Patents by Inventor Marc Rambert

Marc Rambert 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: 20230366417
    Abstract: A method for controlling a hydraulic system for actuating a drive train device of a drive train of a motor vehicle includes a first volumetric flow a pressure medium being provided by an electrically operated pump, and a slave cylinder piston of a slave cylinder being actuated along an actuation path, in a manner controlled by a switch valve, via a second volumetric flow generated from the first volumetric flow. A leakage in the hydraulic system is determined from a comparison of the first and second two volumetric flows.
    Type: Application
    Filed: September 14, 2021
    Publication date: November 16, 2023
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Marc Rambert, Nicolas Leriche
  • Patent number: 10496524
    Abstract: A Remote Test Separation (RTS) system comprising an original software product instrumented for testing and a shared memory accessible to the original software product, the shared memory including a plurality of coverage counters. The RTS system further comprising an agent, capable of accessing the shared memory, the agent to read the plurality of coverage counters, the agent to read the plurality of coverage counters at an end of a test, and write coverage data to another memory. The RTS system runs a plurality of tests without interruption, and generates coverage data associated with a plurality of sequential tests and records the associations between lines of code and an associated test.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: December 3, 2019
    Assignee: Synopsys, Inc.
    Inventors: Jonathan Clark, Darren Kennedy, Sylvain François, Marc Rambert, Scott McPeak, Marat Boshernitsan
  • Publication number: 20170192878
    Abstract: A Remote Test Separation (RTS) system comprising an original software product instrumented for testing and a shared memory accessible to the original software product, the shared memory including a plurality of coverage counters. The RTS system further comprising an agent, capable of accessing the shared memory, the agent to read the plurality of coverage counters, the agent to read the plurality of coverage counters at an end of a test, and write coverage data to another memory. The RTS system runs a plurality of tests without interruption, and generates coverage data associated with a plurality of sequential tests and records the associations between lines of code and an associated test.
    Type: Application
    Filed: December 23, 2016
    Publication date: July 6, 2017
    Inventors: Jonathan Clark, Darren Kennedy, Sylvain François, Marc Rambert, Scott McPeak, Marat Boshernitsan
  • Patent number: 8843289
    Abstract: At least a method is provided learning a characteristic filling volume of a hydraulic clutch. The method includes, but is not limited to applying a pressure pulse to the hydraulic clutch when the clutch is in a disengaged state and determining an inflection event at an input or at an output of a torque path in which the hydraulic clutch is situated. A characteristic filling volume of the hydraulic clutch is derived from the determined inflection event. Furthermore, a method is provided for learning a characteristic return spring pressure of the hydraulic clutch, for engaging the hydraulic clutch and corresponding devices for carrying out these methods.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: September 23, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Morgan Postic, Marc Rambert, Eric Dalais, Emmanuel Hoff, Nathaniel Wilke
  • Publication number: 20120067690
    Abstract: At least a method is provided learning a characteristic filling volume of a hydraulic clutch. The method includes, but is not limited to applying a pressure pulse to the hydraulic clutch when the clutch is in a disengaged state and determining an inflection event at an input or at an output of a torque path in which the hydraulic clutch is situated. A characteristic filling volume of the hydraulic clutch is derived from the determined inflection event. Furthermore, a method is provided for learning a characteristic return spring pressure of the hydraulic clutch, for engaging the hydraulic clutch and corresponding devices for carrying out these methods.
    Type: Application
    Filed: July 7, 2011
    Publication date: March 22, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Morgan POSTIC, Marc RAMBERT, Eric DALAIS, Emmanuel HOFF, Nathaniel WILKE
  • Patent number: 7752021
    Abstract: A method of controlling hydraulic pressure to a torque converter is provided. The method includes: determining a slip error from a target slip value and a measured slip; integrating said slip error; determining a state space feedback control matrix for said measured slip; determining a state space feedback control matrix for said integrated slip error; and controlling pressure based on said state space feedback control matrix for said measured slip and said state space feedback control matrix for said integrated slip error.
    Type: Grant
    Filed: September 1, 2006
    Date of Patent: July 6, 2010
    Inventors: Vincent Holtz, Maxence De Dreuille, Marc Rambert
  • Publication number: 20080126043
    Abstract: A method of controlling hydraulic pressure to a torque converter is provided. The method includes: determining a slip error from a target slip value and a measured slip; integrating said slip error; determining a state space feedback control matrix for said measured slip; determining a state space feedback control matrix for said integrated slip error; and controlling pressure based on said state space feedback control matrix for said measured slip and said state space feedback control matrix for said integrated slip error.
    Type: Application
    Filed: September 1, 2006
    Publication date: May 29, 2008
    Inventors: Vincent Holtz, Maxence De Dreuille, Marc Rambert