Patents by Inventor Frederic Roudeau

Frederic Roudeau 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: 7877185
    Abstract: A device for controlling an automated transmission of a motor vehicle engine-transmission unit adapted to deliver a torque setpoint signal to be applied to wheels of the motor vehicle including two static and dynamic components produced based on input data delivered by an input unit. The input data includes a recorded list of parameters representing the driver's wishes, the motor vehicle state, and the motor vehicle surroundings. The device includes a first unit capable of calculating a dynamic torque component not adapted to a slope and/or load situation; a second unit for adaptation to the slope and/or load situation delivering a dynamic torque component adapted to the slope and/or load situation; a third unit capable of calculating a static torque component not adapted to the slope and/or load situation; and a fourth unit for adaptation to the slope and/or load situation delivering a static torque component adapted to the slope and/or load situation.
    Type: Grant
    Filed: September 5, 2005
    Date of Patent: January 25, 2011
    Assignee: Renault S.A.S.
    Inventors: Frederic Roudeau, Jean Bretheau, Vincent Vermuse
  • Patent number: 7844381
    Abstract: A device for controlling an automated transmission of a motor vehicle engine-transmission unit capable of delivering a torque setpoint signal to be applied to the motor vehicle wheels, including two static and dynamic components, produced based on input data delivered by an input unit including a recorded list of parameters representing the driver's wishes, the motor vehicle state, and the motor vehicle surroundings. The device includes a first unit capable of calculating a dynamic torque component not adapted to a cornering situation; a second unit capable of calculating a static torque component, connected to the input of the first unit; and a unit for adaptation to the come in situation delivering a static torque component adapted to the cornering situation in accordance with a list of predetermined input parameters.
    Type: Grant
    Filed: September 5, 2005
    Date of Patent: November 30, 2010
    Assignee: Renault s.a.s.
    Inventors: Frédéric Roudeau, Jean Bretheau, Vincent Vermuse
  • Publication number: 20100106354
    Abstract: A system for controlling a power propulsion unit of a hybrid type for a four-wheel-drive automotive vehicle that includes at least one electric motor part and at least one thermal engine part capable of driving the independent front and rear driving axles of the vehicle. The system includes a mechanism determining total torque set point from a request of the driver, a mechanism distributing the total torque set point, and a system optimizing the duty point, to dynamically determine the torques to be applied to each of the two driving axles and to optimize fuel consumption of the power propulsion group according to the drivability requested by the driver and driving conditions.
    Type: Application
    Filed: January 7, 2008
    Publication date: April 29, 2010
    Applicant: RENAULT S.A.S.
    Inventors: Francois Fauvel, Tariq Ouaguenouni, Frederic Roudeau
  • Patent number: 7706952
    Abstract: A method for controlling an automatic transmission of a power train for a motor vehicle, including producing a first set torque signal to be applied to the wheels, which represents wishes of the motor vehicle driver and that includes two components: a static component and a dynamic component. The dynamic component of the set signal is filtered according to at least two predetermined thresholds that define at least three distinct filtering zones. A filter of order n is used in the first and the third filtering zone and, in the second filtering zone, a maximum slope is imposed upon the dynamic component of the first set signal, the maximum slope being adjustable according to predetermined input data.
    Type: Grant
    Filed: May 30, 2005
    Date of Patent: April 27, 2010
    Assignee: Renault S.A.S.
    Inventors: Frederic Roudeau, Jean Bretheau, Thomas Turpin
  • Publication number: 20080177452
    Abstract: A control device for an automated transmission of a motor vehicle power train, able to deliver a torque setpoint signal applicable to the vehicle wheels and having two static and dynamic components that are set according to input data supplied by an input unit, and including a recorded list of parameters representing the driver's will, the motor vehicle state, and the environment thereof. The device includes a first unit for computing the dynamic component of a gross torque, a second unit for computing the static component of a gross torque, wherein the second unit is connected to the output of the first unit, and a unit for adaptation to a brake situation producing the static component of the torque adapted to the braking situation according to the list of input predetermined parameters.
    Type: Application
    Filed: September 5, 2005
    Publication date: July 24, 2008
    Inventors: Frederic Roudeau, Jean Bretheau, Vincent Vermuse
  • Publication number: 20080115993
    Abstract: A method for controlling automated transmission for a power train of a motor vehicle, including producing a first setpoint signal of a variable applicable to the vehicle wheels and including dynamic and static components formed taking into consideration input representative data of the motor vehicle characteristics, a drive's wish, and an environment of the vehicle, in selecting, according to the input data, one mode from at least two different operating modes able to transmit the setpoint signal. One operating mode corresponds to a torque creeping mode for transmitting the setpoint signal when the motor vehicle runs with a speed lower than a predetermined threshold and the brake pedal thereof is inactivated.
    Type: Application
    Filed: September 6, 2005
    Publication date: May 22, 2008
    Applicant: RENAULT S.A.S.
    Inventors: Frederic Roudeau, Jean Bretheau, Vincent Vermuse
  • Publication number: 20080065302
    Abstract: A device for controlling an automated transmission of a motor vehicle engine-transmission unit adapted to deliver a torque setpoint signal to be applied to wheels of the motor vehicle including two static and dynamic components produced based on input data delivered by an input unit. The input data includes a recorded list of parameters representing the drivers wishes, the motor vehicle state, and the motor vehicle surroundings. The device includes a first unit capable of calculating a dynamic torque component not adapted to a slope and/or load situation; a second unit for adaptation to the slope and/or load situation delivering a dynamic torque component adapted to the slope and/or load situation; a third unit capable of calculating a static torque component not adapted to the slope and/or load situation; and a fourth unit for adaptation to the slope and/or load situation delivering a static torque component adapted to the slope and/or load situation.
