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对一种车辆主动悬架装置进行了研究。首先对该主动悬架系统进行了分析并建立了该主动悬架系统的数学模型,然后应用线性二次型最优控制方法设计了全状态反馈控制器,以获得最优的主动控制力。对控制器参数的物理意义进行了分析。最后,按主动悬架和被动悬架方式对系统进行了仿真,结果表明:在车辆性能改善方面主动系统优于被动系统。
A vehicle active suspension device was studied. First of all, the active suspension system is analyzed and the mathematical model of the active suspension system is established. Then the state feedback controller is designed by linear quadratic optimal control method to obtain the optimal active control force. The physical meaning of controller parameters is analyzed. Finally, the system is simulated according to active suspension and passive suspension. The results show that the active system is superior to the passive system in terms of vehicle performance improvement.