Abstract: This paper studies on semiactive control algorithm in automobile suspension.A full-car model with suspension travel and tire deflection is presented, and the result is compared with passive sy stem.It is observed that the on-off dampers reduce mean square of car body acceleration but exaggerate mean square tire deflections and suspension travels.

Key words: suspension system, semiactive control

摘要： 研究了汽车悬架系统阻尼半主动控制的算法.建立了悬架窜动(q₁,q₂,q₃)、轮胎变形(q₄,q₅,q₆,q₇)的整车模型,并将隔振效果与被动隔振作一对比.结果表明,开关式阻尼器降低了车身加速度的均方值,但增大了悬架窜动和轮胎变形的加速度均方值.

关键词: 悬架系统, 半主动控制