METHODS AND SYSTEMS FOR AN AFTERTREATMENT ARRANGEMENT
Methods and systems are provided for partially regenerating a lean NOx trap in response to an engine shutdown request. In one example, an engine shutdown is delayed so that a low-temperature storing region of the lean NOx trap is regenerated without regenerating a high-temperature storing region of...
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Main Authors | , , |
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Format | Patent |
Language | English |
Published |
19.09.2019
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Subjects | |
Online Access | Get full text |
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Summary: | Methods and systems are provided for partially regenerating a lean NOx trap in response to an engine shutdown request. In one example, an engine shutdown is delayed so that a low-temperature storing region of the lean NOx trap is regenerated without regenerating a high-temperature storing region of the lean NOx trap. A battery charge is replenished during the shutdown, wherein the charge may be consumed during a subsequent engine operation. |
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Bibliography: | Application Number: US201916354093 |