阅读说明：本技术 车载驾驶辅助装置 (Vehicle-mounted driving assistance device ) 是由 永井孝明 忍田圭 于 2019-03-29 设计创作，主要内容包括：本发明提供一种车载驾驶辅助装置。显示机构显示左后方的区域和右后方的区域,在车辆中配置有仪表盘,所述仪表盘被配置在仪表板中的后视观察时与方向盘重叠的位置,并且至少显示所述车辆的状态,并且,在所述仪表板中的位于所述方向盘外侧的位置配置有显示部,所述左后方的区域和所述右后方的区域中的一方被显示在所述显示部,另一方被显示在所述仪表盘内。据此,能减小用于确认后续车辆的扭头角度,从而使驾驶员能轻松进行后续车辆的确认。(The invention provides a vehicle-mounted driving assistance device. The display means displays a left rear area and a right rear area, an instrument panel is disposed in the vehicle, the instrument panel is disposed at a position overlapping a steering wheel in a rear view of an instrument panel and displays at least a state of the vehicle, a display portion is disposed at a position located outside the steering wheel in the instrument panel, one of the left rear area and the right rear area is displayed on the display portion, and the other is displayed in the instrument panel. Accordingly, the twist angle for confirming the following vehicle can be reduced, so that the driver can easily confirm the following vehicle.)

1. A vehicle-mounted driving assistance device is characterized in that,

comprises a shooting mechanism, a display mechanism and a control mechanism, wherein,

the shooting mechanism is used for shooting the left rear area and the right rear area of the vehicle;

the display mechanism is used for displaying the shooting result of the shooting mechanism as an image;

the control mechanism is used for driving and controlling the display mechanism,

the display mechanism displays the area of the left rear and the area of the right rear,

an instrument panel is disposed in the vehicle at a position overlapping with a steering wheel in a rear view in the instrument panel and displays at least a state of the vehicle,

a display unit is disposed on the instrument panel at a position outside the steering wheel,

one of the left rear area and the right rear area is displayed on the display unit, and the other of the left rear area and the right rear area is displayed in the instrument panel.

2. The vehicle-mounted driving assist apparatus according to claim 1,

the other side is displayed at a position offset from the center of the instrument panel.

3. The vehicle-mounted driving assist apparatus according to claim 2,

a speedometer is arranged at a position of the instrument panel deviated from the center to one side, a tachometer is arranged at a position of the instrument panel deviated from the center to the other side,

the other party is displayed instead in the tachometer.

4. The vehicle-mounted driving assist apparatus according to claim 3,

the other party is displayed in such a way that its outline matches the outline of the tachometer.

5. The vehicle-mounted driving assist apparatus according to claim 2,

if the other party is the region of the right rear side as viewed by the driver, the other party is displayed at a position shifted to the right side from the center of the instrument panel,

if the other party is the region of the left rear side as viewed by the driver, the other party is displayed at a position shifted to the left side from the center of the instrument panel.

6. The vehicle-mounted driving assistance apparatus according to any one of claims 1 to 5,

the display portion is located on the left side of the driver,

if the other party is in the area of the right rear side when viewed by the driver, the one party is displayed in the instrument panel and the other party is displayed on the display unit.

7. The vehicle-mounted driving assistance apparatus according to any one of claims 1 to 5,

the display portion is located on the right side as viewed by the driver,

if the one side is an area on the right rear side as viewed by the driver, the one side is displayed on the display unit, and the other side is displayed in the instrument panel.

8. The vehicle-mounted driving assistance apparatus according to any one of claims 1 to 5,

the display portion is located on the left side as viewed by the driver,

if the one side is an area on the right rear side as viewed by the driver, the one side is displayed in the instrument panel, and the other side is displayed on the display unit.

9. The vehicle-mounted driving assistance apparatus according to any one of claims 1 to 8,

and a peripheral monitoring means is provided for monitoring the periphery of the object,

the detection result of the periphery monitoring means is output to the display means through CAN communication,

the display mechanism displays the detection result in a symbol mode.

10. The vehicle-mounted driving assistance apparatus according to any one of claims 1 to 8,

further comprises a periphery monitoring means and a sound output means,

the detection result of the periphery monitoring means is output to the sound output means through CAN communication,

the sound output mechanism outputs the detection result in a sound mode.

Technical Field

The present invention relates to a vehicle-mounted driving assistance device.

Background

Japanese patent application laid-open No. 2017-177961 aims to provide a display system for a vehicle capable of displaying outside information and the like on an instrument panel (instrument panel) with good visual confirmation.

In order to solve this problem, japanese patent laid-open publication No. 2017-177961 discloses an instrument panel of a vehicle that is configured by an instrument panel display (instrument panel display) capable of displaying an image. In addition, a navigation display, a rearview mirror display, a right rearview mirror display, and a left rearview mirror display capable of displaying images are provided in addition to the instrument panel display. When the shift range is switched to the R range, the rear view image is displayed on the instrument panel display, and the instrument function information that should be displayed on the instrument panel is displayed on one of the navigation display, the rearview mirror display, the right rearview mirror display, or the left rearview mirror display.

Disclosure of Invention

When a lane change is made on a road having 2 or more lanes in one direction, the driver confirms the presence or absence of a subsequent vehicle. Normally, as shown in fig. 12, the presence or absence of a following vehicle is confirmed by observing the background reflected on the left and right mirrors and, if necessary, by twisting the head to visually recognize the vehicle traveling in a region where no mirror is reflected, for example, in a side region or via an adjacent lane. In this case, the driver needs to frequently confirm the left and right rearview mirrors and the side, and therefore the twisting angle θ becomes large regardless of the situation, which causes a problem that the confirmation work becomes complicated.

