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Adaptive Reductant Dosing and Emission Control Strategies

Abstract: 

The present disclosure relates to a method or apparatus for controlling reductant dosing level introduced to a selective catalytic reduction device. The method or apparatus may determine available reductant and determine a distance to a source of reductant. This may be followed by adjusting a reductant dosing level based upon the available reductant and the distance to the reductant source. The apparatus may be installed in a vehicle and may also regulate in-cylinder emission control variables to reduce NOx emissions.

Patent Number: 
7,991,533
Date Of Issue: 
08/02/2011
Inventors: 

Yiqun Huang