JP2018171971A - Display device for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device for an automobile suppressing anxiety of an occupant to running of an automatically operated automobile.SOLUTION: The display device for an automobile comprises: a display part 8 displaying a running image of an automobile M to an occupant D boarded on the automatically operated automobile M; a change section identifying part 5 identifying a change section P1 in which a running direction changes in a target route T2 in which a running route of the automobile M is set; a display route generation part 6 generating a display route S in which the target route T2 is changed so as to smooth the change section P1 identified by the change section identifying part 5; and a display control part 7 causing a display part 8 to change the display router S generated by the display route generation part 6 to the target route T2 and to display the target route T2.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an automobile display device, and more particularly to an automobile display device that displays a running image of an automobile to a passenger who has boarded an automobile that is automatically operated.

2. Description of the Related Art Conventionally, an automobile display device that displays a running image of an automobile to a passenger who has boarded an automobile that is automatically driven has been used. For example, the display device for an automobile inputs a target route for driving the vehicle by automatic driving, and displays the target route for the passenger so that the passenger can grasp the route of the vehicle. Anxiety can be suppressed.
However, if complicated information is displayed to the passenger, the passenger may not be able to understand the displayed content smoothly.

  Therefore, as a technique for smoothly transmitting display contents to the passenger, for example, Patent Document 1 discloses that the driving behavior that the vehicle that is being driven automatically is about to be taken next is intuitively and instantaneously understandable to the passenger. A vehicle image display system for displaying a notice has been proposed. Since this vehicle image display system displays the traveling behavior of the host vehicle as a visual image image in advance, the display content can be smoothly transmitted to the passenger.

JP, 2006-182891, A

  However, since the vehicle image display system of Patent Document 1 displays the same route as the target route on which the vehicle travels, if the displayed route is different from the driving sensation of the passenger, the passenger is made uneasy. There was a fear.

  The present invention has been made to solve such a conventional problem, and an object of the present invention is to provide an automobile display device that suppresses passengers' anxiety about traveling of an automobile that is automatically driven.

  The display device for a vehicle according to the present invention has a display unit that displays a travel image of a vehicle for a passenger who has boarded the vehicle that is automatically operated, and a travel direction changes in a target route in which a route traveled by the vehicle is set. A change path specifying unit for specifying a change section to be generated, a display path generating unit for generating a display path in which the target path is changed to smooth the change section specified by the change section specifying unit, and a display path generating unit And a display control unit that displays the generated display route on the display unit instead of the target route.

  Here, it is preferable that the display path generation unit generates a display path that extends smoothly in a straight line from a start position of the change section to a target position set at a position past the end position of the change section.

In addition, when the target route is changed so as to return the travel position of the automobile that has deviated from the target route, the change interval specifying unit specifies the changed target route change region, and the display route generating unit The display path can be generated so as to smooth the changed section of the target path.
Further, when the change section specifying unit deviates from the target route in the lane in which the vehicle travels, the change section identifying unit excludes the section deviating from the target route from the change section, and the display control unit displays the target route on the display unit. be able to.

  In addition, the vehicle further includes a lane shape acquisition unit that acquires the shape of the lane in which the automobile travels, and the display route generation unit smoothly extends along the lane based on the lane shape acquired by the lane shape acquisition unit. Is preferably generated.

  In addition, the display route generation unit can generate a display route when the lane shape acquired by the lane shape acquisition unit bends with a substantially constant width.

  In addition, when the vicinity of the start position of the change section extends in substantially the same direction as the traveling direction of the automobile, the display route generation unit can display the display route with emphasis on the display unit.

  According to the present invention, the display route generation unit generates a display route in which the target route is changed so as to smooth the change section, and the display control unit changes the generated display route to the target route to the display unit. Since the display is performed, it is possible to provide a vehicle display device that suppresses the passenger's anxiety about the traveling of the automatically driven vehicle.

It is a figure which shows the structure of the motor vehicle provided with the display apparatus for motor vehicles based on Embodiment 1 of this invention. It is a block diagram which shows the structure of the display apparatus for motor vehicles. It is a figure which shows a mode that a motor vehicle drive | works along a target path | route. It is a figure which shows a mode that a display path | route is produced | generated. 4 is a block diagram illustrating a configuration of a display device for an automobile according to Embodiment 2. FIG. FIG. 10 is a diagram illustrating a manner of generating a display path in the second embodiment. FIG. 10 is a diagram showing a state of generating a display path in the third embodiment. FIG. 10 is a diagram showing a state in which a display path is highlighted in the fourth embodiment. It is a figure which shows a mode that a display path | route is produced | generated in the modification of Embodiment 1-4.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
Embodiment 1
FIG. 1 shows the configuration of an automobile provided with the automobile display device according to Embodiment 1 of the present invention. This vehicle is configured to be able to switch between automatic driving and manual driving, and includes a driver's seat 1, an instrument panel 2 disposed in front of the driver's seat 1, a driver's seat 1 and an instrument panel 2. And a vehicle display device 4 disposed on the instrument panel 2.

