Air-fuel ratio control device of internal combustion engine

Details Air-fuel ratio control device of internal combustion engine Air-fuel ratio control device of internal combustion engine

2007-02-07

2010-06-01

Wolfe, Jr., Willis R (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C701S102000, C060S274000, C060S285000, C060S301000

Reexamination Certificate

active

07729847

ABSTRACT:
The combustion air-fuel ratio is made leaner than the stoichiometric air-fuel ratio at the time of engine startup and the combustion air-fuel ratio is made richer than the stoichiometric air-fuel ratio and the exhaust downstream part of the three-way catalyst apparatus is raised in temperature when it is judged that just the exhaust upstream part of the three-way catalyst apparatus arranged in the engine exhaust system has been raised to the catalyst activation temperature.

REFERENCES:
patent: 5584176 (1996-12-01), Meyer et al.
patent: 6131439 (2000-10-01), Hamburg et al.
patent: 6499294 (2002-12-01), Katoh et al.
patent: 6976355 (2005-12-01), Imada et al.
patent: 7000385 (2006-02-01), Miyashita
patent: 7162862 (2007-01-01), Nagai et al.
patent: 7305820 (2007-12-01), Miyashita
patent: 1529944 (2005-05-01), None
patent: 05010178 (1993-01-01), None
patent: 09-096214 (1997-04-01), None
patent: 09151759 (1997-06-01), None
patent: 09222010 (1997-08-01), None
patent: 11013462 (1999-01-01), None
patent: 2000257479 (2000-09-01), None
patent: 2001-050085 (2001-02-01), None
patent: 2001207834 (2001-08-01), None
patent: 2002332833 (2002-11-01), None
patent: 2004324493 (2004-11-01), None
patent: 2004339967 (2004-12-01), None
patent: 2004346777 (2004-12-01), None
patent: 2005-188476 (2005-07-01), None
patent: 2005-264826 (2005-09-01), None
patent: 2006348753 (2006-12-01), None

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