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:
May. 18, 2004
Filed:
Nov. 15, 2001
Allan J. Kotwicki, Williamsburg, MI (US);
Steven Joseph Szwabowski, Northville, MI (US);
Woong-chul Yang, Ann Arbor, MI (US);
Yin Chen, Dearborn, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A system ( ) and method for determining the charged air mass in a cylinder ( ) of an internal combustion engine ( ) are provided. The system ( ) includes an electronic control unit (ECU) ( ) configured to determine a temperature of the combination of charged air and recirculated exhaust gas inducted into the cylinder ( ). The ECU ( ) is further configured to determine a total mass flow rate of the combination of inducted air and recirculated exhaust gas based on a pressure in an intake manifold ( ) of the engine ( ) and the previously determined temperature. Finally, the ECU ( ) is configured to determine the mass of charged air in the cylinder ( ) from the total mass flow rate.