Method and device for warning against cross traffic when leaving a parking space

Patent metadata

Field	Value
Publication number	US-2016272115-A1
Application number	US-201314442247-A
Country	US
Kind code	A1
Filing date	Nov 1, 2013
Priority date	Nov 14, 2012
Publication date	Sep 22, 2016
Grant date	—

Abstract

A method for warning the driver of a vehicle against cross traffic when leaving a parking space, wherein the motor vehicle has far-field sensors at least in the region of the rear-end corners for detecting possible cross traffic and lateral near-field sensors for detecting the near surroundings of the vehicle and wherein the warning is generated if at least one of the far-field sensors detects cross traffic. The method surveys the nearby lateral surroundings of the driver's vehicle while leaving the parking space, determines from the results of the near-field detection whether the far-field sensors have a free view of the cross traffic, and generates a notification to the driver if one or both far-field sensors do not have a free view of the cross traffic.

First claim

1 . A method for warning a driver of a first-party vehicle against cross traffic when leaving a parking space, the first-party vehicle having, at least in the region of the rear vehicle corners, long-range sensors for detecting possible cross traffic and lateral short-range sensors for detecting the nearby vehicle environment, the method comprising:
measuring the nearby lateral environment using the short-range sensors to generate a short range-detection when the first-party vehicle is leaving the parking space; detecting possible cross traffic and the nearby vehicle environment using the long-range sensors; and generating a warning if at least one of the long-range sensors detects cross traffic, wherein the results from the short-range detection are used to determine whether the long-range sensors have a clear view of the cross traffic, and an indication is generated for the driver if one or both long-range sensor(s) does not have a clear view of the cross traffic.

2 . The method of claim 1 , wherein the driver is informed of which long-range sensor does not have a clear view of the cross traffic.

3 . The method of claim 1 , wherein the indication of long-range sensors without a clear view is optically presented in a display.

4 . The method of claim 3 , wherein the display generates a representation of the first-party vehicle and its nearby environment such that it is optically represented which long-range sensor does not have a clear view of the cross traffic.

5 . The method of claim 1 , further comprising determining and entering distances to obstacles from the short-range detection in an environment map and evaluating the environment map in the region of the assumed visual contact between the long-range sensors and possible cross traffic.

6 . The method of claim 5 , further comprising the likelihood of when there is visual contact of a blocked long-range sensor is calculated.

7 . The method as of claim 3 , wherein the indication of blocked visual contact is effected by a symbol which is inserted in the representation of the vehicle environment in the region of the blocked long-range sensor.

8 . The method of claim 7 , wherein the indication is removed when the visual blocking of the long-range sensor is removed.

9 . The method of claim 3 , wherein both the blocked long-range sensors and the long-range sensors having visual contact are represented in the display.

10 . A device for carrying out the method for warning a driver of a first-party vehicle against cross traffic when leaving a parking space as claimed in claim 1 , having long-range sensors which are arranged at least in the region of the rear corners of a motor vehicle and detect possible cross traffic, having lateral short-range sensors for sensing the nearby motor vehicle environment and having a warning device for warning against cross traffic, wherein the device has a display which displays which long-range sensor does not have visual contact with the cross traffic.

11 . The device of claim 9 , wherein the device has an apparatus for generating an environment map from the measurement results from the short-range sensors, the likelihood of a clear view of the long-range sensors is determined from the environment map in the region of the assumed visual contact with possible cross traffic.

12 . The method of claim 1 , wherein the method is performed when the first-party vehicle leaves the parking space by reversing from the parking space.

Assignees

• Volkswagen Ag

Inventors

• Max Stephan
• Baumann Peter
• Katzwinkel Reiner

Classifications

• G01S13/931

  of land vehicles · CPC title

• B60Q9/008 Primary

  for anti-collision purposes · CPC title

• G01S2013/9317

  Driving backwards · CPC title

• G01S13/87

  Combinations of radar systems, e.g. primary radar and secondary radar · CPC title

• B60Q9/006 Primary

  using a distance sensor · CPC title