悬架系统的控制特性对车轮随机动载的作用

车辆悬架系统在车轮对路面的随机动载方面起着重要的作用 ,文章针对目前汽车普遍采用的被动悬架系统在行驶中对车辆振动性能控制的不利性 ,利用控制理论 ,分析了一种悬架控制系统的特性 ,提出通过对半主动悬架控制力的变化 ,可以得到不同的车轮随机动载传递函数特性曲线 ,从而对悬架减轻车轮随机动载的作用进行了分析 ,同时也指出了它对汽车平顺性的影响。此外还讨论比较了被动悬架与半主动悬架对减轻车轮对路面随机动载的不同特性

Influence of suspension control on the random dynamic loads on wheels

A good suspension system of vehicles plays an important role in reducing the random dynamic loads on wheels. In this paper, by making use of control theory, the control features of a semi active suspension system of vehicles are analyzed, and it is found that a favorable characteristic of the transfer function of the random dynamic loads on wheels can be obtained through adjusting the control power of the semi active suspension,so that the damage of the roadway can be decreased and the vehicle ride comfort may be improved in the meantime. A comparison is also made between the characters of the passive suspension and the semi active suspension in terms of the reduction of the random dynamic loads on wheels.