Device for controlling an internal combustion engine

Power plants – Internal combustion engine with treatment or handling of... – By means producing a chemical reaction of a component of the...

Reexamination Certificate

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Details

C060S280000, C060S284000, C060S300000, C180S065230, C180S065310, C180S065510

Reexamination Certificate

active

07121084

ABSTRACT:
In elevating the exhaust gas temperature for conducting the sulfur contamination-removing operation for a NOxoccluding and reducing catalyst, a motor/generator is driven by the electric power from a battery while operating an internal combustion engine of a hybrid vehicle to produce a low output, and the wheels are driven via the internal combustion engine, power change-over mechanism and transmission. A motor assist is effected for increasing the output of the motor/generator during a period in the expansion stroke in each cylinder of the engine to increase the engine rotational speed during the above period only. Then, the exhaust valve is opened before the combustion is completed in the cylinder, and the exhaust gas temperature is raised.

REFERENCES:
patent: 5323868 (1994-06-01), Kawashima
patent: 6059057 (2000-05-01), Yamazaki et al.
patent: 6173569 (2001-01-01), Kusada et al.
patent: 6327852 (2001-12-01), Hirose
patent: 6434928 (2002-08-01), Manaka
patent: 6657315 (2003-12-01), Peters et al.
patent: 6742327 (2004-06-01), Inoue et al.
patent: A 7-91306 (1995-04-01), None
patent: A 2002-221062 (2002-08-01), None
patent: A 2002-285883 (2002-10-01), None

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