# US 2017/0290122 A1 · Light device in at least two parts for a motor vehicle

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- Number: US 2017/0290122 A1
- Document ID: US20170290122A1
- Status: Published application
- Kind: A1
- Application number: 15/476,201
- Filed: 2017-03-31
- Published: 2017-10-05
- Earliest claimed: 2016-03-31
- Assignees: Valeo Vision
- Applicants: Valeo Vision
- Inventors: Mathieu GABORIEAU
- Web page: https://patentgrep.com/patent/US20170290122A1

## CPC

- H05B 45/10: Controlling the intensity of the light
- B60Q 1/2607: {comprising at least two indicating lamps}
- B60Q 1/304: {Adaptations of signalling devices having a part on the vehicle body and another on the boot door}
- B60Q 1/44: for indicating braking action {or preparation for braking, e.g. by detection of the foot approaching the brake pedal}
- F21S 43/19: Attachment of light sources or lamp holders
- B60Q 1/2619: {built in the vehicle body}
- F21Y 2115/10: Light-emitting diodes [LED]
- H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- 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
- F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED

## Abstract

The invention proposes a device and a method which make it possible to manage the light fluxes emitted respectively by fixed and mobile parts of a light device for a motor vehicle. It is noteworthy that the management of the light fluxes takes into account the relative position between the different parts of the light device.

## Claims

### Claim 1

A light device for a motor vehicle, comprising at least two light sources, of which at least one first source is intended to be arranged on a first part of the chassis of the motor vehicle, and at least one second source is intended to be arranged on a second part of the chassis, such that the first and the second sources are capable of assuming at least two distinct and predetermined relative positions (P, P′) relative to one another,
wherein the device comprises means for controlling the light flux from the light sources, configured to control the emission of different light fluxes by the light sources, according to the relative position of the first and of the second sources, and
wherein the control means are configured to control the two light sources according to the relative position of the first and of the second sources such that, for at least one first predetermined relative position, the first light source participates in the production of a first predetermined regulatory light function of the motor vehicle and the second light source participates in the production of a second predetermined regulatory light function of the motor vehicle distinct from the first predetermined regulatory light function and such that, for at least one second predetermined relative position, the first light source participates in the production of the second predetermined regulatory light function.

### Claim 2 (depends on 1)

The device according to claim 1, wherein the device comprises means capable of obtaining a signal indicative of the relative position of the first and second sources.

### Claim 3 (depends on 1)

The device according to claim 1, wherein the means for controlling the light flux are configured to control the first and second light sources such that these sources, when they are in a first relative position, together emit a first overall light flux capable of producing a first predetermined regulatory light function.

### Claim 4 (depends on 1)

The device according to claim 1, wherein the means for controlling the light flux are configured to control the first source such that the first source emits a light flux of a first intensity when the indicated relative position corresponds to the first predetermined position (P), and a flux of a second intensity when the indicated relative position corresponds to the second predetermined position (P′), the first intensity being lower than the second intensity.

### Claim 5 (depends on 1)

The device according to claim 1, wherein the means for controlling the light flux are configured to control the second source such that the second source emits a light flux of a first intensity when the indicated relative position corresponds to the first predetermined position (P), and a flux of a second intensity when the indicated relative position corresponds to the second predetermined position (P′), the first intensity being higher than the second intensity.

### Claim 6 (depends on 1)

The device according to claim 1, wherein the means for controlling the light flux are configured to control the second source such that the second source emits a light flux of a first intensity when the indicated relative position corresponds to the first predetermined position (P), and a flux of a second intensity when the indicated relative position corresponds to the second predetermined position (P′), the first intensity being lower than the second intensity.

### Claim 7 (depends on 1)

The device according to claim 1, wherein the means for controlling the light flux are configured to control the first and second light sources such that the sum of the first intensities of the light flux emitted by these sources is lower than or equal to a higher predetermined regulatory light intensity.

### Claim 8 (depends on 1)

The device according to claim 1, wherein the means for controlling the light flux are configured to control the first and second light sources such that the sum of the second intensities of the light flux emitted by these sources is higher than or equal to a lower predetermined regulatory light intensity.

