Internal-combustion engines – Accessories – Covers – trays – vibrators – corrosion inhibitors – air filters
Reexamination Certificate
2006-05-23
2006-05-23
Yuen, Henry C. (Department: 3747)
Internal-combustion engines
Accessories
Covers, trays, vibrators, corrosion inhibitors, air filters
C123S568120
Reexamination Certificate
active
07047932
ABSTRACT:
A method is disclosed for controlling operation of an engine coupled to an exhaust treatment catalyst. Under predetermined conditions, the method operates an engine with a first group of cylinders combusting a lean air/fuel mixture and a second group of cylinders pumping air only (i.e., without fuel injection). In addition, the engine control method also provides the following features in combination with the above-described split air/lean mode: idle speed control, sensor diagnostics, air/fuel ratio control, adaptive learning, fuel vapor purging, catalyst temperature estimation, default operation, and exhaust gas and emission control device temperature control. In addition, the engine control method also changes to combusting in all cylinders under preselected operating conditions such as fuel vapor purging, manifold vacuum control, and purging of stored oxidants in an emission control device.
REFERENCES:
patent: 3696318 (1972-10-01), Boyd et al.
patent: 3969932 (1976-07-01), Rieger et al.
patent: 4033122 (1977-07-01), Masaki et al.
patent: 4036014 (1977-07-01), Ariga
patent: 4134261 (1979-01-01), Iizuka et al.
patent: 4178883 (1979-12-01), Herth
patent: 4207855 (1980-06-01), Phillips
patent: 4251989 (1981-02-01), Norimatsu et al.
patent: 4274373 (1981-06-01), Sugasawa et al.
patent: 4320726 (1982-03-01), Etoh et al.
patent: 4344393 (1982-08-01), Etoh et al.
patent: 4376426 (1983-03-01), Iizuka et al.
patent: 4409949 (1983-10-01), Tanaka et al.
patent: 4467602 (1984-08-01), Iizuka et al.
patent: 4484548 (1984-11-01), Sugasawa et al.
patent: 4622809 (1986-11-01), Abthoff et al.
patent: 4854123 (1989-08-01), Inoue
patent: 4860716 (1989-08-01), Deutschmann
patent: 4884066 (1989-11-01), Miyata et al.
patent: 4913122 (1990-04-01), Uchida et al.
patent: 4964272 (1990-10-01), Kayanuma
patent: 5009210 (1991-04-01), Nakagawa et al.
patent: 5088281 (1992-02-01), Izutani et al.
patent: 5097700 (1992-03-01), Nakane
patent: 5165230 (1992-11-01), Kayanuma et al.
patent: 5174111 (1992-12-01), Nomura et al.
patent: 5189876 (1993-03-01), Hirota et al.
patent: 5201802 (1993-04-01), Hirota et al.
patent: 5209061 (1993-05-01), Takeshima
patent: 5222471 (1993-06-01), Stueven
patent: 5233830 (1993-08-01), Takeshima et al.
patent: 5267439 (1993-12-01), Raff et al.
patent: 5270024 (1993-12-01), Kasahara et al.
patent: 5272871 (1993-12-01), Oshima et al.
patent: 5325664 (1994-07-01), Seki et al.
patent: 5331809 (1994-07-01), Takeshima et al.
patent: 5335538 (1994-08-01), Blischke et al.
patent: 5357750 (1994-10-01), Ito et al.
patent: 5377484 (1995-01-01), Shimizu
patent: 5402641 (1995-04-01), Katoh et al.
patent: 5410873 (1995-05-01), Tashiro
patent: 5412945 (1995-05-01), Katoh et al.
patent: 5412946 (1995-05-01), Oshima et al.
patent: 5414994 (1995-05-01), Cullen et al.
patent: 5419122 (1995-05-01), Tabe et al.
patent: 5423181 (1995-06-01), Katoh et al.
patent: 5433074 (1995-07-01), Seto et al.
patent: 5437153 (1995-08-01), Takeshima et al.
patent: 5448887 (1995-09-01), Takeshima
patent: 5450722 (1995-09-01), Takeshima et al.
patent: 5452576 (1995-09-01), Hamburg et al.
patent: 5472673 (1995-12-01), Goto et al.
patent: 5473887 (1995-12-01), Takeshima et al.
patent: 5473890 (1995-12-01), Takeshima et al.
patent: 5479898 (1996-01-01), Cullen et al.
patent: 5483795 (1996-01-01), Katoh et al.
patent: 5496228 (1996-03-01), Takata et al.
patent: 5497745 (1996-03-01), Cullen et al.
patent: 5544482 (1996-08-01), Matsumoto et al.
patent: 5551231 (1996-09-01), Tanaka et al.
patent: 5562086 (1996-10-01), Asada et al.
patent: 5577382 (1996-11-01), Kihara et al.
patent: 5595060 (1997-01-01), Togai et al.
patent: 5598703 (1997-02-01), Hamburg et al.
patent: 5622047 (1997-04-01), Yamashita et al.
patent: 5626014 (1997-05-01), Hepburn et al.
patent: 5626117 (1997-05-01), Wright et al.
patent: 5655363 (1997-08-01), Ito et al.
patent: 5657625 (1997-08-01), Koga et al.
patent: 5693877 (1997-12-01), Ohsuga et al.
patent: 5713199 (1998-02-01), Takeshima et al.
patent: 5715679 (1998-02-01), Asanuma et al.
patent: 5722236 (1998-03-01), Cullen et al.
patent: 5724808 (1998-03-01), Ito et al.