The instrument panel 2 is arranged so that the front part of the passenger compartment extends in the vehicle width direction, and various in-vehicle devices such as a switch for switching between automatic operation and manual operation are provided. In addition, as an automatic driving | operation, not only what controls the driving | operation of a motor vehicle completely but the driving assistance system which partially supports the driving | operation of the passenger D is also included.
The steering 3 is for the passenger D to steer the automobile during manual driving, and is configured to be retractable during automatic driving.

  The vehicle display device 4 displays the safety in traveling of the vehicle with respect to the passenger D sitting in the driver's seat 1, and is disposed at a position that can be seen in front of the passenger D.

Next, the configuration of the automobile display device 4 will be described in detail.
As shown in FIG. 2, the automobile display device 4 includes a change section specifying unit 5, and a display path generating unit 6, a display control unit 7, and a display unit 8 are sequentially connected to the change section specifying unit 5. In addition, a travel image generation unit 9 is connected to the display control unit 7, and an image generation unit 10 is configured by the display route generation unit 6 and the travel image generation unit 9. A device control unit 11 is connected to the change section specifying unit 5, the image generating unit 10, and the display control unit 7, and an operation control unit 12 is connected to the device control unit 11.

  The driving control unit 12 controls driving of the automobile in accordance with switching between automatic driving and manual driving by the passenger D. The driving control unit 12 includes a storage unit and a position acquisition unit (not shown), and at the time of automatic driving, the vehicle is based on map data stored in the storage unit in advance and the current position of the vehicle obtained from the position acquisition unit. A target route indicating a route to the destination where the vehicle travels is set. Then, the operation control unit 12 controls the traveling of the automobile so that the automobile travels along the calculated target route. On the other hand, the driving control unit 12 controls the driving of the automobile according to the operation amount of the steering 3 and the like by the passenger D during the manual driving.

The change section specifying unit 5 specifies a change section in which the traveling direction of the vehicle changes in the target route calculated by the driving control unit 12.
The display route generation unit 6 generates a display route in which the target route is changed so that the change section specified by the change section specifying unit 5 is smooth.
The travel image generation unit 9 generates a travel image indicating peripheral information of a position where the vehicle is currently traveling based on the map data in the operation control unit 12 and the position information of the vehicle.

The display control unit 7 causes the display unit 8 to display the vehicle driving image generated by the driving image generation unit 9 by replacing the display route generated by the display route generation unit 6 with the target route.
The display unit 8 is disposed at a position visible to the occupant D on the instrument panel 2, and displays a running image and a display route of the vehicle for the occupant D under the control of the display control unit 7.

The device control unit 11 controls each part in the automobile display device 4 based on the driving information of automatic driving and manual driving input from the driving control unit 12.
The image generation unit 10, the display control unit 7, the device control unit 11, and the operation control unit 12 are composed of a CPU and an operation program for causing the CPU to perform various processes. May be.

Next, the operation of this embodiment will be described.
First, as shown in FIG. 1, the passenger D sitting in the driver's seat 1 steers the steering 3 to drive the automobile. Here, when the vehicle is automatically driven, as shown in FIG. 2, the operation control unit 12 calculates a target route based on the map data and the current position of the vehicle, and based on the target route. Control the driving of the car.

  At this time, the operation control unit 12 outputs information on the target route to the change section specifying unit 5 via the device control unit 11. In addition, the operation control unit 12 outputs map data and vehicle position information to the travel image generation unit 9 of the image generation unit 10 via the device control unit 11.

As illustrated in FIG. 3, the travel image generation unit 9 indicates peripheral information of the vehicle M traveling in the lane R (travel lane) based on the map data input from the operation control unit 12 and the position information of the vehicle M. A running image is generated. The generated travel image is output from the travel image generation unit 9 to the display control unit 7.
On the other hand, when the target route T1 is input from the driving control unit 12, the change section specifying unit 5 specifies a change in the traveling direction of the automobile M along the target route T1. At this time, if the change in the traveling direction specified in the target route T1 is smaller than a predetermined value, the information on the target route T1 is output to the display control unit 7 as it is via the image generation unit 10.

