Patents by Inventor Stephanie Lefevre

Stephanie Lefevre has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230195830
    Abstract: The present technology pertains to measuring the quality of an uncertainty prediction provided by a traj ectory prediction algorithm. An AI/ML platform can receive data including predicted trajectories of objects received from the trajectory prediction algorithm and observed paths for the objects received from the plurality of sensors. The predicted trajectories indicate predicted locations of the objects at a plurality of time intervals, and uncertainty predictions reflecting an uncertainty about the location of the objects at each of the predicted time intervals. The AI/ML platform can further determine respective standard deviations of the observed paths of the objects relative to the respective uncertainty predictions and plots the respective standard deviations against an ideal distribution of path distributions relative to the predicted locations of the objects at the plurality of time intervals.
    Type: Application
    Filed: December 20, 2021
    Publication date: June 22, 2023
    Inventors: Siddharth Raina, Frank Jiang, Mircea Grecu, Stephanie Lefevre
  • Patent number: 10995715
    Abstract: A coil assembly in a fuel injector includes a magnetic core and; a winding wound around the core, the winding being overmoulded and forming a cylindrical overmoulding. An axial blind hole extends towards the interior of the coil assembly from a first surface to a distal end, the blind hole being suitable for housing at least one spring for loading a magnetic armature. The coil assembly is provided with a degassing hole passing through the core and the overmoulding from the blind axial hole to an axial outer cylindrical surface, the degassing hole being provided in the magnetic core and having a restriction that is arranged in a first section that is proximal to the blind axial hole.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: May 4, 2021
    Inventors: Philippe Legrand, Bruno Bimbenet, Stéphanie Lefevre
  • Publication number: 20190242344
    Abstract: A coil assembly in a fuel injector includes a magnetic core and; a winding wound around the core, the winding being overmoulded and forming a cylindrical overmoulding. An axial blind hole extends towards the interior of the coil assembly from a first surface to a distal end, the blind hole being suitable for housing at least one spring for loading a magnetic armature. The coil assembly is provided with a degassing hole passing through the core and the overmoulding from the blind axial hole to an axial outer cylindrical surface, the degassing hole being provided in the magnetic core and having a restriction that is arranged in a first section that is proximal to the blind axial hole.
    Type: Application
    Filed: August 21, 2017
    Publication date: August 8, 2019
    Inventors: Philippe Legrand, Bruno Bimbenet, Stéphanie Lefevre
  • Patent number: 9779624
    Abstract: The invention concerns a method of driving assistance for assisting a human driver in safely driving a vehicle called host vehicle, implemented by a processor on board of said host vehicle. The host vehicle comprises means for obtaining first information relative to the host vehicle and means for obtaining second information relative to at least one other vehicle in a neighborhood of the host vehicle, said first and second information being obtained at regular time instants, comprising triggering an intervention of a collision avoidance system. The method comprises a step (51) of intervention decision adapted to decide whether to trigger the intervention of the collision avoidance system at a current time instant (Tc) or to postpone said intervention decision at a later time instant (Tl) depending upon additional first and second information to be acquired between the current time instant (Tc) and the later time instant (Tl), said additional first and second information having an associated probability.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: October 3, 2017
    Assignees: Inria Institut National De Recherche En Informatique Et En Automatique, The Regents of the University of California
    Inventors: Stephanie Lefevre, Christian Laugier, Ruzena Bajcsy
  • Publication number: 20160275797
    Abstract: The invention concerns a method of driving assistance for assisting a human driver in safely driving a vehicle called host vehicle, implemented by a processor on board of said host vehicle. The host vehicle comprises means for obtaining first information relative to the host vehicle and means for obtaining second information relative to at least one other vehicle in a neighborhood of the host vehicle, said first and second information being obtained at regular time instants, comprising triggering an intervention of a collision avoidance system. The method comprises a step (51) of intervention decision adapted to decide whether to trigger the intervention of the collision avoidance system at a current time instant (Tc) or to postpone said intervention decision at a later time instant (Tl) depending upon additional first and second information to be acquired between the current time instant (Tc) and the later time instant (Tl), said additional first and second information having an associated probability.
    Type: Application
    Filed: October 24, 2014
    Publication date: September 22, 2016
    Inventors: Stephanie Lefevre, Christian Laugier, Ruzena Bajcsy
  • Publication number: 20160185347
    Abstract: The invention relates to a method for assessing the risk of collision between a first vehicle approaching an intersection and at least one second vehicle driving through said intersection, said first vehicle being provided with a measurement means and a computing means. The method according to the invention is mainly characterised in that same includes the following steps: a step of determining the respective positions of said first vehicle and each second vehicle, a step of estimating the intentions of the driver of said first vehicle and of each second vehicle, a step of estimating the need for the first vehicle and for each second vehicle to stop in accordance with the results provided by the two preceding steps and the traffic rules applicable to said intersection, and a step of estimating the risk of collision between the first vehicle and each second vehicle.
    Type: Application
    Filed: September 24, 2013
    Publication date: June 30, 2016
    Inventors: Stephanie Lefevre, Javier Ibanez-Guzman, Christian Laugier