• CN:11-2187/TH
  • ISSN:0577-6686

›› 2000, Vol. 36 ›› Issue (6): 91-94.

• 论文 • 上一篇    下一篇

汽车半主动悬架的多目标优化设计

陈大跃   

  1. 上海交通大学振动、冲击、噪声国家重点实验室
  • 发布日期:2000-06-15

SEMI-ACTIVE SUSPENSION DESIGNED BY MULTI CRITERIAL OPTIMIZATION METHOD

Chen Dayue   

  1. Shanghai Jiaotong University
  • Published:2000-06-15

摘要: 提出了一种多目标优化设计汽车半主动悬架的方法,以车身加速度和轮胎动力的积分作为优化设计目标,选择阻尼系数、半主动阻尼控制逻辑、采样频率作为优化参数,利用德国宇航院(DLR)开发的控制系统的分析设计软件(ANDECS)对二类半主动阻尼器(即开关型和连续型)进行了研究,以一个受半正弦波激励的四分之一汽车模型为例比较各类被动、半主动和主动悬架的减振效果,证实本设计算法的减振效果。

关键词: 多目标优化设计, 非线性控制, 汽车半主动悬架

Abstract: For overcoming the drawback of the conflict between the ride comfortable and dynamic tire force in semi-active vehicle suspension design, the multi-criterions optimization method is presented. The integral of sprung mass’s acceleration and max dynamic tire force are selected as optimal design criterions. Besides the damper coefficient, the semi-active damper control logic and sampling time are also used as a set of optimal Parameters. Using the program of the analysis design of control systems (ANDECS) developed by German Aerospace Research Establishment(DLR), two kinds of semi-active damper (on-off and continuous) are investigated. The quarter-car model excited by a haversine-type bump is used as an example, the results of passive, semi-active (on-off and continuous) and active damper are compared with each other and effective of the design algorithm are proven.

Key words: Multi-criterions optimization, Non-linear control, Semi-active vehicle suspension

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