P2 motor cooling circuit filling strategy: the case of the Ferrari 849 Testarossa

This master thesis describes the work carried out at Ferrari S.p.A. aimed at analyzing and optimizing the filling strategies for the cooling circuit of the P2 electric motor of the new Ferrari 849 Testarossa. The objective of the work was to identify an effective procedure that would ensure the introduction of the correct amount of cooling oil into the circuit, minimizing processing times on the assembly line. After an initial phase of studying the P2 system and the filling machine, various filling strategies were analyzed through simulations and experimental bench tests. The tests made it possible to evaluate the influence of parameters such as vacuum pressure, the circuit pump activation sequence and the use of multiple filling cycles. The obtained results highlighted the possibility of significantly reducing the presence of air bubbles within the circuit and the overall cycle times, identifying an optimal configuration applicable in production. The work therefore contributed concretely to improving the efficiency of the filling process, with positive repercussions on the quality and reliability of the vehicle's cooling system.