Verfahren zum Betreiben einer Zündvorrichtung für eine Verbrennungskraftmaschine und Zündvorrichtung für eine Verbrennungskraftmaschine zur Durchführung des Verfahrens

摘要

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.