Exterior light system for a vehicle

• US 9,796,325 B2
• Filed: 08/27/2015
• Issued: 10/24/2017
• Est. Priority Date: 11/21/2013
• Status: Active Grant

• Current Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Original Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Inventors: Salter, Stuart C., Buttolo, Pietro, Dellock, Paul Kenneth, Abdelnour, Sleiman N., Helwig, Stephen Kenneth
• Primary Examiner(s): Han, Jason Moon
• Application Number:
  US14/837,015
• Publication Number:
  US 20150367772A1
• Time in Patent Office: 789 Days
• Field of Search: 362487, 362493-496, 362501, 362505-506, 362540, 362543-549
• CPC Class Codes: B60Q 1/0035 relative to the vehicle
• CPC Class Codes: B60Q 1/26 the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
• CPC Class Codes: B60Q 1/2603 Attenuation of the light according to ambient luminiosity, e.g. for braking or direction indicating lamps
• CPC Class Codes: B60Q 1/32 for indicating vehicle sides , e.g. clearance lights
• CPC Class Codes: B60Q 1/323 on or for doors illuminated exterior door handles B60Q1/2669; illuminated door locks E05B17/10
• CPC Class Codes: F21S 43/14 Light emitting diodes [LED]
• CPC Class Codes: H05B 47/105 in response to determined parameters
• CPC Class Codes: H05B 47/11 by determining the brightness or colour temperature of ambient light
• CPC Class Codes: Y02B 20/40 Control techniques providing energy savings, e.g. smart controller or presence detection

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.

Claims

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.