JP2000168400A - Display device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make respective information quickly and properly recognizable by a driver, in a display device for a vehicle displaying a plurality of the information. SOLUTION: Information like a road map is provided in a large amount, but an entertainment display 11 indicating information of a low degree of urgency is arranged in the center position of a vehicle in a car width direction. Information like route guidance, urgent road traffic, and an obstacle touch alarm, is provided in a small amount, but a driving display 13 indicating information of a high degree of urgency is arranged in a driver side position of the entertainment display 11 and in its diagonal information position. The driving display 13 is arranged in a front side position in a vehicle longitudinal direction from the entertainment display 11, and the driving display 13 is set so as to improve visibility better than the entertainment display 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a vehicle display device used for displaying road map information, route guidance information, emergency road traffic information, and the like.

[0002]

2. Description of the Related Art Heretofore, as a display device for a vehicle of this type, a display device for displaying road map information and the like has been known (for example, see Japanese Patent Application Laid-Open No. 8-194892). In this apparatus, road map information is displayed on a display device, and a route is guided by voice as a route guidance system. Further, the road map information is used to obtain curve information ahead of the traveling road, and when entering the curve, an alert corresponding to the traveling state such as the vehicle speed is notified to the driver by voice. . Priorities are set for the route guidance information and the curve information according to the situation, and when it is necessary to simultaneously issue the two pieces of information, the information is issued in accordance with the priorities.

[0003]

By the way, in recent years, computerization has progressed, and a lot of information has been incorporated into a running vehicle. Such information includes, for example, emergency road traffic information, route guidance information, and obstacle contact warning. Such information is often presented to a driver or the like by displaying it on a display device.

However, when a large amount of information is displayed on one display device as described above, the following inconvenience may occur. That is, for example, even if a situation in which an obstacle contact warning needs to be displayed when the road map information is displayed on the display device occurs, the display of the obstacle contact warning is delayed because the road map is displayed. There is a possibility that the driver may not be able to respond to an emergency situation.

Therefore, it is conceivable that priorities are set in advance to the information as in the above-mentioned prior art, and each information is displayed in accordance with the priorities.

However, even if the information is displayed with the priority set as described above, for example, when the screen of the display device is suddenly switched while the road map information is displayed and the obstacle contact warning is displayed. In such a case, the driver may not immediately recognize the obstacle contact warning, and as a result, it may be difficult to respond quickly.

[0007] The present invention has been made in view of such circumstances, and an object of the present invention is to provide a display device for a vehicle that displays a plurality of pieces of information, in which a driver can quickly and accurately display each piece of information. It is to make it possible to recognize.

[0008]

Means for Solving the Problems In order to achieve the above object, the present inventors have completed the present invention by focusing on the following points.

[0009] That is, the information displayed during the running of the vehicle includes a call center such as an obstacle contact warning that alerts the driver to the danger of contact with an obstacle, emergency road traffic information, or parking lot information. As shown in FIG. 25, when such information is plotted in a coordinate system in which the ordinate represents urgency and the abscissa represents information amount, the information amount is small, but is quickly avoided. It is necessary to take action, that is, "information necessary for driving" with high urgency, and "information leading to comfort and convenience" with a large amount of information but low urgency. it can.

[0010] If such two types of information are displayed on separate display devices, it is considered that the driver can surely recognize the respective information. However, when two types of display devices are provided in this way, simply arranging the two display devices side by side may cause confusion when the driver recognizes information by looking at the display device, It becomes a problem where to arrange each. Therefore, of the two display devices, a display device that displays information necessary for driving is arranged at a position with better visibility so that the driver can quickly and reliably recognize the information. The present invention has been completed by paying attention to the fact that it is desirable to

Specifically, the present invention provides first display means for displaying information requested by a driver, and information to be shown to the driver at a specific timing or in a predetermined emergency irrespective of the driver's request. And a second display means for displaying, wherein the first and second display means are arranged at a position outside the steering wheel as viewed from the driver, and
It is a specific matter that the second display means is disposed at a position with better visibility than the first display means.
In this case, by displaying the two types of information on separate display devices, the driver can surely recognize the information. Moreover, the second display means for displaying information to be presented to the driver at a specific timing or in a predetermined emergency is arranged at a position with better visibility than the first display means, so that the driver can , It is possible to reliably recognize information that needs to be acted on more quickly.

