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:
Jun. 05, 2012
Filed:
Mar. 27, 2009
Charles H. Folkerts, Troy, MI (US);
Jose C Zavala Jurado, Ann Arbor, MI (US);
Karl T. Kiebel, Royal Oak, MI (US);
Johnson Wu, Sterling Heights, MI (US);
Charles H. Folkerts, Troy, MI (US);
Jose C Zavala Jurado, Ann Arbor, MI (US);
Karl T. Kiebel, Royal Oak, MI (US);
Johnson Wu, Sterling Heights, MI (US);
Abstract
A method and a control module for performing the same include a filter module filtering in-cylinder pressure signals using a filter to form filtered in-cylinder pressure signals. The control module further includes a heat release rate determination module generating heat release rate signals based on the in-cylinder pressure signals and a maximum heat rate determination module determining a maximum heat release rate from the heat release rate signals. The system also includes a correction module correcting auto-ignition for the engine based on the maximum heat release rate.