NAVIGATION SYSTEM CONTROLLED TURN SIGNALS

• US 20120271510A1
• Filed: 04/21/2011
• Published: 10/25/2012
• Est. Priority Date: 04/21/2011
• Status: Active Grant

• Current Assignee: Continental Automotive Systems, Inc. (Continental AG)
• Original Assignee: Continental Automotive Systems, Inc. (Continental AG)
• Inventors: Seymour, Shafer, Gee, Robert
• Granted Patent: US 8,498,778 B2
• Time in Patent Office: Days
• US Class Current: 701/36
• CPC Class Codes: B60Q 1/346 with automatic actuation
• CPC Class Codes: B60Q 1/46 for giving flashing caution signals during drive, other than signalling change of direction, e.g. flashing the headlights or hazard lights
• CPC Class Codes: B60Q 1/52 for indicating emergencies
• CPC Class Codes: G01C 21/3602 Input other than that of destination using image analysis, e.g. detection of road signs, lanes, buildings, real preceding vehicles using a camera

Abstract

A turn signal control system for use with a right turn signal and a left turn signal of a motor vehicle and a vehicle navigation system is provided. The turn signal system includes a processor configured to be operably coupled to the vehicle navigation system. The processor is configured to receive map data and route data from the vehicle navigation system. The processor is configured to determine a turn zone of the vehicle based on a set of criteria. A turn signal controller is operably coupled to the processor and configured to activate one of the right and left turn signals when the vehicle is in the turn zone. A method of controlling a right and left turn signal is also provided.

Claims

1. A turn signal control system for use with a right turn signal and a left turn signal of a motor vehicle and a vehicle navigation system, the turn signal control system comprising:

a processor configured to be operably coupled to the vehicle navigation system, the processor configured to receive map data and route data from the vehicle navigation system, the map data including positions of side roads, the processor being configured to determine a turn zone of the vehicle based on a set of criteria, the set of criteria including the route data and the map data; and

a turn signal controller operably coupled to the processor and configured to activate one of the right and left turn signals when the vehicle is in the turn zone.

2. The turn signal control system of claim 1, the processor configured to be operably coupled to a vehicle speed data gatherer, the processor configured to receive speed data from the vehicle speed data gatherer, the set of criteria for determining the turn zone including the speed data.

3. The turn signal control system of claim 2, the processor configured to be operably coupled to a dynamic data gatherer, the processor configured to receive dynamic data including at least one of general traffic information, road closure information, hazard information, and weather information from the dynamic data gatherer, the set of criteria for determining the turn zone including the dynamic data.

4. The turn signal control system of claim 3, the processor configured to be operably coupled to an image-collecting device, the processor configured to receive image information related to images outside the vehicle from the image-collecting device, the image information including at least one of visibility information, visible traffic information, presence of obstacles, and presence of road signs, the set of criteria for determining the turn zone including the image information.

5. The turn signal control system of claim 1, wherein the turn zone is defined as a position in which the vehicle is approaching a turn, the turn zone having a first predetermined length when the side roads are closer to each other than a predetermined threshold distance, the turn zone having a second predetermined length when the side roads are farther apart than the predetermined threshold distance, the first and second predetermined lengths being unequal.

6. The turn signal control system of claim 5, wherein the first predetermined length is longer than the second predetermined length.

7. The turn signal control system of claim 5, the vehicle being a first vehicle, wherein the processor is configured to determine the proximity of a second vehicle to the first vehicle, the second vehicle being located behind the first vehicle, the set of criteria for determining the turn zone including the proximity of the second vehicle to the first vehicle.

8. The turn signal control system of claim 1, wherein the processor is configured to determine whether the vehicle is in a turn-only lane, the turn signal controller being configured to activate one of the right and left turn signals when the vehicle is in the turn-only lane.

