1 引言我国实行改革开放以来,国民经济迅猛发展,乘用车的拥有量大大增加。其中,除参与营运的以外,还有大量的私人用车。乘用车的悬架特性直接影响到车辆的操纵稳定性、制动稳定性和平顺性。随着乘用车行驶速度的提高,因乘用车的悬架装置技术状况恶化而引发的行车事故已十分严重。为了保证 1 Introduction Since the implementation of the reform and opening up in our country, the national economy has developed rapidly, and the ownership of passenger cars has greatly increased. Among them, in addition to participating in the operation, there are a large number of private cars. Passenger car suspension characteristics directly affect the vehicle handling stability, braking stability and ride comfort. With the increase of the traveling speed of the passenger car, the traffic accident caused by the deterioration of the technical condition of the suspension car of the passenger car has become very serious. to ensure that