Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Varun Ramesh0
Charles Wayne Reinhardt Swart0
Maarten Meijer0
Cynthia Chaffin Webb0
Date of Patent
March 12, 2024
0Patent Application Number
179655400
Date Filed
October 13, 2022
0Patent Citations
Patent Primary Examiner
Patent abstract
The present disclosure describes methods for evaluating quality of DEF dosed to an EAS including a close coupled SCR unit a downstream SCR unit. A NOx conversion efficiency of the close coupled SCR unit and a NOx conversion efficiency of the downstream SCR unit are used to evaluate quality of DEF. In some embodiments, the NOx conversion efficiency of close coupled SCR unit is used to evaluate quality of DEF. Operation of an EAS using the results of the evaluation of quality of DEF are described.
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