Patents by Inventor Mathieu Mefflet

Mathieu Mefflet 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 for detecting the failure of a charge air cooler
    Patent number: 9632008
    Abstract: A method for detecting a failure of a charge air cooler placed in an air supply circuit of an engine, the circuit including an air filter and a compressor. The method is performed continuously and repeatedly. The method includes: determining temperature Tair of the air between the filter and the compressor, the temperature of the air Tapc between the compressor and the cooler, and the temperature of the air Tsras between the cooler and the engine; calculating the Tapc-Tsras/Tapc-Tair ratio, which is a parameter indicative of effectiveness of the cooler; comparing the parameter against a predetermined threshold effectiveness value; and making a diagnosis as to whether the cooler is operating correctly or incorrectly, on the basis of the comparison.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: April 25, 2017
    Assignee: RENAULT s.a.s.
    Inventors: Ludovic Martin, Clement Petit, Iwona Jedruch, Mathieu Mefflet
  • METHOD FOR DETECTING THE FAILURE OF A CHARGE AIR COOLER
    Publication number: 20140081597
    Abstract: A method for detecting a failure of a charge air cooler placed in an air supply circuit of an engine, the circuit including an air filter and a compressor. The method is performed continuously and repeatedly. The method includes: determining temperature Tair of the air between the filter and the compressor, the temperature of the air Tapc between the compressor and the cooler, and the temperature of the air Tsras between the cooler and the engine; calculating the Tapc-Tsras/Tapc-Tair ratio, which is a parameter indicative of effectiveness of the cooler; comparing the parameter against a predetermined threshold effectiveness value; and making a diagnosis as to whether the cooler is operating correctly or incorrectly, on the basis of the comparison.
    Type: Application
    Filed: March 16, 2012
    Publication date: March 20, 2014
    Applicant: RENAULT s.a.s.
    Inventors: Ludovic Martin, Clement Petit, Iwona Jedruch, Mathieu Mefflet