Patents by Inventor Nicolas Fremau

Nicolas Fremau 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: 10479188
    Abstract: A hybrid transmission is for a motor vehicle provided with a heat engine and a main drive electric machine. The transmission includes two concentric input shafts connected to a crankshaft of the heat engine and to the electric machine with no disconnect clutch, an output shaft connected to wheels of the vehicle by a differential, and a shaft for transferring movement from an input shaft to the output shaft and for coupling the input shafts. The electric machine is arranged at the end opposite the input shafts relative to the heat engine.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: November 19, 2019
    Assignees: RENAULT s.a.s., NISSAN MOTOR Co., Ltd.
    Inventors: Nicolas Fremau, Arnard Villeneuve, Ahmed Ketfi-Cherif, Antoine Vignon
  • Publication number: 20170129323
    Abstract: A hybrid transmission is for a motor vehicle provided with a heat engine and a main drive electric machine. The transmission includes two concentric input shafts connected to a crankshaft of the heat engine and to the electric machine with no disconnect clutch, an output shaft connected to wheels of the vehicle by a differential, and a shaft for transferring movement from an input shaft to the output shaft and for coupling the input shafts. The electric machine is arranged at the end opposite the input shafts relative to the heat engine.
    Type: Application
    Filed: May 21, 2015
    Publication date: May 11, 2017
    Applicants: RENAULT s.a.s., NISSAN MOTOR CO., Ltd.
    Inventors: Nicolas FREMAU, Arnard VILLENEUVE, Ahmed KETFI-CHERIF, Antoine VIGNON
  • Patent number: 9453458
    Abstract: An electrical architecture of a hybrid motor vehicle including a combustion engine driving an alternator that recharges a low-voltage on-board battery connected to a starter of and to a vehicle on-board network, an electric traction machine powered by a high-voltage traction battery, and a hybrid transmission including a coupling mechanism that can occupy at least a first position in which the combustion engine is uncoupled from the drive train connecting the electric machine to vehicle wheels, a second position in which the wheels are driven by the combustion engine with or without top-up from the electric machine, and a third position in which the combustion engine and the electric machine are coupled to combine their respective torques, bound for the wheels. The combustion engine and the alternator constitute an electricity generator configured to supply energy requirements of the traction electric machine in an electric mode.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: September 27, 2016
    Assignee: RENAULT S.A.S.
    Inventors: Antoine Vignon, Nicolas Fremau, Sid-Ali Randi
  • Patent number: 9410601
    Abstract: A hybrid transmission for a motor vehicle including a heat engine and a driving electrical machine, including two concentric primary shafts, each of which includes at least one intermediate drive on a secondary shaft connected to wheels of the vehicle. The transmission includes a first mechanism for coupling the two primary shafts together, and capable of assuming at least three positions, of positions in which: the heat engine is separated from the drive train connecting the electrical machine to the wheels; the heat engine drives the wheels with or without the assistance of the electrical machine; and the heat engine and the electrical machine are coupled together to add respective torques thereof to the wheels.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: August 9, 2016
    Assignee: RENAULT s.a.s.
    Inventors: Nicolas Fremau, Antoine Vignon, Sid-Ali Randi, Ahmed Ketfi-Cherif
  • Patent number: 9381905
    Abstract: A hybrid transmission for a motor vehicle including a heat engine and electric drive machine, including two primary shafts respectively connected to the heat engine and electric machine, each supporting at least one intermediate drive on a first secondary shaft connected to wheels via a differential and a second secondary shaft sending motion of a primary shaft to the differential. A first coupling between the two primary shafts can occupy at least three positions of: the heat engine is uncoupled from the drive train connecting the electric machine to the wheels, or coupled by the second secondary shaft; the primary shaft connected to the heat engine is coupled to the first secondary shaft to drive the wheels with or without support of the electric machine; the primary shaft connected to the heat engine is coupled to the primary shaft connected to the electric machine, to add respective torques thereof.
    Type: Grant
    Filed: September 18, 2012
    Date of Patent: July 5, 2016
    Assignee: RENAULT s.a.s.
    Inventors: Nicolas Fremau, Antoine Vignon
  • Publication number: 20140315681
    Abstract: A hybrid transmission for a motor vehicle including a heat engine and electric drive machine, including two primary shafts respectively connected to the heat engine and electric machine, each supporting at least one intermediate drive on a first secondary shaft connected to wheels via a differential and a second secondary shaft sending motion of a primary shaft to the differential. A first coupling between the two primary shafts can occupy at least three positions of: the heat engine is uncoupled from the drive train connecting the electric machine to the wheels, or coupled by the second secondary shaft; the primary shaft connected to the heat engine is coupled to the first secondary shaft to drive the wheels with or without support of the electric machine; the primary shaft connected to the heat engine is coupled to the primary shaft connected to the electric machine, to add respective torques thereof.
    Type: Application
    Filed: September 18, 2012
    Publication date: October 23, 2014
    Applicant: RENAULT s.a.s.
    Inventors: Nicolas Fremau, Antoine Vignon
  • Publication number: 20140290592
    Abstract: An electrical architecture of a hybrid motor vehicle including a combustion engine driving an alternator that recharges a low-voltage on-board battery connected to a starter of and to a vehicle on-board network, an electric traction machine powered by a high-voltage traction battery, and a hybrid transmission including a coupling mechanism that can occupy at least a first position in which the combustion engine is uncoupled from the drive train connecting the electric machine to vehicle wheels, a second position in which the wheels are driven by the combustion engine with or without top-up from the electric machine, and a third position in which the combustion engine and the electric machine are coupled to combine their respective torques, bound for the wheels. The combustion engine and the alternator constitute an electricity generator configured to supply energy requirements of the traction electric machine in an electric mode.
    Type: Application
    Filed: May 25, 2012
    Publication date: October 2, 2014
    Applicant: RENAULT S.A.S.
    Inventors: Antoine Vignon, Nicolas Fremau, Sid-Ali Randi
  • Publication number: 20140165780
    Abstract: A hybrid transmission for a motor vehicle including a heat engine and a driving electrical machine, including two concentric primary shafts, each of which includes at least one intermediate drive on a secondary shaft connected to wheels of the vehicle. The transmission includes a first mechanism for coupling the two primary shafts together, and capable of assuming at least three positions, of positions in which: the heat engine is separated from the drive train connecting the electrical machine to the wheels; the heat engine drives the wheels with or without the assistance of the electrical machine; and the heat engine and the electrical machine are coupled together to add respective torques thereof to the wheels.
    Type: Application
    Filed: March 29, 2012
    Publication date: June 19, 2014
    Applicant: RENAULT s.a.s.
    Inventors: Nicolas Fremau, Antoine Vignon, Sid-Ali Randi, Ahmed Ketfi-Cherif