Method of heating motor vehicle catalytic converter, involves reducing engine power at initial cold starting point

摘要

The method for heating a motor vehicle catalytic converter (18,20) in an exhaust system for the engine (10) involves reducing the engine output after a cold start during the exhaust phase at least instantaneously to increase the energy flow towards the exhaust. The energy flow reduces during the exhaust phase from a maximum at the initial point. Claims include an installation for carrying out the method.