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. 03, 2005
Filed:
Aug. 25, 2003
Applicant:
Raymond O. Butler, Jr., Anderson, IN (US);
Inventor:
Raymond O. Butler, Jr., Anderson, IN (US);
Assignee:
Delphi Technologies, Inc., Troy, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02P003/04 ;
U.S. Cl.
CPC ...
Abstract
A plurality of ignition coils having a combustion detection capability, such as an ion sense capability or cylinder pressure detection capability, are connected to a common communication line. The combustion signals for the plurality of ignition coils is multiplexed on the common communication line. The combustion signal for each ignition coil/cylinder is applied to the common line combined with a respective sync signal such as a current flag signal or a respective electronic spark timing (EST) signal. The sync signals allow each ignition coil to determine when it can transmit its combustion signal.