vehicle tends to deviate from the traveling lane. Therefore, the presentation information determination unit 15, based on the position of the host vehicle in the travel lane detected by the host vehicle position detection unit 11, travels when presenting the driver with information for assisting in straight traveling. The distance from the own vehicle position after a lapse of a predetermined time with respect to the right or left lane boundary of the own vehicle, which is the departure direction from the lane, and the distance from the current rear portion of the own vehicle are determined as presentation information.

  In addition, as described above, the driver's interest during parallel running is an angle relative to the position of another vehicle adjacent to the host vehicle. In view of this, the presentation information determination unit 15 presents the left and right portions of the host vehicle shown in FIG. 2 as the relative distance detection unit 10 when presenting the driver with information for supporting parallel running with another vehicle. The distances to other vehicles detected by the four object detection ranges SN1, SN2, SN3, and SN4 provided in are determined as presentation information.

  Furthermore, as described above, the driver's interest when traveling on a narrow road is an obstacle, a wall, or the like located on the left and right of the traveling vehicle. In view of this, the presentation information determination unit 15 is provided as a relative distance detection unit 10 on the left and right sides of the host vehicle shown in FIG. 2 when presenting information for assisting the driver on narrow roads. The distances to the objects detected by the four object detection ranges SN1, SN2, SN3, and SN4 are determined as the presentation information.

  Furthermore, the driver's interest when traveling on a curved road is the relative position and approach angle of the vehicle in the horizontal direction with respect to the traveling lane. Therefore, the presentation information determination unit 15 presents the position and orientation of the host vehicle in the travel lane detected by the host vehicle position detection unit 11 when presenting information for assisting driving on a curved road to the driver. Determine as information.

  The presentation information determined by the presentation information determination unit 15 is supplied to the visual information presentation unit 16.

  The visual information presentation unit 16 presents the presentation information determined by the presentation information determination unit 15 to the driver as visual presentation information. The visual information presentation unit 16 has a length that allows the driver to recognize the horizontal width or vertical width of the host vehicle, and the display area is formed in the horizontal direction.

  Specifically, the visual information presentation unit 16 is as shown in FIG. According to FIG. 4, one or more light emitting diodes (hereinafter referred to as LED arrays 16) 16a in which the display area is arranged in the horizontal direction with the same or sufficient length as the front window 100 of the host vehicle. 16b, a liquid crystal display whose display area is connected in the horizontal direction with the same or sufficient length as the front window, or a head-up display whose display area is connected in the horizontal direction with the same or sufficient length as the front window Composed of etc.

  In the following, the visual information presentation unit 16 is configured as two rows of LED arrays (display areas) 16a and 16b provided in the lower part of the front window, as will be described in detail later. According to the presentation information determined by 15, the light emission form of the LED arrays 16a and 16b is changed, and the visual presentation information is presented to the driver. In the following example, a case will be described in which LED arrays 16a and 16b formed at the lower part of the front window in a form sandwiched between the front pillars 101 and 101 are used.

[Operation of vehicle information display device]
The vehicular information display device including such units displays visual presentation information to the driver in each driving scene according to a series of procedures as shown in FIG.

  First, in the vehicle information display device, the driving scene determination unit 14 determines whether or not the driving scene in which the host vehicle travels is a parking scene in step S1, as shown in FIG. Specifically, the determination as to whether or not the driving scene is determined by the driving scene determination unit 14 is based on the detection result of the parking frame by the camera and the image analysis circuit included in the host vehicle position detection unit 11 and the traveling as described above. This can be done based on the determination result that the own vehicle position is in the parking lot by the navigation device of the environment detection unit 12 and information on whether or not the transmission of the own vehicle is moving backward. That is, the driving scene determination unit 14 determines that the driving scene in the host vehicle is a parking scene when there is a parking frame or a parking lot around the host vehicle and the transmission is in the reverse state. When the driving scene determination unit 14 determines that the driving scene is not a parking scene, the vehicle information display device shifts the process to step S7, while the driving scene is determined to be a parking scene. If YES, the process proceeds to step S2.

  When the process proceeds to step S2, the driving scene determination unit 14 determines whether the parking of the host vehicle is garage parking. Specifically, as described above, the driving scene determination unit 14 is a garage parking scene when the parking frame detected by the host vehicle position detection unit 11 is orthogonal to the host vehicle. If it is parallel to the host vehicle, it is determined that it is a parallel parking scene. When the driving scene determining unit 14 determines that the driving scene is a garage parking scene, the vehicle information display device shifts the process to step S3 while the driving scene is a parallel parking scene. If it is determined, the display processing for parallel parking by the presentation information determination unit 15 and the visual information presentation unit 16 is performed in step S6.

  That is, when the vehicle information display device shifts the process to step S6, the presentation information determination unit 15 first determines the content of the presentation information to be presented to the driver. As described above, the driver's interest in the case of parallel parking is that other vehicles, obstacles, and walls adjacent to the front and rear of the parking frame to be parked, and other vehicles, obstacles, and walls that exist on the sides in the vehicle retreat direction. If these objects do not exist, the position and angle of the vehicle in the front-rear direction with respect to the parking frame is of interest to the driver. Therefore, the presentation information determination unit 15 provides the distances to the objects detected by the two object detection ranges SN5 and SN6 provided at the front and rear of the host vehicle shown in FIG. Determine as. Moreover, the presentation information determination part 15 determines the distance to the parking frame detected by the own vehicle position detection part 11 as presentation information, when an object is not detected.

  The visual information presentation unit 16 presents visual presentation information to the driver based on the presentation information determined by the presentation information determination unit 15. In this case, the visual information presentation unit 16 changes the light emission form of the two rows of LED arrays 16a and 16b according to the presentation information determined by the presentation information determination unit 15, as shown in FIG. Present visual presentation information to the driver.

  Specifically, the visual information presentation unit 16 uses the upper LED array 16a of the two rows of LED arrays 16a and 16b, and among the presentation information determined by the presentation information determination unit 15, information related to the front of the host vehicle. And information about the rear of the host vehicle is presented using the lower LED array 16b. At this time, the visual information presenting unit 16 presents the actual size of the distance actually measured by the relative distance detecting unit 10 or the own vehicle position detecting unit 11 as information about the front of the own vehicle to be presented using the upper LED array 16a. To do. For example, with the right end of the upper LED array 16a as the base point, the visual information presentation unit 16 turns off the actual size portion of the measured distance (first display form) and lights the other parts (second display form). Thus, the upper LED array 16a is controlled. On the other hand, the visual information presenting unit 16 presents the actual size of the distance actually measured by the relative distance detecting unit 10 or the own vehicle position detecting unit 11 as information related to the rear of the own vehicle presented using the lower LED array 16b. To do. For example, the visual information presentation unit 16 controls the lower LED array 16b so that the actual size portion of the measured distance is not lit and the other portions are lit with the left end of the lower LED array 16b as a base point. .

Thus, the visual information presentation unit 16, as shown in FIG. 4 (b), the distance between the vehicle and an object ahead of (other vehicle) is F _d, between the vehicle and the rear of the object (another vehicle) When the distance is B _d , as shown in FIG. 4A, only a portion corresponding to the distance F _d from the right end of the upper LED array 16a is not lit, and the distance B from the left end of the lower LED array 16b is set. _The LED arrays 16a and 16b are controlled so that only a substantial part of _d is not lit.

  Thus, the vehicle information display apparatus can present visual presentation information when the driving scene is a parallel parking scene.

  In addition, when the driving scene determination unit 14 determines that the driving scene is a garage parking lot in step S2 in FIG. 3, the vehicle information display device uses the driving scene determination unit 14 in step S3. Then, it is determined whether or not the garage parking scene of the own vehicle is the left / right position adjustment. Specifically, as described above, the driving scene determination unit 14 pays attention to the fact that the driver frequently adjusts the steering amount by the steered wheels when adjusting the left and right positions of the host vehicle with respect to the parking frame. If the detected steering wheel steering frequency is high, it is determined that the driver is adjusting the left-right position, and if the detected steering wheel adjustment frequency is low, the driver Is determined to be a driving scene in which the front-rear position of the vehicle relative to the parking frame is adjusted. When the driving scene determining unit 14 determines that the driving scene is the left / right position adjustment of the parking scene in the garage, the vehicle information display device shifts the process to step S4 while the driving scene is the garage. If it is determined to adjust the front / rear position of the parking scene, the process proceeds to step S5.

  When the vehicle information display device shifts the process to step S4, the presentation information determination unit 15 and the visual information presentation unit 16 present information for supporting the left-right position adjustment of the garage parking scene. First, in the vehicle information display device, the presentation information determination unit 15 determines the content of information to be presented to the driver. As mentioned above, the driver's interest when adjusting the left / right position of garage parking is other vehicles, obstacles, walls, etc. adjacent to the left and right of the parking frame to be parked, when these objects do not exist Is the position of the vehicle in the left-right direction with respect to the parking frame. Therefore, the presentation information determination unit 15 determines the distances detected by the four object detection ranges SN1, SN2, SN3, and SN4 provided on the left and right sides of the host vehicle shown in FIG. Of these, the shortest distance is determined as the presentation information. Moreover, the presentation information determination part 15 determines the minimum value of the distance to the parking frame detected by the own vehicle position detection part 11 as presentation information, when an object is not detected.

  The visual information presentation unit 16 presents visual presentation information to the driver based on the presentation information determined by the presentation information determination unit 15. In this case, the visual information presentation unit 16 changes the light emission form of the two rows of LED arrays 16a and 16b in accordance with the presentation information determined by the presentation information determination unit 15, as shown in FIG. Present visual presentation information to the driver. Specifically, the visual information presentation unit 16 uses the upper LED array 16a of the two rows of LED arrays 16a and 16b, and relates to the right side of the host vehicle among the presentation information determined by the presentation information determination unit 15. While presenting information, the lower LED array 16b is used to present information related to the left side of the host vehicle.

  At this time, the visual information presentation unit 16 uses the actual distance actually measured by the relative distance detection unit 10 or the own vehicle position detection unit 11 as information on the right side of the own vehicle to be presented using the upper LED array 16a. Present. For example, the visual information presentation unit 16 controls the upper LED array 16a so that the actual size portion of the measured distance is not lighted and the other portions are lighted with the right end of the upper LED array 16a as a base point.

On the other hand, the visual information presentation unit 16 provides the actual distance actually measured by the relative distance detection unit 10 or the own vehicle position detection unit 11 as information on the left side of the own vehicle to be presented using the lower LED array 16b. Present. For example, the visual information presentation unit 16 controls the lower LED array 16b so that the actual size portion of the measured distance is not lit and the other portions are lit with the left end of the lower LED array 16b as a base point. . Thus, the visual information presentation unit 16, as shown in FIG. 5 (b), the distance between the vehicle and the right object is R _d, the distance between the vehicle and the left object is at L _d in this case, as shown in FIG. 5 (a), while only non-lighting substantial portion of the distance _{R d} from the right edge of the upper LED array 16a, only a substantial portion of the distance _{L d} from the left end of the lower LED array 16b non The LED arrays 16a and 16b are controlled so as to be lit.

  Thus, the vehicle information display apparatus can present visual presentation information when the driving scene is a left-right position adjustment scene of a garage parking scene.

  Moreover, if the information display apparatus for vehicles transfers a process to step S5, the presentation information determination part 15 and the visual information presentation part 16 will show the information for assisting the front-back position adjustment of a garage parking scene. First, in the vehicle information display device, the presentation information determination unit 15 determines the content of information to be presented to the driver. Here, as described above, the driver's interest when adjusting the front-rear position of garage parking is other vehicles, obstacles, walls, etc. adjacent to the rear part of the parking frame to be parked, and these objects exist. If not, it is the position of the host vehicle in the front-rear direction with respect to the parking frame. Therefore, the presentation information determination unit 15 determines the distance detected by the one object detection range SN5 provided in the rear part shown in FIG. 2 as the relative distance detection unit 10 as the presentation information. Moreover, the presentation information determination part 15 determines the minimum value of the distance to the parking frame detected by the own vehicle position detection part 11 as presentation information, when an object is not detected.

  The visual information presentation unit 16 presents visual presentation information to the driver based on the presentation information determined by the presentation information determination unit 15. In this case, the visual information presentation unit 16 changes the light emission form of the two rows of LED arrays 16a and 16b according to the presentation information determined by the presentation information determination unit 15, as shown in FIG. Present visual presentation information to the driver. Specifically, the visual information presentation unit 16 presents information related to the rear of the host vehicle determined by the presentation information determination unit 15 using only the upper LED array 16a of the two rows of LED arrays 16a and 16b.

At this time, the visual information presenting unit 16 presents the actual size of the distance actually measured by the relative distance detecting unit 10 or the own vehicle position detecting unit 11 as information relating to the rear of the own vehicle presented using the upper LED array 16a. To do. For example, the visual information presentation unit 16 controls the upper LED array 16a so that the actual size portion of the measured distance is not lit and the other portions are lit with the left end of the upper LED array 16a as a base point. Thus, the visual information presentation unit 16, as shown in FIG. 6 (b), when the distance between the vehicle and the rear of the object is a B _d, as shown in FIG. 6 (a), the upper LED array from the left edge of 16a only substantial portion of the distance _{B d} to the non-lighting, it will control the upper LED array 16a.

  Thus, the vehicle information display device can present visual presentation information when the driving scene is a front-rear position adjustment scene of a garage parking scene.

  If the driving scene determination unit 14 determines that the driving scene is not a parking scene in step S1 in FIG. 3, the driving scene determination unit 14 determines that the driving scene in which the host vehicle travels is a straight line in step S7. Decide whether it is a running scene or not. Specifically, as described above, the driving scene determination unit 14 pays attention to the fact that the driver's operation of the steering wheel during the straight running is discrete and the frequency of the operation is low, and the driver's operation at a predetermined time is The steering wheel operation is measured and frequency analysis is performed. As a result of the analysis, when the frequency of the steering wheel operation is less than a predetermined value, it is determined that the driver is traveling on a straight road, and steering is performed. If the wheel operation frequency is equal to or higher than a predetermined value, it is determined that the driver is traveling on a road other than a straight road. When the driving scene determination unit 14 determines that the driving scene is not a straight running scene, the vehicle information display device shifts the process to step S9, while the driving scene is a straight running scene. If determined, the process proceeds to step S8.

