Laser projected lines to indicate while driving in semi-truck blind spots

• US 9,845,046 B1
• Filed: 06/15/2016
• Issued: 12/19/2017
• Est. Priority Date: 06/15/2016
• Status: Expired due to Fees

• Current Assignee: Denso International America Incorporated (DENSO Corporation)
• Original Assignee: Denso International America Incorporated (DENSO Corporation)
• Inventors: Arceo, Marc, Webb, Gareth
• Primary Examiner(s): Hofsass, Jeffery
• Application Number:
  US15/183,060
• Publication Number:
  US 20170361767A1
• Time in Patent Office: 552 Days
• Field of Search: 340435, 340468, 340469, 340470, 340479
• CPC Class Codes: B60Q 1/525 automatically indicating risk of collision between vehicles in traffic or with pedestrians, e.g. after risk assessment using the vehicle sensor data
• CPC Class Codes: B60Q 2400/50 Projected symbol or information, e.g. onto the road or car body

Abstract

A system and method are provided and include light source projectors with positional actuators mounted on a subject vehicle. A controller controls the light source projectors and the positional actuators to project at least one laser line on a roadway upon which the subject vehicle is traveling. A location of the at least one laser line corresponds to at least one blind spot alert area of the subject vehicle.

Claims

1. A system comprising:

at least one light source projector with at least one positional actuator mounted on a subject vehicle;

a controller that controls the at least one light source projector and the at least one positional actuator to project at least one laser line on a roadway upon which the subject vehicle is traveling, a location of the at least one laser line corresponding to at least one blind spot alert area of the subject vehicle; and

a blind spot monitoring system with a blind spot sensor that monitors the at least one blind spot alert area and detects when a secondary vehicle enters the at least one blind spot alert area;

wherein the controller is in communication with the blind spot monitoring system and controls the at least one light source projector to project the at least one laser line on the roadway with a first color in response to the blind spot monitoring system detecting that no secondary vehicles are located within the at least one blind spot alert area, with a second color in response to the blind spot monitoring system detecting that a secondary vehicle has been located within the at least one blind spot alert area for a first predetermined time period, and with a third color in response to the blind spot monitoring system detecting that the secondary vehicle has been located within the at least one blind spot alert area for a second predetermined time period.

2. The system of claim 1,

wherein the controller is in communication with the blind spot monitoring system and controls the at least one light source projector to change a color of the at least one laser line projected on the roadway in response to the blind spot monitoring system detecting a secondary vehicle located in the at least one blind spot alert area.

3. The system of claim 1,

wherein the controller is in communication with the blind spot monitoring system and controls the at least one light source projector to perform blinking or flashing of the at least one laser line projected on the roadway in response to the blind spot monitoring system detecting a secondary vehicle located in the at least one blind spot alert area.

4. The system of claim 1, further comprising:

at least one additional light source projector with at least one additional positional actuator mounted on the subject vehicle;

wherein the controller controls the at least one additional light source projector and the at least one additional positional actuator to project a graphical display with a warning symbol onto a side of the subject vehicle.

5. The system of claim 4,

wherein the controller is in communication with the blind spot monitoring system and controls the at least one additional light source projector and the at least one additional positional actuator mounted on the subject vehicle to project the graphical display with the warning symbol onto the side of the subject vehicle in response to the blind spot monitoring system detecting the secondary vehicle located in the at least one blind spot alert area.

6. The system of claim 4, wherein the vehicle includes a tractor unit and a semi-trailer and the at least one additional light source projector is mounted to the semi-trailer.

7. The system of claim 4, wherein the vehicle includes a tractor unit and a semi-trailer and the at least one additional light source projector is mounted to the tractor unit.

8. The system of claim 1, wherein the vehicle includes a tractor unit and a semi-trailer and the at least one light source projector is mounted to the tractor unit.

9. A method comprising:

controlling, with a controller, at least one light source projector with at least one positional actuator mounted on a subject vehicle, the controller controlling the at least one light source projector and the at least one positional actuator to project at least one laser line on a roadway upon which the subject vehicle is traveling, a location of the at least one laser line corresponding to at least one blind spot alert area of the subject vehicle; and

monitoring, with a blind spot monitoring system having a blind spot sensor, the at least one blind spot alert area, the blind spot monitoring system being in communication with the controller;

detecting, with the blind spot monitoring system, when a secondary vehicle enters the at least one blind spot alert area;

controlling, with the controller, the at least one light source projector to project the at least one laser line on the roadway with a first color in response to the blind spot monitoring system detecting that no secondary vehicles are located within the at least one blind spot alert area, with a second color in response to the blind spot monitoring system detecting that a secondary vehicle has been located within the at least one blind spot alert area for a first predetermined time period, and with a third color in response to the blind spot monitoring system detecting that the secondary vehicle has been located within the at least one blind spot alert area for a second predetermined time period.

10. The method of claim 9,

controlling, with the controller, the at least one light source projector to change a color of the at least one laser line projected on the roadway in response to the blind spot monitoring system detecting a secondary vehicle located in the at least one blind spot alert area.

11. The method of claim 9,

controlling, with the controller, the at least one light source projector to perform blinking or flashing of the at least one laser line projected on the roadway in response to the blind spot monitoring system detecting a secondary vehicle located in the at least one blind spot alert area.

12. The method of claim 9, further comprising:

controlling, with the controller, at least one additional light source projector with at least one additional positional actuator mounted on the subject vehicle to project a graphical display with a warning symbol onto a side of the subject vehicle.

13. The method of claim 12,

controlling, with the controller, the at least one additional light source projector and the at least one additional positional actuator mounted on the subject vehicle to project the graphical display with the warning symbol onto the side of the subject vehicle in response to the blind spot monitoring system detecting the secondary vehicle located in the at least one blind spot alert area.

14. The method of claim 12, wherein the vehicle includes a tractor unit and a semi-trailer and the at least one additional light source projector is mounted to the semi-trailer.

15. The method of claim 12, wherein the vehicle includes a tractor unit and a semi-trailer and the at least one additional light source projector is mounted to the tractor unit.

16. The method of claim 9, wherein the vehicle includes a tractor unit and a semi-trailer and the at least one light source projector is mounted to the tractor unit.