patent: 5732554 (1998-03-01), Sasaki et al.
patent: 5735119 (1998-04-01), Asanuma et al.
patent: 5740669 (1998-04-01), Kinugasa et al.
patent: 5743084 (1998-04-01), Hepburn
patent: 5746049 (1998-05-01), Cullen et al.
patent: 5746052 (1998-05-01), Kinugasa et al.
patent: 5752492 (1998-05-01), Kato et al.
patent: 5758616 (1998-06-01), Motose
patent: 5771685 (1998-06-01), Hepburn
patent: 5771686 (1998-06-01), Pischinger et al.
patent: 5778666 (1998-07-01), Cullen et al.
patent: 5792436 (1998-08-01), Feeley et al.
patent: 5802843 (1998-09-01), Kurihara et al.
patent: 5803048 (1998-09-01), Yano et al.
patent: 5832722 (1998-11-01), Cullen et al.
patent: 5842340 (1998-12-01), Bush et al.
patent: 5865027 (1999-02-01), Hanafusa et al.
patent: 5930992 (1999-08-01), Esch et al.
patent: 5938715 (1999-08-01), Zhang et al.
patent: 5950603 (1999-09-01), Cook et al.
patent: 5970707 (1999-10-01), Sawada et al.
patent: 5974788 (1999-11-01), Hepburn et al.
patent: 5974791 (1999-11-01), Hirota et al.
patent: 5974793 (1999-11-01), Kinugasa et al.
patent: 5983627 (1999-11-01), Asik
patent: 5992142 (1999-11-01), Pott
patent: 5996338 (1999-12-01), Hirota
patent: 6012428 (2000-01-01), Yano et al.
patent: 6014859 (2000-01-01), Yoshizaki et al.
patent: 6023929 (2000-02-01), Ma
patent: 6058700 (2000-05-01), Yamashita et al.
patent: 6158218 (2000-12-01), Herold et al.
patent: 6161531 (2000-12-01), Hamburg et al.
patent: 6189316 (2001-02-01), Surnilla et al.
patent: 6247445 (2001-06-01), Langer
patent: 6276138 (2001-08-01), Welch
patent: 6349710 (2002-02-01), Kawai et al.
patent: 6360713 (2002-03-01), Kolmanovsky et al.
patent: 6367443 (2002-04-01), Bassi et al.
patent: 6382193 (2002-05-01), Boyer et al.
patent: 6389806 (2002-05-01), Glugla et al.
patent: 6408618 (2002-06-01), Ide
patent: 6415601 (2002-07-01), Glugla et al.
patent: 6516509 (2003-02-01), Ono et al.
patent: 6546910 (2003-04-01), Tanaka et al.
patent: 6568177 (2003-05-01), Surnilla
patent: 6619241 (2003-09-01), Otterspeer et al.
patent: 6679221 (2004-01-01), Bassi et al.
patent: 6715462 (2004-04-01), Bidner et al.
patent: 6769398 (2004-08-01), Surnilla et al.
patent: 2001/0011540 (2001-08-01), Mashiki
patent: 19607151 (1997-07-01), None
patent: 10107158 (2001-08-01), None
patent: 0351197 (1990-01-01), None
patent: 0444783 (1991-09-01), None
patent: 0503882 (1992-09-01), None
patent: 0580389 (1994-01-01), None
patent: 55-29002 (1980-03-01), None
patent: 55-49549 (1980-04-01), None
patent: 62-117620 (1987-05-01), None
patent: 62-976630 (1987-05-01), None
patent: 64-53042 (1989-03-01), None
patent: 2-30915 (1990-02-01), None
patent: 2-33408 (1990-02-01), None
patent: 2-207159 (1990-08-01), None
patent: 3-135417 (1991-06-01), None
patent: 5-26080 (1993-02-01), None
patent: 5-106493 (1993-04-01), None
patent: 5-106494 (1993-04-01), None
patent: 6-58139 (1994-03-01), None
patent: 6-264787 (1994-09-01), None
patent: 7-97941 (1995-04-01), None
patent: 7-166851 (1995-06-01), None
patent: 98/27322 (1998-06-01), None
Joe Theis et al, “An Air/Fuel Algorithm To Imprive the NOxConversion Of Copper-Based Catalysts”, SAE Tachnical Paper No. 922251, Oct. 19-22, 1992, pp. 77-89.
Y. Kaneko et al, “Effect of Air-Fuel Ratio Modulation on Conversion Efficiency of Three-Way Catalysts”, Inter-Industry Emission Control Program 2 (IIEC-2) Progress Report No. 4, SAE Technical Paper No. 780607, Jun. 5-9, 1978, pp. 119-127.
Alan F. Diwell, “Engineered Control Strategies For Improved Catalytic of NOxin Lean Burn Applications”, SAE Tachnical Paper No. 881595, 1998, pp. 1-11.
Allen H. Meitzler, “Application of Exhaust-Gas-Oxygen Sensors to the Study of Storage Effects in Automotive Three-Way Catalysts”, SAE 800019, Feb. 25-29, 1980.
W.H. Holl, “Air Fuel Control to Reduce Emissions, II. Engine-Cataysts Characterization Under Cyclic Conditions”, SAE 800052, Feb. 25-29, 1980.
Wei-Ming Wang, “Air Fuel Control to Reduce Emissions, I. Engine-Emissions Relatiionsh
Michelini John Ottavio
Roth John M.
Surnilla Gopichandra
Alleman Hall McCoy Russell & Tuttle LLP
Benton Jason
Ford Global Technologies LLC
Lippa Allan J.
Yuen Henry C.
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