The above-mentioned "position outside the steering wheel" may be arranged at a position inside the steering wheel in the vehicle width direction. Further, the “position with good visibility” in which the second display device is provided includes a line connecting the position of the driver's eyes and a point set when the vehicle traveling straight ahead arrives after a predetermined time. A point of intersection with a reference plane extending in the vertical direction from the cowl of the vehicle as a forward gazing point, a second display device, a second projection position of projecting the second display device perpendicular to the reference plane, and the forward gazing point; If the distance between them is shorter than the distance between the first projection position where the first display device is projected perpendicularly on the reference plane and the forward fixation point, the second
The display device is arranged at a position with good visibility.
That is, by arranging the second display device at a position closer to the front gazing point than the first display device, the amount of movement of the line of sight when viewing the second display device is different from that when the first display device is viewed. Is smaller than the amount of movement of the line of sight. As a result, the second
The display device has better visibility than the first display device. Here, the "point set when the vehicle traveling straight ahead arrives after the predetermined time" is a point in front of the traveling road where it is generally set that the driver is gazing during straight traveling. Specifically, it is a point at which the traveling vehicle reaches 2 seconds later at the traveling vehicle speed.

Further, the second display means may be provided at a position on the front side in the vehicle front-rear direction with respect to the first display means. In this case, the vertical display angle, which is the vertical angle of a line connecting the display devices from the driver's viewpoint, is smaller in the second display device than in the first display device. For this reason, the amount of movement of the driver's line of sight in the vertical direction is reduced, and the visibility of the second display device is further improved.

The information to be displayed by the first display means is road map information which is a large amount of information and has relatively low urgency, while the information to be displayed by the second display means is information It is sufficient to display the route guidance information, the emergency road traffic information, and the obstacle contact warning, which are small and highly urgent information.

The first and second display devices are disposed at a position in the center of the vehicle in the vehicle width direction, and the second display device is disposed at a position lower than the first display device. What is necessary is just to arrange | position at the driver's side position of a vehicle width direction and diagonally above this 1st display apparatus. In this case, the second display device is arranged at a position closer to the forward fixation point than the first display device, and the driver can more quickly and accurately display the information displayed on the second display device. It becomes possible to recognize. In addition, since the type of information displayed on the first display device and the type of information displayed on the second display device are different, it is possible to reliably recognize the above two types of information without confusion for the driver. become.

[0016]

As described above, according to the display device for a vehicle of the present invention, in a display device on which a plurality of pieces of information are displayed, the driver can quickly and reliably recognize each piece of information. become.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 or FIG. 2 shows an instrument panel 1 provided with a display device according to an embodiment of the present invention. The instrument panel 1 has an entertainment display 11 as first display means.
And a driving display 1 as a second display means
3 are provided.

The above entertainment display 11
Is disposed substantially at the center of the instrument panel 1 in the vertical direction and at the center of the vehicle in the vehicle width direction.

The driving display 13 is located above the instrument panel 1 and substantially near the center of the vehicle in the vehicle width direction.
It is arranged at a position near the driver's seat inside.
For this reason, the driving display 13 is located at a position closer to the driver than the entertainment display 11 and is disposed obliquely above the entertainment display 11. As shown in FIG. 3, the meter unit 12 includes an indicator light such as a speedometer, a fuel gauge, a water temperature gauge, an odometer, a trip meter, a selector indicator light and a turn signal indicator light, and an alternator toning light and an oil pressure. Various warning lights such as a warning light are provided.

As shown in FIG. 2, the driving display 12 is disposed at a front position of the instrument panel 1 in the front-rear direction of the vehicle, while the entertainment display 11 is mounted on the vehicle more than the driving display 13. It is arranged at the rear side position in the front-back direction. Therefore, the vertical viewing angle of the entertainment display 11, that is, the vertical angle of the line connecting the entertainment display 11 and the driver's viewpoint is set to approximately 22 degrees, and the vertical viewing angle of the driving display 13 is set to approximately 11 degrees. Is set. Therefore, the driving display 1
3. Visibility is better than that of the entertainment display 11.

The entertainment display 11 displays, for example, parking lot information as shown in FIG. 1, while the driving display 13 displays, for example, route guidance information. It has become.

The arrangement positions of the entertainment display 11 and the driving display 13 can be defined as follows.

