Control apparatus of internal combustion engine
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United States of America Patent
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Aug 22, 2017
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app pub date -
Oct 30, 2012
filing date -
Oct 30, 2012
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Abstract
An internal combustion engine includes an intake variable lift amount mechanism that changes a maximum lift amount and valve-open period of an intake valve, and an exhaust variable lift amount mechanism that changes a maximum lift amount and valve-open period of an exhaust valve. A control unit executes a process to increase the valve-open period of the intake valve and reduce the valve-open period of the exhaust valve, when idling with a temperature of the internal combustion engine that is equal to or higher than a reference value.
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