  When the process proceeds to step S <b> 8, the vehicle information display device performs a straight-line display process by the presentation information determination unit 15 and the visual information presentation unit 16. First, the presentation information determination unit 15 determines the content of the presentation information to be presented to the driver during straight running. As described above, since the driver's operation of the steered wheel during the straight running is discrete, the driver's interest is whether or not the host vehicle tends to deviate from the traveling lane. Therefore, the vehicle information display device detects the position of the host vehicle in the travel lane by the host vehicle position detection unit 11. This detection process can be performed on the basis of the detection result of the traveling lane by the camera and the image analysis circuit of the host vehicle position detection unit 11 as in step S1. Based on the position of the host vehicle in the travel lane detected by the host vehicle position detection unit 11, the presentation information determination unit 15 elapses a predetermined time with respect to the right or left lane boundary of the host vehicle that is the direction of departure from the travel lane. The distance to the rear host vehicle position and the distance from the current rear part of the host vehicle are determined as the presentation information.

In order to explain this specifically, as shown in FIG. 7 (b), the distances between the front and rear portions of the host vehicle and the left and right lane boundaries are defined as d _fr , d _fl , d _br , and d _bl , respectively. And Here, when the distance (d _fr −d _br ) or the distance (d _fl −d _bl ) is smaller than 0, the host vehicle is moving in the right direction or the left direction with respect to the traveling lane. For this reason, the vehicle will deviate from the driving lane after a predetermined time has elapsed. In order to visually present the driver to that effect, the presentation information determination unit 15 is a distance d ^* _fr (or t) from the vehicle position after t seconds with respect to the right or left lane boundary of the vehicle that is the departure direction. d ^* _fl ) and the current distance _dbr (or _dbl ) with the rear of the host vehicle are determined as information to be presented to the driver.

  The visual information presentation unit 16 presents visual presentation information to the driver based on the presentation information determined by the presentation information determination unit 15. In this case, the visual information presentation unit 16 changes the light emission form of the two rows of LED arrays 16a and 16b in accordance with the presentation information determined by the presentation information determination unit 15, as shown in FIG. Present visual presentation information to the driver.

Specifically, the visual information presentation unit 16 uses the upper LED array 16a out of the two rows of LED arrays 16a and 16b, and the host vehicle is in the departure direction among the presentation information determined by the presentation information determination unit 15. Information indicating the distance d ^* _fr (or d ^* _fl ) from the vehicle position after t seconds with respect to the right or left lane boundary of the vehicle, and using the lower LED array 16b, the vehicle in the departure direction Information indicating the distance d _br (or d _bl ) between the current vehicle rear and the right or left lane boundary of the vehicle is presented. At this time, the visual information presentation unit 16 presents the actual size of the actually measured distance as information indicating the distance d ^* _fr (or d ^* _fl ) to be presented using the upper LED array 16a. For example, the visual information presentation unit 16 sets the upper LED array 16a so that the actual size portion of the measured distance is not lit and the other portions are lit with the right end (or left end) of the upper LED array 16a as a base point. Control.

On the other hand, the visual information presenting unit 16 presents the actual size of the actually measured distance as information indicating the distance d _br (or d _bl ) to be presented using the lower LED array 16b. For example, the visual information presentation unit 16 uses the right end (or left end) of the lower LED array 16b as a base point so that the actual size equivalent part of the measured distance is not lit and the other corresponding part is lit. The LED array 16b is controlled. Therefore, as shown in FIG. 7A, the visual information presentation unit 16 is not lit only for a corresponding portion at a distance d ^* _fr (or d ^* _fl ) from the right end (or left end) of the upper LED array 16a. The LED array is controlled so that only a substantial portion of the distance d _br (or d _bl ) from the right end (or left end) of the lower LED array 16b is not lit.

  Thus, the vehicle information display apparatus can present visual presentation information when the driving scene is a straight traveling scene.

  If the driving scene determining unit 14 determines that the driving scene is not a straight traveling scene in step S7 in FIG. 3, the vehicle information display device uses the driving scene determining unit 14 in step S9. It is determined whether or not the driving scene in which the vehicle travels is a curved road traveling scene.

  Specifically, as described above, the driving scene determination unit 14 pays attention to the fact that the driver performs the driving in the same sense as the straight driving when driving on a curved road having a gentle curvature radius. A default value (for example, 200R) of the radius of curvature that switches sensibly from traveling to curved road traveling is stored. When the traveling environment of the host vehicle detected by the traveling environment detection unit 12 is a curved road and the curvature radius is less than the default value, the driving scene in which the host vehicle is traveling is a curved road traveling scene. Determine that there is. When the driving scene determination unit 14 determines that the driving scene is not a curved road running scene, the vehicle information display device shifts the process to step S16 while the driving scene is a curved road running scene. If it is determined, the process proceeds to step S10.

  When the vehicle information display device shifts the process to step S10, the driving scene determination unit 14 determines whether the driving scene in which the host vehicle travels is a narrow road traveling scene or a parallel traveling scene. Specifically, as described above, the driving scene determination unit 14 pays attention to the fact that the driver sensibly switches to narrow road driving when the width of the traveling lane becomes a predetermined sensory narrowness, A default value (for example, 3.0 m) of the vehicle width that switches sensuously to narrow road travel is stored. Then, the vehicle width is calculated from the own vehicle position in the traveling lane detected by the own vehicle position detection unit 11, and when the vehicle width is less than the default value, the driving scene in which the own vehicle is traveling is calculated. Is determined to be a narrow road driving scene.

  On the other hand, as described above, the driving scene determination unit 14 pays attention to the driver's sensuously switching to parallel running when the distance from the vehicle traveling in the adjacent lane becomes a predetermined sensory narrowness. Then, a default value (for example, 1.5 m) of the inter-vehicle distance that switches sensuously to parallel running is stored. And when the distance with the vehicle which drive | works the adjacent lane detected by the relative distance detection part 10 is less than a default value, it determines that the driving scene which the own vehicle is driving | running | working is a parallel running scene. To do.

  When the driving scene determination unit 14 determines that the driving scene is not a narrow road running scene or a parallel running scene, the vehicle information display device shifts the process to step S14 while the driving scene is a narrow road. If it is determined that it is a traveling scene or a concurrent traveling scene, the process proceeds to step S11.

  In the vehicle information display device, when the process proceeds to step S11, the driving scene determination unit 14 determines whether or not the driving scene in which the host vehicle travels is a concurrent driving scene. Specifically, the driving scene determination part 14 should just determine whether it is a parallel running scene according to the determination performed in step S10. When the driving scene determining unit 14 determines that the driving scene is a parallel running scene, the vehicle information display device shifts the process to step S12 while the driving scene is not a parallel running scene. If determined, the process proceeds to step S13.

  When the vehicle information display device shifts the process to step S12, the presentation information determination unit 15 and the visual information presentation unit 16 present information for supporting parallel running with another vehicle. First, in the vehicle information display device, the presentation information determination unit 15 determines the content of information to be presented to the driver. As described above, the driver's interest during parallel running is an angle relative to the position of another vehicle adjacent to the host vehicle. Therefore, the presentation information determination unit 15 detects the own vehicle detected by the four object detection ranges SN1, SN2, SN3, and SN4 provided at the left and right portions of the own vehicle shown in FIG. The distance between the front and rear of the vehicle and the other vehicle is determined as the presentation information.

  The visual information presentation unit 16 presents visual presentation information to the driver based on the presentation information determined by the presentation information determination unit 15. In this case, the visual information presentation unit 16 changes the light emission form of the two rows of LED arrays 16a and 16b in accordance with the presentation information determined by the presentation information determination unit 15, as shown in FIG. Present visual presentation information to the driver.

  Specifically, the visual information presentation unit 16 uses the upper LED array 16a of the two rows of LED arrays 16a and 16b, and among the presentation information determined by the presentation information determination unit 15, the visual information presentation unit 16 Information indicating the distance to the adjacent other vehicle is presented, and information indicating the distance between the rear portion of the host vehicle and the adjacent other vehicle is presented using the lower LED array 16b. At this time, the visual information presentation unit 16 uses the distance measured by the relative distance detection unit 10 as information indicating the distance between the front part of the host vehicle to be presented using the upper LED array 16a and another adjacent vehicle. Present the exact size. For example, the visual information presentation unit 16 makes the actual distance equivalent part of the measured distance non-lighting from the right or left end of the upper LED array 16a as the base point where the adjacent other vehicle exists, and the other equivalent part. The upper LED array 16a is controlled so as to light up. On the other hand, the visual information presentation unit 16 uses the lower LED array 16b to present the actual distance of the distance actually measured by the relative distance detection unit 10 as information indicating the distance between the rear part of the host vehicle and the adjacent other vehicle. Present. For example, the visual information presentation unit 16 makes the actual distance equivalent part of the measured distance non-lighting from the right or left end of the lower LED array 16b as the base point, and the other equivalent The lower LED array 16b is controlled so as to light the part.

Thus, the visual information presentation unit 16, as shown in FIG. 8 (b), the distance between the other vehicle adjacent to the right side of the front and the subject vehicle in the vehicle is d _f, the vehicle rear and the when the distance between the other vehicle adjacent to the right side of the vehicle is d _b, as shown in FIG. 8 (a), while only non-lighting substantial portion of the distance d _f from the right edge of the upper LED array 16a , so that only non-illuminated substantial portion of the distance _{d b} from the right edge of the lower LED array 16b, thus controlling the LED array 16a, the 16b.

  Thus, the vehicle information display device can present visual presentation information when the driving scene is a parallel running scene on a curved road.

  Moreover, if the information display apparatus for vehicles transfers a process to step S13, the presentation information determination part 15 and the visual information presentation part 16 will show the information for assisting the narrow road driving | running | working of the own vehicle. First, in the vehicle information display device, the presentation information determination unit 15 determines the content of information to be presented to the driver. As described above, the driver's interest when traveling on narrow roads is obstacles, walls, and the like located on the left and right of the traveling vehicle. Therefore, the presentation information determination unit 15 can detect up to the objects detected by the four object detection ranges SN1, SN2, SN3, and SN4 provided in the left and right parts of the host vehicle shown in FIG. Is determined as the presentation information.

  The visual information presentation unit 16 presents visual presentation information to the driver based on the presentation information determined by the presentation information determination unit 15. In this case, the visual information presentation unit 16 changes the light emission form of the two rows of LED arrays 16a and 16b in accordance with the presentation information determined by the presentation information determination unit 15, as shown in FIG. Present visual presentation information to the driver.

  Specifically, the visual information presentation unit 16 relates to the front portion of the host vehicle among the presentation information determined by the presentation information determination unit 15 using the upper LED array 16a of the two rows of LED arrays 16a and 16b. While presenting information, the lower LED array 16b is used to present information related to the rear of the host vehicle. At this time, the visual information presentation unit 16 uses the upper LED array 16a to present the front part of the host vehicle as the information about the front part of the host vehicle actually measured by the relative distance detection unit 10 and the object in the right direction. Present the actual distance to the object in the left direction. For example, the visual information presenting unit 16 turns off the upper LED array 16a so that the actual size corresponding portion of the measured distance is not lit and the other corresponding portions are lit with the right and left ends of the upper LED array 16a as the base points. Control. On the other hand, the visual information presentation unit 16 uses the lower LED array 16b to present information about the rear part of the host vehicle, the rear part of the host vehicle actually measured by the relative distance detection unit 10, the object in the right direction, and the left direction. Present the actual distance to the object. For example, the visual information presentation unit 16 uses the lower LED array 16b so that the actual size corresponding portion of the measured distance is not lit and the other corresponding portions are lit with the right and left ends of the lower LED array 16b as the base points. 16b is controlled.

Therefore, as shown in FIG. 9B, the visual information presentation unit 16 has a distance between the front part of the host vehicle and the object in the right direction as RF _d , and the distance between the front part of the host vehicle and the object in the left direction is When the distance is LF _d , the distance between the rear part of the host vehicle and the right-hand object is RB _d , and the distance between the rear part of the host vehicle and the left-hand object is LB _d , FIG. as shown in), only a substantial portion of the corresponding parts and left distance LF _d distance RF _d from the right edge of the upper LED array 16a with the non-lighting, a substantial portion of the distance RB _d from the right edge of the lower LED array 16b as the only non-lighting substantial portion of the distance LB _d from the left edge will control the LED array 16a, the 16b.

  Thus, the vehicle information display device can present visual presentation information when the driving scene is a narrow road running scene of a curved road.

Further, the vehicle information display device determines the presentation information in step S14 when the driving scene determination unit 14 determines that the driving scene is not a narrow road driving scene or a parallel driving scene in step S10 in FIG. The unit 15 and the visual information presentation unit 16 present information for supporting the traveling of the vehicle on a curved road. First, in the vehicle information display device, the presentation information determination unit 15 determines the content of information to be presented to the driver. As described above, the driver's interest when traveling on a curved road is the relative position and approach angle of the vehicle in the left-right direction with respect to the traveling lane. Therefore, the vehicle information display device detects the position and orientation of the host vehicle in the travel lane by the host vehicle position detection unit 11. This detection can be performed on the basis of the detection result of the traveling lane by the camera and the image analysis circuit included in the own vehicle position detection unit 11 as in step S1. Specifically, the distances between the front and rear portions of the host vehicle and the left and right lane boundaries are d _fr , d _fl , d _br , and d _bl , respectively, as shown in FIG. Further, the position of the host vehicle after t seconds is estimated, and the distances to the right and left lane boundaries of the host vehicle at the position are defined as d ^* _fr and d ^* _fl . Furthermore, let the width of the host vehicle be w. The presentation information determination unit 15 determines the relationship between the distance and the host vehicle as information to be presented to the driver.

