Patents by Inventor Sebastien Chanson

Sebastien Chanson 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: 7582033
    Abstract: An infinitely variable transmission with power shunting having at least two operating modes, whereof the components are distributed between two power paths connecting in parallel the heat engine to the vehicle wheels, including at least three planetary gear trains, two electrical machines, at least one reduction stage, and a control distributing differently the power between the two power paths based on the operating mode thereof.
    Type: Grant
    Filed: November 6, 2003
    Date of Patent: September 1, 2009
    Assignee: Renault S.A.S.
    Inventors: Ahmed Kefti-Cherif, Marc Picard, Michel Buannec, Sebastien Chanson
  • Patent number: 7220199
    Abstract: An infinitely variable power branching transmission with first and second operating modes, whereof the components are distributed between two power paths connecting in parallel an engine to vehicle wheels. At least two planetary trains, two electrical machines, a reduction stage, and a control orient differently the power between the transmission input and output based on the operating mode thereof. Two reduction stages are arranged in parallel between the two planetary trains on the same power path, the two reduction stages being respectively urged in the first and in the second operating transmission mode.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: May 22, 2007
    Assignee: Renault S.A.S.
    Inventors: Pierre Anthoine, Magali Rouge, Sebastien Chanson, Ahmed Kefti-Cherif, Keyvan Kergar
  • Publication number: 20060111211
    Abstract: The invention concerns an infinitely variable transmission with power shunting having at least two operating modes, whereof the components are distributed between two power paths connecting in parallel the heat engine (130) to the vehicle wheels (133), said means including at least three planetary gear trains (137, 138, 141, 142), two electrical machines (131, 132), at least one reduction stage (136, 139, 140, 143), and control means distributing differently the power between the two power paths based on the operating mode thereof.
    Type: Application
    Filed: November 6, 2003
    Publication date: May 25, 2006
    Applicant: Renault S.A.S.
    Inventors: Ahmed Kefti-Cherif, Marc Picard, Michel Buannec, Sebastien Chanson
  • Publication number: 20040157693
    Abstract: The invention concerns an infinitely variable power branching transmission with two operating modes, whereof the components are distributed between two power paths connecting in parallel the heat engine (1) to the vehicle wheels (3), said means including at least two planetary trains (5, 6) two electrical machines (2, 4), a reduction stage (7), and control means orienting differently the power between the transmission input and output based on the operating mode thereof. The invention is characterised in that it comprises two reduction stages (7) arranged in parallel between the two trains (5, 6) on the same power path, said two stages being respectively urged in the first and in the second operating transmission mode.
    Type: Application
    Filed: March 3, 2004
    Publication date: August 12, 2004
    Inventors: Pierre Anthoine, Magali Rouge, Sebastien Chanson, Ahmed Kefti-Cherif, Keyvan Kergar