Patents by Inventor Clement Grise

Clement Grise 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 controlling a system for the treatment of exhaust gases from an internal combustion engine
    Patent number: 9051865
    Abstract: The invention relates to a method for controlling a system for the treatment of exhaust gases in an exhaust line of an internal combustion engine. The method comprises estimating the molar ratio of nitrogen dioxide to nitrogen monoxide at the inlet of an NOx selective reduction catalyst based on cartography that is dependent on the residence time of the exhaust gases in an oxidation catalyst disposed upstream of the gas treatment means leading to a reduction of nitrogen oxides.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: June 9, 2015
    Assignee: Peugeot Citroen Automobilies SA.
    Inventors: Christophe Charial, Clement Grise
  • Method for controlling pollutant emissions from a combustion engine
    Patent number: 8869515
    Abstract: The invention relates to a method for controlling a system for treating NOx in an exhaust line of an internal combustion engine, said system comprising means for introducing a reducing agent into the exhaust line upstream of an NOx reduction catalyst. The invention is characterized in that it consists in estimating the efficiency of the treatment in relation to a maximum conversion potential obtained if the ratio between the quantity of injected reducer and the quantity of NOx in the gas complies with a given set value and if the mass of reducing agent stored in the catalyst complies with a given storage set value.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: October 28, 2014
    Assignee: Peugeot Citroen Automobiles SA
    Inventors: Christophe Charial, Clement Grise
  • METHOD FOR CONTROLLING A SYSTEM FOR THE TREATMENT OF EXHAUST GASES FROM AN INTERNAL COMBUSTION ENGINE
    Publication number: 20120227383
    Abstract: The invention relates to a method for controlling a system for the treatment of exhaust gases in an exhaust line of an internal combustion engine. The method comprises estimating the molar ratio of nitrogen dioxide to nitrogen monoxide at the inlet of an NOx selective reduction catalyst based on cartography that is dependent on the residence time of the exhaust gases in an oxidation catalyst disposed upstream of the gas treatment means leading to a reduction of nitrogen oxides.
    Type: Application
    Filed: October 18, 2010
    Publication date: September 13, 2012
    Applicant: PEUGEOT CITROEN AUTOMOBILES SA
    Inventors: Christope Charial, Clement Grise
  • METHOD FOR CONTROLLING POLLUTANT EMISSIONS FROM A COMBUSTION ENGINE
    Publication number: 20120222404
    Abstract: The invention relates to a method for controlling a system for treating NOx in an exhaust line of an internal combustion engine, said system comprising means for introducing a reducing agent into the exhaust line upstream of an NOx reduction catalyst. The invention is characterised in that it consists in estimating the efficiency of the treatment in relation to a maximum conversion potential obtained if the ratio between the quantity of injected reducer and the quantity of NOx in the gas complies with a given set value and if the mass of reducing agent stored in the catalyst complies with a given storage set value.
    Type: Application
    Filed: October 18, 2010
    Publication date: September 6, 2012
    Applicant: PEUGEOT CITROEN AUTOMOBILES SA
    Inventors: Christophe Charial, Clement Grise