1. 研究目的与意义（文献综述）

1.purpose and significance

1.1 research background

pure electric vehicles are currently the only vehicles in the world that can achieve zero emissions. due to the requirements of environmental protection and the development of new materials and new technologies, the research and development of pure electric vehicles is a strategic choice to realize the leap-forward development of china's engineering technology, and an important choice for the sustainable development of china's automobile industry. for the development of new energy vehicles, china can seize this opportunity and vigorously study and develop electric vehicles. it is bound to hope to reach the world's advanced level in this field and form a new growth point for china's pillars .

2. 研究的基本内容与方案

2.basic content, objectives, technical solutions and measures to be adopted for research (design)

2.1 basic content of research (design)

(1) according to the basic parameters of the vehicle, determine the basic parameters of the main components of the driving axle such as the final drive, the differential, the half shaft, and the drive axle housing;

3. 研究计划与安排

3.schedule

1-2 (7th week of the 7th semester)

determine the graduation design topic, improve the graduation design task book (related parameters), and collect data inside and outside the school

4. 参考文献（12篇以上）

4.reference

[1]徐亚磊. 纯电动汽车驱动系统选型及仿真研究[d]. 武汉：武汉理工大学, 2012.

[2]刘宗巍, 史天泽, 郝瀚, 等. 中国汽车技术的现状、发展需求与未来方向[j]. 汽车技术, 2017, (1)：1-6 47.