EP2769374A1

EP2769374A1 - Method for displaying image information on a display unit of a vehicle and driver assistance device for carrying out such a method

Info

Publication number: EP2769374A1
Application number: EP12778676.2A
Authority: EP
Inventors: Joachim Mathes
Original assignee: Valeo Schalter und Sensoren GmbH
Current assignee: Valeo Schalter und Sensoren GmbH
Priority date: 2011-10-22
Filing date: 2012-10-09
Publication date: 2014-08-27
Also published as: DE102011116771A1; WO2013057008A1

Abstract

The invention relates to a method for displaying image information on a display unit (7) of a vehicle (3), in which surroundings of the vehicle (3) is detected with a detection device (6) of the vehicle (3), and in which the vehicle surroundings are displayed as image information on the display unit (7) in a first representation (8) having a first perspective or in a second representation (10) having a second perspective, wherein the representation (8, 10) is automatically changed if the vehicle (3) is in a first lane (1) that runs at an angle into a second lane (2) and the vehicle (3) is moving in the direction of the second lane (2), and the detection device (6) of the vehicle (3) can detect the second lane (2) within its detection range (61a, 61b) at least to the side of the lateral delimitations (1a, 1b) and the front delimitations (1c, 1d) of the first lane (1). The invention also relates to a driver assistance device (4) and a vehicle (3).

Description

Method for displaying image information on a display unit of a vehicle and driver assistance device for performing such

process

The invention relates to a method for displaying image information on a display unit of a vehicle, in which an environment of the vehicle is detected by a detection device of the vehicle, and in which the

Vehicle environment in a first representation in a first perspective or in a second representation in a second perspective as image information on the

Display unit is displayed. Furthermore, the invention relates to a

Driver assistance device for carrying out such a method.

From JP 9-180088 a device with a camera for a vehicle is known, wherein the device is operated manually. There are thus different by pressing an associated switch or by engaging a reverse gear

Views of a camera system automatically selected and displayed as a function of driving speed and steering angle of the vehicle.

In addition, WO 2010/045626 A2 discloses a device for a vehicle, in which a side view of the vehicle environment can also be recorded and displayed on a display unit.

Furthermore, EP 1 685 001 B1 discloses an embodiment of a device

Radar sensors, which can detect a transverse to a direction of travel of the vehicle transverse movement progress of another object.

However, the display scenarios in these known devices are limited and the user can thus obtain only very limited different displays on a display unit.

It is an object of the present invention, a method and a

Driver assistance device to provide, by means of which or by means of which the display of different representations of the vehicle environment is made more precise and user-friendly and situation-adapted. This object is achieved by a method, a driver assistance device and a vehicle according to the independent claims.

In an inventive method for displaying image information on a display unit of a vehicle, the environment of the vehicle with a

Detection device of the vehicle detected. The vehicle environment is displayed in a first representation in a first perspective or in a second representation in a second perspective as image information on the display unit. A change of presentation occurs automatically when a vehicle is on a first lane, which opens at an angle in a second lane and the vehicle moves in the direction of the second lane, and the detection device of the vehicle with its detection range, the second lane, at least can laterally capture the lateral and front boundaries of the first lane. The inventive method is a much more user-friendly and

situation-adapted image information presentation with different perspectives for the user achieved. Just when it is necessary in each case to represent the respectively best perspective of specific areas of the vehicle environment, this is ensured and in particular automatically depending on a specific

Environmental detection performed. This is specifically specified according to the method according to the invention. Especially such traffic situations in which a vehicle enters a second lane may often be extremely difficult due to the confluence angle of the first lane into the second lane that the driver sees sufficiently into the second lane. Especially in these situations, the method according to the invention automatically gives the driver the best possible

Perspective of the vehicle environment in the area of the road junction and in particular then also in the direction of the second lane allows. Thereby, an object detection when approaching and retracting the vehicle from the first lane to the second lane can be substantially improved. Objects located on the second lane can thus be detected very quickly and recognized immediately by a driver in a suitable perspective of the vehicle environment, as this is immediately displayed on the display unit.

