Patents by Inventor Philippe CHEVREL

Philippe CHEVREL 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).

  • Publication number: 20240194360
    Abstract: A method for controlling a nuclear reactor includes acquiring current values of operating parameters of the reactor; and iteratively implementing the sub-steps of generating a sequence of injection of neutron poison and/or water; calculating an evolution in at least one magnitude characteristic of the state of the core of the nuclear reactor during this given time interval using a power program, current values of operating parameters and the injection sequence considered, the evolution being calculated using a predictive model of the core of the reactor; evaluating a cost function, using the calculated evolution; repeating the generating and calculating sub-steps until a convergence criterion of the cost function is met; and repeating the acquiring and the iteratively implementing steps with a time period less than 60 minutes.
    Type: Application
    Filed: April 14, 2022
    Publication date: June 13, 2024
    Inventors: Alain GROSSETETE, Guillaume DUPRE, Cyril FIALA, Philippe CHEVREL, Mohamed YAGOUBI
  • Patent number: 11682497
    Abstract: A method regulates operating parameters comprising at least the mean temperature of the core (Tm), and the axial power (AO) imbalance. The method includes development of a vector (US) of control values of the nuclear reactor by a supervisor (31) implementing a predictive control algorithm; development of a vector (uK) of corrective values of the nuclear reactor controls by a regulator (33) implementing a sequenced gain control algorithm; development of a vector (U) of corrected values of the commands of the nuclear reactor, by using the vector (US) of the values of the commands produced by the supervisor (31) and the vector (uK) of the corrective values of the commands produced by the regulator (33); and regulation of the operating parameters of the nuclear reactor, by controlling actuators using the vector (U) of the corrected values of the controls.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: June 20, 2023
    Assignee: FRAMATOME
    Inventors: Alain Grossetete, Lori Lemazurier, Philippe Chevrel, Mohamed Yagoubi
  • Publication number: 20220084706
    Abstract: A method regulates operating parameters comprising at least the mean temperature of the core (Tm), and the axial power (AO) imbalance.The method includes development of a vector (Us) of control values of the nuclear reactor by a supervisor (31) implementing a predictive control algorithm; development of a vector (uK) of corrective values of the nuclear reactor controls by a regulator (33) implementing a sequenced gain control algorithm; development of a vector (U) of corrected values of the commands of the nuclear reactor, by using the vector (US) of the values of the commands produced by the supervisor (31) and the vector (UK) of the corrective values of the commands produced by the regulator (33); and regulation of the operating parameters of the nuclear reactor, by controlling actuators using the vector (U) of the corrected values of the controls.
    Type: Application
    Filed: February 1, 2019
    Publication date: March 17, 2022
    Inventors: Alain GROSSETETE, Lori LEMAZURIER, Philippe CHEVREL, Mohamed YAGOUBI
  • Publication number: 20210323551
    Abstract: A method for implementing a closed loop of an advanced driving aid device for the lateral control of a motor vehicle includes synthesizing a controller of the closed loop by solving an optimization problem based on a bicycle model of the vehicle. A family of at least two bicycle models of the vehicle is established, these models having, with respect to one another, at least one dispersion chosen from among a dispersion of mass of the vehicle, a dispersion of drift rigidity on a drivetrain of the vehicle, a dispersion of the center of gravity of the vehicle, and a dispersion of the position of the matrix of inertia of the vehicle, the optimization problem being solved on the basis of all models of the family.
    Type: Application
    Filed: May 28, 2019
    Publication date: October 21, 2021
    Applicant: RENAULT s.a.s.
    Inventors: Pedro KVIESKA, Simon MUSTAKI, Francois FAUVEL, Philippe CHEVREL, Mohamed YAGOUBI