That is, as shown in FIG. 4, a point P 'at which the driver 31 is gazing at the vehicle 3 traveling straight ahead at the vehicle speed V is considered to be a point reached two seconds after traveling at the vehicle speed V. Have been. Therefore, an intersection point between a line connecting the point P ′ and the position of the eyes of the driver 31 and a reference plane S extending in the up-down direction at the cowl position of the vehicle 3 is set as the forward fixation point P. The distance between the driving display projection position at which the driving display 13 is projected perpendicularly to the reference plane S and the forward fixation point P is determined by the entertainment at which the entertainment display 11 is projected perpendicularly to the reference plane S. It is disposed so as to be shorter than the distance between the display projection position and the forward fixation point P (see point P in FIG. 1 or 2).

As described above, when both the entertainment display 11 and the driving display 13 look at the entertainment display 11 and the driving display 13 from a state in which the driver gazes while driving, the amount of movement of the line of sight is small. It is arranged at a position where visibility is good. Such an arrangement position of the display device is derived from the result of the visibility evaluation experiment. Next, the visibility evaluation experiment of the display device will be described.

This evaluation experiment is a simulation experiment. As shown in FIG. 5, an actual vehicle is used as the simulator cabin 4, and a monitor 41 is provided at a position in front of the vehicle 4. On the monitor 41, the road and the scenery that are visible ahead while the vehicle is running are changed and projected according to the running of the vehicle. The subject 46 in the simulator cabin 4 operates the steering wheel 45, the accelerator 43, and the brake while watching the image, thereby virtually traveling on the road course in the image.

In the simulator cabin 4, a display device 48 to be evaluated for visibility and an operation switch 44 operated by the subject 46 in accordance with the display contents of the display device 48 are provided. I have. In addition, a video camera 42 is provided at an upper position of the monitor 41, and the video camera 42 captures the face of the subject 46.

The steering 45, the accelerator 43, and the operation switch 44 are respectively connected to the simulator host PC4.
7 and each is connected to subject 4
6 operates, the signal is transmitted to the simulator host P
The data is output to C47. The simulator host PC 47 controls an image displayed on the monitor 41 in accordance with the steering angle of the steering 45, the amount of depression of the accelerator 43, and the like.

In this visibility evaluation experiment, as shown in FIG. 6 or FIG. 7, the display devices are arranged at five positions A to E, and the visibility of the display device 48 at each of the arrangement positions is determined. Was evaluated.

As a method of the experiment, a virtual road course as shown in FIG. 8 was run at a predetermined speed, and a display device was set at a predetermined position of the virtual road course (see white circles e1 to e9 in FIG. 8). 48 is displayed. This display content is called, for example, a route selection as shown in FIG. 9. In the route selection, a plurality of routes are displayed, and when each route is selected, the time required to reach the destination is displayed. Is displayed. Then, the subject is asked to select a route that can reach the destination in the shortest time. For example, in the figure, selecting "c" is the correct answer. Then, the display device 48 is provided to the subject 46.
The operator is asked to press the operation switch 44 when the answer is understood by looking at the display contents of the above. When the operation switch 44 is pressed, the display on the display device 48 disappears. Then, the subject 46 is asked to verbally answer the display content. In such an experiment, the display devices arranged at the respective positions are made to travel on the course. For this reason, the display device arranged at each position is displayed nine times so that data is detected.

The data measured for the evaluation includes the viewing time as the time for viewing the display device 48, the number of times of viewing as the number of times the display device 48 was viewed, and the visibility of the correct answer rate for the display content of the subject 46. This is related to the safety of vehicle wobble described later.

The visual recognition time is detected by measuring the time from when the display is displayed on the display device 48 to when the operation switch 44 is pressed, and the number of times of visual recognition is determined by reading the movement of the subject 46 from the video camera image. . The correct answer rate is detected based on whether or not the route selected by the subject 46 is correct.

FIG. 10 shows an example of data obtained in the above-described evaluation experiment. In FIG. 10, the horizontal axis indicates time. The top line indicates the trajectory of travel (the trajectory of the center of the vehicle), the second line from the top indicates a change in the steering angle, and the third line from the top indicates the visual recognition time ΔT. The bottom line indicates a wobble flag that is set when the vehicle wanders.

The wobble of the vehicle is determined based on the position of the vehicle immediately after being displayed on the display device 48. If the vehicle moves a predetermined amount to the left or right beyond the reference position, it is determined that the vehicle has wandered. The judgment is made.

