Fuel system diagnostic systems and methods

Details Fuel system diagnostic systems and methods Fuel system diagnostic systems and methods

2011-08-02

2011-08-02

Kirkland, III, Freddie (Department: 2855)

Measuring and testing

Internal combustion engine or related engine system or...

Fuel system or part thereof

Reexamination Certificate

active

07987704

ABSTRACT:
A diagnostic system comprises a monitoring module and a diagnostic module. The monitoring module receives a first rail pressure measured by a high side rail pressure sensor during engine cranking at a location where fuel is pressurized by a high pressure fuel pump. The diagnostic module selectively diagnoses a fault in at least one of the high pressure fuel pump and the high side rail pressure sensor when the first rail pressure is less than a predetermined pressure and rail pressures received during a predetermined period after the first rail pressure is received are less than the predetermined pressure.

REFERENCES:
patent: 5241933 (1993-09-01), Morikawa
patent: 5983714 (1999-11-01), Izumiura et al.
patent: 6032639 (2000-03-01), Goto et al.
patent: 6283108 (2001-09-01), Matsufuji et al.
patent: 6502551 (2003-01-01), Antonioli et al.
patent: 6907775 (2005-06-01), Hosoya
patent: 7137294 (2006-11-01), Eser et al.
patent: 7472690 (2009-01-01), Takayanagi et al.
patent: 7706962 (2010-04-01), Fushiki et al.
patent: 2006/0144130 (2006-07-01), Eser et al.
patent: 2007/0246021 (2007-10-01), Takayanagi et al.
patent: 2007/0251502 (2007-11-01), Takayanagi et al.
patent: 2010/0147058 (2010-06-01), Cinpinski et al.
patent: 2010/0275679 (2010-11-01), Wang et al.
patent: 2010/0280741 (2010-11-01), Wang et al.
patent: 2010/0280742 (2010-11-01), Gwidt et al.

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