LIGHT-EMITTING DEVICE FOR A MOTOR VEHICLE

    公开(公告)号:US20250081303A1

    公开(公告)日:2025-03-06

    申请号:US18721943

    申请日:2022-12-26

    Applicant: VALEO VISION

    Abstract: The invention proposes a luminous device involving a converter intended to supply power to a pixelated light source controlled by electric current. The device makes it possible to reduce power losses and to reduce the risk of the elementary light sources of the pixelated light source overheating. By using a control loop and measuring means which make it possible to directly or indirectly measure a value which is indicative of the voltage drop at the terminals of at least one current source of the pixelated light source, it becomes possible to dynamically adapt the voltage delivered by the converter circuit.

    METHOD FOR MANAGING IMAGE DATA, AND VEHICLE LIGHTING SYSTEM

    公开(公告)号:US20230177731A1

    公开(公告)日:2023-06-08

    申请号:US17919905

    申请日:2021-04-22

    Applicant: VALEO VISION

    CPC classification number: G06T9/00 B60Q1/143 B60Q1/0023 B60Q2400/40

    Abstract: The invention relates to a method for managing image data in an motor vehicle lighting system, the lighting system including at least one lighting module intended to project light beams generated on the basis of data relating to the selection of at least one image. The method including receiving an instruction to activate at least one image to be projected, converting the original image into N grey levels, determining, for each pixel in each row in the matrix, whether the pixel under analysis is a significant point of inflection, storing the pixel under analysis as a compressed pixel in a list when the pixel under analysis is considered to be a significant point of inflection, and transmitting the list to the at least one lighting module so that it is able to project a resulting image.

    LIGHTING SYSTEM COMPRISING A PIXELATED LIGHT SOURCE AND A CURRENT SENSOR

    公开(公告)号:US20230055821A1

    公开(公告)日:2023-02-23

    申请号:US17765049

    申请日:2020-10-14

    Applicant: VALEO VISION

    Abstract: A lighting system for a motor vehicle with a pixelated light source having a plurality of selectively activatable elementary light sources is described. The activation of each elementary light source being controlled exclusively by a switch assigned to the elementary light source. A power converter designed to supply an electrical power to the pixelated light source and a controller designed to control the voltage supplied by the power converter and to control the switches controlling the activation of the elementary light sources. The lighting system also includes an electrical current sensor designed to measure the electrical current supplied by the power converter to the pixelated light source and to transmit information relating to said measured current to the controller.

    METHOD FOR OPERATING AN AUTOMOTIVE ARRANGEMENT AND AUTOMOTIVE ARRANGEMENT

    公开(公告)号:US20220232678A1

    公开(公告)日:2022-07-21

    申请号:US17609554

    申请日:2020-05-27

    Applicant: VALEO VISION

    Abstract: This invention provides a method for operating an automotive lighting device comprising at least one solid-state light source. This method comprises the steps of providing a plurality of sensors, configured to provide some device data, provide a control unit configured to receive and process the device data, generate an estimated condition of the lighting device based on the device data and controlling an operation parameter of the automotive lighting device using the estimated condition. The invention also provides a data processing element and a computer program to carry out this method and an automotive lighting device comprising a control unit which carries out this method.

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