Therefore, in recent years, the presence or absence of a following vehicle on the front passenger seat side or a side vehicle (for example, blind spot recognition) is confirmed by, for example, projecting a peripheral image captured by a camera provided on a rear view mirror on the front passenger seat side on a display provided at the center of an instrument panel. In this case, the twist angle is reduced to some extent, but it is still obtuse, and therefore the complexity of the confirmation work is not greatly reduced.

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an in-vehicle driving support device that enables a driver to easily confirm a following vehicle by reducing a twist angle, which is an angle at which the driver twists to confirm the following vehicle.

The invention provides a vehicle-mounted driving assistance device, which is provided with a shooting mechanism, a display mechanism and a control mechanism, wherein the shooting mechanism is used for shooting the left rear area and the right rear area of a vehicle; the display mechanism is used for displaying the shooting result of the shooting mechanism as an image; the control means is configured to drive and control the display means, the display means displaying the left rear region and the right rear region, a meter panel (meter panel) is disposed in the vehicle, the meter panel being disposed at a position overlapping a steering wheel in a rear view of an instrument panel and displaying at least a state of the vehicle, a display portion is disposed at a position outside the steering wheel in the instrument panel, one of the left rear region and the right rear region is displayed on the display portion, and the other of the left rear region and the right rear region is displayed in the instrument panel.

In this aspect, the other is displayed at a position offset from the center of the instrument panel.

In this aspect, a speedometer is disposed at a position of the instrument panel that is offset to one side from the center, a tachometer is disposed at a position of the instrument panel that is offset to the other side from the center, and the other is displayed in place of the tachometer.

In this aspect, the other side is displayed so that the contour thereof matches the contour of the tachometer.

In this aspect, if the other side is the region on the right rear side as viewed by the driver, the other side is displayed at a position offset to the right side from the center of the instrument panel, and if the other side is the region on the left rear side as viewed by the driver, the other side is displayed at a position offset to the left side from the center of the instrument panel.

In this aspect, the display portion is located on the left side of the driver, and if the other side is in the area on the rear right side as viewed by the driver, the one side is displayed in the instrument panel, and the other side is displayed on the display portion.

In this aspect, the display unit is located on the right side as viewed by the driver, and if the one side is in the area behind the right side as viewed by the driver, the one side is displayed on the display unit, and the other side is displayed in the instrument panel.

In this aspect, the display unit is located on the left side as viewed by the driver, and if the one side is in the region on the right rear side as viewed by the driver, the one side is displayed in the instrument panel, and the other side is displayed on the display unit.

In this embodiment, at least the signal from the imaging means to the display means is exchanged by CAN communication.

In this aspect, the system further includes a periphery monitoring means for outputting a detection result of the periphery monitoring means to the display means through the CAN communication, and the display means displays the detection result in a symbolic form.

In this aspect, the vehicle further includes a periphery monitoring means for outputting a detection result of the periphery monitoring means to the sound output means through the CAN communication, and a sound output means for outputting the detection result as sound.

According to the mode of the invention, the head twisting angle for confirming the follow-up vehicle can be reduced, so that the driver can easily confirm the follow-up vehicle.

Drawings

Fig. 1A is a diagram showing a normal display mode of the 1 st in-vehicle driving assistance device, and fig. 1B is a diagram showing a characteristic display mode of the 1 st in-vehicle driving assistance device.

Fig. 2A is a diagram showing a normal display mode of the instrument panel, and fig. 2B is a diagram showing a display mode of a captured image of the left rear side of the vehicle fitted in the tachometer.

Fig. 3 is a block diagram showing the structure of the instrument panel of the 1 st in-vehicle driving assistance apparatus.

Fig. 4 is a block diagram showing the configuration of the display of the 1 st in-vehicle driving assistance apparatus.

Fig. 5 is a flowchart showing a processing operation of the first in-vehicle driving assistance apparatus 1.

Fig. 6A is a diagram showing a normal display mode of the 2 nd in-vehicle driving assistance device, and fig. 6B is a diagram showing a characteristic display mode of the 2 nd in-vehicle driving assistance device.

Fig. 7A is a diagram showing a normal display form of the dashboard, and fig. 7B is a diagram showing a display form of a photographed image embedded in the left rear of the vehicle on the tachometer, and further showing a symbol image of the indicator of the BSI.

Fig. 8 is a block diagram showing the structure of the instrument panel of the 2 nd in-vehicle driving assistance apparatus.

Fig. 9 is a block diagram showing the configuration of the display of the 2 nd in-vehicle driving assistance apparatus.

Fig. 10 is (one of) a flowchart showing a processing operation of the 2 nd in-vehicle driving support device.

Fig. 11 is a flowchart (two) showing a processing operation of the 2 nd in-vehicle driving support device.

Fig. 12 is an explanatory diagram for explaining a problem point of a vehicle of the related art.

Detailed Description

Next, an example of an embodiment of the in-vehicle driving assistance device according to the present invention will be described with reference to fig. 1A to 11.

First, an in-vehicle driving assistance device according to embodiment 1 (hereinafter referred to as "1 st driving assistance device 10A") will be described with reference to fig. 1A to 5.

