METHOD FOR MEASURING AN IONIZATION CURRENT OF A SPARK PLUG OF THE TYPE WITH RESONANT STRUCTURE, AND CORRESPONDING DEVICE

摘要

The method involves charging a resonant structure spark plug (BR) by a voltage generated with respect to a charged ballast capacitor (Cb) during ignition phase. Ionization current (Ii) of the spark plug is periodically measured between two ignition phases by a measurement unit (MMES), where the ionization current is measured between the ballast capacitor and a weight after polarizing the spark plug. An independent claim is also included for a device for measuring ionization current of a resonant structure type spark plug.