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1. (WO2018024959) SYSTEM FOR THE POST-TREATMENT OF EXHAUST GASES OF THE SELECTIVE CATALYTIC REDUCTION TYPE EQUIPPED WITH A SENSOR FOR THE CONCENTRATION OF REAGENT SUCH AS UREA

Pub. No.:    WO/2018/024959    International Application No.:    PCT/FR2017/051948
Publication Date: Fri Feb 09 00:59:59 CET 2018 International Filing Date: Wed Jul 19 01:59:59 CEST 2017
IPC: F01N 3/20
F02D 41/28
Applicants: PSA AUTOMOBILES SA
Inventors: SAGUE, Alain
Title: SYSTEM FOR THE POST-TREATMENT OF EXHAUST GASES OF THE SELECTIVE CATALYTIC REDUCTION TYPE EQUIPPED WITH A SENSOR FOR THE CONCENTRATION OF REAGENT SUCH AS UREA
Abstract:
The system according to the invention (1) comprises a control unit (31), a reservoir of reagent mixture (2) and a multiplexed numerical connection (10). The reservoir of reagent mixture is equipped with a reservoir management circuit (9) to which are connected a plurality of sensors (80, 81) and a plurality of actuators (4, 5, 6, 7). The reservoir management circuit communicates with the control unit via the multiplexed connection. In accordance with the invention, the plurality of sensors comprises a sensor for the quality of reagent (82) which outputs information (RQ) relating to the quality of the reagent mixture contained in the reservoir, this information relating to the quality of the reagent mixture being transmitted to the control unit via the multiplexed connection.