Highway Merge Assistant and Control

• US 20130099911A1
• Filed: 10/20/2011
• Published: 04/25/2013
• Est. Priority Date: 10/20/2011
• Status: Active Grant

• Current Assignee: GM Global Technology Operations LLC (General Motors Company)
• Original Assignee: GM Global Technology Operations LLC (General Motors Company)
• Inventors: Litkouhi, Bakhtiar Brian, Mudalige, Upali Priyantha
• Granted Patent: US 8,810,431 B2
• Time in Patent Office: Days
• US Class Current: 340/438
• CPC Class Codes: G08G 1/163 involving continuous checking
• 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 vehicle merge control system includes a host communication system in a host vehicle for exchanging vehicle position and kinematics data with a remote communication system in at least one remote vehicle. A vehicle host processor determines respective positions and paths of travel of the at least one remote vehicle and the host vehicle. The host processor determines a time to intersect based on the positions and predicted paths of travel between the host vehicle and remote vehicle during a merging maneuver. A host vehicle is configured to transmit a host vehicle intention message from the host communication system to the remote communication system for negotiating a merging position between the host vehicle and the at least one remote vehicle. The host vehicle executes the merging maneuver using the negotiated merging position.

Claims

1. A vehicle merge control system comprising:

a host communication system in a host vehicle for exchanging vehicle position and kinematics data with a remote communication system in at least one remote vehicle; and

a vehicle host processor for determining respective positions and paths of travel of the at least one remote vehicle and the host vehicle, the host processor determining a time to intersect based on the positions and predicted paths of travel between the host vehicle and remote vehicle during a merging maneuver;

wherein a host vehicle is configured to transmit a host vehicle intention message from the host communication system to the remote communication system for negotiating a merging position between the host vehicle and the at least one remote vehicle, and wherein the host vehicle executes the merging maneuver using the negotiated merging position.

2. The vehicle merge control system of claim 1 further comprising a merge alert indicator in the host vehicle for alerting a driver of an upcoming merging event with the at least one remote vehicle, and wherein the driver manually establishes the negotiated merging position.

3. The vehicle merge control system of claim 2 wherein the driver manually establishing the negotiated merging position includes the driver conveying in the host vehicle intention message a driver'"'"'s desire to merge behind the remote vehicle.

4. The vehicle merge control system of claim 2 wherein the driver manually establishing the negotiated merging position includes the driver conveying in the host vehicle intention message a driver'"'"'s desire to merge in ahead of the remote vehicle.

5. The vehicle merge control system of claim 2 wherein the driver manually executes the merging maneuver using the negotiated merging position in response to an acceptance of the merging position by the remote vehicle.

6. The vehicle merge control system of claim 1 wherein the host processor automatically determines a desired merging position based on the positions and paths of travel of the host vehicle and at least one remote vehicle.

7. The vehicle merge control system of claim 6 wherein the time-to-intersect between the host vehicle and the remote vehicle is based on whether the host vehicle and the remote vehicle will collide within a respective window of time, wherein the predicted collision time window is represented by the following formula:

(TTI−

T_d)<

t<

(TTI+T_d)

wherein TTI is a time-to-intersect motion paths of the respective vehicles, T_d is an estimated variation of the time-to-intersect based on an uncertainty of estimating vehicle dynamics, vehicle positioning, traffic, and environmental conditions.

8. The vehicle merge control system of claim 6 wherein merging position of the host vehicle is based on a determination of a time-to-arrival at a predicted merging location.

9. The vehicle merge control system of claim 8 wherein processor determines that the host vehicle will merge ahead of the remote vehicle based on the host vehicle being first to arrive at the predicted merging location relative to the remote vehicle.

10. The vehicle merge control system of claim 8 wherein processor determines that the host vehicle will merge behind of the remote vehicle based on the host vehicle being last to arrive at the predicted merging location relative to the remote vehicle.

11. The vehicle merge control system of claim 8 wherein processor determines that the host vehicles merging position based on a position of other remote vehicles predicted location relative to the host vehicle and the remote vehicle at the predicted merging location.

12. The vehicle merge control system of claim 2 wherein the host vehicle autonomously changes speed to for executing the merging maneuver.

13. The vehicle merge control system of claim 2 wherein the host vehicle autonomously changes lanes for executing the merging maneuver.

14. The vehicle merge control system of claim 1 wherein the host communication system exchanges path history and projected travel path data with the remote communication system, wherein the path history and projected travel path data is utilized by the host processor for determining a time to intersect during the merging maneuver.

15. The vehicle merge control system of claim 14 wherein the host processor determines whether the host vehicle is on a merging onset.

16. The vehicle merge control system of claim 15 wherein the host processor utilizes the path history and projected travel path data of the host vehicle and remote vehicle for determining whether the host vehicle is on a merging onset.

17. The vehicle merge control system of claim 15 wherein the host processor utilizes the range data and range rate of change data between the host vehicle and remote vehicle for determining whether the host vehicle is on a merging onset.

18. The vehicle merge control system of claim 15 wherein the host processor utilizes heading course changes between the host vehicle and remote vehicle for determining whether the host vehicle is on a merging onset.

19. The vehicle merge control system of claim 15 wherein the host processor utilizes navigation maps for determining whether the host vehicle is on a merging onset.

20. The vehicle merge control system of claim 1 the host communication system is part of a vehicle-to-vehicle communication system.

21. The vehicle merge control system of claim 1 wherein the host communication system is part of an infrastructure-to-vehicle communication system.

22. The vehicle merge control system of claim 1 wherein the host communication system is a combination of a vehicle-to-vehicle communication system and an infrastructure-to-vehicle communication system.