公开(公告)号：US20210293216A1

公开(公告)日：2021-09-23

申请号：US17265202

申请日：2019-07-30

Applicant: ELDOR CORPORATION S.P.A.

Inventor： Eugenio CARUGATI ,  Stefano SILVA ,  Marco ALBI ,  Pasquale FORTE ,  Pierluigi POZZI

IPC: F02P17/12 ,  F02P3/05

Abstract: A method of detecting the breakdown voltage between the electrodes of a spark plug connected to an ignition coil for a cylinder ignition system, in an internal combustion engine, comprises a detection of an opening of the switch (105) on the primary winding (102) and a detection of a voltage on that primary winding (102), with the generation of a first signal (V1) representative of the voltage trend following the opening of the switch (105).
The first signal (V1) is then integrated and, following an identification of a breakdown at the ends of the spark plug (106), a breakdown voltage value is determined as a function of the value of the integrated signal at the time of the breakdown.