Concept Study of a 48V-Hybrid-Powertrain for L-Category Vehicles with Longitudinal Dynamic Simulation and Design of Experiments
The demand for high efficiency powertrains in automotive engineering is further increasing, with hybrid powertrains being a feasible option to cope with new legislations. So far hybridization has only played a minor role for L-category vehicles. Focusing on an exemplary high power 3-wheel on-road vehicle, this research shows a new development approach of a hybrid electric powertrain, which combines longitudinal dynamic simulation (LDS) with “Design of Experiments” (DoE). Furthermore, addressing the technological aspect, this paper points out how such a vehicle can benefit from 48V-hybridization of its already existing internal combustion powertrain. A fully parametric LDS model is built in Matlab/Simulink, with exchangeable powertrain components and an adaptable hybrid operation strategy. Beforehand, characterizing decisions as to focus on 48V and on parallel hybrid architecture are made. Simulative investigations in this paper focus on pure electric driving.