本文探讨了新能源汽车电机驱动系统的关键技术及发展趋势，包括驱动控制器中的功率半导体器件及封装、智能门极驱动、基于器件的系统集成设计，以及驱动电机中的扁铜线、多相永磁电机、永磁同步磁阻电机等关键技术。其中，着重介绍了当前车用电机驱动技术的发展趋势，并指出永磁同步电机在未来10 年内将依然是新能源汽车市场的主流驱动电机。同时，通过横向比较指出当前我国在驱动电机发展道路上所面临的关键问题，可以为我国未来新能源汽车技术发展提供一定参考。

This study investigates key technologies and development trends for the motor drive system of new energy vehicles, including power semiconductor devices and their packaging, smart gate drivers, and the device-based system integration design, for the drive controllers; it also explores new motor technologies related to the hair-pin winding, multiphase permanent motor, and permanent magnet synchronous reluctance motor. The study emphatically presents the development trends of the motor drive technologies for vehicles, and points out that permanent magnet synchronous motors will remain the main-stream drive motors in the new energy vehicle market within the next 10 years. Meanwhile, this study reveals several key issues existing in drive motor development, which could offer a reference for the technology development of new energy vehicles in China.