Detailed Powertrain Dynamics Modelling in Dymola - Modelica

Two Modelica libraries for engine and powertrain modeling are presented called the Powertrain Dynamics library and the Engines library. Together, these libraries enable the modeling and simulation of powertrain systems including their fluid dynamic, pollutant emission, mechanical and thermal performance in one simulation environment (Dymola). The libraries are defined using the object orientated modelling language Modelica.The libraries are used to study the response of the vehicle and powertrain during dynamic driving events such as vehicle launch, tip-in and tip-out driveability and powertrain nvh. The benefits of using a dynamic torque converter model compared to a steady state model for these applications are presented.