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:
Mar. 24, 2015
Filed:
Dec. 08, 2010
Stephan Bolz, Pfatter, DE;
Sven Eisen, Bad Abbach, DE;
Martin Götzenberger, Ingolstadt, DE;
Achim Reuther, Donaustauf, DE;
Harald Schmauβ, Donaustauf, DE;
Stephan Bolz, Pfatter, DE;
Sven Eisen, Bad Abbach, DE;
Martin Götzenberger, Ingolstadt, DE;
Achim Reuther, Donaustauf, DE;
Harald Schmauβ, Donaustauf, DE;
Continental Automotive GmbH, Hannover, DE;
Abstract
A method is provided for operating an ignition device for an internal combustion engine, which ignition device includes an ignition coil configured as a transformer, a spark plug connected to the secondary winding of the ignition coil, an actuable switching element connected in series to the primary winding of the ignition coil, and a control unit connected to the control input of the switching element, wherein the control unit provides an adjustable supply voltage for the ignition coil and an actuating signal for the switching element as a function of the currents through the primary and the secondary windings of the ignition coil and the voltage between the connecting point of the primary winding of the ignition coil to the switching element and the negative terminal of the supply voltage, as a result of which firstly operation of the spark plug by way of alternating current is possible and secondly regulation of said current is possible, which leads to more reliable ignition with a lower wear of the spark plugs.