Control system for NOx control for cam phaser and/or EGR...

Details Control system for NOx control for cam phaser and/or EGR... Control system for NOx control for cam phaser and/or EGR...

2005-05-31

2005-05-31

Wolfe, Jr., Willis R. (Department: 3747)

Internal-combustion engines

Charge forming device

Including exhaust gas condition responsive means

C123S698000, C123S568160, C701S109000

Reexamination Certificate

active

06899093

ABSTRACT:
A vehicle control system regulates oxides of nitrogen levels in vehicle emissions. Recirculation of exhaust gas in an engine is controlled with an exhaust gas regulator valve and/or a cam phaser. An oxides of nitrogen sensor determines the level of oxides of nitrogen levels in the exhaust gas and communicates the information to a vehicle controller. The controller determines if the oxides of nitrogen levels are within a predetermined threshold according to a lookup table. The controller adjusts the valve and/or cam phaser if the oxides of nitrogen levels are not within the threshold.

REFERENCES:
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patent: 4794903 (1989-01-01), Suzuki
patent: 5060604 (1991-10-01), Seki et al.
patent: 5150694 (1992-09-01), Currie et al.
patent: 6378515 (2002-04-01), Geyer
patent: 6615646 (2003-09-01), Schell
patent: 6666201 (2003-12-01), Mazur
patent: 2001-295686 (2001-10-01), None

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