DETECTING REDUCTANT QUALITY USING A VIRTUAL SENSOR

A method (300) for estimating a quality of reductant in an engine aftertreatment system (14) for an engine (12) using a virtual sensor, the method comprising: determining whether an enablement condition is met, wherein the enablement condition is one or more of: a reductant fill condition determined...

Full description

Saved in:
Bibliographic Details
Main Authors BIERLE, Austin, JOSHI, Urvish, VENKATARAGHAVAN, Jay, SCHONERT, Kent, LIU, Baoyong, LOMBARDI, Frank
Format Patent
LanguageEnglish
French
German
Published 04.10.2023
Subjects
BLASTING
ENGINE PLANTS IN GENERAL
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL
HEATING
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
STEAM ENGINES
WEAPONS
Online AccessGet full text

Cover

More Information
Summary:A method (300) for estimating a quality of reductant in an engine aftertreatment system (14) for an engine (12) using a virtual sensor, the method comprising: determining whether an enablement condition is met, wherein the enablement condition is one or more of: a reductant fill condition determined based on data received from one or more float sensors (160) associated with the engine; a machine start condition determined based on machine speed data obtained from a speed sensor associated with the engine; and/or a rationality check condition determined based on data associated with a fault of one or more sensors associated with the engine (12); upon determining that the enablement condition is met, receiving NOx measurement data obtained from at least one NOx sensor (180); generating a reductant quality value based on the NOx measurement data; and outputting a reductant quality determination based on the reductant quality value.
Bibliography:Application Number: EP20230159530