Invention Grant
- Patent Title: Process for optimizing a removal of nitrogen oxides from the gases in an engine exhaust line according to a selective catalytic reduction
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Application No.: US16339037Application Date: 2017-11-24
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Publication No.: US10648386B2Publication Date: 2020-05-12
- Inventor: Steven Maertens
- Applicant: Continental Automotive France , Continental Automotive GmbH
- Applicant Address: FR Toulouse DE Hannover
- Assignee: Continental Automotive France,Continental Automotive GmbH
- Current Assignee: Continental Automotive France,Continental Automotive GmbH
- Current Assignee Address: FR Toulouse DE Hannover
- Agency: RatnerPrestia
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@b30f2f6
- International Application: PCT/FR2017/053249 WO 20171124
- International Announcement: WO2018/096292 WO 20180531
- Main IPC: F01N3/20
- IPC: F01N3/20 ; F01N9/00 ; F01N11/00

Abstract:
A process for optimizing a depollution of nitrogen oxides from the gases in an engine exhaust line carried out according to a selective catalytic reduction by injection of a quantity of reducing agent into the line makes it possible to monitor a setpoint of the amount of nitrogen oxides per second at the outlet of the line. A readjustment of the setpoint is made at each completion of successive running distance intervals determined by integration of the speed over a time interval that ends as soon as a predetermined target cumulative amount of carbon dioxide released is reached, an amount of nitrogen oxides at the outlet per kilometer traveled being calculated for each interval from a cumulative amount of nitrogen oxides measured at the outlet and compared with a target amount of nitrogen oxides per kilometer for the calculation of a deviation used for the readjustment of the setpoint.
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