Method and control unit for adjusting in a turbocharger a turbine flow cross section

摘要

The method involves determining the lower limit of a range of adjustable values of a turbine flow cross section in non-steady operating conditions based on an operating parameter of an internal combustion engine e.g. diesel engine. Number of revolutions (n) of the internal combustion engine is used as the operating parameter. The operating parameter is varied with a load of the internal combustion engine, and is a measure for a fuel injection amount or a combustion chamber filling with air or fuel/air mixture. An independent claim is also included for a controller for adjusting a turbine flow cross section of a turbocharger of an internal combustion engine.