中文摘要：

为了研究惯容器一弹簧一阻尼器（ISD）半主动悬架系统对汽车平顺性和安全性的影响，建立了2自由度车辆ISD半主动悬架模型，采用模糊控制策略，以车身垂直加速度及车身垂直加速度变化率作为模糊控制器的输入信号对ISD半主动悬架系统进行了仿真分析。在此基础上，设计开发了基于dSPACE的半主动悬架模糊控制系统，并进行了台架试验研究，分析了ISD半主动悬架系统在不同车速下对随机输入路面的相应。仿真结果和台架试验结果基本吻合，结果表明：所建立的ISD半主动悬架数学模型正确，采用模糊控制的ISD半主动悬架系统在减少振动，提高汽车行驶平顺性方面要优于ISD悬架。

英文摘要：

ISD suspension has been widely studied by scholars,while semi-active control study on three components ISD suspension is still unsatisfactory. To study the influence of ISD semi-active suspension on automobile comfort and safety, a 2-DOF dynamic model for automobile ISD semi-active suspension was established. Simulation analysis adopted fuzzy control method with body vertical velocity and vertical acceleration signals as the fuzzy controller input was carried out on the suspension system. On this basis, a fuzzy control system for this suspension system was developed and designed by dSPACE, and its bench test was performed. The responses of ISD semi-active suspension to random road input at different velocity were analyzed. Simulation results were in agreement with experimental results. The results show that the mathematical model of ISD semi-active suspension is correct, and the ISD semi-active suspension with fuzzy control is superior to ISD suspension in damping suspension vibration as well as in improving vehicle running smoothness.