Next, the determination of the fluctuation will be described with reference to FIG.
This will be described according to the flowchart shown in FIG.

First, in step S11, the travel position S of the vehicle is read. Then, step S1
In 2, it is determined whether or not the display is displayed on the display device 48. If it is displayed, step S
The process proceeds to step S18, and if not, the process proceeds to step S18.

In step S13,
It is determined whether the counter Q is 1 or not.
This counter Q is for determining whether or not the reference position of the vehicle has been set. On the other hand, step S18
In step S11, the counter Q is set to 0
Return to.

In step S13, the counter Q
Is not 1 (if 0), the process proceeds to step S14.

In step S14, the reference position is set as S, and the threshold value for the wander determination,
And Slow are set. The threshold value may be set to, for example, ± 0.4 (m) with respect to the reference position.

In step S15, the counter Q is set to 1, that is, the reference position of the vehicle is set, and the process returns to step S11.

On the other hand, if the counter Q is 1 in step S13, the process proceeds to step S16 to determine whether or not the traveling position S of the vehicle is within the range using the previously set High and Slow. To If it exceeds the range, the process proceeds to step S17, where the wobble flag is turned on to return to step S11. On the other hand, if it is within the range, the process returns to step S11.

FIG. 12 shows an example of data obtained when the vehicle travels once on the virtual road course, and a total of nine displays are performed.

The thus obtained data such as the number of times of visual recognition and the visual recognition time were processed and evaluated in the following manner.

That is, the number of times of viewing and the viewing time vary greatly from person to person. That is, there are persons who tend to look at a large number of display devices and people who tend to keep looking at a display device for a relatively long time. Are different,
Simply calculating the average value of all members and using the average value may not provide accurate evaluation. Therefore, the display device of each arrangement with respect to the reference arrangement position calculates a performance ratio indicating how much the performance has improved for each individual, and calculates the average of all the subjects using the performance ratio of each individual, The visibility was evaluated. The evaluation results are shown in Table 1 and FIG.

[0045]

[Table 1]

Table 1 and FIG. 13 show that the performance is high (the visibility is good) if the value of the performance ratio is small, and the performance is low (the visibility is bad) if the value of the performance ratio is large. Has become. From FIG. 13, it has been found that the arrangement C has the best visibility, and the arrangement B has the best visibility. From this result, it was derived that it is desirable to arrange the entertainment display 11 at the position of the arrangement B and the driving display 13 at the position of the arrangement C.

Here, the driving display 1
If 3 is disposed closer to the driver, the amount of movement of the line of sight is reduced, so that the visibility is further improved. Therefore, as shown in FIG.
The upper part and the lower part are formed in a horizontally long elliptical shape, each of which is contracted in the vertical direction by the same amount (ΔU = ΔL), so that, as shown in FIG. The driving display 13 can be disposed closer to the driver than a region (region indicated by a two-dot chain line in FIG. 1) separated by the diameter. Therefore, the driving display 13
Is smaller than that of the steering wheel 2 having a perfect circular shape.
The visibility can be further improved.

Next, the display control of the entertainment display 11 and the driving display 13 will be described.

FIG. 15 is a block diagram of a display device for a vehicle according to the present embodiment. The driving display 13 and the entertainment display 11 are both connected to an information / warning ECU 51.
1 controls the display.

A call center unit 53 is connected to the information / warning ECU 51, and an antenna receiver 55 is connected to the call center unit 53. The antenna receiver 55 receives a signal from a call center that transmits parking lot information, traffic accident information, and the like to the vehicle.

A driving assistance danger determining unit 54 is connected to the information / warning ECU 51. The driving assistance danger determining unit 54 includes a vehicle speed sensor 56 for detecting the vehicle speed of the own vehicle, A laser radar 57 that irradiates and detects an obstacle or the like and a steering angle sensor 58 that detects a steering angle are connected to each other.

Further, the information / warning ECU 51 includes:
The navigation device 52 and the speaker 14 are connected. The navigation device 52 is configured to not only indicate the current position of the own vehicle but also perform route guidance. Further, the speaker 14 is provided with the information
The alarm ECU 51 is configured to emit a warning sound under the control of the warning ECU 51 and to make a sound at the same time as being displayed on the entertainment display 11 and the driving display 13.

Next, the processing in the navigation device 52, the call center unit 53, and the driving support danger determining unit 54 will be described with reference to the flowcharts shown in FIGS.

