Exterior light system for a vehicle

Patent metadata

Field	Value
Publication number	US-9796325-B2
Application number	US-201514837015-A
Country	US
Kind code	B2
Filing date	Aug 27, 2015
Priority date	Nov 21, 2013
Publication date	Oct 24, 2017
Grant date	Oct 24, 2017

Abstract

A vehicle lighting system is provided herein and includes light-producing assemblies, each coupled to a body portion of a vehicle. At least one light-sensing device is included for sensing ambient light levels. A controller is configured to selectively activate each of the light-producing assemblies at a variable intensity as a function of a sensed ambient light level and/or a determined direction of the ambient light.

First claim

What is claimed is:

1. An exterior vehicle lighting system comprising:
light-producing assemblies, each coupled to at least one of a front, side, and rear body panel portion of a vehicle;
at least one light-sensing device for sensing ambient light levels; and
a controller configured to interpolate sensed ambient light levels toward a front and rear of the vehicle to determine ambient light levels toward a side of the vehicle and selectively activate each of the light-producing assemblies at a variable intensity as a function of sensed ambient light levels and/or a determined direction of ambient light.

2. The exterior vehicle lighting system of claim 1 , wherein the at least one light-sensing device comprises a day/night sensor for sensing ambient light levels toward the front of the vehicle.

3. The exterior vehicle lighting system of claim 2 , wherein the at least one light-sensing device further comprises a camera configured to sense ambient light levels toward the rear of the vehicle.

4. The exterior vehicle lighting system of claim 1 , wherein light-producing assemblies located on the same body panel portion are arranged thereacross and the controller activates at least a portion of the light-producing assemblies located on the same body panel portion at different intensities to equalize a perceived brightness of the light-producing assemblies located on the same body panel portion in response to ambient light being unevenly directed toward the body panel portion.

5. The exterior vehicle lighting system of claim 1 , wherein the light-producing assemblies each comprise printed LEDs and a photoluminescent structure arranged over the printed LEDs and configured to luminesce in response to excitation by light emitted from the printed LEDs.

6. An exterior vehicle lighting system comprising:
a light-producing assembly coupled to at least one of a front, side, and rear body panel portion of a vehicle;
a light-sensing device for sensing ambient light levels; and
a controller for interpolating sensed ambient light levels toward a front and rear of the vehicle to determine ambient light levels toward a side of the vehicle and selectively activating the light-producing assembly in response to sensed ambient light levels.

7. The exterior vehicle lighting system of claim 6 , wherein the light-sensing device comprises a day/night sensor for sensing ambient light levels toward the front of the vehicle.

8. The exterior vehicle lighting system of claim 7 , wherein the light-sensing device further comprises a camera configured to sense ambient light levels toward the rear of the vehicle.

9. The exterior vehicle lighting system of claim 6 , wherein the light-producing assembly comprises printed LEDs and a photoluminescent structure arranged over the printed LEDs, wherein the photoluminescent structure is configured to luminesce in response to excitation by light emitted from the printed LEDs.

10. An exterior vehicle lighting method, comprising the steps of:
coupling light-producing assemblies to at least one of a front, side, and rear body panel portion of a vehicle;
sensing ambient light levels with at least one light-sensing device;
interpolating sensed ambient light levels toward a front and rear of the vehicle to determine ambient light levels toward a side of the vehicle; and
selectively activating each of the light-producing assemblies at a variable intensity as a function of sensed ambient light levels and/or a determined direction of ambient light.

11. The exterior vehicle lighting method of claim 10 , wherein the at least one light-sensing device comprises a day/night sensor for sensing ambient light levels toward to the front of the vehicle.

12. The exterior vehicle lighting method of claim 11 , wherein the at least one light-sensing device further comprises a camera configured to sense ambient light levels toward the rear of the vehicle.

13. The exterior vehicle lighting system of claim 10 , wherein light-producing assemblies located on the same body panel portion are arranged thereacross and the controller activates at least a portion of the light-producing assemblies located on the same body panel portion at different intensities to equalize a perceived brightness of the light-producing assemblies located on the same body panel portion in response to ambient light being unevenly directed toward the body panel portion.

14. The exterior vehicle lighting system of claim 10 , wherein the light-producing assemblies each comprise printed LEDs and a photoluminescent structure arranged over the printed LEDs and configured to luminesce in response to excitation by light emitted from the printed LEDs.

Assignees

• Ford Global Tech Llc

Inventors

• Salter Stuart C
• Buttolo Pietro
• Dellock Paul Kenneth
• Abdelnour Sleiman N
• Helwig Stephen Kenneth

Classifications

• H05B47/105

  in response to determined parameters · CPC title

• H05B47/11

  by determining the brightness or colour temperature of ambient light · CPC title

• F21S43/14

  Light emitting diodes [LED] · CPC title

• B60Q1/0035

  relative to the vehicle · CPC title

• B60Q1/26

  the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic · CPC title