Apparatus to control internal combustion engine, method for controlling internal combustion engine and non-transitory computer-readable recording medium
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United States of America Patent
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Jan 13, 2015
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N/A
app pub date -
May 9, 2011
filing date -
Jun 9, 2010
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Abstract
An apparatus to control an internal combustion engine includes a cylinder operation controller configured to switch a cylinder operation between an all-cylinder operation and a cylinder deactivation operation. A deactivation time parameter integrating device is configured to integrate a deactivation time parameter indicating a deactivation time of the part of the plurality of cylinders to calculate an integrated deactivation time parameter. An inhibiting device is configured to inhibit the cylinder deactivation operation if the integrated deactivation time parameter calculated by the deactivation time parameter integrating device is larger than or equal to a reference value. The deactivation time parameter integrating device holds the integrated deactivation time parameter as an initial value after an operation of the internal combustion engine is stopped. The deactivation time parameter integrating device resumes integrating the deactivation time parameter using the initial value when the internal combustion engine restarts.
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