### Claim 9 (depends on 4)

The device according to claim 4, wherein the means for controlling the light flux are configured such that the lower light intensity of the first 210, and of the second sources is a minimum intensity, for example zero, and in that the higher intensity of the first and second sources is a maximum intensity.

### Claim 10 (depends on 3)

The device according to claim 3, wherein the means for controlling the light flux are configured such that the first and/or the second source emits a flux of an intensity lying between the lower intensity and the higher intensity, when the indicated position is an intermediate position between the first position (P) and the second predetermined position (P′).

### Claim 11 (depends on 3)

The device according to claim 3, wherein one of the first source and/or the second source is mobile between the first and the second predetermined positions, the other being fixed, and in that the means for controlling the light flux are configured such that the mobile source emits a flux of an intensity which is a function of an intermediate position between the first position (P) and the second predetermined position (P′).

### Claim 12 (depends on 1)

Motor vehicle equipped with a light device, wherein the light device corresponds to the device according to claim 1.

### Claim 13 (depends on 12)

Motor vehicle according to claim 12, wherein the first light source is arranged on a rear wing of the chassis, and in that the second light source is arranged on a face of the trunk lid of the vehicle, which is mobile relative to the rear wing of the chassis.

### Claim 14 (depends on 13)

Motor vehicle according to claim 13, wherein the first predetermined position corresponds to the closed position of the trunk lid, and in that the second predetermined position corresponds to the open position of the trunk lid.

### Claim 15

A method for managing the light flux in a light device for a motor vehicle, wherein the method comprises the following steps:
providing a light device comprising at least two light sources, of which at least one first source is intended to be arranged on a first part of the chassis of the motor vehicle, and at least one second source is intended to be arranged on a second part of the chassis, such that the first and second sources are capable of assuming at least two distinct and predetermined relative positions relative to one another;
obtaining a signal indicative of the relative position of the first and second sources using means capable of obtaining such a signal;
controlling the two light sources such that, according to the relative position of the first and second sources such that, for at least one first predetermined relative position, the first light source participates in the production of a first predetermined regulatory light function of the motor vehicle and the second light source participates in the production of a second predetermined regulatory light function of the motor vehicle distinct from the first predetermined regulatory light function and such that, for at least one second predetermined relative position, the first light source participates in the production of the second predetermined regulatory light function, the position being indicated by said signal;
powering at least one of the light sources so as to emit different light fluxes according to the relative position of the first and second sources, the position being indicated by said signal.

### Claim 16 (depends on 2)

The device according to claim 2, wherein the means for controlling the light flux are configured to control the first and second light sources such that these sources, when they are in a first relative position, together emit a first overall light flux capable of producing a first predetermined regulatory light function.

### Claim 17 (depends on 3)

The device according to claim 3, wherein the means for controlling the light flux are configured to control the first source such that the first source emits a light flux of a first intensity when the indicated relative position corresponds to the first predetermined position (P), and a flux of a second intensity when the indicated relative position corresponds to the second predetermined position (P′), the first intensity being lower than the second intensity.

### Claim 18 (depends on 4)

The device according to claim 4, wherein the means for controlling the light flux are configured to control the second source such that the second source emits a light flux of a first intensity when the indicated relative position corresponds to the first predetermined position (P), and a flux of a second intensity when the indicated relative position corresponds to the second predetermined position (P′), the first intensity being higher than the second intensity.

### Claim 19 (depends on 4)

The device according to claim 4, wherein the means for controlling the light flux are configured to control the second source such that the second source emits a light flux of a first intensity when the indicated relative position corresponds to the first predetermined position (P), and a flux of a second intensity when the indicated relative position corresponds to the second predetermined position (P′), the first intensity being lower than the second intensity.

### Claim 20 (depends on 6)

The device according to claim 6, wherein the means for controlling the light flux are configured to control the first and second light sources such that the sum of the first intensities of the light flux emitted by these sources is lower than or equal to a higher predetermined regulatory light intensity.