As shown in fig. 1A, the vehicle 12 mounted with the 1 st driving assistance device 10A (see fig. 3) has a left side mirror 14L and a right side mirror 14R. An instrument panel 16 is provided in the vehicle 12. The instrument panel 20 is disposed at a position of the instrument panel 16 that overlaps the steering wheel 18 in a rear view, and the instrument panel 20 displays at least a state of the vehicle 12. Further, a display 22 (e.g., a navigation panel, an audio panel, etc.) is disposed at a portion of the instrument panel 16 located outside the steering wheel 18, for example, at a center portion of the instrument panel 16 in the vehicle width direction. The steering wheel 18 is composed of at least a substantially circular grip portion 18a, a rotatably supported shaft portion 18b, and bridge portions 18c, 18d connecting the grip portion 18a and the shaft portion 18b, and the bridge portions 18c, 18d extend in the left-right direction from the shaft portion 18 b.

As shown in fig. 1A, the 1 st driving assistance device 10A is applied to the vehicle 12 in which the driver seat 30 is located on the left side and the passenger seat 32 is located on the right side.

As shown in fig. 1A and 1B, the 1 st driving assistance device 10A includes: a left side camera 34L that is provided on the left side mirror 14L and that is used to photograph the left rear of the vehicle 12; and a right side camera 34R that is provided to the right side mirror 14R and that is used to photograph the right rear of the vehicle 12.

An instrument panel 16 is provided in the vehicle 12. The instrument panel 20 is provided in the instrument panel 16 at a position overlapping the steering wheel 18 in a rear view, and displays at least a state of the vehicle 12. Further, a display 22 (e.g., a navigation panel, an audio panel, etc.) is disposed at a central portion of the dash panel 16 in the vehicle width direction of the dash panel 16, which is located outside the steering wheel 18. A blind spot display system Switch (LaneWatch Switch)38 (see fig. 3) is attached to a tip end of a turn signal operation lever 36 (see fig. 3) provided near the steering wheel 18, for example.

As shown in fig. 3, the instrument panel 20 has a meter ECU40, a meter image memory 42, and a meter liquid crystal display panel 44.

The meter ECU40 includes the 1 st arithmetic unit 50A, the 1 st storage unit 52A, and the 1 st input/output unit 54A. The 1 st input/output unit 54A receives various signals from sensors and the like provided in the vehicle 12, and stores the signals in the 1 st storage unit 52A. The 1 st input/output unit 54A outputs the image data and the like generated by the 1 st arithmetic unit 50A to the external meter image memory 42 and the like.

The 1 st arithmetic unit 50A includes a 1 st normal image processing unit 60A, a 1 st embedded image processing unit 62A, and a 1 st display output unit 64A. The 1 st normal image processing section 60A, the 1 st embedded image processing section 62A, and the 1 st display output section 64A are realized by executing a program stored in the 1 st storage section 52A. The program may be supplied from an external device through a communication device not shown. It is also possible to constitute a part of the program by hardware (circuit parts).

In a normal case, that is, when the winker operation lever 36 is not operated and the blind spot display system switch 38 is not turned on, the 1 st normal image processing unit 60A is activated, and the 1 st normal image processing unit 60A draws, for example, an image in which various variable images are superimposed on a texture image of the instrument panel 20 in the meter image memory 42 through the 1 st input/output unit 54A at a time of NTSC standard. After that, the 1 st display output section 64A is activated.

Examples of the various variable images include images based ON a vehicle speed signal Sa from the vehicle speed sensor 70, an engine speed Ne from the engine speed sensor 72, an L/R turn signal Sb from the winker lever 36, an ON/OFF (ON/OFF) signal Sc from the blind spot display system switch 38 of the winker lever 36, a reverse signal Sd from the shift lever 74 or the reverse indication button 76, an illumination signal Se indicating turning ON/OFF of the lamp 78, and the like, that is, images indicating the rotation speed meter 80 (see fig. 2A), a vehicle speed meter 82 (see fig. 2A), a direction indication of L/R not shown, presence or absence of reverse, turning ON/OFF of the lamp, and the like.

The 1 st display output section 64A displays the image data Dg drawn in the meter image memory 42 on, for example, the meter liquid crystal display panel 44 of the instrument panel 20. Fig. 1A and 2A show a display mode of the instrument panel 20 in a normal state. In the example of fig. 1A, the driver's seat 30 is provided on the left side of the vehicle 12, the tachometer 80 is displayed on the left side of the instrument panel 20, and the speedometer 82 is displayed on the right side.

On the other hand, when the winker operation lever 36 is operated to the left or when the blind spot display system switch 38 is turned on, the 1 st embedded image processing unit 62A in fig. 3 is activated, and the 1 st embedded image processing unit 62A acquires the captured image GL from the left side camera 34L that captures the left rear side of the vehicle 12, for example, trims the captured image and embeds the trimmed captured image in the display area of the tachometer 80 in the meter image memory 42. After that, the 1 st display output section 64A is activated. Here, the trimming means cutting out a peripheral image of the captured image and matching the contour of the remaining captured image with the contour of the tachometer 80.

The 1 st display output unit 64A displays the image data drawn in the meter image memory 42 on the meter liquid crystal display panel 44. Fig. 1B and 2B show a display mode of the instrument panel 20 when the blind spot display is performed. Fig. 1B and 2B show an example in which the captured image GL from the left camera 34L is displayed in the region of the tachometer 80 on the left side of the instrument panel 20, and the speedometer 82 is displayed on the right side.

