Apparent torque reserve at idle for direct injected engines

Details Apparent torque reserve at idle for direct injected engines Apparent torque reserve at idle for direct injected engines

2008-01-29

2008-01-29

Solis, Erick (Department: 3747)

Internal-combustion engines

Combustion chamber means having fuel injection only

Using multiple injectors or injections

C123S339120, C123S339160, C123S680000

Reexamination Certificate

active

07322339

ABSTRACT:
A fuel injection system for a direct fuel injection (DFI) engine is provided. The system includes: injection mode module selects a fuel injection mode to be one of a single injection mode and a dual injection mode during DFI engine idle operation based on a torque request; and a fuel injection command module that commands fuel injection events based on a crankshaft position and the fuel injection mode.

REFERENCES:
patent: 4836161 (1989-06-01), Abthoff et al.
patent: 5875757 (1999-03-01), Mizuno
patent: 5904128 (1999-05-01), Shimada et al.
patent: 6336335 (2002-01-01), Ota et al.
patent: 7194996 (2007-03-01), Koopmans
patent: 2004/0154581 (2004-08-01), Yamaoka et al.
patent: 2006/0174853 (2006-08-01), Koopmans

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