Injection control for a common rail fuel system

Details Injection control for a common rail fuel system Injection control for a common rail fuel system

2005-02-01

2005-02-01

Gimie, Mahmoud (Department: 3747)

Internal-combustion engines

Combustion chamber means having fuel injection only

Using multiple injectors or injections

C123S456000

Reexamination Certificate

active

06848414

ABSTRACT:
A system and method for controlling multiple fuel injections during a single combustion cycle for a multiple cylinder internal combustion engine having a common rail fuel distribution system determine the beginning of injection for the pilot and main injections based on crankshaft position while post injections are based on the main injection timing and an injector turn off delay determined using actual rail pressure. A rail pressure setpoint is determined based on current engine operating conditions including one or more fluid temperatures and current operating mode to provide more accurate injection control.

REFERENCES:
patent: 5884602 (1999-03-01), Friedrich et al.
patent: 6125823 (2000-10-01), Thomas
patent: 6192863 (2001-02-01), Takase
patent: 6453874 (2002-09-01), Duffy et al.
patent: 6484689 (2002-11-01), Hasegawa
patent: 6516782 (2003-02-01), Thomas
patent: 6584953 (2003-07-01), Yomogida
patent: 2001-164976 (2001-06-01), None
patent: 03069146 (2003-08-01), None

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