Next, as shown in fig. 4, the display 22 (see fig. 1A and 1B) provided at the center portion in the vehicle width direction of the instrument panel 16 includes a display ECU90, a display image memory 92, and a display liquid crystal display panel 94. The display ECU90 includes the 2 nd arithmetic unit 50B, the 2 nd storage unit 52B, and the 2 nd input/output unit 54B. The 2 nd input/output unit 54B inputs various signals from sensors and the like provided in the vehicle 12, and stores the signals in the 2 nd storage unit 52B. The 2 nd input/output unit 54B outputs the image data and the like generated by the 2 nd arithmetic unit 50B to the external display image memory 92 and the like.

The 2 nd arithmetic unit 50B includes a 2 nd normal image processing unit 60B, a 2 nd embedded image processing unit 62B, and a 2 nd display output unit 64B. The 2 nd normal image processing section 60B, the 2 nd embedded image processing section 62B, and the 2 nd display output section 64B are realized by executing a program stored in the 2 nd storage section 52B. The program may be supplied from an external device through a communication device not shown. It is also possible to constitute a part of the program by hardware (circuit parts).

In a normal state, that is, when the winker operation lever 36 is not operated and the blind spot display system switch 38 is not turned on, the 2 nd normal image processing unit 60B is activated, and the 2 nd normal image processing unit 60B causes the display liquid crystal display panel 94 to display a map image, a route image, and the like requested by the driver and the like.

The 2 nd embedded image processing portion 62B is activated when the winker operation lever 36 is operated to the right side or when the blind spot display system switch 38 is turned on, and the 2 nd embedded image processing portion 62B acquires a captured image GR from the right side camera 34R that captures the right rear side of the vehicle 12 and draws it in the display image memory 92. After that, the 2 nd display output section 64B is activated.

The 2 nd display output section 64B displays the image data drawn in the display image memory 92 on the display liquid crystal display panel 94. Fig. 1B shows a display mode of the display 22 when the blind spot display is performed. Fig. 1B shows an example in which a captured image from the right camera 34R is displayed on the display 22.

In this way, the 1 st driving assistance device 10A is configured to display the captured image from the left side camera 34L on the portion of the instrument panel 20 that displays the tachometer 80 and to display the captured image from the right side camera 34R on the display 22 provided at the center portion of the instrument panel 16 when the driver's seat 30 is provided on the left side of the vehicle 12, so that the twist angle for confirming the following vehicle can be reduced, and the driver can easily confirm the following vehicle.

Here, the processing operation of the 1 st driving assistance device 10A will be described with reference to fig. 5.

First, in step S1, the 1 st embedded image processing unit 62A determines whether or not the blind spot display system switch 38 is turned on.

When the blind spot display system switch 38 is turned on, the process proceeds to step S2, and the 1 st embedded image processing unit 62A acquires a captured image from the left side camera 34L that captures the left and rear sides of the vehicle 12, for example, trims the captured image and embeds the trimmed captured image in the rendering area of the tachometer 80 in the meter image memory 42.

In step S3, the 1 st display output unit 64A displays the image data drawn in the meter image memory 42 on the instrument panel 20. Accordingly, the captured image from the left camera 34L is displayed in the region of the left tachometer 80 of the instrument panel 20, and the speedometer 82 is displayed on the right side.

In step S4, the 2 nd embedded image processing section 62B acquires a captured image from the right side camera 34R that captures the right rear of the vehicle 12, and draws it in the display image memory 92. Thereafter, in step S5, the 2 nd display output unit 64B displays the image data drawn in the display image memory 92 on the display 22. Accordingly, the captured image from the right camera 34R is displayed on the display 22.

On the other hand, when it is determined in step S1 that the blind spot display system switch 38 is off, the process proceeds to step S6, and the 1 st embedded image processing unit 62A determines whether or not the winker operation lever 36 is operated to the left side. When the winker operation lever is operated to the left side, the process proceeds to step S7, and the 1 st embedded image processing unit 62A acquires a captured image from the left side camera 34L that captures the left rear side of the vehicle 12, for example, trims the captured image and embeds it in the display area of the tachometer 80 in the meter image memory 42.

In step S8, the 1 st display output unit 64A displays the image data drawn in the meter image memory 42 on the instrument panel 20. Accordingly, the captured image from the left camera 34L is displayed in the region of the left tachometer 80 of the instrument panel 20, and the speedometer 82 is displayed on the right side.

Thereafter, in step S9, the 2 nd normal image processing unit 60B displays the map image, the route image, and the like requested by the driver and the like on the display 22.

If it is determined in the above step S6 that the winker lever has not been operated to the left side, the process proceeds to step S10, and the 2 nd embedded image processing unit 62B determines whether or not the winker lever 36 has been operated to the right side. The process proceeds to step S11 when the winker operation lever 36 is operated to the right, and the 2 nd embedded image processing part 62B acquires a captured image from the right camera 34R that captures the right rear of the vehicle 12 and draws it in the display image memory 92.

Thereafter, in step S12, the 2 nd display output unit 64B displays the image data drawn in the display image memory 92 on the display 22. Accordingly, the captured image from the right camera 34R is displayed on the display 22.

Thereafter, in step S13, the 1 st normal image processing unit 60A displays the display mode of the instrument panel 20 in the normal state, that is, the tachometer 80 on the left side of the instrument panel 20 and the speedometer 82 on the right side.

When it is determined in step S10 that the winker operation lever has not been operated to the right, that is, when it is determined that the blind spot display system switch 38 is off and the winker operation lever 36 has not been operated, in step S14, the 1 st normal image processing unit 60A displays the tachometer 80 on the left side of the instrument panel 20 and the speedometer 82 on the right side. Next, in step S15, the 2 nd normal image processing unit 60B displays the map image, the route image, and the like requested by the driver and the like on the display 22.

