Internal combustion engine system
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United States of America Patent
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Nov 5, 2019
Grant Date -
Aug 16, 2018
app pub date -
Feb 5, 2018
filing date -
Feb 16, 2017
priority date (Note) -
In Force
status (Latency Note)
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Abstract
In a system that selects a large-cam as a driving cam at a time of a start of an engine, when an engine stop request is output, it is determined whether there is a small-cam cylinder for which a small-cam is selected as the driving cam. In a case where it is determined that there is a small-cam cylinder, a switching command for switching the driving cam from the small-cam to the large-cam is output. When an engine start request is output, the above determination is performed again. In a case where it is determined that there is a small-cam cylinder, the switching command is output to all solenoid actuators again. In addition, the drive of the fuel injector is suspended until the switching operation of the driving cam is completed for all cylinders.
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