Power plants – Internal combustion engine with treatment or handling of... – By means producing a chemical reaction of a component of the...
Reexamination Certificate
2007-06-25
2010-11-16
Denion, Thomas E (Department: 3748)
Power plants
Internal combustion engine with treatment or handling of...
By means producing a chemical reaction of a component of the...
C060S273000, C060S285000, C060S300000
Reexamination Certificate
active
07832195
ABSTRACT:
Super retard combustion is performed in which an ignition timing is set to be after a compression top dead center and fuel is injected before the ignition timing and after the compression top dead center, at cold start or the like which requires early warming-up of a catalyst. During an idle operation without the super retard combustion, a first ISC control is executed in which a feedback control is provided for the degree of opening of a throttle and the ignition timing so that an engine speed corresponds to a target idle speed (S14). On the other hand, during the super retard combustion, a second ISC control is executed in which the control of the degree of opening of the throttle is inhibited, but the ignition timing is advanced because a catalyst may be thermally damaged when the amount of intake air is increased in accordance with an increase in load of an auxiliary device and the like (S15).
REFERENCES:
patent: 2004/0163378 (2004-08-01), Sasaki et al.
patent: 2000179362 (2000-06-01), None
patent: 2004270504 (2004-09-01), None
patent: 2005214039 (2005-08-01), None
Denion Thomas E
Global IP Counselors, LLP
Klasterka Audrey
Nissan Motor Co,. Ltd.
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