Patents by Inventor Frédéric Bretagnol

Frédéric Bretagnol 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).

  • Patent number: 10682987
    Abstract: The present invention concerns a device (1) for cleaning an optical sensor (3), in particular intended to equip a motor vehicle, comprising a nozzle (5) for dispensing a cleaning liquid, characterised in that the cleaning liquid dispensing nozzle (5) is a drip dispensing nozzle and is configured to deposit the cleaning liquid on the optical sensor (3) in individual drops.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: June 16, 2020
    Assignee: Valeo Systèmes d'Essuyage
    Inventors: Marcel Trebouet, Giuseppe Grasso, Grégory Kolanowski, Frédéric Bretagnol, Gilles Le-Calvez
  • Publication number: 20200101945
    Abstract: The invention relates to a device (4) for protecting an optical sensor (2) comprising: a protective casing (8) forming a cavity (11) able to at least partly accommodate the optical sensor comprising an optical surface (6), the protective casing comprising an optical element (12) facing the optical surface; a motor (14) configured to rotate the protective casing at speeds allowing the optical element to be cleaned by a centrifugal effect, the protective device being configured so as to have a movable part (52) and a fixed part (54). The protective device comprises a pressure balancing system comprising an air vent orifice (56) allowing fluid communication between the inside and the outside of the protective device, the air vent orifice being produced in the fixed part (54) of the protective device.
    Type: Application
    Filed: September 27, 2019
    Publication date: April 2, 2020
    Applicant: Valeo Systèmes d'Essuyage
    Inventors: Marcel Trebouet, Frédéric Bretagnol
  • Publication number: 20200017035
    Abstract: The invention relates to a viewing device (3) for a motor vehicle, comprising: an optical sensor (5) configured to capture at least one image of a road scene and a mounting (7) for the optical sensor (5). According to the invention: the optical sensor (5) is rotatably mounted on the mounting (7), and said device (3) also includes an actuator (9) configured to rotate the optical sensor (5). The invention likewise relates to a driving assistance system comprising such a device (3) and to a method for maintaining the visibility of the optical sensor (5) of said viewing device (3).
    Type: Application
    Filed: February 6, 2018
    Publication date: January 16, 2020
    Applicant: Valeo Systèmes d'Essuyage
    Inventors: Frédéric Bretagnol, Giuseppe Grasso, Grégory Kolanowski, Marcel Trebouet
  • Publication number: 20190381975
    Abstract: The subject matter of the present invention is a module (5) for cleaning an optical element protection device (3) intended to equip a motor vehicle, said protection device (3) having a surface of revolution configured to be arranged around the optical element. The cleaning module (5) includes at least one ring (51) configured to surround the protection device (3) and includes at least one wiping structure. The ring (51) is configured to be mobile in relative movement in translation along an axis of revolution (A2) of the ring (51) relative to the protection device (3) such that said at least one wiping structure (53) of the ring (51) is configured to wipe the surface of revolution of the protection device (3).
    Type: Application
    Filed: June 19, 2019
    Publication date: December 19, 2019
    Applicant: Valeo Systèmes d'Essuyage
    Inventors: Gérald Caillot, Giuseppe Grasso, Jean-François Rousseau, Marcel Trebouet, Frédéric Bretagnol, Jean-Michel Jarasson, Frédéric Giraud, Mehdi Belhaj, Jose Luis Herrada
  • Publication number: 20190329737
    Abstract: The invention concerns a protection device (3) for protecting an optical sensor (13) for a motor vehicle. According to the invention, the protection device (3) comprises: —a transparent optical element (9) mounted rotatably movable about an axis of rotation (A1), configured to be arranged upstream from an optical unit (14) of the optical sensor (13) such that the axis of rotation (A1) of same coincides with the optical axis (15), and —a motor (5) comprising a rotary shaft (51) configured to rotate about an axis of rotation (A2), and configured to rotate said optical element (9) such that the axis of rotation (A1) of said optical element (9) further coincides with the axis of rotation (A2) of the rotary shaft (51) of the motor (5). The invention also concerns a corresponding driver assistance system (1) and a cleaning method implementing such a protection device (3).
