Device and method for internal combustion engine control

Details Device and method for internal combustion engine control Device and method for internal combustion engine control

2006-05-16

2006-05-16

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, C060S284000, C060S297000

Reexamination Certificate

active

07043901

ABSTRACT:
A system for an engine has an upstream emission control device with a washcoat having a predetermined amount of precious metal disassociated with NOx storage material, where the upstream emission control device in a close coupled location to an exhaust manifold of the engine. The system also includes a downstream emission control device coupled to the upstream emission control device. Further, a controller is used for operating the engine lean with retarded ignition timing to generate heat and raise temperatures of said upstream and downstream emission control devices. The controller also determines whether temperature of said upstream device has reached a predetermined value, and in response to said determination, operates the engine rich at least to reduce NOx stored in said upstream emission control device during said lean operation.

REFERENCES:
patent: 4024706 (1977-05-01), Adawi et al.
patent: 4500650 (1985-02-01), Wyatt et al.
patent: 4678770 (1987-07-01), Wan et al.
patent: 5179060 (1993-01-01), Subramanian et al.
patent: 5437153 (1995-08-01), Takeshima et al.
patent: 5642705 (1997-07-01), Morikawa et al.
patent: 5657625 (1997-08-01), Koga et al.
patent: 5848529 (1998-12-01), Katoh et al.
patent: 5996338 (1999-12-01), Hirota
patent: 6209526 (2001-04-01), Sun et al.
patent: 6237330 (2001-05-01), Takahashi et al.
patent: 6345499 (2002-02-01), Nishimura et al.
patent: 6679050 (2004-01-01), Takahashi et al.
patent: 6684630 (2004-02-01), Uchida et al.

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