Valeo Vision

Ali Kanj

Constantin Prat

Hafid El Idrissi

Yasser Almehio

Matthieu Drezet

The invention provides a method for controlling a light pattern provided by an automotive lighting device of an automotive vehicle. The method includes providing a road profile, extracting road features from the road profile, dividing the matrix arrangement in row groups, assigning a different shifting value for each row group, each shifting value depending on the road features, dividing each row group in a first portion and a second portion, shifting the operation of the first portion of each row group of light sources according to the corresponding shifting value and create a third portion between the shifted first portion and the second portion of each row group.

Method for controlling a light pattern and automotive lighting device

A method for controlling a light pattern provided by an automotive lighting device of an automotive vehicle. The method includes providing a road profile, extracting road features from the road profile, dividing the matrix arrangement in row groups, assigning a different shifting value for each row group, each shifting value depending on the road features and dividing each row group in at least a first portion and a second portion. Each portion includes at least a boundary pixel which is in contact with the boundary pixel of an adjacent portion. The method further includes modifying the width of the first portion and the width of the second portion by shifting the position of the boundary pixels in each row group according to the corresponding shifting value and interpolating the luminous intensity values of the pixels belonging to the first and second portion.

A method for adapting a setpoint for a digital lighting unit, which is intended to be projected by a digital lighting unit of a motor vehicle, which includes a matrix light source and an optical system. The method includes a step of applying digital filtering to the digital setpoint. The filter used is capable of anticipating geometric aberrations induced by said optical system when projecting a digital setpoint.

Method for adapting setpoints for a digital lighting unit of a motor vehicle preliminary class

A method for controlling a lighting device of a motor vehicle including at least one lighting module having a plurality of light sources, each of the light sources being designed to emit a luminous pixel, and a controller able to selectively control each of the light sources by applying thereto an electrical signal having a parameter of a value determined for the emission of a luminous pixel of given brightness.

Method for controlling a lighting device for emitting a pixelated light beam

The invention relates to a method for controlling a luminous device of a motor vehicle arranged to emit a pixelated light beam in a preset emission region. The method includes receiving an instruction to emit a desired pixelated luminous function for each of the luminous modules. The instruction for creating a digital image forming one segment of the desired pixelated luminous function in a frame corresponding to the preset emission region of the luminous module, the digital image being independent of the types of light sources and of optical device of the luminous module. The method further correcting said created digital image depending on the types of light sources and of optical device of the luminous module. The method additionally emitting, with the luminous module, into the preset emission region, a pixelated light beam corresponding to the corrected digital image.

Method for controlling a luminous device with a view to emitting a pixelated light beam

The invention provides a method for correcting a first light pattern provided by a lighting device () with a matrix of light sources (). This method comprising the steps of obtaining a map of the light pattern divided in pixels (), associating a calibration power value to each pixel (), depending on the light intensity of each pixel and assigning a new power value to each pixel. Finally, a corrected light pattern is projected with the new power values. The invention also provides an automotive lighting device with a calibrator to perform the steps of this method and an automotive lighting assembly with an external calibrator to perform the steps of this method.

Method for correcting a light pattern, automotive lighting device and automotive lighting assembly

A method for adapting a digital lighting setpoint intended to be projected by a digital lighting unit for a motor vehicle including a matrix light source and an optical system. The method includes a step of applying a digital filtering to the digital setpoint. The filter used is capable of taking into account the interferences of light intensities between the elementary light sources of the matrix light source.

Method for adapting setpoints for a digital lighting unit of a motor vehicle

A method for correcting a first light pattern provided by a lighting device with a matrix of light sources. The method includes steps of providing some resolution data of the light sources, simulating a test map of the light pattern using the resolution data, and simulating distortion maps of the test map. Each distortion map is associated to a distortion factor. Also included is obtaining a real distorted light pattern, comparing the real distorted light pattern with the distortion maps, finding a distortion map which is the most similar to the real distorted map and applying a correction factor to correct the real distorted light pattern, thus obtaining a corrected light pattern. The correction factor is related to the distortion factor of the distortion map which is the most similar to the real distorted map.

The invention is related to a method for controlling a light pattern provided by an automotive lighting device of an automotive vehicle, wherein a dynamic portion of the light pattern is provided at least by a matrix arrangement of light sources. This method includes the steps of sensing a turn in a steering system of the automotive vehicle, dividing the dynamic portion in a first portion and a second portion, shifting the operation of the light sources associated to the first portion in the same direction as the sensed turn and create a third portion between the shifted first portion and the second portion. The invention also provides an automotive lighting device with control means to perform the steps of the method.

Method for controlling a light pattern using a matrix of light sources responsive to steering angle

A method for correcting a light pattern provided by a first lighting device and a second lighting device. The first lighting device projects a first light pattern and the second lighting device projects a second light pattern. There is an overlapping zone between the first light pattern and the second light pattern. The method includes the steps of, for each lighting device, dividing the light sources in groups, each group being associated to a projection distance, calculating an overlapping region as a function of the projection distance, calculating a number of affected light sources for each group as a function of a representative dimension of the overlapping region and attenuate the intensity of the light emitted by the affected light sources in each group of each lighting device, following a monotonic attenuation pattern from 100% attenuation in the first affected light source to 0% in the last affected light source. The invention also provides an automotive lighting device assembly with control means to perform the steps of this method.

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Bobigny, France

Ali Kanj