When the travel image of the vehicle M is input from the travel image generation unit 9 and the target route T1 is input from the change section specifying unit 5, the display control unit 7 displays the target route T1 superimposed on the travel image of the vehicle M. This is displayed on part 8.
Thereby, the passenger D who has boarded the automobile M can clearly grasp the course of the automobile M by visually recognizing the target route T1 displayed on the display unit 8, and the automobile M that is automatically driven can feel at ease. You can board.

  Here, when the automobile M suddenly deviates from the target route T1 due to changes in the external environment, for example, disturbances such as crosswinds and hail, the operation control unit 12 newly calculates the target route T1 of the automobile M. For example, as shown in FIG. 4, it is assumed that the automobile M has deviated to the left from the target route T1 due to a strong crosswind from the right side. When the driving control unit 12 detects that the traveling position of the automobile M is out of the target route T1 based on the position information of the automobile M, the driving control unit 12 returns the traveling position of the automobile M outside the target route T1 to the target route T1. Therefore, a new target route T2 is calculated, and the route of the automobile M is changed from the target route T1 to the target route T2.

Then, the operation control unit 12 outputs the calculated target route T2 to the change section specifying unit 5. When the target route T2 is input from the driving control unit 12, the change section specifying unit 5 searches for a change in the traveling direction of the automobile M along the target route T2, similarly to the target route T1. And when the change of a running direction is more than a predetermined value in target route T2, the section is specified as change section P1 of target route T2.
For example, when the operation control unit 12 sets a target route T2 that returns the traveling position of the automobile M to the original target route T1 at an early stage, a change section P1 in which the traveling direction greatly changes may be formed. The change section specifying unit 5 can specify the change section P1 based on the angle at which the target route T2 changes, the change rate of the angle, and the like. The identified change section P1 is output from the change section specifying unit 5 to the display path generating unit 6.

When the change interval P1 of the target route T2 is input from the change interval specifying unit 5 to the display route generation unit 6, the display route generation unit 6 changes the target route T2 so that the change interval P1 is generally smooth. Display path S is generated.
For example, when the target route T1 is changed so as to return the travel position of the automobile that has deviated from the target route T1 as described above, the display route generation unit 6 starts from the start position P2 of the change section P1 in the target route T2. The target position P3 is set at a position past the end position of the change section P1. As the target position P3, for example, when the automobile M travels according to the target route T2, it can be set to a position where it is estimated that the traveling position of the automobile M completely returns to the original target route T1. In this way, when the target position P3 is set, the display path generation unit 6 generates the display path S that smoothly extends linearly from the start position P2 of the change section P1 toward the target position P3. That is, the display path generation unit 6 generates a display path S that extends smoothly without locally changing. The generated display path S is output from the display path generation unit 6 to the display control unit 7.

On the other hand, the driving image generation unit 9 generates a driving image of the car M based on the map data input from the driving control unit 12 and the position information of the car M, as described above, and the driving image is displayed on the display control unit 7. Is output.
When the display route S is input from the display route generation unit 6 and the driving image of the automobile M is input from the driving image generation unit 9, the display control unit 7 changes the display route S to the driving image instead of the target route T2. Overlapping is displayed on the display unit 8.

  As a result, the passenger D who has boarded the automobile M can board the automobile M that is automatically driven by viewing the display route S displayed on the display unit 8 with confidence. Here, in the target route T2 on which the automobile M travels, there is a change section P1 in which the travel direction changes greatly. For this reason, if the target route T2 is displayed on the display unit 8 as it is, the passenger D may be anxious about the automatic driving in which the traveling direction of the automobile M greatly changes in the change section P1.

  Therefore, while the automobile M travels along the target route T2, the display unit 8 displays a display route S different from the target route T2 of the automobile M. The display route S is formed so as to extend smoothly in a straight line from the start position P2 of the change section P1 in the target route T2 toward the target position P3, and the traveling direction of the automobile M with respect to the passenger D is roughly determined. By telling to, the anxiety of the passenger D with respect to the traveling of the automobile M that is automatically driven can be suppressed.

