Patents by Inventor Jean-Jacques Kerjean

Jean-Jacques Kerjean 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 an internal combustion engine equipped with a device for recycling exhaust gases
    Patent number: 6250291
    Abstract: Process for controlling an internal combustion engine equipped with an exhaust gas recirculation device (5) comprising a recirculation valve (51) and a device for regulating an air/fuel mixture injected into an inlet circuit as a function of the signal (LAM_AV) of an oxygen probe (41) placed in the exhaust circuit (4), characterized in that the controls of the valve (EGR_CTRL) are synchronized with at least one transition of a correction (LAM_COR) of the richness of the mixture in order to reduce the transient pollution peaks generated by the operating of the exhaust gas recirculation valve (51).
    Type: Grant
    Filed: August 10, 1999
    Date of Patent: June 26, 2001
    Assignee: Siemens Automotive S.A.
    Inventors: Jean-Jacques Kerjean, Françoise Rembaud, Dominique Salafia