Method and device for diagnosing components of exhaust gas system in engine system that includes internal combustion engine

The invention relates to a method for operating an engine system (1) that includes an internal combustion engine (2) and an exhaust aftertreatment device (8) in an exhaust gas discharge system (5). The method includes: carrying out a filling control in order to regulate a filling level of the exhaust aftertreatment device (8) as a function of a predefined filling level setpoint value, a lambda setpoint value for a lambda regulation being predefined as a manipulated variable; adapting the filling control with the aid of an adaptation variable that indicates a correction value for the lambda setpoint value, and storing an adaptation value as a function of an operating range of the engine system, the adaptation value in question being updated with the value of the adaptation variable for theinstantaneous operating range. 本发明涉及一种用于运行带有内燃机（2）和在废气排出系统（5）中的废气后处理装置（8）的马达系统（1）的方法，带有下列步骤：-执行填充控制，以便根据预先给定的物位额定值调节废气后处理装置（8）的物位，其中，预先给定用于控制的额定值作为调整参量；-借助适配参量来适配填充控制，所述适配参量说明了用于额定值的修正值，-根据马达系统的运行范围来储存适配值，其中，用针对瞬时运行范围的适配参量的值更