| 摘要 |
An ignition device comprising a blow-out determination unit that determines that a blow-out has occurred, if a secondary current has dropped below a prescribed threshold (Ia) during a determination period, said determination period being a prescribed time (ΔT) from the start of spark discharge by a main ignition circuit. If a determination is made that a blow-out has occurred during main ignition (during full-transistor ignition), the ignition device controls so as to perform continuous spark discharge after main ignition in the next cycle. The secondary current command value (I2a) at this time is set as a current value having a prescribed current value (α) added to the prescribed threshold (Ia) used for the blow-out determination. As a result, escalation to a misfire can be reliably prevented because blow-out can be reliably prevented in the next cycle. |