Preferably, it is provided that when changing the representation, only the respective representation is displayed on the display. However, it can also be provided that in each case both representations are displayed on the display and when changing the representation, only the size of one representation is changed relative to the other. The given relevant representation of a perspective then becomes enlarged and placed in the foreground, so that it can be perceived in the foreground and best possible for the driver. Nevertheless, the further presentation is displayed at least as a small picture, so that here, too, the driver still receives appropriate information and can perceive.

Preferably, it is provided that a plan view is displayed as the perspective of the first representation, and as a perspective of the second representation of a

Side view of the vehicle environment is displayed. Especially the side view is essential if the driver approaches with his vehicle from the first lane to the second lane and then can see the detection device in the second lane quasi. Since objects in this regard then approach the vehicle coming laterally on the second lane, the side view is more intuitive in these situations and better with regard to the actual perception of the object with regard to the emergence of critical traffic situations.

It is preferably provided that the detection device on the vehicle

existing sensors for parking space measurement for boundary detection of the first lane and / or used for object detection on the second lane. This is a particularly noteworthy embodiment, as existing sensors are used multifunctionally and thus no additional additional

Sensors that would be used only for the object recognition on the second lane, are needed.

Preferably, the detection device is formed with at least one camera and / or at least one radar sensor, by means of which a lateral

Surrounding area of the vehicle and thus the second lane can be detected.

Especially then, even if sensors for parking space measurement for the

Limit detection of the first lane can be used

For example, ultrasound sensors may be provided.

Preferably, an automatic warning to the driver is generated depending on an object detection on the second lane. Especially in connection with the very fast and accurate detection option can also be a very needs-based and quick warning to the driver. For this purpose, acoustic and / or visual warning signals can be generated. Preferably, limitations of the first roadway are automatically detected by the detection device. This is also advantageous, since thus immediately after the

Detecting the lateral and front boundaries of the first lane a change of the image information representation takes place.

It is preferably provided that these detected limits of the first

Lane are automatically stored and displayed on a vehicle environment map. This can be visualized, for example by different colors, be identified.

Preferably, a change in the representation of the image information is automatically performed depending on the vehicle speed and an object possibly detected on the second lane.

By the method according to the invention, an improved activation of a warning to the driver can take place. The first lane may be, for example, a road or a junction of a private lot with the second lane. In this context, it can be, for example, a garage exit or another property exit.

By means of the method according to the invention, a demand-driven automatic activation of a warning device of the vehicle can take place, since object recognition on the second roadway can take place more quickly and more appropriately.

As soon as the detection device thus has a free lateral view of the second roadway, the change of the representation of the perspectives of the image information takes place on the display unit.

In particular, the lateral boundaries of the first roadway and the second roadway can by the already existing ultrasonic sensors of a

Driver assistance device for parking space measurement are detected. Alternatively, however, the lateral boundaries can also be detected by the at least one camera or by possibly existing radar sensors themselves.

In a multi-camera system, a plan view is preferably displayed as long as the vehicle is still in the first lane and the detection device can not yet look into the second lane. Automatically then on the Side view of the image display switched as soon as an insight of

Detection device is enabled in the second lane and thus objects on the second lane can be detected. In particular, this therefore takes place when the vehicle is approaching from the first roadway of the second roadway and has traveled as far forward or backward into the second roadway that the

Detection device has free lateral view of the second lane.

Furthermore, the invention also relates to a driver assistance device which is designed for carrying out a method according to the invention or an advantageous embodiment thereof.

The driver assistance device comprises in particular at least one

Control unit and the detection device and in particular a

Warning device.

Moreover, the invention also relates to a vehicle with a driver assistance device according to the invention.

Embodiments of the invention are explained in more detail below with reference to schematic drawings. Show it:

Figure 1 is a schematic plan view of a traffic situation in which a vehicle according to the invention is involved.

Fig. 2 is a schematic plan view of an embodiment of a

vehicle according to the invention with an inventive

Driver assistance device;

FIG. 3 is an illustration of a plan view of a vehicle surroundings map; FIG.

