Patents by Inventor Cedric Launay

Cedric Launay 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).

  • Method of transmitting the power of a hybrid vehicle between a heat engine shaft and a wheel axle shaft of the vehicle
    Patent number: 8206261
    Abstract: The invention relates to a method of transmitting power between a shaft of a heat engine and a wheel axle shaft of a hybrid vehicle. The inventive method involves the use of: a power transmission device comprising an electric machine which is connected to (i) the heat engine by means of a clutch and (ii) a wheel axle shaft; and a starting system which is mechanically independent of the electric machine and which is connected to the heat engine. According to the invention, the heat engine is started by applying a torque to the shaft simultaneously using the starting system and the clutch.
    Type: Grant
    Filed: May 12, 2006
    Date of Patent: June 26, 2012
    Assignee: Peugeot Citroen Automobiles SA
    Inventors: Gaetan Rocq, Yvan Le Neindre, Cedric Launay
  • Method for Finding a Clutch Slip Point of a Hybrid Vehicle
    Publication number: 20110153134
    Abstract: The present invention essentially relates to a method for finding a slip point of a hybrid vehicle (1) having an electrically towed rear axle. In said method, the electrical machine (17), when starting the vehicle, is actuated to provide the vehicle drive, the engine (7) being turned off, the clutch (10) being open, and the transmission (8) being in neutral. Once the speed of the main shaft has reached a threshold (K?1), the acceleration of said main shaft is measured and stored as a reference value, and the closing of the clutch (10) is gradually controlled. Once it has been detected that the change in acceleration (?WAP/?t) of the main shaft relative to the reference value has reached a threshold (K?2), the position of the clutch (10) is stored in order to deduce therefrom the position of the slip point (PP).
    Type: Application
    Filed: September 4, 2009
    Publication date: June 23, 2011
    Applicant: PEUGEOT CITROEN AUTOMOBILES SA
    Inventors: Gaetan Rocq, Cedric Launay
  • Method of Transmitting the Power of a Hybrid Vehicle Between a Heat Engine Shaft and a Wheel Axle Shaft of the Vehicle
    Publication number: 20080200302
    Abstract: The invention relates to a method of transmitting power between a shaft (10) of a heat engine (2) and a wheel (6) axle shaft (12) of a hybrid vehicle. The inventive method involves the use of: a power transmission device (1) comprising an electric machine (4) which is connected to (i) the heat engine by means of a clutch (3) and (ii) a wheel (6) axle shaft (12); and a starting system (31) which is mechanically independent of the electric machine (4) and which is connected to the heat engine (2). According to the invention, the heat engine (2) is started by applying a torque to the shaft (10) simultaneously using the starting system (31) and the clutch (3).
    Type: Application
    Filed: May 12, 2006
    Publication date: August 21, 2008
    Applicant: PEUGEOT CITROEN AUTOMOBILES SA
    Inventors: Gaetan Rocq, Yvan Le Neindre, Cedric Launay