Intervehicle communication system

• US 20070265767A1
• Filed: 03/29/2007
• Published: 11/15/2007
• Est. Priority Date: 05/09/2006
• Status: Active Grant

• Current Assignee: DENSO Corporation
• Original Assignee: DENSO Corporation
• Inventors: Yamamoto, Atsushi
• Granted Patent: US 7,853,405 B2
• Time in Patent Office: Days
• US Class Current: 701/117
• CPC Class Codes: G08G 1/162 event-triggered

Abstract

A driving support system for use in a vehicle uses a headlight controller for directing a headlight beam on a road surface in an intersection when the vehicle stops at the intersection. Another vehicle simultaneously approaching the intersection detects the beam of the surface with an image sensor and processor of the driving support system. The system of the another vehicle sends back a vehicle ID signal to the stopping vehicle when a predetermined beam pattern is recognized by the processor. Then, the system uses a buzzer for notifying a driver of the stopping vehicle that the ID signal has been returned.

Claims

1. A driving support system for use in a vehicle comprising:

a light control unit for controlling a light of the vehicle, wherein the light is controlled to light an intersection road surface when the vehicle is stopping at a stop position of an intersection;

a signal transmission unit for transmitting an entrance signal before the vehicle is entering the intersection, wherein the entrance signal is transmitted when lighting on the intersection road surface by a stopping vehicle at the intersection is detected by the transmission unit; and

a notification unit for providing a stop notification that encourages a driver to stop at the stop position of the intersection for an extended time, wherein the notification unit provides the stop notification when the entrance signal is received by the notification unit,

wherein at least two vehicles equipped with the light control unit, the signal transmission unit and the notification unit are organized as a system for supporting driving operation of the respective vehicles.

2. The driving support system as in claim 1,

wherein the signal transmission unit detects the lighting on the intersection road surface by the stopping vehicle based on an image recognition.

3. The driving support system as in claim 1,

wherein the light control unit wirelessly transmits an ID signal for identifying the self vehicle in addition to controlling the light of the self vehicle,

the signal transmission unit receives the ID signal in addition to reciprocally transmitting the ID signal as the entrance signal, and

the notification unit provides the stop notification based on a reception of the ID signal that is reciprocated to the self vehicle as the entrance signal.

4. The driving support system as in claim 1 further comprising:

a warning unit for providing a warning for a driver of the stopping vehicle, wherein a warning of an entrance of the self vehicle based on a detection of the lighting on the intersection road surface by the light of the stopping vehicle is provided for the driver of the stopping vehicle.

5. The driving support system as in claim 4,

wherein the warning unit controls lighting pattern of the lighting in a predetermined manner for providing the warning that the self vehicle is entering the intersection.

6. The driving support system as in claim 4,

wherein the warning unit uses a horn for providing the warning that the self vehicle is entering the intersection.

10. The driving support system as in claim 1,

wherein a roadside transmitter transmits a stop signal at the stop position of the intersection for encouraging a driver of approaching vehicles to stop at the intersection, and

the light control unit controls the lighting of the self vehicle based on a reception of the stop signal from the transmitter.

7. A driving support system for use in a self vehicle comprising:

a light control unit for controlling a light of the self vehicle, wherein the light is controlled to light an intersection road surface when the self vehicle is stopping at a stop position of an intersection; and

a warning unit for providing a warning for a driver of a stopping vehicle, wherein a warning of an entrance of the self vehicle based on a detection of the lighting on the intersection road surface by a stopping vehicle is provided for the driver of the stopping vehicle,

wherein at least two vehicles equipped with the light control unit and the warning unit for reciprocal communication are organized as a system for supporting driving operation of the respective vehicles.

8. The driving support system as in claim 7,

wherein the warning unit controls lighting pattern of the lighting for providing the warning that the self vehicle is entering the intersection.

9. The driving support system as in claim 7,

wherein the warning unit uses a horn for providing the warning that the self vehicle is entering the intersection.

11. A driving support apparatus for use in a self vehicle comprising:

a light control unit for controlling a light of the self vehicle, wherein the light is controlled to light an intersection road surface when the self vehicle is stopping at a stop position of an intersection;

a signal transmission unit for transmitting an entrance signal before the self vehicle is entering the intersection, wherein the entrance signal is wirelessly transmitted when lighting on the intersection road surface by the light of a stopping vehicle at the intersection is detected by the transmission unit; and

a notification unit for providing a stop notification that encourages a driver of the self vehicle to stop at the stop position of the intersection for an extended time, wherein the notification unit provides the stop notification when the entrance signal is received by the notification unit.

12. The driving support apparatus as in claim 11,

wherein the signal transmission unit detects the lighting on the intersection road surface by the stopping vehicle based on an image recognition.

13. The driving support apparatus as in claim 11,

wherein the light control unit wirelessly transmits an ID signal for identifying the self vehicle in addition to controlling the light of the self vehicle,

the signal transmission unit receives the ID signal in addition to reciprocally transmitting the ID signal as the entrance signal, and

the notification unit provides the stop notification based on a reception of the ID signal that is reciprocated to the self vehicle as the entrance signal.

14. The driving support apparatus as in claim 11 further comprising:

a warning unit for providing a warning for a driver of the stopping vehicle, wherein a warning of an entrance of the self vehicle based on a detection of the lighting on the intersection road surface by the light of the stopping vehicle is provided for the driver of the stopping vehicle.

15. The driving support apparatus as in claim 14,

wherein the warning unit controls lighting pattern of the lighting in a predetermined manner for providing the warning that the self vehicle is entering the intersection.

16. The driving support apparatus as in claim 14,

wherein the warning unit uses a horn for providing the warning that the self vehicle is entering the intersection.

20. The driving support apparatus as in claim 11,

wherein a roadside transmitter transmits a stop signal at the stop position of the intersection for encouraging a driver of approaching vehicles to stop at the intersection, and

the light control unit controls the lighting of the self vehicle based on a reception of the stop signal from the transmitter.

17. A driving support apparatus for use in a self vehicle comprising:

a light control unit for controlling a light of the self vehicle, wherein the light is controlled to light an intersection road surface when the self vehicle is stopping at a stop position of an intersection; and

a warning unit for providing a warning for a driver of a stopping vehicle, wherein a warning of an entrance of the self vehicle based on a detection of the lighting on the intersection road surface by the light of a stopping vehicle is provided for the driver of the stopping vehicle.

18. The driving support apparatus as in claim 17,

wherein the warning unit controls lighting pattern of the lighting in a predetermined manner for providing the warning that the self vehicle is entering the intersection.

19. The driving support apparatus as in claim 17,

wherein the warning unit uses a horn for providing the warning that the self vehicle is entering the intersection.