Fuel injection control device for internal combustion engine

Details Fuel injection control device for internal combustion engine Fuel injection control device for internal combustion engine

2007-11-20

2009-12-29

Kwon, John T (Department: 3747)

Internal-combustion engines

Spark ignition timing control

Electronic control

C123S406590, C123S494000, C701S105000

Reexamination Certificate

active

07637249

ABSTRACT:
A fuel injection control apparatus is provided with a fuel injection nozzle, a crank angle detector, a timer, and a control computer. The crank angle detector outputs a pulse signal corresponding to each tooth portion of a signal rotor and a pulse signal corresponding to a tooth missing portion. The control computer sets, as a fuel injection timing, a point of time at which a predetermined standby time period has elapsed from a point of time at which a reference tooth portion is detected. The control computer recognizes a tooth missing zone based on the pulse signal corresponding to the tooth missing portion. The control computer determines whether the fuel injection timing is set in a specific section in the tooth missing zone. When the fuel injection timing is set in a section outside the specific section, the control computer sets, as the predetermined standby time period, a remaining time period shorter than one inter-signal time period. In contrast, when the fuel injection timing is set to the specific section, the control computer sets, as the predetermined standby time period, a time period obtained by adding one or more inter-signal time periods to the remaining time period.

REFERENCES:
patent: 4574756 (1986-03-01), Ito et al.
patent: 4887215 (1989-12-01), Kumagai et al.
patent: 5353635 (1994-10-01), Saiki et al.
patent: 6035826 (2000-03-01), Matsuoka
patent: 7527039 (2009-05-01), Yamamura et al.
patent: 2007/0034177 (2007-02-01), Yoshizaki
patent: 8-254138 (1996-10-01), None
patent: 2000-240489 (2000-09-01), None
patent: 2002-276453 (2002-09-01), None
patent: 2002-303199 (2002-10-01), None
patent: 2003-314338 (2003-11-01), None
patent: 2005-315107 (2005-11-01), None

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