Then, at the stage when the processing in step S5, the processing in step S9, the processing in step S13, or the processing in step S15 is ended, the process of shifting to step S1 is repeated after a predetermined time (for example, 1/(NTSC frame rate), or the like) has elapsed.

As described above, the bridge portions 18c, 18d of the steering wheel 18 extend in the left-right direction from the shaft portion 18 b. Further, the display unit (the tachometer 80, the speedometer 82) on the rear side of the display side in the instrument panel 20 as viewed from the rear or in the field of view of the driver is arranged laterally offset with respect to the shaft portion 18b of the steering wheel 18, and is arranged above the bridge portions 18c, 18 d.

According to this configuration, appropriate display can be performed also during traveling. That is, as shown in fig. 6A and 6B, for example, when the driver intends to change lanes to the left side, the driver requests the display of the left rear side by operating the turn signal operation lever 36 or pressing the blind spot display system switch 38. At this time, when the left rear side is displayed, the display is performed in the tachometer 80 on the left side in the instrument panel 20. Accordingly, even if the driver starts steering to the left side and starts turning the steering wheel 18 to the left side, the bridge portions 18c and 18d of the steering wheel 18 move from the right side to the center portion, and therefore, even if the steering wheel 18 overlapping the instrument panel 20 is disposed, it is not easy to overlap the display portion that displays the left rear side, and the driver can change lanes in a good field of view.

In particular, in most cases, a vehicle in which the steering wheel 18 is disposed on the left side of the vehicle body and the driver's seat is disposed on the left side is used in a country where right-hand traffic is regulated, in which two lanes are disposed in the traveling direction of the vehicle and a two-lane intersection is disposed in the opposite lane, the turning radius at the time of left-hand turning is larger than the turning radius at the time of right-hand turning, and as a result, the steering angle of the steering wheel 18 at the time of left-hand turning is smaller than the steering angle at the time of right-hand turning.

In this case, even if the left rear side portion is displayed in the left side region of the instrument panel 20 (in the tachometer 80 on the left side), the bridge portions 18c and 18d are less likely to overlap the left side region because the steering angle of the steering wheel 18 is small. On the other hand, in the case of a right turn in which the steering angle of the steering wheel 18 is large, the bridge portions 18c and 18d are likely to overlap the instrument panel 20 when displayed in the instrument panel 20, and therefore, it is preferable to display the right rear side portion on the display 22 without displaying it in the instrument panel 20.

At the same time, a speed display or the like is performed on the right side of the instrument panel 20, and a state that can be confirmed is maintained. In the present embodiment, since the two views are secured in a state where information such as the speed of the instrument panel 20 can be confirmed and the position of important information such as the speed in the instrument panel 20 is not changed, the time required for the driver to grasp the display position every time the driver turns the wheel can be shortened, and the angle of the head twist or the like can be reduced.

In the case where the steering wheel 18 is disposed on the right side, similar effects can be obtained by displaying the right rear side on the right side of the instrument panel 20, displaying the speed class on the left side of the instrument panel 20, or displaying the speed between the tachometer 80 and the speedometer 82 in a numerical manner, and displaying the left rear side on the display 22 in the center of the vehicle body.

Next, an in-vehicle driving assistance device according to embodiment 2 (hereinafter referred to as "2 nd driving assistance device 10B") will be described with reference to fig. 6A to 11.

The 2 nd driving assistance device 10B has substantially the same configuration as the 1 st driving assistance device 10A described above, but differs in having a BSI (blind spot information) function. The BSI function is to turn on an indicator in a rearview mirror in a direction of a vehicle 12 as shown in fig. 6A to 7B to inform that another vehicle approaches when another vehicle is present diagonally behind the vehicle. In this state, when the turn signal operation lever 36 is operated in a direction in which the indicator 100 is lit, the driver is alerted by the blinking of the indicator 100 and the alarm sound.

The 2 nd driving assistance device 10B displays the symbol image 102 simulating the indicator 100 in a manner superimposed on the captured image, that is, the captured image from the left camera 34L embedded in place of the tachometer 80 or the captured image from the right camera 34R displayed on the display 22. In the description of the 2 nd driving assistance device 10B, the same names and reference numerals are used for the processing units corresponding to the various processing units constituting the 1 st driving assistance device 10A, and a repetitive description thereof will be omitted.

As shown in fig. 8, the instrument panel 20 of the 2 nd driving assistance device 10B has a meter ECU40, a meter image memory 42, a meter liquid crystal display panel 44, a 1 st sound source 46A, and a 1 st speaker 48A.

The meter ECU40 includes the 1 st arithmetic unit 50A, the 1 st storage unit 52A, and the 1 st input/output unit 54A, as in the 1 st driving assistance device 10A described above.

The 1 st arithmetic unit 50A includes a 1 st normal image processing unit, a 1 st embedded image processing unit, and a 1 st display output unit, as in the 1 st driving assistance device 10A described above, and particularly, a 1 st audio output unit 65A in the 2 nd driving assistance device 10B. The 1 st audio output unit 65A is activated by the 1 st embedded image processing unit 62A, reads audio data from the 1 st audio source 46A, and outputs the audio data to the 1 st speaker 48A. Accordingly, the 1 st speaker 48A outputs a warning sound.

