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:
Nov. 07, 2006
Filed:
Apr. 11, 2005
Vijay Ramappan, Pittsford, NY (US);
Brian R. Lovegrove, Kokomo, IN (US);
Philip Allen Karau, Grand Blanc, MI (US);
Sergio Eduardo Garcia, Webster, NY (US);
Vijay Ramappan, Pittsford, NY (US);
Brian R. Lovegrove, Kokomo, IN (US);
Philip Allen Karau, Grand Blanc, MI (US);
Sergio Eduardo Garcia, Webster, NY (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
A method and control system to accomplish knock control on a multi-cylinder spark-ignition internal combustion engine equipped variable cam phasing system, comprising monitoring cam position, crankshaft position, and, engine knock signal, determining cam position relative to crankshaft position, and implementing either a global cylinder knock control strategy or an individual cylinder knock control strategy, based upon whether the determined cam position relative to crankshaft position is near a default position, the determined cam position indicates the variable cam phasing system is operating in a transient mode, or, the determined cam position relative to crankshaft position is substantially different from the default position.