Methods and systems for facilitating vehicle lane change

• US 9,620,019 B1
• Filed: 11/03/2015
• Issued: 04/11/2017
• Est. Priority Date: 11/03/2015
• Status: Active Grant

• Current Assignee: DENSO Corporation, Denso International America Incorporated (DENSO Corporation)
• Original Assignee: DENSO Corporation, Denso International America Incorporated (DENSO Corporation)
• Inventors: Cheng, Mengxue
• Primary Examiner(s): Paige, Tyler
• Application Number:
  US14/931,370
• Publication Number:
  US 20170124879A1
• Time in Patent Office: 525 Days
• Field of Search: 701 41, 340435, 348148
• CPC Class Codes: B60Q 9/008 for anti-collision purposes
• CPC Class Codes: B60W 50/14 Means for informing the driver, warning the driver or prompting a driver intervention
• CPC Class Codes: B62D 15/0255 Automatic changing of lane, e.g. for passing another vehicle
• CPC Class Codes: B62D 15/0265 Automatic obstacle avoidance by steering
• CPC Class Codes: G01S 19/13 Receivers
• CPC Class Codes: G01S 5/0072 Transmission between mobile stations, e.g. anti-collision systems
• 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 for informing a driver of a subject vehicle that the subject vehicle and a secondary vehicle may be entering a target lane between the vehicles from opposite sides of the target lane. The method includes identifying location of the subject vehicle relative to the secondary vehicle when the subject vehicle and the secondary vehicle are on opposite sides of the target lane, and when at least one of the subject vehicle and the secondary vehicle is moving into the target lane. The method also includes alerting the driver of the subject vehicle of the secondary vehicle when the subject vehicle and the secondary vehicle are on opposite sides of the target lane, and when a gap between the subject vehicle and the secondary vehicle is decreasing. The method further includes steering the subject vehicle away from the secondary vehicle if the gap is less than a predetermined distance.

Claims

1. A method for informing a driver of a subject vehicle that the subject vehicle and a secondary vehicle may be entering a target lane between the subject vehicle and the secondary vehicle from opposite sides of the target lane, the method comprising:

identifying a location of the subject vehicle relative to the secondary vehicle using a sensor when the subject vehicle and the secondary vehicle are on opposite sides of the target lane, and when at least one of the subject vehicle and the secondary vehicle is moving into the target lane;

alerting the driver of the subject vehicle of the secondary vehicle using a controller when the subject vehicle and the secondary vehicle are on opposite sides of the target lane, and when a gap between the subject vehicle and the secondary vehicle is decreasing; and

alerting the driver of the subject vehicle that a turn signal of the secondary vehicle has been activated, the turn signal indicating an intent of the secondary vehicle to enter the target lane.

2. The method of claim 1, further comprising identifying the location of the subject vehicle relative to the secondary vehicle with a sensor mounted to the subject vehicle.

3. The method of claim 1, further comprising identifying the location of the subject vehicle relative to the secondary vehicle with at least one of a camera and radar mounted to the subject vehicle.

4. The method of claim 1, further comprising alerting the driver of the subject vehicle with at least one of a visual alert, an audible alert, and haptic feedback.

5. The method of claim 1, further comprising steering the subject vehicle away from the secondary vehicle if the gap is less than the predetermined distance.

6. The method of claim 1, further comprising alerting the driver of the subject vehicle of the secondary vehicle only when the turn signal of the subject vehicle indicating intent to enter the target lane is activated.

7. The method of claim 1, further comprising steering the subject vehicle away from the secondary vehicle using a lane change assist system.

8. The method of claim 1, further comprising steering the subject vehicle away from the secondary vehicle if the gap is less than a predetermined distance.

9. A system for informing a driver of a subject vehicle that the subject vehicle and a secondary vehicle may be entering a target lane between the subject vehicle and the secondary vehicle from opposite sides of the target lane, the system comprising:

a controller;

at least one sensor of the subject vehicle in communication with the controller, the at least one sensor being configured to identify a location of the subject vehicle relative to the secondary vehicle when the subject vehicle and the secondary vehicle are on opposite sides of the target lane, and when at least one of the subject vehicle and the secondary vehicle is moving into the target lane;

an alert system in communication with the controller, the alert system configured to alert the driver of the subject vehicle of the secondary vehicle when the subject and secondary vehicles are on opposite sides of the target lane, and when a gap between the subject and secondary vehicles is decreasing;

the at least one sensor is configured to identify activation of a turn signal of the secondary vehicle indicating intent to move the secondary vehicle into the target lane.

10. The system of claim 9, wherein the at least one sensor includes at least one of radar and a camera.

11. The system of claim 9, wherein GPS coordinates are used to identify location of the subject vehicle relative to the secondary vehicle.

12. The system of claim 9, wherein the alert system is configured to alert the driver of the subject vehicle that the turn signal of the secondary vehicle has been activated.

13. The system of claim 9, wherein the at least one sensor is configured to identify that the secondary vehicle is being steered into the target lane.

14. The system of claim 9, wherein the lane change assist system is configured to direct the subject vehicle away from the secondary vehicle by turning a steering wheel of the subject vehicle.

15. The system of claim 9, wherein the lane change assist system is configured to direct the subject vehicle away from the secondary vehicle by selectively braking wheels of the subject vehicle.

16. The system of claim 9, wherein the alert system is at least one of a visual alert, an audible alert, and a haptic alert.

17. The system of claim 9, wherein the at least one sensor activates only when the turn signal of the subject vehicle is activated indicating that the subject vehicle intends to enter the target lane.

18. The system of claim 9, further comprising a secondary vehicle alert system configured to generate an alert in the secondary vehicle when the gap is less than the predetermined distance.

19. The system of claim 9, wherein a lane change assist system configured to direct the subject vehicle away from the secondary vehicle when the gap is less than a predetermined distance.

20. A system for informing a driver of a subject vehicle that the subject vehicle and a secondary vehicle may be entering a target lane between the subject vehicle and the secondary vehicle from opposite sides of the target lane, the system comprising:

a controller;

at least one sensor of the subject vehicle in communication with the controller, the at least one sensor being configured to identify a location of the subject vehicle relative to the secondary vehicle when the subject vehicle and the secondary vehicle are on opposite sides of the target lane, and when at least one of the subject vehicle and the secondary vehicle is moving into the target lane;

an alert system in communication with the controller, the alert system configured to alert the driver of the subject vehicle of the secondary vehicle when the subject and secondary vehicles are on opposite sides of the target lane, and when a gap between the subject and secondary vehicles is decreasing;

wherein

the alert system is configured to distinguish between whether the secondary vehicle is in the target lane or on a side of the target lane opposite to the subject vehicle.

21. The system of claim 20, wherein a lane change assist system configured to direct the subject vehicle away from the secondary vehicle when the gap is less than a predetermined distance.