| 摘要 |
A method of operating a reagent metering device, which contains a metering valve that is controlled by a metering signal, at which the reagent pressure actual value is detected in the reagent path between the metering valve and the injection valve, and at which a metering rate nominal value is specified, and a device for implementing the method. The method includes influencing of the metering signal (s_DV) with the aid of a measure for the detected reagent pressure actual value and with the aid of a stored relation between the measure for the reagent pressure actual value and a metering rate actual value. The method enables an operating of the reagent metering device with only one pressure sensor in the reagent path between the injection valve and the metering valve.
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