  The visual information presentation unit 16 presents visual presentation information to the driver based on the presentation information determined by the presentation information determination unit 15. In this case, the visual information presentation unit 16 changes the light emission form of the two rows of LED arrays 16a and 16b in accordance with the presentation information determined by the presentation information determination unit 15, as shown in FIG. Present visual presentation information to the driver. Here, the width of the LED arrays 16a and 16b is assumed to be l.

The visual information presentation unit 16 uses the upper LED array 16a of the two rows of LED arrays 16a and 16b, and among the presentation information determined by the presentation information determination unit 15, the visual information presentation unit 16 at the host vehicle position after t seconds. Information indicating the relative relationship between the right and left lane boundaries and the host vehicle is presented. For example, the visual information presentation unit 16 does not light a length corresponding to d ^* _fl × l / (d ^* _fl + w + d ^* _fr ) with the left end of the upper LED array 16a as a base point, and w × l from the end point. / (D ^* _fl + w + d ^* _fr ) is lit, and further, the length corresponding to d ^* _fr × l / (d ^* _fl + w + d ^* _fr ) is not lit from the end point. The upper LED array 16a is controlled. On the other hand, the visual information presentation unit 16 uses the lower LED array 16b of the two rows of LED arrays 16a and 16b, and uses the lower LED array 16b. Information indicating the relative relationship between the right and left lane boundaries of the vehicle and the host vehicle is presented. For example, the visual information presentation unit 16 _turns off the length corresponding to d _bl × l / (d _bl + w + d _br ) with the left end of the lower LED array 16b as the base point, and w × l / (( light the length portion corresponding to the _{d bl + w + d br)} , _{further, d br × l / (d} bl + w + d br) the lower LED array 16b to a length portion corresponding to the non-lighting from the end point To control.

  Thus, the vehicle information display device can present visual presentation information when the driving scene is a curved road scene. Then, the vehicle information display device shifts the processing to step S15 in FIG. 3, and the visual information presented to the driver via the visual information presentation unit 16 by the information usage estimation unit 13 is displayed as the driver. It is estimated whether or not is used.

  As described above, when the driver refers to the visual information presentation unit 16 while traveling on a curved road, the driver's line of sight stays on the screen of the visual information presentation unit 16. Therefore, the information utilization degree estimation unit 13 detects the frequency of the gaze staying on the screen of the visual information presentation unit 16 by detecting the driver's gaze direction using the gaze direction detection device, and the higher the frequency, the higher the frequency. It is presumed that the driver is using the information. This frequency is statistically collected for each radius of curvature of the curved path. Normally, when the radius of curvature is increased, the curved path can be passed to the driver by traveling equivalent to a straight road. In such a case, since the frequency of the driver's line of sight staying on the screen of the visual information presentation unit 16 is low, it is better to present the visual information in straight running above the radius of curvature indicating a predetermined frequency or less. desirable. Therefore, when the radius of curvature indicating a predetermined frequency or less is r, the vehicle information display device uses a default value of the radius of curvature used by the driving scene determination unit 14 in step S9 in FIG. 3 described above (for example, 200R) is rewritten to r and used for the subsequent processing.

  As described above, the vehicle information display device uses the visual information presented to the driver via the visual information presenting unit 16 when the driving scene is a road running scene. The visual information can be appropriately changed according to the estimation result.

  In addition, when the driving scene determining unit 14 determines that the driving scene is not a curved road driving scene in step S9 in FIG. 3, the vehicle information display device includes a driving scene determining unit 14 in step S16. It is determined whether or not the driving scene in which the vehicle travels is a narrow road traveling scene or a parallel traveling scene. Specifically, the driving scene determination unit 14 determines whether it is a narrow road traveling scene or a parallel traveling scene in the same manner as in step S10 described above. When the driving scene determination unit 14 determines that the driving scene is a narrow road driving scene or a parallel driving scene, the vehicle information display device shifts the process to step S17 while the driving scene is narrow. If it is determined that it is not a road traveling scene or a parallel traveling scene, the process proceeds to step S22.

When the vehicle information display device shifts the process to step S22, the vehicle information display device performs a display process for straight traveling by the presentation information determination unit 15 and the visual information presentation unit 16. First, the presentation information determination unit 15 determines the content of the presentation information to be presented to the driver during straight running. Specifically, the presentation information determination unit 15 determines the distance d ^* _fr (or d) from the host vehicle position after t seconds with respect to the right or left lane boundary of the host vehicle that is the departure direction, as in step S8 described above. ^* _Fl ) and the current distance _dbr (or _dbl ) with the rear of the host vehicle are determined as information to be presented to the driver.

Based on the presentation information determined by the presentation information determination unit 15, the visual information presentation unit 16, as previously shown in FIG. 7A, the upper LED array of the two rows of LED arrays 16 a and 16 b. The distance d ^* _fr (or d ^*) between the present vehicle position after t seconds with respect to the right or left lane boundary of the own vehicle, which is the departure direction, of the presentation information determined by the presentation information determination unit 15 using 16a ^. _fl ) and presenting the distance d _br (or d _bl ) with the current rear of the vehicle relative to the right or left lane boundary of the vehicle, which is the departure direction, using the lower LED array 16b. Presents information to indicate.

  Thus, the vehicle information display apparatus can present visual presentation information when the driving scene is a straight traveling scene.

  Further, in the vehicle information display device, in step S16 in FIG. 3, when the driving scene determination unit 14 determines that the driving scene is a narrow road driving scene or a parallel driving scene, the process proceeds to step S17. Transition. And the driving scene determination part 14 determines whether the driving scene which the own vehicle drive | works is a parallel running scene.

  Specifically, the driving scene determination unit 14 may determine whether or not it is a parallel running scene according to the determination made in step S16. When the driving scene determination unit 14 determines that the driving scene is a parallel running scene, the vehicle information display device shifts the process to step S18 while the driving scene is not a parallel running scene. If determined, the process proceeds to step S20.

  When the vehicle information display device shifts the process to step S18, the presentation information determination unit 15 and the visual information presentation unit 16 present information for supporting parallel running with another vehicle. First, in the vehicle information display device, the presentation information determination unit 15 determines the content of information to be presented to the driver. Specifically, the presentation information determination unit 15 has four object detection ranges SN1, provided in the left and right portions of the host vehicle shown in FIG. The distance between the front and rear parts of the host vehicle detected by SN2, SN3, and SN4 and the other vehicle is determined as the presentation information.

  Based on the presentation information determined by the presentation information determination unit 15, the visual information presentation unit 16, as shown in FIG. 8 (a), the upper LED array of the two rows of LED arrays 16 a and 16 b. Among the presentation information determined by the presentation information determination unit 15 using 16a, information indicating the distance between the front of the host vehicle and another adjacent vehicle is presented, and the lower LED array 16b is used to Information indicating the distance between the rear part of the vehicle and another adjacent vehicle is presented.

  Thus, the vehicle information display apparatus can present visual presentation information when the driving scene is a parallel running scene that is not a curved road. And the information display apparatus for vehicles transfers a process to step S19 in FIG. 3, and the visual information currently shown to the driver | operator by the information utilization degree estimation part 13 via the visual information presentation part 16 is shown for a driver | operator. It is estimated whether or not is used.

  Specifically, the information usage estimation unit 13 detects the frequency of the gaze staying on the screen of the visual information presentation unit 16 by detecting the driver's gaze direction with the gaze direction detection device, and the frequency It is estimated that the higher the is, the more the driver uses the information. This frequency is statistically collected for each inter-vehicle distance with other vehicles running side by side. Normally, when the inter-vehicle distance with another vehicle running side by side increases, the scene is equivalent to traveling on a straight road or a curved road for the driver. In such a case, since the frequency of the driver's line of sight staying on the screen of the visual information presentation unit 16 is low, the visual information on the straight traveling or the curved traveling is obtained at an inter-vehicle distance or more indicating a predetermined frequency or less. It is better to present it. Therefore, when the inter-vehicle distance indicating a predetermined frequency or less is L, the vehicle information display device uses the default inter-vehicle distance used by the driving scene determination unit 14 in step S16 and step S17 in FIG. 3 described above. The value (for example, 1.5 m) is rewritten to L and used for subsequent processing.

  As described above, the vehicle information display device uses the visual information presented to the driver via the visual information presentation unit 16 when the driving scene is a parallel running scene that is not a curved road. The visual information can be appropriately changed according to the estimation result.

  In addition, when the driving scene determination unit 14 determines that the driving scene is not a concurrent driving scene in step S17 in FIG. 3, the vehicle information display device shifts the process to step S20 and determines the presentation information. Information for supporting narrow-lane traveling of the host vehicle is presented by the unit 15 and the visual information presentation unit 16. First, in the vehicle information display device, the presentation information determination unit 15 determines the content of information to be presented to the driver. Specifically, the presentation information determination unit 15 has four object detection ranges SN1, provided in the left part and the right part of the host vehicle shown in FIG. The distance to the object detected by SN2, SN3, SN4 is determined as presentation information.

  Based on the presentation information determined by the presentation information determination unit 15, the visual information presentation unit 16, as shown in FIG. 9 (a), the upper LED array of the two rows of LED arrays 16 a and 16 b. Among the presentation information determined by the presentation information determination unit 15 using 16a, information about the front part of the host vehicle is presented, and information about the rear part of the host vehicle is presented using the lower LED array 16b.

  Thus, the vehicle information display device can present visual presentation information when the driving scene is a narrow road running scene that is not a curved road. Then, the vehicle information display device shifts the process to step S21 in FIG. 3, and the visual information presented to the driver via the visual information presentation unit 16 by the information usage estimation unit 13 is displayed as the driver. It is estimated whether or not is used.

  Specifically, the information usage estimation unit 13 detects the frequency of the gaze staying on the screen of the visual information presentation unit 16 by detecting the driver's gaze direction with the gaze direction detection device, and the frequency It is estimated that the higher the is, the more the driver uses the information. This frequency is statistically collected for each width of the narrow road that travels. In general, when the road width increases, the scene is equivalent to traveling on a straight road or a curved road for the driver. In such a case, the frequency of the driver's line of sight staying on the screen of the visual information presenting unit 16 is low, so visual information on straight traveling or curved traveling is presented above a predetermined width or less. It is better to do it. Therefore, if the vehicle information display device has a road width ξ indicating a predetermined frequency or less, the road width default value used by the driving scene determination unit 14 in step S16 in FIG. 3 described above (for example, 3.0 m). ) Is rewritten to a road width ξ indicating a predetermined frequency or less, and used for the subsequent processing.

  As described above, the vehicle information display device uses the visual information presented to the driver via the visual information presentation unit 16 when the driving scene is a narrow road running scene that is not a curved road. It is possible to appropriately change the visual information according to the estimation result.

  The vehicle information display device can display visual presentation information to the driver in each driving scene according to such a series of procedures.

[Effect of the first embodiment]
As described above in detail, according to the vehicle information display device according to the first embodiment to which the present invention is applied, the object distance information existing around the host vehicle, the host vehicle position in the travel lane, and the current travel Based on the environment, it is determined that the current driving scene is one of a plurality of predetermined driving scenes. Then, the vehicle information display device detects the distance to the object existing around the host vehicle detected by the relative distance detector 10 or the host vehicle position according to the driving scene determined by the driving scene determination unit 14. One of the positions in the travel lane in which the host vehicle travels detected by the unit 11 is determined as the content of the presentation information presented to the driver, and the determined presentation information is visually presented to the driver.

  Therefore, according to this vehicle information display device, information that is useful for the driver in the traveling environment in which the host vehicle is traveling can be appropriately switched and presented to the driver. In particular, information corresponding to the situation around the host vehicle and the driving environment in a plurality of driving scenes can be presented to the driver using the single visual information presentation unit 16. Therefore, according to this vehicle information display device, it is possible to display information that is consistent with the sense of the driver in a form that matches the sense of the driver, and to reduce discomfort and confusion about the driver information. Can do.

  In this vehicle information display device, the visual information presentation unit 16 has a display area formed in the horizontal direction, and changes the display form so that the driver can recognize the distance in the horizontal direction or the vertical direction with respect to the host vehicle. Let Specifically, the visual information presentation unit 16 is equivalent or sufficient to one or more LED arrays 16a and 16b having a display area arranged in the horizontal direction and having a length equal to or sufficient as the front window of the host vehicle. It can be a liquid crystal display with a display area connected in the horizontal direction with a long length, or a head-up display with a display area connected in the horizontal direction with a length equivalent to or sufficient as the front window. Thereby, according to this vehicle information display device, it is possible to present sensory information regarding the situation around the host vehicle in a plurality of driving scenes and the distance in the driving environment as visual information that is easy for the driver to understand.

  Further, in this vehicle information display device, the driving scene determination unit 14 detects the parking frame detection result, the determination result that the own vehicle position is in the parking lot, the state of the transmission of the own vehicle, the steering wheel of the own vehicle. Driving in which the vehicle is traveling based on the operation frequency, the radius of curvature on the road, the road width in the lane of travel, or the driving scene decision rule determined in accordance with the distance between the vehicle and another vehicle running in parallel with the vehicle It is determined that the scene is one of a garage parking scene, a parallel parking scene, a straight traveling scene, a curved road traveling scene, a parallel traveling scene, or a narrow road traveling scene. Thereby, according to this vehicle information display device, object distance information characteristic of each of a garage parking scene, a parallel parking scene, a straight traveling scene, a curved traveling scene, a parallel traveling scene, or a narrow traveling scene Can be presented to the driver as visual presentation information.

  Furthermore, in this vehicle information display device, it is desirable that the visual information presentation unit 16 be a light emitting diode array (display area) of two or more columns in which the display area is provided in the horizontal direction.