4 shows a representation of an image information on a display unit in a first perspective;

Fig. 5 is a schematic plan view of a vehicle in a compared to

Fig. 2 different position; Fig. 6 is another illustration of a plan view of a vehicle environment map; and

FIG. 7 shows a further illustration of image information on a display unit, which is different in comparison to the representation in FIG. 4.

In the figures, the same or functionally identical elements are the same

Provided with reference numerals.

In Fig. 1, a traffic situation is shown in a plan view, in which a first

Lane 1 opens into a second lane 2. The junction of the first lane 1 in the second lane 2 is here at a relatively large angle.

The first lane 1 may be a public road in this context. However, it may also be provided that the first lane 1 is an exit of a private property, for example a garage exit.

On the first lane 1, a vehicle 3 moves in the direction of the second

Lane 2. The vehicle 3 comprises a driver assistance device 4 which has a control unit 5 and a detection device 6. The detection device 6 comprises at least laterally detecting sensors 6a, 6b, 6c and 6d. In addition, the detection device 6 can also have at least one camera 6e.

At least some of the sensors 6a to 6d may be associated with a parking assistance system of the vehicle 3 and may be provided for parking space measurement.

The vehicle 3 may additionally or instead also comprise one or more radar sensors.

With the detection device 6 and lateral boundaries 1 a and 1 b of the first lane 1 are detected. In particular, front boundaries 1 c and 1 d, which are at the same time also lateral boundaries of the second roadway 2, are detected in this context.

In the illustrated position of the vehicle 3, in which the vehicle 3 is shown in solid lines, the sensors 6a to 6d and the camera 6e can not detect the roadway 2 laterally of the first roadway 1. In this situation, it is planned in that on a display unit 7 of the vehicle 3 a representation of the vehicle surroundings is shown in a first perspective, namely in a plan view, as shown in FIG. 4. This first illustration 8 thus shows from above the vehicle 3 and also from above the surroundings of this vehicle 3.

In Fig. 2, this position of the vehicle 3 according to the solid line in the illustration in Fig. 1 is shown schematically. As can be seen thereby, none of the sensors 6a and 6b with the detection areas 61 a and 61 b, the second lane 2 side of the first lane 1 detect.

In FIG. 3, a vehicle environment map 9 is shown, in which the vehicle 3 is likewise displayed in a plan view and in which the boundary 1 b of the first roadway 1 detected by the sensors 6 a and 6 b is stored. In this regard, this limit 1 b is also colored, for example, red marked.

Now moves the vehicle 3 in the direction of the second lane 2 and takes the drawn in Fig. 1 front dashed position, it can be seen that the sensors 6a and 6c and / or the camera 4 and the front limits 1 c and 1 d capture and also can see laterally of the first lane 1 in the lane 2 and can detect this. As soon as this has been achieved, that at least one of the sensors 6a to 6d and / or the camera 4 receives such a lateral view into the second lane 2, the display on the display unit 7 changes automatically. In particular, as shown in FIG. 4 no longer displays the first representation 8 with a plan view perspective, but automatically changes to a second representation 10, in which a side view is displayed as representation in a second perspective as image information.

As can be seen from the representation in FIG. 7, it is provided in the exemplary embodiment that the change of the representation takes place in such a way that the first representation 8 is markedly reduced and in particular also rotated by 90 °, and beside that the second representation 10 is significantly larger is shown.

It can also be provided that, when the representation of FIG. 4 changes to FIG. 7, only the second representation 10 is then displayed, in particular over the entire image region of the display unit 7. It can also be provided that not only the first representation 8 is displayed in the situation according to FIG. 4, but additionally also the second representation 10 is displayed, however, clearly reduced in comparison with the first representation 8.

In the illustration according to FIG. 5 it is shown that the vehicle 3 has assumed a position in which the sensor 6a can see beyond the boundary 1b and thus laterally beyond the first roadway 1 into the second roadway 2 and in this respect with the detection area 61 a can detect the lane 2.

The corresponding is possible in particular with the sensor 6c and in particular also with the camera 4.

