1. 研究目的与意义（文献综述）

1.1 purpose and significance

nowadays, the number of cars in the worldkeeps increasing, the pollution of the vehicle emission to the environment andthe use of the resources are greatly increased. with the rapid development ofthe automotive industry, a large number of internal combustion engine vehicles,a large number of emissions on the environment is very bad, and now the cityhas been very serious haze phenomenon. and, the use of diesel locomotiveconsumes a lot of oil this non-renewable resources, it will cause the shortageof petroleum resources, in this context, china vigorously promote energy-savingenvironmental protection and sustainable development strategy ^[10].new energy vehicles have great advantages in solving the problems ofenvironment and resources. compared with the internal combustion engine, the electricvehicle uses the electric energy as the energy source, and the power system iscomposed of a driving motor, a single speed reducer and a control unit. the pureelectric vehicle save energy, no pollution, environmental damage and otheradvantages, getting the majority of national attention, and vigorousdevelopment, as the impact of the suspension system of electric vehicle comfortand safety. its research and development space will be more.

the suspension system is the maindevice which connects the wheel and the body. it is mainly to absorb thevibration from the ground to the car body ^[1]. the development ofthe electric vehicle suspension system needs deep theoretical foundation andsuperb experimental means for completely independent development of theelectric vehicle, suspension system in hard point optimization, structuraldesign, kamp;c analysis, site checking and new technology, there is a certaingap between the advanced countries. cae technology is an important means of automobiledevelopment, with supercomputing and parallel development, application of caetechnology in the automotive industry more and more widely, and the multi-bodydynamics software adams, can effectively shorten the design period ofsuspension, the vehicle handling stability and ride comfort simulation. it hasa greater impact on speeding up the progress of research and reducing the costof research, and it is helpful for the suspension system ^[4].

2. 研究的基本内容与方案

2.1 Researchcontent and aim

Domestic smalllow-speed electric vehicle configuration is simple, the interior is simple,only the basic safety equipment, this kind of electric vehicle handlingstability and ride comfort is difficult compared with traditional cars ^[8].The ride comfort and handling stability will not only cause serious impact onpassenger comfort and fatigue degree and the personal safety of the passengers,but also affects the vehicle fuel consumption and traffic safety, and the goalis to choose suitable models and has good feedback to ensure that the vehiclesuspension system has good maneuverability and stability and ride comfort.

2.2 Proposed technical scheme

Car as the research object, with ADAMS and MATLAB software platform forresearch and design a suitable suspension, use software for electric vehiclehandling stability and riding comfort analysis, to ensure the good performanceof car.

3. 研究计划与安排

1-2 (7semester,19 to 20 weeks) determine the design plan descriptions of the graduation designtopic selection, graduate (parameters), the campus information collection

3 (8 semester 1 week) design, documentretrieval, complete the opening report

practice outsidethe (8 semester 2-3 weeks), external data collection, finish internship report

4. 参考文献（12篇以上）

[1] chen jiarui.vehicle structure: ii [m]. beijing: mechanical industry press, 2001

[2] wang wangyu.automotive design [m]. beijing: mechanical industry press, 2004

[3]wang guoquan. virtualtest of vehicle ride comfort research [d]. china agricultural university, 2002.