Ignition control system
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United States of America Patent
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May 17, 2022
Grant Date -
Nov 21, 2019
app pub date -
Aug 5, 2019
filing date -
Feb 6, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
An ignition control system performs discharge generation control, in which a discharge spark is generated, once or a plurality of times during a single combustion cycle. The ignition control system successively calculates an approximate energy density based on a secondary current and a discharge path length. During a predetermined period after blocking of a primary current is performed during a single combustion cycle, the ignition control system calculates an integrated value by integrating the discharge path length at this time, based on the approximate energy density being greater than a predetermined value. The ignition control system performs the discharge generation control again based on the calculated integrated value being less than a first threshold.
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