Procedure and device for the operating of an exhaust purification intallation for an internal combustion engine

An exhaust gas secondary treatment facility downstream to an internal combustion engine (10) has a catalytic converter system with a first catalytic converter element (FCCE) (14) including an electronic engine control with an integrated control unit (24,26). Effective energy delivery is determined from the FCCE. An independent claim is also included for a device for optimum operation of an exhaust secondary treatment facility downstream to an internal combustion engine with a catalytic converter system linked to an electronic engine control.