  And the visual information presentation part 16 is arbitrary 1 when the object which exists in the right side of the own vehicle is detected when the driving scene determined by the driving scene determination part 14 is a garage parking scene. Starting from the right end of the light emitting diode array in the row, the length portion corresponding to the distance to the object on the right side of the host vehicle is not lit, and the portion other than the non-lit portion is lit. When an LED array is controlled and an object that is present on the left side of the host vehicle is detected when the driving scene is a garage parking scene, the left end of the LED array in the other row is used as the base point. The light emitting diode array in the other row is controlled so that the length portion corresponding to the distance to the object existing on the left side of the vehicle is not lit and the portions other than the non-lighted portion are lit. Thereby, according to this information display device for vehicles, the distance to the object which exists in the right-and-left direction of the own vehicle which is difficult to grasp at the time of parking in the garage can be presented to the driver visually and in actual size.

  Further, the visual information presenting unit 16 detects that an object existing in the right front or left front of the host vehicle is detected when the driving scene determined by the driving scene determination unit 14 is a garage parking scene. Starting from the right end or left end of any one row of light emitting diode arrays, the length portion corresponding to the distance to the object existing in the right front or left front of the host vehicle is not lit, and the portions other than the non-lit portion are When the light emitting diode array of one row is controlled so as to light up, and an object existing on the right rear side or the left rear side of the own vehicle is detected when the driving scene is a garage parking scene, another row is detected. From the right end or left end of the light emitting diode array, the length portion corresponding to the distance to the object existing at the right rear or left rear of the host vehicle is turned off, and the portions other than the non-lighted portion are turned on. Other Controlling the light emitting diode array column. Thereby, according to this vehicle information display apparatus, the inclination with respect to the object of the own vehicle which is difficult to grasp at the time of parking in the garage can be visually presented to the driver.

  Further, the visual information presenting unit 16 may select an arbitrary row when an object existing behind the host vehicle is detected when the driving scene determined by the driving scene determining unit 14 is a garage parking scene. With the right or left end of the light emitting diode array as the base point, the length portion corresponding to the distance to the object existing behind the host vehicle is not lit, and the portion other than the non-lit portion is lit. Control the light emitting diode array. Thereby, according to this vehicle information display device, the distance to the object existing behind the host vehicle that is difficult to grasp at the time of parking in the garage can be presented to the driver visually and in actual size.

  Furthermore, the visual information presentation unit 16 may select any one row when an object existing in front of the host vehicle is detected when the driving scene determined by the driving scene determination unit 14 is a parallel parking scene. With the right or left end of the light emitting diode array as a base point, the length portion corresponding to the distance to the object existing in front of the host vehicle is not lit, and the portion other than the non-lit portion is lit. When an LED array is controlled and an object existing behind the host vehicle is detected when the driving scene is a parallel parking scene, the right or left end of the LED array in the other row is used as a base point. The light emitting diode array in the other row is controlled so that the length portion corresponding to the distance to the object existing behind the vehicle is not lit and the portions other than the non-lighted portion are lit. Thereby, according to this information display device for vehicles, the distance to the object which exists in front and back of the own vehicle which is difficult to grasp at the time of parallel parking can be presented to the driver visually and in actual size.

  The visual information presentation unit 16 also detects that an object existing in the right front of the host vehicle is detected when the driving scene determined by the driving scene determination unit 14 is a narrow road driving scene, or the host vehicle travels. When the relative position of the host vehicle in the travel lane is detected, the distance to the object existing in the right front of the host vehicle or the host vehicle travels from the right end of any one row of the light emitting diode arrays. A portion corresponding to the relative distance from the right side of the traveling lane to the front right side of the host vehicle is not lit, and the light emitting diode array in the row is controlled so that portions other than the unlit portion are lit. Also, when the driving scene is a narrow road driving scene, an object existing in the left front of the host vehicle is detected, or the relative position of the host vehicle is detected in the driving lane on which the host vehicle is traveling Is equivalent to the distance from the left end of the light-emitting diode array in one row to the object existing in the left front of the host vehicle or the relative distance from the left side of the travel lane on which the host vehicle travels to the right front of the host vehicle. The light emitting diode array in one column is controlled so that the length portion to be turned off is turned off and the portions other than the non-lighted portion are turned on.

  Similarly, when the driving scene determined by the driving scene determination unit 14 is a narrow road driving scene, the visual information presenting unit 16 detects that an object existing on the right rear of the host vehicle is detected or the host vehicle travels. When the relative position of the host vehicle in the traveling lane is detected, the distance to the object existing at the right rear of the host vehicle or the host vehicle travels from the right end of the light emitting diode array in the other row as a base point. The light emitting diode array of the other row is controlled so that the portion corresponding to the relative distance from the right side of the traveling lane to the right rear portion of the host vehicle is not lit and the portions other than the non-lighted portion are lit. . Also, when the driving scene is a narrow road driving scene, an object that is present at the left rear of the host vehicle is detected, or the relative position of the host vehicle is detected in the driving lane on which the host vehicle is traveling The distance from the left end of the light emitting diode array in the other row to the base point is the distance to the object existing behind the left side of the host vehicle or the relative distance from the left side of the traveling lane on which the host vehicle travels to the right front of the host vehicle. The light emitting diode array in the other column is controlled so that the corresponding length portion is not lit and the portions other than the non-lit portion are lit.

  Thereby, according to this vehicle information display device, the distance to the object with respect to the four corners of the host vehicle, which is difficult to grasp when traveling on a narrow road, can be presented to the driver visually and in actual size.

  Further, the visual information presenting unit 16 may select an arbitrary row when an object existing in the right front of the host vehicle is detected when the driving scene determined by the driving scene determining unit 14 is a parallel running scene. The light emission of one row is set so that the length portion corresponding to the distance to the object existing in the right front of the host vehicle is not lit and the portions other than the non-lighting portion are lit with the right end of the light emitting diode array as a base point. If the object is present on the right rear side of the host vehicle when the diode array is controlled and the driving scene is a parallel running scene, the right end of the light emitting diode array in the other row is used as a base point. The light emitting diode array in the other row is controlled so that the portion corresponding to the distance to the object existing at the right rear is not lit and the portions other than the non-lighted portion are lit. Similarly, when the driving scene determined by the driving scene determination unit 14 is a side-by-side driving scene, the visual information presenting unit 16 detects one object in the left front of the host vehicle. The light emitting diodes in one row are set so that the length corresponding to the distance to the object existing in the left front of the host vehicle is not lit with the left end of the light emitting diode array as a base point, and the portions other than the non-lighted portion are lit. If the object is present at the left rear of the host vehicle when the array is controlled and the driving scene is a side-by-side driving scene, the left side of the host vehicle is detected from the left end of the light emitting diode array in the other row. The light emitting diode array in the other row is controlled so that the length portion corresponding to the distance to the object existing behind is not lit and the portions other than the non-lighted portion are lit. Thereby, according to this vehicle information display device, the distance to the other vehicle with respect to the own vehicle, which is difficult to grasp at the time of parallel running with the other vehicle, can be presented to the driver visually and in actual size.

  Furthermore, when the driving scene determined by the driving scene determination unit 14 is a curved road driving scene, the presentation information determination unit 15 is assumed to be a position where the host vehicle is expected to arrive after a predetermined time has elapsed (assumed arrival position). ) To calculate the ratio of the distance in the left-right direction to the lane boundary of the traveling lane on which the host vehicle travels and the width of the host vehicle relative to the front part of the host vehicle and the current rear part of the host vehicle Then, the visual information presentation unit 16 is based on the ratio of the lateral distance to the lane boundary with respect to the front part of the host vehicle at the assumed arrival position of the host vehicle calculated by the presentation information determination unit 15 and the width of the host vehicle. The light emitting diode array is controlled so that the portion corresponding to the position of the host vehicle in the light emitting diode array in any one row is turned on and the portion corresponding to the distance in the horizontal direction is not turned on. That. Further, the visual information presentation unit 16 determines whether the light-emitting diode array in the other row is based on the ratio of the lateral distance to the lane boundary with respect to the rear portion of the own vehicle at the assumed arrival position of the own vehicle and the width of the own vehicle. The one row of light emitting diode arrays is controlled so that the portion corresponding to the vehicle position is turned on and the portion corresponding to the distance in the left-right direction is not lit. Thereby, according to this vehicle information display device, the approach angle of the own vehicle with respect to the curved road that is difficult to grasp when traveling on the curved road and the position of the own vehicle in the lane are visually presented to the driver in actual size. be able to.

  Further, when the driving scene determined by the driving scene determination unit 14 is a straight traveling scene, the visual information presenting unit 16 has the right side and the left side of the front part of the host vehicle at the assumed arrival position of the host vehicle. From the distance to the right and left lane boundaries of the travel lane on which the host vehicle travels and from the right and left sides of the front of the host vehicle at the current host vehicle position, the right and left sides of the travel lane on which the host vehicle travels As a result of comparing the distance to the lane boundary of the direction by the presentation information determination unit 15, if there is a direction in which the distance decreases in the right front or left front of the host vehicle, any one row of light emitting diode arrays With the right end or left end of the vehicle as the base point, the length corresponding to the distance from the right front or left front of the host vehicle to the right or left lane boundary at the assumed arrival position of the host vehicle is turned off, The light-emitting diode array in one row is controlled so that the portions other than the non-lighting portion are lit, and the right or left end of the light-emitting diode array in the other row is used as a base point to the right from the front right or front left of the current vehicle Alternatively, the length portion corresponding to the distance to the left lane boundary is not lit, and the light emitting diode arrays in the other columns are controlled so that the portions other than the non-lighted portion are lit. Thereby, according to this vehicle information display device, it is possible to visually present to the driver the actual vehicle position and the tendency of departure from the lane with respect to the lane boundary that is difficult to grasp during straight running.

  The vehicle information display device further includes an information usage estimation unit 13 that estimates whether the driver is using the visual presentation information presented to the driver by the visual information presentation unit 16. . When the information usage estimation unit 13 estimates that the driver does not use visual presentation information, the driving scene determination unit 14 refers to a driving scene determination rule that is referred to when determining the driving scene. To change. Thus, according to this vehicle information display device, it is possible to present the driver with visual presentation information that matches the driver's feeling even in situations where the driving scenes overlap. Information presentation with a sense of incongruity can be appropriately performed.

  Furthermore, in this vehicle information display device, the information utilization degree estimation unit 13 has a gaze direction detection device that detects the gaze direction of the driver, and is based on the gaze direction of the driver detected by the gaze direction detection device. Thus, it is estimated whether or not the driver is using the visual presentation information. Thereby, according to this vehicle information display device, it is possible to estimate whether or not the driver is actually referring to the information presented and update the timing of information presentation based on the estimation. It is possible to present to the driver visual presentation information that is more helpful in accordance with the actual driving behavior of the driver.

[Second Embodiment]
Next, a vehicle information display apparatus according to a second embodiment to which the present invention is applied will be described.

  The vehicle information display device according to the second embodiment improves the vehicle information display device according to the first embodiment, detects the driving operation of the driver, and notifies the driver when the driving operation is performed. The state of the presented presentation information is held as a driver operation history. The vehicle information display device estimates whether the driver uses the visual information presented to the driver based on the driver operation history. Therefore, in the second embodiment, the same parts and the same processes as those explained in the first embodiment are denoted by the same reference numerals and the same step numbers, respectively, and detailed description thereof will be omitted. .

[Configuration of vehicle information display device]
As shown in FIG. 11, the vehicle information display device according to the second embodiment to which the present invention is applied includes the above-described relative distance detection unit 10, host vehicle position detection unit 11, travel environment detection unit 12, and presentation information determination unit. 15 and information for estimating whether the driver uses the visual presentation information presented to the driver, in addition to the visual information presentation unit 16 that presents the visual presentation information to the driver. A usage estimation unit 20 and a driving scene determination unit 21 that determines a driving scene in which the host vehicle is traveling are provided.

  Similarly to the information usage estimation unit 13, the information usage estimation unit 20 determines whether the driver uses the visual presentation information presented to the driver via the visual information presentation unit 16. presume. Here, the information utilization degree estimation unit 20 presents to the driver when the driver operation detection unit 22 that detects the driving operation of the driver and the driving operation detected by the driver operation detection unit 22 are performed. And a driver operation history holding unit 23 that holds the state of the presenting information as a driver operation history. The driver operation detection unit 22 includes, for example, a steering angle detection device that detects an angle at which the driver operated the steering wheel, an accelerator opening detection device that detects an amount by which the driver operated the accelerator pedal, and a driver A brake pressure detecting device for detecting a pressure at which the brake pedal is operated.

  Such an information usage estimation unit 20 holds the driver operation history as the driver operation history using the state of the presentation information presented to the driver when the driving operation detected by the driver operation detection unit 22 is performed. Held in the unit 23. And the information utilization degree estimation part 20 estimates whether the driver | operator is using the visual presentation information based on the said driver | operator operating history hold | maintained.

  For example, when the driver is referring to the visual information presentation unit 16 while traveling on a curved road, traveling on a narrow road, or traveling side by side, the driver operates the steering wheel, operates the accelerator pedal, and brake pedal. The operation is performed in conjunction with information presented by the visual information presentation unit 16. Therefore, the information utilization degree estimation unit 20 is a probabilistic distribution in which driving operations of these drivers are linked with information presented by the visual information presentation unit 16 during the traveling on a curved road, the narrow road traveling, or the parallel traveling. Is detected and held in the driver operation history holding unit 23, and it is estimated that the driver uses information as the variation in the held distribution is smaller. The utilization information estimated by the information utilization degree estimation unit 20 is supplied to the presentation information determination unit 15 and used as information presented to the driver.

  Similar to the driving scene determination unit 14, the driving scene determination unit 21 includes the object distance information supplied from the relative distance detection unit 10, the host vehicle position information supplied from the host vehicle position detection unit 11, and the traveling environment detection unit. Based on the travel environment information supplied from 12, the various driving scenes in which the host vehicle is traveling are determined. The driving scene information determined by the driving scene determination unit 21 is supplied to the presentation information determination unit 15 and used as information to be presented to the driver.