First, FIG.
9 shows a flowchart of the route guidance process in step S41. In step S41, the current position of the vehicle is displayed. Next, in step S42, it is determined whether or not the route guidance by the navigation device 52 is turned on. If it is on, the process proceeds to step S43. If it is off, the route guidance flag is turned off (step S45), and the process returns to step S41.

In step S43, it is determined whether or not the current position of the vehicle is within a route display area, for example, within a circle having a radius of a predetermined distance around an intersection where a route needs to be displayed. If it is within the area, the process proceeds to step S44. If it is not within the area, the route guidance flag is turned off (step S45), and the process returns to step S41.

In step S44, the display flag is turned on, and the process returns to step S43.

FIG. 17 shows a flowchart of the processing in the call center unit 53. First, in step S51, it is determined whether or not information has been received from the infrastructure equipment, that is, from the call center. If it has been received, the process proceeds to step S52, and the information display flag is turned on. On the other hand, if not received, the process proceeds to step S53, and the information display flag is turned off.

FIG. 18 shows a flowchart of the processing in the driving assistance danger determining unit 54. First, in step S61, the own vehicle speed by the vehicle speed sensor 56, the forward object by the radar radar 57, and the steering angle by the steering angle sensor 58 are determined. Then, in step S62, danger judgment is performed based on the above detection result. Then, in step S63, it is determined whether or not it is necessary to issue a warning based on the danger determination. If it is determined that a warning needs to be issued, the process proceeds to step S65, where the warning flag is turned on, but no warning is required. If the determination is made, the process proceeds to step S64 to turn off the alarm flag.

Next, the processing in the information / warning ECU 51 will be described with reference to the flowchart shown in FIG.

First, in step S21, it is determined whether or not the route guidance flag is turned on in the navigation device 52. If the flag is turned on, the process proceeds to step S24 to select an information / warning file.
After generating the flags (S, D, E), the process proceeds to step S22. On the other hand, if it is off, the process proceeds to step S22.

In step S22, it is determined whether or not the information display flag is turned on in the call center unit 53. If it is turned on, the process proceeds to step S25, where an information / warning file is selected and flags (S, D, E) are generated.
Go to 3. On the other hand, if it is off, the process proceeds to step S23.

In step S23, the driving support danger determining unit 54 determines whether the warning flag is turned on. If the warning flag is turned on, the process proceeds to step S26 to select an information / warning file. After generating the flags (S, D, E), the process proceeds to step S27. On the other hand, if it is off, step S
Go to 27.

Here, the above-mentioned steps S24 to S
The processing in 26 is performed by setting information in each flag in advance.
This is a process of selecting which one of the alarm files corresponds, and generating each of the flags S, D, and E based on the selection.
The flag S is a flag for causing the speaker 14 to output sound and voice, and the flag D is a flag for the driving display 13.
And the flag E is a flag to be displayed on the entertainment display 11. In addition, the preset information / warning file refers to an information / warning file in which, when two pieces of information need to be displayed at the same time at the same time, a priority is set to which one is displayed preferentially. The priority is set such that the shorter the time required to reach an unstable state, that is, the shorter the time required to take an avoidance action or the like, is given priority. For example, about 10 seconds in the route guidance information, 6 seconds in the emergency road traffic information, and 3 seconds in the obstacle contact warning are considered to be the times to reach the unstable state.

In step S27, it is determined whether or not each of the route guidance flag, the information display flag, and the warning flag is off. If the flag is off, the display on the driving display 13 is erased. (Step S28), the process returns to step S21. Therefore, when there is no information to be displayed on the driving display 13, the driving display 13 is in an off state (blackout). Thus, unlike the case where the display is always displayed on the driving display 13, the driver can drive without being distracted. Since the user becomes aware of the information, the information can be promptly and reliably recognized.

On the other hand, if the flags are not turned off, the process proceeds to step S29.

In step S29, the priority order is determined based on the flags generated in steps S24 to S26. Here, the audio flag Sn has the highest priority, followed by the driving display flag Dn and the entertainment display flag En. Also, the value of n is set so that a smaller one has priority. If the priority flag is Sn, the process proceeds to step S30,
In the case of Dn, the process proceeds to step S31, and in the case of En, the process proceeds to step S32.

