Architecture Analysis and Energy Management of an All Terrain Military Vehicle

Nowadays environmental sustainability has become one of the main priorities in the political decision-making processes due to the climatic changes ongoing. In order to face the climate crisis, a progressive electrification of various spheres of our society is encouraged including, perhaps primarily, the automotive sector. Therefore, Engineering finds new challenges and new developmental territories, including offroad mobility in military contexts. The use of an electrified powertrain can help soldiers in different operational scenarios, thanks to features like low-noise production, high efficiency, starting torque and flexibility. In particular, this dissertation aims to describe the evolution of a new and innovative All Terrain Vehicle with a hybrid powertrain developed and produced by Oral Engineering SRL, which will be used for military purposes. The main goal was to analyze the model, provided by Oral, and to propose improvements, considering the real needs of the vehicle in complex and sometimes extreme environmental conditions, in which it will be used. Indeed, mission circuits have been recreated in order to simulate the above-mentioned conditions, for a precise analysis of the vehicle and of its performance. Thus, a great deal of thoughts and analysis went into determining the real total mass endured by the vehicle and the power heat rate of the battery, influenced by driving conditions and external temperature; afterwards, the most reliable Control Logics were discerned, which will be implemented in the Control Unit. Inevitably, all the factors listed above affect the range requirements of the buyer of the vehicle, and therefore further simulations were performed in GT Suite, using new and more suitable military test tracks, processed in MatLab. All the results were analysed in order to create a reliable background for the upcoming development of the vehicle and to have realistic terms of comparison for its future homologation.