As shown in fig. 8 and 9, the 2 nd driving assistance device 10B includes: a left radar 110L (see fig. 8) that is provided at a left side portion of the vehicle 12 and searches for a left side of the vehicle 12; and a right radar 110R (see fig. 9) provided on a right side portion of the vehicle 12 for searching for a right side portion of the vehicle 12. The 2 nd driving assistance device 10B includes a left periphery monitoring unit 112L (see fig. 8) and a right periphery monitoring unit 112R (see fig. 9).

As shown in fig. 8, the left periphery monitoring unit 112L detects whether another vehicle approaches within a predetermined distance on the left side of the vehicle 12 based on the left detection signal SfL from the left radar 110L. When another vehicle approaches within a predetermined distance on the left side of the vehicle 12, the left periphery monitoring unit 112L outputs a left detection signal SfR, which is a result of BSI detection, to the meter ECU40, for example, via can (controller Area network). The right radar 110R and the right periphery monitoring unit 112R shown in fig. 9 will be described later.

As shown in fig. 8, the 1 st embedded image processing portion 62A of the meter ECU40, for example, trims the captured image of the left-side camera 34L and embeds it in the display area of the image tachometer 80 in the meter image memory 42, and, for example, draws a symbol image 102 on the top of the embedded captured image, the symbol image 102 simulating the indicator 100 based on the detection result of BSI. After that, the 1 st embedded image processing part 62A activates the 1 st display output part 64A and the 1 st sound output part 65A, displays the image data drawn in the meter image memory 42 on the instrument panel 20, and acoustically outputs a warning sound from the 1 st speaker 48A.

That is, as shown in fig. 6B and 7B, a photographed image from the left side camera 34L is displayed in an area of the tachometer 80 on the left side of the instrument panel 20, and a symbol image 102 simulating the above-described indicator 100 is displayed, for example, on the upper portion of the photographed image. The warning sound is acoustically output from the 1 st speaker 48A while the symbol image 102 is displayed.

On the other hand, as shown in fig. 9, the display 22 of the 2 nd driving assistance device 10B has a display ECU90, a display image memory 92, a display liquid crystal display panel 94, a 2 nd sound source 46B, and a 2 nd speaker 48B.

The right periphery monitoring unit 112R detects whether another vehicle approaches within a predetermined distance on the right side of the vehicle 12 based on the right detection signal SfR from the right radar 110R. When another vehicle approaches within a predetermined distance on the right side of the vehicle 12, the right periphery monitoring unit 112R outputs a right detection signal SfR, which is a result of BSI detection, to the 2 nd embedded image processing unit 62B, for example, via CAN.

The 2 nd embedded image processing portion 62B of the display ECU acquires the captured image from the right camera 34R, draws it in the display image memory 92, and draws a symbol image 102 simulating the above-described pointer 100, for example, on the upper part of the drawn captured image. After that, the 2 nd embedded image processing section 62B displays the image data drawn in the display image memory 92 on the display 22 by activating the 2 nd display output section 64B and the 2 nd sound output section 65B, and outputs the warning sound in sound form from the 2 nd speaker 48B. That is, as shown in fig. 6B, the photographed image from the right-side camera 34R is displayed on the display 22, and a symbol image 102 simulating the above-described pointer 100 is displayed, for example, on the upper portion of the photographed image. The warning sound is acoustically output from the 2 nd speaker 48B while the symbol image 102 is displayed.

In this way, when the driver seat 30 is provided on the left side of the vehicle 12, the 2 nd driving assistance device 10B displays the captured image from the left camera 34L on the portion of the instrument panel 20 that displays the tachometer 80, and displays the symbol image 102 of the indicator 100 simulating the BSI on the top of the captured image, for example. In addition, a shot image from the right-side camera 34R is displayed on the display 22 provided at the central portion of the instrument panel 16, and a symbol image 102 simulating the indicator 100 of BSI is displayed, for example, on the upper portion of the shot image. Accordingly, the twist angle for confirming the following vehicle and the vehicle approaching from the side can be reduced, and the driver can easily confirm the following vehicle or the vehicle at the side.

Here, the processing operation of the 2 nd driving assistance device 10B will be described with reference to fig. 10 and 11.

First, in step S101, the 1 st embedded image processing unit 62A determines whether or not the blind spot display system switch 38 is turned on.

When the blind spot display system switch 38 is turned on, the process proceeds to step S102, and the 1 st embedded image processing unit 62A acquires a captured image from the left side camera 34L that captures the left and rear sides of the vehicle 12, for example, trims the captured image and embeds the trimmed captured image in the rendering area of the tachometer 80 in the meter image memory 42.

In step S103, the 1 st embedded image processing unit 62A determines whether another vehicle approaches the left side of the vehicle 12 based on the BSI detection result from the left periphery monitoring unit 112L. If another vehicle approaches, the process proceeds to step S104, and the 1 st embedded image processing unit 62A draws a symbol image 102 of the pointer 100 simulating BSI on the captured image, for example.

In step S105, the 1 st display output unit 64A displays the image data drawn in the meter image memory 42 on the instrument panel 20. Accordingly, the photographed image from the left camera 34L is displayed in the area of the tachometer 80 on the left side of the instrument panel 20, and the symbol image 102 of the indicator 100 simulating BSI is displayed, for example, on the upper portion of the photographed image.

In step S106, the 1 st sound output unit 65A reads out sound data of the warning sound from the 1 st sound source 46A and outputs the sound data to the 1 st speaker 48A. Accordingly, the 1 st speaker 48A outputs a warning sound.

