Invention Grant
- Patent Title: Control device for internal combustion engine
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Application No.: US14113300Application Date: 2011-06-20
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Publication No.: US09644572B2Publication Date: 2017-05-09
- Inventor: Hiroi Nagasawa
- Applicant: Hiroi Nagasawa
- 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
- International Application: PCT/JP2011/064073 WO 20110620
- International Announcement: WO2012/176271 WO 20121227
- Main IPC: F02M25/07
- IPC: F02M25/07 ; F02D41/24 ; F02D41/00 ; F02B3/06 ; F02B29/04 ; F02M26/23

Abstract:
This invention relates to a control device for internal combustion engine for performing an exhaust recirculation control for controlling an operation condition of an exhaust recirculation device (50,52) according to a target exhaust gas recirculation amount (TRegr) set such that a detected air-fuel ratio (AFd) corresponds to an estimated air-fuel ratio (AFe). When the sign of the ratio (Rtregr) of the change amount of the actual target exhaust gas recirculation amount relative to the change amount of the base exhaust gas recirculation amount setting parameter (Q) used for the setting of the base exhaust gas recirculation amount (Regrb) is different from that of the ratio of the change amount of the referential target exhaust gas recirculation amount relative to the change amount of the base exhaust gas recirculation amount setting parameter, the performance of the learning function to calculate the learned correction value (KGn) on the basis of the instant correction value (KT) for correcting the current target exhaust gas recirculation amount such that the air-fuel ratio deviation (Raf) becomes zero is forbidden.
Public/Granted literature
- US20140090627A1 CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE Public/Granted day:2014-04-03
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