公开(公告)号：US20220264714A1

公开(公告)日：2022-08-18

申请号：US17623116

申请日：2020-06-29

Applicant: VALEO VISION

Inventor： Olivier VALORGE ,  Thomas GIRAUD-SAUVEUR ,  Marjaneh KAZEMI ,  Guillaume ZANTE

IPC: H05B45/18 ,  H05B45/46 ,  F21S41/153 ,  F21S43/15 ,  H05B45/325

Abstract: The invention concerns a motor vehicle light assembly comprising a pixelated light emitting diode designed to project, from the motor vehicle, a predefined image, and a device for controlling the pixelated light emitting diode, the pixelated light-emitting diode comprising a plurality of elementary diodes supplied with a common DC current and respectively driven by a pulse-width modulation signal of the supply common DC current, the pixelated light-emitting diode comprising a temperature sensor, and the control device being configured to modify the pulse-width modulation signal depending on a temperature of the pixelated light emitting diode and/or of one or more elementary diodes.

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

Inventor： Hafid EL IDRISSI ,  Guillaume ZANTE ,  Olivier VALORGE ,  Thomas GIRAUD-SAUVEUR ,  Marjaneh KAZEMI ,  Sebastian KRICK

IPC: H05B45/3725 ,  H05B45/14 ,  H05B45/18

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.

公开(公告)号：US20220399814A1

公开(公告)日：2022-12-15

申请号：US17769242

申请日：2020-10-14

Applicant: VALEO VISION

Inventor： Sebastian KRICK ,  Guillaume ZANTE ,  Thomas GIRAUD-SAUVEUR ,  Dominique BODZIANY

IPC: H02M3/158 ,  H05B45/3725

Abstract: A motor vehicle lighting system includes a light source, a multi-phase interleaved power converter having a plurality of selectively activatable elementary converters, each of which is configured to generate an electrical signal having its own phase. The power converter is designed to supply electrical power to the light source, and controller is designed to selectively control each of the elementary converters of the power converter. The controller is designed to receive an emission command for the emission of a desired light beam by the light source and to activate a strictly necessary number of elementary converters of the power converter such that the power converter supplies, to the light source, an electrical power needed to emit the desired light beam.