METHODS AND SYSTEMS FOR AN EXHAUST GAS TREATMENT ARRANGEMENT
Methods and systems are provided for an exhaust aftertreatment arrangement. In one example, a system includes a LNT upstream of an SCR with an oxygen storage component arranged therebetween, and where a rich operation of an engine is limited based on an oxygen load of the oxygen storage component wh...
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Main Authors | , , , , |
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Format | Patent |
Language | English |
Published |
08.08.2019
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Subjects | |
Online Access | Get full text |
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Summary: | Methods and systems are provided for an exhaust aftertreatment arrangement. In one example, a system includes a LNT upstream of an SCR with an oxygen storage component arranged therebetween, and where a rich operation of an engine is limited based on an oxygen load of the oxygen storage component when an exhaust gas temperature is higher than a limit temperature. |
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Bibliography: | Application Number: US201916268100 |