针对Ａｕｄｉ１００轿车动力总成的液压悬置，建立了单自由度振动系统；在试验基础上，采用Ｈｉｌｂｅｒｔ变换法检验了系统的非线性；采用参数识别方法识别了液压悬置系统的当量刚度和当量阻尼；利用得到的参数进行了液压悬置传递率的仿真计算，并得到验证 Aiming at the hydraulic mount of Audi100 sedan powertrain, a single degree of freedom vibration system was established. On the basis of the experiment, the nonlinearity of the system was tested by Hilbert transform method. The equivalent stiffness and equivalent of the hydraulic mount system were identified by parameter identification Damping; using the parameters obtained hydraulic suspension transmission rate of the simulation and verified