[Operation of vehicle information display device]
The vehicular information display device including such units displays visual presentation information to the driver in each driving scene according to a series of procedures as shown in FIG.

  First, in the vehicle information display device, when the driving scene determination unit 21 determines in step S1 in FIG. 12 that the driving scene is not a parking scene, in step S200, the driving scene in which the host vehicle travels is a straight line. Decide whether it is a running scene or not. Usually, the driver's mental driving load during straight running is low. Therefore, the driving scene determination unit 21 includes a driving load estimation device that estimates a mental driving load based on, for example, a driver's heartbeat detected by a sensor embedded in a seat belt. The typical driving load. And the driving scene determination part 21 estimates a driver | operator's mental driving load, and when the mental driving load is less than a predetermined value as a result of the estimation, the driver is driving on a straight road. If the driver's mental driving load is greater than or equal to a predetermined value, it is determined that the driver is traveling on a road other than a straight road. When the driving scene determination unit 14 determines that the driving scene is not a straight running scene, the vehicle information display device shifts the process to step S9, while the driving scene is a straight running scene. If determined, the process proceeds to step S8.

  In addition, the vehicle information display apparatus shifts the process from step S9 to step S10 in FIG. 12 to step S14, and the presentation information determination unit 15 and the visual information presentation unit 16 support the traveling of the vehicle on a curved road. In step S32, the information usage estimation unit 20 estimates whether the driver is using the visual information presented to the driver via the visual information presentation unit 16.

  As described above, when the driver refers to the visual information presentation unit 16 while traveling on a curved road, the steering wheel operation, the accelerator pedal operation, and the brake pedal operation by the driver are performed by the visual information presentation unit. This is performed in conjunction with the information presented by 16. Therefore, the information usage degree estimation unit 20 detects a stochastic distribution in which these driver operations are linked with information presented by the visual information presentation unit 16 and stores the probability distribution in the driver operation history holding unit 23. And the information utilization degree estimation part 20 estimates that the driver | operator is using information, so that the dispersion | variation in the distribution hold | maintained at the driver | operator operation log | history holding part 23 is small. This distribution is statistically collected for each radius of curvature of the curved path. Normally, when the radius of curvature is increased, the curved path can be passed to the driver by traveling equivalent to a straight road. In such a case, the variation of the distribution held in the driver operation history holding unit 23 becomes large. Therefore, it is desirable to present visual information in a straight running above a radius of curvature that indicates a predetermined variation or more. Therefore, when the curvature radius indicating a predetermined variation or more is r ′, the vehicle information display device uses a default value (for example, 200R) of the curvature radius used by the driving scene determination unit 21 in step S9 in FIG. ) Is rewritten to r ′ and used for the subsequent processing.

  As described above, the vehicle information display device uses the visual information presented to the driver via the visual information presenting unit 16 when the driving scene is a road running scene. The visual information can be appropriately changed according to the estimation result.

  Further, the vehicle information display device shifts the process from step S9 to step S16 in FIG. 12 to step S17 to step S18, and the presentation information determination unit 15 and the visual information presentation unit 16 perform parallel running with other vehicles. When the information for support is presented, whether or not the driver uses the visual information presented to the driver through the visual information presentation unit 16 by the information usage estimation unit 20 in step S33. presume. As described above, when the driver is referring to the visual information presentation unit 16 during parallel running, the steering wheel operation, the accelerator pedal operation, and the brake pedal operation by the driver are performed by the visual information presentation unit 16. Is performed in conjunction with the information presented by.

  Therefore, the information usage degree estimation unit 20 detects a stochastic distribution in which these driver operations are linked with information presented by the visual information presentation unit 16 and stores the probability distribution in the driver operation history holding unit 23. And the information utilization degree estimation part 20 estimates that the driver | operator is using information, so that the dispersion | variation in the distribution hold | maintained at the driver | operator operation log | history holding part 23 is small. This distribution is statistically collected for each inter-vehicle distance with other vehicles running side by side. Normally, when the inter-vehicle distance with another vehicle running side by side increases, the scene is equivalent to traveling on a straight road or a curved road for the driver. In such a case, the dispersion of the distribution held in the driver operation history holding unit 23 becomes large. Therefore, it is better to present visual information in straight running or curved running at an inter-vehicle distance or more indicating a predetermined variation or more. desirable. Therefore, when the inter-vehicle distance indicating a predetermined variation or more is L ′, the vehicle information display device uses a default value (for example, 1) of the inter-vehicle distance used by the driving scene determination unit 21 in step S9 in FIG. .5m) is rewritten to L ′ and used for the subsequent processing.

  Thus, the vehicle information display apparatus determines whether the driver uses the visual information presented to the driver via the visual information presentation unit 16 when the driving scene is a parallel running scene. The visual information can be appropriately changed according to the estimation result.

  In addition, the vehicle information display device shifts the process from step S9 to step S16 in FIG. 12 to step S17 to step S20, and the presentation information determination unit 15 and the visual information presentation unit 16 cause the vehicle to travel on a narrow road. Present information to assist. In step S <b> 34, the information usage estimation unit 20 estimates whether or not the driver is using the visual information presented to the driver via the visual information presentation unit 16.

  As described above, when the driver is referencing the visual information presentation unit 16 while traveling on a narrow road, the steering wheel operation, the accelerator pedal operation, and the brake pedal operation by the driver are performed by the visual information presentation unit. This is performed in conjunction with the information presented by 16. Therefore, the information usage degree estimation unit 20 detects a stochastic distribution in which these driver operations are linked with information presented by the visual information presentation unit 16 and stores the probability distribution in the driver operation history holding unit 23.

  And the information utilization degree estimation part 20 estimates that the driver | operator is using information, so that the dispersion | variation in the distribution hold | maintained at the driver | operator operation log | history holding part 23 is small. This distribution is statistically collected for each width of the narrow road that travels. In general, when the road width increases, the scene is equivalent to traveling on a straight road or a curved road for the driver. In such a case, since the variation of the distribution held in the driver operation history holding unit 23 becomes large, it is preferable to present visual information on straight running or curved running over a road width exceeding a predetermined variation. . Therefore, when the road width indicating a predetermined variation or more is ξ ′, the vehicle information display device uses a default value (for example, 3.0 m) of the road width used by the driving scene determination unit 21 in step S16 in FIG. ) Is rewritten to a road width ξ ′ indicating a predetermined variation or more, and used for subsequent processing.

  Thus, the vehicle information display device uses the visual information presented to the driver via the visual information presentation unit 16 when the driving scene is a narrow road traveling scene. The visual information can be appropriately changed according to the estimation result.

  The vehicle information display device can display visual presentation information to the driver in each driving scene according to such a series of procedures.

[Effects of Second Embodiment]
As described above in detail, in the vehicle information display apparatus according to the second embodiment to which the present invention is applied, the information usage estimation unit 20 detects the operation of the steering wheel, the accelerator pedal, and the brake pedal by the driver. A driver operation detection unit 22 that performs the operation, and the visual information presenting unit 16 displays the state of the visual presentation information that is presented to the driver when the driver's operation detection unit 22 detects the driver's operation. A driver operation history holding unit 23 that holds the driver operation history in combination with the operation of the driver, and the visual presentation information based on the driver operation history held in the driver operation history holding unit 23 It is estimated whether the driver is using.

  Therefore, according to this vehicle information display device, it is possible to present the driver with visual presentation information that more closely matches the driver's feeling even in situations where the driving scenes overlap. Information presentation without a sense of incongruity according to actual driving behavior can be performed as appropriate.

[Third Embodiment]
Next, a vehicle information display apparatus according to a third embodiment to which the present invention is applied will be described.

  The vehicle information display device according to the third embodiment is an improvement of the vehicle information display device shown as the first embodiment and the second embodiment, and increases the amount of information that can be presented by the visual information presentation unit. is there. Therefore, in the third embodiment, the same parts and the same processes as those explained in the first and second embodiments are denoted by the same reference numerals and the same step numbers, respectively, and detailed description thereof will be given. Shall be omitted.

[Configuration of vehicle information display device]
As shown in FIG. 13, the vehicle information display device according to the third embodiment to which the present invention is applied includes the above-described relative distance detection unit 10, host vehicle position detection unit 11, travel environment detection unit 12, and information utilization degree estimation. In addition to the unit 20 and the driving scene determination unit 21, a presentation information determination unit 30 that determines the content of visual presentation information to be presented to the driver, and a visual information presentation that presents visual presentation information to the driver Part 31.

  Similar to the presentation information determination unit 15, the presentation information determination unit 30 includes the object distance information supplied from the relative distance detection unit 10, the host vehicle position information supplied from the host vehicle position detection unit 11, and the information utilization degree estimation unit 20. The content of visual presentation information to be presented to the driver is determined based on the usage information supplied from the vehicle and the driving scene information supplied from the driving scene determination unit 21. The presentation information determined by the presentation information determination unit 30 is supplied to the visual information presentation unit 31.

  Similarly to the visual information presentation unit 16, the visual information presentation unit 31 presents the presentation information determined by the presentation information determination unit 30 to the driver as visual presentation information. Specifically, as will be described in detail later, the visual information presentation unit 31 is configured as a four-row LED array provided in the lower part of the front window, and the presentation information determined by the presentation information determination unit 30 In response to this, the light emission form of the LED array is changed to present visual presentation information to the driver.

[Operation of vehicle information display device]
The vehicular information display device including such units displays visual presentation information to the driver in each driving scene according to a series of procedures as shown in FIG.

  First, the vehicle information display device shifts the processing from step S1 to step S2 to step S3 in FIG. 14, and the driving scene determination unit 14 determines that the driving scene is the left-right position adjustment of the garage parking scene. In such a case, in step S41, the presentation information determination unit 30 and the visual information presentation unit 31 present information for supporting the left-right position adjustment of the garage parking scene.

  First, in the vehicle information display device, the presentation information determination unit 30 determines the content of information to be presented to the driver. As described above, the driver's interest in adjusting the left-right position of garage parking is the presence of other vehicles, obstacles, walls, etc. adjacent to the left and right of the parking frame to be parked, and the angle of the vehicle with respect to these objects. It is. When these objects do not exist, the driver's interest is the position of the vehicle in the left-right direction with respect to the parking frame and the angle with respect to the parking frame.

  Therefore, the presentation information determination unit 30 uses the distances detected by the four object detection ranges SN1, SN2, SN3, and SN4 provided as the relative distance detection unit 10 on the left and right sides of the host vehicle shown in FIG. Determined as presentation information. Moreover, the presentation information determination part 30 determines the distance to the parking frame detected by the own vehicle position detection part 11 as presentation information, when an object is not detected.

  The visual information presentation unit 31 presents visual presentation information to the driver based on the presentation information determined by the presentation information determination unit 30. In this case, as shown in FIG. 15A, the visual information presentation unit 31 changes the light emission forms of the four rows of LED arrays 16a to 16d according to the presentation information determined by the presentation information determination unit 30, Present visual presentation information to the driver.

  Specifically, the visual information presentation unit 31 uses the LED array 16a of the first row from the top of the four rows of LED arrays 16a to 16d, and among the presentation information determined by the presentation information determination unit 30. Information on the right front of the vehicle is presented, information on the right rear of the host vehicle is presented using the LED array 16b in the second row from the top, and information on the host vehicle is presented using the LED array 16c in the third row from the top. Information on the left front is presented, and information on the left rear of the host vehicle is presented using the LED array 16d in the fourth column from the top. At this time, the visual information presentation unit 31 detects the relative distance detection unit 10 or the own vehicle position as information on the right front and right rear of the own vehicle to be presented using the first and second LED arrays 16a and 16b. The actual size of the distance actually measured by the unit 11 is presented.

  For example, the visual information presenting unit 31 uses the right ends of the LED arrays 16a and 16b in the first row and the second row as a base point so that the actual size corresponding portion of the measured distance is not lit and the other corresponding portions are lit. The LED arrays 16a and 16b are controlled. On the other hand, the visual information presentation unit 31 uses the relative distance detection unit 10 or the vehicle position detection unit as information on the left front and left rear of the host vehicle to be presented using the LED arrays 16c and 16d in the third and fourth columns. 11 shows the actual size of the distance actually measured. For example, the visual information presenting unit 31 uses the left end of the LED arrays 16c and 16d in the third and fourth columns as the base point so that the actual size equivalent part of the measured distance is not lit and the other corresponding parts are lit. The LED arrays 16c and 16d are controlled.

Thus, the visual information presentation unit 31, as shown in FIG. 15 (b), the distance between the vehicle and the right front and right rear of the object is R _d, between the vehicle and the left front and left rear of the object If the distance is _{L d,} as shown in FIG. 15 (a), 1 column and the second column of the LED array 16a, the right end of the 16b only substantial portion of the distance _{R d} together with the non-lighting, 3 th column and the fourth column of the LED array 16c, as the only non-lighting substantial portion of the distance _{L d} from the left edge of the 16d, will control the LED array 16 a to 16 d.

  Thus, the vehicle information display apparatus can present visual presentation information when the driving scene is a left-right position adjustment scene of a garage parking scene.

  Further, the vehicle information display device shifts the process from step S1 to step S2 to step S3 in FIG. 14, and the driving scene determination unit 14 determines that the driving scene is the front-rear position adjustment of the garage parking scene. In such a case, in step S42, the presentation information determination unit 30 and the visual information presentation unit 31 present information for supporting the front-rear position adjustment of the garage parking scene.

  First, in the vehicle information display device, the presentation information determination unit 30 determines the content of information to be presented to the driver. As mentioned above, the driver's interest when adjusting the front-rear position of garage parking is other vehicles, obstacles, walls, etc. adjacent to the rear part of the parking frame to be parked, and these objects do not exist Is the position of the vehicle in the front-rear direction relative to the parking frame. Therefore, the presentation information determination unit 30 determines the distance detected by the one object detection range SN5 provided in the rear part shown in FIG. 2 as the relative distance detection unit 10 as the presentation information. Moreover, the presentation information determination part 30 determines the minimum value of the distance to the parking frame detected by the own vehicle position detection part 11 as presentation information, when an object is not detected.

