Dedicated modeling of Electric Motors for hybrid electric powertrains

The electrification of transport, particularly in the automotive industry, refers to the transition from traditional internal combustion engine (ICE) vehicles to electric vehicles (EVs) powered by electricity. This shift is driven by the need to reduce greenhouse gas emissions, mitigate climate change, and address environmental concerns associated with fossil fuel consumption. There are several advantages to using electric vehicles compared to traditional ICE vehicles. First and foremost, EVs produce zero tailpipe emissions, reducing air pollution and improving air quality. The electrification of automotive transport presents opportunities for increased energy efficiency. Electric vehicles are powered by one or more electric motors, which are fueled by rechargeable batteries. Electric motors are generally more efficient than internal combustion engines, converting a higher percentage of stored energy into motion. This thesis work concerns the electromagnetic study of an e-motor, in detail an IPM-SynRM from the Toyota Prius. The purpose of this study is to obtain a model of the machine that describes it in energetic way. This model is represented by the efficiency map of the machine through which a thermal study of the system can be performed. It is important to specify the thermal study is not in the frame of this work. The used strategy combines FEM simulations with machine's analytical model in order to obtain accurate data with the aim to save computation time since to simulate the motor in all possible conditions, thousands of analyses have to be done.