Internal-combustion engines – Charge forming device – Including exhaust gas condition responsive means
Reexamination Certificate
2006-07-11
2006-07-11
Huynh, Hai (Department: 3747)
Internal-combustion engines
Charge forming device
Including exhaust gas condition responsive means
C123S305000, C123S090150, C123S345000, C701S103000
Reexamination Certificate
active
07073493
ABSTRACT:
A control apparatus calculates a exhaust gas air-fuel ratio of a plurality of cylinders, in which the operation angle of an intake valve is set to a predetermined operation angle, e.g., a maximum operation angle, based on a value output from an air-fuel ratio sensor so as to minimize a variation in an fuel injection quantity between the plurality of cylinders by that exhaust gas air-fuel ratio. That is, the exhaust gas air-fuel ratio of the plurality of cylinders, in which the valve opening characteristics of the intake valve and an exhaust valve are set such that the intake air amount to be introduced into the plurality of cylinders is limited by the opening amount of a throttle valve, for example, and not limited by the valve opening characteristics of the intake valve or the exhaust valve is calculated, and the variation in the fuel injection quantity among the plurality of cylinders is then reduced by that exhaust gas air-fuel ratio. Then, the variation in valve opening characteristics among the cylinders is reduced.
REFERENCES:
patent: 5115782 (1992-05-01), Klinke et al.
patent: 5377654 (1995-01-01), LoRusso et al.
patent: 6148791 (2000-11-01), Fujieda et al.
patent: 6234144 (2001-05-01), Yamaguchi et al.
patent: 6244241 (2001-06-01), Mamiya et al.
patent: 6286478 (2001-09-01), Atago et al.
patent: 6343585 (2002-02-01), Fujieda et al.
patent: 6453871 (2002-09-01), Fujieda et al.
patent: 6564763 (2003-05-01), Shiraishi et al.
patent: 2001/0045194 (2001-11-01), Shiraishi et al.
patent: 2002/0017256 (2002-02-01), Shiraishi et al.
patent: 2004/0231624 (2004-11-01), Shindou et al.
patent: 2005/0217620 (2005-10-01), Shindou
patent: 44 08 880 (1995-09-01), None
patent: 0 433 632 (1991-06-01), None
patent: 1 063 407 (2000-12-01), None
patent: 1229230 (2002-08-01), None
patent: A 59-101562 (1984-06-01), None
patent: A 1-142238 (1989-06-01), None
patent: A 5-180040 (1993-07-01), None
patent: A 6-213044 (1994-08-01), None
patent: A 9-88685 (1997-03-01), None
patent: A 9-96236 (1997-04-01), None
patent: A 2000-161085 (2000-06-01), None
patent: 2004-132314 (2004-04-01), None
patent: WO99/47800 (1999-09-01), None
patent: WO 01/04465 (2001-01-01), None
Asada Toshiaki
Fuwa Naohide
Nakasaka Yukihiro
Sadakane Shinji
Huynh Hai
Oliff & Berridg,e PLC
Toyota Jidosha & Kabushiki Kaisha
LandOfFree
Control apparatus for multi-cylinder internal combustion... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Control apparatus for multi-cylinder internal combustion..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control apparatus for multi-cylinder internal combustion... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3555556