基于ug电动汽车传动系统减速器方案优化设计大学学位论文.doc

摘要 环保与节能是当前全世界发展的一大主题。我国也提出建设节约型社会的基本国策，实现这一目标的重要手段就有电动汽车。由于国家的支持，社会的需要，电动汽车正处于发展的上升期。但是也面临着许多难以解决的问题。电池、电机、控制系统的性能与价格问题，使得电动汽车的发展遇到难题。本文主要介绍了电动汽车的控制系统，电动机，汽车主减速器等电动汽车汽车核心部件的发展状况，未来电动汽车控制系统的发展趋势，并指出了研究的重点与难点。 汽车主减速器和差速器是汽车传动中的最核心的部件之一。它能够将传动装置产生的发动机转矩传给驱动车轮，以实现降低速度增大扭矩。本次设计的是有关家用轿车汽车的传动系统以及主减速器总成。并使其具有通过性。本次设计通过对市面上各种不同形式样式的控制系统，电机，减速器的对比后，参考实际家用轿车为原始设计参数，对比不同类型的控制系统、电机、减速器后。确定主传动比，并对其中主要的齿轮进行齿面接触强度和齿轮弯曲强度进行校核。对轴承的选用在满足需求的基础上，力求结构简单，寿命长，经济实惠。对轴的设计过程中，着重于齿轮的安置，并对其所受最大载荷的危险截面进行了强度校核。最终设计出一种合理可靠，经济实惠的电动汽车减速器。希望能对电动汽车发展尽绵薄之力，让世界生态环境越来越好。 关键词：电动汽车，控制系统，主减速器，电机，轴承，传动比 Abstract Environmental protection and energy conservation is a major theme of the current development of the world. China also put forward the construction of a conservation oriented society, the basic national policy, to achieve this goal is an important means of electric vehicles. Due to the support of the state, the needs of the community, electric vehicles are in the development of the rising period. But there are many difficult problems to solve. Battery, motor, control system performance and price issues, making the development of electric vehicles encountered problems. This paper mainly introduces the control system of electric vehicle, motor vehicle main reducing gear for electric vehicles, such as core auto parts development, the future electric vehicle control system development trend, and points out the emphases and difficulties of the research. Automobile main reducer and differential is one of the most important parts in automobile transmission. The engine torque of the transmission device can be transmitted to the driving wheel to realize the reduction of the speed increasing torque. This design is about the cars drive system and the main reducer assembly. And make it through sex. This design through to market a variety of different forms of control system, motor, reducer after contrast, reference actual domestic car as the original design parameters, comparison of different