By the sensors 6a and 6c, which no longer or only minimally detect the boundary 1 b and 1 a, it is thus recognized that virtually the first roadway 1 is completed and an object detection side of the lane 1 on the second lane 2 in particular by the Camera 4 is enabled.

In the vehicle environment map 9 shown in Fig. 6, this is also indicated so that a color change of the adjacent to the right front area of the vehicle 3 takes place, and in this regard, for example, this area is displayed in green. The area following the green area to the rear or below is then still drawn in red, so that in this regard clearly the front boundary 1 c is detected and thus the front end of the first lane 1 on the

Vehicle environment map 9 is visually recognizable.

In particular, it can also be provided that the automatic change of

Representations 8 and 10 on the display unit 7 also takes place in consideration of the vehicle speed and / or a shape of an object possibly detected on the second lane.

In particular, it may be provided that the change of the representations 8 and 10 on the display unit 7 depending on a detection of the limits 1 a to 1 d is performed by the sensors 6 a to 6 d and when the vehicle 3 is in a position in which the Sensors 6a and 6c already detect laterally in the second lane 2, at least the camera 4 then monitors the lane 2 with regard to objects to be observed. If corresponding objects are then detected in this regard, depending on their position and / or shape and / or speed, and preferably depending on a time duration until a possible collision with the Vehicle 3 are generated a warning. In addition or instead of a camera 4, which is then provided for object detection on the roadway 2 at a corresponding position of the vehicle 3, at least one already mentioned radar sensor and / or a lidar device can also be provided.

Claims

claims

1 . A method for displaying image information on a display unit (7) of a vehicle (3), in which an environment of the vehicle (3) with a

Detection device (6) of the vehicle (3) is detected, and in which the vehicle environment in a first representation (8) in a first perspective or in a second representation (10) in a second perspective as image information on the display unit (7) is displayed .

characterized in that

a change of representation (8, 10) automatically takes place when the vehicle (3) is located on a first roadway (1), which opens at an angle in a second roadway (2) and the vehicle (3) in the direction the second roadway (2) moves, and the detection device (6) of the vehicle (3) with its detection area (61 a, 61 b) the second roadway (2) at least laterally the lateral (1 a, 1 b) and front boundaries ( 1 c, 1 d) of the first lane (1) can detect.

2. The method according to claim 1,

characterized in that

when changing the presentation (8, 10) only the respective representation (8, 10) is displayed on the display unit (7) or both representations (8, 10) are displayed and when changing the representation (8, 10) the size of the

Representations (8, 10) are changed relative to each other.

3. The method according to claim 1 or 2

characterized in that

as a perspective of the first representation (8) is a plan view is displayed and as a perspective of the second representation (10) is a side view of

Vehicle environment is displayed.

4. The method according to any one of the preceding claims, characterized in that

the detection device (6) used on the vehicle sensors (6a to 6d) for parking space measurement at least for detecting the boundaries (1 a to 1 d) of the first lane (1) used.

5. The method according to any one of the preceding claims,

characterized in that

the detection device comprises a camera (6e) and / or a radar sensor, by means of which the second roadway (2) is detected with regard to an object recognition when the vehicle (3) has reached a position at which one

Detection laterally of the boundaries (1 a to 1 d) of the first lane (1) is possible.

6. The method according to any one of the preceding claims,

characterized in that

depending on an object detection on the second lane (2) an automatic warning to the driver is generated, in particular depending on a time until a possible collision of the vehicle (3) is generated with the object.

7. The method according to any one of the preceding claims,

characterized in that

the limits (1 a to 1 d) of the first lane (1) are automatically detected.

8. The method according to claim 7,

characterized in that

the limits (1 a to 1 d) are automatically stored and displayed on a vehicle environment map (9).

9. The method according to any one of the preceding claims,

characterized in that

a change of presentation (8, 10) automatically depends on the

Vehicle speed and / or of a form of an object possibly detected on the second lane (2) takes place.

10. Driver assistance device (4), which is designed to carry out a method according to one of the preceding claims.

1 1. Vehicle (3) with a driver assistance device (4) according to claim 10.