Air path models for gasoline engines with extended valve train variability

Two novel engine control models which account for multiple parameters influencing the air path in gasoline engines with extended valve train variabilities have been investigated at the Institute for Combustion Engines at RWTH Aachen University within the scope of FVV (Research Association for Combustion Engines) project 938 “Air path model for variable valve trains”. The first model constitutes static as well as learnable physical-neuronal functionalities that are integrated into the engine management software of the FVV engine control unit. The second model concerns a real-time gas exchange algorithm in which high-resolution pressure signals on the intake and exhaust port as well as the cylinder pressure signals were used. Hereby, the respective software was implemented on a high-performance rapid control prototyping unit.