The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 18, 2015
Filed:
Oct. 04, 2012
Ifp Energies Nouvelles, Rueil-Malmaison Cedex, FR;
Delphine Bresch-Pietri, Vincennes, FR;
Thomas LeRoy, Saint Germain en Laye, FR;
Jonathan Chauvin, Paris, FR;
IFP ENERGIES nouvelles, Rueil-Malmaison Cedex, FR;
Abstract
The invention relates to a method of controlling a combustion engine () comprising at least one cylinder () and a manifold () and an exhaust gas recirculation (EGR) circuit including an EGR valve. The EGR valve () is controlled by carrying out the following stages: a) measuring a pressure difference ΔP in a portion of the exhaust gas recirculation circuit including the EGR valve; b) selecting a burnt gas fraction set point BGRin the intake manifold (); c) calculating an opening set point for the EGR valve () from a pressure drop relation applied in a portion of the exhaust gas recirculation circuit including the EGR valve, depending on difference ΔP at the EGR valve and on the burnt gas fraction set point BGRin the intake manifold; and d) controlling the EGR valve () as a function of the opening set point of EGR valve ().