Automotive lighting with variable controlled actuators

Patent metadata

Field	Value
Publication number	US-10843620-B2
Application number	US-201816206490-A
Country	US
Kind code	B2
Filing date	Nov 30, 2018
Priority date	Nov 30, 2018
Publication date	Nov 24, 2020
Grant date	Nov 24, 2020

Abstract

In an automotive lighting apparatus, at least one lighting component generates a corresponding light field. The lighting component is aligned such that the light field conforms to an illumination profile having a cutoff region meeting a cutoff criterion. At least one actuator is mechanically coupled to the lighting component to aim the lighting component in a direction other than that in which the lighting component was aligned. A control component operates the actuator based on the speed of an automobile in which the lighting component is installed. The actuator is then configured to aim the lighting component in the direction other than that in which the lighting component was aligned so that the light field thereof conforms to another illumination profile meeting another cutoff criterion.

First claim

The invention claimed is:

1. An automotive lighting apparatus comprising:
at least two lighting components to generate a light field, the at least two lighting components configured to be aligned such that the light field conforms to a first illumination profile having a cutoff region that meets a first cutoff criterion,
where the at least two lighting components include a flat component configured to produce a first beam having a flat cutoff and includes a kink component configured to produce a second beam having an angled cutoff;
at least one actuator mechanically coupled to the at least two lighting components that are configured to aim the at least two lighting components in a direction other than an initial direction in which the at least two lighting components are aligned, wherein the direction other than the initial direction that the at least two lighting components are configured to aim a displacement of the light field along a vertical axis by up to 0.2 degree of a beam field resolution; and
a control component configured to operate the at least one actuator based on a speed of an automobile where the at least two lighting components are installed,
where the at least one actuator is configured to aim the at least two lighting components in same said direction such that the light field of the second beam exclusive to the first beam also conforms to a second illumination profile that meets a second cutoff criterion.

2. The automotive lighting apparatus of claim 1 , wherein the at least two lighting components conform to the first illumination profile meeting the first cutoff criterion while the speed of the automobile is less than a threshold speed and the at least two lighting components conform to the second illumination profile meeting the second cutoff criterion while the speed of the automobile is greater than the threshold speed.

3. The automotive lighting apparatus of claim 2 , wherein the threshold speed is 30 miles per hour.

4. An automobile comprising:
at least two lighting components to generate a light field, the at least two lighting components configured to be aligned such that the light field conforms to a first illumination profile having a cutoff region that meets a first cutoff criterion,
where the at least two lighting components include a flat component configured to produce a first beam having a flat cutoff and includes a kink component configured to produce a second beam having an angled cutoff;
at least one actuator mechanically coupled to the at least two lighting components that are configured to aim the at least two lighting components in a direction other than an initial direction in which the at least two lighting components are aligned, wherein the direction other than the initial direction that the at least two lighting components are configured to aim a displacement of the light field along a vertical axis upwards up to 0.4 degree of a beam field resolution; and
a control component configured to operate the at least one actuator based on a speed of the automobile, where the at least one actuator is configured to aim the at least two lighting components in same said direction such that the light field of the second beam, exclusive to the first beam, also conforms to a second illumination profile that meets a second cutoff criterion.

5. The automobile of claim 4 , wherein the at least two lighting components conform to the first illumination profile meeting the first cutoff criterion while the speed of the automobile is less than a threshold speed and the at least two lighting component conform to the second illumination profile meeting the second cutoff criterion while the speed of the automobile is greater than the threshold speed.

6. The automobile of claim 5 , wherein the threshold speed is 30 miles per hour.

7. A method of automotive lighting comprising:
aiming at least two lighting components that generate a light field, the at least two lighting components being aligned such that the light field conforms to a first illumination profile having a first cutoff region that meets a first cutoff criterion,
where the at least two lighting components include a flat component configured to produce a first beam having a flat cutoff and includes a kink component configured to produce a second beam having an angled cutoff, wherein the direction other than the initial direction that the at least two lighting components are aimed with a displacement of the light field along a vertical axis by up to 0.4 degree of a beam field resolution; and
aiming the at least two lighting components in response to a command issued by a controller in the same direction such that the light field of the second beam, exclusive to the first beam, conforms to a second illumination profile that meets a second cutoff criterion,
the command indicating a speed of an automobile where the at least two lighting components are installed, such that the light field of the at least two lighting components also conforms to the second illumination profile that meets the second cutoff criterion.

8. The method of claim 7 , further comprising:
aiming the at least two lighting components to conform to the first illumination profile meeting the first cutoff criterion while the speed of the automobile is less than a threshold speed; and
aiming the at least two lighting components to conform to the second illumination profile meeting the second cutoff criterion while the speed of the automobile is greater than the threshold speed.

9. The method of claim 8 , wherein the threshold speed is 30 miles per hour.

Assignees

• Valeo North America Inc

Inventors

• Warner Gavin
• Simons Greg
• Hemon Julien

Classifications

• F21S41/321

  the reflector being a surface of revolution or a planar surface, e.g. truncated · CPC title

• B60Q2300/112

  Vehicle speed · CPC title

• B60Q1/076 Primary

  by electrical means {including means to transmit the movements, e.g. shafts or joints} · CPC title

• F21S41/62

  for adaptation between right-hand and left-hand traffic · CPC title

• B60Q1/143 Primary

  combined with another condition, e.g. using vehicle recognition from camera images or activation of wipers · CPC title