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US 12,742,533 B2Granted
Method and device to derate a light system
AssigneeValeo Vision
InventorColby Darlage
Life of this patent
Estimating the term…
Abstract
A light system with a plurality of light sources configured to generate light that when located within a vehicle form a beam pattern; and a controller in communication with the plurality of light sources and configured to control the plurality of light sources. The beam pattern is divided into two or more zones and the controller is configured to derate one or more of the plurality of light sources so that the beam pattern is changed by the controller derating the one or more of the plurality of light sources.
Claims20
A light system comprising:
- a plurality of light sources configured to generate light that when located within a vehicle form a beam pattern;
- and
- a controller in communication with the plurality of light sources and configured to control the plurality of light sources;
- wherein the beam pattern is divided into two or more zones and the controller is configured to derate one or more of the plurality of light sources so that the beam pattern is changed by the controller derating the one or more of the plurality of light sources by a predetermined amount to reduce an amount of light produced so that an amount of power and/or an amount of current are reduced to vary current consumed, heat produced, or both;
- wherein the two or more zones comprise:
- a first outer zone that extends in a first direction that is outward relative to the light sources, the first outer zone is formed by two or more light sources of the plurality of light sources and at least one of the plurality of light sources are derated by the controller;
- a first center zone that extends in a second direction that is directly forward to the light sources;
- and
- a first middle zone that extends in a third direction that is located between the first outer zone and the first center zone;
- and
- wherein the predetermined amount is about 0.1 percent or more and about 5 percent or less relative to an amount of current when the plurality of light sources are free of being derated.
8 more elements
A light system comprising:
- one or more first reflectors;
- one or more first light sources configured to direct light at the one or more first reflectors to direct light into a first zone or a first sub-zone;
- one or more second reflectors;
- one or more second light sources configured to direct light at the one or more second reflectors to direct light into a second zone or a second sub-zone;
- and
- a controller configured to:
- provide current to the one or more first light sources and the one or more second light sources of the light system so that a beam pattern including the first zone or the first sub-zone and the second zone or the second sub-zone are formed around a vehicle that houses the light system;
- measure a current or temperature of the light system;
- and
- derate the one or more first light sources so that a shape of the beam pattern in the first zone or the first sub-zone, a brightness of the beam pattern in the first zone or the first sub-zone, or both is reduced relative to the second zone or the second sub-zone, wherein the second zone or the second sub-zone is located proximate to the vehicle relative to the first zone or the first sub-zone.
7 more elements
A process comprising:
- generating a beam pattern with a plurality of lights within a light system of a vehicle, the beam pattern comprising:
- a first zone or a first sub-zone, and
- a second zone or a second sub-zone;
- and
- derating one or more of the plurality of lights so that a shape of the beam pattern, a brightness of the beam pattern, or both in the first zone or the first sub-zone are changed by a predetermined amount to reduce an amount of light produced so that an amount of power and/or an amount of current are reduced to vary current consumed, heat produced, or both;
- and
- sequentially derating the light system until temperature of the light system stabilizes or drops below a predetermined maximum temperature;
- wherein some of the plurality of lights remain unchanged so that the second zone or the second sub-zone remains unchanged when one or more of the plurality of lights are derated.
5 more elements
Dependencies are inferred from the claim text.