High-pressure fuel pump control device for internal combustion

Details High-pressure fuel pump control device for internal combustion High-pressure fuel pump control device for internal combustion

2007-02-06

2007-02-06

Miller, Carl S. (Department: 3747)

Internal-combustion engines

Engine speed regulator

Having condition responsive means with engine being part of...

C123S447000

Reexamination Certificate

active

11455154

ABSTRACT:
A high-pressure fuel pump control device for an internal combustion engine includes a feedback quantity calculating unit (602) for calculating a fuel discharge feedback quantity (QFB) of a high-pressure pump according to a proportional integral operation based on a pressure deviation (ΔPF) between a target pressure (PO) and a fuel pressure (PF), a flow control valve controlling unit (603) for setting drive timing (TD) of a flow control valve (10) on the basis of a target fuel discharge quantity (QO), and an integral operation update prohibiting unit for prohibiting, when the number of times of calculation of the fuel discharge feedback quantity (QFB) reaches a first predetermined number of times while a sign of the pressure deviation (ΔPF) does not invert, update of an integral operand (QFBI), and for resuming, when the sign of the pressure deviation (ΔPF) inverts thereafter, the update of the integral operand (QFBI).

REFERENCES:
patent: 4933863 (1990-06-01), Okano et al.
patent: 5694902 (1997-12-01), Miwa et al.
patent: 5706654 (1998-01-01), Nagai
patent: 5785033 (1998-07-01), Kawamoto et al.
patent: 6155232 (2000-12-01), Shibagaki
patent: 6283106 (2001-09-01), Kadowaki et al.
patent: 6338336 (2002-01-01), Iida
patent: 6450147 (2002-09-01), Demura et al.
patent: 6672284 (2004-01-01), Majima
patent: 6971368 (2005-12-01), Uchiyama
patent: 2003/0070653 (2003-04-01), Ogawa et al.
patent: 2006/0081219 (2006-04-01), Nomura et al.
patent: 06-137199 (1994-05-01), None
patent: 2001-263144 (2001-09-01), None

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