Systems and methods for green light nudge monitoring and alert

• US 9,922,559 B1
• Filed: 11/16/2016
• Issued: 03/20/2018
• Est. Priority Date: 11/16/2016
• Status: Active Grant

• Current Assignee: DENSO Corporation, Denso International America Incorporated (DENSO Corporation)
• Original Assignee: DENSO Corporation, Denso International America Incorporated (DENSO Corporation)
• Inventors: Inoue, Marcus S.
• Primary Examiner(s): Kim, Kevin
• Application Number:
  US15/353,518
• Time in Patent Office: 489 Days
• Field of Search: 3404255, 34042623
• CPC Class Codes: G08G 1/095 Traffic lights
• CPC Class Codes: G08G 1/09623 Systems involving the acquisition of information from passive traffic signs by means mounted on the vehicle G08G1/0967 takes precedence
• CPC Class Codes: G08G 1/096716 where the received information does not generate an automatic action on the vehicle control
• CPC Class Codes: G08G 1/096758 where no selection takes place on the transmitted or the received information
• CPC Class Codes: G08G 1/096783 where the origin of the information is a roadside individual element
• CPC Class Codes: G08G 1/166 for active traffic, e.g. moving vehicles, pedestrians, bikes

Abstract

Systems and methods for a green light detection and alert system for a vehicle are provided and include a green light nudge system that determines when to alert a driver of a vehicle and a driver alert system that alerts the driver when prompted by the green light nudge system. The green light nudge system includes a traffic signal determination unit that determines when a traffic signal changes from red to green, a vehicle path determination unit that determines when a vehicle path is clear of obstacles, and a vehicle nudge unit that sends a signal to the driver alert system to notify the driver of the vehicle. The vehicle nudge unit only sends the signal to notify the driver when the traffic signal determination unit determines that the traffic signal is green and the vehicle path determination unit determines that the vehicle path is clear.

Claims

1. A green light detection and alert system for a vehicle comprising:

a green light nudge system for determining when to alert a driver of a vehicle; and

a driver alert system communicating with the green light nudge system and alerting the driver of the vehicle when prompted by the green light nudge system,

wherein the green light nudge system includes;

a traffic signal determination unit that determines when a traffic signal changes from red to green;

a vehicle path determination unit that determines when a vehicle path is clear of obstacles;

a vehicle nudge unit communicating with the driver alert system to send a signal to the driver alert system to notify the driver of the vehicle; and

a vehicle position/condition determination unit that determines a location of the vehicle and whether the vehicle is experiencing any mechanical malfunctions,

wherein the vehicle nudge unit only sends the signal to notify the driver when the traffic signal determination unit determines that the traffic signal is green and the vehicle path determination unit determines that the vehicle path is clear, and

wherein the green light nudge system does not notify the driver if the vehicle is experiencing any mechanical malfunctions.

2. The system of claim 1, wherein the green light nudge system further includes an internal alarm that is set and triggers after a predetermined amount of time, wherein the green light nudge system does not notify the driver until the internal alarm triggers.

3. The system of claim 2, wherein the internal alarm is set within a range of three to ten seconds.

4. The system of claim 1, further comprising a global positioning system or global navigation satellite system that communicates with the green light nudge system to provide vehicle position and movement or acceleration data.

5. The system of claim 1, further comprising a dedicated short range communication system that communicates with the green light nudge system to provide map data or traffic signal phase and timing data.

6. The system of claim 5, wherein the dedicated short range communication system communicates with other vehicles to provide position data of the other vehicles relative to the vehicle.

7. The system of claim 1, further comprising a control area network that communicates with the green light nudge system to provide a steering wheel angle from a steering wheel position sensor, left or right turn signal activation from left and right turn signal sensors, acceleration pedal position from an acceleration pedal position sensor, obstacle data from proximity sensors, and vehicle malfunction data from various other sensors.

8. The system of claim 1 wherein the driver alert system communicates with one or more of a driver information center, a heads-up display, an alarm, a radio, a steering wheel controller, and a driver seat controller to provide one or more of an audio alert, a visual alert, and a tactile alert.

9. The system of claim 1, wherein the green light nudge system receives information from one or more proximity sensors or one or more cameras through a control area network to determine whether the vehicle path is clear, and when another vehicle is within the vehicle path, the green light nudge system refrains from sending the signal to the driver alert system to alert the driver of the vehicle.

10. A method for detecting a green light and alerting or nudging a driver of a subject vehicle, the method comprising:

determining, with a green light nudge system, whether a traffic signal is green;

determining, with the green light nudge system, whether a vehicle path is clear;

determining, with the green light nudge system, a location of the subject vehicle and whether the subject vehicle is experiencing any mechanical malfunctions; and

activating, with a driver alert system, one or more of an audio notification, a visual notification, and a tactile notification to alert the driver of the subject vehicle in response to the green light nudge system determining that the traffic signal is green and the vehicle path is clear,

wherein the driver is not notified if the vehicle is experiencing any mechanical malfunctions.

11. The method of claim 10, further comprising determining, with a vehicle position/condition determine unit, a location of other vehicles in relation to the subject vehicle, wherein the green light nudge system determines whether the vehicle path is clear based on the location of the other vehicles in relate to the subject vehicle.

12. The method of claim 10, further comprising setting an internal alarm and waiting for the internal alarm to trigger before activating one or more of the audio notification, the visual notification, and the tactile notification to alert the driver of the subject vehicle.

13. The method of claim 12, wherein the internal alarm is set within a range of three to ten seconds.

14. The method of claim 10, further comprising determining whether the traffic signal is green from a dedicated short range communication radio disposed at an intersection.

15. The method of claim 14, further comprising determining whether the vehicle path is clear from map data received from the dedicated short range communication radio and one or more proximity sensors or one or more cameras disposed on the subject vehicle.

16. The method of claim 10, further comprising determining whether the subject vehicle is at a dedicated short range communication enabled intersection.

17. The method of claim 16, further comprising attempting to communicate with a dedicated short range communication radio at the intersection to determine whether the subject vehicle is at a dedicated short range communication enabled intersection.

18. The method of claim 10, further comprising determining whether the subject vehicle moved after determining whether the traffic signal is green and whether the vehicle path is clear.

19. The method of claim 18, further comprising analyzing at least one of time and position signals from a global positioning system or global navigation satellite system to determine acceleration and acceleration pedal position signals from an acceleration pedal position sensor to determine whether the subject vehicle moved.

20. A green light detection and alert system for a vehicle comprising:

a green light nudge system for determining when to alert a driver of a vehicle;

a driver alert system communicating with the green light nudge system and alerting the driver of the vehicle when prompted by the green light nudge system; and

a control area network that communicates with the green light nudge system to provide a steering wheel angle from a steering wheel position sensor, left or right turn signal activation from left and right turn signal sensors, acceleration pedal position from an acceleration pedal position sensor, obstacle data from proximity sensors, and vehicle malfunction data from various other sensors,

wherein the green light nudge system includes;

a traffic signal determination unit that determines when a traffic signal changes from red to green;

a vehicle path determination unit that determines when a vehicle path is clear of obstacles; and

a vehicle nudge unit communicating with the driver alert system to send a signal to the driver alert system to notify the driver of the vehicle,

wherein the vehicle nudge unit only sends the signal to notify the driver when the traffic signal determination unit determines that the traffic signal is green and the vehicle path determination unit determines that the vehicle path is clear.