Ignition apparatus for internal combustion engine
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United States of America Patent
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Sep 5, 2023
Grant Date -
Oct 21, 2021
app pub date -
Apr 15, 2021
filing date -
Apr 16, 2020
priority date (Note) -
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Abstract
In an ignition apparatus, a deterioration determination circuit performs a deterioration determination task of (i) monitoring an absolute increase in a temperature parameter during a predetermined deterioration detection period that has been started since an energization command signal being inputted to a control circuit, and (ii) performing a comparison between the absolute increase in the temperature parameter and a predetermined deterioration detection threshold to thereby determine whether a level of deterioration of a switching circuit is within an acceptable level.
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