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:
Dec. 15, 2009
Filed:
Jul. 27, 2007
Wenbo Wang, Novi, MI (US);
John F. Van Gilder, Webberville, MI (US);
Jill a Slimmer-velez, Brighton, MI (US);
Kurt D. MC Lain, Clarkston, MI (US);
Michael A. Kropinski, Troy, MI (US);
Wenbo Wang, Novi, MI (US);
John F. Van Gilder, Webberville, MI (US);
Jill A Slimmer-Velez, Brighton, MI (US);
Kurt D. Mc Lain, Clarkston, MI (US);
Michael A. Kropinski, Troy, MI (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
A method of determining a barometric pressure of atmosphere, in which an internal combustion engine of a vehicle is located includes monitoring operating parameters of the internal combustion engine and the vehicle, determining a healthy status of an air filter of the internal combustion engine, and calculating the barometric pressure based on the operating parameters and the healthy status of the air filter.