Simulation of dynamic performances of electric-hybrid heavy working vehicles

Abstract: In this work performances of an electric hybrid version of a telehandler working machine are studied with a numerical model developed in Matlab/Simulink®. The algorithm, focused on the electric driveline performances, has been developed in a modular approach. Within each module a specific dynamic aspect of the working machine is studied. The hybrid/electric model is validated in different operational conditions by means of full scale experiments of the vehicle on test bench. The so validated model can be used to simulate different hybrid architectures reducing the number of prototype versions and test bench experiments. A comparison between performances of two different architectures of the electric hybrid telehandler is presented in the paper. The former with a conventional mechanical traction driveline and the other with in wheel motors. The comparison has been carried out, taking into account only the electric traction behaviour, in terms of performances and energy consumption.