Patent ID: 7404396

Claim:
A multiple discharge ignition control apparatus for internal combustion engines having an ignition coil with a primary coil and a secondary coil connected to a spark plug, the multiple discharge ignition control apparatus comprising: an energy storage coil; first switch means connected in series with the energy storage coil; second switch means being connected in series with the energy storage coil and the primary coil; the first switch means and the second switch means being alternately turned on and off to repeatedly charge and discharge the energy storage coil thereby to generate a secondary current in the secondary coil both in a forward direction and in a reverse direction by the charging and discharging to carry out multiple discharge in the spark plug; current detection means for detecting the secondary current; and control means for switching the first switch means and the second switch means between ON and OFF each time the secondary current reaches a predetermined discharge holding current value in the multiple discharge.