Projected laser lines/graphics onto the road for indicating truck platooning/warning to other drivers of presence of truck platoon

Patent metadata

Field	Value
Publication number	US-9878657-B2
Application number	US-201615182948-A
Country	US
Kind code	B2
Filing date	Jun 15, 2016
Priority date	Jun 15, 2016
Publication date	Jan 30, 2018
Grant date	Jan 30, 2018

Abstract

A system and method are provided and include a light source projector with a positional actuator mounted on a subject vehicle that projects a laser line on a roadway upon which the subject vehicle is traveling. A controller is in communication with a platoon vehicle traveling in front of or behind the subject vehicle in a platoon and controls the positional actuator to project the laser line on the roadway between the subject vehicle and the at least one platoon vehicle.

First claim

What is claimed is:

1. A system comprising:
at least one first light source projector with at least one first positional actuator mounted on a subject vehicle that projects a first laser line on a roadway upon which the subject vehicle is traveling; and
a first controller in communication with a second controller of a platoon vehicle traveling in front of or behind the subject vehicle in a platoon, the platoon vehicle having at least one second light source projector with at least one second positional actuator mounted on the platoon vehicle that projects a second laser line on the roadway upon which the platoon vehicle is traveling;
wherein the first controller controls the at least one first positional actuator to project the first laser line on the roadway, parallel to a lane line of the roadway, between the subject vehicle and the platoon vehicle;
wherein the second controller controls the at least one second positional actuator to project the second laser line on the roadway, parallel to the lane line of the roadway, between the subject vehicle and the platoon vehicle; and
wherein the first controller and the second controller communicate with each other to coordinate operation of the at least one first positional actuator and the at least one second positional actuator to overlap the first laser line with the second laser line to form a continuous laser line between the subject vehicle and the platoon vehicle while the subject vehicle and the platoon vehicle are traveling on the roadway.

2. The system of claim 1 , wherein the first controller controls at least one of a steering system, a braking system, a throttle system, and a transmission system based on information received through communication with the platoon vehicle.

3. The system of claim 1 , wherein the subject vehicle includes a tractor unit and a semi-trailer.

4. The system of claim 3 , wherein the at least one first light source projector and the at least one first positional actuator are mounted on the tractor unit, the system further comprising:
at least one additional light source projector with at least one additional positional actuator, the at least one additional light source projector and the at least one additional positional actuator being mounted on the semi-trailer, the first controller controlling the at least one additional positional actuator to project an additional laser line on the roadway behind the subject vehicle.

5. The system of claim 1 , wherein the at least one first light source projector includes a first bank of light source projectors mounted on a driver side of the subject vehicle and a second bank of light source projectors mounted on a passenger side of the subject vehicle.

6. The system of claim 5 , wherein the first bank of light source projectors are mounted on a front driver side of the subject vehicle and the second bank of light source projectors are mounted on a front passenger side of the subject vehicle, the system further comprising a third bank of light source projectors mounted on a rear driver side of the subject vehicle and a fourth bank of light source projectors mounted on a rear passenger side of the subject vehicle.

7. The system of claim 1 , further comprising at least one additional light source projector with at least one additional positional actuator, wherein the first controller controls the at least one additional positional actuator to project a graphical display indicating at least one distance marker in front of the subject vehicle.

8. The system of claim 1 , wherein the at least one first light source projector includes a laser diode.

9. The system of claim 1 , further comprising at least one sensor that detects a secondary vehicle traveling on the roadway in a lane adjacent to the subject vehicle, wherein the first controller controls a color of the first laser line based on a position of the secondary vehicle relative to the subject vehicle.

10. A method comprising:
projecting, with at least one first light source projector having at least one first positional actuator mounted on a subject vehicle, a first laser line on a roadway upon which the subject vehicle is traveling;
controlling, with a first controller, the at least one first positional actuator to project the first laser line on the roadway, parallel to a lane line of the roadway, between the subject vehicle and a platoon vehicle traveling in front of or behind the subject vehicle in a platoon; and
communicating, using the first controller, with a second controller of the platoon vehicle, the platoon vehicle having at least one second light source projector with at least one second positional actuator mounted on the platoon vehicle, the second controller controlling the at least one second positional actuator to project a second laser line on the roadway, parallel to the lane line of the roadway, between the subject vehicle and the platoon vehicle;
wherein the first controller and the second controller communicate with each other to coordinate operation of the at least one first positional actuator and the at least one second positional actuator to overlap the first laser line with the second laser line to form a continuous laser line between the subject vehicle and the platoon vehicle while the subject vehicle and the platoon vehicle are traveling on the roadway.

11. The method of claim 10 , further comprising:
controlling, with the first controller, at least one of a steering system, a braking system, a throttle system, and a transmission system based on information received through communication with the platoon vehicle.

12. The method of claim 10 , wherein the subject vehicle includes a tractor unit and a semi-trailer.

13. The method of claim 12 , wherein the at least one first light source projector and the at least one first positional actuator are mounted on the tractor unit, the method further comprising:
projecting, with at least one additional light source projector having at least one additional positional actuator mounted on the semi-trailer, at least one additional laser line; and
controlling, with the controller, the at least one additional positional actuator to project the additional laser line on the roadway behind the subject vehicle.

14. The method system of claim 10 , wherein the at least one first light source projector includes a first bank of light source projectors mounted on a driver side of the subject vehicle and a second bank of light source projectors mounted on a passenger side of the subject vehicle.

15. The method of claim 14 , wherein the first bank of light source projectors are mounted on a front driver side of the subject vehicle and the second bank of light source projectors are mounted on a front passenger side of the subject vehicle, and wherein a third bank of light source projectors are mounted on a rear driver side of the subject vehicle and a fourth bank of light source projectors are mounted on a rear passenger side of the subject vehicle.

16. The method of claim 10 , the subject vehicle having at least one additional light source projector with at least one additional positional actuator mounted on the subject vehicle, the method further comprising:
controlling, with the first controller, the at least one additional positional actuator to project a graphical display indicating at least one distance marker in front of the subject vehicle.

17. The method of claim 10 , wherein the at least one light first source projector includes a laser diode.

18. The method of claim 10 , further comprising:
detecting, with at least one

Assignees

• Denso Int America Inc

Inventors

• Wunsche Iii Robert William
• Webb Gareth

Classifications

• B62D15/025

  Active steering aids, e.g. helping the driver by actively influencing the steering system after environment evaluation (B62D1/28 takes precedence) · CPC title

• B60Q1/28 Primary

  for indicating front of vehicle · CPC title

• G08G1/22 Primary

  Platooning, i.e. convoy of communicating vehicles · CPC title

• F16H59/60

  Inputs being a function of ambient conditions · CPC title

• B60T7/12

  for automatic initiation; for initiation not subject to will of driver or passenger {(limiting speed of vehicles other than rail vehicles B60K31/00)} · CPC title