In step S30, it is determined whether or not the audio output is being output. If the audio output is being performed, the process proceeds to step S33. If the audio output is not being output, the process proceeds to step S35, and the sound is output. -Make sound output. On the other hand, in step S33, it is determined whether or not the priority of the flag is lower than the priority of the flag of the information currently being output. If it is lower, the audio information currently being output is continued as it is (step S35). On the other hand, if the priority is higher, the currently output audio information is interrupted (step S34), and the audio information having the higher priority is output (step S35). Then, step S21
Return to.

On the other hand, in step S31, it is determined whether or not the driving display 13 is outputting, and if it is outputting, the process proceeds to step S36.
On the other hand, if the output is not being performed, the process proceeds to step S38, and the display output of the driving display 13 is performed. On the other hand, in step S36, similarly to step S33, it is determined whether or not the priority of the flag is lower than the priority of the flag of the information currently being output. If the audio information is lower, the audio information currently being output is continued as it is (step S3).
8). On the other hand, if it is a higher rank, an interrupt is made to the driving display information currently being output (step S
37), the driving display information having the higher priority is output (step S38). Examples of display contents displayed on the driving display 13 include, for example, route guidance information as shown in FIG. 20A, an obstacle contact alarm as shown in FIG. As shown in (c), emergency road traffic information is given. In this case, the priority order is an obstacle contact warning, emergency road traffic information, and route guidance information.

On the other hand, in step S32, display output of the entertainment display 11 is performed. An example of display contents displayed on the entertainment display 11 includes parking lot information, and such parking lot information is shown in FIGS. 21 (a) to 21 (c).
As shown in FIG. 3, one set of three pages has a large amount of information.

Next, the operation and effect of the above embodiment will be described.

The above-mentioned driving display 1 is provided with two display devices, an entertainment display 11 and a driving display 13.
While the information amount is small, the route guidance information, the emergency road traffic information, and the obstacle contact information, which are "information necessary for driving", which are urgent but need to take an immediate avoidance action, are displayed. Since the entertainment display 11 displays the parking lot information which is "information leading to comfort and convenience" although the amount of information is large, the driver is able to surely recognize each information. become. In addition, the driving display 13 is used for the entertainment display 11.
By arranging the driver at a position with better visibility than that of the driver, the driver can surely recognize information that needs to be recognized more quickly.

<Other Embodiments> The present invention is not limited to the above-described embodiments, but includes various other embodiments. That is, in the above embodiment,
As the steering wheel, a horizontally long elliptical one as shown in FIG. 14 is used. However, the present invention is not limited to this. For example, a steering wheel having a shape shown in the following “Part 1” to “Part 3” is used. Is also good. Even with such a steering wheel, when the steering wheel is in the normal position, the driving display 13 is arranged closer to the driver than a region separated by the diameter in the case of a perfect circular steering wheel. And the visibility of the driving display 13 can be further improved.

(Part 1) In the steering wheel according to “Part 1”, as shown in FIG. 22A, the upper part of the steering wheel 21 is reduced by ΔU, while the lower part is smaller than the upper part. The contraction amount is reduced (ΔU> ΔL). Further, as shown in FIG. 2B, the steering wheel 22 may be configured such that only the upper part is contracted (ΔL = 0).

(Part 2) As shown in FIG. 23A, the steering wheel according to Part 2 has a shape in which the upper and lower portions of the steering wheel 23 are cut (ΔU = ΔL). Further, as shown in FIG. 2B, the steering wheel 24 is designed such that the cut amount of the lower part is smaller than the cut amount of the upper part.
(ΔU> ΔL). Further, as shown in FIG. 4C, a steering wheel 25 that cuts only the upper part may be used (Δ
L = 0).

(Part 3) As shown in FIG. 24, the steering wheel according to Part 3 has a shape in which the left and right portions of the steering wheel 26 are reduced (Δl = Δr). Even in this case, when the steering wheel 26 is in the normal position, in the case of a perfect circular steering wheel, the steering wheel 26 is located closer to the driver than a region separated by the diameter (see the two-dot chain line in the figure). The driving display 13 can be provided.

[Brief description of the drawings]

FIG. 1 is a front view showing an instrument panel provided with a display device according to an embodiment of the present invention.

FIG. 2 is an explanatory sectional view showing an AA section in FIG. 1;

FIG. 3 is an enlarged view showing a meter unit.

FIG. 4 is an explanatory diagram showing a definition of a forward fixation point.

