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CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE, HYBRID VEHICLE INCLUDING THE SAME, AND METHOD FOR CONTROLLING INTERNAL COMBUSTION ENGINE

  • US 20130103243A1
  • Filed: 06/24/2010
  • Published: 04/25/2013
  • Est. Priority Date: 06/24/2010
  • Status: Active Grant
First Claim
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1. A control device for an internal combustion engine, said internal combustion engine including a purge mechanism for implementing purge control which causes evaporated fuel generated within a fuel tank to flow into an intake pipe, utilizing a negative pressure within said intake pipe which varies in accordance with an opening degree of a throttle provided in said intake pipe, said control device for the internal combustion engine comprising:

  • a determination unit determining whether or not to implement said purge control in accordance with predetermined implementation conditionsa switching unit switching an upper limit value of the opening degree of said throttle based on a determination result of said determination unit, wherein,when it is determined by said determination unit to implement said purge control, said switching unit sets said upper limit value to a first value, and when it is determined by said determination unit not to implement said purge control, said switching unit sets said upper limit value to a second value larger than the first value; and

    a throttle opening degree control unit controlling the opening degree of said throttle to a fuel efficiency-optimizing opening degree for optimizing fuel efficiency of said internal combustion engine, when it is determined by said determination unit not to implement said purge control.

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