P5.7 - NOx gas sensor designed for integration on hot components

B. Saruhan & M. Stranzenbach
In lean-burn engines operating under excess oxygen conditions (air/fuel-ratio >> 14.5), emission control becomes a challenging task to deal solely with conventional after treatment systems. Modern after treatment systems use catalysts and methods that are capable of reducing and controlling NOx-emission at higher oxygen containing atmospheres. In vehicles, emission control sensors are connected to the OBD-system to record the history of the emission reduction and to track the function of the catalytic converter. This is...
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