Controlling heating-up phase of catalyst arranged in exhaust gas channel of IC engine comprises determining engine load during heating-up phase and partially stopping heating measures in load phases

摘要

Controlling a heating-up phase of a catalyst (16, 18) arranged in the exhaust gas channel of an IC engine comprises determining an engine load during the heating-up phase and partially stopping heating measures in the load phases. An Independent claim is also included for a device for controlling a heating-up phase of a catalyst arranged in the exhaust gas channel of an IC engine comprising a control unit (42) for determining the engine load during the heating-up phase. Preferred Features: The catalyst is a three-way catalyst, an oxidation catalyst and/or an NOx storage catalyst.