Invention Grant
- Patent Title: Control apparatus for internal combustion engine
- Patent Title (中): 内燃机控制装置
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Application No.: US13812054Application Date: 2010-10-27
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Publication No.: US08972156B2Publication Date: 2015-03-03
- Inventor: Takashi Nishikiori , Norihisa Nakagawa
- Applicant: Takashi Nishikiori , Norihisa Nakagawa
- Applicant Address: JP Toyota
- Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee Address: JP Toyota
- Agency: Oliff PLC
- International Application: PCT/JP2010/069103 WO 20101027
- International Announcement: WO2012/056535 WO 20120503
- Main IPC: F02D41/00
- IPC: F02D41/00 ; F02D13/08 ; F02D41/04 ; F02N19/00 ; F02D41/12 ; F02D13/02 ; F01L1/34 ; B60K6/24

Abstract:
An engine includes an intake variable valve mechanism and an exhaust variable valve mechanism. An ECU causes all intake valves in all cylinders to stop in a closed state by means of intake variable valve mechanism when performing a fuel-cut operation, including when the engine is stopped. The ECU causes at least one exhaust valve in all cylinders to stop in an open state by means of exhaust variable valve mechanism. When executing a fuel-cut operation, needless compression can be avoided by stopping the exhaust valves in an open state, while protecting a catalyst from deterioration caused by contact with intake air by stopping the intake valves in a closed state. The amount of oil consumption of the engine, and electric power consumption, vibrations and a tendency for spontaneous ignition to occur at cranking time can be improved.
Public/Granted literature
- US20130255606A1 CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE Public/Granted day:2013-10-03
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