Integrated-starter-generator (ISG) motors are a key part of new-energy vehicle dynamic systems. To more efficiently design\nhigher-performance permanent magnet ISG motors, we proposed a multiphysical-domain integrated design method by designing\nthe electromagnetism and thermal performance of motors and the mechanical structure strength of rotors together. A 48-slot and\n8-pole oil-cooled permanent magnet ISG motor was designed by using this method and simulated via the finite element method.\nAlso, a motor-testing platform was built to experimentally validate this method. The simulation results were consistent with the\ntest results, which confirmed that the new method was accurate and effective and can be referred to during the practical design and\ndevelopment of high-density permanent magnet motors.
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