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:
Jan. 04, 2011
Filed:
Nov. 30, 2007
Applicant:
Martin Müller, Ann Arbor, MI (US);
Inventor:
Martin Müller, Ann Arbor, MI (US);
Assignee:
Delphi Technologies, Inc., Troy, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 41/26 (2006.01); F02D 41/38 (2006.01);
U.S. Cl.
CPC ...
Abstract
A system and method for controlling an engine involves providing a model for volumetric efficiency. The model recognizes that volumetric efficiency (VE) has stronger dependency on intake pressure than on exhaust pressure. The model allows tuning of the relative importance of intake pressure to exhaust pressure, specifically, by reducing the relative importance of the exhaust pressure to intake pressure in the composite volumetric efficiency load variable. The model provides for a calculation where the exhaust pressure term of the engine pressure ratio is de-rated through the use of an exponent less than one.