    Type: Application
    Filed: November 17, 2017
    Publication date: October 31, 2019
    Applicant: Valeo Systèmes d'Essuyage
    Inventors: Frédéric Bretagnol, Giuseppe Grasso, Grégory Kolanowski, Marcel Trebouet
  • Publication number: 20190315316
    Abstract: The invention concerns a device (100) for cleaning the optical surface (162) of at least one optical sensor (160) for a motor vehicle. The cleaning device (100) includes a source (110) for emitting a laser beam and means for guiding the laser beam onto at least a part of the optical surface (162) of an optical sensor (160) so as to clean it.
    Type: Application
    Filed: November 29, 2017
    Publication date: October 17, 2019
    Applicant: Valeo Systèmes d'Essuyage
    Inventors: Frédéric Bretagnol, Giuseppe Grasso, Marcel Trebouet
  • Publication number: 20190171004
    Abstract: The invention concerns a driver assistance system (1) comprising a device (2) for protecting an optical sensor (11) for a motor vehicle comprising a protective box (13) in which a housing (26) is provided that is configured to house an optical sensor (11), the device further comprising: a support (15) movably mounted on the protective box (13) and bearing a membrane (19) attached by its periphery to the support (15) and intended to be arranged opposite the optical sensor (11), the membrane (19) comprising an optically transparent material that is elastically deformable; and at least one actuator (21) borne by the protective box (13) and configured to move the support (15) bearing the membrane. The support (15), under the effect of the moving of the support (15) by the actuator (21), is configured to deform the membrane (19) between a resting position in which the membrane (19) is in a first state of tension and an active position in which the membrane (19) is in a second state of tension.
    Type: Application
    Filed: June 9, 2017
    Publication date: June 6, 2019
    Applicant: Valeo Systèmes d'Essuyage
    Inventors: Frédéric Bretagnol, Marcel Trebouet
  • Publication number: 20190162953
    Abstract: The present invention relates to a device 3 for protecting an optical sensor 13 for an automotive vehicle that is intended to be attached to the optical sensor, characterized in that the device includes: -a transparent optical element 9 exhibiting rotational symmetry and being rotatably mounted about an axis of rotation, configured to be positioned upstream of the optical sensor 13 so that the axis of rotation of the optical element 9 is merged with the optical axis 15 of the optical sensor 13; and -an actuator 5 that is coupled to the optical element 9 so as to rotate the optical element 9 in order to allow soiling to be removed by a centrifugal effect.
    Type: Application
    Filed: July 18, 2017
    Publication date: May 30, 2019
    Applicant: Valeo Systèmes d'Essuyage
    Inventors: Frédéric Bretagnol, Giuseppe Grasso, Grégory Kolanowski, Marcel Trebouet
  • Publication number: 20180334109
    Abstract: A device for protecting an optical sensor of a driver-assistance system for a motor vehicle, a corresponding driver-assistance system and a corresponding assembling process are disclosed. The optical sensor includes an optic and two assembled separate subassemblies. A first subassembly is mounted so as to be able to rotate about an axis of rotation and includes a housing that is configured to at least partially receive the optical sensor and an optical element that is configured to be placed upstream of the optic of the optical sensor. A second subassembly includes an actuator that is configured to drive the first subassembly to rotate.
    Type: Application
    Filed: May 16, 2018
    Publication date: November 22, 2018
    Applicant: Valeo Systèmes d'Essuyage
    Inventors: Marcel Trebouet, Frédéric Bretagnol, Giuseppe Grasso
  • Publication number: 20180335622
    Abstract: A device for an optical sensor for a motor vehicle and a corresponding driver-assistance system are disclosed. The optical sensor includes an optic. The device includes a housing that is mounted so as to be able to rotate around an axis of rotation and that has a compartment that is configured to accommodate the optical sensor, and an optical element that is securely fastened to the housing. The optical element has at least one planar surface that is configured to be placed in the field of view of the optical sensor. The device also includes and an actuator that is coupled to the housing in order to drive the housing and the optical element to rotate.
