An Analysis of a Heavy-Duty Diesel Truck Powertrain System Hybridization

Özener O., Karaca Y., Bayburtlu C., Yiğit H. K.

16th International Combustion Symposium (INCOS2022), Aydın, Turkey, 8 - 11 September 2022, pp.155-157

  • Publication Type: Conference Paper / Full Text
  • City: Aydın
  • Country: Turkey
  • Page Numbers: pp.155-157
  • Yıldız Technical University Affiliated: Yes


The main purpose of this study is to evaluate the potential benefits that can be obtained by applying various electrical components to 40 tons heavy-duty long-haul truck. A realistic base long-haul truck was modelled in a simulation environment with conventional drivetrain components, and on top of that, degrees of freedom were added to the system with electrical components and controllers, providing hybridization opportunities in terms of fuel economy improvement. The Heavy-Heavy-Duty Diesel Truck (HHDDT) and Vehicle Energy Consumption Calculator Long Haul (VECTOLH) cycles were examined. In addition to the base vehicle used in this study, each hybrid vehicle configuration was modelled on the AVL CruiseM™ using a representative internal combustion engine (ICE), battery pack and electric propulsion components. The hybridization of the long-haul truck provides fuel savings of up to 4.3% compared to the conventional vehicle. In addition, the same powertrain configuration provides a 28.7% reduction in tailpipe NOx emissions and a 17.9% reduction in urea consumption.