METHOD FOR ACTUATING AT LEAST ONE DOSING VALVE

The invention relates to a method for actuating at least one dosing valve (16) for selective catalytic reduction, in which a solution is introduced through the at least one dosing valve (16) into an exhaust gas system by opening the at least one dosing valve (16), an amount of the solution to be int...

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Bibliographische Detailangaben
Hauptverfasser: HORN CARINA, PETRY, MARC, GUENALIN LAURENT, MEISER KARLHEINZ
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention relates to a method for actuating at least one dosing valve (16) for selective catalytic reduction, in which a solution is introduced through the at least one dosing valve (16) into an exhaust gas system by opening the at least one dosing valve (16), an amount of the solution to be introduced is determined, and the at least one dosing valve (16) is actuated by a drive (22), in order to open the at least one dosing valve (16), the phase of opening the at least one dosing valve (16) is interrupted, such that the phase of opening the dosing valve (16) and the phase of closing the dosing valve (16) proceed alternately in succession, in a phase in which the dosing valve (16) is opened, a request for dosing in a next phase in which the dosing valve (16) is opened and an amount dosed in the phase in which the dosing valve (16) is opened have been calculated. 本发明涉及一种用于操控用于选择性催化还原的至少一个配量阀(16)的方法,其中,通过打开至少一个配量阀(16)的方式将溶液通过所述至少一个配量阀(16)引入到排气系中,求取待引入的溶液的量并且通过驱动器(22)相应地操控所述至少一个配量阀(16),以便打开所述至少一个配量阀(16),中断所述至