According to the present embodiment, when the target route T1 is changed so as to return the travel position of the automobile M that has deviated from the target route T1, the change interval P1 of the target route T2 changed by the change interval specifying unit 5 The display route generation unit 6 generates a display route S that smoothly extends linearly from the start position P2 of the change section P1 in the target route T2 toward the target position P3. The anxiety of the passenger D with respect to can be suppressed.
Note that, when the vehicle M deviates from the target route T1 in the lane R in which the vehicle M travels, the change segment specifying unit 5 determines that the segment deviating from the target route T1 from the change segment P1 because the change in the traveling direction of the vehicle M is small It is preferable to exclude. For this reason, the display route generation unit 6 does not generate the display route S, and the display control unit 7 causes the display unit 8 to display the target route T1.

Embodiment 2
In the first embodiment, the display path generation unit 6 generates the display path S that smoothly extends linearly from the start position P2 of the change section P1 in the target path T2 toward the target position P3. It is only necessary to generate the display path S in which the target path is changed so as to be smooth, and the present invention is not limited to this generation method.

For example, as shown in FIG. 5, the lane shape acquisition unit 21 can be newly connected to the display route generation unit 6 in the first embodiment. The lane shape acquisition unit 21 acquires the shape of the lane in which the automobile M travels. The lane shape acquisition unit 21 can be composed of, for example, a camera. The lane shape acquisition unit 21 can also acquire map data from the operation control unit 12 and calculate the lane shape based on the map data.
The display route generation unit 6 generates a display route S that extends smoothly along the lane based on the lane shape acquired by the lane shape acquisition unit 21.

For example, as shown in FIG. 6, when the automobile M travels on a lane R that bends gently with a substantially constant width, the driving control unit 12 continuously applies pressure to the passenger D. The vehicle M is allowed to travel linearly along the target route T without traveling along the lane R.
First, the change section specifying unit 5 specifies a change section P1 in which the traveling direction of the automobile M changes on the target route T based on the target route T input from the driving control unit 12. The lane shape acquisition unit 21 acquires the shape of the lane R on which the automobile M travels. The changed section P1 specified by the changed section specifying unit 5 and the shape of the lane R acquired by the lane shape acquiring unit 21 are output to the display route generating unit 6.

  When the change section P1 is specified by the change section specifying unit 5, the display route generation unit 6 determines the target from the start position P1 of the change section P1 based on the shape of the lane R acquired by the lane shape acquisition unit 21. A display path S that smoothly extends along the lane R toward the position P3 is generated. At this time, when the shape of the lane R acquired by the lane shape acquisition unit 21 bends with a certain width, the display route generation unit 6 preferably generates the display route S that extends smoothly along the lane R. . In this way, the display route generation unit 6 can easily generate the display route S that smoothly extends in the center of the lane R.

As a result, the automobile M travels linearly along the target route T, whereas a display route S extending along the lane R is displayed on the display unit 8. In this way, by roughly reporting the traveling direction of the automobile M to the passenger D, the anxiety of the passenger D with respect to the automatic driving of the automobile M can be suppressed.
According to the present embodiment, since the display route generation unit 6 generates the display route S that smoothly extends along the lane R based on the shape of the lane R, the anxiety of the passenger D with respect to the automatic driving of the automobile M is suppressed. can do.

Embodiment 3
In the first embodiment, the display route generation unit 6 generates the display route S when the target route T1 is changed so as to return the traveling position of the automobile M that has deviated from the target route T1. It is only necessary to generate a display path S that extends linearly from the start position P2 of the change section P1 to the target position P3 set at a position past the end position of the change section P1, and only when the target path T1 is changed. It is not something that can be done.

For example, as shown in FIG. 7, the display route generation unit 6 can generate the display route S even when the target route T is not changed.
Here, the lane R in which the automobile M travels is formed so as to widen, and the operation control unit 12 changes the travel position of the automobile M to the center of the lane R widened at an early stage. T is generated. Thereby, a change section P1 occurs in the target route T, and the change section P1 is specified by the change section specifying unit 5.

  The display path generation unit 6 sets the target position P3 at a position past the end position of the change section P1 from the start position P2 of the change section P1 in the target path T. Then, the display path generation unit 6 generates a display path S that smoothly extends linearly from the start position P2 of the change section P1 toward the target position P3.

  According to the present embodiment, the display route generator 6 is automatically driven to generate the display route S that smoothly extends linearly from the start position P2 of the change section P1 in the target route T toward the target position P3. The anxiety of the passenger D regarding the traveling of the automobile M can be suppressed.