  The visual information presentation unit 31 presents visual presentation information to the driver based on the presentation information determined by the presentation information determination unit 30. In this case, as shown in FIG. 16A, the visual information presentation unit 31 changes the light emission forms of the four rows of LED arrays 16a to 16d according to the presentation information determined by the presentation information determination unit 30, Present visual presentation information to the driver.

  Specifically, the visual information presentation unit 31 presents information related to the rear of the host vehicle determined by the presentation information determination unit 30 using all of the four rows of LED arrays 16a to 16d. At this time, the visual information presenting unit 31 is actually measured by the relative distance detecting unit 10 or the own vehicle position detecting unit 11 as information related to the rear of the own vehicle to be presented using the LED arrays 16a to 16d of all four columns. Present the actual distance.

  For example, the visual information presentation unit 31 uses the right end of the LED arrays 16a to 16d in all four columns as a base point so that the actual size corresponding portion of the measured distance is not lit and the other corresponding portions are lit. 16a to 16d are controlled. Therefore, as shown in FIG. 16 (b), the visual information presenting unit 31 displays all four columns as shown in FIG. 16 (a) when the distance between the host vehicle and the rear object is Bd. The LED arrays 16a to 16d are controlled so that only a part corresponding to the distance Bd from the right end of the LED arrays 16a to 16d is not lit.

  Thus, the vehicle information display device can present visual presentation information when the driving scene is a front-rear position adjustment scene of a garage parking scene.

  Further, the vehicle information display apparatus shifts the process from step S1 to step S2 in FIG. 14, and when the driving scene determining unit 14 determines that the driving scene is a parallel parking scene, in step S43. The display processing for parallel parking by the presentation information determination unit 30 and the visual information presentation unit 31 is performed.

  In other words, when the vehicle information display device shifts the process to step S43, the presentation information determination unit 30 first determines the content of the presentation information to be presented to the driver. As described above, the driver's interest in the case of parallel parking is that other vehicles, obstacles, and walls adjacent to the front and rear of the parking frame to be parked, and other vehicles, obstacles, and walls that exist on the sides in the vehicle retreat direction. If these objects do not exist, the position and angle of the vehicle in the front-rear direction with respect to the parking frame is of interest to the driver.

  Therefore, the presentation information determination unit 30 determines the distances to the objects detected by the six object detection ranges SN1, SN2, SN3, SN4, SN5, and SN6 shown in FIG. 2 as the relative distance detection unit 10 as the presentation information. . Moreover, the presentation information determination part 30 determines the distance to the parking frame detected by the own vehicle position detection part 11 as presentation information, when an object is not detected.

  The visual information presentation unit 31 presents visual presentation information to the driver based on the presentation information determined by the presentation information determination unit 30. In this case, as shown in FIG. 17A, the visual information presentation unit 31 changes the light emission forms of the four rows of LED arrays 16a to 16d according to the presentation information determined by the presentation information determination unit 30, Present visual presentation information to the driver.

  Specifically, the visual information presentation unit 31 uses the LED array 16a of the first row from the top of the four rows of LED arrays 16a to 16d, and among the presentation information determined by the presentation information determination unit 30. Information on the front of the vehicle is presented, and information on the rear of the host vehicle is presented using the LED array 16d in the fourth column from the top. Moreover, the visual information presentation part 31 presents the information regarding the front part and the rear part of the side surface of the reverse direction of the own vehicle using the LED arrays 16b and 16c in the second and third rows from the top. At this time, the visual information presentation unit 31 uses the distance measured by the relative distance detection unit 10 or the vehicle position detection unit 11 as information about the front of the vehicle presented using the LED array 16a in the first column. Present the exact size.

  For example, the visual information presentation unit 31 uses the right end of the LED array 16a in the first row as a base point to turn off the LED array 16a so that the portion corresponding to the actual distance of the measured distance is not lit and the other corresponding portion is lit. Control. On the other hand, the visual information presentation unit 31 uses the LED array 16d in the fourth column as information relating to the rear of the host vehicle, and the actual size of the distance actually measured by the relative distance detection unit 10 or the host vehicle position detection unit 11. Present. For example, the visual information presenting unit 31 uses the left end of the LED array 16d in the fourth column as a base point, turns off the LED corresponding to the actual distance of the measured distance, and turns on the LED array 16d so that the other corresponding parts are lit. Control. In addition, the visual information presentation unit 31 uses the relative distance detection unit 10 or the self-information as information on the front part and the rear part of the side surface in the backward direction of the host vehicle to be presented using the LED arrays 16b and 16c in the second and third rows. The actual size of the distance actually measured by the vehicle position detection unit 11 is presented. For example, the visual information presenting unit 31 turns off the portion corresponding to the actual distance of the measured distance from the end of the LED array 16b, 16c in the second row and the third row on the side corresponding to the backward direction of the host vehicle. Then, the LED arrays 16b and 16c are controlled so that the other corresponding portions are lit.

Thus, the visual information presentation unit 31, as shown in FIG. 17 (b), the distance between the vehicle and an object ahead of (other vehicle) is F _d, between the vehicle and the rear of the object (another vehicle) When the distance is B _d and the distance between the host vehicle and the object on the left side in the reverse direction is M _d , the distance from the right end of the LED array 16a in the first column is shown in FIG. with the only non-lighting substantial portion of the F _d, only a substantial portion of the distance _{B d} from the left edge of the fourth column of the LED array 16d and non-lighting, further, the second and third columns of LED arrays 16b, 16c leftmost only substantial portion of the distance _{M d} from to non-illuminated, will control the LED array 16 a to 16 d.

  Thus, the vehicle information display apparatus can present visual presentation information when the driving scene is a parallel parking scene.

  Further, the vehicle information display device shifts the process from step S1 to step S31 in FIG. 14, and when the driving scene determining unit 14 determines that the driving scene is a straight traveling scene, in step S44. The display processing for straight running is performed by the presentation information determination unit 30 and the visual information presentation unit 31.

  First, the presentation information determination unit 30 determines the content of the presentation information to be presented to the driver during straight running. As described above, since the driver's operation of the steered wheel during the straight running is discrete, the driver's interest is whether or not the host vehicle tends to deviate from the traveling lane. Therefore, the vehicle information display device detects the position of the host vehicle in the travel lane by the host vehicle position detection unit 11. This detection process can be performed on the basis of the detection result of the traveling lane by the camera and the image analysis circuit of the host vehicle position detection unit 11 as in step S1. Based on the position of the host vehicle in the travel lane detected by the host vehicle position detection unit 11, the presentation information determination unit 30 passes a predetermined time with respect to the right or left lane boundary of the host vehicle that is the direction of departure from the travel lane. The distance to the rear host vehicle position and the distance from the current rear part of the host vehicle are determined as the presentation information.

In order to explain this specifically, as shown in FIG. 18 (b), the distances between the front and rear portions of the host vehicle and the left and right lane boundaries are defined as d " _fr , d" _fl , d " _br , respectively. , D ″ _bl . Here, when the distance (d ″ _fr− d ″ _br ) or the distance (d ″ _fl− d ″ _bl ) is smaller than 0, the host vehicle proceeds rightward or leftward with respect to the traveling lane. Since it is in a state of being deviated, it will deviate from the traveling lane after a predetermined time has elapsed. In order to visually present the driver to that effect, the presentation information determination unit 30 is a distance d ″ from the front portion of the host vehicle after t ″ seconds with respect to the right or left lane boundary of the host vehicle that is the departure direction. ^* _Fr (or d " ^* _fl ) and the distance d" ^* _br (or d " ^* _bl ) between the rear of the vehicle after t" seconds and the distance d " _fr (current with the front of the vehicle) Or, d ″ _fl ) and the distance d ″ _br (or d ″ _bl ) between the current rear portion of the host vehicle and the current information are determined as information presented to the driver.

  The visual information presentation unit 31 presents visual presentation information to the driver based on the presentation information determined by the presentation information determination unit 30. In this case, as shown in FIG. 18A, the visual information presentation unit 31 changes the light emission forms of the four rows of LED arrays 16a to 16d according to the presentation information determined by the presentation information determination unit 30, Present visual presentation information to the driver.

Specifically, the visual information presentation unit 31 uses the LED array 16a in the first column from the top among the four columns of LED arrays 16a to 16d, and deviates from the presentation information determined by the presentation information determination unit 30. In the second column from the top, information indicating the distance d ″ ^* _fr (or d ″ ^* _fl ) from the front of the host vehicle after t ″ seconds with respect to the right or left lane boundary of the host vehicle that is the direction is displayed. Of the presentation information determined by the presentation information determination unit 30 using the LED array 16b, the distance d "of the rear part of the host vehicle after t" seconds with respect to the right or left lane boundary of the host vehicle that is the departure direction. _Present information indicating ^* _br (or d " ^* _bl ). Further, the visual information presentation unit 31 uses the LED array 16c in the third column from the top, and the distance d ″ _fr (the distance from the front part of the current vehicle to the right or left lane boundary of the own vehicle that is the departure direction). Or d ″ _fl ), and using the LED array 16d in the fourth column from the top, the distance d from the rear of the current vehicle to the right or left lane boundary of the vehicle in the departure direction d Information indicating " _br (or d" _bl ) is presented.

  At this time, the visual information presentation unit 31 presents the actual size of the actually measured distance as information indicating the distance to be presented using the LED arrays 16a, 16b, 16c, and 16d in each column. For example, the visual information presenting unit 31 makes the actual distance equivalent part of the measured distance unlit with the right end (or left end) of the LED arrays 16a, 16b, 16c, and 16d in each column as the base point, and the other equivalent parts. The LED arrays 16a, 16b, 16c, and 16d are controlled so as to light up.

Accordingly, as shown in FIG. 18 (a), the visual information presentation unit 31 only _applies a corresponding portion of a distance d ″ ^* _fr (or d ″ ^* _fl ) from the right end (or left end) of the LED array 16a in the first column. Only the portion corresponding to the distance d ″ ^* _br (or d ″ ^* _bl ) from the right end (or left end) of the LED array 16b in the second row is turned off, and the right end (or left end) of the LED array 16c in the third row is turned off. the distance _d and _"fr (or _{d" fl)} a substantial portion only non lit, only a substantial portion of the right end of the fourth column of the LED array 16d (or left) from the distance _{d "br} (or _{d" bl)} non-lighting and Thus, the LED arrays 16a, 16b, 16c, and 16d are controlled.

  Thus, the vehicle information display apparatus can present visual presentation information when the driving scene is a straight traveling scene.

  Further, the vehicle information display device shifts the process from step S1 → step S31 → step S9 → step S10 → step S11 in FIG. 14, and the driving scene determination unit 14 determines that the driving scene is a parallel running scene. In the case where it has been done, in step S45, the presentation information determination unit 30 and the visual information presentation unit 31 present information for supporting parallel running with other vehicles. First, in the vehicle information display device, the presentation information determination unit 30 determines the content of information to be presented to the driver. As described above, the driver's interest during parallel running is an angle relative to the position of another vehicle adjacent to the host vehicle. Accordingly, the presentation information determination unit 30 detects the vehicle detected by the four object detection ranges SN1, SN2, SN3, and SN4 provided as the relative distance detection unit 10 at the left and right portions of the vehicle shown in FIG. The distance between the front and rear of the vehicle and the other vehicle is determined as the presentation information.

  The visual information presentation unit 31 presents visual presentation information to the driver based on the presentation information determined by the presentation information determination unit 30. In this case, as shown in FIG. 19A, the visual information presentation unit 31 changes the light emission forms of the four rows of LED arrays 16a to 16d according to the presentation information determined by the presentation information determination unit 30, Present visual presentation information to the driver.

  Specifically, the visual information presentation unit 31 uses the LED array 16a of the first row from the top of the four rows of LED arrays 16a to 16d, and among the presentation information determined by the presentation information determination unit 30. In addition to presenting information indicating the distance between the front part of the vehicle and another adjacent vehicle, information indicating the distance between the rear part of the host vehicle and the adjacent other vehicle is presented using the LED array 16b in the second column from the top. To do.

  At this time, the visual information presentation unit 31 is actually measured by the relative distance detection unit 10 as information indicating the distance between the front part of the host vehicle and the adjacent other vehicle presented using the LED array 16a in the first column. Present the exact distance. For example, the visual information presenting unit 31 turns off the portion corresponding to the actual size of the measured distance from the right end or the left end of the LED array 16a in the first row, with the end where the other adjacent vehicle is present as the base point, and otherwise. The LED array 16a is controlled so that a corresponding portion of the LED is lit.

  On the other hand, the visual information presenting unit 31 is a distance actually measured by the relative distance detecting unit 10 as information indicating the distance between the rear portion of the host vehicle and the adjacent other vehicle presented using the LED array 16b in the second row. Present the actual size. For example, the visual information presentation unit 31 turns off the portion corresponding to the actual distance of the measured distance from the right end or the left end of the LED array 16b in the second row, with the end where the adjacent other vehicle is present as the base point, otherwise The LED array 16b is controlled so that a corresponding portion of the LED is lit.

The visual information presentation unit 31 performs control so that the LED arrays 16c and 16d in the third row and the fourth row are not lit. Thus, the visual information presentation unit 31, as shown in FIG. 19 (b), the distance between the other vehicle adjacent to the right front and the vehicle of the vehicle is d _f, the self and the rear of the vehicle when the distance between the other vehicle adjacent to the right side of the vehicle is d _b, as shown in FIG. 19 (a), only the significant portion of the distance d _f from the right edge of the first column of the LED array 16a unlit and while, only a substantial portion of the distance _{d b} from the right end of the second row of the LED array 16b to the non-lighting will control the LED array 16a, the 16b.

  Thus, the vehicle information display device can present visual presentation information when the driving scene is a parallel running scene on a curved road.

