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:
Apr. 03, 2012
Filed:
Jul. 22, 2008
Chol-bum M Kweon, Rochester, MI (US);
Frederic Anton Matekunas, Troy, MI (US);
Paul Anthony Battiston, Clinton Township, MI (US);
Donald Terry French, Warren, MI (US);
Ibrahim Haskara, MaComb, MI (US);
Yue-yun Wang, Troy, MI (US);
Chol-Bum M Kweon, Rochester, MI (US);
Frederic Anton Matekunas, Troy, MI (US);
Paul Anthony Battiston, Clinton Township, MI (US);
Donald Terry French, Warren, MI (US);
Ibrahim Haskara, MaComb, MI (US);
Yue-Yun Wang, Troy, MI (US);
Abstract
An engine control system comprises a fuel diagnostic module and a fuel control module. The fuel diagnostic module determines a pressure-ratio difference average (PRDA) based on a pressure in at least one cylinder and determines a cetane number (CN) of a fuel based on the PRDA. The fuel control module actuates fuel injectors based on the CN.