Control system for internal combustion engine

Details Control system for internal combustion engine Control system for internal combustion engine

2007-03-20

2007-03-20

Denion, Thomas (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

C123S090150

Reexamination Certificate

active

10859540

ABSTRACT:
A control system for an internal combustion engine, which is capable of reducing exhaust emissions during and after the start of the engine. A control system is capable of changing the valve-closing timing of intake valves relative to the valve-opening timing thereof as desired using a variable intake valve actuation assembly. The control system includes an ECU. The ECU sets a target auxiliary intake cam phase to a start value that sets the valve-closing timing of the intake valves to retarded-closing timing, during starting of the engine, and to a catalyst warmup value that sets the same to timing closer to timing in the Otto cycle operation, during catalyst warmup control after the start of the engine.

REFERENCES:
patent: 5592906 (1997-01-01), Kreuter et al.
patent: 6135076 (2000-10-01), Benlloch Martinez
patent: 6352060 (2002-03-01), Bentley
patent: 6360531 (2002-03-01), Wiemero et al.
patent: 6691506 (2004-02-01), Shimizu

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