Patents by Inventor Julien ARDEOIS

Julien ARDEOIS 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 of modelling AFR to compensate for WRAF sensor
    Patent number: 10774768
    Abstract: A method of providing a model which provides air/fuel ratio at a point of an air/fuel sensor located in an exhaust system of an engine includes a) providing a first model which provides a first air/fuel ratio which is outlet from an exhaust manifold of the engine; b) measuring or estimating volumetric flow through the exhaust; c) applying a transfer function to the first air/fuel ratio to provide a model of the air/fuel ratio at the sensor. The transfer function includes a first order filter and is dependent on the volumetric flow. The transfer function has a time constant equivalent to a filter coefficient which is 1/time constant which is determined based on the flow rate.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: September 15, 2020
    Assignee: DELPHI AUTOMOTIVE SYSTEMS LUXEMBOURG SA
    Inventors: Damien Didiot, Julien Ardeois
  • METHOD OF MODELLING AFR TO COMPENSATE FOR WRAF SENSOR
    Publication number: 20190203655
    Abstract: A method of providing a model which provides air/fuel ratio at a point of an air/fuel sensor located in an exhaust system of an engine includes a) providing a first model which provides a first air/fuel ratio which is outlet from an exhaust manifold of the engine; b) measuring or estimating volumetric flow through the exhaust; c) applying a transfer function to the first air/fuel ratio to provide a model of the air/fuel ratio at the sensor. The transfer function includes a first order filter and is dependent on the volumetric flow. The transfer function has a time constant equivalent to a filter coefficient which is 1/time constant which is determined based on the flow rate.
    Type: Application
    Filed: May 23, 2017
    Publication date: July 4, 2019
    Inventors: Damien DIDIOT, Julien ARDEOIS