    Type: Application
    Filed: September 5, 2005
    Publication date: March 13, 2008
    Applicant: Renault S.A.S.
    Inventors: Frederic Roudeau, Jean Bretheau, Vincent Vermuse
  • Publication number: 20080015757
    Abstract: A method for controlling an automated transmission for a power train of a motor vehicle produces a first setpoint signal of a variable that is applicable to the vehicle wheels and that includes dynamic and static components formed taking into consideration input representative data of the motor vehicle characteristics, a driver's wish, and an environment of the vehicle, in selecting, according to the input data, one mode from at least two different operating modes able to transmit the setpoint signal. One operating mode corresponds to a torque creeping mode for transmitting the setpoint signal when the motor vehicle runs with a speed lower than a predetermined threshold and the brake pedal thereof is activated.
    Type: Application
    Filed: September 6, 2005
    Publication date: January 17, 2008
    Applicant: RENAULT S.A.S.
    Inventors: Frederic Roudeau, Jean Bretheau, Vincent Vermuse
  • Publication number: 20070282508
    Abstract: The invention concerns a device for controlling an automated transmission of a motor vehicle engine-transmission unit capable of delivering a signal of torque setpoint to be applied to the motor vehicle wheels, comprising two static (Cs) and dynamic (Cd) components, produced based on input data delivered by an input unit (1) comprising a recorded list of parameters representing the driver's wishes the motor vehicle state and the motor vehicle surroundings, comprising: a first unit (11) capable of calculating a dynamic torque component not adapted to the cornering situation (Cd_brut); a second unit (15) capable of calculating a static torque component (Cs_brut), connected to the input of said first unit (11) capable of calculating the dynamic torque component not adapted to the cornering situation; a unit for adaptation to the cornering situation (17) delivering a static torque component adapted to the cornering situation (Cs_vir) in accordance with a list of predetermined input parameters.
    Type: Application
    Filed: September 5, 2005
    Publication date: December 6, 2007
    Applicant: RENAULT S.A.S.
    Inventors: Frederic Roudeau, Jean Bretheau, Vincent Vermuse
  • Publication number: 20070276571
    Abstract: A motor vehicle power train control device capable of furnishing set signals of torque applied to wheels of the motor vehicle. The control device includes a mechanism to generate a signal representing a limitation of variation in speed of a heat engine integrated in a power train capable of reducing variations that are disturbing with regard to acoustics of the power train, and includes a mechanism to determine an operating point of the power train in an optimal operating range according to the signal that represents limitation of speed. The mechanism for generating the signal that represents a limitation of variation in the speed of the heat engine integrated in the power train is furnished, at an input, by parameters that represent characteristics of the motor vehicle and by parameters that represent the driver's wishes.
    Type: Application
    Filed: May 30, 2005
    Publication date: November 29, 2007
    Applicant: RENAULT S.A.S
    Inventors: Frederic Roudeau, Jean Bretheau, Vincent Vermuse
  • Publication number: 20070250239
    Abstract: A method for controlling an automatic transmission of a power train for a motor vehicle, including producing a first set torque signal to be applied to the wheels, which represents wishes of the motor vehicle driver and that includes two components: a static component and a dynamic component. The dynamic component of the set signal is filtered according to at least two predetermined thresholds that define at least three distinct filtering zones. A filter of order n is used in the first and the third filtering zone and, in the second filtering zone, a maximum slope is imposed upon the dynamic component of the first set signal, the maximum slope being adjustable according to predetermined input data.
    Type: Application
    Filed: May 30, 2005
    Publication date: October 25, 2007
    Applicant: RWNAULT S.A.S.
    Inventors: Frederic Roudeau, Jean Bretheau, Thomas Turpin
  • Publication number: 20070244616
    Abstract: An automatic transmission of a power train for a motor vehicle capable of producing a set operating speed and a set power train control to attain an engine speed, according to a torque applied to wheels that is adapted to wishes of the driver. The device includes: an input unit that furnishes input data; a control unit having at least two modules according to two distinct driving modes, an automatic mode and a manual mode with pulse control; a processing module for processing signals furnished by a motor vehicle speed control; a selection module that receives signals from the processing module and from the motor vehicle speed control and capable of furnishing a selection signal (mode).
    Type: Application
    Filed: May 30, 2005
    Publication date: October 18, 2007
    Applicant: RENAULT S.A.S.
    Inventors: Frederic Roudeau, Thomas Turpin
  • Publication number: 20070219687
    Abstract: A device for controlling an automatic gearbox for the power train of a motor vehicle includes a first computing device for driving heat engine of the motor vehicle power train and a second computing device for driving the heat engine and the motor vehicle automatic gear box, which is connected to the first computing device by a communications network. The control device also includes an interpretation module for generating a torque applied on the vehicle wheels and including a dynamic component, a static component, a second optimization module, and a third translation module. The first computing device for driving the heat engine includes the first interpretation module, the second optimization module, and the second computing module for driving the heat engine and the automatic gearbox includes the third translation unit.
    Type: Application
    Filed: July 13, 2005
    Publication date: September 20, 2007
    Applicant: Renault S.A.S.
    Inventor: Frederic Roudeau