| 摘要 |
The ignition device for the internal combustion engine includes: an ignition plug including a first electrode and a second electrode opposed to each other via a predetermined gap, for generating in the predetermined gap a spark discharge for igniting a combustible mixture in a combustion chamber of the internal combustion engine; an ignition coil including a primary coil and a secondary coil, for generating a high voltage in the secondary coil by supplying or stopping a primary current flowing through the primary coil, and then applying the generated high voltage to the first electrode; and a control unit for driving the ignition coil for a plurality of times within a single ignition process, and changing a primary voltage for driving the ignition coil within the single ignition process.
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