# US 11,077,786 B2 · Motor vehicle adaptive front lighting system and method

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- Number: US 11,077,786 B2
- Document ID: US11077786B2
- Status: Granted
- Kind: B2
- Application number: 16/815,616
- Filed: 2020-03-11
- Published: 2020-07-02
- Granted: 2021-08-03
- Earliest claimed: 2018-06-29
- Assignees: Valeo North America, Inc.
- Applicants: Valeo North America, Inc.
- Inventors: Brant Potter
- Web page: https://patentgrep.com/patent/US11077786B2

## CPC

- B60Q 1/1423: {Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic}
- B60Q 1/085: {due to special conditions, e.g. adverse weather, type of road, badly illuminated road signs or potential dangers (B60Q1/10, B60Q1/12, B60Q1/1423 take precedence)}
- F21S 41/657: by moving light sources
- B60Q 2300/056: Special anti-blinding beams, e.g. a standard beam is chopped or moved in order not to blind
- B60Q: ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS

## Abstract

A headlamp assembly, an adaptive front-lighting system, and a method for generating a hybrid luminous intensity distribution are provided. The headlamp assembly includes a light module configured to emit a first luminous intensity distribution and a supplementary module including a plurality of independently controlled pixels and configured to emit a second luminous intensity distribution which at least partially overlaps with the first luminous intensity distribution. The second luminous intensity distribution varies with a rotation of the light module by selectively activating or deactivating each pixel of the plurality of independently controlled pixels based on at least a rotation angle of the light module with respect to the supplementary module.

## Claims

### Claim 1

An adaptive front-lighting system of a motor vehicle, comprising:
a light module configured to generate a first beam pattern of a first luminous intensity distribution, wherein the light module is a low beam module; and
a supplementary module including a plurality of independently controlled pixels that are configured to generate a second beam pattern of a second luminous intensity distribution which at least partially overlaps with the first luminous intensity distribution,
wherein each pixel of the plurality of independently controlled pixels is activated or deactivated based on a rotation angle of the light module and a location of a number of regulatory points, and
wherein the second luminous intensity distribution is configured to vary with at least a rotation of the light module with respect to the supplementary module through each pixel's selective activation or deactivation of said independently controlled pixels.

### Claim 2 (depends on 1)

The headlamp assembly of claim 1, wherein a portion of the plurality of independently controlled pixels are non-illuminated when a plurality of control zones that are associated with the independently controlled pixels overlaps with the location of regulatory points.

### Claim 3 (depends on 1)

The headlamp assembly of claim 1, wherein the first luminous intensity distribution differs from the second luminous intensity distribution.

### Claim 4 (depends on 3)

The headlamp assembly of claim 3, wherein the first luminous intensity distribution includes a maximum intensity hot spot region.

### Claim 5 (depends on 1)

The headlamp assembly of claim 1, wherein the light module is adapted to generate a beam pattern with a kink.

### Claim 6

An adaptive front-lighting system of a vehicle, comprising:
a light module configured to generate a first luminous intensity distribution of a first beam pattern wherein the light module is a low beam module;
a supplementary module including a plurality of independently controlled pixels that are configured to generate a second luminous intensity distribution of a second beam pattern that at least partially overlaps with the first beam pattern, wherein each pixel of the plurality of independently controlled pixels is either activated or deactivated based on a baseline reference of a rotation angle of the light module and locations of a number of regulatory points; and
wherein the second beam pattern is configured to vary with at least rotations of the light module with respect to the supplementary module—through each pixel's selective activation or deactivation.

### Claim 7 (depends on 6)

The adaptive front-lighting system of claim 6, wherein a portion of the plurality of independently controlled pixels are non-illuminated when a plurality of associated control zones overlaps with the location of regulatory points.

### Claim 8 (depends on 7)

The adaptive front-lighting system of claim 7, wherein an overall intensity of the first beam pattern differs from an overall intensity of the second beam pattern.

### Claim 9 (depends on 8)

The adaptive front-lighting system of claim 8, wherein the first beam pattern includes a maximum intensity hot spot region.

### Claim 10 (depends on 6)

The adaptive front-lighting system of claim 6, wherein the first beam pattern is a beam pattern having a kink.

### Claim 11

A method of generating a hybrid luminous intensity distribution of a motor vehicle adaptive lighting system, the method comprising:
emitting a first luminous intensity distribution via a low-beam light module;
emitting a second luminous intensity distribution via a supplementary light module, the supplementary light module including a plurality of independently controlled pixels, wherein each pixel is based on a baseline reference of locations of regulatory points, further wherein the second luminous intensity distribution at least partially overlaps with the first luminous intensity distribution; and
controlling each pixel of said plurality of independently controlled pixels is based on a number of rotations applied to the first luminous intensity distribution.

### Claim 12 (depends on 11)

The method of claim 11, wherein controlling each pixel further includes deactivating one or more pixels when a plurality of associated controlled zones overlaps with respective associated regulatory points.

### Claim 13 (depends on 11)

The method of claim 11, wherein the first luminous intensity distribution differs from the second luminous intensity distribution.

### Claim 14 (depends on 1)

The headlamp assembly of claim 1, wherein a number of pixels of the supplementary module are turned off to avoid exceeding threshold values associated with measurement locations of the regulatory points.