  Further, the vehicle information display device shifts the process from step S1 → step S31 → step S9 → step S10 → step S11 in FIG. 14, and the driving scene determination unit 14 determines that the driving scene is not a parallel running scene. In such a case, in step S46, the presentation information determination unit 30 and the visual information presentation unit 31 present information for supporting the narrow-lane traveling of the host vehicle. First, in the vehicle information display device, the presentation information determination unit 30 determines the content of information to be presented to the driver. As described above, the driver's interest when traveling on narrow roads is obstacles, walls, and the like located on the left and right of the traveling vehicle. Therefore, the presentation information determination unit 30 can detect up to the objects detected by the four object detection ranges SN1, SN2, SN3, and SN4 provided in the left and right parts of the host vehicle shown in FIG. Is determined as the presentation information.

  The visual information presentation unit 31 presents visual presentation information to the driver based on the presentation information determined by the presentation information determination unit 30. In this case, as shown in FIG. 20A, the visual information presentation unit 31 changes the light emission forms of the four rows of LED arrays 16a to 16d according to the presentation information determined by the presentation information determination unit 30, Present visual presentation information to the driver.

  Specifically, the visual information presentation unit 31 uses the LED array 16a of the first row from the top of the four rows of LED arrays 16a to 16d, and among the presentation information determined by the presentation information determination unit 30. Information on the front of the vehicle is presented, and information on the rear of the host vehicle is presented using the LED array 16b in the second row from the top. At this time, the visual information presenting unit 31 uses the LED array 16a in the first column as information related to the front part of the host vehicle, and the right direction of the front part of the host vehicle actually measured by the relative distance detection unit 10 The actual distance of the object and the object in the left direction is presented.

  For example, the visual information presenting unit 31 uses the right end and the left end of the LED array 16a in the first row as a base point, turns off the LED corresponding to the actual distance corresponding to the measured distance, and lights up the LED corresponding to the other corresponding portions. 16a is controlled. On the other hand, the visual information presentation unit 31 uses the second row of the LED array 16b to present information about the rear part of the host vehicle, the rear part of the host vehicle actually measured by the relative distance detection unit 10, the object in the right direction, Present the actual distance to the object in the left direction. For example, the visual information presenting unit 31 uses the right end and the left end of the LED array 16b in the second row as the base points, turns off the LED corresponding to the actual size of the measured distance, and lights up the other LED equivalents. 16b is controlled.

The visual information presentation unit 31 performs control so that the LED arrays 16c and 16d in the third row and the fourth row are not lit. Therefore, as shown in FIG. 20B, the visual information presenting unit 31 has a distance between the front part of the host vehicle and the object in the right direction as RF _d , and the distance between the front part of the host vehicle and the object in the left direction is When the distance is LF _d , the distance between the rear part of the host vehicle and the object in the right direction is RB _d , and the distance between the rear part of the host vehicle and the object in the left direction is LB _d , FIG. as shown in), while the corresponding portion and the left end of the distance RF _d from the right edge of the first column of the LED array 16a and corresponding portions only non-illuminated distance LF _d, the distance from the right edge of the second row of the LED array 16b RB _The LED arrays 16a and 16b are controlled so that only the portion corresponding to _{d and} the portion corresponding to the distance LB _d from the left end are not lit.

  Thus, the vehicle information display device can present visual presentation information when the driving scene is a narrow road running scene of a curved road.

  Further, the vehicle information display apparatus shifts the process from step S1 to step S31 in FIG. 14 to step S9 to step S10, and the driving scene is determined not to be a narrow road driving scene or a parallel driving scene by the driving scene determination unit 14. If determined, in step S47, the presentation information determination unit 30 and the visual information presentation unit 31 present information for supporting the vehicle's running on a curved road.

  First, in the vehicle information display device, the presentation information determination unit 30 determines the content of information to be presented to the driver. As described above, the driver's interest when traveling on a curved road is the relative position and approach angle of the vehicle in the left-right direction with respect to the traveling lane. Therefore, the vehicle information display device detects the position and orientation of the host vehicle in the travel lane by the host vehicle position detection unit 11. This detection can be performed on the basis of the detection result of the traveling lane by the camera and the image analysis circuit included in the own vehicle position detection unit 11 as in step S1.

Specifically, as shown in FIG. 21 (b), the distances between the front and rear portions of the host vehicle and the left and right lane boundaries are respectively represented as d " _fr , d" _fl , d " _br , d" _bl . To do. Further, the position of the host vehicle after t ″ seconds is estimated, and the distances to the right and left lane boundaries of the host vehicle at the position are d ″ ^* _fr and d ″ ^* _fl . Further, the width of the host vehicle is w ″. And The presentation information determination unit 15 determines the relationship between the distance and the host vehicle as information to be presented to the driver.

  The visual information presentation unit 31 presents visual presentation information to the driver based on the presentation information determined by the presentation information determination unit 30. In this case, as shown in FIG. 21A, the visual information presentation unit 31 changes the light emission forms of the four rows of LED arrays 16a to 16d according to the presentation information determined by the presentation information determination unit 30, Present visual presentation information to the driver.

Here, the width of the LED arrays 16a to 16d is assumed to be l. The visual information presentation unit 31 uses the LED array 16a in the first row from the top of the four rows of LED arrays 16a to 16d, and among the presentation information determined by the presentation information determination unit 30, the visual information presentation unit 31 For example, the visual information presentation unit 31 uses the left end of the LED array 16a in the first row as a base point to present information indicating the relative relationship between the right and left lane boundaries of the own vehicle at the vehicle position and the own vehicle. The length corresponding to d ″ ^* _fl × l / (d ″ ^* _fl + w ″ + d ″ ^* _fr ) is not lit, and w ″ × l / (d ″ ^* _fl + w ″ + d ″ ^* _fr ) from the end point. The LED array is turned on so that the length corresponding to d ″ ^* _fr × l / (d ″ ^* _fl + w ″ + d ″ ^* _fr ) is not lit from the end point. 16a is controlled.

On the other hand, the visual information presenting unit 31 uses the LED array 16b in the second row from the top among the four rows of LED arrays 16a to 16d, and present vehicle of the present information determined by the presentation information determining unit 30. Information indicating the relative relationship between the right and left lane boundaries of the host vehicle at the position and the host vehicle is presented. For example, the visual information presenting unit 31 _turns off the length corresponding to d ″ _bl × l / (d ″ _bl + w ″ + d ″ _br ) with the left end of the LED array 16b in the second row as the base point, A length corresponding to w ″ × l / (d ″ _bl + w ″ + d ″ _br ) is lit from the end point, and further, d ″ _br × l / (d ″ _bl + w ″ + d ″ _br ) from the end point The LED array 16b is controlled so that the length portion to be turned off is not lit. The visual information presentation unit 31 performs control so that the LED arrays 16c and 16d in the third row and the fourth row are not lit.

  Thus, the vehicle information display device can present visual presentation information when the driving scene is a curved road scene. Then, the vehicle information display device shifts the processing to step S32 in FIG. 14, and the information utilization degree estimation unit 20 displays the visual information presented to the driver via the visual information presentation unit 31. It is estimated whether or not is used.

  Further, the vehicle information display device shifts the process from step S1 → step S31 → step S9 → step S16 → step S17 in FIG. 14, and the driving scene determination unit 14 determines that the driving scene is a parallel running scene. In the case where it has been done, in step S48, the presentation information determination unit 30 and the visual information presentation unit 31 present information for supporting parallel running with other vehicles.

  First, in the vehicle information display device, the presentation information determination unit 30 determines the content of information to be presented to the driver. Specifically, the presentation information determination unit 30 has four object detection ranges SN1, provided in the left and right portions of the host vehicle shown in FIG. 2 as the relative distance detection unit 10 as in step S45 described above. The distance between the front and rear parts of the host vehicle detected by SN2, SN3, and SN4 and the other vehicle is determined as the presentation information.

  Then, the visual information presentation unit 31 is based on the presentation information determined by the presentation information determination unit 30 and, as shown in FIG. Among the presentation information determined by the presentation information determination unit 30 using the LED array 16a in the column, the information indicating the distance between the front portion of the host vehicle and another adjacent vehicle is presented, and the second column from the top The LED array 16b is used to present information indicating the distance between the rear portion of the host vehicle and another adjacent vehicle. The visual information presentation unit 31 performs control so that the LED arrays 16c and 16d in the third row and the fourth row are not lit.

  Thus, the vehicle information display apparatus can present visual presentation information when the driving scene is a parallel running scene that is not a curved road. Then, the vehicle information display device shifts the processing to step S33 in FIG. 14, and the information utilization degree estimation unit 20 displays the visual information presented to the driver via the visual information presentation unit 31. It is estimated whether or not is used.

  Further, the vehicle information display device shifts the process from step S1 → step S31 → step S9 → step S16 → step S17 in FIG. 14, and the driving scene determination unit 14 determines that the driving scene is not a parallel running scene. In such a case, in step S49, the presentation information determination unit 30 and the visual information presentation unit 31 present information for assisting the narrow vehicle traveling of the host vehicle.

  First, in the vehicle information display device, the presentation information determination unit 30 determines the content of information to be presented to the driver. Specifically, the presentation information determination unit 30 has four object detection ranges SN1, provided in the left part and the right part of the host vehicle shown in FIG. The distance to the object detected by SN2, SN3, SN4 is determined as presentation information.

  Then, the visual information presentation unit 31 is based on the presentation information determined by the presentation information determination unit 30 and, as shown in FIG. 20 (a), 1 from the top of the four rows of LED arrays 16a to 16d. Among the presentation information determined by the presentation information determination unit 30 using the LED array 16a in the column, information related to the front part of the host vehicle is presented, and the LED array 16b in the second column from the top is used. Present information about the rear of the vehicle. The visual information presentation unit 31 performs control so that the LED arrays 16c and 16d in the third row and the fourth row are not lit.

  Thus, the vehicle information display device can present visual presentation information when the driving scene is a narrow road running scene that is not a curved road. Then, the vehicle information display apparatus shifts the processing to step S34 in FIG. 14, and the information utilization degree estimation unit 20 displays the visual information presented to the driver via the visual information presentation unit 31. It is estimated whether or not is used.

  Further, the vehicle information display device shifts the process from step S1 to step S31 in FIG. 14 to step S9 to step S16, and the driving scene is determined not to be a narrow road driving scene or a parallel driving scene by the driving scene determination unit 14. If determined, in step S50, the display information determining unit 30 and the visual information presenting unit 31 perform display processing for straight running.

First, the presentation information determination unit 30 determines the content of the presentation information to be presented to the driver during straight running. Specifically, the presentation information determination unit 30, like step S 44 described above, determines the distance d ″ ^* of the front of the host vehicle after t ″ seconds with respect to the right or left lane boundary of the host vehicle that is the departure direction ^. The distance d ″ ^* _br (or d ″ ^* _bl ) between _fr (or d ″ ^* _fl ) and the rear part of the host vehicle after t ″ seconds and the distance d ″ _fr (or the current front part of the host vehicle) d ″ _fl ) and the distance d ″ _br (or d ″ _bl ) between the current rear portion of the host vehicle and the current information are determined as information to be presented to the driver.

Then, the visual information presentation unit 31 is based on the presentation information determined by the presentation information determination unit 30 and, as shown in FIG. Among the presentation information determined by the presentation information determination unit 30 using the LED array 16a in the column, the front of the host vehicle after t ″ seconds with respect to the right or left lane boundary of the host vehicle that is the departure direction Information indicating the distance d ″ ^* _fr (or d ″ ^* _fl ) is presented, and the LED array 16b in the second column from the top is used to indicate the deviation direction in the presentation information determined by the presentation information determination unit 30. Information indicating the distance d ″ ^* _br (or d ″ ^* _bl ) from the rear of the host vehicle after t ″ seconds to the right or left lane boundary of the host vehicle is presented. Further, the visual information presentation unit 31 uses the LED array 16c in the third column from the top, and the distance d ″ _fr (the distance from the front part of the current vehicle to the right or left lane boundary of the own vehicle that is the departure direction). Or d ″ _fl ), and using the LED array 16d in the fourth column from the top, the distance d from the rear of the current vehicle to the right or left lane boundary of the vehicle in the departure direction d Information indicating " _br (or d" _bl ) is presented.

  Thus, the vehicle information display apparatus can present visual presentation information when the driving scene is a straight traveling scene.

  The vehicle information display device can display visual presentation information to the driver in each driving scene according to such a series of procedures.

  In this vehicle information display device, the visual information presentation unit 31 is not necessarily a four-row LED array. For example, a liquid crystal display connected to the lower part of the front window without a seam, or a virtual image on the window. The same applies to a head-up display or the like that displays arbitrary information by projecting.

[Effect of the third embodiment]
As described above in detail, according to the vehicular information display device shown as the third embodiment of the present invention, as the visual information presentation unit 31, four rows of LED arrays 16a to 16d provided at the lower part of the front window. By using, it is possible to present more useful information to the driver in each driving scene determined by the driving scene determination unit 21.

  The above-described embodiment is an example of the present invention. For this reason, the present invention is not limited to the above-described embodiment, and even if it is a form other than this embodiment, as long as it does not depart from the technical idea according to the present invention, the design and the like Of course, various modifications are possible.

  The above-described embodiment is an example of the present invention. For this reason, the present invention is not limited to the above-described embodiment, and various modifications can be made depending on the design and the like as long as the technical idea according to the present invention is not deviated from this embodiment. Of course, it is possible to change.