9. The turn signal control system of claim 7, wherein the processor is configured to determine whether the vehicle is in a right-turn-only lane, the processor being configured to determine whether an obstacle is located ahead of the vehicle in the right-turn-only lane, the turn signal controller being configured to activate the right turn signal when the vehicle in the in the right-turn-only lane unless an obstacle having a predetermined size is located ahead of the vehicle in the right-turn-only lane, the turn signal controller being configured to activate the left turn signal when the obstacle having the predetermined size is located ahead of the vehicle in the right-turn-only lane.

10. A turn signal control system for use with a right turn signal and a left turn signal of a first motor vehicle and a vehicle navigation system, the turn signal control system comprising:

a processor configured to be operably coupled to the vehicle navigation system, a vehicle speed data gatherer, a dynamic data gatherer, and an image-gathering device, the processor configured to receive map data and route data from the vehicle navigation system, the map data including positions of side roads, the processor configured to receive speed data from the speed data gatherer, the processor configured to receive general traffic information from the dynamic data gatherer, the processor configured to receive visible traffic information from the image-collecting device, and the processor configured to determine the proximity of a second vehicle to the first vehicle, the second vehicle being located behind the first vehicle, wherein

the processor is configured to determine a turn zone of the vehicle based on a set of criteria, the set of criteria including the route data, the map data, the speed data, the general traffic information, the visible traffic information, and the proximity of the second vehicle to the first vehicle, wherein the turn zone is defined as a position in which the vehicle is approaching a turn or lane change, the turn zone having a first predetermined length when the side roads are closer to each other than a predetermined threshold distance, the turn zone having a second predetermined length when the side roads are farther apart than the predetermined threshold distance, the first and second predetermined lengths being unequal; and

a turn signal controller operably coupled to the processor and configured to activate one of the right and left turn signals when the first vehicle is in the turn zone.

11. The turn signal control system of claim 10, wherein the processor is configured to determine whether the first vehicle is in a right-turn-only lane, the processor being configured to determine whether an obstacle is located ahead of the first vehicle in the right-turn-only lane, the turn signal controller being configured to activate the right turn signal when the first vehicle in the in the right-turn-only lane unless an obstacle having a predetermined size is located ahead of the first vehicle in the right-turn-only lane, the turn signal controller being configured to activate the left turn signal when the obstacle having the predetermined size is located ahead of the first vehicle in the right-turn-only lane.

12. A turn signal control system for use with a right turn signal and a left turn signal of a motor vehicle, a vehicle navigation system, and a dynamic data gatherer, the turn signal control system comprising:

a processor configured to be operably coupled to the vehicle navigation system and the dynamic data gatherer, the processor being configured to receive map data and route data from the vehicle navigation system and traffic information from the dynamic data gatherer, the processor being configured to determine a turn zone of the vehicle based on a set of criteria, the set of criteria including the route data, the map data, and the traffic data; and

a turn signal controller operably coupled to the processor and configured to activate one of the right and left turn signals when the vehicle is in the turn zone.

13. The turn signal control system of claim 12, the processor configured to be operably coupled to a vehicle speed data gatherer, the processor configured to receive speed data from the vehicle speed data gatherer, the set of criteria for determining the turn zone including the speed data.

14. The turn signal control system of claim 13, the processor configured to be operably coupled to an image-collecting device, the processor configured to receive image information related to images outside of the vehicle from the image-collecting device, the image information including at least one of visibility information, visible traffic information, presence of obstacles, and presence of road signs, the set of criteria for determining the turn zone including the image information.

15. The turn signal control system of claim 14, wherein the map data includes positions of side roads, wherein the turn zone is defined as a position in which the vehicle is approaching a turn or lane change, the turn zone having a first predetermined length when the side roads are closer to each other than a predetermined threshold distance, the turn zone having a second predetermined length when the side roads are farther apart than the predetermined threshold distance, the first and second predetermined lengths being unequal.

16. The turn signal control system of claim 15, wherein the vehicle is a first vehicle, and wherein the processor is configured to determine a proximity of a second vehicle to the first vehicle to the first vehicle, the second vehicle being located behind the first vehicle, the set of criteria for determining the turn zone including the proximity of the second vehicle to the first vehicle.