Embodiment 4
In the above first to third embodiments, the display route generation unit 6 emphasizes the display route when the vicinity of the start position P2 of the change section P1 extends in substantially the same direction as the traveling direction of the vehicle M in the target route. It can be displayed on the display unit 8.
For example, as shown in FIG. 8, the traveling position of the automobile M is changed at a late stage, that is, in the vicinity of an intermediate position between the start position P2 and the target position P3. At this time, the change section P1 of the target route T is formed such that the vicinity of the start position P2 extends in substantially the same direction as the current traveling direction of the automobile M.

  As described above, when the vicinity of the start position P2 of the change section P1 in the target route T extends in substantially the same direction as the current travel direction of the automobile M, the travel direction of the automobile M is gradually changed from the start position P2. There is a possibility of giving anxiety to the passenger D boarding the automobile M. Therefore, the display route generation unit 6 highlights the display route S and displays it on the display unit 8 to clearly transmit that the traveling direction of the automobile M is changed, and to the traveling of the automobile M that is automatically driven. The anxiety of the passenger D can be suppressed.

  According to the present embodiment, the display route generation unit 6 emphasizes the display route S when the vicinity of the start position P2 of the change section P1 in the target route T extends in substantially the same direction as the traveling direction of the automobile M. Since it is displayed on the display unit 8, it is possible to suppress the anxiety of the passenger D with respect to the traveling of the automobile M that is automatically driven.

In the first to fourth embodiments, the display path generation unit 6 generates the display path S in which the target path is changed so that the change section P1 is completely eliminated, but the change section P1 is smooth, that is, changes. It is sufficient that the local change in the section P1 is reduced to such an extent that the passenger does not feel uneasy, and the present invention is not limited to the one that completely eliminates the change section P1.
For example, as shown in FIG. 9, in the first embodiment, the angle at which the change section P1 changes is reduced to such an extent that the occupant D is not worried, for example, the display path so as to reduce the change in the change section P1 by more than half. S can be generated.

  In the first to fourth embodiments, the traveling image generation unit 9 can correct the display of the automobile M based on the position of the display path S so that the automobile M travels along the display path S. . That is, the traveling image generation unit 9 does not display the automobile M at the actual traveling position along the target route, but corrects the display of the automobile M at a position along the display route S. Thereby, since the automobile M moving along the travel route S is displayed on the display unit 8, it is possible to suppress giving unnecessary uneasiness to the passenger D who visually recognizes the display unit 8.

  DESCRIPTION OF SYMBOLS 1 Driver's seat, 2 Instrument panel, 3 Steering, 4 Car display device, 5 Change area specific | specification part, 6 Display route generation part, 7 Display control part, 8 Display part, 9 Traveling image generation part, 10 Image generation part, DESCRIPTION OF SYMBOLS 11 Device control part, 12 Operation control part, 21 Lane shape acquisition part, D passenger, M car, R lane, T, T1, T2 target route, P1 change area, P2 start position, P3 target position, S display route

Claims (7)

A display unit for displaying a traveling image of the vehicle for a passenger who has boarded the vehicle to be automatically driven;
A change section identifying unit that identifies a change section in which a traveling direction changes in a target route in which a route on which the vehicle travels is set;
A display path generation unit that generates a display path in which the target path is changed to smooth the change section specified by the change section specifying unit;
A display device for an automobile, comprising: a display control unit that causes the display unit to display the display route generated by the display route generation unit in place of the target route.   2. The display path generation unit generates the display path that smoothly extends linearly from a start position of the change section to a target position set at a position past the end position of the change section. Automobile display device. The change section specifying unit specifies the change section of the changed target route when the target route is changed so as to return the travel position of the automobile deviating from the target route,
The automobile display device according to claim 2, wherein the display route generation unit generates the display route so as to smooth the change section of the changed target route. The change section identifying unit excludes a section out of the target route from the change section when the vehicle deviates from the target route in a lane in which the automobile is traveling,
The vehicle display device according to claim 3, wherein the display control unit displays the target route on the display unit. A lane shape acquisition unit that acquires a shape of a lane in which the automobile travels;
The said display route production | generation part produces | generates the said display route extended smoothly along the said lane based on the shape of the said lane acquired by the said lane shape acquisition part. Display device for automobiles.   The automobile display device according to claim 5, wherein the display route generation unit generates the display route when the shape of the lane acquired by the lane shape acquisition unit bends with a substantially constant width. The display route generation unit highlights the display route and causes the display unit to display the display route when the vicinity of the start position of the change section extends in the same direction as the travel direction of the automobile. The automobile display device according to claim 1.