Controller for internal combustion engine and method for controlling internal combustion engine
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United States of America Patent
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Apr 23, 2019
Grant Date -
Jan 4, 2018
app pub date -
May 30, 2017
filing date -
Jun 29, 2016
priority date (Note) -
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Abstract
A controller for an internal combustion engine is configured to control the fuel injection valve so that the fuel injection valve selectively performs partial lift injection, which does not open a valve member at a fully open position, and full lift injection, which opens the valve member at the fully open position. The internal combustion engine includes the fuel injection valve and a fuel supply system. The controller includes an energizing time setting unit, a fuel pressure calculation unit, and a smoothening process unit. The energizing time setting unit is configured to set an energizing time for the full lift injection based on graded fuel pressure calculated by the smoothening process unit and set an energizing time for the partial lift injection based on fuel pressure calculated by the fuel pressure calculation unit.
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