DE102018006607A1 - Method and system for facilitating the entry of a vehicle into an intersection - Google Patents

Abstract

The invention relates to a method for facilitating a vehicle entering an intersection, in which the intersection (27) is monitored for approaching vehicles (29, 31). In a method in which a collision risk is prevented with entering cross traffic, a cross traffic entering from the left and / or right into the intersection (27) is simultaneously monitored by the vehicle (3) entering the intersection (27).

Description

The invention relates to a method for facilitating a retraction of a vehicle in an intersection, in which the intersection is monitored for approaching vehicles, as well as a system for carrying out the method.

From the DE 100 36 363 A1 is a retractable and adjustable safety mirror for motor vehicles are known which have a long vehicle stem. This safety mirror is adjustable from the driver's position via an operating element at an angle to the driver. The mirror is installed in the front of the center of the hood. The disadvantage here is that the driver must pivot the mirror in the respective direction in order to monitor a cross-traffic left and right of its junction in the intersection.

The object of the invention is to provide a method and a system for facilitating a retraction of a vehicle in an intersection, which allow reliable monitoring of cross traffic in the intersection.

The invention results from the features of the independent claims. Advantageous developments and refinements are the subject of the dependent claims. Other features, applications and advantages of the invention will become apparent from the following description, as well as the explanation of embodiments of the invention, which are illustrated in the figures.

The object is achieved by a method in that a cross traffic entering from left and right into the intersection is simultaneously monitored by the vehicle entering the intersection. As a result of the simultaneous monitoring, approximate vehicles of the transverse traffic are recognized in good time, so that the driving behavior of the entering vehicle can be adapted to this cross traffic.

Advantageously, the transverse traffic entering the intersection from the left and / or right is evaluated with regard to its distance from the intersection and / or its speed, and a risk of collision with the vehicle entering the intersection is checked. Thus, it can be decided in good time either by the driver or automatically by the vehicle itself, whether the vehicle should enter the intersection. At the same time an accident risk is reduced.

In one embodiment, upon detection of a risk of collision of the transverse traffic with the vehicle entering the intersection, the entry into the intersection is automatically prevented. This can be done simply by an automatic actuation of the braking system of the vehicle to prevent this from continuing.

As an alternative to the automatic brake intervention in the vehicle, a warning signal can be output in the interior of the vehicle entering upon detection of a risk of collision. With the help of this warning signal, the attention of the driver of the entering vehicle is directed to the dangerous situation and thus influences the driving behavior of the driver.

A development of the invention relates to a system for facilitating a retraction of a vehicle in an intersection, comprising a vehicle, at the front of which a unit for monitoring a crossing approaching cross traffic is arranged. In a system in which the hazardous situation is reduced by the cross traffic, the unit has at least two radar sensors designed to simultaneously monitor cross traffic approaching the intersection from opposite directions, the unit being connected to an evaluation unit for detecting a risk of collision upon detection of cross traffic is. Thus, at the same time the cross traffic approaching the incoming vehicle from the left and from the right, can be observed and thus a potential accident risk can be reduced. The system is particularly applicable to poor visibility intersections and allows safe entry and exit from the intersection. By means of this system even very narrow vehicles, such as motorcycles, can be detected, as well as inadequately or not illuminated vehicles in the dark. The driver can thus be displayed at any time, when a safe exit in the desired direction is possible.
Advantageously, the evaluation unit is coupled to a warning device for outputting an optical and / or acoustic warning signal in the vehicle entering the vehicle upon detection of the risk of collision. As a warning device can be used in the vehicle existing speakers or displays, whereby the cost of the system can be reduced.
In a further embodiment, the evaluation unit is connected to a brake system of the vehicle for triggering a braking process in the detection of the risk of collision. This automatically prevents the vehicle from moving further when cross traffic enters the intersection.

In a particularly simple embodiment, the at least two wheel sensors are combined in a radar module. This simplifies the installation of radar sensors, since only one technical unit must be installed.

In a variant, the radar module is fastened via a pivotable carrier element on the front side of the vehicle. As a result, by pivoting the radar module with the radar sensors, the system can also monitor intersection areas whose roads do not intersect at an angle of 90 °.

Further advantages, features and details will become apparent from the following description in which - where appropriate, with reference to the drawings - at least one embodiment is described in detail. Described and / or illustrated features may form the subject of the invention itself or in any meaningful combination, optionally also independent of the claims, and in particular may also be the subject of one or more separate application / s. The same, similar and / or functionally identical parts are provided with the same reference numerals.

• 1 ein Ausführungsbeispiel des erfindungsgemäßen Systems,
• 2 ein Ausführungsbeispiel des erfindungsgemäßen Verfahrens.

Show it:

• 1 an embodiment of the system according to the invention,
• 2 an embodiment of the method according to the invention.

In 1 is an embodiment of the system according to the invention 1 represented, which is a vehicle 3 includes. Near the front of the vehicle 3 is a radar module 5 arranged, which two radar sensors 7 . 9 contains. The radar module 5 is about a support element 11 , which is designed to be rotatable, above the bumper 13 attached to the vehicle.

