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. 18, 2014
Filed:
Jul. 05, 2012
Torsten Schremmer, Ludwigsburg, DE;
Torsten Schremmer, Ludwigsburg, DE;
BorgWarner BERU Systems, GmbH, Ludwigsburg, DE;
Abstract
The invention relates to a method for controlling a corona ignition device which, in a cyclically operating combustion engine, ignites a fuel-air mixture by means of a corona discharge originating from an ignition electrode in that by means of a primary voltage applied to a primary side of a DC/AC converter, an electrical oscillator circuit is excited, which oscillator circuit is connected to the ignition electrode, wherein the impedance on the primary side of the DC/AC converter is successively measured. According to the invention it is provided that by evaluating the impedance measurements, a time of the start of a corona discharge is determined, this time is compared with a target value, and the activation of the primary side of the DC/Ac converter is changed depending on a result of this comparison.