In step S107, the 2 nd embedded image processing unit 62B determines whether another vehicle approaches the right side of the vehicle 12 based on the BSI detection result from the right periphery monitoring unit 112R. If another vehicle approaches, the process proceeds to step S108, and the 2 nd embedded image processing unit 62B draws the symbol image 102 of the pointer 100 simulating the BSI on the captured image, for example.

In step S109, the 2 nd display output unit 64B displays the image data drawn in the display image memory 92 on the liquid crystal display panel of the display. Accordingly, the captured image from the right camera 34R is displayed on the display 22, and the symbol image 102 of the pointer 100 simulating BSI is displayed, for example, on the upper part of the captured image.

In step S110, the 2 nd sound output unit 65B reads out the sound data of the warning sound from the 2 nd sound source 46B, and outputs the sound data to the 2 nd speaker 48B. Accordingly, a warning sound is output from the 2 nd speaker 48B.

On the other hand, when it is determined in step S101 that the blind spot display system switch 38 is off, the process proceeds to step S111, and the 1 st embedded image processing unit 62A determines whether or not the winker operation lever 36 is operated to the left side. When the winker operation lever 36 is operated to the left, the process proceeds to step S112, and the 1 st embedded image processing unit 62A acquires a captured image from the left side camera 34L that captures the left and rear sides of the vehicle 12, for example, trims the captured image and embeds the trimmed captured image in the display area of the tachometer 80 in the meter image memory 42.

In step S113, the 1 st embedded image processing unit 62A determines whether another vehicle approaches the left side of the vehicle 12 based on the BSI detection result (left side detection signal SfL) from the left periphery monitoring unit 112L. If another vehicle approaches, the process proceeds to step S114, and the 1 st embedded image processing unit 62A draws a symbol image 102 of the pointer 100 simulating BSI on the captured image, for example.

In step S115, the 1 st display output unit 64A displays the image data drawn in the meter image memory 42 on the instrument panel 20. Accordingly, the photographed image from the left camera 34L is displayed in the area of the tachometer 80 on the left side of the instrument panel 20, and the symbol image 102 of the indicator 100 simulating BSI is displayed, for example, on the upper portion of the photographed image. Alternatively, the driver may be noticed by adopting a display mode in which a circular lighting is performed so as to surround the display portion along a frame in the tachometer 80 region in the instrument panel 20.

In step S116, the 1 st sound output unit 65A reads out sound data of the warning sound from the 1 st sound source 46A and outputs the sound data to the 1 st speaker 48A. Accordingly, the 1 st speaker 48A outputs a warning sound.

Thereafter, in step S117, the 2 nd normal image processing unit 60B causes the display 22 to display a map image, a route image, and the like requested by the driver and the like.

If it is determined in step S111 that the winker operation lever 36 has not been operated to the left, the routine proceeds to step S118 in fig. 11, and the 2 nd embedded image processing unit 62B determines whether or not the winker operation lever 36 has been operated to the right. When the winker operation lever 36 is operated to the right, the process proceeds to step S119, and the 2 nd embedded image processing unit 62B acquires a captured image from the right camera 34R that captures the right rear side of the vehicle 12, and draws it in the display image memory 92.

Thereafter, in step S120, the 2 nd embedded image processing unit 62B determines whether another vehicle approaches the right side of the vehicle 12 based on the BSI detection result (right side detection signal SfR) from the right side periphery monitoring unit 112R. When another vehicle approaches, the process proceeds to step S121, and the 2 nd embedded image processing unit 62B draws a symbol image 102 of the pointer 100 simulating BSI, for example, on the top of the captured image.

Thereafter, in step S122, the 2 nd display output unit 64B displays the image data drawn in the indicator image memory 92 on the indicator 22. Accordingly, the captured image from the right camera 34R is displayed on the display 22, and the symbol image 102 of the pointer 100 simulating BSI is displayed, for example, on the upper part of the captured image. Alternatively, the driver may be configured to be noticed by adopting a display mode in which a substantially rectangular lighting is performed so as to surround the display portion along the frame of the display portion of the display 22.

In step S123, the 2 nd sound output unit 65B reads the sound data of the warning sound from the 2 nd sound source 46B and outputs the sound data to the 2 nd speaker 48B. Accordingly, a warning sound is output from the 2 nd speaker 48B.

Thereafter, in step S124, the 1 st normal image processing unit 60A displays the display mode of the instrument panel 20 in the normal state, that is, the tachometer 80 on the left side of the instrument panel 20 and the speedometer 82 on the right side.

In the case where it is determined in step S118 that the winker operation lever 36 has not been operated to the right, that is, the blind spot display system switch 38 is off and the winker operation lever 36 has not been operated to the left and right, the 1 st normal image processing unit 60A displays the tachometer 80 on the left side of the instrument panel 20 and the speedometer 82 on the right side in step S125, and the 2 nd normal image processing unit 60B displays a map image, a route image, and the like requested by the driver and the like on the liquid crystal display panel 94 of the display in step S126.

After a predetermined time (for example, 1/(NTSC frame rate) has elapsed after the process at step S110, the process at step S117, the process at step S124, or the process at step S126 is completed, the process of shifting to step S101 is repeated.

In the above example, the tachometer 80 is displayed on the left side of the instrument panel 20 and the speedometer 82 is displayed on the right side, but the speedometer 82 may be displayed on the left side of the instrument panel 20 and the tachometer 80 may be displayed on the right side. In this case, for example, a captured image from the left side camera 34L (a captured image of the left rear side of the vehicle 12) may be displayed on the tachometer 80.

