Abstract
Recently, electrification of the powertrain is required for heavy-duty vehicles as well. In this study, a heavy-duty PTO (power-take-off) type parallel hybrid electric vehicle (HEV) model for fuel economy simulation is developed using the OpenModelica which handles the Modelica language to analyze its fuel economy impact by the electrified powertrain. The second report first presents a method for identifying each component model using data measured on a chassis dynamometer. Next, the accuracy of the developed model is verified. Finally, the fuel economy impact for different hybrid powertrain control strategies is analyzed using the developed model.
