Patent ID: 7452724
Filing Date: 2008-11-18
Classification: B01D,F01N,Y02A,Y02T,Y10T

Abstract:
1. A method for operating a metering unit of a catalytic converter of a combustion system, the method comprising: metering a quantity of at least one reagent into an exhaust gas; determining a steady-state value of the reagent to be metered based on an assumed steady-state operating state of at least one of the catalytic converter and the combustion system; and adjusting the steady-state reagent value using at least one dynamic correction factor for a dynamic adjustment; wherein, as a function of at least one performance characteristic of the combustion system, steady-state values, including the steady-state value of the reagent to be metered, are each obtained from a steady-state characteristics map which was recorded during an assumed steady-state operating state of at least one of the catalytic converter and the combustion system.