Defective injection detection device and fuel injection...

Details Defective injection detection device and fuel injection... Defective injection detection device and fuel injection...

2011-04-26

2011-04-26

Kwon, John T (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C123S479000, C123S690000, C073S114450

Reexamination Certificate

active

07933712

ABSTRACT:
A pressure sensor is located in a fuel passage, which extends from a pressure-accumulation vessel to a nozzle hole of a fuel injection valve. The pressure sensor is located closer to a nozzle hole than the pressure-accumulation vessel for detecting pressure fluctuated by injection of fuel through the nozzle hole. An instruction signal output unit outputs an injection instruction signal so as to instruct an injection mode of fuel to the fuel injection valve. A defective injection determination unit determines whether a detected pressure of the fuel pressure sensor is fluctuated in a fluctuation mode in a range assumed from the injection instruction signal. The defective injection determination unit determines that a defective injection occurs when determining that the detected pressure is out of the fluctuation mode in the assumed range.

REFERENCES:
patent: 3919885 (1975-11-01), Kaireit
patent: 5848581 (1998-12-01), Hirose et al.
patent: 5896841 (1999-04-01), Nemoto et al.
patent: 6073608 (2000-06-01), Krieger et al.
patent: 6088647 (2000-07-01), Hemberger et al.
patent: 6138638 (2000-10-01), Morikawa
patent: 6209521 (2001-04-01), Rembold et al.
patent: 7137294 (2006-11-01), Eser et al.
patent: 2008/0228374 (2008-09-01), Ishizuka et al.
patent: 2009/0055084 (2009-02-01), Ishizuka et al.
patent: 2009/0056676 (2009-03-01), Nakata et al.
patent: 2009/0056677 (2009-03-01), Nakata et al.
patent: 2009/0056678 (2009-03-01), Nakata et al.
patent: 2009/0063010 (2009-03-01), Nakata et al.
patent: 2009/0063011 (2009-03-01), Nakata et al.
patent: 2009/0063012 (2009-03-01), Nakata et al.
patent: 2009/0063013 (2009-03-01), Nakata et al.
patent: 2009/0063016 (2009-03-01), Nakata et al.
patent: 2009/0082940 (2009-03-01), Ishizuka et al.
patent: 2009/0082941 (2009-03-01), Nakata et al.
patent: 2009/0084356 (2009-04-01), Nakata et al.
patent: 2009/0084357 (2009-04-01), Nakata et al.
patent: 2009/0107225 (2009-04-01), Ishizuka et al.
patent: 2009/0107227 (2009-04-01), Ishizuka et al.
patent: 2009/0112444 (2009-04-01), Ishizuka et al.
patent: 2009/0112447 (2009-04-01), Ishizuka et al.
patent: 6-272600 (1994-09-01), None
U.S. Appl. No. 11/930,668 of Ishizuka, filed Oct. 31, 2007.
U.S. Appl. No. 12/179,235 of Ishizuka, filed Jul. 24, 2008.
U.S. Appl. No. 12/186,038 of Nakata, filed Aug. 5, 2008.
U.S. Appl. No. 12/187,638 of Nakata, filed Aug. 7, 2008.
U.S. Appl. No. 12/189,376 of Nakata, filed Aug. 11, 2008.
U.S. Appl. No. 12/194,917 of Nakata filed Aug. 20, 2008.
U.S. Appl. No. 12/195,609 of Nakata filed Aug. 21, 2008.
U.S. Appl. No. 12/194,130 of Nakata filed Aug. 19, 2008.
U.S. Appl. No. 12/197,447 of Nakata filed Aug. 25, 2008.
U.S. Appl. No. 12/201,426 of Nakata filed Aug. 29, 2008.
U.S. Appl. No. 12/210,409 of Nakata filed Sep. 15, 2008.
U.S. Appl. No. 12/210,440 of Nakata filed Sep. 15, 2008.
U.S. Appl. No. 12/233,800 of Nakata filed Sep. 19, 2008.
U.S. Appl. No. 12/235,917 of Nakata filed Sep. 23, 2008.
U.S. Appl. No. 12/255,936 of Ishizuka filed Oct. 22, 2008.
U.S. Appl. No. 12/256,100 of Ishizuka filed Oct. 22, 2008.
U.S. Appl. No. 12/258,726 of Ishizuka filed Oct. 27, 2008.
U.S. Appl. No. 12/258,750 of Ishizuka filed Oct. 27, 2008.
Japanese Office Action dated Aug. 25, 2009, issued in corresponding Japanese Application No. 2007-258512, with English translation.

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