Invention Grant
- Patent Title: Control apparatus for internal combustion engine including variable valve operating apparatus
- Patent Title (中): 包括可变气门操作装置的内燃机控制装置
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Application No.: US13501107Application Date: 2009-12-16
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Publication No.: US08738272B2Publication Date: 2014-05-27
- Inventor: Shuichi Ezaki
- Applicant: Shuichi Ezaki
- Applicant Address: JP Toyota-shi
- Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee Address: JP Toyota-shi
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- International Application: PCT/JP2009/070997 WO 20091216
- International Announcement: WO2011/074090 WO 20110623
- Main IPC: F02D21/08
- IPC: F02D21/08

Abstract:
Provided is a control apparatus for an internal combustion engine that can suppress deterioration of a catalyst that is ascribable to a control delay of a variable valve operating apparatus when transitioning to a valve stopped state accompanying a fuel-cut operation, or when transitioning from the valve stopped state to a combustion limit operating state. An intake variable valve operating apparatus capable of changing the operating state of an intake valve to a valve stopped state by continuously changing a lift amount and working angle of the intake valve is included. When the temperature of a catalyst is equal to or greater than a predetermined temperature, fuel injection is executed to supply fuel into an exhaust passage during a period in which the operating state of the intake valve transitions to the valve stopped state, during a period in which a fuel-cut operation is executed in the valve stopped state, or during a period in which the operating state of the intake valve transitions from the valve stopped state to a return limit operating state.
Public/Granted literature
- US20120245828A1 CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE INCLUDING VARIABLE VALVE OPERATING APPARATUS Public/Granted day:2012-09-27
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