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:
May. 05, 2009
Filed:
Sep. 11, 2007
Anthony E. Cubr, Fenton, MI (US);
Craig M. Sawdon, Williamston, MI (US);
Wajdi B. Hamama, Whitmore Lake, MI (US);
Karl T. Kiebel, Royal Oak, MI (US);
Robert J. Horner, Dexter, MI (US);
Marilyn L Kindermann, Milford, MI (US);
Jian Lin, Beverly Hills, MI (US);
Trenton W. Haines, Novi, MI (US);
Eric Ferch, Northville, MI (US);
Hamid M. Esfahan, Ann Arbor, MI (US);
James T. Kurnik, Linden, MI (US);
Weixin Yan, Novi, MI (US);
Anthony E. Cubr, Fenton, MI (US);
Craig M. Sawdon, Williamston, MI (US);
Wajdi B. Hamama, Whitmore Lake, MI (US);
Karl T. Kiebel, Royal Oak, MI (US);
Robert J. Horner, Dexter, MI (US);
Marilyn L Kindermann, Milford, MI (US);
Jian Lin, Beverly Hills, MI (US);
Trenton W. Haines, Novi, MI (US);
Eric Ferch, Northville, MI (US);
Hamid M. Esfahan, Ann Arbor, MI (US);
James T. Kurnik, Linden, MI (US);
Weixin Yan, Novi, MI (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
A knock detection module for an engine comprises a statistics storage module and a processing module. The statistics storage module stores M times N vibration profiles corresponding to M zones of operation of the engine and N cylinders of the engine, wherein M and N are integers greater than one. The processing module determines in which one of the M zones the engine is operating and determines whether knock has occurred for one of the N cylinders by comparing measured vibration data with a selected one of the vibration profiles corresponding to the one of the M zones and the one of the N cylinders.