Engine fuel injection control system

Details Engine fuel injection control system Engine fuel injection control system

2006-03-07

2006-03-07

Tran, Binh Q. (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

C060S274000, C060S278000, C060S285000, C060S295000, C060S311000

Reexamination Certificate

active

07007463

ABSTRACT:
An engine fuel injection control system including a particulate filter is configured to compare an accelerator request fuel injection quantity based on an accelerator depression amount to an air fuel ratio request fuel injection quantity determined based on a target air fuel ratio based on the engine operating condition. The engine fuel injection control system is configured to select the smaller of the accelerator request fuel injection quantity and the air fuel ratio request fuel injection quantity as a target fuel injection quantity. When the engine is operating in a low rotational speed region with full load, the target air fuel ratio is adjusted to a value substantially equal to the air fuel ratio that provides a maximum torque. Thus, the fuel is injected to achieve an air fuel ratio close to the stoichiometric air fuel ratio the torque performance and acceleration performance can be improved.

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patent: 6952920 (2005-10-01), Shirakawa
patent: 7-26935 (1995-01-01), None

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