FIG. 5 is an explanatory diagram illustrating a configuration of a device used for a visibility evaluation experiment of a display device.

FIG. 6 is an explanatory diagram showing an arrangement of the display device on which a visibility evaluation experiment of the display device was performed.

FIG. 7 is an explanatory cross-sectional view showing a BB cross section of FIG. 6;

FIG. 8 is an explanatory diagram showing virtual road courses and display points for performing a visibility evaluation experiment of the display device.

FIG. 9 is a diagram illustrating an example of route selection information displayed on a display device in a visibility evaluation experiment of the display device.

FIG. 10 is an explanatory diagram showing an example of detection data in a visibility evaluation experiment of a display device.

FIG. 11 is a flowchart for determining a wobble of a vehicle in a visibility evaluation experiment of a display device.

FIG. 12 is an explanatory diagram showing an example of detection data when the vehicle travels once on a virtual road course in a visibility evaluation experiment of the display device.

FIG. 13 is an explanatory diagram illustrating evaluation results in a visibility evaluation experiment of the display device.

FIG. 14 is a front view showing a steering wheel.

FIG. 15 is a block diagram showing a configuration of a display device of the vehicle.

FIG. 16 is a flowchart showing a route guidance process in the navigation device.

FIG. 17 is a flowchart showing processing in the call center unit.

FIG. 18 is a flowchart showing a process in a driving support danger determining unit.

FIG. 19 is a flowchart showing processing in an information / warning ECU.

FIG. 20 is an explanatory diagram showing an example of display contents displayed on a driving display.

FIG. 21 is an explanatory diagram showing an example of display contents displayed on the entertainment display.

FIG. 22 is a view corresponding to FIG. 14 showing a steering wheel according to another embodiment.

FIG. 23 is a view corresponding to FIG. 14, showing a steering wheel according to another embodiment different from FIG. 22;

FIG. 24 is a view corresponding to FIG. 14, showing a steering wheel according to another embodiment different from FIGS. 22 and 23;

FIG. 25 is an explanatory diagram in which information displayed on the display device is classified by plotting the amount of information and the urgency.

[Explanation of symbols]

2, 21 to 26 Steering wheel 11 Entertainment display (first display means) 13 Driving display (second display means) P Forward fixation point

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Koji Kido, Inventor 3-1 Shinchi, Fuchu-cho, Aki-gun, Hiroshima Mazda Co., Ltd. (72) Yuko Arao 3-1, Shinchi, Fuchu-cho, Aki-gun, Hiroshima Mazda Co., Ltd. F term (reference) 3D044 BA21 BA26 BA30 BB01 BC28 BD02 5H180 AA01 CC03 CC04 CC14 EE02 FF22 FF32 FF39 LL01 LL07 LL08

Claims (6)

[Claims] 1. First display means for displaying information requested by a driver, and second display means for displaying information to be shown to the driver at a specific timing or in a predetermined emergency regardless of the request of the driver. Wherein the first and second display means are disposed at a position outside the steering wheel as viewed from the driver, and the second display means is more visible than the first display means. A display device for a vehicle, wherein the display device is provided in a good position. 2. The display device for a vehicle according to claim 1, wherein the first and second display means are disposed at a position inward of the steering wheel in the vehicle width direction. 3. The vehicle according to claim 1, wherein a line connecting the position of the driver's eye and a point set when the vehicle traveling straight ahead arrives after a predetermined time, and a vertical direction from the cowl of the vehicle. The intersection point with the expanding reference plane is defined as the forward gazing point, and the second display device is configured such that a distance between a second projection position of projecting the second display device perpendicularly to the reference plane and the forward gazing point is the first display. A display device for a vehicle, wherein the display device is disposed so as to be shorter than a distance between a first projection position where the device is vertically projected on the reference plane and the forward fixation point. 4. The display device for a vehicle according to claim 1, wherein the second display means is disposed at a position on the front side in the vehicle front-rear direction with respect to the first display means. . 5. The display device according to claim 1, wherein the first display means is configured to display road map information, and the second display means is configured to display route guidance information, emergency road traffic information,
And a display device for displaying an obstacle contact alarm. 6. The display device according to claim 1, wherein the first display device is disposed at a position in the center of the vehicle in the vehicle width direction, and the second display device is located at a driver side position in the vehicle width direction relative to the first display device. A display device for a vehicle, wherein the display device is disposed diagonally above the first display device.