Invention Grant
- Patent Title: Control device for internal combustion engine
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Application No.: US15313739Application Date: 2015-05-22
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Publication No.: US10012165B2Publication Date: 2018-07-03
- Inventor: Norifumi Takada , Yasuyuki Takama , Yuji Miyoshi
- Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Applicant Address: JP Toyota-shi, Aichi-ken
- Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee Address: JP Toyota-shi, Aichi-ken
- Agency: Sughrue Mion, PLLC
- Priority: JP2014-108424 20140526
- International Application: PCT/IB2015/000893 WO 20150522
- International Announcement: WO2015/181623 WO 20151203
- Main IPC: F01N3/00
- IPC: F01N3/00 ; F02D41/14 ; F01N3/20 ; F01N3/08 ; F01N11/00 ; F01N3/10 ; F02D41/30

Abstract:
A control device for an internal combustion engine is provided. The control device includes an electronic control unit. The electronic control unit is configured to set a target air-fuel ratio to a rich air-fuel ratio from a time at which fuel cut control for terminating fuel supply to a combustion chamber during operation of the internal combustion engine is terminated to a time at which an output air-fuel ratio of a downstream-side air-fuel ratio sensor becomes a rich determination air-fuel ratio or lower, temporarily set the target air-fuel ratio to the rich air-fuel ratio after the output air-fuel ratio of the downstream-side air-fuel ratio sensor becomes the rich determination air-fuel ratio or lower, and thereafter set the target air-fuel ratio to a lean air-fuel ratio.
Public/Granted literature
- US20170101953A1 CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE Public/Granted day:2017-04-13
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