Reductant dosing correction during no dosing periods
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United States of America Patent
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Oct 13, 2020
Grant Date -
Dec 22, 2016
app pub date -
Jun 16, 2016
filing date -
Jun 18, 2015
priority date (Note) -
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Abstract
A system may include a NOx sensor and a controller. The controller may be configured to interpret a value of a first parameter indicative of an amount of NOx measured by the NOx sensor and interpret a value of a second parameter for a NOx value from a look-up table. The controller may be further configured to determine a correction factor based on the value of the first parameter and the value of the second parameter and generate a dosing command based, at least in part, on the determined correction factor. In some implementations, the NOx value from the look-up table may be based on one or more operating conditions of an engine. In some implementations, the controller may be further configured to update a NOx value of the look-up table based on the determined correction factor.
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