Patent ID: 9441604
Filing Date: 2016-09-13
CPC Classification: F02D,F02P,H01T

Claim Text:
1. An ignition system for an internal combustion engine, comprising: an igniter comprising a support body fabricated from an electrically insulating material, the support body supporting at least two first electrodes and a second electrode one relative to another, the igniter further comprising a metal casing disposed outwardly of and at least partially surrounding the support body, the metal casing connected to ground and for supporting the igniter such that a spark forming end of the igniter is positioned within a combustion zone, the at least two first electrodes being electrically isolated one from the other and from the second electrode, and the at least two first electrodes and the second electrode being electrically isolated from the metal casing; a coil assembly having at least one primary winding and at least two secondary windings, each secondary winding having a terminal for providing a first voltage to one of the at least two first electrodes; a driver module for energizing the coil assembly; and a cable comprising at least two first wires, each one of the at least two first wires connecting one of the at least two first electrodes to the terminal of a respective one of the at least two secondary windings, and the cable further comprising a second wire connecting the second electrode to the driver module, wherein the driver module comprises a feedback circuit for receiving a feedback signal from the second electrode via the second wire and for providing a control signal based on the feedback signal, and wherein the first electrodes receive a first voltage that is higher than ground and the second electrode receives a second voltage that is lower than the first voltage.