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:
Oct. 06, 2009
Filed:
Feb. 06, 2007
Lynn A. Totten, Haslett, MI (US);
Michael Wayne Leiferman, Brighton, MI (US);
Paul R. Hozak, Sterling Heights, MI (US);
Jeffrey A. Sell, West Bloomfield, MI (US);
Lynn A. Totten, Haslett, MI (US);
Michael Wayne Leiferman, Brighton, MI (US);
Paul R. Hozak, Sterling Heights, MI (US);
Jeffrey A. Sell, West Bloomfield, MI (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
A humidity based control system for an internal combustion engine includes a calculation module and a calibration module. The calculation module determines a humidity of air used in a combustion process of the internal combustion engine. The control module selectively controls spark timing and exhaust dilution in the internal combustion engine based on the humidity.