METHOD FOR OPERATING A DRIVER ASSISTANCE SYSTEM AND DRIVER ASSISTANCE SYSTEM

• US 20120239253A1
• Filed: 03/14/2012
• Published: 09/20/2012
• Est. Priority Date: 03/16/2011
• Status: Abandoned Application

• Current Assignee: GM Global Technology Operations LLC (General Motors Company)
• Original Assignee: GM Global Technology Operations LLC (General Motors Company)
• Inventors: SCHMIDT, Gerald, ARMBRUST, Markus
• Application Number:
  US13/419,560
• Publication Number:
  US 20120239253A1
• Time in Patent Office: Days
• US Class Current: 701/41
• CPC Class Codes: B60T 7/22 initiated by contact of vehicle, e.g. bumper, with an external object, e.g. another vehicle , or by means of contactless obstacle detectors mounted on the vehicle
• CPC Class Codes: B60W 2050/0088 Adaptive recalibration
• CPC Class Codes: B60W 2554/00 Input parameters relating to objects
• CPC Class Codes: B60W 2554/406 Traffic density
• CPC Class Codes: B60W 2554/804 Relative longitudinal speed
• CPC Class Codes: B60W 30/12 Lane keeping
• CPC Class Codes: B60W 40/04 Traffic conditions
• CPC Class Codes: B60W 50/0098 Details of control systems ensuring comfort, safety or stability not otherwise provided for
• CPC Class Codes: B60W 50/14 Means for informing the driver, warning the driver or prompting a driver intervention
• CPC Class Codes: B62D 15/025 Active steering aids, e.g. helping the driver by actively influencing the steering system after environment evaluation B62D1/28 takes precedence
• CPC Class Codes: B62D 15/0265 Automatic obstacle avoidance by steering
• CPC Class Codes: G08G 1/166 for active traffic, e.g. moving vehicles, pedestrians, bikes
• CPC Class Codes: G08G 1/167 Driving aids for lane monitoring, lane changing, e.g. blind spot detection

Abstract

A method is provided for operating a driver assistance system of a motor vehicle that includes, but is not limited to determining a parameter characterizing a traffic density in an area of the environment of the motor vehicle, determining a degree of the traffic density based on the parameter, and adapting a threshold value of the driver assistance system for an automatic actuation of at least one element of the motor vehicle, such as a braking apparatus, a drive apparatus, a steering apparatus, and a warning apparatus, as a function of the determined degree of traffic density. Additionally or alternatively, a degree of actuation of the at least one element is adapted as a function of the determined degree of the traffic density.

Claims

1. A method for operating a driver assistance system of a motor vehicle, comprising:

determining a parameter characterizing a traffic density in an area of an environment of the motor vehicle;

determining a degree of the traffic density based at least in part on the parameter;

adapting a threshold value for an automatic actuation of an element of the motor vehicle; and

adapting a degree of actuation of the element as a function of the degree of the traffic density.

2. The method according to claim 1, wherein the element is a braking apparatus.

3. The method according to claim 1, wherein the element is a drive apparatus.

4. The method according to claim 1, wherein the element is a steering apparatus.

5. The method according to claim 1, wherein the element is a warning apparatus.

6. The method according to claim 1, wherein the determining the parameter includes comprises a number of motor vehicles on a pre-determined path unit.

7. The method according to claim 1, wherein the determining the parameter comprises determining an average speed of other motor vehicles relative to the motor vehicle.

8. The method according to claim 1, wherein the driver assistance system is an emergency braking system.

9. The method according to claim 1, wherein the driver assistance system is a braking assistant.

10. The method according to claim 1, wherein the driver assistance system is a first collision warning system.

11. The method according to claim 5, wherein the adapting the threshold value of the driver assistance system for the automatic actuation of the element comprises generating a warning message with the warning apparatus at a later time when the degree of the traffic density is high than when the degree of the traffic density is low.

12. The method according to claim 1, wherein the driver assistance system is a lane departure warning system.

13. The method according to claim 1, wherein the driver assistance system is a second collision warning system.

14. The method according to claim 1, wherein the adapting the degree of actuation comprises adapting a tolerance limit of a regulating difference for distance regulation.

15. The method according to claim 1, further comprising determining a category of a road being traveled upon by the motor vehicle,

wherein the adapting the threshold value is additionally made as a second function of the category of the road.

16. A computer readable medium embodying a computer program product, said computer program product comprising:

an operating program for operating a driver assistance system of a motor vehicle, the operating program configured to;

determine a parameter characterizing a traffic density in an area of an environment of the motor vehicle;

determine a degree of the traffic density based at least in part on the parameter;

adapting a threshold value for an automatic actuation of an element of the motor vehicle; and

adapt a degree of actuation of the element as a function of the degree of the traffic density.

17. The method according to claim 16, wherein the operating program is further configured to determine an average speed of other motor vehicles relative to the motor vehicle.

18. A driver assistance system for a motor vehicle, comprising:

a first determination apparatus configured to determine a parameter characterizing a traffic density in an area of an environment of the motor vehicle;

a second determination apparatus configured to determine a degree of the traffic density based on the parameter; and

an adaptation apparatus configured to adapt a threshold value of the driver assistance system for an automatic actuation of an element of the motor vehicle as a function of the degree of the traffic density.

19. The driver assistance system according to claim 18, wherein the adaptation apparatus is a braking apparatus.

20. The driver assistance system according to claim 18, wherein the adaptation apparatus is a warning apparatus.