It is a block diagram shown about the composition of the information display device for vehicles concerning a 1st embodiment to which the present invention is applied. It is a top view shown about the specific example of the relative distance detection part with which the information display apparatus for vehicles which concerns on 1st Embodiment to which this invention is applied is provided. It is a flowchart shown about a series of processes when the information display apparatus for vehicles which concerns on 1st Embodiment to which this invention is applied displays visual presentation information to a driver | operator in each driving scene. It is a figure which shows the specific example of the visual information presentation part with which the information display apparatus for vehicles which concerns on 1st Embodiment to which this invention is applied is provided, and is a figure for demonstrating a mode that the display for parallel parking is performed. It is a figure which shows the specific example of the visual information presentation part with which the information display apparatus for vehicles which concerns on 1st Embodiment to which this invention is applied is provided, and has shown the information for assisting the left-right position adjustment of a garage parking scene It is a figure for demonstrating a mode. It is a figure which shows the specific example of the visual information presentation part with which the information display apparatus for vehicles which concerns on 1st Embodiment to which this invention is applied is equipped, and has shown the information for assisting the front-back position adjustment of a garage parking scene It is a figure for demonstrating a mode. It is a figure which shows the specific example of the visual information presentation part with which the information display apparatus for vehicles which concerns on 1st Embodiment to which this invention is applied is provided, and is a figure for demonstrating a mode that the display for straight running is performed. It is a figure which shows the specific example of the visual information presentation part with which the information display apparatus for vehicles which concerns on 1st Embodiment to which this invention is applied is equipped, and shows a mode that the information for assisting parallel running with other vehicles is being presented. It is a figure for demonstrating. It is a figure which shows the specific example of the visual information presentation part with which the information display apparatus for vehicles which concerns on 1st Embodiment to which this invention is applied is equipped, and shows a mode that the information for assisting the narrow road driving | running | working of the own vehicle is being presented. It is a figure for demonstrating. It is a figure which shows the specific example of the visual information presentation part with which the information display apparatus for vehicles which concerns on 1st Embodiment to which this invention is applied is equipped, and shows a mode that the information for assisting the curve driving | running | working of the own vehicle is presented. It is a figure for demonstrating. It is a block diagram shown about the structure of the information display apparatus for vehicles which concerns on 2nd Embodiment to which this invention is applied. It is a flowchart shown about a series of processes when the information display apparatus for vehicles which concerns on 2nd Embodiment to which this invention is applied displays visual presentation information to a driver | operator in each driving scene. It is a block diagram shown about the structure of the information display apparatus for vehicles which concerns on 3rd Embodiment to which this invention is applied. It is a flowchart shown about a series of processes at the time of the vehicle information display apparatus which concerns on 3rd Embodiment to which this invention is applied displaying a visual presentation information to a driver | operator in each driving scene. It is a figure which shows the specific example of the visual information presentation part with which the information display apparatus for vehicles which concerns on 3rd Embodiment to which this invention is applied is provided, and has shown the information for assisting the left-right position adjustment of a garage parking scene It is a figure for demonstrating a mode. It is a figure which shows the specific example of the visual information presentation part with which the information display apparatus for vehicles which concerns on 3rd Embodiment to which this invention is applied is provided, and has shown the information for assisting the front-back position adjustment of a garage parking scene It is a figure for demonstrating a mode. It is a figure which shows the specific example of the visual information presentation part with which the information display apparatus for vehicles which concerns on 3rd Embodiment to which this invention is applied is provided, and is a figure for demonstrating a mode that the display for parallel parking is performed. It is a figure which shows the specific example of the visual information presentation part with which the information display apparatus for vehicles which concerns on 3rd Embodiment to which this invention is applied is provided, and is a figure for demonstrating a mode that the display for straight running is performed. It is a figure which shows the specific example of the visual information presentation part with which the information display apparatus for vehicles which concerns on 3rd Embodiment to which this invention is applied is provided, and shows a mode that the information for assisting parallel running with other vehicles is being presented. It is a figure for demonstrating. It is a figure which shows the specific example of the visual information presentation part with which the information display apparatus for vehicles which concerns on 3rd Embodiment to which this invention is applied is provided, and shows a mode that the information for assisting the narrow road driving | running | working of the own vehicle is presented. It is a figure for demonstrating. It is a figure which shows the specific example of the visual information presentation part with which the information display apparatus for vehicles which concerns on 3rd Embodiment to which this invention is applied is equipped, and shows a mode that the information for assisting the curve driving | running | working of the own vehicle is presented. It is a figure for demonstrating.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Own vehicle position detection part 12 Running environment detection part 13 Information utilization degree estimation part 14 Driving scene decision part 15 Presentation information decision part 16 Visual information presentation part 16 LED array 16a, 16b, 16c, 16d LED array 20 Information utilization degree estimation part DESCRIPTION OF SYMBOLS 21 Driving scene determination part 22 Operator operation detection part 22 Driver operation detection part 23 Driver operation log | history holding part 30 Presentation information determination part 31 Visual information presentation part 100 Front window 101,101 Front pillar

Claims (13)

An object detection means for detecting a distance to an object existing around the host vehicle;
A host vehicle position detecting unit for detecting a host vehicle position in a travel lane in which the host vehicle is traveling; a travel environment detecting unit for detecting a travel environment in which the host vehicle is traveling;
The distance to the object existing around the host vehicle detected by the object detection unit, the host vehicle position in the travel lane on which the host vehicle travels detected by the host vehicle position detection unit, and the travel environment detection unit A driving scene in which the driving scene in which the host vehicle is traveling is one of a plurality of predetermined driving scenes based on the driving environment in which the host vehicle is detected A determination means;
According to the driving scene determined by the driving scene determining means, the distance to the object existing around the own vehicle detected by the object detecting means, or the traveling lane detected by the own vehicle position detecting means Presenting information determining means for determining any of the vehicle positions in the vehicle as the content of the presenting information to be presented to the driver;
Display means for presenting the presentation information determined by the presentation information determination means to the driver,
The display means is formed of a plurality of light emitting units arranged in the horizontal direction, and changes the display form so that the driver can recognize the distance in the horizontal direction or the vertical direction with respect to the host vehicle. Information indicating a change in the distance is presented , and when an object is detected around the host vehicle by the object detecting unit, a length portion corresponding to the distance to the object existing around the host vehicle is first A vehicle information display device having a display form and a portion other than the first display form being a second display form .   The driving scene determination means includes a detection result of a parking frame, a determination result that the own vehicle position is in a parking lot, a state of a transmission of the own vehicle, an operation frequency of a steering wheel of the own vehicle, and a curvature on a curved road. The driving scene in which the host vehicle is traveling is based on a radius, a road width in the driving lane, or a driving scene determination rule determined in accordance with the inter-vehicle distance between the host vehicle and the other vehicle. The vehicle information display according to claim 1, wherein the vehicle information display is determined to be any one of a parking scene, a parallel parking scene, a straight traveling scene, a curved traveling scene, a parallel traveling scene, or a narrow traveling scene. apparatus. The display means includes
It has two or more display areas arranged in the horizontal direction,
When the driving scene determined by the driving scene determining means is a parallel parking scene and an object present on the right or left side of the host vehicle is detected by the object detecting means, an arbitrary row of A length portion corresponding to a distance to an object existing on the right side of the host vehicle with the right end or the left end of the display area as a base point is set as a first display form, and a portion other than the first display form is set as a second display form. The vehicle information display device according to claim 1 , wherein: The display means includes
It has two or more display areas arranged in the horizontal direction,
When the driving scene determined by the driving scene determining means is a parallel parking scene, and an object present in the right front or left front of the host vehicle is detected by the object detecting means, an arbitrary row of A length portion corresponding to a distance to an object existing in the right front or left front of the host vehicle with the right end or the left end of the display area as a base point is set as a first display form, and a portion other than the first display form is set as a second display form. As a display form,
When the driving scene determined by the driving scene determination means is a parallel parking scene and an object present on the right rear or left rear of the host vehicle is detected by the object detection means, display of another row A length portion corresponding to a distance to an object existing at the right rear or left rear of the host vehicle with the right end or the left end of the region as a base point is set as a first display form, and a portion other than the first display form is displayed as a second display. The vehicle information display device according to claim 1 , wherein the vehicle information display device is in a form. The display means includes
When the driving scene determined by the driving scene determination means is a parallel parking scene and an object present behind the host vehicle is detected by the object detection means, the right end or the left end of the display area is used as a base point. , a length portion corresponding to the distance to the object present in the rear of the vehicle as a first display mode, to claim 1, characterized in that the portion other than the first display mode and the second display mode The vehicle information display device described. The display means includes
It has two or more display areas arranged in the horizontal direction,
When the driving scene determined by the driving scene determining means is a parallel parking scene and an object existing in front of the host vehicle is detected by the object detecting means, the right end of the display area in any one row Or, with the left end as the base point, the length corresponding to the distance to the object existing ahead of the host vehicle is the first display form, and the part other than the first display form is the second display form,
When the driving scene determined by the driving scene determining means is a parallel parking scene and an object existing behind the host vehicle is detected by the object detecting means, the right end of the display area of another row or A length portion corresponding to a distance to an object existing behind the host vehicle with the left end as a base point is a first display form, and a portion other than the first display form is a second display form. The vehicle information display device according to claim 1 . The display means includes
It has two or more display areas arranged in the horizontal direction,
When the driving scene determined by the driving scene determining means is a narrow road traveling scene and an object present in the right front or left front of the own vehicle is detected by the object detecting means, or the own vehicle position detecting means When the position of the host vehicle in the travel lane is detected by the distance from the right end or the left end of an arbitrary one row display area to the object existing right front or left front of the host vehicle, or The length portion corresponding to the distance from the right or left side of the traveling lane to the right front or left front of the host vehicle is the first display form, and the part other than the first display form is the second display form.
When the driving scene determined by the driving scene determination means is a narrow road traveling scene and an object present on the right rear or left rear of the own vehicle is detected by the object detection means, or by the own vehicle position detection means When the position of the host vehicle in the travel lane is detected, the distance to an object existing on the right rear or left rear of the host vehicle from the right end or the left end of the display area of another row, or the travel The length corresponding to the distance from the right or left side of the lane to the right rear or left rear of the host vehicle is the first display form, and the part other than the first display form is the second display form. Item 4. The vehicle information display device according to Item 1 . The display means includes
It has two or more display areas arranged in the horizontal direction,
When the driving scene determined by the driving scene determining means is a side-by-side driving scene, and an object present in the right front or left front of the host vehicle is detected by the object detecting means, an arbitrary row of A length portion corresponding to a distance to an object existing in the right front or left front of the host vehicle with the right end or the left end of the display area as a base point is set as a first display form, and a portion other than the first display form is set as a second display form. As a display form,
When the driving scene determined by the driving scene determining means is a parallel running scene and an object present on the right rear or left rear of the host vehicle is detected by the object detecting means, display of another row A length portion corresponding to a distance to an object existing at the right rear or left rear of the host vehicle with the right end or the left end of the region as a base point is set as a first display form, and a portion other than the first display form is displayed as a second display. The vehicle information display device according to claim 1 , wherein the vehicle information display device is in a form. When the driving scene determined by the driving scene determining means is a curved road driving scene, the presentation information determining means reaches the host vehicle detected by the host vehicle position detecting means after a predetermined time has elapsed. With respect to the distance in the left-right direction from the front of the host vehicle to the lane boundary of the traveling lane at the assumed arrival position, and the distance in the left-right direction from the rear of the host vehicle to the lane boundary of the traveling lane detected by the object detection means , Calculate the ratio of the vehicle width,
The display means includes
It has two or more display areas arranged in the horizontal direction,
Based on the ratio of the lateral distance to the lane boundary with respect to the front portion of the host vehicle at the assumed arrival position of the host vehicle calculated by the presentation information determining unit, the display area in any one column display area The part corresponding to the host vehicle position is the second display form, the part corresponding to the distance in the left-right direction to the lane boundary with respect to the front part of the host vehicle is the first display form,
Based on the ratio of the lateral distance to the lane boundary with respect to the rear portion of the own vehicle at the assumed arrival position of the own vehicle calculated by the presentation information determining means, the own vehicle position in the display area of another column 2. The vehicle information display device according to claim 1 , wherein a portion corresponding to the second display form is a second display form, and a part corresponding to the distance in the left-right direction to the lane boundary with respect to the rear portion of the host vehicle is the first display form. . The display means includes
It has two or more display areas arranged in the horizontal direction,
When the driving scene determined by the driving scene determination means is a straight traveling scene, the front part of the host vehicle at the assumed arrival position reached after a predetermined time of the host vehicle detected by the host vehicle position detection means The distance from the right and left sides of the vehicle to the right and left lane boundaries of the travel lane, and from the right and left sides of the front of the vehicle at the current vehicle position detected by the vehicle position detection means As a result of comparing the distance to the lane boundary in the right and left directions by the presentation information determining means, when there is a direction in which the distance is reduced at the right front or left front of the host vehicle,
A length portion corresponding to the distance from the right front or left front of the host vehicle to the right or left lane boundary at the assumed arrival position of the host vehicle is defined as a first portion with the right end or the left end of the display area of any one column as a base point. The display form, the part other than the first display form is the second display form,
A length portion corresponding to the distance from the right front or left front of the current vehicle to the right or left lane boundary from the right end or left end of the display area of the other column is set as the first display form, The vehicle information display device according to claim 1 , wherein a portion other than the one display form is set as the second display form. Comprising information usage estimation means for estimating whether or not the driver is using visual presentation information presented to the driver by the display means;
The driving scene determination means refers to a driving scene determination rule that is referred to when determining the driving scene when the information usage estimation means estimates that the driver does not use the visual presentation information. changing the vehicle information display apparatus according to any one of claims 1 to 1 0, characterized in. The information utilization degree estimating means includes:
Gaze direction detecting means for detecting the gaze direction of the driver,
Based on the line-of-sight direction of the driver detected by said visual line detection means, the vehicle according to claim 1 1 where the driver and estimates whether or not the use of the visual presentation information Information display device. The information utilization degree estimating means includes:
Driver operation detecting means for detecting the driving operation of the vehicle by the driver;
When the driver's operation detection means detects the driver's operation, the display means presents the state of the visual presentation information presented to the driver in combination with the driver's operation as a driver operation history. A driver operation history holding means for holding,
Based on the driver's operation history holding unit driver operation history held in the driver according to claim 1 1, wherein the estimating whether or not the use of the visual presentation information Vehicle information display device.

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