17. The turn signal control system of claim 16, wherein the processor is configured to determine whether the first vehicle is in a right-turn-only lane, the processor being configured to determine whether an obstacle is located ahead of the first vehicle in the right-turn-only lane, the turn signal controller being configured to activate the right turn signal when the first vehicle in the in the right-turn-only lane unless an obstacle having a predetermined size is located ahead of the first vehicle in the right-turn-only lane, the turn signal controller being configured to activate the left turn signal when the obstacle having the predetermined size is located ahead of the first vehicle in the right-turn-only lane.

18. A method of controlling a right turn signal and a left turn signal of a motor vehicle including the use of a vehicle navigation system, the method comprising:

receiving map data and route data from a vehicle navigation system, the map data including positions of side roads;

determining a turn zone of the vehicle based on a set of criteria, the set of criteria including the route data and the map data; and

activating one of the right and left turn signals when the vehicle is in the turn zone.

19. The method of claim 18, further comprising:

receiving speed data from a vehicle speed data gatherer;

receiving dynamic data from a dynamic data gatherer, the dynamic data including at least one of general traffic information, road closure information, hazard information, and weather information;

receiving image information from an image-collecting device, the image information including at least one of visibility information, visible traffic information, presence of obstacles, and presence of road signs; and

the vehicle being a first vehicle, determining the proximity of a second vehicle to the first vehicle, the second vehicle being located behind the first vehicle, wherein the set of criteria for determining the turn zone includes the proximity of the second vehicle to the first vehicle, the image information, the dynamic data, and the speed data.

20. The method of claim 19, wherein the turn zone is defined as a position in which the vehicle is approaching a turn or lane change, the turn zone having a first predetermined length when the side roads are closer to each other than a predetermined threshold distance, the turn zone having a second predetermined length when the side roads are farther apart than the predetermined threshold distance, the first and second predetermined lengths being unequal.

21. The method of claim 18, further comprising determining whether the vehicle is in a turn-only lane and activating one of the turn signals when the vehicle is in the turn-only lane.

22. The method of claim 21, further comprising:

determining whether the vehicle is in a right-turn-only lane;

determining whether an obstacle is located ahead of the vehicle in the right-turn-only lane and determining whether the obstacle is greater than or equal to a predetermined size;

activating the right turn signal when the vehicle in the in the right-turn-only lane unless the obstacle is located ahead of the vehicle in the right-turn-only lane and is greater than or equal to a predetermined size; and

activating the left turn signal when the obstacle is ahead of the vehicle in the right-turn-only lane and is greater than or equal to the predetermined size.

23. A machine-readable medium that provides instructions, which when executed by a machine, cause the machine to perform operations comprising:

receiving map data and route data from a vehicle navigation system, the map data including positions of side roads;

determining a turn zone of the vehicle based on a set of criteria, the set of criteria including the route data and the map data; and

activating one of the right and left turn signals when the vehicle is in the turn zone.

24. An emergency signal control system for use with a right turn signal and a left turn signal of a motor vehicle and a vehicle navigation system, the emergency signal control system comprising:

a processor configured to be operably coupled to the vehicle navigation system, the processor configured to receive map data from the vehicle navigation system, the processor being configured to determine an emergency zone of the vehicle based on a set of criteria, the set of criteria including the map data, wherein the emergency zone is determined when the vehicle is located in a stationary position directly adjacent to a road; and

an emergency signal controller operably coupled to the processor and configured to activate both of the right and left turn signals when the vehicle is in the emergency zone.

25. The emergency signal control system of claim 24, the processor configured to be operably coupled to a speed data gatherer, the processor configured to receive speed data from the speed data gatherer and to receive posted speed limit data from the navigation system, the set of criteria for determining the emergency zone including the speed data, wherein the emergency zone is determined when the vehicle is traveling a predetermined speed that is under the speed limit.

26. The emergency signal control system of claim 25, the processor configured to receive posted speed minimum data from the navigation, wherein the emergency zone is determined when the vehicle is traveling under the post speed minimum.