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:
Jul. 24, 2012
Filed:
May. 19, 2009
Yue-yun Wang, Troy, MI (US);
Ibrahim Haskara, Macomb, MI (US);
Chol-bum M. Kweon, Rochester, MI (US);
Frederic Anton Matekunas, Troy, MI (US);
Paul Anthony Battiston, Clinton Township, MI (US);
Yue-Yun Wang, Troy, MI (US);
Ibrahim Haskara, Macomb, MI (US);
Chol-Bum M. Kweon, Rochester, MI (US);
Frederic Anton Matekunas, Troy, MI (US);
Paul Anthony Battiston, Clinton Township, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
Systems and methods useful for detecting a combustion fault in a combustion engine include determining cylinder power density values for cylinders present on the engine during its operation and determining cylinder imbalance parameters for the cylinders, based on the cylinder power density values. The cylinder imbalance parameters are compared with a provided diagnostic threshold value.