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. 15, 2006
Filed:
Apr. 09, 2005
Daniel E. Boewe, Columbus, IN (US);
Danny R. Baker, Columbus, IN (US);
Philip M. Dimpelfeld, Columbus, IN (US);
David A. Vittorio, Columbus, IN (US);
Thomas A. Grana, Columbus, IN (US);
Daniel E. Boewe, Columbus, IN (US);
Danny R. Baker, Columbus, IN (US);
Philip M. Dimpelfeld, Columbus, IN (US);
David A. Vittorio, Columbus, IN (US);
Thomas A. Grana, Columbus, IN (US);
Cummins, Inc., Columbus, IN (US);
Abstract
A system for controlling turbocharger compressor surge includes a turbocharger compressor fluidly coupled to an engine intake manifold, an exhaust gas recirculation (EGR) valve disposed in-line with an EGR conduit fluidly coupled between the engine intake and exhaust manifolds, means for determining a mass flow parameter, a speed sensor producing a speed signal indicative of turbocharger speed, and a control computer configured to determine a mass flow rate surge value, corresponding to a fresh air mass flow rate above which turbocharger compressor surge is avoided, as a function of the speed signal, and to limit the EGR valve position and VGT position as a function of the mass flow parameter and the mass flow rate surge value to maintain exhaust gas flow through the EGR valve at a flow rate below which turbocharger compressor surge is avoided.