Active suspension needs extra force to control it , but this could consume more energy and enhance the weight of vehicle 主动悬架需要靠外加作用力实现对悬架的控制。因此会提高车辆的耗能，增加车辆的自身重量。
All the active suspension systems above and corresponding passive suspension system are numerically simulated in matlab6 . 1 本文应用matlab6 . 1仿真软件对上述的汽车主动悬架系统和和相应的被动悬架系统进行了仿真研究。
Based on the simulation results , a fuzzy - controlled semi - active suspension is designed and developed , then the bench tests for it are carried out as well 在此基础上，设计了半主动悬架智能控制系统，并进行了台架试验。
It shows that the performances of the semi - active suspension are much better than that of traditional passive suspension in the ride comfort 结果表明半主动悬架系统在减少振动，提高汽车行使平顺性方面要优于传统被动悬架系统。
Variable rate semi - active suspension is a nonlinear system , but groovy control methods take on states limits when it is applied to the system 变刚度半主动悬架是一个非线性系统，而常规的控制策略应用于非线性系统具有一定的局限性。
Based on the simulation results , designs and develops a fuzzy - controlled semi - active suspension system in which dsp plays the main role 在此基础上,提出了基于磁流变阻尼器的模糊pid控制方法并设计开发了以dsp芯片为主控器件的阻尼器电控系统。
Furthermore , an active suspension control system simulation using a fuzzy control scheme , a pid control scheme and a fuzzy _ pid compound control scheme was proceeded respectively 在此基础上，进行了主动悬架的pip控制、模糊控制和模糊pid复合控制研究。
Computer simulations and frequency response plots illustrate active suspension is more advantageous than passive suspension in driving and handling performance 模拟计算结果及幅频特性图表明主动悬架在改善汽车行驶平顺性和操纵稳定性方面，要优于被动悬架。
