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:
Feb. 14, 2006
Filed:
Jun. 11, 2003
Chao F. Daniels, Ypsilanti, MI (US);
Guoming G. Zhu, Novi, MI (US);
Bruce Wang, Troy, MI (US);
Kenneth L. Gould, Fayetteville, GA (US);
Chao F. Daniels, Ypsilanti, MI (US);
Guoming G. Zhu, Novi, MI (US);
Bruce Wang, Troy, MI (US);
Kenneth L. Gould, Fayetteville, GA (US);
Visteon Global Technologies, Inc., Van Buren Township, MI (US);
Abstract
The present feature of the invention is generally directed to a subsystem of an ignition diagnostics and feedback control system using ionization current feedback. It utilizes the ionization signal from an ionization detection circuit to monitor ignition parameters, such as primary charge timing, primary charge duration, ignition/spark timing, and ignition/spark duration for future 'smart' ignition system control. In addition, the ionization signal is also used to detect spark plug carbon fouling, as well as plug insulator overheating. These parameters can be monitored for every cylinder of the engine for each engine cycle.