MAP ENHANCED POSITIONING SENSOR SYSTEM

• US 20100121518A1
• Filed: 11/11/2008
• Published: 05/13/2010
• Est. Priority Date: 11/11/2008
• Status: Abandoned Application

• Current Assignee: Visteon Global Technologies Incorporated (Visteon Corporation)
• Original Assignee: Visteon Global Technologies Incorporated (Visteon Corporation)
• Inventors: Freeman, Kenneth Aaron, Tiernan, Timothy Arthur, Ibrahim, Faroog Abdel-kareem
• Application Number:
  US12/268,932
• Publication Number:
  US 20100121518A1
• Time in Patent Office: Days
• US Class Current: 701/26
• CPC Class Codes: G01C 21/165 combined with non-inertial navigation instruments
• CPC Class Codes: G01C 21/30 Map- or contour-matching

Abstract

An enhanced positioning system includes a vehicle positioning system adapted to transmit an output representing at least one of a current position, a future position, and a path of a vehicle and at least one module in communication with the vehicle positioning system, wherein the at least one module obtains data and information related to at least one of a road attribute, a vehicle dynamics, and a vehicle position, analyzes the data and information, and modifies the output of the vehicle positioning system in response to the analysis of the data and information.

Claims

1. An enhanced positioning system comprising:

a vehicle positioning system adapted to transmit an output representing at least one of a current position, a future position, and a path of a vehicle; and

at least one module in communication with the vehicle positioning system, wherein the at least one module obtains data and information related to at least one of a road attribute, a vehicle dynamics, and a vehicle position, analyzes the data and information, and modifies the output of the vehicle positioning system in response to the analysis of the data and information.

2. The enhanced positioning system according to claim 1, wherein the vehicle positioning system includes a map database for providing map data to the vehicle positioning system and the at least one module.

3. The enhanced positioning system according to claim 1, wherein the vehicle positioning system includes at least one of a Global Position System for determining a position of the vehicle in a pre-determined coordinate system and a vehicle sensor for providing data related to the vehicle dynamics.

4. The enhanced positioning system according to claim 1, wherein the vehicle positioning system includes a map-matching module for determining a position of the vehicle on a pre-determined map.

5. The enhanced positioning system according to claim 1, wherein the vehicle positioning system includes a look-ahead module which determines a candidate list of probable driving paths and determines the most likely path of the vehicle based on the candidate list.

6. The enhanced positioning system according to claim 1, wherein the at least one module is a vision sensing module which detects the surrounding environment of the vehicle and provides data and information related to the surrounding environment of the vehicle to other components of the vehicle.

7. The enhanced positioning system according to claim 1, wherein the at least one module is a modified positioning estimator which determines a refined vehicle position on the road including in-lane accuracy.

8. The enhanced positioning system according to claim 1, wherein the at least one module is a look-ahead estimator which extrapolates a modified vehicle path, including in-lane accuracy, and generates a predicted future vehicle position.

9. The enhanced positioning system according to claim 1, wherein the data and information includes at least one of a lane center, a lane width, a current travelling lane, a vehicle position in the travelling lane relative to the lane center, a vehicle yaw attitude relative the lane center, a lane boundary type, a number of lanes in the direction of travel, a scene lateral tracking, a prediction of a lane change, and whether the vehicle is executing a lane change.

10. An enhanced positioning system comprising:

a vehicle positioning system adapted to transmit an output representing at least one of a current position, a future position, and path of a vehicle, wherein the vehicle positioning system includes at least one of a map database for providing pre-determined map data, a Global Positioning System for determining the position of the vehicle in a pre-determined coordinate system, a vehicle sensor for providing data related to vehicle dynamics, a map-matching module for determining a vehicle positioning module on a pre-determined map, and a look-ahead module which determines a candidate list of probable driving paths and from the candidate list determines the most likely path of the vehicle; and

at least one module in communication with the vehicle position system, wherein the at least one module obtains data and information related to at least one of a road attribute, a vehicle dynamics, and a vehicle position, analyzes the data and information, and modifies the output of the vehicle positioning system in response to the analysis of the data and information.

11. The enhanced positioning system according to claim 10, wherein the at least one module is a vision sensing module which detects the surrounding environment of the vehicle.

12. The enhanced positioning system according to claim 11, wherein the vision sensing module detects at least one of a lane change, a vehicle position relative to a lane center, a lane boundary or marker type, a number of lanes in the travelling direction, and a scene tracking.

13. The enhanced positioning system according to claim 10, wherein the at least one module is a modified positioning estimator which determines a refined vehicle position on the road including in-lane accuracy.

14. The enhanced positioning system according to claim 10, wherein the at least one module is a look-ahead estimator which extrapolates a modified vehicle path, including in-lane accuracy, and generates a predicted vehicle position at a pre-determined time.

15. The enhanced positioning system according to claim 14, wherein the look-ahead estimator generates at least one of an instantaneous (current) vehicle position, a future vehicle position at a predetermined point in the future, a future vehicle position at a requested time in the future, and a plurality of future vehicle positions at predetermined times in the future for multiple paths.

16. The enhanced positioning system according to claim 10, wherein the data and information includes at least one of a lane center, a lane width, a current travelling lane, a vehicle position in the travelling lane relative to the lane center, a vehicle yaw attitude relative the lane center, a lane boundary type, a number of lanes in the direction of travel, a scene lateral tracking, a prediction of a lane change, and whether the vehicle is executing a lane change.

17. A method for determining a vehicle position and travelling path, the method comprising the steps of:

providing an output representing at least one of a current position, a future position, and a travelling path of a vehicle;

evaluating the output in response to data and information relating to at least one of a road attribute, a vehicle dynamics, and a vehicle position;

modifying the output in response to the data and information; and

generating at least one of an instantaneous vehicle position with lane position, a future vehicle position at a predetermined point in the future, a future vehicle position at a requested time in the future, and a plurality of future vehicle positions at predetermined times in the future for multiple paths in response to the modified output.

18. The method according to claim 17, wherein the output is generated by a vehicle positioning system including at least one of a map database for providing pre-determined map data, a Global Positioning System for determining the position of the vehicle in a pre-determined coordinate system, a vehicle sensor for providing data related to vehicle dynamics, a map-matching module for determining a vehicle positioning module on a pre-determined map, and a look-ahead module which determines a candidate list of probable driving paths and from the candidate list determines the most likely path of the vehicle.

19. The method according to claim 18, wherein the output is modified by at least one module adapted to obtain the data and information, analyze the data and information and modify the output in response to the analysis of the data and information.

20. The method according to claim 18, wherein the data and information includes at least one of a lane center, a lane width, a current travelling lane, a vehicle position in the travelling lane relative to the lane center, a vehicle yaw attitude relative the lane center, a lane boundary type, a number of lanes in the direction of travel, a scene lateral tracking, a prediction of a lane change, and whether the vehicle is executing a lane change.