Continental Automotive Gmbh

Continental Autonomous Mobility Germany Gmbh

Continental Automotive France

David Guerrero

Boris Lugez

Andrea Laruelo

David Daurenjou

Vicente Poveda Carias

Jean-Baptiste Vimort

A method for determining the angular position of a vehicle including a towing vehicle, a towing platform articulated on the towing vehicle, and a trailer articulated on the towing platform. The method includes camera acquiring a first image in a first reference position of the vehicle, and detecting at least one characteristic point of the trailer in the first position. The camera acquires a second image in a second position of the vehicle, and detects the characteristic point in the second position, the detected characteristic point being the same for each position. A position of the characteristic point is estimated in the first position and the second position of the vehicle by minimizing a cost function based on an iteration of different values of the height of the characteristic point in the first position of the vehicle and of the characteristic point in the second position of the vehicle. The angle of rotation between the trailer and the towing platform is determined based on the estimated position of the characteristic point estimated during the estimation step.

Method for determining the angular position of a complex vehicle with two axes of rotation, and system configured to implement such a method

A system for determining at least one pitch angle of a trailer relative to a towing vehicle, the system including a camera mounted on the towing vehicle and capable of acquiring images of the trailer in which lines of the trailer parallel to the axis of the trailer are visible, and a computer configured to perform the following steps: implementing a line-detection algorithm on at least one image of the trailer acquired by the camera, detecting in the image the lines of the trailer parallel to the trailer axis, corresponding to vanishing lines, and deducing from the vanishing lines a position of the vanishing point, and from the coordinates of the vanishing point, determining at least one pitch angle of the trailer with respect to the towing vehicle.

System for determining the angular position of a trailer

A method for processing friction data for vehicle tires on road segments, implemented by a processing system including at least one computer and an interface for remote communication with a plurality of vehicles, the method including: acquiring, from the plurality of vehicles, friction data for tires of the vehicles on a plurality of road segments, each friction datum including at least: a maximum coefficient of friction available to the vehicle on the road segment, and information relating to the road segment; establishing, for each road segment, a distribution of the friction data obtained from the plurality of vehicles for the road segment; and determining a plurality of road types, each road type comprising a set of road segments, from a measurement of similarity between the distributions of friction data obtained for each road segment.

Determination of a coefficient of friction for a vehicle on a road

An image-processing method for filtering light pollution appearing in a video image stream acquired by a video camera. The method includes, for a current image of the video image stream, the steps of subtracting the background represented in the current image in order to obtain the foreground of the current image, determining a brightening matrix, determining a compensating matrix by restricting the values of the pixels of the determined brightening matrix, segmenting the determined brightening matrix, determining a mask from the segmented brightening matrix, applying the mask to the determined compensating matrix in order to obtain a filtering matrix, and filtering the foreground of the current image by applying the filtering matrix in order to decrease the zones of light pollution in the images of the image stream.

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Toulouse, France

David Guerrero