Adaptive NOx emissions control for engines with variable cam...

Details Adaptive NOx emissions control for engines with variable cam... Adaptive NOx emissions control for engines with variable cam...

2008-06-03

2008-06-03

Wolfe, Willis R. (Department: 3747)

Internal-combustion engines

Charge forming device

Including exhaust gas condition responsive means

C073S117020, C701S109000

Reexamination Certificate

active

07380547

ABSTRACT:
A control system for adjusting levels of emissions exiting an engine includes a NOx sensor that generates a NOx signal in response to oxides of nitrogen (NOx) in an exhaust gas and a control module that communicates with the cam phaser. The rotational position of the cam phaser controls an actuation time when the camshaft opens the exhaust valve during rotation of the camshaft. The control module further receives the NOx signal, and calculates a NOx level of the exhaust gas based on the NOx signal. The control module compares the NOx level to a predetermined threshold range and adjusts the cam phaser to achieve a rotational position that releases a desired level of NOx from the engine when the NOx level exceeds the predetermined threshold range. The control module further stores the rotational position in a storage device when the NOx level is within the predetermined threshold range.

REFERENCES:
patent: 6899093 (2005-05-01), Center

Affiliated with

Also associated with

Rating

Adaptive NOx emissions control for engines with variable cam... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Adaptive NOx emissions control for engines with variable cam..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adaptive NOx emissions control for engines with variable cam... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2809836