1、 1 2600 单词， 12900 英文字符 ,3900 汉字 毕业设计（论文） 附录资料 学 院 汽车与交通学院 专 业 交通运输（汽车电子技术与检测诊断） 班 级 学 号 姓 名 指导教师 2013年 1 月 6 日 2 一 、英文翻译 Survey of Controllable Suspension System for Off-road Vehicles Abstract： The controllable suspension system can improve the performances of off-road vehicles both on road and cros
2、s- country So far， four controllable suspensions， that is， body height control， active， semi-active and slow-active suspensions， have been developed For off-road vehicles， the slow-active suspension and the semi-active suspension which have controllable stiffness， damping and body height are more ap
3、propriate to use For many years，some control methodologies for controllable suspension systems have been developed along with the development of modern control theory， and two or more original control method s are integrated as a new control method Today， for military or civilian off-road vehicles，
4、the R& D of controllable suspension systems is ongoing Key Words： control theory； survey； controllable suspension； off-road vehicle The suspension system is an important part of the vehicle， which influences riding comfort and handle-stability greatly Since the first pair of leaf spring was used in
5、carriage，suspension systems were uncontrollable for a long time and named as passive suspensio n system A typical passive suspension system consists of springs， dampers and some control arms， which are once invariable designed But， the roads for vehicle running are various For the vehicles suspensio
6、n system， different kinds of roads make different inputs Thus ， different suspension parameters， such as stiffness， damping and body height，should be designed to minimize the impact from ground and the jounce of body However，its impossible that the traditional vehicles with invariable passive suspension system perform well on multifarious roads For off-road
