Invention Grant
- Patent Title: Fuel injection control apparatus and fuel injection control method for internal combustion engine
- Patent Title (中): 用于内燃机的燃料喷射控制装置和燃料喷射控制方法
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Application No.: US12530966Application Date: 2008-07-18
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Publication No.: US08131449B2Publication Date: 2012-03-06
- Inventor: Takashi Koyama , Hisashi Ohki , Kiyoshi Fujiwara , Tomohiro Kaneko , Takahumi Yamada
- Applicant: Takashi Koyama , Hisashi Ohki , Kiyoshi Fujiwara , Tomohiro Kaneko , Takahumi Yamada
- Applicant Address: JP Aichi-Ken
- Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee Address: JP Aichi-Ken
- Agency: Sughrue Mion, PLLC
- Priority: JP2007-188654 20070719
- International Application: PCT/IB2008/001885 WO 20080718
- International Announcement: WO2009/010866 WO 20090122
- Main IPC: F02D41/02
- IPC: F02D41/02 ; G06F19/00 ; F02M51/00

Abstract:
A fuel injection valve coupled to a common rail is provided. When fuel injection is carried out, the fuel pressure in the fuel injection valve pulsates. An interval between a pilot injection and a main injection is set so that the main injection is carried out at a zero gradient timing as a timing when the gradient of the fuel pressure in the fuel injection valve after the pilot injection is approximately equal to zero. Owing to a fuel injection control apparatus and a fuel injection control method for an internal combustion engine that perform the above-mentioned control, the fuel injection amount for the subsequent fuel injection following the preceding fuel injection can be reliably held equal to a normal amount.
Public/Granted literature
- US20100116243A1 FUEL INJECTION CONTROL APPARATUS AND FUEL INJECTION CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE Public/Granted day:2010-05-13
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