    Type: Application
    Filed: May 16, 2018
    Publication date: November 22, 2018
    Applicant: Valeo Systèmes d'Essuyage
    Inventors: Marcel Trebouet, Frédéric Bretagnol, Giuseppe Grasso, Frederic Gossele, Denis Garnier, Nicolas Pinchon
  • Publication number: 20180335505
    Abstract: The invention relates to a device (3) for protecting an optical sensor (13) for a motor vehicle, said optical sensor (13) comprising an optic (14). According to the invention, the protecting device (3) includes an optical element (9) that is configured to be placed upstream of the optic (14) of the optical sensor (13) and that has at least one surface (9a, 9b) of aspheric general shape. The invention also relates to a corresponding driver-assistance system.
    Type: Application
    Filed: May 16, 2018
    Publication date: November 22, 2018
    Applicant: Valeo Systèmes d'Essuyage
    Inventors: Frédéric Bretagnol, Denis Garnier, Nicolas Pinchon, Giuseppe Grasso, Marcel Trebouet
  • Patent number: 9969359
    Abstract: The invention relates to a wiping member (10) comprising an elastomer-based material, a coating being provided on at least part of an external surface of the material. At least part of the surface of the assembly formed by the elastomer-based material and the coating has an increased degree of cross-linking over at least one surface thickness of the assembly. The invention also relates to a windshield wiper blade and to a method for treating a wiping member.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: May 15, 2018
    Assignee: Valeo Systémes d'Essuyage
    Inventors: Alexis Braun, Frédéric Bretagnol, Severin Doupeux
  • Publication number: 20180086316
    Abstract: The present invention concerns a device (1) for cleaning an optical sensor (3), in particular intended to equip a motor vehicle, comprising a nozzle (5) for dispensing a cleaning liquid, characterised in that the cleaning liquid dispensing nozzle (5) is a drip dispensing nozzle and is configured to deposit the cleaning liquid on the optical sensor (3) in individual drops.
    Type: Application
    Filed: September 28, 2017
    Publication date: March 29, 2018
    Applicant: Valeo Systèmes d'Essuyage
    Inventors: Marcel Trebouet, Giuseppe Grasso, Grégory Kolanowski, Frédéric Bretagnol, Gilles Le-Calvez
  • Publication number: 20160297405
    Abstract: The invention relates to a wiper blade (10) for windscreen wiper, comprising a substrate made of material based on elastomer(s) covered at least partly by a coating having at least three superposed layers, referred to respectively as the inner layer, intermediate layer and outer layer, the inner layer forming a bonding primer for bonding to the intermediate layer and comprising a lubricating filler content of substantially zero and the intermediate layer having a non-zero lubricating filler content that is lower than that of the outer layer. The invention also relates to a process for obtaining such a blade (10).
    Type: Application
    Filed: March 31, 2016
    Publication date: October 13, 2016
    Applicant: VALEO SYSTEMES D'ESSUYAGE
    Inventors: FRÉDÉRIC BRETAGNOL, AMÉLIE NOEL
  • Publication number: 20140231242
    Abstract: An apparatus for treating a surface of an object comprises a vacuum chamber in which the object is intended to be placed, and means, in communication with the vacuum chamber, for treating the surface of the object, comprising at least two plasma generator. The apparatus also comprises means for controlling each generator independently of any other generator. These controlling means comprise means for activating/deactivating the generator. The invention also relates to a process for treating a surface of an object.
    Type: Application
    Filed: July 25, 2012
    Publication date: August 21, 2014
    Inventors: Marc Brassier, Frederic Moret, Frederic Bretagnol
  • Publication number: 20130283559
    Abstract: The invention relates to a wiping member (10) comprising an elastomer-based material, a coating being provided on at least part of an external surface of the material. At least part of the surface of the assembly formed by the elastomer-based material and the coating has an increased degree of cross-linking over at least one surface thickness of the assembly. The invention also relates to a windshield wiper blade and to a method for treating a wiping member.
    Type: Application
    Filed: December 14, 2011
    Publication date: October 31, 2013
    Applicant: VALEO SYSTÈMES D'ESSUYAGE
    Inventors: Alexis Braun, Frédéric Bretagnol, Severin Doupeux