The sensitive surfaces 15 . 17 the two radar sensors 7 . 9 inside the radar module 5 are arranged facing in opposite directions. Due to this arrangement of sensitive surfaces 15 . 17 can the one radar sensor 7 on entering an intersection, the cross traffic approaching from the left, approaching the intersection, while the second radar sensor 9 monitors the cross traffic approaching from the right, approaching the intersection. Both radar sensors 7 . 9 are with an evaluation unit 19 in the motor vehicle 3 connected, in turn, with a display 21 and a speaker 23 are coupled. At the same time is the evaluation circuit 19 with a braking system 25 of the vehicle 3 connected.

In 2 an embodiment of the method according to the invention is shown. That in connection with 1 described vehicle 3 approaching a crossroads 27 into each of which a street from the left and a street from the right opens. The vehicle 3 want to be at this intersection 27 turn left. When entering the intersection 27 becomes the radar module 5 with the two radar sensors 7 . 9 automatically extended, leaving the radar sensor 7 the cross traffic of the left road and the second radar sensor 9 can observe the cross traffic in the right street. Capture the radar sensors 7 . 9 with their sensitive surfaces 15 . 17 a vehicle 29 . 31 , this information is sent to the evaluation unit 19 passed. The evaluation unit 19 detects the respective distance or the speed with which the vehicle 29 respectively. 31 in the intersection 27 incoming vehicle 3 approaches. It is determined that there is a risk of collision if the vehicle 3 at the current time turns left, so gives the evaluation unit 19 an intervention signal to the brake system 25 of the incoming vehicle 3 out, allowing a driving off of the vehicle 3 is automatically prevented. Only with calculated collision-free exit through the evaluation unit 19 will the braking system 25 released and a start of the vehicle 3 allows. At the same time, the display 21 and / or the speaker 23 a warning signal issued to the driver to alert him to the danger situation. If the warning signal is terminated, the driver is informed that there is a safe entrance to the intersection 27 is possible.

Although the invention has been further illustrated and explained in detail by way of preferred embodiments, the invention is not limited by the disclosed examples, and other variations can be derived therefrom by those skilled in the art without departing from the scope of the invention. It is therefore clear that a multitude of possible variations exists. It is also to be understood that exemplified embodiments are really only examples that are not to be construed in any way as limiting the scope, applicability, or configuration of the invention. Rather, the foregoing description and description of the figures enable one skilled in the art to practice the exemplary embodiments, and those of skill in the knowledge of the disclosed inventive concept may make various changes, for example as to the function or arrangement of particular elements recited in an exemplary embodiment, without Protection area defined by the claims and their legal equivalents, such as further explanations in the description.

LIST OF REFERENCE NUMBERS

1

system

3

vehicle

5

radar module

7

radar sensor

9

radar sensor

11

support element

13

bumper

15

sensitive area

17

sensitive area

19

evaluation

21

display

23

speaker

25

braking system

27

crossing

29

vehicle

31

vehicle

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 10036363 A1 [0002]

Claims (9)

Method for facilitating a vehicle entering an intersection, in which the intersection (27) is monitored for approaching vehicles (29, 31), characterized in that - a cross traffic entering from the left and / or right into the intersection (27) is simultaneously monitored by the vehicle (3) entering the intersection (27). - A monitoring by means of a vehicle-mounted radar module (5). - The on the vehicle (3) mounted radar module (5) via an extendable and / or pivotable support member (11) is fixed to the front of the vehicle (3). Method according to Claim 1 , characterized in that in the intersection (27) from the left and / or right entering cross traffic is evaluated in terms of its distance from the intersection (27) and / or its speed and a risk of collision with the in the intersection (27) entering vehicle (3 ) is checked. Method according to Claim 2 , characterized in that upon detection of a risk of collision of the transverse traffic with the entering into the intersection (27) vehicle (3) the retraction of the vehicle (3) in the intersection (27) is automatically prevented. Method according to Claim 3 , characterized in that the retraction of the vehicle (3) in the intersection (27) is prevented automatically by a braking intervention. Method according to at least one of the preceding claims, characterized in that a warning signal is emitted in the interior of the entering vehicle (3) when a collision hazard is detected. System for facilitating the entry of a vehicle into an intersection, comprising a vehicle at the front of which a unit (7, 9) is arranged to observe a cross traffic approaching the intersection (27), characterized in that the unit comprises at least two for simultaneous monitoring a radar sensors (7, 9) detecting cross traffic from opposite directions to the intersection (27), wherein the unit is connected to an evaluation unit (19) for determining a risk of collision upon detection of the transverse traffic. System after Claim 6 , characterized in that the evaluation unit (19) with a warning device (21, 23) for outputting an optical and / or acoustic warning signal in the incoming vehicle (3) is coupled upon detection of the risk of collision. System after Claim 6 or 7 , characterized in that the evaluation unit (19) is connected to a brake system (25) of the vehicle (3) for triggering a braking operation upon detection of the risk of collision. System after Claim 6 . 7 or 8th , characterized in that the at least two radar sensors (7, 9) are combined in a radar module (5).

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