Systems and methods for alerting drivers that they have encroached a safety zone of another vehicle

Patent metadata

Field	Value
Publication number	US-9799223-B2
Application number	US-201514962804-A
Country	US
Kind code	B2
Filing date	Dec 8, 2015
Priority date	Dec 8, 2015
Publication date	Oct 24, 2017
Grant date	Oct 24, 2017

Abstract

Methods and systems for a subject vehicle to alert a driver of a secondary vehicle that the secondary vehicle has encroached a safety zone of the subject vehicle or another secondary vehicle. Sensors are configured to identify the location of the secondary vehicle. A controller is in receipt of inputs from the sensors and is configured to determine whether the secondary vehicle has encroached the safety zone of the subject vehicle or another secondary vehicle. A warning system is configured to warn the driver of the secondary vehicle that the secondary vehicle has encroached the safety zone of the subject vehicle or another secondary vehicle. The controller activates the warning system when the controller determines that the secondary vehicle has encroached the safety zone of the subject vehicle or another secondary vehicle.

First claim

What is claimed is:

1. A system for a subject vehicle to alert a driver of a secondary vehicle that the secondary vehicle has encroached a safety zone of the subject vehicle or another secondary vehicle, the system for the subject vehicle comprising:
sensors configured to identify location of the secondary vehicle relative to the subject vehicle when both the subject vehicle and the secondary vehicle are in motion;
a controller in receipt of inputs from the sensors and configured to determine whether the secondary vehicle has encroached the safety zone of the subject vehicle or another secondary vehicle when neither one of the subject vehicle and the secondary vehicle is braking; and
a warning system configured to warn the driver of the secondary vehicle that the secondary vehicle has encroached the safety zone of the subject vehicle or another secondary vehicle;
wherein the controller activates the warning system when the controller determines that the secondary vehicle has encroached the safety zone of the subject vehicle or another secondary vehicle regardless of the relative speeds of the subject vehicle and the secondary vehicle.

2. The system of claim 1 , wherein:
the sensors include at least one of proximity sensors, lane detection sensors, traffic condition sensors, speed sensors, environmental condition sensors, and sensors configured to detect at least one of size and type of the secondary vehicle; and
the sensors include at least one of cameras, radar, sonar, and lidar.

3. The system of claim 1 , wherein the controller sets the safety zone based on at least one of traffic conditions, roadway restrictions, weather, and speed of at least one of the subject vehicle and secondary vehicles.

4. The system of claim 3 , wherein the safety zone is set such that, if encroached, likelihood of a collision increases.

5. The system of claim 1 , wherein the warning system includes at least one of warning lights, a horn, a semantic alert, and a speech tacton alert.

6. The system of claim 5 , wherein the warning lights include external hazard lights.

7. The system of claim 1 , wherein the warning system directs the warning in direction of the encroachment.

8. The system of claim 1 , wherein the warning system is further configured to alert the driver of the subject vehicle that the safety zone of the subject vehicle or secondary vehicle has been encroached, and that the warning system of the subject vehicle has been activated.

9. The system of claim 1 , further comprising a receiver configured to receive traffic information, weather information, road condition information, and obstacle information for use by the controller to set the safety zone; and
wherein the receiver is configured to receive at least one of radio frequency signals and GPS signals.

10. The system of claim 1 , wherein the controller is configured to vary the intensity of the warning generated by the warning system depending on the type of the secondary vehicle encroaching the safety zone of the subject vehicle, and based on whether the secondary vehicle is encroaching the safety zone of another secondary vehicle.

11. A method for a subject vehicle to alert a driver of a secondary vehicle that the secondary vehicle has encroached a safety zone of the subject vehicle or another secondary vehicle, the method comprising:
identifying, with sensors of the subject vehicle, location of the secondary vehicle relative to the subject vehicle when both the subject vehicle and the secondary vehicle are in motion;
determining whether the secondary vehicle has encroached the safety zone of the subject vehicle or another secondary vehicle when neither one of the subject vehicle and the secondary vehicle is braking based on data collected by the sensors; and
warning the driver of the secondary vehicle with a warning system of the subject vehicle that the secondary vehicle has encroached the safety zone of the subject vehicle or another secondary vehicle regardless of the relative speeds of the subject vehicle and the secondary vehicle.

12. The method of claim 11 , wherein the sensors include at least one of proximity sensors, lane detection sensors, traffic condition sensors, speed sensors, environmental condition sensors, and sensors configured to detect at least one of size and type of the secondary vehicle; and
the sensors include at least one of cameras, radar, sonar, and lidar.

13. The method of claim 11 , further comprising setting the safety zone based on at least one of traffic conditions, roadway restrictions, weather, and speed of at least one of the subject vehicle and secondary vehicles.

14. The method of claim 11 , wherein the warning system includes at least one of warning lights, a horn, a semantic alert, and a speech tacton alert;
wherein the warning lights include external hazard lights.

15. The method of claim 11 , further comprising directing the warning in a direction of the encroachment.

16. The method of claim 11 , further comprising alerting the driver of the subject vehicle that the safety zone of the subject vehicle or secondary vehicle has been encroached, and that the warning system of the subject vehicle has been activated.

17. The method of claim 11 , further comprising setting the safety zone based on traffic information received by a receiver of the subject vehicle.

18. The method of claim 11 , further comprising varying intensity of the warning generated by the warning system depending on the type of the secondary vehicle encroaching the safety zone of the subject vehicle, and based on whether the secondary vehicle is encroaching the safety zone of another secondary vehicle.

19. The method of claim 11 , further comprising generating a warning of a first intensity when the secondary vehicle is of a first size, and generating a warning of a second intensity when the secondary vehicle is of a second size;
wherein the second intensity is greater than the first intensity, and the second size is greater than the first size.

20. The method of claim 11 , further comprising determining when two secondary vehicles are merging towards one another with the sensors of the subject vehicle, and using the warning of the subject vehicle to alert drivers of the two secondary vehicles when the safety zones of the two secondary vehicles have been encroached.

Assignees

• Denso Int America Inc

Inventors

• Nespolo Martin
• Zhang Yu
• Krzyzak Jr Thomas

Classifications

• B60Q1/525

  automatically indicating risk of collision between vehicles in traffic or with pedestrians, e.g. after risk assessment using the vehicle sensor data · CPC title

• G08G1/166 Primary

  for active traffic, e.g. moving vehicles, pedestrians, bikes · CPC title

• B60Q5/006

  indicating risk of collision between vehicles or with pedestrians · CPC title

• B60Q1/535

  to prevent rear-end collisions, e.g. by indicating safety distance at the rear of the vehicle · CPC title

• G08G1/096716

  where the received information does not generate an automatic action on the vehicle control · CPC title