Double strike ignition control

摘要

The method, for generating sequential first and second arcs across spaced electrodes of a spark plug in an engine cylinder for igniting an air/fuel mixture in the engine cylinder, involves charging an electrical storage element. A control signal is issued to an ignition control switch to drive the switch to a predetermined state. The charged electrical storage element is discharged through a primary ignition coil of a transformer when the ignition control switch is driven to the predetermined state. The discharge through the primary ignition coil induces a secondary signal through a secondary ignition coil of the transformer. The secondary signal is transferred to the spark plug for generating the first arc across the electrodes of the spark plug. The discharge is interrupted, following a predetermined delay period, to generate a flyback signal through the primary ignition coil of the transformer. The flyback signal induces a secondary flyback signal in the secondary coil of the transformer. The secondary flyback signal is transferred to the spark plug for generating the second arc across the electrodes of the spark plug.