In the above example, the driver seat 30 is provided on the left side of the vehicle 12, but instead, the driver seat 30 may be provided on the right side of the vehicle 12. In this case, the instrument panel 20 is positioned on the right side of the instrument panel 16, and at this time, a captured image from the right camera 34R (a captured image of the right rear side of the vehicle 12) may be displayed on the tachometer 80 of the instrument panel 20. Further, the captured image from the left camera 34L (the captured image of the left rear side of the vehicle 12) may be displayed on the center display 22.

[ invention obtainable according to the embodiment ]

The invention that can be grasped from the above-described embodiments is described below.

[1] The present embodiment is an in-vehicle driving assist device having a photographing mechanism (left and right cameras) for photographing regions of left and right rear of a vehicle, a display mechanism (instrument panel and display), and a control mechanism (instrument ECU and display ECU); the display mechanism is used for displaying the shooting result of the shooting mechanism as an image; the control mechanism drives and controls the display mechanism, and the display mechanism displays the area at the left rear part and the area at the right rear part. The vehicle is provided with an instrument panel which is disposed at a position overlapping a steering wheel in a rear view of the instrument panel and displays at least a state of the vehicle, and a display is disposed at a position located outside the steering wheel in the instrument panel, one of a region of a left rear and a region of a right rear is displayed on the display, and the other of the region of the left rear and the region of the right rear is displayed in the instrument panel.

Accordingly, the twist angle for confirming the following vehicle can be reduced, so that the driver can easily confirm the following vehicle.

[2] In the present embodiment, the other is displayed at a position offset from the center of the instrument panel. With this, it is possible to clearly know whether the image displayed at the position offset from the center of the instrument panel is an image showing the left rear region or an image showing the right rear region.

[3] In the present embodiment, a speedometer is disposed at a position offset from the center of the instrument panel to one side, a tachometer is disposed at a position offset from the center to the other side, and the other is displayed instead in the tachometer. Accordingly, it is possible to confirm the image indicating the left rear area or the image indicating the right rear area while confirming the vehicle speed without hiding the frequently referred speedometer.

[4] In the present embodiment, the other is displayed so that the contour thereof matches the contour of the tachometer. The image representing the area on the left rear side or the image representing the area on the right rear side can be embedded in the dashboard without giving a sense of incongruity, and thus the design of the dashboard is not impaired.

[5] In the present embodiment, if the other side is a region on the right rear side as viewed by the driver, the other side is displayed at a position shifted to the right side from the center of the instrument panel, and if the other side is a region on the left rear side as viewed by the driver, the other side is displayed at a position shifted to the left side from the center of the instrument panel. With this, it is possible to easily grasp whether the other image is an image showing a region on the right rear side or an image showing a region on the left rear side, based on the offset position.

[6] In the present embodiment, the display portion is located on the left side of the driver, and if the other side is in the area on the rear right side as viewed by the driver, the one side is displayed in the instrument panel, and the other side is displayed on the display portion.

In the case where the display is located on the left side of the driver, the instrument panel is located on the left side with respect to the center of the vehicle as viewed by the driver, and the display portion is located on the right side. Accordingly, since the image of the right rear region is displayed on the display unit located on the right side, the right rear region is not erroneously regarded as the left rear region.

[7] In the present embodiment, the display is located on the right side as viewed by the driver, and if the one side is in the area on the rear right side as viewed by the driver, the one side is displayed on the display, and the other side is displayed in the instrument panel.

The display is located on the right side as viewed by the driver, and thus the instrument panel is located on the left side as viewed by the driver. Accordingly, the image of the right rear region is displayed on the display unit positioned on the right side, and the image of the left rear region is displayed on the instrument panel positioned on the left side.

[8] In the present embodiment, the display unit is located on the left side as viewed by the driver, and if the one side is the region on the right rear side as viewed by the driver, the one side is displayed in the instrument panel, and the other side is displayed on the display.

The display is located on the left side as viewed by the driver, and therefore, the instrument panel is located on the right side as viewed by the driver. Accordingly, the image of the right rear region is displayed in the instrument panel positioned on the right side, and the image of the left rear region is displayed in the display section positioned on the left side, so that the right rear region is not mistakenly recognized as the left rear region.

[9] In the present embodiment, the system further includes a periphery monitoring means, and the detection result of the periphery monitoring means is output to a display means through CAN communication, and the display means displays the detection result in a symbolic form.

CAN communication is a serial connection, so devices CAN be connected to each other by one or two signal lines. Therefore, cost reduction can be achieved, and weight increase and the like can be suppressed. Further, since the communication protocol is developed on the premise of use in an automobile, it has noise-resistant characteristics. In addition, various effects by CAN communication CAN be exhibited.

Further, since the detection result of the periphery monitoring means is output to the display means by CAN communication, the twist angle for confirming the side of the vehicle CAN be reduced, and the driver CAN easily confirm the side vehicle. Further, it is possible to clearly know whether another vehicle approaches the left side of the vehicle or another vehicle approaches the right side of the vehicle, by the symbol displayed at the position offset from the center of the instrument panel.

[10] In the present embodiment, the vehicle further includes a periphery monitoring means and a sound output means, and the detection result of the periphery monitoring means is output to the sound output means through CAN communication, and the sound output means outputs the detection result as sound.

By performing the audio output in addition to the symbol display by the display means, it is possible to more clearly know whether another vehicle is approaching the left side of the vehicle or another vehicle is approaching the right side of the vehicle.

The present invention is not limited to the above embodiments, and it goes without saying that modifications can be made freely without departing from the scope of the present invention.