课程论文之电动汽车电机技术与革命.docVIP

电动汽车技术革命论文 电机技术 姓名：杨小波 学号：5110209157 班级：F1102006 学院：机械与动力工程学院 专业：机械动力类 指导老师：张希 手机 邮箱：852793014@ 摘 要 电动汽车作为一种新兴的车型，以其相对于传统机车具有效率高，对环境影响小的优势正逐渐取代汽油车，并且在能源危机和全球变暖的趋势下必将成为未来的主流。而电动机作为电动汽车的核心部分之一，其性能很大程度决定了汽车的性能，它实现了电能向机械能的转化，并且在一定条件下可以回收机械能变为电能。相比于汽油车，电动机提供的扭矩普遍比内燃机提供的要小，因而设法使电动汽车的电机达到汽油机的驱动性能一直是一个重要的课题。由于车载电机的特殊性，用于电动汽车的电动机必须具备高密度、高效率、宽调速等特点，这就要求用于电动汽车的电动机要不同于一般的工业用电动机。本文将围绕电动汽车电动机展开论述，介绍电动机的发展历程和基本工作原理，主要技术参数，现有电动汽车电机的种类及其特点，研究现状和发展前景等内容。 关键词：电动机、历史、原理、前景 ABSTRCT As a new type of car,electric vehicles are of higher efficiency and less impact on the environment compared to the traditional ones. They are taking place of the gasoline car gradually and will eventually replace them under the background of energy crisis and global warming.Electromotor,one of the central parts of the electric vehicle,determines the whole car’s property to a large extent for it act as the role of transforming the electrical energy to the mechanical energy.And in turn,it can also change the mechanical energy to the electrical energy,just like a generator. But the electric motor provide an average of less torsion than the combustion engine. So it’s always a hot research topic to make the property of the electric motor catch up with the combustion engine’s. Due to the unique requirement for the car driving, the electric motor need to have heavy energy density ,strong resistance to vibration ,perfect tolerance for huge difference in temperature,etc. And also it should have a wide range of regulation so we can obtain the idea velocity we want. . In this thesis we will talk about the electric motor that applied in the electric vehicle,giving a brief introduc